CN205356394U - Unified many protocol conversion device - Google Patents
Unified many protocol conversion device Download PDFInfo
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- CN205356394U CN205356394U CN201520739273.8U CN201520739273U CN205356394U CN 205356394 U CN205356394 U CN 205356394U CN 201520739273 U CN201520739273 U CN 201520739273U CN 205356394 U CN205356394 U CN 205356394U
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Abstract
The utility model provides an unified many protocol conversion device, the interface in vehicle OBD is connected to its K line communication module's one end, the other end is connected in main processor module, with the serial port signal that processor module can discern that gives first place to of the K line signal conversion in the car, bus transceiver module's one end connect in main processor module, the other end connect the interface in vehicle OBD, and with the CAN signal level that the bus signal's on the car level conversion can discern to main processor module, main processor module connects in the serial ports changes bluetooth module, with bus signal on the car or K line signal, send and change bluetooth module for the serial ports, and the serial ports changes bluetooth module to be connected in removing the end, sends main processor module bus signal 0 signal through the mode of bluetooth and holds for the removal. This unified many protocol conversion device can just can check all vehicle failure by enough general APP software of removals such as smart mobile phone end installation to convenience of customers in time discovers the vehicle problem to reduce use of risk.
Description
Technical field
This utility model relates to fault detection system for automobile, especially relates to a kind of unified multi-protocol conversion device.
Background technology
Owing to auto electric becomes increasingly complex, cause that the fault of some recessiveness could not be found and lead to traffic accident by car owner in time.If so user can understand the various faults that vehicle exists more on one's own initiative, react in time to maintenance station, thus reducing the risk using vehicle.Present different manufacturers, the agreement of the diagnosis on its automobile is different, thus causes the vehicle that user can not go diagnosis different with a general APP or the existing diagnostic apparatus based on UDS agreement.The multi-protocol data transducer for automobile failure diagnosis and its diagnosis processing method of CN101430557A it is numbered as being disclosed in 2009-05-13, its vehicle connects the RS232 interface that interface is connected with microcontroller, described microcontroller is connected between interface with vehicle and is respectively arranged with transducer power circuit and K line signal conditioning circuit, CAN signal modulate circuit and ALDL signal conditioning circuit, is provided with RS232 signal conditioning circuit between described microcontroller and RS232 interface.Being embedded with vehicle protocol automatic search module and protocol diagnosis module in described microcontroller, described diagnostic module includes diagnostic process submodule and the SAEJ1850/ISO9141/ISO14230/KW1281/ALDL protocol processes submodule of ISO15765/SAEJ1939 agreement.But the mobile terminals such as present mobile phone are substantially with bluetooth module, and generally do not have RS232 module, therefore its practicality is not strong.Its its agreement of two each vehicle producers not only only has above agreement, once there is new agreement or protocol update, the automatic search module of the microcontroller in its conversion equipment will be no longer applicable.
For another example being disclosed in 2013-07-10 and be numbered a kind of General-type handheld automobile fault diagnostic instrument of CN201310099849, its diagnostic apparatus is mainly made up of FPGA main control module, system memory module, power module, automobile information memorizer, CAN, touch screen, USB interface communication mould.Being connected with automobile ECU interface by the diagnosis interface in CAN, the control instruction sent according to touch screen reads and the information such as display automobile ECU DTC, dynamic dataflow, ECU version information, instruction fault level.But one mobile phone is inherently with touch screen, if so checking fault with mobile phone, it is possible to save the touch screen of diagnostic apparatus itself.Reduce its cost.Its two, most smart mobile phones can be surfed the Net, so downloading up-to-date program by mobile phone, then directly being upgraded for diagnostic apparatus will be brought great convenience for car owner by the mode of wireless blue tooth.Without described in its patent, automobile information integrated card is unloaded, be then put back in its diagnostic apparatus again complete upgrading to after its upgrading.Its three, its diagnostic apparatus does not have a K line communication module, and on market, the vehicle of circulation also there are many at present and carrys out tracing trouble by K line, so having certain limitation.DTC/the fault message of its four its diagnostic apparatus collection and vehicle operating parameter, if needing to analyse in depth, then need to adopt the mode of USB, transfer data on computer, and complete data backup.And if adopt the mode of smart mobile phone, then directly just can analyse in depth with mobile phone A PP, minimizing computer equipment and operating time.We have invented a kind of new unified multi-protocol conversion device for this, solve above technical problem.
Utility model content
The purpose of this utility model is to provide the agreement that a kind of protocol conversion by different manufacturers vehicle becomes unified, as converted unified UDS diagnosing protocol to and being sent to the mobile terminals such as mobile phone by the mode of bluetooth, it is simple to user checks the unified multi-protocol conversion device of the fault of vehicle, vehicle operating parameter.
The purpose of this utility model can be achieved by the following technical measures: unified multi-protocol conversion device, described unified multi-protocol conversion device includes main processor modules, bus transceiver module, serial ports turns bluetooth module and K line communication module, one end of described K line communication module is connected to vehicle OBD interface, the other end is connected to described main processor modules, K line signal in car is converted to the rs 232 serial interface signal that described main processor modules can recognise that, one end of described bus transceiver module is connected to described main processor modules, the other end is connected to vehicle OBD interface, the CAN signal level that the level conversion of the bus signals on car to described main processor modules be can recognise that, described main processor modules is connected to described serial ports and turns bluetooth module, by the bus signals on car or K line signal, it is sent to described serial ports and turns bluetooth module, described serial ports turns bluetooth module and is connected to mobile terminal, the signal described main processor modules received is sent to mobile terminal by the mode of bluetooth.
The purpose of this utility model realizes also by following technical measures:
Described K line communication module adopts the L9637D chip of ST company.
Described bus transceiver module adopts CAN transceiver module TJA1050 chip.
Described unified multi-protocol conversion device also includes power module, and described power module is connected to described main processor modules, described bus transceiver module, described serial ports turn bluetooth module and described K line communication module, provides power supply for each module.
Priming supply in the car of 12V is converted to 5V by described power module, it is provided that to described main processor modules, described bus transceiver module and described K line communication module, and provide 3.3V voltage to turn bluetooth module to described serial ports.
Described power module adopts Lm7805 and LM7833 switch chip.
Described serial ports turns bluetooth module and also receives the data that mobile terminal is sent by the mode of bluetooth, and by the mode of serial ports, data are sent to described main processing block.
Described serial ports turns bluetooth module and adopts HC-06 wireless module.
Data in bus signals on car or K line signal are converted to the data of the in advance agreement of agreement by described main processor modules, and the data of the agreement arranged in advance that will receive from mobile terminal, are converted to the data of Current vehicle agreement.
The agreement of described prior agreement is UDS agreement.
Unified multi-protocol conversion device in this utility model, becomes the fault diagnosis protocol conversion of different manufacturers vehicle such as UDS agreement, and is sent to the mobile terminals such as mobile phone by the mode of bluetooth.Being easy to user and check the fault of vehicle, user is after buying vehicle, it is possible to download the vehicle diagnostics agreement bought beyond the clouds with mobile phone and such as the program of UDS protocol conversion.Program is sent to this and becomes multiprotocol conversion such as the conversion equipment of UDS diagnosing protocol by mobile phone again, and vehicle diagnosis information just can be converted to such as UDS agreement and be sent to the mobile terminals such as mobile phone by this device.Its interface of described vehicle should meet OBD II.This device can install a APP software with mobile terminals such as general smart mobile phones just can check all vehicle troubles.To facilitate user to find vehicle problem in time, reduce application risk.
Accompanying drawing explanation
Fig. 1 is the structure chart of a specific embodiment of unified multi-protocol conversion device of the present utility model；
Fig. 2 is the circuit diagram of main processor modules in a specific embodiment of the present utility model；
Fig. 3 is the circuit diagram of power module in a specific embodiment of the present utility model；
Fig. 4 is the circuit diagram of bus transceiver module in a specific embodiment of the present utility model；
Fig. 5 is the circuit diagram that in a specific embodiment of the present utility model, serial ports turns bluetooth module；
Fig. 6 is the circuit diagram of the K line communication module in a specific embodiment of the present utility model；
Fig. 7 is the interface circuit figure with vehicle OBD in a specific embodiment of the present utility model.
Detailed description of the invention
For making above and other purpose of the present utility model, feature and advantage to become apparent, cited below particularly go out preferred embodiment, and coordinate institute's accompanying drawings, be described in detail below.
As it is shown in figure 1, the structure chart that Fig. 1 is unified multi-protocol conversion device of the present utility model.This is unified multi-protocol conversion device and is turned bluetooth module 14, K line communication module 11 by main processor modules 13, power module 15, bus transceiver module 12, serial ports.
K line communication module 11, one end is connected to vehicle OBD interface 21 as it is shown in fig. 7, the K line data that receive on car, and the other end is connected to main processor modules 13.Main Function is that the K signal in car is converted to the rs 232 serial interface signal that main processor modules 13 can recognise that.These K line signals, adopt half-duplex asynchronous serial communication, can by some on vehicle as fault-signal be sent to failure diagnostic apparatus, as engine management device finds water temperature over-high, this can record and change fault, when whether there is tracing trouble Deng diagnostic apparatus transmission diagnostic instruction reading, the fault of water temperature over-high is just sent to diagnostic apparatus by the mode of K line by engine management device.
In one embodiment, as shown in Figure 6, Fig. 6 is the circuit diagram of K line communication module in a specific embodiment of the present utility model.The main L9637D chip adopting ST company, its chip mainly converts the K signal on car to rs 232 serial interface signal that single-chip microcomputer can recognise that.
One end of bus transceiver module 12 is connected to main processor modules 13, the other end by vehicle OBD interface 21 as it is shown in fig. 7, to be connected to other car inner modules.This module carries out level conversion, the CAN signal level that the level conversion of the CAN signal on car to main processor modules 13 be can recognise that.
In one embodiment, as shown in Figure 4, Fig. 4 is the circuit diagram of bus transceiver module in a specific embodiment of the present utility model.The CAN transceiver module that this device adopts: TJA1050 is the controller zone network (CAN) interface between protocol controller and physical bus, is the high-speed CAN transceiver of a kind of standard.TJA1050 can provide differential sending performance for bus, provides differential receptivity for CAN controller.By TXCAN and the RXCAN of primary processor, its 0-5V level signal being converted to the CAN level signal that can recognise that in vehicle, the CAN level on car is that CAN is low is: 2.5v-1.5v, CAN height is 2.5V-3.5V.
Serial ports turns bluetooth module 14 one end and is connected to main processor modules 13, and the other end is connected to the mobile terminals such as mobile phone 31.Serial ports turns the signal that main processor modules 13 receives by bluetooth module 14 and is sent to the mobile terminals such as mobile phone 31 by the mode of bluetooth.Or send data to serial ports by the mode of bluetooth and turn bluetooth module 14, serial ports turns bluetooth module 14 and again by the mode of serial ports, its data is sent to main processing block 13.
In one embodiment, if desired for reading whether engine management device exists fault, then first the mobile terminal 31 such as mobile phone can send the instruction reading engine management device to unified multi-protocol conversion device, unified multi-protocol conversion device then can according to the converse routine of upgrading in advance, convert the instruction into the instruction reading engine management device of Current vehicle agreement, and the engine management device in car it is sent to by CAN or K line, after engine management device receives this instruction, then fault data is sent to unified multi-protocol conversion device, unified multi-protocol conversion device converts these data to the data of the agreement of agreement in advance again, it is sent to the mobile terminals such as mobile phone 31 by the mode of bluetooth, such user just can check whether transmitter exists fault by mobile phone terminal again.The mobile terminals such as mobile phone 31 can be passed through cloud and download the program 41 of the agreement such as UDS protocol conversion obtaining certain vehicle.
In one embodiment, as it is shown in figure 5, Fig. 5 is the circuit diagram that in a specific embodiment of the present utility model, serial ports turns bluetooth module.It is HC-06 wireless module that serial ports turns bluetooth module: compact is about the effective transmission range of 3.57cm*1.52cm: field coverage 10 meters, voltage 3.3V, adopt peripheral circuit shown in Fig. 5, carry out full duplex serial communication by the single-chip microcomputer of voltage conversion with 5V, baud rate is set by AT instruction.Built-in 8MFLASH, RF antenna.The domestic a lot of producers of this module are all commercially available.
Main processor modules 13 connects bus transceiver module 12, serial ports turns bluetooth module 14, K line communication module 11, power module 15.By the bus diagnostic signal on car or K radiodiagnosis x signal, it is sent to serial ports and turns bluetooth module 14.In implementing one, as in figure 2 it is shown, Fig. 2 is the circuit diagram of processor module in a specific embodiment of the present utility model.The MC9S12G48 chip of 48 feet that processor is Freescale that this device adopts, its small volume is 9*9mm, voltage support 3.13V-5.5V.Reach 16 disposal abilities.Have a road CAN module.
Power module 15, one is connected to bus transceiver module 12, K line communication module 11, main processor modules 13.Priming supply in the car of 12V is converted to 5V by power module 15, its two be connected to serial ports turn bluetooth module 14 for its provide 3.3V voltage.This module provides power supply for this device.
In one embodiment, as it is shown on figure 3, Fig. 3 is the circuit diagram of power module in a specific embodiment of the present utility model.The power module that this device adopts is Lm7805 and LM7833 switch chip, and wherein Lm7805 is maximum can export 1A electric current, and output voltage is at 5V, and excursion, at 4.8V-5.2V, has thermal overload protection, short circuit current limitation function.Power supply is provided for the TJA1050 of main MCU and nxp, impact switch module.The maximum 1A electric current that can export of LM7833, output voltage 3.3V, excursion has thermal overload protection, short circuit current limitation function at 3.1V-3.4V, and turning bluetooth module for serial ports provides voltage.
In one embodiment, the work process of the conversion equipment of unified multi-protocols of the present utility model is as follows:
What 1, assume that vehicle 1 adopts is K line communication, and the diagnosing protocol of employing is A, and vehicle 2 adopts is CAN communication, and the agreement of employing is B, and vehicle 3 adopts is CAN communication, and the agreement of employing is C.
2, when multiprotocol conversion becomes the conversion equipment such as UDS diagnosing protocol connect vehicle 1, on physics and network data link become, and vehicle 1 communication, employing K line communication, and convert K line signal to Bluetooth signal that the mobile terminals such as mobile phone can recognise that.In agreement, the A protocol conversion of vehicle 1 is become UDS agreement.
Initialize installation: user selects vehicle 1, APP to be sent to become such as the conversion equipment of UDS diagnosing protocol multiprotocol conversion by the mode of bluetooth by the information of vehicles of its selection on mobile phone A PP.
It is 0X19 (specification of UDS agreement) such as its UDS Read fault code service order that multiprotocol conversion becomes the conversion equipment such as UDS diagnosing protocol be switched on the A agreement pattern with the exchange of UDS agreement, is known that the mobile terminals such as mobile phone need read failure code.Become the conversion equipment such as UDS diagnosing protocol again data to be changed into into A agreement corresponding read failure code multiprotocol conversion and be sent to vehicle 1, vehicle 1 just is sent to DTC to become multiprotocol conversion such as the conversion equipment of UDS diagnosing protocol upon receipt of the data, and by UDS mode, the multiprotocol conversion one-tenth conversion equipment such as UDS diagnosing protocol is sent to the mobile terminals such as mobile phone data again.
3, when multiprotocol conversion becomes the conversion equipment such as UDS diagnosing protocol connect vehicle 2, on physics and network data link become, and vehicle 2 communication, employing CAN line communication, and convert CAN line signal to Bluetooth signal that the mobile terminals such as mobile phone can recognise that.In agreement, the B protocol conversion of vehicle 2 is become UDS agreement.Specifically change as described in method 2.
4, when multiprotocol conversion becomes the conversion equipment such as UDS diagnosing protocol connect vehicle 3, on physics and network data link become, and vehicle 3 communication, employing CAN line communication, and convert CAN line signal to Bluetooth signal that the mobile terminals such as mobile phone can recognise that.In agreement, the B protocol conversion of vehicle 3 is become UDS agreement.Specifically change as described in method 2.
5, the DTC that the mobile terminal such as mobile phone will receive, such as P050606, utilizes and deposits DTC data base in APP software in advance, translate into the straightaway word of energy, facilitate user to check.User is after buying vehicle, it is possible to download the program of vehicle diagnostics agreement and the UDS protocol conversion bought beyond the clouds with mobile phone.Program is sent to and becomes multiprotocol conversion such as the conversion equipment of UDS diagnosing protocol by mobile phone again.
After new or change diagnosing protocol occurs, have only to add this multiprotocol conversion become in the conversion equipment of UDS diagnosing protocol, the converse routine of new agreement and UDS, it is new procedures more, user can download to mobile phone terminal on the net at it, utilize the mode of bluetooth, program is directly sent to this become multiprotocol conversion such as the conversion equipment of UDS diagnosing protocol, multiprotocol conversion is become if the conversion equipment of UDS diagnosing protocol is after receiving driving data by this, directly update software, for mobile phone terminal, have only to add the DTC data base that its new model increases or changes.And for a user, it is possible on webpage, optionally update its program needing conversion.
Claims (14)
1. unify multi-protocol conversion device, it is characterized in that, described unified multi-protocol conversion device includes main processor modules, bus transceiver module, serial ports turns bluetooth module and K line communication module, one end of described K line communication module is connected to vehicle OBD interface, the other end is connected to described main processor modules, K line signal in car is converted to the rs 232 serial interface signal that described main processor modules can recognise that, one end of described bus transceiver module is connected to described main processor modules, the other end is connected to vehicle OBD interface, the CAN signal level that the level conversion of the bus signals on car to described main processor modules be can recognise that, described main processor modules is connected to described serial ports and turns bluetooth module, by the bus signals on car or K line signal, it is sent to described serial ports and turns bluetooth module, described serial ports turns bluetooth module and is connected to mobile terminal, the signal described main processor modules received is sent to mobile terminal by the mode of bluetooth.
2. unified multi-protocol conversion device according to claim 1, it is characterised in that described K line communication module adopts the L9637D chip of ST company.
3. unified multi-protocol conversion device according to claim 1 and 2, it is characterised in that described bus transceiver module adopts CAN transceiver module TJA1050 chip.
4. unified multi-protocol conversion device according to claim 1, it is characterized in that, described unified multi-protocol conversion device also includes power module, described power module is connected to described main processor modules, described bus transceiver module, described serial ports turn bluetooth module and described K line communication module, provides power supply for each module.
5. unified multi-protocol conversion device according to claim 4, it is characterized in that, priming supply in the car of 12V is converted to 5V by described power module, it is supplied to described main processor modules, described bus transceiver module and described K line communication module, and provides 3.3V voltage to turn bluetooth module to described serial ports.
6. unified multi-protocol conversion device according to claim 4, it is characterised in that described power module adopts Lm7805 and LM7833 switch chip.
7. unified multi-protocol conversion device according to claim 5, it is characterised in that described power module adopts Lm7805 and LM7833 switch chip.
8. the unified multi-protocol conversion device according to claim 1 or 2 or 4, it is characterised in that described serial ports turns bluetooth module and also receives the data that mobile terminal is sent by the mode of bluetooth, and by the mode of serial ports, data are sent to described main processing block.
9. unified multi-protocol conversion device according to claim 3, it is characterised in that described serial ports turns bluetooth module and also receives the data that mobile terminal is sent by the mode of bluetooth, and by the mode of serial ports, data are sent to described main processing block.
10. unified multi-protocol conversion device according to claim 1, it is characterised in that described serial ports turns bluetooth module and adopts HC-06 wireless module.
11. unified multi-protocol conversion device according to claim 1, it is characterized in that, data in bus signals on car or K line signal are converted to the data of the agreement of agreement in advance by described main processor modules, and the data of the in advance agreement of agreement that will receive from mobile terminal, be converted to the data of Current vehicle agreement.
12. unified multi-protocol conversion device according to claim 8, it is characterized in that, data in bus signals on car or K line signal are converted to the data of the agreement of agreement in advance by described main processor modules, and the data of the in advance agreement of agreement that will receive from mobile terminal, be converted to the data of Current vehicle agreement.
13. unified multi-protocol conversion device according to claim 9, it is characterized in that, data in bus signals on car or K line signal are converted to the data of the agreement of agreement in advance by described main processor modules, and the data of the in advance agreement of agreement that will receive from mobile terminal, be converted to the data of Current vehicle agreement.
14. according to the unified multi-protocol conversion device described in claim 11 or 12 or 13, it is characterised in that the agreement of described prior agreement is UDS agreement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739273.8U CN205356394U (en) | 2015-09-23 | 2015-09-23 | Unified many protocol conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739273.8U CN205356394U (en) | 2015-09-23 | 2015-09-23 | Unified many protocol conversion device |
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| CN205356394U true CN205356394U (en) | 2016-06-29 |
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| CN201520739273.8U Expired - Fee Related CN205356394U (en) | 2015-09-23 | 2015-09-23 | Unified many protocol conversion device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107864080A (en) * | 2017-10-20 | 2018-03-30 | 深圳市元征软件开发有限公司 | Auto communication method, apparatus and computer-readable recording medium |
| CN112269368A (en) * | 2020-10-20 | 2021-01-26 | 东风汽车股份有限公司 | Method for self-adaptively reading vehicle identification code |
-
2015
- 2015-09-23 CN CN201520739273.8U patent/CN205356394U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107864080A (en) * | 2017-10-20 | 2018-03-30 | 深圳市元征软件开发有限公司 | Auto communication method, apparatus and computer-readable recording medium |
| CN112269368A (en) * | 2020-10-20 | 2021-01-26 | 东风汽车股份有限公司 | Method for self-adaptively reading vehicle identification code |
| CN112269368B (en) * | 2020-10-20 | 2021-07-13 | 东风汽车股份有限公司 | Method for self-adaptively reading vehicle identification code |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20160923 |
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| CF01 | Termination of patent right due to non-payment of annual fee |