CN215987015U - ABS diagnosis communication instrument - Google Patents
ABS diagnosis communication instrument Download PDFInfo
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- CN215987015U CN215987015U CN202121808361.0U CN202121808361U CN215987015U CN 215987015 U CN215987015 U CN 215987015U CN 202121808361 U CN202121808361 U CN 202121808361U CN 215987015 U CN215987015 U CN 215987015U
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Abstract
The utility model discloses an ABS diagnosis communicator, which is characterized by comprising: the circuit board is arranged in the shell; a connector connected with the circuit board; an antenna connected with the circuit board. The portable handheld device is powered by a diagnosis socket of an automobile, interacts with an upper computer in a wireless network mode, and completes diagnosis communication and control functions in wireless ABS detection.
Description
Technical Field
The utility model relates to the technical field of ABS diagnosis, in particular to an ABS diagnosis communicator.
Background
The diversity and complexity of ABS diagnostic communication sockets, at present, ABS diagnostic communication does not belong to the field of national standard enforcement, and no unified regulation and regulation basis exists. Due to the lack of national regulations, the ABS diagnosis socket type and the signal arrangement of automobile factories are extremely irregular, many automobile factories have a plurality of different automobile models, the models of ABS system manufacturers are inconsistent, and the socket and the signal arrangement are greatly different.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide an ABS diagnosis communicator which can effectively solve the problems in the background technology.
In order to achieve the purpose, the utility model adopts the technical scheme that:
an ABS diagnostic communicator, comprising:
the circuit board is arranged in the shell;
a connector connected with the circuit board;
an antenna connected with the circuit board.
Further, the connector is a first connector, a second connector or a third connector, the first connector is a 16P connector specified in ISO 9141-1, the second connector is a 16P standard connector specified in ISO 15031-3/J1962, and the third connector is a 9P connector specified in SAE J1939-13.
Further, still include the patch cord, the patch cord includes:
the first transfer line is an ISO 9141-1 transfer line and is provided with a 16P round head specified by ISO 9141-1.
A second patch cord that is an ISO 15031-3/SAE J1962 patch cord with a 16P spade head as specified in ISO 15031-3/SAE J1962.
And the third patch cord is an SAE J1939-13 patch cord and is provided with a 9P plug specified by SAE J1939-13.
Further, the circuit board comprises an ARM single board computer and an extension circuit board.
Further, the model of the ARM single board computer is BeagleBone Black Wireless.
Further, the expansion circuit board is connected with the ARM single board computer through P8 and P9 ports.
Furthermore, the expansion circuit board is provided with a power supply adjusting circuit used for adjusting the power supply of the automobile battery to +5V power supply to be supplied to the ARM single board computer, and the expansion circuit board supplies power to the ARM single board computer through 7 pins and 8 pins of P9 of the ARM single board computer.
Further, the power supply further comprises a switch power supply, the model of the switch power supply is LM2576, the switch power supply is used for supplying power to the main board, the linux board and the touch screen, the 3.3V voltage stabilizing circuit is used for supplying power to the TJA1044GT/3 and the L9637 chip, the power supply further comprises indicator lamps, the indicator lamps comprise a first indicator lamp and a second indicator lamp, and the first indicator lamp and the second indicator lamp are 5V power supply indicator lamps and 3.3V power supply indicator lamps respectively.
Furthermore, two CAN transceivers are additionally arranged on the ARM single board computer, the CAN transceiver is TJA1044GT/3 in model, an STB pin is connected with a DO pin of the ARM single board computer, and the pin is used for controlling a standby mode or a normal mode of the CAN transceiver to realize CAN communication between the single board computer and the vehicle-mounted ECU.
Further, the electronic device also comprises a button, and the button is connected with the circuit board.
Compared with the prior art, the utility model has the following beneficial effects:
the ABS diagnosis communicator is a portable handheld device, is powered by a diagnosis socket of an automobile, and interacts with an upper computer in a wireless network mode.
2. And the ABS diagnosis communication instrument completes the software and hardware interface from the automobile ABS diagnosis communication bus to the WiFi network signal. The data forwarding is fast, and the data delay does not exceed 25 milliseconds.
3. The ABS diagnosis communication instrument is matched with upper computer software to jointly complete diagnosis communication and control functions in wireless ABS detection.
4. The software and hardware of the ABS diagnosis communication instrument can be compatible with all known ABS diagnosis communication protocols, and can be upgraded and expanded to adapt to new protocols.
5. The ABS diagnosis communicator is compatible with all ABS diagnosis communication protocols on one device, can save time cost in the aspects of site investigation, test, purchase and the like while saving purchase cost, can improve the use feeling of customers, can meet different site requirements,
drawings
Fig. 1 is a schematic structural diagram of an ABS diagnostic communicator according to the present invention.
Fig. 2 is an exploded view of an ABS diagnostic communicator according to the present invention.
Fig. 3 is a pin connection diagram of an ARM single board computer of the ABS diagnostic communicator according to the present invention.
In the figure: 1.a housing; 2. an antenna; 3. a connector; 4. a circuit board; 5. a button; 6. And an indicator light.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.
An ABS diagnostic communicator as shown in fig. 1-3, comprising:
the circuit board comprises a shell 1, wherein a circuit board 4 is arranged in the shell 1;
a connector 3, wherein the connector 3 is connected with a circuit board 4;
an antenna 2, the antenna 2 being connected to the circuit board 4.
Wherein the connector 3 is a first connector 3, a second connector 3 or a third connector 3, the first connector 3 is a 16P connector 3 specified in ISO 9141-1, the second connector 3 is a 16P standard connector 3 specified in ISO 15031-3/J1962, and the third connector 3 is a 9P connector 3 specified in SAE J1939-13.
Wherein, still include the patch cord, the patch cord includes:
the first transfer line is an ISO 9141-1 transfer line and is provided with a 16P round head specified by ISO 9141-1.
A second patch cord that is an ISO 15031-3/SAE J1962 patch cord with a 16P spade head as specified in ISO 15031-3/SAE J1962.
And the third patch cord is an SAE J1939-13 patch cord and is provided with a 9P plug specified by SAE J1939-13.
The circuit board 4 comprises an ARM single board computer and an extended circuit board.
Wherein the model of the ARM single board computer is BeagleBone Black Wireless.
The expansion circuit board is connected with the ARM single board computer through P8 and P9 ports.
The expansion circuit board is provided with a power supply adjusting circuit and is used for adjusting the power supply of the automobile battery to +5V power supply to be supplied to the ARM single board computer, and the expansion circuit board supplies power to the ARM single board computer through 7 pins and 8 pins of P9 of the ARM single board computer.
The display device further comprises a switch power supply, the model of the switch power supply is LM2576, the switch power supply is used for supplying power to the mainboard, the I inux board and the touch screen, the 3.3V voltage stabilizing circuit is used for supplying power to the TJA1044GT/3 and the L9637 chip, the display device further comprises an indicator lamp 6, the indicator lamp 6 comprises a first indicator lamp and a second indicator lamp, and the first indicator lamp and the second indicator lamp are respectively a 5V power supply indicator lamp and a 3.3V power supply indicator lamp.
The CAN transceiver is additionally provided with two CAN transceivers, the CAN transceiver is TJA1044GT/3 in model, an STB pin is connected with a DO pin of the ARM single board computer, and the pin is used for controlling a standby mode or a normal mode of the CAN transceiver to realize CAN communication between the single board computer and the vehicle-mounted ECU.
The circuit board further comprises a button 5, and the button 5 is connected with the circuit board 4.
The ABS diagnosis communication instrument adopts a flexible connection mode in design, so that different field requirements are met; the particularity of ABS diagnostic communication, ABS detection requires control of a brake force control valve of a vehicle-mounted ABS system, thereby controlling the output of brake force. These control command sequences require a relatively strict time interval, the minimum time interval being 25 ms, which is not achieved by all OBD diagnostic test devices on the market today, and the ABS diagnostic communicator communication rate: CAN lines 250kbps, 500 kbps; k line 10.4kbps, 5 bps. The ABS diagnosis communication instrument adopts a high-performance micro ARM single board computer, and realizes the diagnosis communication function based on a stable and reliable embedded Linux distribution operating system.
The interface device is composed of the device itself, a plug (with a connecting line of more than 2 meters) to an on-board ABS diagnostic socket, the ABS diagnostic socket mainly has three types of 16P connectors (circular) specified by ISO 9141-1, 16P standard connectors (flat) specified by ISO 15031-3/J1962 and 9P connectors (circular) specified by SAE J1939-13, and the interface device is to be provided with 3 types of patch cords (adapters) aiming at the three types of sockets:
an ISO 9141-1 patch cord with a 16P round head as specified in ISO 9141-1.
ISO 15031-3/SAE J1962 patch cords with 16P flat ends as specified in ISO 15031-3/SAE J1962 (for diesel and gasoline applications).
SAE J1939-13 patch cord with a 9P plug (round) as specified by SAE J1939-13.
The wiring terminal can be plugged and pulled out (the spring or the screw is a quick-wear part, and is convenient to replace).
The press type spring terminal is adopted, so that the contact is tighter, screws do not need to be screwed, and the tool requirement of field wiring is reduced as much as possible.
The circuit board is planned into two parts: ARM single board computer and extension circuit board.
The model of the single board computer selected by the ARM single board computer is BeagleBone Black Wireless.
The expansion circuit board completes the following functions:
1. and power supply, namely, acquiring a direct-current power supply (12V or 24V) of the vehicle-mounted storage battery through the ABS diagnostic communication socket, converting the direct-current power supply into a power supply (5V/3A) required by the BeagleBone Black Wireless single board computer through the voltage stabilizing circuit, and supplying power to the ARM single board computer.
2. A diagnostic communication interface circuit. Completing the circuit interface with the vehicle-mounted diagnostic communication bus.
3. A push-button switch and an indicator light circuit.
The ARM single board computer selects BeagleBone Black Wireless, which is called BBBW for short.
The BBBW is basically the same as the BeagleBone Black interface, the former only eliminates the wired ethernet interface and adds WiFi and bluetooth, so most of the data can refer to the latter. The expansion circuit board in the product is connected with the BBBW through P8 and P9 ports. The P8 and P9 pins to be used are shown in fig. 3.
The power supply adjusting circuit is positioned on the expansion circuit board and is responsible for adjusting the power supply (12V or 24V, and the maximum can reach 28V.) of the automobile battery into a power supply of +5V to supply to the BBBW. The +5V supply should output at least 2A current, the design target 3A (HDMI display reserved).
The expansion circuit board supplies power to the BBBW through 7 and 8 pins (VDD _5V) of P9 of the BBBW.
The circuits on the extended circuit board, in principle, do not use the output power supply (SYS _5V, VDD _3V3B) of the BBBW, and if necessary, these voltages should design the voltage stabilizing circuit on the extended circuit board by themselves and ensure that the power supply capability to the BBBW is not influenced by the outside by at least 5V/2A.
The actual on-board ABS diagnostic socket is basically referred to this, but there are exceptions, and even irregular diagnostic sockets are present. The method is compatible with various situations in the field through a plurality of diagnostic plugs and flexible wiring between the diagnostic plugs and the interface equipment.
Switching power supply of power scheme: LM 2576.
The scheme is used for supplying power to the main board, the linux board and the touch screen, and the actual power supply effect is good. The 3.3V voltage stabilizing circuit is used for supplying power to the TJA1044GT/3 and L9637 chips. The LED1 and the LED2 are respectively 5V power supply indicator lamps and 3.3V power supply indicator lamps, so that whether 5V power supply and 3.3V power supply are normal or not can be conveniently observed.
Designing a CAN interface circuit:
because the BBBW has two CAN (controllers), CAN finish the design of CAN communication circuit only needing to increase two-way CAN transceivers.
The CAN transceiver selects TJA1044GT/3, and the STB pin (internally pulled up to power VIO) is directly connected with DO of BBBW. The pin controls a standby mode or a normal mode of the CAN transceiver, and the chip is used for realizing CAN communication between the single board computer and the vehicle-mounted ECU.
The design of a button switch, a state indicator lamp and a butt circuit of a single board computer:
the P1 socket is an external diagnosis line and equipment butt joint terminal; the P5 and P6 sockets are butt-joint terminals of the extension board and the single board computer, and realize the functions of supplying power to the single board computer and transmitting data; p3 and P4 are connected with the wiring terminal of the button switch to realize the signal input from the equipment to the upper computer software; p2 is an indicator light terminal, and the device designs four indicator lights, can make up out 16 states, can correspond 16 kinds of devices and need the information of conveying.
The ABS diagnosis communicator has the following advantages:
1. the ABS diagnosis communicator is a portable handheld device, is powered by a diagnosis socket of an automobile, and interacts with an upper computer in a wireless network mode.
2. And the ABS diagnosis communication instrument completes the software and hardware interface from the automobile ABS diagnosis communication bus to the WiFi network signal. The data forwarding should be as fast as possible with data delay not exceeding 25 milliseconds.
3. The ABS diagnosis communication instrument is matched with upper computer software to jointly complete diagnosis communication and control functions in wireless ABS detection.
4. The software and hardware of the ABS diagnosis communication instrument can be compatible with all known ABS diagnosis communication protocols, and can be upgraded and expanded to adapt to new protocols.
5. The ABS diagnosis communicator is compatible with all ABS diagnosis communication protocols on one device, so that the purchasing cost is saved, the time cost in the aspects of on-site investigation, test, purchase and the like can be saved, and the use experience of a client can be improved
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. An ABS diagnostic communicator, comprising:
the circuit board is arranged in the shell;
a connector connected with the circuit board;
an antenna connected with the circuit board;
the connector is a first connector, a second connector or a third connector, the first connector is a 16P connector specified in ISO 9141-1, the second connector is a 16P standard connector specified in ISO 15031-3/J1962, and the third connector is a 9P connector specified in SAE J1939-13;
still include the patch cord, the patch cord includes:
the first transfer line is an ISO 9141-1 transfer line and is provided with a 16P round head specified by ISO 9141-1;
a second patch cord that is an ISO 15031-3/SAE J1962 patch cord with a 16P spade head as specified in ISO 15031-3/SAE J1962;
and the third patch cord is an SAE J1939-13 patch cord and is provided with a 9P plug specified by SAE J1939-13.
2. The ABS diagnostic communicator of claim 1, wherein said circuit board comprises an ARM board computer and an expansion circuit board.
3. The ABS diagnostic communicator of claim 2, wherein said ARM single board computer is of the BeagleBone Black wires model.
4. The ABS diagnostic communicator of claim 2, wherein said expansion circuit board is connected to an ARM board computer via a P8, P9 port.
5. The ABS diagnostic communicator of claim 3, wherein the expansion circuit board has a power regulation circuit for regulating the vehicle battery power to +5V for the ARM single board computer, the expansion circuit board powering the ARM single board computer via the 7, 8 pins of the ARM single board computer P9.
6. The ABS diagnostic communicator of claim 1, further comprising a switching power supply, model LM2576, for powering the main board, the linux board and the touch screen, and a 3.3V voltage regulator circuit for powering the TJA1044GT/3 and the L9637 chips, and further comprising indicator lights, wherein the indicator lights comprise a first indicator light and a second indicator light, and the first indicator light and the second indicator light are 5V and 3.3V power indicator lights, respectively.
7. The ABS diagnostic communicator of claim 3, wherein the ARM single board computer is provided with a CAN transceiver, the CAN transceiver is of type TJA1044GT/3, and an STB pin is connected to a DO pin of the ARM single board computer, and the pin is used for controlling a standby mode or a normal mode of the CAN transceiver to realize CAN communication between the single board computer and the vehicle-mounted ECU.
8. The ABS diagnostic communicator of claim 1, further comprising a button, said button being connected to said circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121808361.0U CN215987015U (en) | 2021-08-04 | 2021-08-04 | ABS diagnosis communication instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121808361.0U CN215987015U (en) | 2021-08-04 | 2021-08-04 | ABS diagnosis communication instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215987015U true CN215987015U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121808361.0U Active CN215987015U (en) | 2021-08-04 | 2021-08-04 | ABS diagnosis communication instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215987015U (en) |
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2021
- 2021-08-04 CN CN202121808361.0U patent/CN215987015U/en active Active
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