CN116056067B - Terminal identification method, device, server and storage medium - Google Patents

Abstract

The invention provides a terminal identification method, a device, a server and a storage medium, relates to the technical field of communication, and solves the technical problem that the server in the related art possibly cannot identify which data belong to which terminals and can influence the effectiveness of terminal identification. The method comprises the following steps: acquiring signaling data of a plurality of terminals; determining the track similarity between the first IMEI and the second IMEI based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI at each moment; and under the condition that the track similarity between the first IMEI and the second IMEI is larger than or equal to a similarity threshold value, determining that the second IMEI belongs to a first terminal, wherein the first terminal is a terminal corresponding to the first IMEI in the plurality of terminals.

Description

Terminal identification method, device, server and storage medium

Technical Field

The present invention relates to the field of communication technologies, and in particular to a terminal identification method, device, server and storage medium.

Background technique

Currently, a terminal can carry out related services based on an installed subscriber identity module (SIM) card.

However, since the SIM card is an integrated circuit (IC) card issued by the operator, and some data used by the terminal (such as the terminal identification) is customized by the terminal manufacturer, in some cases the data of the operator and the manufacturer cannot be effectively interoperable, it may not be possible to identify which data belongs to which terminal, which will affect the effectiveness of terminal identification.

Summary of the invention

The present invention provides a terminal identification method, device, server and storage medium, which solve the technical problem in the related art that, because the data of operators and manufacturers cannot be effectively intercommunication in some cases, it may not be possible to identify which data belongs to which terminals, which affects the effectiveness of terminal identification.

In a first aspect, the present invention provides a terminal identification method, comprising: obtaining signaling data of multiple terminals, the signaling data including multiple international mobile equipment identities (IMEIs), and a cell corresponding to each IMEI in the multiple IMEIs at each time in multiple moments; determining a trajectory similarity between the first IMEI and the second IMEI based on a cell corresponding to the first IMEI at each time and a cell corresponding to the second IMEI at each time, the first IMEI being one of the multiple IMEIs, the first i characters in the second IMEI being the same as the first i characters in the first IMEI, and i being an integer greater than or equal to 1; when the trajectory similarity between the first IMEI and the second IMEI is greater than or equal to a similarity threshold, determining that the second IMEI belongs to a first terminal, and the first terminal is a terminal corresponding to the first IMEI among the multiple terminals.

Optionally, the above-mentioned multiple moments are moments included in a preset time period, the signaling data includes multiple cells, and the above-mentioned determining the trajectory similarity between the first IMEI and the second IMEI based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI at each moment specifically includes: determining a first number, the first number is used to characterize the number of times that the first IMEI and the second IMEI correspond to the same cell at the same moment within the preset time period; determining a second number, the second number is used to characterize the number of times that the first IMEI corresponds to the first cell at the first moment and the second IMEI corresponds to the second cell at the first moment within the preset time period, the first moment is any one of the multiple moments, the first cell is any one of the multiple cells, and the distance between the second cell and the first cell is less than or equal to a distance threshold; based on the first number and the second number, determining the trajectory similarity between the first IMEI and the second IMEI.

Optionally, the above-mentioned multiple moments are moments included in a preset time period, the signaling data includes multiple cells, and the above-mentioned determination of the trajectory similarity between the first IMEI and the second IMEI based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI at each moment specifically also includes: determining a third number, the third number is used to characterize the number of times that the first IMEI corresponds to the first cell at the first moment and the second IMEI corresponds to the second cell at the second moment within the preset time period, the first moment is any one of the multiple moments, the difference between the second moment and the first moment is less than or equal to the duration threshold, the first cell is any one of the multiple cells, and the distance between the second cell and the first cell is less than or equal to the distance threshold; based on the third number, determining the trajectory similarity between the first IMEI and the second IMEI.

Optionally, the above-mentioned multiple moments are moments included in a preset time period, the preset time period includes M time intervals, M is an integer greater than or equal to 2, and the trajectory similarity between the first IMEI and the second IMEI is determined based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI at each moment. Specifically, it also includes: based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI at each moment, N time intervals are determined, the permanent cell corresponding to the first IMEI in each time interval of the N time intervals is the same as the permanent cell corresponding to the second IMEI in each time interval, and N is an integer greater than or equal to 1; based on N and M, the trajectory similarity between the first IMEI and the second IMEI is determined.

In a second aspect, the present invention provides a terminal identification device, comprising: an acquisition module and a determination module; the acquisition module is used to acquire signaling data of multiple terminals, the signaling data including multiple IMEIs and a cell corresponding to each IMEI in the multiple IMEIs at each moment in multiple moments; the determination module is used to determine the trajectory similarity between the first IMEI and the second IMEI based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI at each moment, the first IMEI is one of the multiple IMEIs, the first i characters in the second IMEI are the same as the first i characters in the first IMEI, i is an integer greater than or equal to 1; the determination module is also used to determine that the second IMEI belongs to a first terminal when the trajectory similarity between the first IMEI and the second IMEI is greater than or equal to a similarity threshold, and the first terminal is a terminal corresponding to the first IMEI among the multiple terminals.

Optionally, the above-mentioned multiple moments are moments included in a preset time period, and the signaling data includes multiple cells; the determination module is specifically used to determine a first number, and the first number is used to characterize the number of times that the first IMEI and the second IMEI correspond to the same cell at the same time within the preset time period; the determination module is specifically used to determine a second number, and the second number is used to characterize the number of times that the first IMEI corresponds to the first cell at the first moment and the second IMEI corresponds to the second cell at the first moment within the preset time period, the first moment is any one of the multiple moments, the first cell is any one of the multiple cells, and the distance between the second cell and the first cell is less than or equal to a distance threshold; the determination module is specifically used to determine the trajectory similarity between the first IMEI and the second IMEI based on the first number and the second number.

Optionally, the above-mentioned multiple moments are moments included in a preset time period, and the signaling data includes multiple cells; the determination module is specifically used to determine a third number, and the third number is used to characterize the number of times that the first IMEI corresponds to the first cell at the first moment and the second IMEI corresponds to the second cell at the second moment within the preset time period, the first moment is any one of the multiple moments, the difference between the second moment and the first moment is less than or equal to the duration threshold, the first cell is any one of the multiple cells, and the distance between the second cell and the first cell is less than or equal to the distance threshold; the determination module is specifically used to determine the trajectory similarity between the first IMEI and the second IMEI based on the third number.

Optionally, the above-mentioned multiple moments are moments included in a preset time period, and the preset time period includes M time intervals, where M is an integer greater than or equal to 2; the determination module is specifically used to determine N time intervals based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI at each moment, and the permanent cell corresponding to the first IMEI in each time interval in the N time intervals is the same as the permanent cell corresponding to the second IMEI in each time interval, and N is an integer greater than or equal to 1; the determination module is specifically used to determine the trajectory similarity between the first IMEI and the second IMEI based on N and M.

In a third aspect, the present invention provides a server, comprising: a processor and a memory configured to store processor executable instructions; wherein the processor is configured to execute the instructions to implement any one of the optional terminal identification methods in the first aspect above.

In a fourth aspect, the present invention provides a computer-readable storage medium having instructions stored thereon. When the instructions in the computer-readable storage medium are executed by a server, the server is enabled to execute any one of the optional terminal identification methods in the first aspect.

The terminal identification method, device, server and storage medium provided by the present invention can obtain signaling data of multiple terminals by the server, and then determine the trajectory similarity between the first IMEI and the second IMEI based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI, which is used to characterize the similarity between the position of the first IMEI at each moment in multiple moments and the position of the second IMEI at each moment in multiple moments. When the trajectory similarity between the first IMEI and the second IMEI is greater than or equal to the similarity threshold, the server determines that the second IMEI belongs to the first terminal, and the first terminal is the terminal corresponding to the first IMEI. In the present invention, since the first i characters of the first IMEI and the second IMEI are the same, the terminal model corresponding to the first IMEI is the same as the terminal model corresponding to the second IMEI. When the server finds that, among the two IMEIs corresponding to the same terminal model, there are a large number of similar positions among the multiple positions where the first IMEI is located at multiple times and the multiple positions where the second IMEI is located at multiple times, the server determines that the second IMEI and the first IMEI belong to the same terminal. It can accurately determine that the data corresponding to the first IMEI and the data corresponding to the second IMEI are data of the same terminal, thereby improving the effectiveness of terminal identification.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

FIG1 is a schematic diagram of a flow chart of a terminal identification method provided by an embodiment of the present invention;

FIG2 is a schematic flow chart of another terminal identification method provided by an embodiment of the present invention;

FIG3 is a schematic diagram of a flow chart of another terminal identification method provided by an embodiment of the present invention;

FIG4 is a schematic diagram of a flow chart of another terminal identification method provided by an embodiment of the present invention;

FIG5 is a schematic diagram of the structure of a terminal identification device provided by an embodiment of the present invention;

FIG. 6 is a schematic diagram of the structure of another terminal identification device provided by an embodiment of the present invention.

Detailed ways

The terminal identification method, device, server and storage medium provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The terms "first" and "second" in the specification and drawings of this application are used to distinguish different objects rather than to describe a specific order of the objects. For example, the first IMEI and the second IMEI are used to distinguish different IMEIs rather than to describe a specific order of the IMEIs.

In addition, the terms "including" and "having" and any variations thereof mentioned in the description of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include other steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

The term "and/or" used in the present application includes using either or both methods at the same time.

In the description of the present application, unless otherwise specified, “plurality” means two or more.

Based on the description in the background technology, in the related technology, due to the fact that the data of the operator and the manufacturer cannot be effectively intercommunication in some cases, it may not be possible to identify which data belongs to which terminal, which will affect the effectiveness of terminal identification. Based on this, the embodiment of the present invention provides a terminal identification method, device, server and storage medium. Since the first i characters of the first IMEI and the second IMEI are the same, the terminal model corresponding to the first IMEI is the same as the terminal model corresponding to the second IMEI. When the server has a large number of similar positions in the multiple positions where the first IMEI is located at multiple times and the multiple positions where the second IMEI is located at multiple times in the two IMEIs corresponding to the same terminal model, it is determined that the second IMEI belongs to the same terminal as the first IMEI. It can accurately determine that the data corresponding to the first IMEI and the data corresponding to the second IMEI are the data of the same terminal, thereby improving the effectiveness of terminal identification.

The terminal identification method, device, server and storage medium provided by the embodiment of the present invention are applied to the scenario of terminal identification. After the server obtains the signaling data of multiple terminals, the trajectory similarity between the first IMEI and the second IMEI can be determined based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI at each moment, and when the trajectory similarity between the first IMEI and the second IMEI is greater than or equal to the similarity threshold, it is determined that the second IMEI belongs to the first terminal, and the first terminal is the terminal corresponding to the first IMEI.

As shown in FIG. 1 , the terminal identification method provided by the embodiment of the present invention may include S101 - S103 .

S101. The server obtains signaling data of multiple terminals.

The signaling data includes a plurality of IMEIs and a cell corresponding to each IMEI in the plurality of IMEIs at each moment in a plurality of moments.

It can be understood that a terminal may correspond to one or more IMEIs, and one IMEI corresponds to one SIM card at a time. The IMEI can be understood as an identifier of a card slot, and one IMEI can uniquely identify a card slot.

It should be understood that a cell corresponding to an IMEI at a moment is a cell used when the terminal performs related services (such as data services, voice services, etc.) based on the SIM card corresponding to the IMEI.

In an optional implementation, the server may obtain the signaling data of the multiple terminals in different network standards from different types of structures. Specifically, the server may include an IU interface, an S1-MME interface, and an N1/N2 interface, and the server may obtain the signaling data in the 3G network standard from the IU interface, obtain the signaling data in the 4G network standard from the S1-MME interface, and obtain the signaling data in the 5G network standard from the N1/N2 interface.

S102: The server determines the similarity of the trajectories between the first IMEI and the second IMEI based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI at each moment.

The first IMEI is one of multiple IMEIs, the first i characters in the second IMEI are the same as the first i characters in the first IMEI, and i is an integer greater than or equal to 1.

It should be understood that the trajectory of an IMEI is used to characterize the location of the IMEI at each of multiple moments. The server can determine the trajectory similarity between the first IMEI and the second IMEI based on the location of the first IMEI at each of the multiple moments and the location of the second IMEI at each of the multiple moments. The trajectory similarity between the first IMEI and the second IMEI is used to characterize the similarity between the location of the first IMEI at each of the multiple moments and the location of the second IMEI at each of the multiple moments.

It can be understood that when the first IMEI corresponds to the first cell at the first moment, it means that the first cell is providing network services for the first IMEI, and the position of the first IMEI at the first moment is relatively close to the position of the first cell. At this time, the server can determine the position of the first cell as the position of the first IMEI at the first moment.

In an implementation manner of the embodiment of the present invention, the server may obtain the location of the first cell from a base station corresponding to the first cell.

It can be understood that an IMEI includes multiple characters. When the first i characters of the first IMEI are the same as those of the second IMEI, it means that the terminal model corresponding to the first IMEI is the same as the terminal model corresponding to the second IMEI. At this time, the server can determine whether the two trajectories corresponding to the same terminal model are the same.

Optionally, the first IMEI can be composed of 15 digits, of which the first 6 digits are the type approval code (TAC) of the IMEI, indicating the model of the terminal corresponding to the first IMEI, the 7th and 8th digits are the final assembly code (FAC) of the IMEI, indicating the origin of the terminal corresponding to the first IMEI, the 9th to 14th digits are the serial number (SNR) of the IMEI and the 15th digit is a check code.

Exemplarily, i can be equal to 8, and the first 8 characters in the first IMEI are the same as the first 8 characters in the second IMEI. It can also be understood that the TAC of the first IMEI is the same as the TAC of the second IMEI, and the FAC of the first IMEI is the same as the FAC of the second IMEI. At this time, the server can determine that the model of the terminal corresponding to the first IMEI is the same as the model of the terminal corresponding to the second IMEI, and the origin of the terminal corresponding to the first IMEI is the same as the origin of the terminal corresponding to the second IMEI. Since a terminal may include one or more IMEIs, at this time, the server can determine that the terminal corresponding to the first IMEI and the terminal corresponding to the second IMEI may be the same terminal.

S103: When the trajectory similarity between the first IMEI and the second IMEI is greater than or equal to a similarity threshold, the server determines that the second IMEI belongs to the first terminal.

The first terminal is a terminal corresponding to the first IMEI among multiple terminals.

It should be understood that when the trajectory similarity between the first IMEI and the second IMEI is greater than or equal to the similarity threshold, it means that the trajectory similarity between the first IMEI and the second IMEI is relatively large. Among the two IMEIs corresponding to the same terminal model, the number of similar locations of the first IMEI at multiple times and the number of similar locations of the second IMEI at multiple times are relatively large. At this time, the server can determine that the first IMEI and the second IMEI belong to the same terminal. Since the terminal corresponding to the first IMEI is the first terminal, the server can determine that the second IMEI also belongs to the first terminal.

It can be understood that when the trajectory similarity between the first IMEI and the second IMEI is less than the similarity threshold, it means that the trajectory similarity between the first IMEI and the second IMEI is small, and among the two IMEIs corresponding to the same terminal model, the number of similar locations of the first IMEI at multiple times and the number of similar locations of the second IMEI at multiple times are small. At this time, the server can determine that the first IMEI and the second IMEI belong to the same terminal.

In an optional implementation, after determining that the first IMEI and the second IMEI belong to the same terminal, the server can determine, based on the signaling data of the first MIEI and the signaling data of the second IMEI, that the terminal has more related services based on the SIM card corresponding to the first IMEI. At this time, the server can recommend services to the SIM card corresponding to the second IMEI, such as free traffic, increased call duration, etc., to improve the terminal's utilization rate of the SIM card corresponding to the second IMEI.

The technical solution provided by the above embodiment can at least bring the following beneficial effects: As can be seen from S101-S103, the server can obtain signaling data of multiple terminals, and then determine the trajectory similarity between the first IMEI and the second IMEI based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI, which is used to characterize the similarity between the position of the first IMEI at each moment in multiple moments and the position of the second IMEI at each moment in multiple moments. When the trajectory similarity between the first IMEI and the second IMEI is greater than or equal to the similarity threshold, the server determines that the second IMEI belongs to the first terminal, and the first terminal is the terminal corresponding to the first IMEI. In the present invention, since the first i characters of the first IMEI and the second IMEI are the same, the terminal model corresponding to the first IMEI is the same as the terminal model corresponding to the second IMEI. When the server finds that, among the two IMEIs corresponding to the same terminal model, there are a large number of similar positions among the multiple positions where the first IMEI is located at multiple times and the multiple positions where the second IMEI is located at multiple times, the server determines that the second IMEI and the first IMEI belong to the same terminal. It can accurately determine that the data corresponding to the first IMEI and the data corresponding to the second IMEI are data of the same terminal, thereby improving the effectiveness of terminal identification.

In an implementation manner of an embodiment of the present invention, the above-mentioned multiple moments are moments included in a preset time period, and the signaling data includes multiple cells. In combination with Figure 1, as shown in Figure 2, the above-mentioned server determines the trajectory similarity between the first IMEI and the second IMEI based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI at each moment, specifically including S1021-S1023.

S1021. The server determines a first quantity.

The first number is used to represent the number of times that the first IMEI and the second IMEI correspond to the same cell at the same time within the preset time period.

It can be understood that the multiple cells include the cell corresponding to each IMEI in the multiple IMEIs at each moment in the multiple moments.

It should be understood that when the number of cells corresponding to the first IMEI and the second IMEI at the same time is the same, it means that the location of the terminal corresponding to the first IMEI and the location of the terminal corresponding to the second IMEI are both within the coverage of the cell, the location of the first IMEI is the same as the location of the second IMEI, or the distance between the location of the first IMEI and the location of the second IMEI is close.

It can be understood that when the value of the first number is large, it means that the first IMEI corresponds to the same cell at the same time more times within the preset time period, and the terminal corresponding to the first IMEI and the terminal corresponding to the second IMEI are located closer to each other at multiple times. When the first number is larger, the server can determine that the trajectory of the first IMEI is more similar to the trajectory of the second IMEI.

Optionally, the signaling data of the first IMEI and the signaling data of the second IMEI may include a cell identifier, and the server may determine the number of times that the first IMEI and the second IMEI correspond to the same cell at the same time based on the cell identifier.

Exemplarily, assuming that there are 5 moments in the preset time period, the cell corresponding to the first IMEI at moment 1 is cell A, the cell corresponding to the cell at moment 2 is cell A, the cell corresponding to the cell at moment 3 is cell B, the cell corresponding to the cell at moment 4 is cell C, and the cell corresponding to the cell at moment 5 is cell D, the cell corresponding to the second IMEI at moment 1 is cell E, the cell corresponding to the cell at moment 2 is cell E, the cell corresponding to the cell at moment 3 is cell B, the cell corresponding to the cell at moment 4 is cell C, and the cell corresponding to the cell at moment 5 is cell D. At this time, the server can determine that the first IMEI and the second IMEI correspond to the same cell at moment 3, moment 4 and moment 5, and the cells corresponding to the three moments are cell B, cell C and cell D respectively. In this way, the server determines that the first number is 3.

In an optional implementation, the first moment can also be used to characterize the number of times that the first IMEI corresponds to the first cell at the first moment and the second IMEI corresponds to the first cell at the second moment within the preset time period, and the difference between the first moment and the second moment is less than or equal to the duration threshold.

Optionally, the duration threshold may be 1 minute.

Optionally, the preset time period may be 24 hours.

S1022. The server determines a second quantity.

The second number is used to characterize the number of times that the first IMEI corresponds to the first cell at the first moment within the preset time period, and the second IMEI corresponds to the second cell at the first moment, the first moment is any one of the multiple moments, the first cell is any one of the multiple cells, and the distance between the second cell and the first cell is less than or equal to the distance threshold.

It should be understood that when the distance between the second cell and the first cell is less than or equal to the distance threshold, it means that the distance between the second cell and the first cell is relatively close. When the first IMEI corresponds to the first cell at the first moment, and the second IMEI corresponds to the second cell at the first moment, it means that the distance between the terminal corresponding to the first IMEI and the terminal corresponding to the second IMEI is also relatively close.

Exemplarily, assuming that there are 5 moments in the preset time period, the cell corresponding to the first IMEI at moment 1 is cell A, the cell corresponding to the cell at moment 2 is cell A, the cell corresponding to the cell at moment 3 is cell B, the cell corresponding to the cell at moment 4 is cell C, and the cell corresponding to the cell at moment 5 is cell D, the cell corresponding to the second IMEI at moment 1 is cell E, the cell corresponding to the cell at moment 2 is cell E, the cell corresponding to the cell at moment 3 is cell B, the cell corresponding to the cell at moment 4 is cell C, and the cell corresponding to the cell at moment 5 is cell D, and the distance between the cell A and the cell E is 100 meters. At this time, the server can determine that the first IMEI and the second IMEI correspond to different cells at moment 1 and moment 2, and the distance between the cell A and the cell E is less than the distance threshold. In this way, the server determines that the second number is 2.

In one implementation of an embodiment of the present invention, the network standards of the cells corresponding to the first IMEI and the second IMEI at the same time are different, resulting in different identifiers of the cells corresponding to the first IMEI and the second IMEI at the same time. For example, the first cell is a 5G cell and the second cell is a 4G cell.

In an optional implementation, the operator corresponding to the first cell may be different from the operator corresponding to the second cell, resulting in different identifiers of the cells corresponding to the first IMEI and the second IMEI at the same time.

Optionally, the distance threshold may be 200 meters.

S1023: The server determines the trajectory similarity between the first IMEI and the second IMEI based on the first number and the second number.

In an implementation manner of the embodiment of the present invention, the server may determine the sum of the first number and the second number as the trajectory similarity between the first IMEI and the second IMEI.

In an optional implementation, the server may also assign a first weight parameter to the first quantity and a second weight parameter to the second quantity, and then determine the sum of the first product and the second product as the trajectory similarity between the first IMEI and the second IMEI, wherein the first product is the product of the first quantity and the first weight parameter, and the second product is the product of the second quantity and the second weight parameter.

It should be noted that, at this time, the above similarity threshold can be understood as a quantity threshold.

In an implementation manner of an embodiment of the present invention, the above-mentioned multiple moments are moments included in a preset time period, and the signaling data includes multiple cells. In combination with Figure 1, as shown in Figure 3, the above-mentioned server determines the trajectory similarity between the first IMEI and the second IMEI based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI at each moment, and specifically also includes S1024-S1025.

S1024. The server determines a third quantity.

The third number is used to characterize the number of times that the first IMEI corresponds to the first cell at the first moment and the second IMEI corresponds to the second cell at the second moment within a preset time period, the first moment is any one of the multiple moments, the difference between the second moment and the first moment is less than or equal to the duration threshold, the first cell is any one of the multiple cells, and the distance between the second cell and the first cell is less than or equal to the distance threshold.

It can be understood that when the first IMEI corresponds to the first cell at the first moment within the preset time period, and the second IMEI corresponds to the second cell at the second moment, and the distance between the first cell and the second cell is less than or equal to the distance threshold, and the difference between the first moment and the second moment is less than or equal to the duration threshold, it means that the positions of the first IMEI and the second IMEI at similar moments are similar, and when the third number is large, it means that the trajectories of the first IMEI and the second IMEI within the preset time period are relatively similar.

S1025. The server determines the trajectory similarity between the first IMEI and the second IMEI based on the third quantity.

It can be understood that, when the third number is larger, it means that the trajectories between the first IMEI and the second IMEI are more similar. At this time, the server can determine the third number as the trajectory similarity between the first IMEI and the second IMEI, and then when the third number is greater than the similarity threshold, the server can determine that the second IMEI belongs to the first terminal.

In another optional implementation, the server may also determine a fourth number, which is the number of multiple moments included in the signaling data corresponding to the first IMEI within a preset time period, and then determine the ratio between the third number and the fourth number as the trajectory similarity between the first IMEI and the second IMEI. At this time, the similarity threshold is a percentage, and exemplarily, the similarity threshold is 80%.

In one implementation of an embodiment of the present invention, the above-mentioned multiple moments are moments included in a preset time period, and the preset time period includes M time intervals, M is an integer greater than or equal to 2. In combination with Figure 1, as shown in Figure 4, after the above-mentioned server obtains signaling data of multiple terminals, the terminal identification method also includes S1026-S1027.

S1026. The server determines N time intervals based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI at each moment.

The permanent cell corresponding to each time interval of the first IMEI in N time intervals is the same as the permanent cell corresponding to the second IMEI in each time interval, and N is an integer greater than or equal to 1.

It should be understood that the resident cell of an IMEI in a time interval is a cell having a larger number of cell identifiers among the cell identifiers included in the signaling data of the IMEI in the time interval.

Exemplarily, the first IMEI includes 5 corresponding moments in time interval 1, and the cell identifiers corresponding to the 5 moments are cell A, cell B, cell C, cell A and cell A respectively. At this time, the server determines that the permanent cell of the first IMEI in time interval 1 is cell A.

It can be understood that when the permanent cell corresponding to the first IMEI in the first time interval is the same as the permanent cell corresponding to the second IMEI in the first time interval, it means that the position of the first IMEI in the first time interval is similar to the position of the second IMEI in the first time interval. When the value of N is larger, the positions of the first IMEI and the second IMEI are more similar.

It should be noted that, in the M time intervals, each time interval includes at least two moments.

S1027: The server determines the trajectory similarity between the first IMEI and the second IMEI based on N and M.

It can be understood that the trajectory similarity between the first IMEI and the second IMEI can also be used to characterize the similarity between the permanent cell of the first IMEI and the permanent cell of the second IMEI within a preset time period.

In an implementation manner of the embodiment of the present invention, the server may determine the ratio of N to M as the trajectory similarity between the first IMEI and the second IMEI. In this case, the similarity threshold is a ratio threshold.

For example, assuming that the preset time period is 24 hours, the preset time period includes 4 time intervals, namely 8:00-12:00, 12:00-18:00, 18:00-22:00 and 22:00-8:00. The permanent cell of the first IMEI from 8:00 to 12:00 is cell A, and the permanent cell of the second IMEI from 8:00 to 12:00 is also cell A. The permanent cell of the first IMEI from 12:00 to 18:00 is cell A, and the permanent cell of the second IMEI from 12:00 to 18:00 is cell A. The permanent cell of MEI from 12:00 to 18:00 is also cell A, the permanent cell of the first IMEI from 18:00 to 22:00 is cell B, the permanent cell of the second IMEI from 18:00 to 22:00 is cell D, the permanent cell of the first IMEI from 22:00 to 8:00 is cell C, and the permanent cell of the second IMEI from 22:00 to 8:00 is also cell C. At this time, the server can determine that M is 4, N is 3, and determine that the trajectory similarity is 75%.

In an optional implementation, a time interval can be understood as a time period, which can be 24 hours (i.e., one day), and the preset time period can include M time periods. The server can determine the permanent cell of the first IMEI every day and the permanent cell of the second IMEI every day, and determine the number of days when the permanent cell of the first IMEI every day and the permanent cell of the second IMEI every day are the same as the trajectory similarity.

In combination with the description of the above embodiment, it should be understood that one IMEI corresponds to one SIM card at one moment. In an optional implementation, the preset time period also includes a target moment, and the target moment is the moment when the IMEI corresponding to the same SIM card changes. Specifically, before the target moment, the IMEI corresponding to the SIM is the first IMEI, and after the target moment, the IMEI corresponding to the SIM card is the second IMEI. At this time, the server can determine the resident cell corresponding to each of the multiple time intervals before the target moment in the preset time period of the first IMEI, and the resident cell corresponding to each of the multiple time intervals before the target moment in the preset time period of the second IMEI, and then determine the target value. When the target value is greater than or equal to the value threshold, the server determines that the terminal corresponding to the SIM card remains unchanged, and determines that the card slot of the SIM card has been replaced at the target moment.

Exemplarily, before the target time, the permanent cell of the first SIM card from 8:00 to 12:00 every day is A, and the permanent cell from 22:00 to 8:00 every day is B. After the target time, the permanent cell from 8:00 to 12:00 every day is A, and the permanent cell from 22:00 to 8:00 every day is B. At this time, the server can determine that the card slot of the SIM card has been changed at the target time, and determine that the first IMEI and the second IMEI belong to the same terminal.

The embodiment of the present invention can divide the functional modules of the server etc. according to the above method example. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present invention is schematic and is only a logical functional division. There may be other division methods in actual implementation.

In the case of dividing each functional module according to each function, FIG5 shows a possible structural diagram of the terminal identification device involved in the above embodiment. As shown in FIG5 , the terminal identification device 10 may include: an acquisition module 101 and a determination module 102 .

The acquisition module 101 is used to acquire signaling data of multiple terminals, where the signaling data includes multiple IMEIs and a cell corresponding to each IMEI in the multiple IMEIs at each time in multiple time periods.

The determination module 102 is used to determine the trajectory similarity between the first IMEI and the second IMEI based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI at each moment, the first IMEI is one of the multiple IMEIs, the first i characters in the second IMEI are the same as the first i characters in the first IMEI, and i is an integer greater than or equal to 1.

The determination module 102 is further configured to determine, when the trajectory similarity between the first IMEI and the second IMEI is greater than or equal to a similarity threshold, that the second IMEI belongs to a first terminal, the first terminal being a terminal corresponding to the first IMEI among the multiple terminals.

Optionally, the above-mentioned multiple moments are moments included in a preset time period, and the signaling data includes multiple cells.

The determination module 102 is specifically configured to determine a first number, where the first number is used to represent the number of times that the first IMEI and the second IMEI correspond to the same cell at the same time within the preset time period.

The determination module 102 is specifically used to determine a second number, where the second number is used to characterize the number of times that the first IMEI corresponds to the first cell at the first moment within the preset time period, and the second IMEI corresponds to the second cell at the first moment, the first moment is any one of the multiple moments, the first cell is any one of the multiple cells, and the distance between the second cell and the first cell is less than or equal to the distance threshold.

The determination module 102 is specifically configured to determine the trajectory similarity between the first IMEI and the second IMEI based on the first number and the second number.

Optionally, the above-mentioned multiple moments are moments included in a preset time period, and the signaling data includes multiple cells.

The determination module 102 is further specifically used to determine a third number, which is used to characterize the number of times that the first IMEI corresponds to the first cell at the first moment and the second IMEI corresponds to the second cell at the second moment within the preset time period, the first moment is any one of the multiple moments, the difference between the second moment and the first moment is less than or equal to the duration threshold, the first cell is any one of the multiple cells, and the distance between the second cell and the first cell is less than or equal to the distance threshold.

The determination module 102 is further configured to determine, based on the third number, a trajectory similarity between the first IMEI and the second IMEI.

Optionally, the above-mentioned multiple moments are moments included in a preset time period, and the preset time period includes M time intervals, where M is an integer greater than or equal to 2.

The determination module 102 is further specifically used to determine N time intervals based on the cell corresponding to the first IMEI at each moment and the cell corresponding to the second IMEI at each moment, the permanent cell corresponding to the first IMEI in each time interval of the N time intervals is the same as the permanent cell corresponding to the second IMEI in each time interval, and N is an integer greater than or equal to 1.

The determination module 102 is further configured to determine, based on N and M, the trajectory similarity between the first IMEI and the second IMEI.

In the case of adopting an integrated unit, FIG6 shows a possible structural diagram of the terminal identification device involved in the above embodiment. As shown in FIG6, the terminal identification device 20 may include: a processing module 201 and a communication module 202. The processing module 201 may be used to control and manage the actions of the terminal identification device 20. The communication module 202 may be used to support the communication between the terminal identification device 20 and other entities. Optionally, as shown in FIG6, the terminal identification device 20 may also include a storage module 203 for storing program code and data of the terminal identification device 20.

The processing module 201 may be a processor or a controller. The communication module 202 may be a transceiver, a transceiver circuit or a communication interface, etc. The storage module 203 may be a memory.

When the processing module 201 is a processor, the communication module 202 is a transceiver, and the storage module 203 is a memory, the processor, the transceiver, and the memory may be connected via a bus. The bus may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc.

It should be understood that in various embodiments of the present invention, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, a data center, etc. that contains one or more servers that can be integrated with a medium. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (8)

1. A terminal identification method, the method comprising:

acquiring signaling data of a plurality of terminals, wherein the signaling data comprises a plurality of international mobile equipment identification codes (IMEIs) and cells corresponding to each time in a plurality of time, each time is a time included in a preset time period, and the signaling data comprises a plurality of cells;

determining the track similarity between a first IMEI and a second IMEI based on a cell corresponding to the first IMEI at each moment and a cell corresponding to the second IMEI at each moment, wherein the first IMEI is one of the plurality of IMEIs, the first i characters in the second IMEI are the same as the first i characters in the first IMEI, and i is an integer greater than or equal to 1;

Determining that the second IMEI belongs to a first terminal under the condition that the track similarity between the first IMEI and the second IMEI is greater than or equal to a similarity threshold, wherein the first terminal is a terminal corresponding to the first IMEI in the plurality of terminals;

The determining the track similarity between the first IMEI and the second IMEI based on the cell corresponding to the first IMEI at each time and the cell corresponding to the second IMEI at each time further includes:

Determining a third quantity, wherein the third quantity is used for representing the times that the first IMEI corresponds to a first cell at a first moment in the preset time period and the second IMEI corresponds to a second cell at a second moment in the preset time period, the first moment is any one of the moments, the difference value between the second moment and the first moment is smaller than or equal to a duration threshold value, the first cell is any one of the cells, and the distance between the second cell and the first cell is smaller than or equal to a distance threshold value;

And determining the track similarity between the first IMEI and the second IMEI based on the third quantity.

2. The terminal identification method according to claim 1, wherein the plurality of time instants are time instants included in a preset time period, the signaling data includes a plurality of cells, and the determining the trajectory similarity between the first IMEI and the second IMEI based on the cell corresponding to the first IMEI at each time instant and the cell corresponding to the second IMEI at each time instant includes:

Determining a first quantity, wherein the first quantity is used for representing the times of corresponding identical cells of the first IMEI and the second IMEI at the same moment in the preset time period;

Determining a second number, wherein the second number is used for representing the number of times that the first IMEI corresponds to a first cell at a first time within the preset time period and the second IMEI corresponds to a second cell at the first time, the first time is any one of the multiple times, the first cell is any one of the multiple cells, and the distance between the second cell and the first cell is less than or equal to a distance threshold;

And determining the track similarity between the first IMEI and the second IMEI based on the first quantity and the second quantity.

3. The terminal identification method according to claim 1, wherein the plurality of time instants are time instants included in a preset time period, the preset time period includes M time intervals, M is an integer greater than or equal to 2, and the determining the trajectory similarity between the first IMEI and the second IMEI based on the cell corresponding to the first IMEI at each time instant and the cell corresponding to the second IMEI at each time instant includes:

Determining N time intervals based on a cell corresponding to a first IMEI at each time and a cell corresponding to a second IMEI at each time, wherein a resident cell corresponding to each time interval in the N time intervals is the same as a resident cell corresponding to the second IMEI at each time interval, and N is an integer greater than or equal to 1;

And determining the track similarity between the first IMEI and the second IMEI based on N and M.

4. A terminal identification device, characterized by comprising: an acquisition module and a determination module;

the acquisition module is configured to acquire signaling data of a plurality of terminals, where the signaling data includes a plurality of international mobile equipment identifiers IMEIs, and cells corresponding to each of a plurality of IMEIs at each of a plurality of moments, where the plurality of moments are moments included in a preset time period, and the signaling data includes a plurality of cells;

The determining module is configured to determine a track similarity between a first IMEI and a second IMEI based on a cell corresponding to the first IMEI at each time and a cell corresponding to the second IMEI at each time, where the first IMEI is one of the plurality of IMEIs, a first i character in the second IMEI is the same as a first i character in the first IMEI, and i is an integer greater than or equal to 1;

the determining module is further configured to determine that the second IMEI belongs to a first terminal when a track similarity between the first IMEI and the second IMEI is greater than or equal to a similarity threshold, where the first terminal is a terminal corresponding to the first IMEI among the plurality of terminals;

The determining module is specifically configured to determine a third number, where the third number is used to characterize that, in the preset time period, the first IMEI corresponds to a first cell at a first time, and the second IMEI corresponds to a number of times of a second cell at a second time, where the first time is any one of the multiple times, a difference between the second time and the first time is less than or equal to a duration threshold, the first cell is any one of the multiple cells, and a distance between the second cell and the first cell is less than or equal to a distance threshold;

The determining module is specifically further configured to determine a trajectory similarity between the first IMEI and the second IMEI based on the third number.

5. The terminal identification device according to claim 4, wherein the plurality of time instants are time instants included in a preset time period, and the signaling data includes a plurality of cells;

The determining module is specifically configured to determine a first number, where the first number is used to characterize a number of times that the first IMEI and the second IMEI correspond to the same cell at the same time in the preset time period;

The determining module is specifically configured to determine a second number, where the second number is used to characterize a number of times that the first IMEI corresponds to a first cell at a first time and the second IMEI corresponds to a second cell at the first time within the preset time period, the first time is any one of the multiple times, the first cell is any one of the multiple cells, and a distance between the second cell and the first cell is less than or equal to a distance threshold;

the determining module is specifically configured to determine a trajectory similarity between the first IMEI and the second IMEI based on the first number and the second number.

6. The terminal identification device according to claim 4 or 5, wherein the plurality of time instants are time instants included in a preset time period, the preset time period includes M time intervals, and M is an integer greater than or equal to 2;

The determining module is specifically further configured to determine N time intervals based on a cell corresponding to a first IMEI at each time and a cell corresponding to a second IMEI at each time, where a resident cell corresponding to each time interval of the first IMEI in the N time intervals is the same as a resident cell corresponding to the second IMEI in each time interval, and N is an integer greater than or equal to 1;

the determining module is specifically further configured to determine a track similarity between the first IMEI and the second IMEI based on N and M.

7. A server, the server comprising:

A processor;

a memory configured to store the processor-executable instructions;

wherein the processor is configured to execute the instructions to implement the terminal identification method of any of claims 1-3.

8. A computer readable storage medium having instructions stored thereon, which, when executed by a server, enable the server to perform the terminal identification method according to any of claims 1-3.