CN102862450B - System and method for realizing upgrading of transmitting terminal of tire pressure monitoring system (TPMS) based on wireless communication - Google Patents

System and method for realizing upgrading of transmitting terminal of tire pressure monitoring system (TPMS) based on wireless communication Download PDF

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Publication number
CN102862450B
CN102862450B CN201210298979.6A CN201210298979A CN102862450B CN 102862450 B CN102862450 B CN 102862450B CN 201210298979 A CN201210298979 A CN 201210298979A CN 102862450 B CN102862450 B CN 102862450B
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tpms
upgrading
terminal
upgrade
launch terminal
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CN201210298979.6A
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CN102862450A (en
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刘均
杨勇
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深圳市元征科技股份有限公司
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Abstract

The invention discloses a system and a method for realizing the upgrading of a transmitting terminal of a tire pressure monitoring system (TPMS) based on wireless communication. By performing wireless upgrading on the transmitting terminal of the TPMS, the transmitting terminal of the TPMS is matched with the transmitting terminals of different vehicle types and different TPMS communication protocols, the aim of the universality of the transmitting terminal of the conventional TPMS is fulfilled, and the replacement cost of the transmitting terminal is reduced. Compared with the prior art, the system and the method are simple and practical; by upgrading the transmitting terminal of a universal TPMS, the data of the transmitting terminal of the TPMS of any vehicle type can be matched; moreover, the system can be compatible with the TPMS systems of most vehicles on the market, and can be used in after-sale repair in large scale; and the original transmitting terminal is directly replaced by using the identification (ID) number or the sequence number of the original terminal without modifying any electronic control unit (ECU) data of the original vehicle, so that a tire pressure terminal is replaced easily and conveniently, and the system and the method have a huge commercial value.

Description

A kind of system and method realizing the upgrading of general TPMS launch terminal based on wireless telecommunications connection

Technical field

The present invention relates to monitoring automobile tyre pressure technology, what be specifically related to is a kind of system and method realizing the upgrading of general TPMS launch terminal based on wireless telecommunications connection.

Background technology

TPMS (Tire Pressure Monitoring System) i.e. Tire Pressure Monitoring System, be mainly used in carrying out Real-Time Monitoring to the pressure and temperature of motor tire inside, and report to the police when inside tires situation is abnormal, remind chaufeur, avoid accident to occur.TPMS system is divided into indirect type and direct-type two kinds.Direct-type TPMS system by installing a built-in sensors on the tire dice of tire, sensor comprises the bridge type electron gas pressure induction installation of induction air pressure, air pressure signal is converted to electric signal by it, by wireless launcher, signal is emitted, to realize under driving or static state, the pressure of real time monitoring tire, the data such as temperature, and be wirelessly transmitted into receptor, show various data variation over the display or with forms such as buzzings, remind motorist, and exceed Secure Threshold (this threshold value sets by telltale) time at tire flat and pressure change and report to the police, with guarantee driving safety.The actual wink that can measure each inside tires due to immediate system at any time presses, and is easy to determine fault tire, has the advantages that accuracy rate is high, therefore apply comparatively extensive.

In the automobile that each car production manufacturer of Present Global produces, TPMS system mainly adopts 315MHz/433MHz, the modulation system of ASK and FSK.Due to the communication frame format difference to some extent of each auto vendor TPMS system, TPMS launch terminal is so just caused to there is coupling poor compatibility, problem that cannot be general, therefore the launch terminal of TPMS has more than tens kinds on the market, and each other can not be general mutually, if the TPMS launch terminal be arranged in motor tire damages, same brand or of a sort launch terminal just must be changed, otherwise cannot use, the replacement cost of user will be caused like this to increase.

Summary of the invention

For this reason, the object of the present invention is to provide a kind of system and method realizing the upgrading of general TPMS launch terminal based on wireless telecommunications connection, to solve current TPMS launch terminal coupling poor compatibility, cannot be general, the problem that replacement cost is high.

The object of the invention is to be achieved through the following technical solutions.

Connect the system realizing the upgrading of general TPMS launch terminal based on wireless telecommunications, comprising:

One upgrading main frame, central process unit, memory device and main frame radio upgrade interface unit is provided with in this upgrading main frame, this main frame radio upgrade interface unit comprises main frame low frequency cell and main frame radio frequency unit, described memory device is connected with main frame radio upgrade interface unit by central process unit, and stores the upgrade data of various vehicle in this memory device;

One TPMS launch terminal, comprise micro-control unit, main memory unit, standby memory cell, ROMPaq processing unit and terminal wireless upgrade interface unit, this terminal wireless upgrade interface unit comprises terminal low frequency cell and terminal radio frequency unit, and described main memory unit, standby memory cell, ROMPaq processing unit are connected with terminal wireless upgrade interface unit by micro-control unit;

The main frame low frequency cell of described upgrading main frame and the terminal low frequency cell wireless connections of TPMS launch terminal, main frame radio frequency unit is connected with the terminal radio frequency unit wireless of TPMS launch terminal, upgrading main frame sends upgrade request instruction to the terminal low frequency cell of TPMS launch terminal by main frame low frequency cell, TPMS launch terminal judges whether to need upgrading according to this upgrade request instruction, and feed back to main frame radio frequency unit when needs are upgraded by terminal radio frequency unit, request upgrading main frame sends upgrade data, upgrading main frame sends upgrade data by the wireless connections between main frame low frequency cell and terminal low frequency cell, after upgrade data is transmitted, upgrade data is stored in standby memory cell by micro-control unit, then main memory unit is copied to, and by ROMPaq processing unit, verification confirmation is carried out to the upgrade data in main memory unit.

Preferably, the upgrade data stored in described upgrading mainframe memory comprises the TPMS communication protocol of various automobile and No. ID of first wife's launch terminal or sequence number.

Preferably, described TPMS launch terminal also includes a reset unit be connected with micro-control unit, carries out system reset by this reset unit to TPMS launch terminal.

In addition, present invention also offers a kind of method realizing the upgrading of general TPMS launch terminal based on wireless telecommunications connection, comprise step:

A, main frame radio upgrade interface unit send upgrade request instruction to terminal low frequency cell;

According to above-mentioned upgrade request instruction, B, micro-control unit judge that TPMS launch terminal is the need of upgrading, if do not needed, then terminates; If needed, then enter step C;

The central process unit of C, upgrading main frame sends upgrade data by main frame radio upgrade interface unit to TPMS launch terminal;

D, ROMPaq processing unit carry out verification to the upgrade data in main memory unit and confirm, confirm, by rear, to exit ROMPaq, carry out system reset by reset unit to TPMS launch terminal.

Preferably, steps A specifically comprises:

The central process unit of upgrading main frame sends the terminal low frequency cell of upgrade request instruction to TPMS launch terminal by the main frame low frequency cell in main frame radio upgrade interface unit, is waken up after the terminal low frequency cell of TPMS launch terminal receives this upgrade request instruction.

Preferably, step B specifically comprises:

Include the TPMS communication protocol information that needs are upgraded in upgrade request instruction, the TPMS communication protocol information after the TPMS communication protocol information of current TPMS launch terminal and upgrading compares by micro-control unit, if unanimously, does not then need upgrading; If inconsistent, then need upgrading, micro-control unit correspondence produces request upgrade information, feeds back to main frame radio frequency unit by terminal radio frequency unit.

Preferably, step C specifically comprises:

The central process unit of upgrading main frame, by the terminal low frequency cell transmission upgrade data of the main frame low frequency cell in main frame radio upgrade interface unit to TPMS launch terminal, includes No. ID or sequence number of the TPMS communication protocol information after upgrading and first wife's launch terminal in this upgrade data.

Preferably, also comprise between step C and D:

Upgrading main frame and the every frame upgrade data of TPMS launch terminal process, and automatically verification is deciphered to upgrade data, the upgrade data received is kept in standby memory cell by TPMS launch terminal, and copies to main memory unit from standby memory cell.

The system and method realizing the upgrading of general TPMS launch terminal based on wireless telecommunications connection provided by the invention, by carrying out radio upgrade to being arranged on and not being arranged on general TPMS launch terminal in motor tire, TPMS launch terminal is mated from the launch terminal of different automobile types and different TPMS communication protocol, achieve the object that current TPMS launch terminal is general, reduce the replacement cost of launch terminal.Compared with prior art, the present invention is simple and practical, by general TPMS launch terminal of upgrading, the data of the TPMS launch terminal of any vehicle can be mated, and the present invention can the TPMS system of most vehicle on compatible market, after-sales service can be used in a large number, use No. ID or sequence code of first wife's terminal, directly replace original launch terminal, do not need the data revising any former car ECU, make replacing tire pressure terminal simple and convenient, there is huge commercial value.

Accompanying drawing explanation

Fig. 1 is system principle diagram of the present invention.

Detailed description of the invention

In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

Refer to shown in Fig. 1, Fig. 1 is system principle diagram of the present invention.The invention provides and a kind ofly connect the system realizing the upgrading of general TPMS launch terminal based on wireless telecommunications, being mainly used in solving current different automotive type TPMS launch terminal cannot general, coupling poor compatibility and the high problem of replacement cost.

Wherein this system includes: upgrading main frame and TPMS launch terminal, central process unit, memory device and main frame radio upgrade interface unit is provided with in described upgrading main frame, this main frame radio upgrade interface unit comprises main frame low frequency cell and main frame radio frequency unit, main frame low frequency cell is used for main frame and sends upgrade data to TPMS launch terminal, main frame radio frequency unit is used for receiving TPMS launch terminal in escalation process and feeds back to the reply of main frame, and low frequency refers to 125KHZ herein, radio frequency refers to 315/433MHZ; Described memory device is connected with the main frame low frequency cell of main frame radio upgrade interface unit and main frame radio frequency unit respectively by central process unit, and storing upgrade data in this memory device, described upgrade data comprises the TPMS communication protocol of various automobile and No. ID of first wife's launch terminal or sequence number.

TPMS launch terminal, this launch terminal is universal launch terminal, especially for the TPMS launch terminal of luxurious superior automobile, its Costco Wholesale is lower, this launch terminal includes micro-control unit, main memory unit, standby memory cell, ROMPaq processing unit, power supply unit, data sampling unit, reset unit and terminal wireless upgrade interface unit, this terminal wireless upgrade interface unit comprises terminal low frequency cell and terminal radio frequency unit, terminal low frequency cell is used for request upgrade command that Receiving Host sends to TPMS launch terminal and upgrade data, terminal radio frequency unit is used for when terminal is determined to need upgrading, to host response feedback request upgrade command, its medium and low frequency refers to 125KHZ, radio frequency refers to 315/433MHZ, described main memory unit, standby memory cell, ROMPaq processing unit, power supply unit, data sampling unit, reset unit are all connected with the terminal low frequency cell in terminal wireless upgrade interface unit and terminal radio frequency unit by micro-control unit.

Wherein power supply unit is used for powering to micro-control unit and other unit, and data sampling unit is used for sampling to the parameter such as tire pressure, temperature of motor tire; The parameter such as tire pressure, temperature that sampling obtains, then for setting up the wireless telecommunications with automobile middle control device, sends by terminal radio frequency unit, and terminal radio frequency unit of the present invention also gives upgrading main frame for feedback terminal the need of the instruction of upgrading simultaneously; Micro-control unit is used for carrying out processing controls to above-mentioned parameter and signal, and sets up upgrading connection, obtains upgrade data; ROMPaq processing unit is used for carrying out upgrading according to the upgrade data obtained to launch terminal and controls, and verifies upgrade data simultaneously; Standby memory cell is used for temporarily storing upgrade data, and under ROMPaq processing unit controls, upgrade data is copied in main memory unit, carry out upgrading processing, after ROMPaq completes, exit ROMPaq, and start reset unit this TPMS launch terminal is resetted, make the TPMS communication protocol in TPMS launch terminal be upgraded to the communication protocol required in advance, this TPMS launch terminal respective upgrades is to No. ID or sequence number of first wife's launch terminal simultaneously.

The upgrading mode of native system is as follows: the central process unit of main frame of first upgrading by the main frame low frequency cell in main frame radio upgrade interface unit send comprise TPMS communication protocol upgrade request instruction to the terminal low frequency cell of TPMS launch terminal, be waken up after the terminal low frequency cell of TPMS launch terminal receives this signal, and this upgrade request instruction is sent to micro-control unit, the TPMS communication protocol comprised in TPMS communication protocol current adopted for TPMS launch terminal and upgrade request instruction compares by micro-control unit, if the two is consistent, can compatiblely use both then representing, only need to obtain corresponding first wife's Termination ID number or sequence number from upgrading main frame, do not need upgrading, if the two is inconsistent, then represent and need upgrading, and the corresponding request of producing sends the feedback information of upgrade data, fed back to the main frame radio frequency unit of upgrading main frame by the mode of radio communication by terminal radio frequency unit, and the corresponding feedback command that produces is to upgrading host cpu, central process unit is corresponding wirelessly sends to TPMS launch terminal by the information including TPMS communication protocol and first wife's Termination ID number or sequence number, 125KHZ main frame low frequency cell is utilized to launch, receive by the terminal low frequency cell of TPMS launch terminal, and while ROMPaq processing unit in TPMS launch terminal obtains upgrade data, upgrading main frame and ROMPaq processing unit carry out deciphering automatically to every frame upgrade data and verify and apply for whether retransmitting, after data transmission to be upgraded completes, temporarily be stored in standby memory cell, then main memory unit is copied to, ROMPaq processing unit carries out verification to the upgrade data in main memory unit and confirms, when confirmation by after, carry out updating operation, the TPMS communication protocol comprised in upgrade data and first wife's Termination ID number or sequence number are written in main memory unit, complete ROMPaq, then by reset unit, system reset is carried out to TPMS launch terminal afterwards, this TPMS launch terminal is made to carry out work with the TPMS communication protocol after upgrading and first wife's Termination ID number or sequence number.

After above-mentioned escalation process completes, TPMS launch terminal correspondence can be arranged in the motor tire needing to change launch terminal, and general TPMS launch terminal also can first be arranged in motor tire by the present invention, by the way radio upgrade is being carried out to TPMS launch terminal afterwards.

Universal TPMS launch terminal described in native system can the TPMS system of the various different automobile types of compatible coupling, for changing at present the cost of luxurious superior automobile TPMS launch terminal thousands of unit easily, has price advantage, it needs universal for the present invention TPMS launch terminal respective upgrades to the TPMS communication protocol of specifying, No. ID of corresponding first wife's terminal or sequence number are written to launch terminal, whole process is simple and convenient simultaneously.

Being more than connect to the present invention is based on wireless telecommunications the explanation of system realizing the upgrading of general TPMS launch terminal, connecting the method realizing the upgrading of general TPMS launch terminal be further described to the present invention is based on wireless telecommunications below.

Present invention also offers a kind of method realizing the upgrading of general TPMS launch terminal based on wireless telecommunications connection, it is as follows that it specifically comprises step:

Present invention also offers a kind of method realizing the upgrading of general TPMS launch terminal based on wireless telecommunications connection, comprise step:

A, main frame radio upgrade interface unit send upgrade request instruction to terminal low frequency cell;

The central process unit of upgrading main frame sends the terminal low frequency cell of upgrade request instruction to TPMS launch terminal by the main frame low frequency cell in main frame radio upgrade interface unit, be waken up after the terminal low frequency cell of TPMS launch terminal receives this upgrade request instruction, and this upgrade request instruction correspondence is sent to the micro-control unit of TPMS launch terminal.

Wherein correspondingly in upgrade request instruction here include No. ID or sequence number needing the TPMS communication protocol after specifying upgrading and first wife's terminal.

According to above-mentioned upgrade request instruction, B, micro-control unit judge that TPMS launch terminal is the need of upgrading, if do not needed, then terminates; If needed, then enter step C;

TPMS communication protocol information after the TPMS communication protocol information of current TPMS launch terminal and upgrading compares by micro-control unit, if consistent, then do not need upgrading, only need to be written in main memory unit by ROMPaq processing unit from No. ID of the first wife's terminal in upgrade request instruction or sequence number correspondence; If inconsistent, then need upgrading, micro-control unit correspondence produces request upgrade information, feeds back to main frame radio frequency unit by terminal radio frequency unit.

The central process unit of C, upgrading main frame sends upgrade data by main frame radio upgrade interface unit to TPMS launch terminal;

Upgrading main frame central process unit obtain above-mentioned come from host radio frequency unit feedback information after, then the corresponding main frame radio upgrade interface unit that passes through sends upgrade data to TPMS launch terminal, include No. ID or sequence number of the TPMS communication protocol information after upgrading and first wife's launch terminal in this upgrade data, TPMS launch terminal correspondence obtains upgrade data by terminal low frequency cell.

Wherein when upgrading main frame and the every frame upgrade data of TPMS launch terminal process, need automatically to decipher verification to upgrade data, through automatically decipher verification by after upgrade data keep in standby memory cell, then from standby memory cell, copy to main memory unit by ROMPaq processing unit.

D, ROMPaq processing unit carry out verification to the upgrade data in main memory unit and confirm, confirm, by rear, to exit ROMPaq, carry out system reset by reset unit to TPMS launch terminal.

ROMPaq processing unit carries out verification to the upgrade data in main memory unit and confirms, confirms, by rear, to upgrade, No. ID of required TPMS communication protocol and first wife's terminal or sequence number correspondence is written to main memory unit, completes upgrading.

Upgraded backed off after random ROMPaq, reset unit carries out system reset by micro-control unit to TPMS launch terminal, makes this TPMS launch terminal carry out work with the TPMS communication protocol after upgrading and first wife's Termination ID number or sequence number.

To be upgraded general TPMS launch terminal by mode of the present invention, the data of the TPMS launch terminal of any vehicle can be mated, can the TPMS system of most vehicle on compatible market, can be used in after-sales service in a large number, use No. ID or sequence code of first wife's terminal, directly replace original launch terminal, do not need the data revising any former car ECU, make replacing tire pressure terminal simple and convenient, there is huge commercial value.

Be more than to provided by the present invention a kind of based on wireless telecommunications connect realize general TPMS launch terminal upgrading system and method be described in detail, apply specific case herein to set forth structural principle of the present invention and embodiment, above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (5)

1. connect the method realizing the upgrading of general TPMS launch terminal based on wireless telecommunications, it is characterized in that comprising step:
A, main frame radio upgrade interface unit send upgrade request instruction to terminal low frequency cell;
According to above-mentioned upgrade request instruction, B, micro-control unit judge that TPMS launch terminal is the need of upgrading, if do not needed, then terminates; If needed, then enter step C;
The central process unit of C, upgrading main frame sends upgrade data by main frame radio upgrade interface unit to TPMS launch terminal;
D, ROMPaq processing unit carry out verification to the upgrade data in main memory unit and confirm, confirm, by rear, to exit ROMPaq, carry out system reset by reset unit to TPMS launch terminal.
2. the method realizing the upgrading of general TPMS launch terminal based on wireless telecommunications connection according to claim 1, is characterized in that steps A specifically comprises:
The central process unit of upgrading main frame sends the terminal low frequency cell of upgrade request instruction to TPMS launch terminal by the main frame low frequency cell in main frame radio upgrade interface unit, is waken up after the terminal low frequency cell of TPMS launch terminal receives this upgrade request instruction.
3. the method realizing the upgrading of general TPMS launch terminal based on wireless telecommunications connection according to claim 1, is characterized in that step B specifically comprises:
Include the TPMS communication protocol information that needs are upgraded in upgrade request instruction, the TPMS communication protocol information after the TPMS communication protocol information of current TPMS launch terminal and upgrading compares by micro-control unit, if unanimously, does not then need upgrading; If inconsistent, then need upgrading, micro-control unit correspondence produces request upgrade information, feeds back to main frame radio frequency unit by terminal radio frequency unit.
4. the method realizing the upgrading of general TPMS launch terminal based on wireless telecommunications connection according to claim 1, is characterized in that step C specifically comprises:
The central process unit of upgrading main frame, by the terminal low frequency cell transmission upgrade data of the main frame low frequency cell in main frame radio upgrade interface unit to TPMS launch terminal, includes No. ID or sequence number of the TPMS communication protocol information after upgrading and first wife's launch terminal in this upgrade data.
5. the method realizing the upgrading of general TPMS launch terminal based on wireless telecommunications connection according to claim 1, is characterized in that also comprising between step C and D:
Upgrading main frame and the every frame upgrade data of TPMS launch terminal process, and automatically verification is deciphered to upgrade data, the upgrade data received is kept in standby memory cell by TPMS launch terminal, and copies to main memory unit from standby memory cell.
CN201210298979.6A 2012-08-21 2012-08-21 System and method for realizing upgrading of transmitting terminal of tire pressure monitoring system (TPMS) based on wireless communication CN102862450B (en)

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