CN111806372A - OBD interface plug-pull state detection device based on distance sensor and detection method thereof - Google Patents
OBD interface plug-pull state detection device based on distance sensor and detection method thereof Download PDFInfo
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- CN111806372A CN111806372A CN202010723555.4A CN202010723555A CN111806372A CN 111806372 A CN111806372 A CN 111806372A CN 202010723555 A CN202010723555 A CN 202010723555A CN 111806372 A CN111806372 A CN 111806372A
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- distance sensor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
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Abstract
The utility model provides a OBD interface plug state detection device based on distance sensor, include plug, the external terminal of vehicle that correspond with vehicle OBD interface and be used for detecting with the distance sensor of vehicle OBD interface interval, the plug passes through the pencil and is connected with the external terminal of vehicle, distance sensor is fixed in the plug, the terminal surface of this plug has and is used for supplying distance sensor detect with the opening of vehicle OBD interface interval, distance sensor through the wiring with the external terminal of vehicle is connected, the wiring is located in the pencil. The invention can directly detect the plugging state of the vehicle OBD interface and the plug in real time and has high efficiency.
Description
Technical Field
The invention belongs to the technical field of vehicle OBD interface plug-pull state detection, and particularly relates to an OBD interface plug-pull state detection device based on a distance sensor and a detection method thereof.
Background
In order to make a breakthrough, manufacturers in the automobile industry have focused on creating the concept of "internet of vehicles" on the intelligent application and information layer level, and "automobile safety" is one of the most concerned functions. In order to improve the reliability, safety and maintainability of automobiles, the diagnosis of the vehicle OBD is regarded by manufacturers. The OBD diagnosis of the automobile is a vehicle-mounted automatic detection system which is extended for automobile fault diagnosis, the OBD is used for assisting maintenance personnel to diagnose the automobile initially, and along with the development of automobile science and technology and the application of automobile networking technology, the OBD diagnosis is implemented and applied more and more widely on the basis of driving performance and emission diagnosis. The OBD diagnosis monitors whether the automobile emission has a problem according to the running condition of the engine, the fault lamp is lightened once the problem occurs, meanwhile, the power assembly records the fault on the memory, the fault code is read out from the PCM through a certain program, and the automobile maintenance detection equipment carries out automobile maintenance according to the fault code.
The OBD diagnosis system enables the automobile fault diagnosis to be simple and uniform, maintenance personnel do not need to study a new system of each manufacturer specially, and the maintenance personnel can determine the fault property and the fault position quickly according to fault code prompt. However, the vehicle OBD diagnostic equipment needs to be correctly connected with an OBD port on a vehicle to carry out maintenance operation, but in the using process, the situation that an OBD port automobile diagnostic instrument cannot be normally connected often occurs, under the situation, the problem that whether communication failure or OBD interface contact failure exists cannot be directly judged, and the problem is brought to detection work of engineers. However, this method is complex, consumes much time, cannot directly obtain a feedback signal that the OBD interface is not correctly connected, and requires additional equipment for detection, and the detection efficiency is low.
In addition, with the continuous tightening of national regulations on the requirements of heavy motor vehicle exhaust emission regulation, the adoption of the additionally-installed vehicle-mounted terminal equipment for reading the engine OBD information, the operation data and the emission data in real time is a very effective monitoring means, specific requirements are already made on the pollutant emission limit value and the measurement method of the GB17691-2018 heavy diesel vehicle and the sixth stage of China for the heavy motor vehicles with national emission, the vehicle is required to be provided with the emission monitoring vehicle-mounted terminal when leaving the factory, and the terminal and the engine controller are required to have the removal prevention function, but in the actual use process, a driver often does not pull down the OBD interface.
Disclosure of Invention
In view of the above, the present invention provides an OBD interface plugging/unplugging state detection apparatus based on a distance sensor and a detection method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a OBD interface plug state detection device based on distance sensor, include plug, the external terminal of vehicle that correspond with vehicle OBD interface and be used for detecting with the distance sensor of vehicle OBD interface interval, the plug passes through the pencil and is connected with the external terminal of vehicle, distance sensor is fixed in the plug, the terminal surface of this plug has and is used for supplying distance sensor detect with the opening of vehicle OBD interface interval, distance sensor through the wiring with the external terminal of vehicle is connected, the wiring is located in the pencil.
The end face of the plug is provided with a vertical slotted hole, and the distance sensor is embedded in the slotted hole.
And the distance sensor is fixedly bonded with the slotted hole.
The slot is located at the center of the end face of the plug.
The distance sensor adopts an ultrasonic distance sensor.
The vehicle external terminal is an automobile diagnostic instrument or a vehicle-mounted terminal.
This scheme still relates to an OBD interface plug state detection method of OBD interface plug state detection device based on distance sensor, includes:
the distance detected by the distance sensor is received by the external vehicle terminal in real time, if the distance is smaller than or equal to a preset distance threshold value, the plug and the vehicle OBD interface are in a plug-in state, otherwise, the plug and the vehicle OBD interface are in a pull-out state.
The invention can directly detect the plugging state of the vehicle OBD interface and the plug in real time, has high efficiency, saves troubleshooting time for maintainers, and can further warn a driver that the interface can not be plugged in the driving process after the plugging state is obtained in time.
Drawings
The invention is described in detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of a connection structure of the distance sensor and the vehicle external terminal according to the present invention.
Detailed Description
As shown in fig. 1, an OBD interface plugging/unplugging state detection apparatus based on a distance sensor includes a plug 110 corresponding to a vehicle OBD interface, a vehicle external terminal 120, and a distance sensor 130 for detecting a distance from the vehicle OBD interface.
The plug 110 is connected to the vehicle external connection terminal 120 through a wire harness 140.
The distance sensor 130 is fixed in the plug 110, and an end face of the plug 110 has an opening for the distance sensor 130 to detect a distance from the vehicle OBD interface, as shown in fig. 1 and 2, the distance sensor 130 is connected to the vehicle external terminal 120 through a connection wire 141, and the connection wire 141 is arranged in the wire harness 140, that is, a connection wire is added in addition to the original connection wire of the wire harness.
The plug 110 is a male plug, so the end face is the end face within its socket.
Before plug 110 pegs graft with the vehicle OBD interface to pegging graft to the back, distance sensor 130 can diminish gradually with the interval of vehicle OBD interface, and likewise, peg graft back to pulling out, distance sensor 130 can grow gradually with the interval of vehicle OBD interface, so I can utilize this characteristic, and the detection distance through distance sensor 130 judges the plug state of OBD interface:
the vehicle external terminal 120 receives the distance detected by the distance sensor 130 in real time, if the distance is less than or equal to a preset distance threshold, the plug 110 and the vehicle OBD interface are in a plug-in state, otherwise, the plug 110 and the vehicle OBD interface are in a pull-out state.
The invention can directly detect the plugging state of the vehicle OBD interface and the plug in real time, has high efficiency, saves troubleshooting time for maintainers, and can further warn a driver that the interface can not be plugged in the driving process after the plugging state is obtained in time.
In this embodiment, the end surface of the plug 110 is provided with a vertical slot, the distance sensor 130 is embedded in the slot, and the opening of the slot is an opening for the distance sensor 130 to detect the distance to the vehicle OBD interface.
The distance sensor 130 is fixed by bonding to a slot hole located at the center of the end face of the plug. Of course, other locations are possible as long as the plug 110 does not interfere with the mating of the vehicle OBD interface.
In this embodiment, the vehicle external terminal 120 is an automobile diagnostic device or a vehicle-mounted terminal (such as a TBOX), and may be other devices that can be connected to a vehicle OBD interface through a wire harness and a plug.
In the present embodiment, the distance sensor 130 is an ultrasonic distance sensor, but a laser distance sensor, an infrared distance sensor, or the like may be used.
As shown in fig. 1, two wires are required for the distance sensor 130 to receive an instruction from the vehicle external terminal 120 or to transmit a detected distance to the vehicle external terminal 120, respectively.
The invention also relates to an OBD interface plug state detection method of the OBD interface plug state detection device based on the distance sensor, which comprises the following steps:
the vehicle external terminal 120 receives the distance detected by the distance sensor 130 in real time, if the distance is less than or equal to a preset distance threshold, the plug 110 and the vehicle OBD interface are in a plug-in state, otherwise, the plug 110 and the vehicle OBD interface are in a pull-out state.
In the present embodiment, the threshold value may be set to 1cm, but of course, other values may be set depending on the type of plug and the manufacturing accuracy.
However, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present invention, and that changes and modifications to the above described embodiments are intended to fall within the scope of the appended claims, provided they fall within the true spirit of the present invention.
Claims (7)
1. The utility model provides a OBD interface plug state detection device based on distance sensor, its characterized in that, include plug, the external terminal of vehicle that correspond with vehicle OBD interface and be used for detecting with the distance sensor of vehicle OBD interface interval, the plug passes through the pencil and is connected with the external terminal of vehicle, distance sensor is fixed in the plug, the terminal surface of this plug has and is used for supplying distance sensor detect with the opening of vehicle OBD interface interval, distance sensor through the wiring with the external terminal of vehicle is connected, the wiring is located in the pencil.
2. The OBD interface plugging and unplugging state detection device based on the distance sensor as claimed in claim 1, wherein the end face of the plug is provided with a vertical slot hole, and the distance sensor is embedded in the slot hole.
3. The OBD interface plugging and unplugging state detection device based on the distance sensor as claimed in claim 2, wherein the distance sensor is fixedly bonded with the slot hole.
4. The OBD interface plugging and unplugging state detection device based on the distance sensor as claimed in claim 3, wherein the slot is located at the center of the end face of the plug.
5. The OBD interface plugging and unplugging state detection device based on the distance sensor as claimed in claim 1 or 4, wherein the distance sensor is an ultrasonic distance sensor.
6. The OBD interface plugging and unplugging state detection device based on the distance sensor according to claim 5, wherein the vehicle external terminal is an automobile diagnostic apparatus or a vehicle-mounted terminal.
7. The method for detecting the plugging and unplugging state of the OBD interface of the device for detecting the plugging and unplugging state of the OBD interface based on the distance sensor according to any one of claims 1 to 5, comprising the following steps:
the distance detected by the distance sensor is received by the external vehicle terminal in real time, if the distance is smaller than or equal to a preset distance threshold value, the plug and the vehicle OBD interface are in a plug-in state, otherwise, the plug and the vehicle OBD interface are in a pull-out state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010723555.4A CN111806372A (en) | 2020-07-24 | 2020-07-24 | OBD interface plug-pull state detection device based on distance sensor and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010723555.4A CN111806372A (en) | 2020-07-24 | 2020-07-24 | OBD interface plug-pull state detection device based on distance sensor and detection method thereof |
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| CN111806372A true CN111806372A (en) | 2020-10-23 |
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| CN202010723555.4A Pending CN111806372A (en) | 2020-07-24 | 2020-07-24 | OBD interface plug-pull state detection device based on distance sensor and detection method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113715758A (en) * | 2021-09-02 | 2021-11-30 | 潍柴动力股份有限公司 | Wire harness fault detection method, device and system |
| CN116759852A (en) * | 2023-06-20 | 2023-09-15 | 深圳市盛格纳电子有限公司 | Wire end connector and plugging detection method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203204093U (en) * | 2013-03-28 | 2013-09-18 | 成都以达通讯设备有限公司 | Communication wire cable plugging connection head detection apparatus |
| CN105261894A (en) * | 2015-10-28 | 2016-01-20 | 崔子扬 | Cable connection device and monitoring system |
| CN106025698A (en) * | 2015-03-27 | 2016-10-12 | Smw-奥托布洛克紧固系统有限责任公司 | Plug-and-socket device |
| CN106093672A (en) * | 2015-04-29 | 2016-11-09 | 李秉钧 | A kind of grafting situation sensors having supplementary contact and elastic contact |
| CN207662995U (en) * | 2017-12-20 | 2018-07-27 | 无锡沃尔福汽车技术有限公司 | A kind of ECU jumper holders with disconnection detection function |
-
2020
- 2020-07-24 CN CN202010723555.4A patent/CN111806372A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203204093U (en) * | 2013-03-28 | 2013-09-18 | 成都以达通讯设备有限公司 | Communication wire cable plugging connection head detection apparatus |
| CN106025698A (en) * | 2015-03-27 | 2016-10-12 | Smw-奥托布洛克紧固系统有限责任公司 | Plug-and-socket device |
| CN106093672A (en) * | 2015-04-29 | 2016-11-09 | 李秉钧 | A kind of grafting situation sensors having supplementary contact and elastic contact |
| CN105261894A (en) * | 2015-10-28 | 2016-01-20 | 崔子扬 | Cable connection device and monitoring system |
| CN207662995U (en) * | 2017-12-20 | 2018-07-27 | 无锡沃尔福汽车技术有限公司 | A kind of ECU jumper holders with disconnection detection function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113715758A (en) * | 2021-09-02 | 2021-11-30 | 潍柴动力股份有限公司 | Wire harness fault detection method, device and system |
| CN113715758B (en) * | 2021-09-02 | 2024-04-16 | 潍柴动力股份有限公司 | Wire harness fault detection method, device and system |
| CN116759852A (en) * | 2023-06-20 | 2023-09-15 | 深圳市盛格纳电子有限公司 | Wire end connector and plugging detection method thereof |
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Application publication date: 20201023 |