CN102862450A - 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 PDFInfo
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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
Technical field
The present invention relates to the monitoring automobile tyre pressure technology, what be specifically related to is a kind of system and method for realizing general TPMS launch terminal upgrading that connects based on wireless telecommunications.
Background technology
TPMS (Tire Pressure Monitoring System) is Tire Pressure Monitoring System, be mainly used in the pressure and temperature of motor tire inside is carried out Real-Time Monitoring, and when the inside tires situation is unusual, report to the police, reminding driver avoids accident to occur.The TPMS system is divided into two kinds of indirect type and direct-type.A built-in sensors is installed by the tire dice at tire by direct-type TPMS system, the bridge type electron gas pressure sensitivity that comprises induction air pressure in the sensor should be installed, it is converted to electric signal with air pressure signal, by wireless launcher signal is emitted, to be implemented under driving or the static state, the pressure of real time monitoring tire, the data such as temperature, and be transmitted into receptor by wireless mode, in the telltale various data variation of demonstration or with forms such as buzzings, remind the motorist, and change at tire flat and pressure and to surpass Secure Threshold (this threshold value can be set by telltale) time and report to the police, with guarantee driving safety.Because immediate system can be measured at any time the actual wink of each inside tires and press, and is easy to determine the fault tire, has the high characteristics of accuracy rate, therefore uses comparatively extensive.
The TPMS system mainly adopts 315MHz/433MHz, the modulation system of ASK and FSK in the automobile that each car production manufacturer of Present Global produces.Because the communication frame format of each TPMS system of auto vendor is difference to some extent, so just cause the TPMS launch terminal to have the coupling poor compatibility, problem that can't 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 that is installed in the motor tire damages, just must change same brand or of a sort launch terminal, otherwise can't use, and will cause like this user's replacement cost to increase.
Summary of the invention
For this reason, the object of the present invention is to provide a kind of system and method based on the general TPMS launch terminal upgrading of wireless telecommunications connection realization, to solve present TPMS launch terminal coupling poor compatibility, can't be general, the problem that replacement cost is high.
The objective of the invention is to be achieved through the following technical solutions.
A kind of system based on the general TPMS launch terminal upgrading of wireless telecommunications connection realization comprises:
One upgrading main frame, be provided with central process unit, memory device and main frame radio upgrade interface unit 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 vehicles 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 terminal low frequency cell wireless connections of the main frame low frequency cell of described upgrading main frame and TPMS launch terminal, the main frame radio frequency unit is connected with the terminal radio frequency unit wireless of TPMS launch terminal, the upgrading main frame sends the upgrade request instruction to the terminal low frequency cell of TPMS launch terminal by the main frame low frequency cell, the TPMS launch terminal judges whether the needs upgrading according to this upgrade request instruction, and when upgrading, needs feed back to the main frame radio frequency unit by the terminal radio frequency unit, request upgrading main frame sends upgrade data, the upgrading main frame sends upgrade data by the wireless connections between main frame low frequency cell and the terminal low frequency cell, after upgrade data is transmitted, micro-control unit is stored in standby memory cell with upgrade data, then copy to main memory unit, and by the ROMPaq processing unit upgrade data in the main memory unit is carried out verification and confirm.
Preferably, the upgrade data of storing in the described upgrading mainframe memory comprises the TPMS of various automobiles communication protocol and first wife's launch terminal ID number or sequence number.
Preferably, described TPMS launch terminal also includes a reset unit that is connected with micro-control unit, by this reset unit the TPMS launch terminal is carried out system reset.
In addition, the present invention also provides a kind of and has connected the method that realizes general TPMS launch terminal upgrading based on wireless telecommunications, comprises step:
A, main frame radio upgrade interface unit send the upgrade request instruction to the terminal low frequency cell;
B, micro-control unit judge the whether needs upgrading of TPMS launch terminal according to above-mentioned upgrade request instruction, if do not need, then finish; If necessary, then enter step C;
The central process unit of C, upgrading main frame sends upgrade data by main frame radio upgrade interface unit to the TPMS launch terminal;
D, ROMPaq processing unit carry out verification to the upgrade data in the main memory unit to be confirmed, after confirming to pass through, withdraws from ROMPaq, by reset unit the TPMS launch terminal is carried out system reset.
Preferably, steps A specifically comprises:
The central process unit of upgrading main frame sends the upgrade request instruction to the terminal low frequency cell of TPMS launch terminal by the main frame low frequency cell in the main frame radio upgrade interface unit, and the terminal low frequency cell of TPMS launch terminal is waken up after receiving this upgrade request instruction.
Preferably, step B specifically comprises:
Include the TPMS communication protocol information that need to be upgraded in the upgrade request instruction, micro-control unit compares the TPMS communication protocol information of current TPMS launch terminal and the TPMS communication protocol information after the upgrading, if consistent, does not then need upgrading; If inconsistent, then need upgrading, the corresponding request upgrade information that produces of micro-control unit feeds back to the main frame radio frequency unit by the terminal radio frequency unit.
Preferably, step C specifically comprises:
The central process unit of upgrading main frame sends upgrade data by the main frame low frequency cell in the main frame radio upgrade interface unit to the terminal low frequency cell of TPMS launch terminal, includes TPMS communication protocol information after the upgrading and ID number or sequence number of first wife's launch terminal in this upgrade data.
Preferably, also comprise between step C and the D:
Upgrading main frame and TPMS launch terminal are processed every frame upgrade data, and upgrade data is deciphered verification automatically, and the TPMS launch terminal is temporary in standby memory cell with the upgrade data that receives, and copy to main memory unit from standby memory cell.
The system and method for realizing general TPMS launch terminal upgrading that connects based on wireless telecommunications provided by the invention, by general TPMS launch terminal carries out radio upgrade in the motor tire to being installed in and not being installed in, the TPMS launch terminal is mated from the launch terminal of different automobile types and different TPMS communication protocols, realize the general purpose of present TPMS launch terminal, reduced the replacement cost of launch terminal.Compared with prior art, the present invention is simple and practical, by the general TPMS launch terminal of upgrading, can mate the data of the TPMS launch terminal of any vehicle, and the present invention can compatible market on the TPMS system of most vehicles, can use in a large number in after sale maintenance, use ID number or sequence code of first wife's terminal, directly replace original launch terminal, do not need to revise the data of any former car ECU, make replacing tire pressure terminal simple and convenient, have huge commercial value.
Description of drawings
Fig. 1 is system principle diagram of the present invention.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, 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, is not intended to limit the present invention.
See also shown in Figure 1ly, Fig. 1 is system principle diagram of the present invention.The invention provides and a kind ofly connect to realize the system of general TPMS launch terminal upgrading based on wireless telecommunications, being mainly used in solving present different automotive type TPMS launch terminal can't be general, coupling poor compatibility and the high problem of replacement cost.
Wherein this system includes: upgrading main frame and TPMS launch terminal, be provided with central process unit, memory device and main frame radio upgrade interface unit in the described upgrading main frame, this main frame radio upgrade interface unit comprises main frame low frequency cell and main frame radio frequency unit, the main frame low frequency cell is used for main frame and sends upgrade data to the TPMS launch terminal, the main frame radio frequency unit is used for escalation process and receives the TPMS launch terminal to the answer feedback of main frame, and low frequency refers to 125KHZ herein, and radio frequency refers to 315/433MHZ; Described memory device is connected with the main frame radio frequency unit with the main frame low frequency cell of main frame radio upgrade interface unit respectively by central process unit, and store upgrade data in this memory device, described upgrade data comprises the TPMS of various automobiles communication protocol and first wife's launch terminal ID number or sequence number.
The TPMS launch terminal, this launch terminal is universal launch terminal, especially for the TPMS launch terminal of luxurious high-grade automobile, its Costco Wholesale is lower, this launch terminal includes micro-control unit, main memory unit, standby memory cell, the ROMPaq processing unit, power supply unit, the 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, the terminal low frequency cell is used for request upgrade command and the upgrade data that Receiving Host sends to the TPMS launch terminal, the 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, and radio frequency refers to 315/433MHZ; Described main memory unit, standby memory cell, ROMPaq processing unit, power supply unit, data sampling unit, reset unit all are connected with the terminal radio frequency unit with terminal low frequency cell in the terminal wireless upgrade interface unit by micro-control unit.
Wherein power supply unit is used for micro-control unit and the power supply of other unit, and the data sampling unit is used for the parameter such as the tire pressure, temperature to motor tire and samples; The wireless telecommunications with the automobile middle control device then be used for to be set up in the terminal radio frequency unit, and the parameters such as the tire pressure that sampling is obtained, temperature send, and terminal radio frequency of the present invention unit also is used for instruction that whether feedback terminal need to upgrade to the upgrading main frame simultaneously; Micro-control unit is used for above-mentioned parameter and signal are carried out processing controls, and sets up the upgrading connection, obtains upgrade data; The ROMPaq processing unit is used for according to the upgrade data that obtains the launch terminal control of upgrading is carried out verification to upgrade data simultaneously; Standby memory cell is used for temporary transient storage upgrade data, and under the control of ROMPaq processing unit, upgrade data is copied in the main memory unit, carry out upgrading processing, after ROMPaq is finished, withdraw from ROMPaq, and start reset unit this TPMS launch terminal is resetted, make TPMS communication protocol in the TPMS launch terminal be upgraded to the communication protocol of prior requirement, this TPMS launch terminal respective upgrades is to ID number or sequence number of first wife's launch terminal simultaneously.
The upgrading mode of native system is as follows: the central process unit of the main frame of at first upgrading sends the upgrade request instruction that comprises TPMS communication protocol to the terminal low frequency cell of TPMS launch terminal by the main frame low frequency cell in the main frame radio upgrade interface unit, after receiving this signal, the terminal low frequency cell of TPMS launch terminal is waken up, and this upgrade request instruction sent to micro-control unit, micro-control unit compares the TPMS communication protocol that comprises in the current TPMS communication protocol that adopts of TPMS launch terminal and the upgrade request instruction, if the two is consistent, represent that then the two can compatible use, only need to obtain corresponding first wife's Termination ID number or sequence number get final product from the upgrading main frame, not need to upgrade; If the two is inconsistent, then expression needs upgrading, and the corresponding request of producing sends the feedback information of upgrade data, feed back to the main frame radio frequency unit of upgrading main frame by the mode of radio communication by the terminal radio frequency unit, and the corresponding feedback command that produces is to the upgrading host cpu, the information exchange that the central process unit correspondence will include TPMS communication protocol and first wife's Termination ID number or sequence number is crossed wireless mode and is sent to the TPMS launch terminal, utilize 125KHZ main frame low frequency cell to launch, terminal low frequency cell by the TPMS launch terminal receives, and the ROMPaq processing unit in the TPMS launch terminal is when obtaining upgrade data, every frame upgrade data is deciphered verification automatically for upgrading main frame and ROMPaq processing unit and whether application retransmits, after data to be upgraded transmit and finish, temporarily be stored in standby memory cell, then copy to main memory unit, the ROMPaq processing unit carries out verification to the upgrade data in the main memory unit and confirms, after affirmation is passed through, carry out updating operation, the TPMS communication protocol that comprises in the upgrade data and first wife's Termination ID number or sequence number are written in the main memory unit, finish ROMPaq, then by reset unit the TPMS launch terminal is carried out system reset afterwards, the TPMS communication protocol after making this TPMS launch terminal with upgrading and first wife's Termination ID number or sequence number carry out work.
After above-mentioned escalation process is finished, TPMS launch terminal correspondence can be installed in needs to change in the motor tire of launch terminal, and the present invention also can be installed in general TPMS launch terminal in the motor tire first, by the way the TPMS launch terminal is being carried out radio upgrade afterwards.
The described universal TPMS launch terminal of native system can the various different automobile types of compatible coupling the TPMS system, for the luxurious high-grade automobile TPMS launch terminal of present replacing easily for the cost of thousands of units, has price advantage, it need to be with the TPMS communication protocol of the universal TPMS launch terminal of the present invention respective upgrades to appointment, simultaneously ID number of corresponding first wife's terminal or sequence number are written to launch terminal and get final product, whole process is simple and convenient.
More than be the explanation that connects the system that realizes general TPMS launch terminal upgrading to the present invention is based on wireless telecommunications, the method that the below will connect to the present invention is based on wireless telecommunications the general TPMS launch terminal upgrading of realization is further described.
The present invention also provides a kind of and has connected the method that realizes general TPMS launch terminal upgrading based on wireless telecommunications, and it comprises that specifically step is as follows:
The present invention also provides a kind of and has connected the method that realizes general TPMS launch terminal upgrading based on wireless telecommunications, comprises step:
A, main frame radio upgrade interface unit send the upgrade request instruction to the terminal low frequency cell;
The central process unit of upgrading main frame sends the upgrade request instruction to the terminal low frequency cell of TPMS launch terminal by the main frame low frequency cell in the main frame radio upgrade interface unit, the terminal low frequency cell of TPMS launch terminal is waken up after receiving this upgrade request instruction, and this upgrade request instruction correspondence is sent to the micro-control unit of TPMS launch terminal.
The corresponding TPMS communication protocol that needs to specify after the upgrading and ID number or the sequence number of first wife's terminal of including in the upgrade request instruction here wherein.
B, micro-control unit judge the whether needs upgrading of TPMS launch terminal according to above-mentioned upgrade request instruction, if do not need, then finish; If necessary, then enter step C;
Micro-control unit compares the TPMS communication protocol information of current TPMS launch terminal and the TPMS communication protocol information after the upgrading, if consistent, then do not need upgrading, only need to be written in the main memory unit by the ROMPaq processing unit from ID number of the first wife's terminal in the upgrade request instruction or sequence number correspondence and get final product; If inconsistent, then need upgrading, the corresponding request upgrade information that produces of micro-control unit feeds back to the main frame radio frequency unit by the terminal radio frequency unit.
The central process unit of C, upgrading main frame sends upgrade data by main frame radio upgrade interface unit to the TPMS launch terminal;
After the central process unit of upgrading main frame obtains above-mentioned feedback information from the main frame radio frequency unit, then the corresponding main frame radio upgrade interface unit that passes through sends upgrade data to the TPMS launch terminal, include TPMS communication protocol information after the upgrading and ID number or sequence number of first wife's launch terminal in this upgrade data, TPMS launch terminal correspondence is obtained upgrade data by the terminal low frequency cell.
Wherein when upgrade main frame and TPMS launch terminal are processed every frame upgrade data, need to automatically decipher verification to upgrade data, temporary in standby memory cell through the upgrade data after the deciphering verification is passed through automatically, then from standby memory cell, copy to main memory unit by the ROMPaq processing unit.
D, ROMPaq processing unit carry out verification to the upgrade data in the main memory unit to be confirmed, after confirming to pass through, withdraws from ROMPaq, by reset unit the TPMS launch terminal is carried out system reset.
The ROMPaq processing unit carries out verification to the upgrade data in the main memory unit to be confirmed, after confirming to pass through, upgrades, and needed TPMS communication protocol and first wife's terminal ID number or sequence number correspondence are written to main memory unit, finishes upgrading.
The backed off after random ROMPaq is finished in upgrading, and reset unit carries out system reset by micro-control unit to the TPMS launch terminal, and the TPMS communication protocol after making this TPMS launch terminal with upgrading and first wife's Termination ID number or sequence number carry out work.
By the mode of the present invention general TPMS launch terminal of upgrading, the data that can mate the TPMS launch terminal of any vehicle, the TPMS system of most vehicles on can compatible market, can use in a large number in keeping in repair after sale, use ID number or sequence code of first wife's terminal, directly replace original launch terminal, do not need to revise the data of any former car ECU, make replacing tire pressure terminal simple and convenient, have huge commercial value.
More than be that a kind of the connection based on wireless telecommunications provided by the present invention realized that the system and method that general TPMS launch terminal is upgraded is described in detail, used specific case herein structural principle of the present invention and embodiment are set forth, above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, 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 (8)
1. connect to realize it is characterized in that the system of general TPMS launch terminal upgrading comprising based on wireless telecommunications for one kind:
One upgrading main frame, be provided with central process unit, memory device and main frame radio upgrade interface unit 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 vehicles 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 terminal low frequency cell wireless connections of the main frame low frequency cell of described upgrading main frame and TPMS launch terminal, the main frame radio frequency unit is connected with the terminal radio frequency unit wireless of TPMS launch terminal, the upgrading main frame sends the upgrade request instruction to the terminal low frequency cell of TPMS launch terminal by the main frame low frequency cell, the TPMS launch terminal judges whether the needs upgrading according to this upgrade request instruction, and when upgrading, needs feed back to the main frame radio frequency unit by the terminal radio frequency unit, request upgrading main frame sends upgrade data, the upgrading main frame sends upgrade data by the wireless connections between main frame low frequency cell and the terminal low frequency cell, after upgrade data is transmitted, micro-control unit is stored in standby memory cell with upgrade data, then copy to main memory unit, and by the ROMPaq processing unit upgrade data in the main memory unit is carried out verification and confirm.
2. the system based on the general TPMS launch terminal upgrading of wireless telecommunications connection realization according to claim 1 is characterized in that the upgrade data of storing in the described upgrading mainframe memory comprises that the TPMS of various automobiles communication protocol and first wife's launch terminal ID number or sequence number are arranged.
3. the system that connect to realize general TPMS launch terminal upgrading based on wireless telecommunications according to claim 1, it is characterized in that described TPMS launch terminal also includes a reset unit that is connected with micro-control unit, carries out system reset by this reset unit to the TPMS launch terminal.
4. connect to realize the method for general TPMS launch terminal upgrading it is characterized in that comprising step based on wireless telecommunications for one kind:
A, main frame radio upgrade interface unit send the upgrade request instruction to the terminal low frequency cell;
B, micro-control unit judge the whether needs upgrading of TPMS launch terminal according to above-mentioned upgrade request instruction, if do not need, then finish; If necessary, then enter step C;
The central process unit of C, upgrading main frame sends upgrade data by main frame radio upgrade interface unit to the TPMS launch terminal;
D, ROMPaq processing unit carry out verification to the upgrade data in the main memory unit to be confirmed, after confirming to pass through, withdraws from ROMPaq, by reset unit the TPMS launch terminal is carried out system reset.
5. according to claim 4ly connect to realize the method for general TPMS launch terminal upgrading it is characterized in that steps A specifically comprises based on wireless telecommunications:
The central process unit of upgrading main frame sends the upgrade request instruction to the terminal low frequency cell of TPMS launch terminal by the main frame low frequency cell in the main frame radio upgrade interface unit, and the terminal low frequency cell of TPMS launch terminal is waken up after receiving this upgrade request instruction.
6. according to claim 4ly connect to realize the method for general TPMS launch terminal upgrading it is characterized in that step B specifically comprises based on wireless telecommunications:
Include the TPMS communication protocol information that need to be upgraded in the upgrade request instruction, micro-control unit compares the TPMS communication protocol information of current TPMS launch terminal and the TPMS communication protocol information after the upgrading, if consistent, does not then need upgrading; If inconsistent, then need upgrading, the corresponding request upgrade information that produces of micro-control unit feeds back to the main frame radio frequency unit by the terminal radio frequency unit.
7. according to claim 4ly connect to realize the method for general TPMS launch terminal upgrading it is characterized in that step C specifically comprises based on wireless telecommunications:
The central process unit of upgrading main frame sends upgrade data by the main frame low frequency cell in the main frame radio upgrade interface unit to the terminal low frequency cell of TPMS launch terminal, includes TPMS communication protocol information after the upgrading and ID number or sequence number of first wife's launch terminal in this upgrade data.
8. according to claim 4ly connect to realize it is characterized in that the method for general TPMS launch terminal upgrading also comprising between step C and the D based on wireless telecommunications:
Upgrading main frame and TPMS launch terminal are processed every frame upgrade data, and upgrade data is deciphered verification automatically, and the TPMS launch terminal is temporary in standby memory cell with the upgrade data that receives, and copy to main memory unit from standby memory cell.
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