CN111371878A - Information publishing method, ISCS (Internet service System), PIS (particle information System) and device - Google Patents
Information publishing method, ISCS (Internet service System), PIS (particle information System) and device Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0016—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy involving special memory structures, e.g. look-up tables
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H04L2012/40228—Modbus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40293—Bus for use in transportation systems the transportation system being a train
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention provides an information issuing method, an ISCS, a PIS and a device, wherein the method comprises the following steps: the ISCS acquires predefined information to be issued; the ISCS determines the number of the information to be issued corresponding to the information to be issued by using a first information table stored in the ISCS; the ISCS sends the number of the information to be issued to the PIS, the PIS determines the information to be issued according to the number of the information to be issued and a second information table stored by the PIS, the PIS issues the information to be issued, and the contents of the first information table and the second information table are consistent. In the scheme, the ISCS and the PIS store information tables with consistent contents, when the information is released, the ISCS sends the number of the information to be released indicating the predefined information to be released to the PIS, and the PIS determines and releases the predefined information to be released according to the number of the information to be released. The ISCS transmits information to the PIS through the serial number, so that the information transmission efficiency, the reliability and the transmission safety are improved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an information publishing method, an ISCS (Internet service System), a PIS (peer-to-peer server) and a device.
Background
In the actual operation of urban rail transit, various types of information are provided to passengers through a Passenger Information System (PIS), and the information provided to the passengers by the PIS is provided by an Integrated Supervisory and Control System (ISCS).
The ISCS sends the information to be issued to the PIS by using the function code 16 of the Modbus TCP protocol, and then the PIS issues the information to the passenger. On the one hand, the function code 16 of the Modbus TCP protocol can only transmit 120 words of information at a time, and when the information to be issued exceeds 120 words, the ISCS and the PIS need to be interacted for many times, so that the information transmission efficiency and the reliability are low. On the other hand, the information transmitted between the ISCS and the PIS is plaintext transmission, and the transmission security is low.
Disclosure of Invention
In view of this, embodiments of the present invention provide an information publishing method, an ISCS, a PIS, and an apparatus, so as to solve the problems of low information transmission efficiency, low reliability, low transmission security, and the like in the existing information transmission manners of the ISCS and the PIS.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
the first aspect of the embodiments of the present invention discloses an information publishing method, which is applied to an ISCS, and the method includes:
acquiring predefined information to be issued;
determining a number of information to be issued corresponding to the information to be issued by using a first information table stored in an ISCS (Internet Small computer System interface), wherein the first information table comprises a corresponding relation between the information and the number of the information;
and sending the information number to be issued to a PIS (peer to peer system), so that the PIS determines the information to be issued according to the information number to be issued and a second information table stored by the PIS, and the PIS issues the information to be issued, wherein the contents of the first information table and the second information table are consistent.
Preferably, the method further comprises:
acquiring updating information and an information number corresponding to the updating information;
and updating the first information table by using the updating information and the information number corresponding to the updating information.
Preferably, after the updating of the first information table, the method further includes:
sending an update instruction carrying the update information and an information number corresponding to the update information to the PIS, so that the PIS updates the second information table;
and receiving a response instruction fed back by the PIS, and returning to the step of sending the updating instruction.
The second aspect of the embodiment of the invention discloses an information issuing method, which is applied to PIS and comprises the following steps:
receiving a number of information to be issued sent by an ISCS (Internet service computer system), wherein the number of the information to be issued is determined by the ISCS according to predefined information to be issued and a first information table stored by the ISCS, and the first information table comprises a corresponding relation between information and information numbers;
determining the information to be issued according to the information number to be issued and a second information table stored in the PIS, wherein the contents of the first information table and the second information table are consistent;
and issuing the information to be issued.
Preferably, the method further comprises:
receiving an update instruction which is sent by the ISCS and carries the update information and an information number corresponding to the update information;
updating the second information table according to the updating information and the information number corresponding to the updating information;
and feeding back a response instruction to the ISCS.
A third aspect of an embodiment of the present invention discloses an ISCS, including:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring predefined information to be issued;
the device comprises a determining unit, a processing unit and a processing unit, wherein the determining unit is used for determining the number of information to be issued corresponding to the information to be issued by utilizing a first information table stored in an ISCS (Internet Small computer System interface), and the first information table comprises the corresponding relation between the information and the information number;
and the sending unit is used for sending the information number to be issued to a PIS (peer to peer system), so that the PIS determines the information to be issued according to the information number to be issued and a second information table stored by the PIS, and the PIS issues the information to be issued, wherein the contents of the first information table and the second information table are consistent.
Preferably, the method further comprises the following steps:
and the updating unit is used for acquiring the updating information and the information number corresponding to the updating information and updating the first information table by using the updating information and the information number corresponding to the updating information.
Preferably, the method further comprises the following steps:
an update instruction sending unit, configured to send an update instruction carrying the update information and an information number corresponding to the update information to the PIS, so that the PIS updates the second information table;
and the receiving unit is used for receiving the response instruction fed back by the PIS and returning to execute the updating instruction sending unit.
A fourth aspect of the embodiments of the present invention discloses a PIS, including:
the receiving unit is used for receiving a number of information to be issued sent by the ISCS, wherein the number of the information to be issued is determined by the ISCS according to predefined information to be issued and a first information table stored by the ISCS, and the first information table comprises a corresponding relation between information and the number of the information;
the determining unit is used for determining the information to be issued according to the information number to be issued and a second information table stored in the PIS, and the contents of the first information table and the second information table are consistent;
and the issuing unit is used for issuing the information to be issued.
A fifth aspect of the embodiments of the present invention discloses an information distribution apparatus, including: an ISCS disclosed in a third aspect of the embodiments of the present invention and a PIS disclosed in a fourth aspect of the embodiments of the present invention.
Based on the information issuing method, the ISCS, the PIS and the device provided by the embodiment of the invention, the method comprises the following steps: the ISCS acquires predefined information to be issued; the ISCS determines the number of the information to be issued corresponding to the information to be issued by using a first information table stored in the ISCS; the ISCS sends the number of the information to be issued to the PIS, the PIS determines the information to be issued according to the number of the information to be issued and a second information table stored by the PIS, the PIS issues the information to be issued, and the contents of the first information table and the second information table are consistent. In the scheme, the ISCS and the PIS store information tables with consistent contents, when the information is released, the ISCS sends the number of the information to be released indicating the predefined information to be released to the PIS, and the PIS determines and releases the predefined information to be released according to the number of the information to be released. The ISCS transmits information to the PIS through the number, each message can carry a plurality of numbers, information issued to the PIS by the ISCS each time is not limited to 120 words any more, information transmission efficiency and reliability are improved, meanwhile, a third party cannot learn the meaning of the number, and transmission safety is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of an information publishing method according to an embodiment of the present invention;
FIG. 2 is a flow chart of an update information table according to an embodiment of the present invention;
fig. 3 is a block diagram of an ISCS according to an embodiment of the present invention;
fig. 4 is a block diagram of a structure of a PIS according to an embodiment of the present invention;
fig. 5 is a block diagram of an information distribution apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
As known in the art, when an Integrated Supervisory and Control System (ISCS) of urban rail transit transmits Information to a Passenger Information System (PIS), a function code 16 of the Modbus TCP protocol is used. However, the function code 16 of the Modbus TCP protocol can only transmit 120 words of information at most each time, and when the information to be issued exceeds 120 words, the ISCS and the PIS need to be interacted for many times, so that the information transmission efficiency and the reliability are low, and the information transmitted between the ISCS and the PIS is plaintext transmission, so that the transmission security is low.
Therefore, an embodiment of the present invention provides an information publishing method, an ISCS, a PIS, and a device, where the ISCS and the PIS store information tables with consistent contents, and when publishing information, the ISCS sends an information number to be published indicating predefined information to be published to the PIS. The ISCS transmits information to the PIS through the number, each message can carry a plurality of numbers, information issued to the PIS by the ISCS each time is no longer limited to 120 words, and meanwhile, a third party cannot obtain the meaning of the number, so that the information transmission efficiency, the reliability and the transmission safety are improved.
In an embodiment of the invention, the ISCS and the PIS communicate via Modbus TCP protocol. It can be understood that the ISCS and the PIS may also communicate through an http Protocol, or communicate through a Protocol in which an application layer message based on a Transmission Control Protocol (TCP) is a text structure, and a communication method between the ISCS and the PIS is not specifically limited herein.
In the Modbus TCP protocol, the ISCS transmits a message to the PIS using the function code 16, and includes a maximum of 123 registers. A plurality of registers are usually reserved in 123 registers as function fields, and taking station PIS as an example, 3 registers are usually reserved as function fields, and the function fields at least include the following information: priority bit-normal/urgent, 0 for normal, 1 for urgent, priority issue of urgent PIS information. And selecting the area bit, wherein each station is divided into a plurality of areas, 1 represents a selected area, and 0 represents an unselected area.
It can be understood that if 3 registers are reserved as the functional fields, 120 registers are left in each message except the functional fields, and one register is occupied by one Chinese character. That is, the ISCS message sent to the PIS by using the function code 16 contains 120 chinese characters at most.
Referring to fig. 1, a flowchart of an information publishing method provided by an embodiment of the present invention is shown, where the information publishing method includes the following steps:
step S101: the ISCS acquires predefined information to be issued.
It should be noted that, in the actual operation process of the urban rail transit, some information may be periodically or frequently issued, and the periodically or frequently issued information is numbered, that is, the periodically or frequently issued information is predefined information.
Similarly, in the actual operation process of urban rail transit, some information needs to be temporarily edited and issued, and the temporarily edited and issued information is custom information.
It should be noted that, when the ISCS sends the custom information to the PIS, the ISCS directly puts the custom information into the message corresponding to the function code 16, and transmits the message to the PIS. Before the ISCS transmits the message containing the custom information to the PIS, whether the message is encrypted or not can be determined according to actual conditions.
In the process of implementing step S101 specifically, the ISCS acquires predefined information to be published, that is, the information to be published is the aforementioned predefined information.
Step S102: and the ISCS determines the number of the information to be issued corresponding to the information to be issued by using the first information table stored in the ISCS.
It should be noted that each piece of predefined information is numbered in advance to obtain an information table containing a correspondence between information numbers and predefined information, that is, each information number in the information table corresponds to one piece of predefined information.
The information tables are respectively stored in the ISCS and the PIS, the information table stored in the ISCS is called a first information table, the information table stored in the PIS is called a second information table, and the contents of the first information table and the second information table are consistent.
And the ISCS reads the first information table from the local disk or the remote end and loads the first information table into a local disk cache or an internal memory of the ISCS.
And the PIS reads the second information table from the local disk or the remote end and loads the second information table into a local disk cache or an internal memory of the PIS.
In order to better explain the contents in the information table, the information table is illustrated by table 1, and it should be noted that the contents in table 1 are only for illustration.
Table 1:
| information numbering | Information content (no more than 120 words) |
| 1 | Do not play on platform |
| 2 | Yellow line for asking not to cross platform |
| 3 | Please note the platform gap |
| 4 | Escalator for emergency |
| 5 | D, temporarily closing the outlet and asking passengers to pass through the port A, B, C |
| …. | …… |
In table 1, the information appearing periodically or frequently is numbered, and the content in table 1 is obtained, that is, each information number corresponds to a piece of predefined information.
In the process of implementing step S102 specifically, the ISCS determines, by using the first information table, the number of the information to be distributed corresponding to the information to be distributed. For example: in combination with the contents in table 1, it is assumed that the predefined information to be released obtained by the ISCS is "do not play on the platform", and the ISCS can determine that the number of the information to be released corresponding to the information to be released is "1" according to table 1.
Step S103: and the ISCS sends the information number to be issued to the PIS.
In the process of implementing step S103 specifically, the ISCS puts the number of the information to be issued into the message corresponding to the function code 16, and sends the message to the PIS.
It should be noted that 1 to-be-issued information number only occupies 1 or half of the registers in the message. In practical applications, the functional field in the message usually reserves a space, and therefore, the information number to be issued may use a certain or half register of the functional field in the message. When the reserved space of the function field in the message is insufficient, a register can be expanded to store the information number to be issued.
It should be further noted that 1 register is 16 bits, and the corresponding decimal value ranges from 0 to 65535. Half of the registers correspond to 8 bits, corresponding to a decimal value ranging from 0 to 255. When the number of the information to be issued occupies 1 register, the corresponding number value is 0 to 65535, and when the number of the information to be issued occupies half of the register, the corresponding number value is 0 to 255.
In one implementation, the ISCS may obtain a plurality of pieces (1 piece or more than 1 piece) of predefined information to be published, and determine an information number to be published of each piece of information to be published. And the ISCS puts a plurality of information numbers to be issued into the message corresponding to the function code 16, and sends the message to the PIS. That is, the message sent by the ISCS to the PIS may carry 1 to-be-issued information number, and may also carry more than 1 to-be-issued information number.
It can be understood that, as can be seen from the above, in the message containing the information to be issued, which is sent by the ISCS to the PIS by using the function code 16, only a small number of registers are used, for example, only 3 registers of the function field may be used, and the content in the message is greatly compressed, thereby improving the transmission efficiency of the message.
Meanwhile, the ISCS sends the messages containing a plurality of serial numbers of the information to be issued to the PIS, so that a large amount of information can be transmitted in 1 message, the ISCS is not limited to only transmitting 120 words in each message, the interaction between the ISCS and the PIS is reduced, and the reliability of information transmission is improved.
Even if the third party intercepts the message sent by the ISCS to the PIS, the third party can only acquire the number with unknown meaning, namely the third party cannot determine the actual content in the message sent by the ISCS to the PIS, and the safety of message transmission is improved.
Step S104: and the PIS determines the information to be issued according to the number of the information to be issued and a second information table stored in the PIS.
As can be seen from the foregoing, the contents of the information tables stored in the PIS and the ISCS are identical, that is, the contents of the first information table and the second information table are identical. In the process of implementing step S104 specifically, after receiving the message containing the number of the information to be issued sent by the ISCS, the PIS determines the information to be issued corresponding to the number of the information to be issued according to the second information table stored by the PIS.
Step S105: and the PIS issues the information to be issued.
In the process of implementing the step S105 specifically, after the PIS determines the information to be published corresponding to the information number to be published, the PIS displays the text content corresponding to the information to be published on the PIS screen, and publishes the information to be published.
In the embodiment of the invention, the ISCS and the PIS store information tables with consistent contents, and when the information is released, the ISCS determines the number of the information to be released corresponding to the information to be released by using the first information table stored in the ISCS, and sends the number of the information to be released to the PIS. And the PIS determines the predefined information to be issued corresponding to the information number to be issued according to a second information table stored in the PIS, and issues the information to be issued. The ISCS transmits information to the PIS through the number, each message can carry a plurality of numbers, information issued to the PIS by the ISCS each time is not limited to 120 words any more, information transmission efficiency and reliability are improved, meanwhile, a third party cannot learn the meaning of the number, and transmission safety is improved.
Preferably, to prevent the information tables stored in the ISCS and the PIS from leaking, the information tables in the ISCS and the PIS may be periodically updated, for example, once every 30 days. When the information table is updated, the information number in the information table may be scrambled, the information in the information table may be increased or decreased, or the information in the information table may be modified, and the manner of updating the information table is not particularly limited.
When the information tables in the ISCS and the PIS need to be updated, in order to further ensure the operation safety of the ISCS and the PIS, the information tables can be updated by clicking an interface button by an ISCS operator. The contents of the specific update information table are described in detail below.
Referring to fig. 2, a flowchart of updating an information table according to an embodiment of the present invention is shown, which includes the following steps:
step S201: and the ISCS acquires the update information and the information number corresponding to the update information.
In the process of implementing step S201 specifically, the ISCS acquires a plurality of pieces of update information, and acquires an information number corresponding to each piece of update information.
Step S202: and the ISCS updates the first information table by using the update information and the information number corresponding to the update information.
In the process of implementing step S202, the ISCS updates the first information table stored in itself by using each piece of update information and the information number corresponding to the update information.
Step S203: and the ISCS sends an updating instruction carrying the updating information and the information number corresponding to the updating information to the PIS.
In the process of implementing step S203 specifically, the ISCS sends, to the PIS, a message carrying the update information and the information number corresponding to the update information by using the function code 16, that is, the message carrying the update information and the information number corresponding to the update information is referred to as an update instruction.
It should be noted that, according to the content in fig. 1 in the embodiment of the present invention, the ISCS sends the message carrying the number of the message to be published to the PIS through the function code 16, so that the PIS publishes the message to be published. In the process of updating the second information table of the PIS, the ISCS may also send a message (update instruction) carrying the update information and the information number corresponding to the update information to the PIS by the function code 16.
It should be further noted that, by setting the start address of the packet sent by the ISCS, the packet may be set as an instruction for instructing the PIS to issue the information to be issued, or the packet may be set as an instruction for instructing the PIS to update the second information table.
That is to say, when the PIS receives a message sent by the ISCS, the PIS determines, according to the initial address of the message, that the message instructs the PIS to issue information to be issued according to the content carried by the message, or determines that the message instructs the PIS to update the second information table according to the content carried by the message.
It can be understood that, according to the sequence of the information numbers of the updated first information table, the ISCS sequentially sends messages carrying the update information and the information numbers corresponding to the update information to the PIS. The ISCS sends a message carrying the update information and the information number corresponding to the update information to the PIS each time, the message can carry one piece of update information and the information number corresponding to the update information, and can also carry a plurality of pieces of update information and the information number corresponding to each piece of update information.
And after the ISCS sends a message carrying the updating information and the information number corresponding to the updating information to the PIS every time, the PIS updates the second information table according to the updating information carried by the message and the information number corresponding to the updating information, and the PIS feeds back a response instruction to the ISCS. And after receiving the response instruction of the PIS, the ISCS sends the next message carrying the updating information and the information number corresponding to the updating information to the PIS.
Through the above manner, the ISCS sends all the update information and the information numbers corresponding to the update information to the PIS, so that the PIS updates the second information table, that is, the contents of the updated first information table and the updated second information table are kept consistent.
Step S204: and the PIS updates the second information table according to the updating information and the information number corresponding to the updating information.
In the process of implementing step S204 specifically, after receiving the message (update instruction) carrying the update information and the information number corresponding to the update information, the PIS determines that the message indicates the PIS to update the second information table according to the initial address of the message. And the PIS updates the second information table by using the updating information carried by the message and the information number corresponding to the updating information.
Step S205: the PIS feeds back a response instruction to the ISCS.
In the process of specifically implementing step S205, after the PIS updates the second information table, a response instruction is fed back to the ISCS, so that the ISCS sends the next message carrying the update information and the information number corresponding to the update information to the PIS, that is, the process returns to execute step S203.
According to the contents involved in the above steps S201 to S205, the PIS sends the update information and the information number corresponding to the update information by the ISCS in the process of updating the second information table.
Preferably, the PIS and the ISCS can also acquire the update information and the information number corresponding to the update information from the cloud or the remote server separately. That is, the ISCS separately obtains the update information and the information number corresponding to the update information from the cloud or the remote server, and updates the first information table. And the PIS independently acquires the updating information and the information number corresponding to the updating information from the cloud or the remote server, and independently updates the second information table.
It can be understood that, when the PIS independently updates the second information table, it needs to ensure that the update information acquired by both the PIS and the ISCS is consistent with the information number corresponding to the update information, that is, it needs to ensure that the contents of the updated first information table and the updated second information table are consistent.
In the embodiment of the invention, the ISCS updates the first information table by using the updating information and the information number corresponding to the updating information, and the PIS updates the second information table by using the updating information and the information number corresponding to the updating information. Information leakage caused by information table leakage stored in the ISCS and the PIS is prevented, and the information transmission safety between the PIS and the ISCS is further improved.
Corresponding to the information publishing method provided by the embodiment of the present invention, referring to fig. 3, the embodiment of the present invention further provides a structural block diagram of an ISCS, where the ISCS includes: an acquisition unit 301, a determination unit 302, and a transmission unit 303;
an obtaining unit 301, configured to obtain predefined information to be issued.
The determining unit 302 is configured to determine, by using a first information table stored in the ISCS, an information number to be published corresponding to the information to be published, where the first information table includes a correspondence between the information and the information number.
And the sending unit 303 is configured to send the number of the information to be published to the PIS, so that the PIS determines the information to be published according to the number of the information to be published and a second information table stored in the PIS, and the PIS publishes the information to be published, where the contents of the first information table and the second information table are consistent.
In the embodiment of the invention, when information is released, the ISCS determines the number of the information to be released corresponding to the information to be released by using the first information table stored in the ISCS, and sends the number of the information to be released to the PIS, so that the PIS determines the predefined information to be released corresponding to the number of the information to be released according to the second information table stored in the PIS, and the PIS releases the information to be released. The ISCS transmits information to the PIS through the number, each message can carry a plurality of numbers, information issued to the PIS by the ISCS each time is not limited to 120 words any more, information transmission efficiency and reliability are improved, meanwhile, a third party cannot learn the meaning of the number, and transmission safety is improved.
Preferably, in conjunction with the content shown in fig. 3, the ISCS further includes:
and the updating unit is used for acquiring the updating information and the information number corresponding to the updating information and updating the first information table by using the updating information and the information number corresponding to the updating information.
Preferably, in conjunction with the content shown in fig. 3, the ISCS further includes:
and the updating instruction sending unit is used for sending an updating instruction carrying the updating information and the information number corresponding to the updating information to the PIS so that the PIS updates the second information table.
And the receiving unit is used for receiving the response instruction fed back by the PIS and returning to the updating instruction execution sending unit.
In the embodiment of the invention, the ISCS updates the first information table according to the updating information and the information number corresponding to the updating information, and sends an updating instruction carrying the updating information and the information number corresponding to the updating information to the PIS, so that the PIS updates the second information table, information leakage caused by information leakage stored in the ISCS and the PIS is prevented, and the transmission safety of the information between the PIS and the ISCS is further improved.
Corresponding to the information publishing method provided by the embodiment of the present invention, referring to fig. 4, an embodiment of the present invention further provides a structural block diagram of a PIS, where the PIS includes: a receiving unit 401, a determining unit 402 and a publishing unit 403;
the receiving unit 401 is configured to receive a number of information to be published sent by the ISCS, where the number of the information to be published is determined by the ISCS according to the information to be published and a first information table stored in the ISCS, and the first information table includes a correspondence between information and an information number.
And the determining unit 402 is configured to determine the information to be published according to the number of the information to be published and the second information table stored in the PIS, where the contents of the first information table and the second information table are consistent.
The issuing unit 403 is configured to issue information to be issued.
In the embodiment of the invention, the PIS receives the number of the information to be issued corresponding to the information to be issued sent by the ISCS, and the PIS determines the predefined information to be issued corresponding to the number of the information to be issued according to the second information table stored in the PIS and issues the information to be issued. The ISCS transmits information to the PIS through the number, each message can carry a plurality of numbers, information issued to the PIS by the ISCS each time is not limited to 120 words any more, information transmission efficiency and reliability are improved, meanwhile, a third party cannot learn the meaning of the number, and transmission safety is improved.
Preferably, in combination with the content shown in fig. 4, the PIS further includes:
and the updating instruction receiving unit is used for receiving the updating instruction which is sent by the ISCS and carries the updating information and the information number corresponding to the updating information.
And the updating unit is used for updating the second information table according to the updating information and the information number corresponding to the updating information, and feeding back a response instruction to the ISCS.
In the embodiment of the invention, the PIS updates the second information table according to the update instruction which is sent by the ISCS and carries the update information and the information number corresponding to the update information, so that the information leakage caused by the leakage of the information tables stored in the ISCS and the PIS is prevented, and the transmission safety of the information between the PIS and the ISCS is further improved.
Corresponding to the information publishing method provided by the above embodiment of the present invention, referring to fig. 5, an embodiment of the present invention further provides a structural block diagram of an information publishing device, where the information publishing device includes: ISCS501 and PIS 502.
The details of the ISCS501 can be found in the disclosure of fig. 3 in the above embodiment of the present invention, and the details of the PIS502 can be found in the disclosure of fig. 4 in the above embodiment of the present invention.
In summary, an embodiment of the present invention provides an information publishing method, an ISCS, a PIS, and an apparatus, where the method includes: the ISCS acquires predefined information to be issued; the ISCS determines the number of the information to be issued corresponding to the information to be issued by using a first information table stored in the ISCS; the ISCS sends the number of the information to be issued to the PIS, the PIS determines the information to be issued according to the number of the information to be issued and a second information table stored by the PIS, the PIS issues the information to be issued, and the contents of the first information table and the second information table are consistent. In the scheme, the ISCS and the PIS store information tables with consistent contents, when the information is released, the ISCS sends the number of the information to be released indicating the predefined information to be released to the PIS, and the PIS determines and releases the predefined information to be released according to the number of the information to be released. The ISCS transmits information to the PIS through the number, each message can carry a plurality of numbers, information issued to the PIS by the ISCS each time is not limited to 120 words any more, information transmission efficiency and reliability are improved, meanwhile, a third party cannot learn the meaning of the number, and transmission safety is improved.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An information issuing method is applied to an integrated urban rail transit monitoring system (ISCS), and comprises the following steps:
acquiring predefined information to be issued;
determining a number of information to be issued corresponding to the information to be issued by using a first information table stored in an ISCS (Internet Small computer System interface), wherein the first information table comprises a corresponding relation between the information and the number of the information;
and sending the information number to be issued to a passenger information system PIS, enabling the PIS to determine the information to be issued according to the information number to be issued and a second information table stored by the PIS, and enabling the PIS to issue the information to be issued, wherein the contents of the first information table and the second information table are consistent.
2. The method of claim 1, further comprising:
acquiring updating information and an information number corresponding to the updating information;
and updating the first information table by using the updating information and the information number corresponding to the updating information.
3. The method of claim 2, wherein after updating the first information table, further comprising:
sending an update instruction carrying the update information and an information number corresponding to the update information to the PIS, so that the PIS updates the second information table;
and receiving a response instruction fed back by the PIS, and returning to the step of sending the updating instruction.
4. An information distribution method applied to a Passenger Information System (PIS), the method comprising:
receiving a number of information to be issued sent by an urban rail transit integrated monitoring system (ISCS), wherein the number of the information to be issued is determined by the ISCS according to predefined information to be issued and a first information table stored by the ISCS, and the first information table comprises a corresponding relation between information and information numbers;
determining the information to be issued according to the information number to be issued and a second information table stored in the PIS, wherein the contents of the first information table and the second information table are consistent;
and issuing the information to be issued.
5. The method of claim 4, further comprising:
receiving an update instruction which is sent by the ISCS and carries the update information and an information number corresponding to the update information;
updating the second information table according to the updating information and the information number corresponding to the updating information;
and feeding back a response instruction to the ISCS.
6. An ISCS, comprising:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring predefined information to be issued;
the device comprises a determining unit, a processing unit and a processing unit, wherein the determining unit is used for determining the number of information to be issued corresponding to the information to be issued by utilizing a first information table stored in an ISCS (Internet Small computer System interface), and the first information table comprises the corresponding relation between the information and the information number;
and the sending unit is used for sending the information number to be issued to a passenger information system PIS, so that the PIS determines the information to be issued according to the information number to be issued and a second information table stored by the PIS, and the PIS issues the information to be issued, wherein the contents of the first information table and the second information table are consistent.
7. The ISCS of claim 6, further comprising:
and the updating unit is used for acquiring the updating information and the information number corresponding to the updating information and updating the first information table by using the updating information and the information number corresponding to the updating information.
8. The ISCS of claim 6, further comprising:
an update instruction sending unit, configured to send an update instruction carrying the update information and an information number corresponding to the update information to the PIS, so that the PIS updates the second information table;
and the receiving unit is used for receiving the response instruction fed back by the PIS and returning to execute the updating instruction sending unit.
9. A PIS, characterized in that the PIS comprises:
the receiving unit is used for receiving a number of information to be issued sent by an urban rail transit integrated monitoring system (ISCS), wherein the number of the information to be issued is determined by the ISCS according to predefined information to be issued and a first information table stored by the ISCS, and the first information table comprises a corresponding relation between information and information numbers;
the determining unit is used for determining the information to be issued according to the information number to be issued and a second information table stored in the PIS, and the contents of the first information table and the second information table are consistent;
and the issuing unit is used for issuing the information to be issued.
10. An information distribution apparatus, characterized in that the apparatus comprises: the ISCS of any of claims 6 to 8 and the PIS of claim 9.
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