Power supply and data communication method for on-board diagnostic (OBD) equipment and vehicle-mounted equipment

A vehicle-mounted equipment and data communication technology, which is applied to vehicle components, circuits or fluid pipelines, transportation and packaging, etc., can solve problems such as broken wire installation, safety hazards with batteries, etc., and achieve the effect of simplifying installation

Inactive Publication Date: 2019-07-30
JIANGSU DIGITAL DNA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the defects that the battery itself has potential safety hazards, or it needs to be installed with broken wires, and the driving conditions and faults of the vehicle itself are not involved, the present invention provides a method for power supply and data communication between OBD equipment and on-board equipment

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  • Power supply and data communication method for on-board diagnostic (OBD) equipment and vehicle-mounted equipment

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] This embodiment proposes a method for power supply and data communication between OBD equipment and vehicle-mounted equipment, such as figure 1 As shown, it includes:

[0023] The OBD device 1 obtains power from the vehicle battery 2, and outputs 5V / 12V voltage to the vehicle-mounted device 3 (smart rearview mirror / travel recorder / ADAS / HUD, etc.) through the power pin in the OBD connector 11. The vehicle battery 2 takes power directly, even if the vehicle is turned off, it can still supply power;

[0024] The OBD device 1 reads the ACC signal from the vehicle bus, and analyzes the read ACC signal to obtain the ACC analog signal that the vehicle-mounted device 3 can recognize, and through the ACC output pin in the OBD connector 11, the analyzed stable 5V / 12V The ACC analog signal output to the vehicle equipment 3;

[0025] The OBD device 1 read...

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Abstract

The invention discloses a power supply and data communication method for on-board diagnostic (OBD) equipment and vehicle-mounted equipment. The method includes the steps that power is obtained by theOBD equipment from a vehicle battery and supplied to the vehicle-mounted equipment; the OBD equipment provides precise and stable adaptive cruise control (ACC) analog output for the vehicle-mounted equipment and supports 5V/12V voltage output; electronic control unit (ECU) data are obtained in real time by the OBD equipment, output to the vehicle-mounted equipment and uploaded to the cloud end through 2G/3G/4G networks simultaneously; and GPS positioning information is read from the vehicle-mounted equipment and analyzed by the OBD equipment, and combined with acceleration information, drivingbehaviors are accurately counted and analyzed. According to the method, installation is simplified, wire breaking is not needed, precise ACC analog signals are provided, and a vehicle owner is assisted to know vehicle operation conditions and fault conditions.

Description

technical field [0001] The invention relates to a method for power supply and data interaction, in particular to a method for power supply and data communication between OBD equipment and vehicle-mounted equipment. Background technique [0002] More and more in-vehicle smart electronic products are on the market, including central control large-screen car computers, driving recorders, electronic dogs, smart rearview mirrors, ADAS, HUD, etc. [0003] At present, there are three main power supply methods for vehicle intelligent electronic products: [0004] 1. Powered by a battery, the on-board smart electronic product has a built-in battery, usually a lithium battery, or a battery slot, which can hold AA or AA batteries. However, the built-in battery has limited power and needs to be replaced frequently. [0005] 2. Take power from the fuse box and reading light. However, all wires need to be broken. Although the power supply can still be supplied after the flame is turned...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/03B60R16/023
CPCB60R16/03B60R16/023
Inventor 刘水香
Owner JIANGSU DIGITAL DNA TECH CO LTD
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