WO2019019889A1 - 胎压监测模块的升级方法及其装置、胎压传感器 - Google Patents

胎压监测模块的升级方法及其装置、胎压传感器 Download PDF

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Publication number
WO2019019889A1
WO2019019889A1 PCT/CN2018/094540 CN2018094540W WO2019019889A1 WO 2019019889 A1 WO2019019889 A1 WO 2019019889A1 CN 2018094540 W CN2018094540 W CN 2018094540W WO 2019019889 A1 WO2019019889 A1 WO 2019019889A1
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WIPO (PCT)
Prior art keywords
upgrade
module
tire pressure
programming
file
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Ceased
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PCT/CN2018/094540
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English (en)
French (fr)
Inventor
王涛
伍勇
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Autel Intelligent Technology Corp Ltd
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Autel Intelligent Technology Corp Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0474—Measurement control, e.g. setting measurement rate or calibrating of sensors; Further processing of measured values, e.g. filtering, compensating or slope monitoring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0479—Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/65—Updates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0471—System initialisation, e.g. upload or calibration of operating parameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L17/00—Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
    • G06F11/3013—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system is an embedded system, i.e. a combination of hardware and software dedicated to perform a certain function in mobile devices, printers, automotive or aircraft systems
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/445—Program loading or initiating
    • G06F9/44589—Program code verification, e.g. Java bytecode verification, proof-carrying code

Definitions

  • the present application relates to the field of automotive electronic technology, and in particular to an upgrade method and device for a tire pressure monitoring module, and a tire pressure sensor.
  • the tire pressure monitoring system is a safety guarantee system for real-time automatic monitoring of tire air pressure during vehicle driving, and alarming tire leakage and low air pressure to ensure driving safety.
  • Tire pressure sensor is an important part of tire pressure monitoring system. , undertake the important task of obtaining the internal environmental data of the tire.
  • the tire pressure sensor in the prior art can only be upgraded by cable programming due to the tire pressure monitoring chip itself, so the existing programming upgrade technology is a cable programming upgrade.
  • the tire pressure sensor needs to be upgraded, the tire pressure sensor needs to be removed from the tire, and the programming upgrade tool can be connected to the air. Therefore, it can invisibly add a lot of work, and even damage the tire during the disassembly process. And the whole process is complicated to operate and the operation efficiency is low.
  • the technical problem to be solved by the embodiment of the present invention is to provide a method for upgrading the tire pressure monitoring module and a tire pressure sensor, which can solve the problem that the upgrade of the tire pressure monitoring module in the prior art is wired programming and the upgrading operation is complicated.
  • a technical solution adopted by the embodiment of the present invention is to provide a method for upgrading a tire pressure monitoring module, which is applied to a tire pressure sensor, wherein the tire pressure sensor includes a signal receiving module and a tire pressure.
  • a monitoring module, a programming upgrade module, and a memory comprising: the signal receiving module wirelessly receiving an upgrade file, and saving the upgrade file to the memory;
  • the programming upgrade module controls the tire pressure monitoring module to enter an upgrade mode
  • the programming upgrade module reads the upgrade file from the memory, and upgrades the tire pressure monitoring module in the upgrade mode according to the upgrade file.
  • the trigger signal is a wake-up signal for waking up the programming upgrade module in a sleep mode.
  • the method further includes: the signal receiving module detects a preset upgrade identifier from the received data, and determines that the received data is an upgrade file;
  • the file size of the upgrade file is obtained and saved
  • the programming upgrade module reads the upgrade file, including:
  • the programming upgrade module reads the upgrade file according to a file size of the upgrade file.
  • the programming upgrade module reads the upgrade file according to a file size of the upgrade file, including:
  • the programming upgrade module determines the number of readings according to the file size of the upgrade file and the amount of data that can be upgraded by the tire pressure monitoring module, and sequentially reads the upgrade file according to the read times. Upgrade the data.
  • the programming upgrade module controls the tire pressure monitoring module to enter an upgrade mode, including:
  • the programming upgrade module controls the tire pressure monitoring module to be powered off
  • the programming upgrade module sends an upgrade signal to the tire pressure monitoring module to cause the tire pressure monitoring module to enter the upgrade mode.
  • the method further includes:
  • the programming upgrade module determines whether the upgrade file is valid
  • the program upgrade module upgrades the tire pressure monitoring module in the upgrade mode according to the upgrade file, including:
  • the programming upgrade module upgrades the tire pressure monitoring module in the upgrade mode according to the upgrade file.
  • the method further includes:
  • the programming upgrade module determines whether the tire pressure monitoring module is successfully upgraded
  • the programming upgrade module re-upgrades the tire pressure monitoring module according to the upgrade file.
  • the method further includes:
  • the programming upgrade module upgrades the tire pressure monitoring module and enters a sleep mode.
  • an upgrade device for a tire pressure monitoring module including:
  • a signal receiving module a memory connected to the signal receiving module, a programming upgrade module respectively connected to the memory by the signal receiving module, and a tire pressure monitoring module connected to the programming upgrade module;
  • the signal receiving module is configured to wirelessly receive an upgrade file, and save the upgrade file to the memory
  • the signal receiving module is configured to send a trigger signal to the programming upgrade module after saving the upgrade file;
  • the programming upgrade module is configured to control the tire pressure monitoring module to enter an upgrade mode after receiving the trigger signal;
  • the programming upgrade module is configured to read the upgrade file from the memory, and upgrade the tire pressure monitoring module in the upgrade mode according to the upgrade file.
  • the trigger signal is a wake-up signal for waking up the programming upgrade module in a sleep mode.
  • the signal receiving module is configured to detect a preset upgrade identifier from the received data, and determine that the received data is an upgrade file;
  • the signal receiving module is configured to: after determining that the upgrade file is received, acquire and save a file size of the upgrade file;
  • the programming upgrade module is specifically configured to:
  • the upgrade file is read according to the file size of the upgrade file.
  • the programming upgrade module is specifically configured to:
  • the programming upgrade module is specifically configured to:
  • An upgrade signal is sent to the tire pressure monitoring module to cause the tire pressure monitoring module to enter the upgrade mode.
  • the programming upgrade module is configured to determine whether the upgrade file is valid
  • the programming upgrade module is specifically configured to:
  • the tire pressure monitoring module in the upgrade mode is upgraded according to the upgrade file.
  • the programming upgrade module is configured to determine whether the tire pressure monitoring module is successfully upgraded
  • the programming upgrade module is configured to re-upgrade the tire pressure monitoring module according to the upgrade file.
  • the programming upgrade module is configured to enter the sleep mode after the tire pressure monitoring module is upgraded.
  • Another embodiment of the present invention provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program When the instructions are executed by the processor, the processor is caused to perform the above-described upgrade method of the tire pressure monitoring module.
  • Another embodiment of the present invention provides a non-transitory computer readable storage medium storing computer-executable instructions that are one or more
  • the processor when executed, may cause the one or more processors to perform the upgrade method of the tire pressure monitoring module described above.
  • the embodiment of the invention provides a method for upgrading a tire pressure monitoring module and a tire pressure sensor, which can receive and save an upgrade file by wireless, and can control the tire pressure monitoring module to enter an upgrade mode, thereby implementing the tire pressure monitoring module according to the upgrade file. upgrade.
  • the embodiment of the present invention can transform the existing wired upgrade into a wireless upgrade, simplify the upgrade process, avoid the possibility of damage to the tire caused by complicated operations, improve the upgrade efficiency, lower the upgrade cost, and improve the tire. Upgrade safety of pressure sensors.
  • FIG. 1 is a schematic flow chart of a method for upgrading a tire pressure monitoring module according to an embodiment of the present invention
  • FIG. 2 is a schematic flow chart of a method for upgrading a tire pressure monitoring module according to another embodiment of the present invention
  • FIG. 3 is a schematic flow chart of an implementation manner of step S100 in FIG. 1;
  • step S101 in FIG. 3 is a schematic flow chart of an implementation manner of step S101 in FIG. 3;
  • FIG. 5 is a schematic flowchart of an implementation manner of step S200 in FIG. 1;
  • FIG. 6 is a schematic flowchart of an implementation manner of step S202 in FIG. 5;
  • FIG. 7 is a schematic diagram showing the functional structure of an upgrade device for a tire pressure monitoring module according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram showing the functional structure of an upgrade device for a tire pressure monitoring module according to another embodiment of the present invention.
  • FIG. 9 is a schematic diagram showing a functional structure of the upgrade file obtaining module 100 of FIG. 7;
  • FIG. 10 is a schematic diagram showing a functional structure of the monitoring and receiving unit 101 of FIG. 9;
  • FIG. 11 is a schematic diagram showing a functional structure of the upgrade control module 200 of FIG. 7;
  • FIG. 12 is a schematic diagram showing a functional structure of the upgrading unit 202 of FIG. 11;
  • FIG. 13 is a hardware structural diagram of a tire air pressure sensor according to still another embodiment of the present invention.
  • the embodiment of the invention aims to solve the problem that the existing tire pressure sensor can only be upgraded by wired programming due to the tire pressure monitoring module itself.
  • the tire pressure monitoring module is generally a tire pressure monitoring chip.
  • the programming upgrade module is integrated in the tire pressure sensor. First, the sensor acquires the programming upgrade file, and then stores the programming upgrade file in the preparation storage unit. When the saving is finished, the programming upgrade module is notified to read the programming upgrade file in the storage unit. Then, the sensor's tire pressure monitoring module is programmed to be upgraded.
  • the programming upgrade module can meet the system requirements by using low-performance components, and the cost will not increase a lot. However, the wireless upgrade is realized, which effectively solves the problems of low efficiency, complicated operation and security risks.
  • the tire pressure sensor can measure tire pressure, temperature, acceleration and other information through the tire pressure monitoring module.
  • the storage module in the tire pressure monitoring module such as FLASH
  • the tire pressure monitoring module only allows the FLASH to be wiped in the upgrade mode.
  • the upgrade file received by the tire pressure sensor through the signal receiving module cannot be written into the tire pressure monitoring module, and thus the tire pressure monitoring module cannot be upgraded.
  • the tire pressure sensor needs to trigger the tire pressure monitoring module to enter the upgrade mode by an external device, which may be required to be connected to the tire pressure sensor through an external device, or the external device may trigger the tire pressure after the tire pressure sensor is unloaded from the vehicle.
  • the monitoring module enters the upgrade mode implementation.
  • the embodiment of the present application provides a tire pressure sensor and a method for upgrading a tire pressure monitoring module.
  • FIG. 13 is a structural diagram of a tire pressure sensor according to an embodiment of the present application.
  • the tire pressure sensor includes a signal receiving module 1301, a memory 1302, a programming upgrade module 1303, and a tire pressure monitoring module 1304.
  • the signal receiving module 1301 may be a wireless receiving module, which can implement communication with an external terminal by using a wireless network.
  • the external device may be a device for programming the tire pressure sensor, such as a vehicle diagnostic device, a tire pressure special tool, a tire pressure programming tool, and the like, and is not limited herein.
  • the signal receiving module 1301 may be a low frequency receiving module for receiving a low frequency signal carrying an upgrade file based on a communication protocol with an external terminal.
  • the signal receiving module 1301 can be implemented by a device such as a wireless communication interface, which is not limited herein.
  • the memory 1302 is connected to the signal receiving module 1301 and can be used to save the upgrade file received by the signal receiving module 1301.
  • the memory can be a volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM), such as static random access memory (English: static random-access memory, abbreviation: SRAM ), double data rate synchronous dynamic random access memory (English: Double Data Rate Synchronous Dynamic Random Access Memory, abbreviation: DDR SDRAM).
  • the memory may be a non-volatile memory, such as a flash memory, a hard disk drive (HDD) or a solid state drive (English: solid-state drive, Abbreviations: SSD), Electrically Erasable Programmable Read Only Memory (EEPROM), and the like.
  • the program upgrade module 1303 can be coupled to the signal receiving module 1301 and the memory 1302, respectively.
  • the signal receiving module 1301 may send a trigger signal to the programming upgrade module 1303 after the data receiving is completed and saved to the memory 1302, to trigger the programming upgrade module 1303 to read the upgrade file in the memory 1302, and according to the upgrade file.
  • the tire pressure monitoring module 1304 is upgraded.
  • the program upgrade module 1303 can be implemented by a controller, a processor, or the like.
  • the tire pressure monitoring module 1304 can be coupled to the programming upgrade module 1303.
  • the tire pressure monitoring module 1304 can enter the startup mode under the control of the programming upgrade module.
  • the programming upgrade module 1303 can implement the upgrade of the tire pressure monitoring module 1304.
  • the tire pressure monitoring module 1304 can be implemented by a tire pressure monitoring chip or the like.
  • the method in the embodiment of the present application implemented by the foregoing module may be implemented by hardware in combination with the software in the foregoing module, that is, the hardware runs the software to implement the method in the embodiment of the present application, which is not limited herein. .
  • the upgrade file received by the signal receiving module can be saved, and the trigger tire pressure monitoring module can be activated to enter the startup mode, thereby realizing the tire pressure monitoring according to the saved upgrade file.
  • the module is upgraded. Thereby, the wireless upgrade of the tire pressure sensor can be realized, and the upgrade operation of the tire pressure sensor is simplified.
  • FIG. 1 is a schematic flowchart diagram of a method for upgrading a tire pressure monitoring module according to an embodiment of the present invention.
  • the upgrade method of the tire pressure monitoring module is applied to a tire pressure sensor, and the embodiment includes:
  • Step S100 The signal receiving module receives the upgrade file and saves the upgrade file.
  • the signal sent by the external device of the tire pressure sensor receives the upgrade file
  • the signal receiving module is a low frequency receiving module, for example, a low frequency inductor, etc.
  • the upgrade file can be transmitted to the low frequency receiving module of the tire pressure sensor through the low frequency;
  • the upgrade file may also be transmitted to the tire pressure sensor via other channels.
  • the upgrade file may be from an external device, or the tire pressure sensor is connected to a cloud server, and the cloud server monitors the tire pressure monitoring module to transmit an upgrade file to the tire pressure sensor when a new upgrade file is updated.
  • the tire pressure sensor is saved after obtaining the upgrade file. Generally, the saved location can be set in advance.
  • the upgrade file is usually a programming upgrade file.
  • the programming upgrade file is an offline update package. These offline update packages refer to the installer.
  • the installed content corresponding to the installed program is the updated part.
  • the unchanged file directly uses the installed version.
  • the programming upgrade file also modifies some system configurations to accommodate the new version. In the following embodiment, the upgrade file is described as a programming upgrade file.
  • Step S200 After the signal receiving module saves the upgrade file, sending a trigger signal to the programming upgrade module.
  • the programming upgrade module controls the tire pressure monitoring module to enter an upgrade mode
  • the programming upgrade module reads the upgrade file from the memory, and upgrades the tire pressure monitoring module in the upgrade mode according to the upgrade file.
  • the upgrade file may include multiple upgrade packages
  • the signal receiving module may sequentially receive the upgrade package of the upgrade file and save it to the memory until all the upgrade packages of the upgrade file are saved, and may upgrade to the programming module.
  • the trigger signal can be used to trigger the programming upgrade module to control the tire pressure monitoring module to enter the upgrade mode.
  • the trigger signal may be a wake-up signal.
  • the programming upgrade module can be in the sleep mode under normal conditions. When the programming upgrade module receives the wake-up signal, it enters the working mode, and thus the tire pressure monitoring module can be controlled. In this way, the power consumption of the tire pressure sensor can be saved.
  • the signal receiving module may send a trigger signal to the programming upgrade module by using an interrupt, a message queue, or the like, which is not limited herein.
  • the programming upgrade module can control the tire pressure monitoring module to enter the upgrade mode (ie, the upgrade state).
  • the tire pressure monitoring module is controlled to enter an upgrade mode by transmitting an upgrade signal to the tire pressure monitoring module.
  • it can also be understood as a wake-up tire pressure monitoring module.
  • the specific wake-up tire pressure monitoring module refers to converting the tire pressure monitoring module from the state of monitoring the tire pressure to the upgrade state.
  • the programming upgrade module can The upgrade file saved in the tire pressure sensor is read, and the tire pressure monitoring module is programmed and upgraded according to the upgrade file, thereby implementing the wireless upgrade of the tire pressure monitoring module.
  • the upgrade mode ie, an upgrade state
  • the programming upgrade module controls the tire pressure monitoring module to enter the upgrade mode, which can be first controlled.
  • the tire pressure monitoring module is powered off.
  • an upgrade signal can be sent to the tire pressure monitoring module to cause the tire pressure monitoring module to enter the upgrade mode. That is, the tire pressure monitoring module can support the programming upgrade module to perform the erasing operation on the FLASH or other storage unit configured by the program in the power-off state.
  • the programming upgrade module can control the tire pressure monitoring module to perform power supply after the tire pressure monitoring module is upgraded.
  • FIG. 2 is a schematic flowchart diagram of a method for upgrading a tire pressure monitoring module according to another embodiment of the present invention.
  • step S200 further includes:
  • Step S300 After detecting that the tire pressure monitoring module is upgraded, the programming upgrade module enters a sleep mode.
  • the programming upgrade module can automatically perform a sleep mode to ensure low power consumption of the tire pressure sensor.
  • FIG. 3 is a schematic flowchart of step S100 in FIG. As shown in FIG. 3, after step S100, the method further includes:
  • Step S101 The signal receiving module detects a preset upgrade identifier from the received data, and determines that the received data is an upgrade file.
  • Step S102 After the signal receiving module determines that the upgrade file is received, Get and save the file size of the upgrade file.
  • the main work of the sensor is to monitor the internal state of the tire
  • the programming upgrade is one of the functions, so it is necessary to preset the identification to distinguish different functions. That is, the signal receiving module distinguishes the upgrade file and other data by using a preset identifier.
  • the other data may be an activation signal sent by the external device to the tire pressure monitoring device, thereby activating the tire pressure monitoring device; or, other data may be external Interaction data between the device and the tire pressure monitoring module, and the like. After the signal receiving module detects the preset upgrade identifier from the received data, it can determine that the received data is upgrade data.
  • the signal receiving module first receives the identifier and determines that the identifier is an upgrade identifier, and then starts receiving the programming upgrade file.
  • the programming upgrade file may be relatively large, and needs to be saved in a packet transfer. It needs to be saved multiple times. When the program upgrade file transfer is saved, the program upgrade file size is written at the specific address of the storage unit to facilitate judging whether the program upgrade operation is finished.
  • the programming upgrade module can also read the upgrade file according to the size of the written upgrade file.
  • the programming upgrade module can read a complete or partial upgrade file from memory based on the size of the upgrade file being written.
  • the programming upgrade module may further determine the amount of data that can be upgraded by the tire pressure monitoring module, and determine the number of readings according to the size of the upgradeable data and the size of the upgrade file, and sequentially read the number according to the number of readings. Upgrade data in the upgrade file.
  • the programming upgrade module can read the upgrade data of the upgradeable data amount in the upgrade file at one time, and upgrade the tire pressure monitoring module, and after the upgrade is finished, read the upgrade data of the same size in the upgrade file, and Upgrade the tire pressure monitoring module until the tire pressure monitoring module is upgraded.
  • FIG. 4 is a schematic flowchart of an implementation manner of step S101 in FIG. As shown in FIG. 4, step S101 includes:
  • Step S111 When a preset upgrade identifier is detected, the signal receiving module receives the upgrade file.
  • this step can also be replaced by:
  • the signal receiving module detects whether there is a preset upgrade identifier in the received data, and if there is a preset upgrade identifier, determines that the received data is upgrade data.
  • Step S112 Perform verification on the received upgrade file, and if the verification passes, save the data. If the verification fails, the verification error is returned, and the retransmission is requested.
  • control signal receiving module starts to receive the programming upgrade file only after monitoring the preset programming upgrade identifier.
  • data verification such as CRC32
  • the tire pressure monitoring module receives the data according to the agreed algorithm for verification, passes the verification, and saves the data. Otherwise, the verification error is returned and the retransmission is required.
  • the last packet of data contains the data check of the entire programming upgrade file, which is judged by the tire pressure sensor.
  • FIG. 5 is a schematic flowchart of an implementation manner of step S200 in FIG. As shown in FIG. 5, step S200 includes:
  • Step S201 the programming upgrade module controls the tire pressure monitoring module to enter an upgrade mode
  • Step S202 The program upgrade module reads the saved upgrade file according to the upgrade file size, and upgrades the tire pressure monitoring module according to the upgrade file.
  • FIG. 6 is a schematic flowchart of an implementation manner of step S202 in FIG. As shown in FIG. 6, step S202 includes:
  • Step S221 the programming upgrade module determines whether the upgrade file is valid; if it is determined that the upgrade file is valid, the programming upgrade module upgrades the tire pressure monitoring module in the upgrade mode according to the upgrade file. .
  • Step S222 When the upgrade is completed, the programming upgrade module determines whether the tire pressure monitoring module is successfully upgraded; if the upgrade is not successful, the programming upgrade module re-upgrades the tire pressure monitoring module according to the upgrade file. .
  • Step S223 If the upgrade file is invalid, the upgrade ends.
  • the programming upgrade module before the upgrade of the tire pressure monitoring module by the programming upgrade module, it can be judged whether the upgrade file is valid, that is, the validity check is performed, and the entire programming upgrade file is checked, and the verification is passed before the program upgrade operation is performed; otherwise, directly Exit and abandon the programming upgrade.
  • the programming upgrade module may determine whether the tire pressure monitoring module is successfully upgraded, that is, whether the tire pressure monitoring module is upgraded according to the verification result of the data or the file updated according to the upgrade file in the tire pressure monitoring module. success. If the verification passes, the flag programming upgrade is completed, otherwise the programming upgrade module can reprogram and upgrade the tire pressure monitoring module.
  • the upgrade method provided by the embodiment of the present application is introduced based on an application scenario.
  • SP37 a model of a tire pressure monitoring chip, produced by Infineon; LF (Low Frequency): low frequency; PP0 (Port Pin I/O 0): input/output interface Pin 0; PP1 (Port Pin I/O 1): Input/output interface pin 1.
  • LF Low Frequency
  • PP0 Port Pin I/O 0
  • PP1 Port Pin I/O 1
  • the SP37 tire pressure monitoring chip has the upgrade defect in the above application scenario.
  • the specific operation is: (1) disconnect the power supply, PP0 and PP1 are set to logic 0 for 1 second; (2) PP0 is set to logic 0, PP1 is set to logic 1 , turn on the power and keep the state for 1 second.
  • the program upgrade mode is also exited through a series of operations.
  • the specific operations are as follows: (1) PP0 and PP1 are set to logic 1 for 1 second; (2) Power is turned off, PP0 and PP1 are set to Logic 0 for 1 second; (3) Power on, PP0 and PP1 set to logic 1 for 1 second.
  • SP37 enters the programming upgrade mode and exits the programming upgrade mode, all need to be powered off, which is the SP37 chip itself can not be completed.
  • a programming upgrade module can be configured inside the sensor to perform mode switching and program upgrade operation on the SP37.
  • the SP37 receives the programming upgrade file through its own LF and saves it in the memory configured by the sensor to ensure that the upgrade file will not be lost after the SP37 chip is powered off.
  • the programming upgrade module is notified to upgrade the program.
  • the programming upgrade module first switches the SP37 to the programming upgrade mode, and performs the program upgrade.
  • the SP37 is exited from the upgrade mode, and the programming upgrade module enters the sleep mode to ensure low power. Consumption.
  • FIG. 7 is a schematic diagram showing the functional structure of an upgrade device for a tire pressure monitoring module according to an embodiment of the present invention.
  • the upgrade device of the tire pressure monitoring module is applied to a tire pressure sensor provided with a signal receiving module.
  • the device includes:
  • the upgrade file obtaining module 100 is configured to control the signal receiving module to receive the upgrade file, and save the upgrade file;
  • the upgrade control module 200 is configured to wake up the tire pressure monitoring module, control the tire pressure monitoring module to read the saved upgrade file, and upgrade the tire pressure monitoring module according to the upgrade file.
  • the signal receiving module in the tire pressure sensor acquires an upgrade file
  • the signal receiving module is a low frequency receiving module, for example, a low frequency inductor, etc.
  • the upgrade file can be transmitted to the low frequency receiving module of the tire pressure sensor through a low frequency; in other implementations
  • the upgrade file can also be transferred to the tire pressure sensor via other channels.
  • the upgrade file may be from another smart terminal, or the tire pressure sensor is connected to a cloud server. When the cloud server monitors that the tire pressure monitoring module has a new upgrade file update, the upgrade file is transmitted to the tire pressure sensor.
  • the tire pressure sensor is saved after obtaining the upgrade file. Generally, the saved location can be set in advance.
  • the upgrade file is usually a programming upgrade file.
  • the programming upgrade file is an offline update package. These offline update packages refer to the installer.
  • the installed content corresponding to the installed program is the updated part.
  • the unchanged file directly uses the installed version.
  • the programming upgrade file also modifies some system configurations to accommodate the new version. In the following embodiment, the upgrade file is described as a programming upgrade file.
  • the specific wake-up tire pressure monitoring module refers to converting the tire pressure monitoring module from the state of monitoring the tire pressure to the upgrade state. After the tire pressure monitoring module wakes up, the tire pressure sensor is obtained. The saved upgrade file is read and the tire pressure monitoring module is programmed and upgraded according to the upgrade file, thereby implementing the wireless upgrade of the tire pressure monitoring module.
  • FIG. 8 is a schematic diagram showing the functional structure of an upgrade device for a tire pressure monitoring module according to another embodiment of the present invention. As shown in FIG. 8, the device further includes:
  • the sleep mode control module 300 is configured to control the tire pressure sensor to enter a sleep mode after detecting that the tire pressure monitoring module is upgraded.
  • the tire pressure sensor when it is detected that the tire pressure monitoring module is upgraded, the tire pressure sensor is automatically controlled to perform a sleep mode, thereby ensuring low power consumption of the tire pressure sensor.
  • FIG. 9 is a schematic structural diagram of a function of the upgrade file obtaining module 100 in FIG.
  • the upgrade file obtaining module 100 includes:
  • the monitoring and receiving unit 101 is configured to monitor a preset upgrade identifier, and then control the signal receiving module to receive the upgrade file and save the file;
  • the file size obtaining and saving unit 102 is configured to acquire a file size of the upgrade file and save it after detecting that the upgrade file is transmitted.
  • the main work of the sensor is to monitor the internal state of the tire, and the programming upgrade is one of the functions, so it is necessary to preset the identification to distinguish different functions.
  • the control signal receiving module begins to receive the programming upgrade file only after the preset programming upgrade flag is detected.
  • the programming upgrade file may be relatively large, and needs to be saved in a packet transfer. It needs to be saved multiple times. When the program upgrade file transfer is saved, the program upgrade file size is written at the specific address of the storage unit to facilitate judging whether the program upgrade operation is finished.
  • FIG. 10 is a schematic structural diagram of a function of the monitoring and upgrading unit 101 of FIG. As shown in FIG. 10, the monitoring and receiving unit 101 includes:
  • the monitoring unit 111 is configured to: when the preset upgrade identifier is detected, control the signal receiving module to receive the upgrade file;
  • the first verification unit 112 is configured to check the received upgrade file, and if the verification passes, save the data, and if the verification fails, the verification error is returned, and the retransmission is requested.
  • control signal receiving module starts to receive the programming upgrade file only after monitoring the preset programming upgrade identifier.
  • data verification such as CRC32
  • the tire pressure monitoring module receives the data according to the agreed algorithm for verification, passes the verification, and saves the data. Otherwise, the verification error is returned and the retransmission is required.
  • the last packet of data contains the data check of the entire programming upgrade file, which is judged by the tire pressure sensor.
  • FIG. 11 is a schematic diagram of a functional structure of the upgrade control module 200 of FIG. As shown in FIG. 11, the upgrade control module 200 includes:
  • the wake-up unit 201 is configured to wake up the tire pressure monitoring module after receiving a valid upgrade wake-up signal, and control the tire pressure monitoring module to enter an upgrade mode;
  • the upgrading unit 202 is configured to read the saved upgrade file according to the upgrade file size, and upgrade the tire pressure monitoring module according to the upgrade file.
  • the tire pressure sensor wakes up the tire pressure monitoring module after issuing a valid upgrade wake-up signal, wherein the upgrade wake-up signal is a specific programming upgrade notification issued by the tire pressure sensor, and is programmed. If the upgrade file is valid, proceed to the next program upgrade operation. Otherwise, go directly to sleep mode and exit the program upgrade mode.
  • Program upgrade operation first initialize the tire pressure monitoring module, so that the tire pressure monitoring module enters the programming upgrade mode, allowing external programming to upgrade, then read the size of the programming upgrade file saved in the storage unit, if the file size is larger than The tire pressure monitoring module can be upgraded in size at one time, and requires multiple programming upgrades. After the programming upgrade is completed, the tire pressure sensor enters sleep mode to ensure low power consumption.
  • FIG. 12 is a schematic diagram of a functional structure of the upgrading unit 202 in FIG. As shown in FIG. 12, the upgrading unit 202 includes:
  • the second verification unit 221 is configured to read the saved upgrade file according to the upgrade file size, and check the upgrade file.
  • the first upgrade control unit 222 is configured to start an upgrade operation on the tire pressure monitoring module according to the upgrade file if the upgrade file is verified, and perform an upgrade result of the tire pressure monitoring module when the upgrade is completed. If the verification result is passed, the upgrade is completed. If the verification result fails to be verified, the tire pressure monitoring module is re-upgraded.
  • the second upgrade control unit 223 is configured to: if the upgrade file verification fails, the upgrade ends.
  • the validity check is performed before programming, and the entire programming upgrade file is checked, and the verification is passed before the program upgrade operation is performed. Otherwise, the program is directly exited and the program upgrade is abandoned.
  • the wiper area of the tire pressure monitoring module is verified, and the verification is passed, and the program programming upgrade is completed, otherwise the tire pressure monitoring module is reprogrammed and upgraded.
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located A place, or it can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • the embodiments can be implemented by means of software plus a general hardware platform, and of course, can also be implemented by hardware.
  • the above technical solution may be embodied in the form of a software product in essence or in the form of a software product, which may exist in a computer readable storage medium such as a ROM/RAM or a disk. , an optical disk, etc., includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments or portions of the embodiments.

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Abstract

一种胎压监测模块的升级方法及其装置、胎压传感器，属于汽车电子技术领域。该方法应用于设置有信号接收模块（1301）的胎压传感器，具体包括：控制信号接收模块（1301）接收升级文件，并保存所述升级文件（S100）；唤醒胎压监测模块（1304），控制所述胎压监测模块（1304）读取保存的所述升级文件，根据所述升级文件对胎压监测模块（1304）进行升级（S200）。通过该方法能够实现胎压传感器的无线升级，提高了升级效率，升级成本低，提高了胎压传感器的升级安全性。

Description

胎压监测模块的升级方法及其装置、胎压传感器
本申请要求于2018年07月25日提交中国专利局、申请号为201710613174.9、申请名称为“胎压监测模块的升级方法及其装置、胎压传感器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及汽车电子技术领域，特别是涉及胎压监测模块的升级方法及其装置、胎压传感器。
背景技术
轮胎压力监测系统是在汽车行驶过程中对轮胎气压进行实时自动监测，并对轮胎漏气和低气压进行报警，以确保行车安全的安全保障系统，胎压传感器作为轮胎压力监测系统的重要组成部分，承担着获取轮胎内部环境数据的重要任务。
现有技术中的胎压传感器由于胎压监测芯片的自身原因只能有线编程升级，因此现有的编程升级技术是有线编程升级。在胎压传感器需要升级时，需要将胎压传感器从轮胎中拆卸出来，连接编程升级工具，是不能隔空操作的，这样就无形中增加了很多工作，甚至在拆卸过程中有可能会损伤轮胎，而且整个过程操作复杂，操作效率低。
发明内容
本发明实施例主要解决的技术问题是提供一种胎压监测模块的升级方法及胎压传感器，能够解决现有技术中的胎压监测模块的升级是有线编程，升级操作复杂的问题。
为解决上述技术问题，本发明实施例采用的一个技术方案是：提供一种胎压监测模块的升级方法，应用于胎压传感器，其特征在于，所述胎压传感器包括信号接收模块、胎压监测模块、编程升级模块和存储器，其特征在于，包括：所述信号接收模块无线接收升级文件，将所述升级文件保存至所述存储器中；
所述信号接收模块保存所述升级文件后，向所述编程升级模块发送触发信号；
所述编程升级模块接收到所述触发信号后，控制所述胎压监测模块进入升 级模式；
所述编程升级模块从所述存储器中读取所述升级文件，根据所述升级文件对处于所述升级模式下的所述胎压监测模块进行升级。
可选地，所述触发信号为唤醒信号，用于唤醒处于睡眠模式下的所述编程升级模块。
可选地，所述方法还包括：所述信号接收模块从接收到的数据中检测到预设的升级标识，确定所述接收到的数据为升级文件；
所述信号接收模块确定所述升级文件接收完成后，获取并保存所述升级文件的文件大小；
所述编程升级模块读取所述升级文件，包括：
所述编程升级模块根据所述升级文件的文件大小，读取所述升级文件。
可选地，所述编程升级模块根据所述升级文件的文件大小，读取所述升级文件，包括：
所述编程升级模块根据所述升级文件的文件大小，以及所述胎压监测模块的一次可升级数据量，确定读取次数，并根据所述读取次数，依次读取所述升级文件中的升级数据。
可选地，所述编程升级模块控制所述胎压监测模块进入升级模式，包括：
所述编程升级模块控制所述胎压监测模块断电；
所述编程升级模块向所述胎压监测模块发送升级信号，以使所述胎压监测模块进入所述升级模式。
可选地，所述方法还包括：
所述编程升级模块判断所述升级文件是否有效；
所述编程升级模块根据所述升级文件对处于所述升级模式下的所述胎压监测模块进行升级，包括：
若确定所述升级文件有效，所述编程升级模块根据所述升级文件对处于所述升级模式下的所述胎压监测模块进行升级。
可选地，所述方法还包括：
所述编程升级模块判断所述胎压监测模块是否升级成功；
若未升级成功，所述编程升级模块根据所述升级文件，重新对所述胎压监 测模块进行升级。
可选地，所述方法还包括：
所述编程升级模块对所述胎压监测模块进行升级后，进入睡眠模式。
为解决上述技术问题，本发明实施例采用的另一个技术方案是：提供一种胎压监测模块的升级装置，包括：
信号接收模块，与所述信号接收模块连接的存储器，分别于所述信号接收模块与所述存储器连接的编程升级模块，以及与所述编程升级模块连接的胎压监测模块；
其中，所述信号接收模块用于无线接收升级文件，将所述升级文件保存至所述存储器中；
所述信号接收模块用于保存所述升级文件后，向所述编程升级模块发送触发信号；
所述编程升级模块用于接收到所述触发信号后，控制所述胎压监测模块进入升级模式；
所述编程升级模块用于从所述存储器中读取所述升级文件，根据所述升级文件对处于所述升级模式下的所述胎压监测模块进行升级。
可选地，所述触发信号为唤醒信号，用于唤醒处于睡眠模式下的所述编程升级模块。
可选地，所述信号接收模块用于从接收到的数据中检测到预设的升级标识，确定所述接收到的数据为升级文件；
所述信号接收模块用于确定所述升级文件接收完成后，获取并保存所述升级文件的文件大小；
所述编程升级模块具体用于：
根据所述升级文件的文件大小，读取所述升级文件。
可选地，所述编程升级模块具体用于：
根据所述升级文件的文件大小，以及所述胎压监测模块的一次可升级数据量，确定读取次数，并根据所述读取次数，依次读取所述升级文件中的升级数据。
可选地，所述编程升级模块具体用于：
控制所述胎压监测模块断电；
向所述胎压监测模块发送升级信号，以使所述胎压监测模块进入所述升级模式。
可选地，所述编程升级模块用于判断所述升级文件是否有效；
所述编程升级模块具体用于：
若确定所述升级文件有效，根据所述升级文件对处于所述升级模式下的所述胎压监测模块进行升级。
可选地，所述编程升级模块用于判断所述胎压监测模块是否升级成功；
若未升级成功，所述编程升级模块用于根据所述升级文件，重新对所述胎压监测模块进行升级。
可选地，所述编程升级模块用于对所述胎压监测模块进行升级后，进入睡眠模式。
本发明的另一种实施例提供了一种计算机程序产品，所述计算机程序产品包括存储在非易失性计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被处理器执行时，使所述处理器执行上述的胎压监测模块的升级方法。
本发明的另一种实施例提供了一种非易失性计算机可读存储介质，所述非易失性计算机可读存储介质存储有计算机可执行指令，该计算机可执行指令被一个或多个处理器执行时，可使得所述一个或多个处理器执行上述的胎压监测模块的升级方法。
本发明实施例提供了一种胎压监测模块的升级方法及胎压传感器，通过无线接收并保存升级文件，并可以控制胎压监测模块进入升级模式，进而实现根据升级文件对胎压监测模块进行升级。区别于现有技术的情况，本发明实施例能够将现有的有线升级改造成无线升级，简化升级流程，避免复杂操作对轮胎造成损伤的可能，提高了升级效率，升级成本低，提高了胎压传感器的升级安全性。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单的介绍。显而易见地，下面所描述的附图仅仅是本申请 的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获取其他的附图。
图1是本发明实施例提供的一种胎压监测模块的升级方法的流程示意图；
图2是本发明又一实施例提供的一种胎压监测模块的升级方法的流程示意图；
图3是图1中的步骤S100的一种实现方式的流程示意图；
图4是图3中的步骤S101的一种实现方式的流程示意图；
图5是图1中的步骤S200的一种实现方式的流程示意图；
图6是图5中的步骤S202的一种实现方式的流程示意图；
图7是本发明实施例提供的一种胎压监测模块的升级装置的功能结构示意图；
图8是本发明又一实施例提供的一种胎压监测模块的升级装置的功能结构示意图；
图9是图7中升级文件获取模块100的一种功能结构示意图；
图10是图9中监测与接收单元101的一种功能结构示意图；
图11是图7中升级控制模块200的一种功能结构示意图；
图12是图11中升级单元202的一种功能结构示意图；
图13是本发明又一实施例提供的胎压传感器的硬件结构图。
具体实施方式
以下结合附图及实施例，对本发明进行进一步的详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
本发明实施例旨在解决现有胎压传感器由于胎压监测模块自身原因只能有线编程升级的问题。其中胎压监测模块一般是胎压监测芯片。具体地，在胎压传感器中集成编程升级模块，首先传感器获取编程升级文件，然后将编程升级文件存放在准备存储单元内，当保存结束后，通知编程升级模块读取存储单元中的编程升级文件，然后对传感器的胎压监测模块进行编程升级。编程升级模块选用低性能的元器件就可以满足系统要求，成本不会增加很多，但是实现了无线升级，有效解决了编成升级效率低，操作复杂带有安全隐患等问题。
首先介绍本申请实施例涉及的一种应用场景。
胎压传感器可以通过胎压监测模块来测量轮胎压力、温度、加速度等信息。通常胎压监测模块在启动后或者在工作时，配置在胎压监测模块中的存储模块，如FLASH等不允许被擦写，胎压监测模块只有在升级模式下，才允许其中的FLASH被擦写，在此情况下，胎压传感器通过信号接收模块接收到的升级文件无法写入胎压监测模块中，进而无法实现对胎压监测模块进行升级。胎压传感器需要通过外部装置触发胎压监测模块进入升级模式，这有可能需要通过外部装置与胎压传感器有线连接实现，或者通过将胎压传感器从车辆上卸载下来后，外部装置再触发胎压监测模块进入升级模式实现。而这些实现方式，均导致对胎压传感器的升级操作复杂化。
基于上述应用场景，本申请实施例提供了一种胎压传感器和一种胎压监测模块的升级方法。
参阅图13，图13是本申请实施例提供的一种胎压传感器的结构图。如图13所示，该胎压传感器包括信号接收模块1301、存储器1302、编程升级模块1303和胎压监测模块1304。
其中，所述信号接收模块1301可以为无线接收模块，其可以利用无线网络实现与外部终端通信。其中，外部装置可以是对胎压传感器的编程装置，如汽车诊断设备、胎压专用工具、胎压编程工具等装置，在此不予限定。信号接收模块1301可以是低频接收模块，其用于基于与外部终端的通信协议，接收携带有升级文件的低频信号。信号接收模块1301可以由无线通信接口等装置实现，在此不予限定。
其中，所述存储器1302与信号接收模块1301连接，可以用于保存信号接收模块1301接收到的升级文件。存储器可以是易失性存储器(英文：volatile memory)，例如随机存取存储器(英文：random-access memory，缩写：RAM)，如静态随机存取存储器(英文：static random-access memory，缩写：SRAM)，双倍数据率同步动态随机存取存储器(英文：Double Data Rate Synchronous Dynamic Random Access Memory，缩写：DDR SDRAM)等。存储器可以是非易失性存储器(英文：non-volatile memory)，例如快闪存储器(英文：flash memory)，硬盘(英文：hard disk drive，缩写：HDD)或固态硬盘(英文： solid-state drive，缩写：SSD)、电可擦可编程只读存储器(Electrically Erasable Programmable read only memory，EEPROM)等。
编程升级模块1303可以分别与信号接收模块1301和存储器1302连接。其中，信号接收模块1301可以在数据接收完成，并保存至存储器1302后，向编程升级模块1303发送触发信号，以触发编程升级模块1303读取所述存储器1302中的升级文件，并根据该升级文件对胎压监测模块1304进行升级。其中，编程升级模块1303可以由控制器、处理器等装置实现。
胎压监测模块1304可以与编程升级模块1303连接。胎压监测模块1304可以在编程升级模块的控制下，进入启动模式，进而，编程升级模块1303可以实现对胎压监测模块1304进行升级。其中，胎压监测模块1304可以由胎压监测芯片等实现。
需要说明的是，上述模块所实现的本申请实施例中的方法，可以由上述模块中的硬件结合软件实现，即硬件通过运行软件，以实现本申请实施例中的方法，在此不予限定。
通过在胎压传感器中配置编程升级模块和存储器，可以实现将信号接收模块接收到的升级文件进行保存，并可以实现触发胎压监测模块进入启动模式，进而实现根据保存的升级文件对胎压监测模块进行升级。从而可以实现胎压传感器的无线升级，简化了对胎压传感器的升级操作。
下面基于上述胎压传感器的结构，对本申请实施例提供的方法进行描述。
参阅图1，图1为本发明实施例的一种胎压监测模块的升级方法的流程示意图。胎压监测模块的升级方法应用于胎压传感器，该实施例包括：
步骤S100、信号接收模块接收升级文件，并保存所述升级文件。
具体实施时，胎压传感器中的信号接收外部装置发送的模块接收升级文件，信号接收模块为低频接收模块，例如，低频电感等，升级文件可通过低频传输至胎压传感器的低频接收模块；在其它的一些实施例中，升级文件也可通过其他信道传输至胎压传感器。其中升级文件可来自于外部装置，或是胎压传感器与一云端服务器连接，云端服务器监测到胎压监测模块有新的升级文件更新时，向胎压传感器传输升级文件。胎压传感器获取到升级文件后保存。一般的可预先设置保存的位置。
升级文件一般为编程升级文件。编程升级文件为离线更新包，这些离线更新包是指安装程序，安装的程序对应的安装内容是更新的部分，没有变化的文件直接用已经安装的版本。编程升级文件还会修改一些系统配置的以适应新版本的功能。以下实施例中以升级文件为编程升级文件进行说明。
步骤S200、信号接收模块保存所述升级文件后，向编程升级模块发送触发信号；
编程升级模块接收到所述触发信号后，控制胎压监测模块进入升级模式；
编程升级模块从存储器中读取所述升级文件，根据所述升级文件对处于所述升级模式下的胎压监测模块进行升级。
一种实现方式中，升级文件可以包括多个升级包，信号接收模块可以依次接收升级文件的升级包，并将其保存至存储器中，直至升级文件的所有升级包保存完成，可以向编程升级模块发送触发信号。其中，该触发信号可以用于触发编程升级模块控制胎压监测模块进入升级模式。
可选地，该触发信号可以为唤醒信号。编程升级模块在通常情况下可以处于睡眠模式，当编程升级模块接收到唤醒信号后，进入工作模式，进而可以实现控制胎压监测模块。通过这种方式，可以节省胎压传感器的功耗。
可选地，信号接收模块可以通过中断、消息队列等方式向编程升级模块发送触发信号，在此不予限定。
编程升级模块在接收到触发信号后，可以控制胎压监测模块进入升级模式(即升级状态)。例如，通过向胎压监测模块发送升级信号的形式，控制胎压监测模块进入升级模式。在此，也可以理解为唤醒胎压监测模块，具体的唤醒胎压监测模块是指将胎压监测模块从监测胎压的状态转换为升级状态，胎压监测模块唤醒完成后，编程升级模块可以读取胎压传感器中保存的升级文件，并根据升级文件对胎压监测模块进行编程升级，从而实现胎压监测模块无线升级。
可选地，一种实现方式中，若胎压监测模块需要在断电的状态下，才能够实现进入升级模式(即升级状态)，编程升级模块控制胎压监测模块进入升级模式可以首先通过控制胎压监测模块断电，在此情况下，可以向胎压监测模块 发送升级信号，以使胎压监测模块进入升级模式。即胎压监测模块在断电的状态下，可以支持编程升级模块对其配置的FLASH或其他存储单元进行擦写操作。
进一步地，编程升级模块在对胎压监测模块升级结束后，可以控制胎压监测模块进行通电。
可选地，参阅图2，图2为本发明又一实施例提供的一种胎压监测模块的升级方法的流程示意图。除图1中的步骤S100和步骤S200之外，步骤S200之后还包括：
步骤S300、当检测到所述胎压监测模块升级完成后，所述编程升级模块进入睡眠模式。
具体实施时，当检测到胎压监测模块升级完成，编程升级模块可以自动进行睡眠模式，保证了胎压传感器的低功耗。
可选地，参阅图3，图3为图1中步骤S100的一种流程示意图。如图3所示，步骤S100之后，方法还包括：
步骤S101、所述信号接收模块从接收到的数据中检测到预设的升级标识，确定所述接收到的数据为升级文件；步骤S102、所述信号接收模块确定所述升级文件接收完成后，获取并保存所述升级文件的文件大小。
具体实施时，传感器主要工作是监测轮胎内部状态，编程升级是其中一种功能，因此要预先设置标识区分不同的功能。即信号接收模块通过预设标识来区分升级文件和其他数据，例如，其他数据可以是外部设备发送至胎压监测装置的激活信号，进而可以激活胎压监测装置；或者，其他数据可以是与外部装置与胎压监测模块之间的交互数据，等等。信号接收模块从接收到的数据中检测到预设的升级标识后，即可确定接收到的数据为升级数据。或者，信号接收模块首先接收标识，并确定该标识为升级标识后，开始接收编程升级文件。编程升级文件有可能比较大，需要分包传输保存，需要保存多次，当编程升级文件传输保存完成后，在存储单元特定地址写入编程升级文件大小，方便判断编程升级操作是否结束。
进一步地，编程升级模块还可以根据写入的升级文件的大小，读取升级文件。
例如，编程升级模块可以根据写入的升级文件的大小，从存储器中读取出完整或部分升级文件。
举例说明，编程升级模块可以进一步确定胎压监测模块的一次可升级数据量，并根据该一次可升级数据量和升级文件的大小，确定读取次数，并根据读取次数，依次读取所述升级文件中的升级数据。
具体地，编程升级模块可以一次读取升级文件中大小为可升级数据量的升级数据，并对胎压监测模块进行升级，在升级结束后，再读取升级文件中相同大小的升级数据，并对胎压监测模块进行升级，直至胎压监测模块升级结束。
可选地，参阅图4，图4为图3中步骤S101的一种实现方式的流程示意图。如图4所示，步骤S101包括：
步骤S111、当检测到预设的升级标识，所述信号接收模块接收所述升级文件；
可选地，该步骤还可以通过以下方式替代：
信号接收模块在接收的数据中检测是否有预设的升级标识，若有预设的升级标识，则确定接收的数据为升级数据。
步骤S112、对接收的所述升级文件进行校验，若校验通过，则保存数据，若校验失败，则回复校验错误，请求重发。
具体实施时，只有监测到预设的编程升级标识后，控制信号接收模块开始接收编程升级文件。传输编程升级文件时每包数据添加数据校验(如CRC32)，胎压监测模块收到数据按照约定的算法进行校验，校验通过，保存数据，否则，回复校验错误，要求重发。最后一包数据包含整个编程升级文件的数据校验，为胎压传感器校验判断。
可选地，参阅图5，图5为图1中步骤S200的一种实现方式的流程示意图。如图5所示，步骤S200包括：
步骤S201、编程升级模块控制所述胎压监测模块进入升级模式；
步骤S202、编程升级模块根据所述升级文件大小读取保存的所述升级文件，根据所述升级文件对所述胎压监测模块进行升级。
本申请实施例的具体描述方式可以参见上述实施例，在此不予赘述。
可选地，参阅图6，图6为图5中步骤S202的一种实现方式的流程示意图。如图6所示，步骤S202包括：
步骤S221、所述编程升级模块判断所述升级文件是否有效；若确定所述升级文件有效，所述编程升级模块根据所述升级文件对处于所述升级模式下的所述胎压监测模块进行升级。
步骤S222、当升级结束时，所述编程升级模块判断所述胎压监测模块是否升级成功；若未升级成功，所述编程升级模块根据所述升级文件，重新对所述胎压监测模块进行升级。
步骤S223、若所述升级文件无效，升级结束。
具体实施时，编程升级模块对胎压监测模块进行升级前，可以判断升级文件是否有效，即进行有效性检查，对整个编程升级文件进行检验，校验通过，才进行编程升级操作，否则，直接退出，放弃编程升级。
进一步地，当升级结束时，编程升级模块可以判断胎压监测模块是否升级成功，即根据胎压监测模块中根据升级文件进行更新的数据或文件的校验结果，来判断胎压监测模块是否升级成功。若校验通过，则标志编程升级完成，否则编程升级模块可以对胎压监测模块重新编程升级。
下面基于一种应用场景介绍本申请实施例提供的升级方法。
以现有的SP37胎压监测芯片为例进行介绍，升级方法的具体实施方式。其中预先进行以下定义：SP37：一种胎压监测芯片的型号，由英飞凌(Infineon)公司生产；LF(Low Frequency):低频；PP0(Port Pin I/O 0):输入/输出接口引脚0；PP1(Port Pin I/O 1):输入/输出接口引脚1。
SP37胎压监测芯片存在上述应用场景下的升级缺陷。在编程升级前，首先要进入编程升级模式，具体操作为：(1)断开电源，PP0和PP1设置成逻辑0，保持1秒钟；(2)PP0设置成逻辑0，PP1设置成逻辑1，接通电源，保持状态1秒钟。在SP37编程升级完成后，也要通过一系列操作退出编程升级模式，具体操作为：(1)PP0和PP1设置成逻辑1，保持1秒钟；(2)断开电源，PP0和PP1设置成逻辑0，保持1秒钟；(3)接通电源，PP0和PP1设置成逻辑1，保持1秒钟。
SP37进入编程升级模式和退出编程升级模式，都需要对其断电操作， 这是SP37芯片自身不能完成。
利用本申请实施例可以在传感器内部配置一个编程升级模块，对SP37进行模式切换以及编程升级操作。SP37通过自身的LF接收编程升级文件，保存在传感器所配置的存储器中，以保证SP37芯片断电后，升级文件不会丢失。接收完成后通知编程升级模块进行编程升级，编程升级模块先将SP37切换到编程升级模式，进行编程升级，等到编程升级结束后，再将SP37退出升级模式，编程升级模块进入睡眠模式，保证低功耗。
参阅图7，图7是本发明实施例提供的一种胎压监测模块的升级装置的功能结构示意图。胎压监测模块的升级装置应用于设置有信号接收模块的胎压传感器，如图7所示，装置包括：
升级文件获取模块100，用于控制信号接收模块接收升级文件，并保存所述升级文件；
升级控制模块200，用于唤醒胎压监测模块，控制所述胎压监测模块读取保存的所述升级文件，根据所述升级文件对胎压监测模块进行升级。
具体实施时，胎压传感器中的信号接收模块获取升级文件，信号接收模块为低频接收模块，例如，低频电感等，升级文件可通过低频传输至胎压传感器的低频接收模块；在其它的一些实施例中，升级文件，也可通过其他信道传输至胎压传感器。其中升级文件可来自于其他智能终端，或是胎压传感器与一云端服务器连接，云端服务器监测到胎压监测模块有新的升级文件更新时，向胎压传感器传输升级文件。胎压传感器获取到升级文件后保存。一般的可预先设置保存的位置。升级文件一般为编程升级文件。编程升级文件为离线更新包，这些离线更新包是指安装程序，安装的程序对应的安装内容是更新的部分，没有变化的文件直接用已经安装的版本。编程升级文件还会修改一些系统配置的以适应新版本的功能。以下实施例中以升级文件为编程升级文件进行说明。
获取到升级文件后，唤醒胎压监测模块，具体的唤醒胎压监测模块是指将胎压监测模块从监测胎压的状态转换为升级状态，胎压监测模块唤醒完成后，获取胎压传感器中保存的升级文件并读取，根据升级文件对胎压监测模块进行编程升级，从而实现胎压监测模块无线升级。
可选地，参阅图8，图8是本发明又一实施例提供的一种胎压监测模块的 升级装置的功能结构示意图。如图8所示，装置还包括：
睡眠模式控制模块300，用于当检测到所述胎压监测模块升级完成后，控制所述胎压传感器进入睡眠模式。
具体实施时，当检测到胎压监测模块升级完成，控制胎压传感器自动进行睡眠模式，保证了胎压传感器的低功耗。
可选地，参阅图9，图9是图7中升级文件获取模块100的一种功能结构示意图。如图9所示，升级文件获取模块100包括：
监测与接收单元101，用于监测到预设的升级标识，则控制所述信号接收模块接收所述升级文件并保存；
文件大小获取与保存单元102，用于当检测到所述升级文件传输完成后，获取所述升级文件的文件大小并保存。
具体实施时，传感器主要工作是监测轮胎内部状态，编程升级是其中一种功能，因此要预先设置标识区分不同的功能。只有监测到预设的编程升级标识后，控制信号接收模块开始接收编程升级文件。编程升级文件有可能比较大，需要分包传输保存，需要保存多次，当编程升级文件传输保存完成后，在存储单元特定地址写入编程升级文件大小，方便判断编程升级操作是否结束。
可选地，参阅图10，图10是图9中监测与升级单元101的一种功能结构示意图。如图10所示，监测与接收单元101包括：
监测单元111，用于当监测到预设的升级标识，则控制所述信号接收模块接收所述升级文件；
第一校验单元112，用于对接收的所述升级文件进行校验，若校验通过，则保存数据，若校验失败，则回复校验错误，请求重发。
具体实施时，只有监测到预设的编程升级标识后，控制信号接收模块开始接收编程升级文件。传输编程升级文件时每包数据添加数据校验(如CRC32)，胎压监测模块收到数据按照约定的算法进行校验，校验通过，保存数据，否则，回复校验错误，要求重发。最后一包数据包含整个编程升级文件的数据校验，为胎压传感器校验判断。
可选地，参阅图11，图11是图7中升级控制模块200的一种功能结构示意图。如图11所示，升级控制模块200包括：
唤醒单元201，用于接收到有效的升级唤醒信号后，唤醒所述胎压监测模块，控制所述胎压监测模块进入升级模式；
升级单元202，用于根据所述升级文件大小读取保存的所述升级文件，根据所述升级文件对所述胎压监测模块进行升级。
具体实施时，升级文件接收结束，且升级文件传输正常，则胎压传感器发出有效的升级唤醒信号后，唤醒胎压监测模块，其中升级唤醒信号为胎压传感器发出的特定编程升级通知，并且编程升级文件有效，则进行接下来的编程升级操作，否则，直接进入睡眠模式，退出编程升级模式。编程升级操作，先对胎压监测模块进行初始化，使胎压监测模块进入编程升级模式，允许外部对其进行编程升级，接下来读取保存在存储单元中的编程升级文件大小，如果文件大小大于胎压监测模块一次可编程升级大小，需要分包多次编程升级。编程升级完成后，胎压传感器进入睡眠模式，保证低功耗。
可选地，参阅图12，图12是图11中升级单元202的一种功能结构示意图。如图12所示，升级单元202包括：
第二校验单元221，用于根据所述升级文件大小读取保存的所述升级文件，并对所述升级文件进行校验；
第一升级控制单元222，用于若所述升级文件校验通过，根据所述升级文件对所述胎压监测模块启动升级操作，当升级结束时，对所述胎压监测模块的升级结果进行校验，若升级结果校验通过，则升级完成，若升级结果校验失败，则对所述胎压监测模块重新进行升级操作；
第二升级控制单元223，用于若所述升级文件校验失败，升级结束。
具体实施时，编程前进行有效性检查，对整个编程升级文件进行检验，校验通过，才进行编程升级操作，否则，直接退出，放弃编程升级。编程升级文件更新结束时，对胎压监测模块擦写区域进行校验，校验通过，则标志编程升级完成，否则胎压监测模块重新编程升级。
需要说明的是，上述功能单元可以由图13中的模块或模块组合实现。在此不予限定。
以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的 单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际需要选择其中的部分或者全部模块来实现本实施例方案的目的。
通过以上的实施例的描述，本领域的技术人员可以清楚地了解到各实施例可借助软件加通用硬件平台的方式来实现，当然也可以通过硬件实现。基于这样的理解，上述技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存在于计算机可读存储介质中，如ROM/RAM、磁碟、光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行各个实施例或者实施例的某些部分所述的方法。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (16)

  1. 一种胎压监测模块的升级方法，应用于胎压传感器，其特征在于，所述胎压传感器包括信号接收模块、胎压监测模块、编程升级模块和存储器，其特征在于，包括：所述信号接收模块无线接收升级文件，将所述升级文件保存至所述存储器中；
    所述信号接收模块保存所述升级文件后，向所述编程升级模块发送触发信号；
    所述编程升级模块接收到所述触发信号后，控制所述胎压监测模块进入升级模式；
    所述编程升级模块从所述存储器中读取所述升级文件，根据所述升级文件对处于所述升级模式下的所述胎压监测模块进行升级。
  2. 根据权利要求1所述的方法，其特征在于，所述触发信号为唤醒信号，用于唤醒处于睡眠模式下的所述编程升级模块。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：所述信号接收模块从接收到的数据中检测到预设的升级标识，确定所述接收到的数据为升级文件；
    所述信号接收模块确定所述升级文件接收完成后，获取并保存所述升级文件的文件大小；
    所述编程升级模块读取所述升级文件，包括：
    所述编程升级模块根据所述升级文件的文件大小，读取所述升级文件。
  4. 根据权利要求3所述的方法，其特征在于，所述编程升级模块根据所述升级文件的文件大小，读取所述升级文件，包括：
    所述编程升级模块根据所述升级文件的文件大小，以及所述胎压监测模块的一次可升级数据量，确定读取次数，并根据所述读取次数，依次读取所述升级文件中的升级数据。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述编程升级模块控制所述胎压监测模块进入升级模式，包括：
    所述编程升级模块控制所述胎压监测模块断电；
    所述编程升级模块向所述胎压监测模块发送升级信号，以使所述胎压监测模块进入所述升级模式。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述方法还包括：
    所述编程升级模块判断所述升级文件是否有效；
    所述编程升级模块根据所述升级文件对处于所述升级模式下的所述胎压监测模块进行升级，包括：
    若确定所述升级文件有效，所述编程升级模块根据所述升级文件对处于所述升级模式下的所述胎压监测模块进行升级。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，所述方法还包括：
    所述编程升级模块判断所述胎压监测模块是否升级成功；
    若未升级成功，所述编程升级模块根据所述升级文件，重新对所述胎压监测模块进行升级。
  8. 根据权利要求1-7任一项所述的方法，其特征在于，所述方法还包括：
    所述编程升级模块对所述胎压监测模块进行升级后，进入睡眠模式。
  9. 一种胎压传感器，其特征在于，包括：
    信号接收模块，与所述信号接收模块连接的存储器，分别于所述信号接收模块与所述存储器连接的编程升级模块，以及与所述编程升级模块连接的胎压监测模块；
    其中，所述信号接收模块用于无线接收升级文件，将所述升级文件保存至所述存储器中；
    所述信号接收模块用于保存所述升级文件后，向所述编程升级模块发送触发信号；
    所述编程升级模块用于接收到所述触发信号后，控制所述胎压监测模块进入升级模式；
    所述编程升级模块用于从所述存储器中读取所述升级文件，根据所述升级文件对处于所述升级模式下的所述胎压监测模块进行升级。
  10. 根据权利要求9所述的胎压传感器，其特征在于，所述触发信号为唤醒信号，用于唤醒处于睡眠模式下的所述编程升级模块。
  11. 根据权利要求9或10所述的胎压传感器，其特征在于，
    所述信号接收模块用于从接收到的数据中检测到预设的升级标识，确定所述接收到的数据为升级文件；
    所述信号接收模块用于确定所述升级文件接收完成后，获取并保存所述升级文件的文件大小；
    所述编程升级模块具体用于：
    根据所述升级文件的文件大小，读取所述升级文件。
  12. 根据权利要求11所述的胎压传感器，其特征在于，所述编程升级模块具体用于：
    根据所述升级文件的文件大小，以及所述胎压监测模块的一次可升级数据量，确定读取次数，并根据所述读取次数，依次读取所述升级文件中的升级数据。
  13. 根据权利要求9-12任一项所述的胎压传感器，其特征在于，所述编程升级模块具体用于：
    控制所述胎压监测模块断电；
    向所述胎压监测模块发送升级信号，以使所述胎压监测模块进入所述升级模式。
  14. 根据权利要求9-13任一项所述的胎压传感器，其特征在于，
    所述编程升级模块用于判断所述升级文件是否有效；
    所述编程升级模块具体用于：
    若确定所述升级文件有效，根据所述升级文件对处于所述升级模式下的所述胎压监测模块进行升级。
  15. 根据权利要求9-14任一项所述的胎压传感器，其特征在于，
    所述编程升级模块用于判断所述胎压监测模块是否升级成功；
    若未升级成功，所述编程升级模块用于根据所述升级文件，重新对所述胎压监测模块进行升级。
  16. 根据权利要求9-15任一项所述的胎压传感器，其特征在于，
    所述编程升级模块用于对所述胎压监测模块进行升级后，进入睡眠模式。
PCT/CN2018/094540 2017-07-25 2018-07-04 胎压监测模块的升级方法及其装置、胎压传感器 Ceased WO2019019889A1 (zh)

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