CN207867302U - Car OBD interface intelligently parsing development board - Google Patents
Car OBD interface intelligently parsing development board Download PDFInfo
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- CN207867302U CN207867302U CN201820275202.0U CN201820275202U CN207867302U CN 207867302 U CN207867302 U CN 207867302U CN 201820275202 U CN201820275202 U CN 201820275202U CN 207867302 U CN207867302 U CN 207867302U
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Abstract
The utility model is related to a kind of car OBD interface intelligently parsing development boards.Including control circuit, power circuit, CAN interface circuit, RS232 circuits etc..Control circuit connects CAN interface and RS232 interface, power circuit are separately connected control circuit, CAN interface and RS232 interface and simulator circuit.Main control module uses the STM32 chips of ST companies, and CAN interface and RS232 interface are connect by transceiver with microcontroller.Encrypting module microcontroller is connect with MCU, realizes the setting of data encryption and device id.It can upgrade the operation program in microcontroller by triggering button user to help client to realize different functions.Compared with existing utility model, the utility model has shape exquisiteness small and exquisite, using high quality chip, highly integrated, low consumption circuit design, it is easy to use, the advantages that fast response time and can supporting most of vehicle on the market, support automobile real time data and statistical data.
Description
Technical field
The utility model is related to automobile OBD to decode field, be developed more particularly, to a kind of car OBD interface intelligently parsing
Plate.
Background technology
OBD full name are On Board Diagnostics, i.e. onboard diagnostic system.To keep motor vehicle emission related to driven nature
The diagnostic standardization of failure, since 1996, all whole new cars in U.S.'s sale, diagnostic instrments, malfunction coding and inspection
Repairing step must be similar, that is, meets II procedure stipulations of OBD.As economic globalization and the international degree of automobile are higher and higher,
As driven nature and discharge diagnostic base, II systems of OBD will obtain more and more extensive implementation and application.II programs of OBD make
It obtains automobile failure diagnosis simply to unify, maintenance personal is not required to specially learn the new system of each producer.Although however agreement
It is general, but artificial decoding still needs to expend great effort, automobile solution is given in the invention of car OBD interface intelligently parsing development board
Code engineer provides great convenience.
Invention content
The utility model specifically provides a kind of intelligently parsing development board, including control circuit, auxiliary power circuit, CAN
Interface circuit, RS232 interface circuit and simulator circuit, the auxiliary power circuit are separately connected control circuit, CAN interface electricity
Road, RS232 interface circuit and simulator circuit, the control circuit include microcontroller, encrypted memory module.Add
Close module microcontroller connect the setting, it can be achieved that data encryption and device id with MCU.
The CAN interface circuit is connected by CAN transceiver PCA82C251 chips with control circuit microcontroller STM32.
The RS232 interface circuit is connect by RS232 transceivers SP3232EEN with control circuit microcontroller STM32.
The auxiliary power circuit includes LM2576 power modules, triggering button, indicator light and reset key.Pass through reset
Button user can upgrade the operation program in microcontroller to help client to realize different functions.
The utility model can help user to be quickly decoded automobile OBD data, and with of low cost, operation
Feature convenient, scalability is strong.
The utility model shape exquisiteness is small and exquisite, and using high quality chip, highly integrated, low consumption circuit design is easy to use,
Fast response time.Module can support most of vehicle on the market, support automobile real time data and statistical data, and data are steady
Qualitative height.Using standard UART interfaces connection convenient for integrated, AT instruction controls are easy to use.
Compared with prior art, the utility model has the following performance and feature：
1, each item data of automobile is obtained by OBD interfaces and automobile electric control system ECU communications；
2, a variety of automobile agreements, compatible vehicles most on the market are supported；
3, APP without carrying out any sensor operation, all submitted with ASCII character by all data of terminal；
4, vehicle real-time stream is supported to send automatically, the direct monitoring reception data of APP；
5, the statistical data such as instantaneous oil consumption, average fuel consumption and this fuel consumption, accumulative fuel consumption are supported；
6, this mileage travelled of support automobile, accumulative mileage travelled, total kilometrage；
7, anxious acceleration times, anxious deceleration number statistics are supported；
8, it supports driving habit data statistics, facilitates the driving habit of analysis and summary driver；
9, the diagnosis of vehicle trouble code is supported, two instruct the reading and removing that error code can be completed；
10, self-defined pattern switching, the privately owned instruction of spread are supported.
Description of the drawings
The utility model is described in further details with reference to the accompanying drawings of the specification：
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structure diagram of the utility model power circuit；
Fig. 3 is the structure diagram of the utility model CAN interface circuit；
Fig. 4 is the structure diagram of the utility model RS232 interface circuit.
Specific implementation mode
The utility model is described in further details with reference to Fig. 1 to Fig. 4：
The utility model provides a kind of car OBD interface intelligently parsing development board, which integrates the 2 road channels CAN, by
3Pin plug-in type connection terminals are drawn, the equipment that can be used for connecting 1 CAN-bus network or CAN-bus interfaces.
As shown in Figure 1, the connector mainly by control circuit, power module, CAN interface circuit, RS232 interface circuit with
And simulator circuit composition.
As shown in Fig. 2, auxiliary power circuit includes mainly LM2576 power modules, triggering button, indicator light and resets mould
Block.Wherein, the external 9-30V power supplies of input terminal connection of power module LM2576, output end and AMS1117 power modules
Input terminal is connected.The output end of AMS1117 power modules is connected with control circuit master chip STM32, for powering.Triggering is pressed
Key, indicator light, reseting module etc. are connected to control circuit master chip STM32, for realizing reset, switch mode, state instruction
Etc. purposes.
As shown in figure 3, CAN interface circuit includes mainly CAN transceiver PCA82C251.CAN transceiver one end and control electricity
Road master chip STM32 connections, the other end are connect with CAN bus.
As shown in figure 4, RS232 interface circuit includes mainly RS232 transceivers.RS232 transceivers one end and control circuit
Master chip STM32 connections, the other end are connect with RS232 buses.
As shown in Figure 1, Engine ECU and car OBD interface intelligently parsing development board are connected by CAN interface
It connects, at the same time, PC machine and development board are attached also by RS232 circuits.When Engine ECU data transmission to the development board
When, standard CAN data are forwarded to the ends PC after development board parses.
The above, only to illustrate the preferred embodiment of the utility model, its object is to allow person skilled in the art
Scholar can understand the content of the utility model and implement according to this, can not limit the scope of protection of the utility model with this.
Claims (4)
1. a kind of car OBD interface intelligently parsing development board, which is characterized in that be integrated with GCAN-600 decoder modules, including control
Circuit, auxiliary power circuit, CAN interface circuit, RS232 interface circuit and simulator circuit processed, the auxiliary power circuit point
Not Lian Jie control circuit, CAN interface circuit, RS232 interface circuit and simulator circuit, the control circuit includes microcontroller
Device MCU, encrypted memory module.
2. car OBD interface intelligently parsing development board according to claim 1, which is characterized in that the CAN interface circuit
It is connected with control circuit microcontroller STM32 by CAN transceiver PCA82C251 chips.
3. car OBD interface intelligently parsing development board according to claim 1, which is characterized in that the RS232 interface electricity
Road is connect by RS232 transceivers SP3232EEN with control circuit microcontroller STM32.
4. car OBD interface intelligently parsing development board according to claim 1, which is characterized in that the accessory power supply electricity
Road includes LM2576 power modules, triggering button, indicator light and reset key, and required power supply is 9-30V DC power supplies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820275202.0U CN207867302U (en) | 2018-02-27 | 2018-02-27 | Car OBD interface intelligently parsing development board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820275202.0U CN207867302U (en) | 2018-02-27 | 2018-02-27 | Car OBD interface intelligently parsing development board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207867302U true CN207867302U (en) | 2018-09-14 |
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ID=63455691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820275202.0U Active CN207867302U (en) | 2018-02-27 | 2018-02-27 | Car OBD interface intelligently parsing development board |
Country Status (1)
| Country | Link |
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| CN (1) | CN207867302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907190A (en) * | 2019-11-06 | 2020-03-24 | 清华大学 | Method for judging OBD remote online monitoring data quality |
-
2018
- 2018-02-27 CN CN201820275202.0U patent/CN207867302U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907190A (en) * | 2019-11-06 | 2020-03-24 | 清华大学 | Method for judging OBD remote online monitoring data quality |
| CN110907190B (en) * | 2019-11-06 | 2020-10-09 | 清华大学 | Method for judging OBD remote online monitoring data quality |
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