CN105223944A - The vehicle data acquisition equipment of a kind of adaptive OBD II interface and the multiple automobile bus of self-adaptation and diagnosing protocol - Google Patents
The vehicle data acquisition equipment of a kind of adaptive OBD II interface and the multiple automobile bus of self-adaptation and diagnosing protocol Download PDFInfo
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
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Abstract
The invention provides the vehicle data acquisition equipment of a kind of adaptive OBDII interface and the multiple automobile bus of self-adaptation and diagnosing protocol.Comprise: program control multi-way switch handover module, auxiliary separating die block, bus transceiver module one, bus transceiver module two, the miniature control module of MCU, nonvolatile memory, GPS locating module, wireless communication module and Power convert and control module; Program control multi-way switch handover module receives the instruction of miniature control module, the gating of control OBDII manufacturer's self defined interface and miniature control module pin; Auxiliary separating die block provides adaptive level for self defined interface and miniature control module pin; Bus transceiver module one and module two transfer bus and diagnostic data; The miniature control module of MCU reads bus and diagnostic data, and obtain position data, control data Wireless transceiver, controls each modular power source break-make; Power convert and control module provide power supply for each functional module.
Description
Technical field
The present invention relates to a kind of vehicular data acquisition equipment, particularly relate to the terminal device of a kind of adaptive OBDII interface and various automobile bus and diagnosing protocol.
Background technology
Along with the high speed development of automobile industry, constantly popularizing of home-use car, the Related product of living after automobile also forms great market.Automobile failure diagnosis series products, as the most important components of life Related product after automobile, is popularized rapidly along with the development of automobile industry.
Existing automobile failure diagnosis series products has two large weakness: one is this series products is all could use when known OBDII interface pin definition; Two is compatible vehicles that this series products only supports OBDII/EOBD agreement substantially, and the OBD interface signal for different automobile types carrys out corresponding modify interface circuit, complex operation.
Summary of the invention
The object of the invention is to overcome above-mentioned shortcoming, by carrying out the test of identification signal definition to OBDII total interface, finally know all signal definitions on OBDII16 interface, thus automobile information collection and diagnosis service can be carried out to the bus interface of the unknown.
According to a main aspect of the present invention, a kind of vehicular data acquisition equipment is provided, it comprises: program control multi-way switch handover module, auxiliary separating die block, bus transceiver module one, bus transceiver module two, the miniature control module of MCU, nonvolatile memory, GPS locating module, wireless communication module and Power convert and control module; The switching over instruction that described program control multi-way switch handover module sends for receiving miniature control module, and according to the gating of this switching over commands direct auxiliary separating die block control OBDII manufacturer's self defined interface and the miniature control module pin of MCU, and the gating of bus transceiver module interface and the defined interface of OBDII, realize the function that miniature control module reads real-time bus data and diagnostic data; Described bus transceiver module one is miniature control module transmission real-time bus data and diagnostic data; Described bus transceiver module two is miniature control module transmission real-time bus data and diagnostic data; Described miniature control module is for controlling program control multi-channel switch, read bus data and the diagnostic data of the defined interface of OBDII, store and obtain data, communication control module carries out data wireless transmission, control locating module and obtain position data, control program control multi-way switch handover module, bus transceiver module one, bus transceiver module two, nonvolatile memory, GPS locating module, the on/off of wireless communication module; Described Power convert and control module are program control multi-way switch handover module, bus transceiver module one, bus transceiver module two, the miniature control module of MCU, nonvolatile memory, GPS locating module, and wireless communication module provides operating voltage.
Preferably, described auxiliary separating die block carries out suitable dividing potential drop to unknown interface, for the miniature control module of MCU judges that bus type provides adaptive level.
Preferably, described bus transceiver module one is integrated with CAN at a high speed, low speed/fault-tolerant bus transceiver, SCAN single bus transceiver, K/L bus transceiver and PWM/VPW bus transceiver.
Preferably, described bus transceiver module two is integrated with CAN high-speed bus transceiver, K/L bus transceiver and PWM/VPW bus transceiver.
Preferably, described K/L bus transceiver is integrated with logic level and switches and mixed logic commutation circuit, and then the level logic realizing K/L bus transceiver switches.
Preferably, described CAN high speed, low speed/fault-tolerant bus transceiver, SCAN single bus transceiver energy supporting bus list duplex transmission-receiving function, miniature control module sends Reverse Turning Control order by CAN transceiver, requires portions of electronics module execution control function.
Preferably, the input service voltage of described Power convert and control module is 12V.
Preferably, wherein Power convert part is regulated input voltage by this low pressure difference linear voltage regulator, and then be program control multi-way switch handover module, bus transceiver module one, bus transceiver module two, the miniature control module of MCU, nonvolatile memory, GPS locating module, wireless communication module provides operating voltage.Another control module and miniature control module cooperating, and then the break-make controlling above each module work power supply.
Preferably, described program control multi-way switch handover module adopts SPI mouth standard communication mode, and the input data rate of this program control multi-way switch handover module is 1Mb/s.
Preferably, described program control multi-way switch handover module comprises several analog switch array, each analog switch comprises several pin, described program control multi-way switch handover module controls the gating of each pin of those analog switches and described vehicle diagnosis interface according to the decode results of microcontroller input control order, so realize bus transfer device, bus interface circuit is connected with the communication of vehicle diagnosis interface.
Preferably, described non-volatile memory devices fails the bus real time data of timely upload server and diagnostic data for storing.
Preferably, described wireless communication module is used for bus real time data and diagnostic data to upload onto the server to carry out data analysis.
Preferably, described locating module provides the real-time position information of vehicle, and microcontroller is obtained this information and uploaded onto the server by wireless communication module and carries out data analysis.
Preferably, described microcontroller communication control module carries out data wireless transmission, control locating module and obtain position data, and the self-management of terminal work mode is carried out according to bus virtual condition and power level signal, program control multi-way switch handover module, bus transceiver module one, bus transceiver module two, nonvolatile memory, GPS locating module can be controlled respectively under different mode of operations, the on/off of wireless communication module, and then reduce the quiescent dissipation under special applications.
Preferably, interface definition in ISODIS15031-3 being used as to communication confirms, carries out Intelligent Measurement, determine the signal definition of each interface to the self-defining interface of manufacturer.
According to another main aspect of the present invention, provide a kind of vehicle-mounted OBD terminal from adaptive method, described vehicle-mounted OBD terminal comprises the miniature control module of MCU, also comprises multiple manufacturers self defined interface and multiple international standard interface, said method comprising the steps of:
A () determines the signal validity of each international standard interface;
B () detects described multiple manufacturers self defined interface, to determine the definition of each manufacturer self defined interface with multiple car rule communication protocol; For the manufacturer's self defined interface cannot determining to define, be then defined as null interface.
Preferably, diagnostic command is sent, to determine whether this one or more first interface is J1850PWM interface with SAEJ1850PWM communications protocol to the one or more first interfaces in described multiple international standard interface.
Preferably, if described one or more first interface is not J1850PWM interface, then send diagnostic command, to determine whether this one or more first interface is J1850VPW interface with SAEJ1850VPW communications protocol to described one or more first interface.
Preferably, one or more second interfaces in described multiple international standard interface are connected through the Serial Peripheral Interface (SPI) of K/L bus transceiver with the miniature control module of MCU, by ISO9141-2, ISO14230-4 communications protocol sends initialization command, to determine whether this one or more second interface is K/L bus interface.
Preferably, by the CANH of the miniature control module of described MCU by the one or more 3rd interface access CAN high-speed transceivers in described multiple international standard interface, CANL line, the CAN control module arranged in described MCU by ISO15765-4 communications protocol is listen mode, to determine whether this one or more 3rd interface is high-speed CAN bus.
Preferably, detecting in the step of described multiple manufacturers self defined interface with multiple car rule communication protocol, the mode of cyclic polling is adopted to test, to determine that its interface defines to each manufacturer self defined interface.
Preferably, adopt the step of testing to each manufacturer self defined interface to comprise and carry out analog to digital conversion scanning to each described manufacturer self defined interface successively, to obtain the level delta data of each described manufacturer self defined interface.
Preferably, judge according to the level changing value of each described manufacturer self defined interface the possible bus signals corresponding to this interface.
Preferably, if the signal of J1850PWM or J1850VPW detected in described manufacturer self defined interface, then signal authenticity is determined further.
Preferably, if there is one or more manufacturer's self defined interface without level change in described multiple manufacturers self defined interface, then this one or more manufacturer's self defined interface without level change is carried out to the judgement of K/L line bus.
There is a main aspect according to of the present invention, provide a kind of for vehicular data acquisition equipment, comprising: program control multi-way switch handover module, bus transceiver module one, bus transceiver module two and the miniature control module of MCU; Described bus transceiver module one and described bus transceiver module two are connected between described program control multi-way switch handover module and the miniature control module of described MCU; The switching over instruction that described program control multi-way switch handover module sends for receiving miniature control module; Described bus transceiver module one is communicated with the manufacturer's self defined interface in OBDII interface by described program control multi-way switch handover module, is the miniature control module transmission real-time bus data of described MCU and diagnostic data; International standard interface gating in the interface of described bus transceiver module two and OBDII interface is the miniature control module transmission real-time bus data of described MCU and diagnostic data; Described miniature control module is for controlling program control multi-channel switch, read the bus data determining the interface defined in OBDII interface and diagnostic data, store and obtain data, control the on/off of program control multi-way switch handover module, bus transceiver module one, bus transceiver module two.
Preferably, described equipment also comprises auxiliary separating die block, it is connected between described program control multi-way switch handover module and the miniature control module of described MCU, and described program control multi-way switch handover module is according to the gating of the manufacturer's self defined interface in described switching over commands direct auxiliary separating die block control OBDII interface and the miniature control module pin of MCU.
Preferably, described auxiliary separating die block carries out suitable dividing potential drop to the unknown interface in OBDII interface, for the miniature control module of MCU judges that bus type provides adaptive level.
Preferably, described bus transceiver module one is integrated with CAN at a high speed, low speed/fault-tolerant bus transceiver, SCAN single bus transceiver, K/L bus transceiver and PWM/VPW bus transceiver.
Preferably, described bus transceiver module two is integrated with CAN high-speed bus transceiver, K/L bus transceiver and PWM/VPW bus transceiver.
Preferably, described K/L bus transceiver is integrated with logic level and switches and mixed logic commutation circuit, and then the level logic realizing K/L bus transceiver switches.
Preferably, described CAN high speed, low speed/fault-tolerant bus transceiver, SCAN single bus transceiver supporting bus list duplex transmission-receiving function, miniature control module sends Reverse Turning Control order by CAN transceiver, requires portions of electronics module execution control function.
Preferably, described program control multi-way switch handover module adopts SPI mouth standard communication mode.
Preferably, the input data rate of described program control multi-way switch handover module is 1Mb/s.
Preferably, described program control multi-way switch handover module comprises several analog switch array, each analog switch comprises several pin, described program control multi-way switch handover module controls the gating of each pin of those analog switches and described vehicle diagnosis interface according to the decode results of microcontroller input control order, so realize bus transfer device, bus interface circuit is connected with the communication of vehicle diagnosis interface.
Accompanying drawing explanation
Below with reference to accompanying drawing, the preferred embodiment of the present invention is described.It is of the present invention that these embodiments are used to explanation, and non-invention is construed as limiting.
Fig. 1 is the hardware module schematic diagram of the present invention for vehicular data acquisition equipment.
Fig. 2 is the schematic flow sheet confirming GB definition pin signal.
Fig. 3 is the schematic flow sheet detecting self defined interface signal definition.
Fig. 4, under self defined interface is bus interface situation, confirms the process flow diagram of interface signal definition further.
According to an embodiment of the invention, this automobile information acquisition terminal comprises program control multi-way switch handover module 103, auxiliary separating die block 108, bus transceiver module 1, bus transceiver module 2 102, the miniature control module 109 of MCU, nonvolatile memory 110, GPS locating module 111, wireless communication module 112 and Power convert and control module 104.
In this automobile information collecting device, program control multi-way switch handover module 103 is by CPLD, multiplexer and analog switching circuit composition, CPLD control simulation on-off circuit connects the top of bleeder circuit, the tap of resistance in series can connect the input end of multiplexer, multiplexer exports the analog to digital conversion port and time seizure port that can connect miniature control module 109, bus transceiver module 1, can according to specifically performing flow process, worked by program control multi-way switch 103 and auxiliary separating die block 108 and carry out Dynamic Selection, miniature control module 109 sends instruction to CPLD, and control the different point pressure passageway of multiplexer selection, and then obtain undefined port level value.CPLD model is EPM1270.
The auxiliary separating die block 108 of this terminal by the resistance of eight series connection to manufacturer's self-defined OBDII pin signal dividing potential drop, can adaptive MCU microcontroller 109 interface.
The bus transceiver module 1 of this terminal comprises high-speed CAN, low speed/fault-tolerant CAN transceiver, SCAN single bus transceiver, K/L bus transceiver and PWM/VPW bus transceiver, high-speed CAN transceiver adopts NXPTJA1042, low speed/fault-tolerant CAN transceiver adopts NXPTJA1050, SCAN single bus transceiver adopts MCZ33897, K/L bus transceiver and PWM/VPW bus transceiver to be made up of discrete component.
The bus transceiver module 2 102 of this terminal comprises high-speed CAN, K/L bus transceiver and PWM/VPW bus transceiver, and high-speed CAN transceiver adopts NXPTJA1042, K/L bus transceiver and PWM/VPW bus transceiver to be made up of discrete component.
The miniature control module 109 of MCU of this terminal adopts NXPLPC17XX.
The concrete execution flow process of this terminal determination all of the port signal definition is as follows:
According to related content in ISODIS15031-3,1,3,8,9,11,12,13 to leave automobile vendor for self-defined, and 2,6,7,10,14,15 are generally international standard interface, also can be used as diagnosis communication.
Below to according to 2,6,7,10,14,15 interfaces being used as diagnosis communication, determine the validity of its signal, see Fig. 2.To 1,3,8,9,11,12, the 13 self-defining interfaces of manufacturer, detect its interface features, determine whether, into bus interface, to see Fig. 3.
1.MCU microcontroller unit 109 instructs program control multi-way switch handover module 103 to control 2 by SPI interface, the SPI model calling of 10 pins J1850PWM interface and the miniature control module 109 of MCU in bus transceiver module 2 102, diagnostic command is sent by SAEJ1850PWM communications protocol, if any replying and meeting communications protocol definition requirement, can determine 2,10 is J1850PWM interface.Entering the 3rd step, entering the 2nd step without replying.
The miniature control module of 2.MCU 109 is connected 2 through the SPI of SAEJ1850VPW interface with the miniature control module 109 of MCU, diagnostic command is sent by SAEJ1850VPW communications protocol, if any replying and meeting communications protocol definition requirement, can determine that 2 for J1850VPW interface, be without defining interface without replying 2.Enter the 3rd step.
The miniature control module 109 of 3.MCU is by 7,10 are connected through the SPI of K/L bus transceiver with the miniature control module 109 of MCU, by ISO9141-2, ISO14230-4 communications protocol sends initialization command, if any replying and meeting communications protocol definition requirement, can determine 7,10 is K/L bus interface, it is without defining interface that nothing replys 7,10.Enter the 4th step.
4.MCU microcontroller unit 109 is by 6,14 access CAN high-speed transceiver CANH, CANL line, arranging CAN control module in MCU by ISO15765-4 communications protocol is listen mode, baud rate is successively decreased from 1M, recording current setting baud rate when entering CAN receive interruption, confirming as high-speed CAN bus.Fail to enter CAN receive interruption, 6 after baud rate traversal, 14 is not CAN.
5. complete 2,6,7,10,14, the signal definition confirmation work of 15 interfaces.Under particular content is shown in.
6. the self-defining interface of pair manufacturer detects, and determines that its interface signal defines.Testing process is as follows:
In the process detecting self defined interface level, the miniature control module of MCU 109 is to program control multi-way switch handover module 103 sending controling instruction, connect the head of interface 3 to bleeder circuit of OBDII, bleeder circuit afterbody ground connection, dividing potential drop minimum point is selected to be connected to the analog to digital conversion interface of the miniature control module 109 of MCU as tap, continuous docking port number of scans second, change if any level, utilize analog-digital conversion result and intrinsic standoff ratio calculate and record level maximum and minimum value, change same record without level.Successively same analog to digital conversion scanning is carried out to self-defining port.Scan self-defining port successively by same procedure, obtain the level delta data of each port.Can the possible bus signals of each port of anticipation according to the level changing value of each port.See accompanying drawing Fig. 4, respectively to high-speed CAN bus voltage, low speed/fault-tolerant CAN voltage, single line CAN bus voltage is illustrated.Separately, the noble potential of J1850PWM is 5V, and electronegative potential is the noble potential of 0V, J1850VPW is 12V, and electronegative potential is 0V.Because of K/L line need in bus, send initialization command after, communication just can be carried out, therefore puts aside.
7. after completing the 6th step, use timer and D/A converter module collaborative work in the miniature control module 109 of MCU, the pair relationhip between existing level change port can be found out.Such as, according to known port voltage value, the miniature control module 109 of MCU controls auxiliary separating die block 108 and port voltage is adjusted to analog to digital conversion interface and the timer capture port that appropriate value connects MCU control unit 109, the duration of the hopping edge shot timers statistics low and high level of port signal, meanwhile, signal transition edges can trigger analog-digital conversion function, for high-speed CAN bus, low speed/fault-tolerant CAN, the matching relationship between J1850PWM bus three quasi-protocol determination port.
8. after completing the 7th step, by the method for the 4th step, high-speed CAN bus need be determined, low speed/fault-tolerant CAN, the baud rate of single line CAN bus, configuration CAN functional module is listen mode, and miniature control module 109 controls program control multi-way switch module 103 and is communicated with corresponding port, baud rate is successively decreased from 1Mbit/s, records current baud rate when successfully entering receive interruption.
9. as the signal port of J1850PWM or J1850VPW detected in manufacturer's self defined interface, miniature control module 109 sends control command to program control multi-way switch module 103, be communicated with the signal port of J1850PWM or J1850VPW, the corresponding interface of bus transceiver module 1 and miniature control module 109, according to the mode of the 1st step and the 2nd step, determine the port signal authenticity of J1850PWM or J1850VPW.
10. the judgement of K/L line bus in pair manufacturer's self defined interface, is carried out without the port of level change, miniature control module 109 sends control command to program control multi-way switch 103 module, be communicated with the signal port without level change, the corresponding interface of bus transceiver module 1 and miniature control module 109, according to the mode of the 3rd step, determine whether there is K/L bus in unallocated port.
After the confirmation of OBDII all of the port signal is terminated, carry out data acquisition and diagnosis service.According to the power level signal of OBDII the 16th interface and the state of all of the port bus signals, when meeting every switching condition, the mode of operation of terminal switches, the power consumption of dynamic adjustments self.Normal mode: all electronic modules normally work.Abnormal voltage pattern: MCU miniature control module 109 monitoring power supply, bus collection and the work of diagnosis service stopping, GPS module 111, wireless communication module 112 normally works, and reports abnormal voltage situation.The miniature control module 109 of bus park mode: MCU enters dormancy ready mode, and bus collection and the work of diagnosis service stopping, GPS module 111, wireless communication module 112 normally works, reporting position information.The miniature control module 109 of sleep pattern: MCU enters sleep pattern, bus gathers and the work of diagnosis service stopping, GPS module 111, wireless communication module 112 quits work, bus signals can be had to wake up for the miniature control module 109 of MCU or automated periodic is waken up, gather port bus signals, monitoring voltage value, and report a secondary data.Deep sleep: during periodic wakeup, monitoring voltage drops to limit value in a sleep mode, MCU penetration depth park mode, and periodic wakeup, only monitoring voltage value.Terminal is closed: magnitude of voltage is lower than limit value, and whole terminal quits work.
Terminal, while bus collection is served with diagnosis, sends control command by special diagnostic instruction to finished vehicle electronic control module, carries out Reverse Turning Control to vehicle, as remote activation, and switch gate and window etc.
It should be noted that, preferred embodiment of the present invention is given in instructions of the present invention and accompanying drawing thereof, but, the present invention can be realized by many different forms, be not limited to the embodiment described by this instructions, these embodiments not as the extra restriction to content of the present invention, provide the object of these embodiments be make the understanding of disclosure of the present invention more comprehensively thorough.Further, above-mentioned each technical characteristic continues combination mutually, is formed not in above-named various embodiment, is all considered as the scope that instructions of the present invention is recorded; Further, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (10)
1. one kind for vehicular data acquisition equipment, it is characterized in that, comprise: program control multi-way switch handover module, auxiliary separating die block, bus transceiver module one, bus transceiver module two, the miniature control module of MCU, nonvolatile memory, GPS locating module, wireless communication module and Power convert and control module; The switching over instruction that described program control multi-way switch handover module sends for receiving miniature control module, and according to the gating of this switching over commands direct auxiliary separating die block control OBDII manufacturer's self defined interface and the miniature control module pin of MCU, and the gating of bus transceiver module interface and the defined interface of OBDII, realize the function that miniature control module reads real-time bus data and diagnostic data; Described bus transceiver module one is miniature control module transmission real-time bus data and diagnostic data; Described bus transceiver module two is miniature control module transmission real-time bus data and diagnostic data; Described miniature control module is for controlling program control multi-channel switch, read bus data and the diagnostic data of the defined interface of OBDII, store and obtain data, communication control module carries out data wireless transmission, control locating module and obtain position data, control program control multi-way switch handover module, bus transceiver module one, bus transceiver module two, nonvolatile memory, GPS locating module, the on/off of wireless communication module; Described Power convert and control module are program control multi-way switch handover module, bus transceiver module one, bus transceiver module two, the miniature control module of MCU, nonvolatile memory, GPS locating module, and wireless communication module provides operating voltage.
2. vehicular data acquisition equipment as claimed in claim 1, it is characterized in that, described auxiliary separating die block carries out suitable dividing potential drop to unknown interface, for the miniature control module of MCU judges that bus type provides adaptive level.
3. vehicular data acquisition equipment as claimed in claim 1, is characterized in that, described bus transceiver module one is integrated with CAN at a high speed, low speed/fault-tolerant bus transceiver, SCAN single bus transceiver, K/L bus transceiver and PWM/VPW bus transceiver.
4. vehicular data acquisition equipment as claimed in claim 1, it is characterized in that, described bus transceiver module two is integrated with CAN high-speed bus transceiver, K/L bus transceiver and PWM/VPW bus transceiver.
5. the bus transceiver module one as described in claim 3 or 4, bus transceiver module two, is characterized in that, described K/L bus transceiver is integrated with logic level and switches and mixed logic commutation circuit, and then the level logic realizing K/L bus transceiver switches.
6. the bus transceiver module one as described in claim 3 or 4, bus transceiver module two, it is characterized in that, described CAN high speed, low speed/fault-tolerant bus transceiver, SCAN single bus transceiver energy supporting bus list duplex transmission-receiving function, miniature control module sends Reverse Turning Control order by CAN transceiver, requires portions of electronics module execution control function.
7. vehicular data acquisition equipment as claimed in claim 1, it is characterized in that, the input service voltage of described Power convert and control module is 12V.
8. Power convert as claimed in claim 7 and control module, it is characterized in that, wherein Power convert part is regulated input voltage by this low pressure difference linear voltage regulator, and then be program control multi-way switch handover module, bus transceiver module one, bus transceiver module two, the miniature control module of MCU, nonvolatile memory, GPS locating module, wireless communication module provides operating voltage; Control module and miniature control module cooperating, and then the break-make controlling above each module work power supply.
9. vehicular data acquisition equipment as claimed in claim 1, is characterized in that, described program control multi-way switch handover module adopts SPI mouth standard communication mode, and the input data rate of this program control multi-way switch handover module is 1Mb/s.
10. program control multi-way switch handover module as claimed in claim 9, it is characterized in that, described program control multi-way switch handover module comprises several analog switch array, each analog switch comprises several pin, described program control multi-way switch handover module controls the gating of each pin of those analog switches and described vehicle diagnosis interface according to the decode results of microcontroller input control order, so realize bus transfer device, bus interface circuit is connected with the communication of vehicle diagnosis interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510388651.7A CN105223944B (en) | 2014-07-07 | 2015-07-06 | One kind being used for vehicular data acquisition equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014103184083 | 2014-07-07 | ||
| CN201410318408.3A CN104090565A (en) | 2014-07-07 | 2014-07-07 | Vehicle data collecting device adaptive to OBD interface and self-adaptive to various vehicle buses and diagnostic protocols |
| CN201510388651.7A CN105223944B (en) | 2014-07-07 | 2015-07-06 | One kind being used for vehicular data acquisition equipment |
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| CN105223944A true CN105223944A (en) | 2016-01-06 |
| CN105223944B CN105223944B (en) | 2019-04-26 |
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| CN201410318408.3A Pending CN104090565A (en) | 2014-07-07 | 2014-07-07 | Vehicle data collecting device adaptive to OBD interface and self-adaptive to various vehicle buses and diagnostic protocols |
| CN201510388651.7A Expired - Fee Related CN105223944B (en) | 2014-07-07 | 2015-07-06 | One kind being used for vehicular data acquisition equipment |
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| CN201410318408.3A Pending CN104090565A (en) | 2014-07-07 | 2014-07-07 | Vehicle data collecting device adaptive to OBD interface and self-adaptive to various vehicle buses and diagnostic protocols |
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| KR20230103877A (en) * | 2021-12-31 | 2023-07-07 | 주식회사 유라코퍼레이션 | Diagnostic information transmitting apparatus and method for detecting pinmap of OBD connector |
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|---|---|
| CN104090565A (en) | 2014-10-08 |
| CN105223944B (en) | 2019-04-26 |
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