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WO2019041104A1 - Interface de communication et procédé de communication - Google Patents

Interface de communication et procédé de communication Download PDF

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Publication number
WO2019041104A1
WO2019041104A1 PCT/CN2017/099350 CN2017099350W WO2019041104A1 WO 2019041104 A1 WO2019041104 A1 WO 2019041104A1 CN 2017099350 W CN2017099350 W CN 2017099350W WO 2019041104 A1 WO2019041104 A1 WO 2019041104A1
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WO
WIPO (PCT)
Prior art keywords
module
field
data
communication
function module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/099350
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English (en)
Chinese (zh)
Inventor
朱小军
周红春
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Laibu Technology Co Ltd
Original Assignee
Hangzhou Laibu Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Laibu Technology Co Ltd filed Critical Hangzhou Laibu Technology Co Ltd
Priority to PCT/CN2017/099350 priority Critical patent/WO2019041104A1/fr
Publication of WO2019041104A1 publication Critical patent/WO2019041104A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones

Definitions

  • the present invention relates to the field of intelligent terminal communication, and more particularly to a communication interface and a communication method.
  • Intelligent terminals have a wide range of applications in people's daily lives, and they also have more and more functions. For example, smart phones, smart watches, smart glasses, etc., greatly facilitate people's production and life. However, limited to volume, cost, and standardized production, current smart terminals have been limited in hardware structure at the factory, thereby limiting their functions, resulting in limited functionality, and cannot be extended, failing to meet the user's functional expansion requirements and individual needs.
  • the existing intelligent terminal expands the function of the intelligent terminal through the external function module of the interface.
  • a smartphone connects to a bank card swipe device via a USB interface.
  • this method has certain limitations, the number of functional modules that can be connected is limited, and the types of functional modules connected are also limited, which cannot meet the needs of people.
  • the aesthetics are poor after connection, which makes the operation of the intelligent terminal inconvenient.
  • the technical problem to be solved by the present invention is to provide a communication interface and a communication method for the defects of the prior art smart terminal having limited functions and inconvenient expansion interfaces.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: constructing a communication interface, wherein the communication interface is used for connection and communication between a function module and a module platform, and the communication interface is transmitted through a preset data frame.
  • Data the preset data frame includes: a preamble field, a command code field, a sequence number field, a data length field, a data content field, a check code field, where
  • the preamble field is a synchronization header, which is used to indicate a flow direction of the data stream
  • the command code field is a communication command between the function module and the module platform
  • the serial number field is an automatically generated serial number, and the corresponding reply command uses the same serial number;
  • the data content field is a transmission data content;
  • the data length field is a length of the transmitted data content
  • the check code field is used to verify the preset data frame.
  • the communication interface of the present invention includes: a first interface disposed on the function module and a second interface disposed on the module platform, the first interface and The second interfaces are matched;
  • the first interface and the second interface are 8-pin interfaces, including: a first pin VIN, a second pin DET0, a third pin DET1, a fourth bow I foot VOUT, and a fifth bow I GND, sixth pin DM, seventh pin DP, eighth pin GND;
  • the first pin VIN is used for power access of the function module
  • the second bow I foot DET0 and the third pin DET1 are used to classify the function module
  • the fourth pin VOUT is used for a power output of the function module
  • the sixth bow DM and the seventh DP DP are used to transmit data content.
  • the eight pins of the first interface and the second interface are distributed in two rows, four pins in each row, and the pins in each row are equally spaced. Or the eight pins of the first interface and the second interface are distributed in a row;
  • the function module is an empty module or an idle module, and no signal enters or outputs;
  • the function module is a first type of power supply module, and the first type of power supply module needs to supply power to the module platform;
  • the function module is a second type of power supply module, and the second type power supply module needs to supply power to the module platform;
  • the fourth category the function module is a battery or a charging device.
  • the present invention further provides a communication method between a function module and a module frame.
  • the function module uses the above communication interface to connect a module frame, where the module frame is used to connect an intelligent terminal, and the communication protocol used by the communication interface includes : Tuen Mun Agreement, Module Control Protocol, Data Exchange Protocol; [0026]
  • the trick protocol is used for discovery detection of a function module; the module control protocol is used to set a configuration of the function module and a type of adjustment of the function; and the data exchange protocol is used for downloading and uploading data.
  • the function module and the module frame communication method of the present invention the communication between the function module and the module frame includes:
  • S2 after the module framework identifies the type of the functional module, performing power supply and/or connection operations for the functional module;
  • S4 The module framework establishes a communication connection with the function module according to the trick protocol.
  • the communication interface transmits data through a preset data frame, in the preset data frame: a preamble field, a command code field, a sequence number field
  • the data length field and the check code field have a data length of 1 byte, and the data content field has a data length of N bytes, and N is a natural number;
  • the check code field is verified by a BCC check mode.
  • the functional module and the module framework communication method of the present invention are provided with at least one slot for installing the functional module, and the functional module passes one or more of the plugs.
  • a slot is coupled to the module frame.
  • the present invention further provides a communication method between a module framework and an intelligent terminal, using the above communication interface, the smart terminal is installed with a management APP for managing the module framework and the function module;
  • the smart terminal communicates with a module framework, and the module framework communicates with the function module through the communication interface.
  • the communication interface transmits data through a preset data frame, in the preset data frame: a preamble field, a command code field, a serial number
  • the data length of the field, the data length field, and the check code field is 4 bytes, and the data length of the data content field is N bytes, and N is a natural number;
  • the check code field is verified by a CRC check mode.
  • the command code field includes a connection request command field in which the smart terminal initiates a connection to the module framework, a break connection command field in which the smart terminal initiates a disconnection connection to the module frame, and a preset interval issued by the module frame interval Synchronization command field;
  • the smart terminal includes: a smart phone, a smart bracelet, and smart glasses;
  • the smart terminal uses an Android operating system, an IOS operating system, a Windows operating system, and a Linux operating system.
  • a communication interface and communication method embodying the present invention has the following beneficial effects:
  • the communication interface includes: a first interface disposed on the function module and a second interface disposed on the module platform, the first interface and the The two interfaces are matched, and the first interface and the second interface are 8-pin interfaces.
  • the communication interface is used for connection and communication between the function module and the module platform, and the communication interface transmits data through a preset data frame, and the preset data frame includes: a preamble field, a command code field, a sequence number field, a data length field, and a data content. Field, check code field.
  • FIG. 1 is a schematic structural diagram of a communication interface communication function module and a module platform according to the present invention
  • 2a and 2b are pin diagrams of a communication interface of the present invention.
  • FIG. 3 is a schematic diagram of a connection manner between a module platform and a function module according to the present invention.
  • FIG. 4 is a format diagram of a preset data frame of a communication interface for transmitting data according to the present invention
  • FIG. 5 is a schematic diagram of a communication process between a functional module and a module framework of the present invention.
  • FIG. 6 is a schematic flow chart of a communication method between a functional module and a module framework according to the present invention.
  • FIG. 7 is a schematic structural diagram of a system of a module framework and an intelligent terminal according to the present invention.
  • FIG. 8 is a schematic structural diagram of a module frame and an intelligent terminal according to the present invention.
  • FIG. 9 is a schematic diagram of a control structure of a battery module of the present invention.
  • 10 is a schematic view showing a control structure of an air and water module according to the present invention
  • 11 is a schematic diagram of a Bluetooth headset control structure according to the present invention
  • FIG. 12 is a schematic diagram of a control structure of a wristband module according to the present invention.
  • FIG. 1 is a schematic structural diagram of a communication interface communication function module and a module platform according to the present invention.
  • the communication interface of the present invention is used to connect and implement communication between the module platform and the function module.
  • the smart terminal includes, but is not limited to, a smart phone, a smart bracelet, smart glasses, etc.; the smart terminal uses an Android operating system, an IOS operating system, a Windows operating system, a Linux operating system, and the like.
  • Function modules include but are not limited to: battery module, air module, water module, bracelet module, Bluetooth headset module, positioning module, distance detection module, temperature detection module, storage module, NFC module, wireless charging module, etc.
  • the communication interface includes: a first interface disposed on the function module and a second interface disposed on the module platform, and the first interface and the second interface are matched.
  • the module platform may include a plurality of second interfaces, and the module platform connects the first interface of the function modules through each of the second interfaces to implement expansion of one functional module.
  • the first interface and the second interface are 8-pin interfaces, including: a first pin VIN, a second pin DET0, a third pin DET1, a fourth bow 13 but VOUT, a fifth bow 13 But GND, sixth pin DM, seventh pin DP, eighth pin GND.
  • the first pin VIN is used for power access of the function module, and is used for the first type of function module and the second type of function module, and the first type of function module and the second type of function module are divided by the second pin.
  • DET0 and the third pin DET1 are implemented.
  • the second bow I foot DET0 and the third pin DET1 are used to classify the function module according to the second bow
  • the impedance level of DET1 divides the functional modules into four categories:
  • the functional module is an empty module or an idle module, and the module only needs to be plugged into the module platform, and no signal is entered or output.
  • the functional modules are the first type of power supply modules, which require the modular platform to provide electrical characteristics, ie, provide electrical energy and communicate.
  • the module platform is a module frame
  • the module framework is used to connect to the smart terminal, and the second type of function module is directly connected to the module frame for use.
  • the functional module is a second type of power supply module, which requires the modular platform to provide electrical characteristics, that is, to provide electrical energy and to communicate.
  • the module platform is a module framework
  • the module framework is used to connect the smart terminal
  • the second type of function module is directly connected to the smart terminal for use.
  • the third type of function module is a storage module
  • the storage module processes the data through the module framework and then transfers the data to the smart terminal, the data transmission rate is slow, and the requirements of the processor of the module frame are relatively high, resulting in The cost increases. Therefore, such modules need to directly interact with the intelligent terminal for data interaction without intermediate transfer, thereby increasing the data transmission rate.
  • the fourth type of function module is a battery or a charging device, and the battery can be charged by VIN at the same time.
  • the fourth reference 3 but VOUT is used for the power output of the function module
  • the sixth bow I pin DM and the seventh bow I pin DP are used to transmit data content.
  • FIGS. 2a and 2b are diagrams showing the pin structure of a communication interface of the present invention.
  • the eight pins of the first interface correspond to the eight pins of the second interface.
  • the eight pins of the first interface and the second interface are distributed in two rows, four pins in each row, and the pins in each row are equally spaced.
  • the eight pins of the first interface and the second interface are distributed in a row, that is, eight pins are arranged in a row. It can be understood that the distribution of the eight pins of the communication interface can be adaptively adjusted according to the shape and connection position of the functional module and the module platform.
  • FIG. 3 is a schematic diagram of a connection manner between a module platform and a function module according to the present invention.
  • a plurality of second interfaces are disposed on the module platform, and each second interface corresponds to a slot for installing the function module, the slots are arranged in parallel, and the function module passes through one or more slots and the module frame connection.
  • the function module is inserted into the slot, and the second interface of the module platform is connected through the first interface thereof, thereby implementing connection with the module platform.
  • the function module can be a slot to plug in a function module, also It can be a module that occupies multiple slots.
  • the module platform is provided with four second interfaces, corresponding to four slots, which may be a single-slot function module corresponding to one slot of a function module, or a function module corresponding to two slots.
  • the two-in-one interface can also be a four-in-one interface with one function module corresponding to four slots. It can be understood that when one module corresponds to multiple slots, the first interface may be one or more.
  • the functional modules in the present invention may be a single function or a plurality of functions, and may be combined as needed. If it is a single function module, only one first interface is required; if it is a multi-function module, there may be multiple first interfaces.
  • FIG. 4 is a block diagram of a preset data frame format for transmitting data of a communication interface according to the present invention.
  • the communication interface is used for connection and communication between the function module and the module platform, and the communication interface transmits data through a preset data frame, where the preset data frame includes: a preamble field (preamble), a command code field (command field) ), serial number field (serial number), data length field (data length), data content field (data), check code field (checksum);
  • the preamble field is a synchronization header, which is used to indicate the flow direction of the data stream, and its byte is fixed.
  • the command code field is a communication command between the function module and the module platform.
  • the present invention sets a command list, which is stored in the function module and the module platform for encoding and decoding.
  • the serial number field is a serial number automatically generated by a system composed of a module platform and a function module, and the corresponding reply command uses the same serial number, and only the initiator has the serial number generated by the system.
  • the data content field is a transmission data content, where the transmission data content includes commands and data sent by the module platform to the function module, and collected data sent by the function module to the module platform. For example, temperature data, positioning information, etc. collected by the function module.
  • the data length field is the length of the data content to be transmitted, and the length of the data content can be set as needed, and can satisfy the data transmission requirement; for example, 255 bytes, 1024 bytes, and the like.
  • the check code field is used to verify the preset data frame. After the transmission of the preset data frame is completed, it is necessary to detect whether the data frame has an error during transmission and to perform data correction by verification.
  • the present invention does not limit the manner of data verification, and can perform data verification. For example, use CRC check (C Yclic Redundancy Check, Cyclic Redundancy Check Code) or BCC Check Character
  • FIG. 5 is a schematic diagram of a communication process between a functional module and a module framework of the present invention.
  • the function module uses the communication interface to connect to the module framework, and the module framework is used to connect the smart terminal.
  • the communication protocol used by the communication interface includes: a trick protocol, a module control protocol, and a data exchange protocol.
  • the trick protocol is used for discovery detection of function modules.
  • the data of the trick protocol is defined as: Data type (1 byte) + Data mode supported by the module (1 byte) + 2 bytes (extended).
  • the Tuen Mun Agreement is shown in Table 1:
  • a module control protocol is used to set the configuration of the function module and the type of the command to be adjusted
  • a data exchange protocol is used for downloading and uploading data.
  • FIG. 6 is a schematic flow chart of a communication method between a functional module and a module framework according to the present invention.
  • the function module of the present invention and the module framework communication method, the module interface and the function module adopt the HID (Human Interface Device) protocol as the underlying communication basic protocol, and the application data packet adopts the preset data frame.
  • the communication between the function module and the module framework includes the following steps:
  • S1 after the function module is plugged into the module frame, the module frame performs module type identification on the function module, and During the identification process, the module framework does not supply power to the functional modules;
  • S2 after the module frame identifies the type of the function module, powering and/or connecting the function module;
  • S4 The module framework establishes a communication connection with the function module according to the trick protocol.
  • the communication interface for the command frame and the function module transmits data by using a preset data frame
  • the length of the preset data frame is not more than 260 bytes
  • the small end mode is adopted.
  • the data length of the preamble field, the command code field, the sequence number field, the data length field, and the check code field is 1 byte
  • the data length of the data content field is N bytes, where N is Natural number.
  • the preamble field is a synchronization header, which is used to indicate the flow direction of the data stream, and its byte is fixed.
  • the command code field is a communication command between the function module and the module framework.
  • the present invention sets a command list, which is stored in the function module and the module frame, respectively, for encoding and decoding.
  • the serial number field is a serial number automatically generated by a system composed of a module framework and a function module, and the corresponding reply command uses the same serial number, and only the initiator has the serial number generated by the system.
  • the data content field is a transmission data content, which includes commands and data sent by the module framework to the function module, and collected data sent by the function module to the module framework. For example, temperature data, positioning information, etc. collected by the function module.
  • the data length field is the length of the transmitted data content, and is up to 255 bytes.
  • the check code field is used to verify the preset data frame. After the transmission of the preset data frame is completed, it is necessary to detect whether the data frame has an error during transmission and to perform data correction by verification.
  • the verification code field is verified by the BCC check method.
  • the air module needs to report the trick protocol after power-on, and the data in the trick protocol is as defined above.
  • the air module uses the command code of the Internet of Things module, and all command codes are defined between 0X10 and 0X1F.
  • the late increase command ⁇ specifies the value of the corresponding command in this interval.
  • Command Name Get current air indicator data.
  • Command code value 0X10.
  • Command Description Obtain the air module data values of the air module.
  • Application scenario The framework communicates with the air module through this instruction to obtain the air related data.
  • Air return data Little endian 4 bytes of air data, or OxFFFFxxxx, where OxFFFF indicates an error return and XXXX indicates an error code.
  • the wristband module needs to report the trick protocol after power-on, and the data in the trick protocol is as defined above.
  • All the command codes of the bracelet module are defined between 0X20 and 0X2F, and the later increase command ⁇ specifies the value of the corresponding command in this area.
  • Command code value 0X20.
  • Air return data The length is returned by the module, error ⁇ returns 4 bytes OxFFFFxxxx, where OxFFFF indicates an error return and XXXX indicates an error code.
  • FIG. 7 is a schematic structural diagram of a system of a module framework and an intelligent terminal according to the present invention.
  • the function module establishes a connection and communicates with the module framework through the communication interface of the present invention, and the module frame connects to the intelligent terminal and communicates.
  • the smart terminal is a smart phone
  • the module frame is a mobile phone back shell.
  • the above communication interface is used between the function module and the module framework, and the management terminal is provided with a management APP for managing the module framework and the function module.
  • the intelligent terminal communicates with the module framework, and the module framework communicates with the function module through the communication interface.
  • the communication interface transmits data through a preset data frame, in a preset data frame: a preamble field, a command code field, a sequence number field, a data length field, And the data length of the check code field is 4 bytes, the data length of the data content field is N bytes, and N is a natural number.
  • the preamble field is a synchronization header, which is used to indicate the flow direction of the data stream, and its byte is fixed.
  • the command code field is a communication command between the function module and the module framework.
  • the present invention is provided with a command list, which is stored in the function module, the module framework, and the intelligent terminal, respectively, for encoding and decoding. .
  • the sequence number field is an automatically generated sequence of a system composed of a smart terminal, a module framework, and a function module. No. The corresponding reply command uses the same serial number. Only the initiator has the system generated serial number.
  • the data content field is a transmission data content, which includes commands and data sent by the module platform to the function module, and collected data sent by the function module to the module platform. For example, temperature data, positioning information, etc. collected by the function module.
  • the data length field is the length of the transmitted data content, and the length of the data content is not more than 1024 bytes. Preferably, if the data length is greater than 1024 bytes, a framing connection is used.
  • the check code field is used to check the preset data frame. After the transmission of the preset data frame is completed, it is necessary to detect whether the data frame has an error during transmission and to perform data correction by verification. The check code field is verified by the CRC check method.
  • the command code field includes: a connection request command field in which the smart terminal initiates a connection to the module framework, for example, after the android host detects the module framework, and the module framework responds, the subsequent service query can be extended, the field The value is 0x4E584E43.
  • the smart terminal initiates a disconnection connection command field of the disconnection connection to the module framework; for example, the android host is to be triggered after the module framework is broken, and the subsequent command field cannot be transmitted after the module framework rings, the value of the field is 0x45534C43, or the module is detected. After the frame is unplugged, it is automatically in the CLOSE state.
  • the synchronization command field issued by the module frame interval is preset, for example, automatically initiated by the framework every 5 seconds. The value of this field is 0x434E5953. If the field is not received, it indicates that the connection is abnormal.
  • FIG. 8 is a schematic structural diagram of a module frame and an intelligent terminal according to the present invention.
  • Command Word Description This protocol mainly describes the control method of module frame access detection and frame power acquisition.
  • Command word structure As shown in Table 7, respectively, corresponding to frame access, frame break, and power acquisition:
  • Intelligent terminal reply As shown in Table 8, the frame access, frame break, and power acquisition are respectively performed.
  • FIG. 9 is a schematic diagram of a control structure of a battery module of the present invention.
  • Command Word Name Battery Control Protocol.
  • Command Word Description This protocol mainly describes the charging/uncharging control of the battery module, and the manner in which the power is acquired.
  • Command word structure As shown in Table 9, respectively, the battery is charged, not charged, and the power is obtained.
  • Intelligent terminal reply As shown in Table 10, the battery is charged, not charged, and the power is obtained.
  • the user mainly controls the use of the battery module.
  • the battery module can be controlled to charge the module frame; or when the smart terminal (such as a mobile phone) has insufficient power, the battery module can be controlled.
  • the smart terminal is charged.
  • Command Word Name U disk control protocol.
  • Command word description This protocol mainly describes U disk online monitoring, U disk password input, U disk read and write control methods.
  • Command word structure as shown in Table 11, respectively, corresponding to U disk detection, U disk password matching, U disk data reading and writing.
  • Intelligent terminal reply As shown in Table 12, corresponding to U disk detection, U disk password matching, U disk data reading and writing.
  • Usage scenario Here, the user mainly interacts with the U disk module.
  • the frame is inserted into the U disk, the user is prompted to insert a large-capacity storage device, and the user performs corresponding operations.
  • the U disk password is matched with the background, and the U disk data is read and written. This is placed in the cloud, and the user controls by sending corresponding commands.
  • Command Word Name Air, Water Sensor Control Protocol.
  • Command Word Description This protocol mainly describes the online detection of air and water sensor modules, as well as the way in which data and all data are acquired.
  • Command word structure As shown in Table 13, respectively, the module detects, acquires data once, and summarizes data.
  • Intelligent terminal reply as shown in Table 14, respectively, corresponding module detection, acquisition of data, data summary
  • FIG. 11 is a schematic diagram of a Bluetooth headset control structure according to the present invention.
  • Command Word Name Bluetooth Headset Control Protocol.
  • Command Word Description This protocol mainly describes the online detection of Bluetooth headset module, the charging mode of headset charging and non-charging.
  • Command word structure as shown in Table 15, respectively, module detection, module charging, no charging
  • FIG. 12 is a schematic diagram of a control structure of a wristband module of the present invention.
  • Command Word Description This protocol mainly describes the control method of the wristband module online detection, wristband data acquisition, wristband charging and non-charging.
  • Command word structure as shown in Table 17, respectively, module detection, charging, no charging, and data reading.
  • Intelligent terminal reply As shown in Table 18, the module detects, charges, does not charge, and reads data respectively.
  • Usage scenario Here is mainly the interaction between the smart terminal and the wristband module.
  • the module framework can detect the existence of the wristband, and then the smart terminal can control the framework to charge the wristband, and the smart terminal needs the wristband. After the data, you can send an instruction to read the data.

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  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

La présente invention concerne une interface de communication et un procédé de communication. L'interface de communication comprend : des premières interfaces disposées sur des modules fonctionnels et des secondes interfaces disposées sur une plateforme de module, les premières interfaces correspondent aux secondes interfaces, et les premières interfaces et les secondes interfaces sont des interfaces à 8 broches. L'interface de communication est utilisée pour la connexion et la communication entre le module fonctionnel et la plateforme de module. Des données sont transmises par l'intermédiaire de l'interface de communication au moyen d'une trame de données prédéfinie, et la trame de données prédéfinie comprend un champ de préambule, un champ de code de commande, un champ de numéro de séquence, un champ de longueur de données, un champ de contenu de données et un champ de code de contrôle. La mise en oeuvre de la présente invention permet de réaliser le branchement à chaud, l'identification, la connexion et la communication de modules fonctionnels, facilitant ainsi l'extension de fonction d'un terminal intelligent et satisfaisant aux besoins personnalisés des utilisateurs.
PCT/CN2017/099350 2017-08-28 2017-08-28 Interface de communication et procédé de communication Ceased WO2019041104A1 (fr)

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