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Signal control conversion device and signal control conversion method

A technology of signal control and conversion device, applied in the field of automobile communication, can solve the problem of lack of communication protocol conversion device, etc.

Active Publication Date: 2019-08-02
SHANGHAI HEQIAN ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The intelligent driving vehicle communication network will have multiple communication protocols coexisting, but currently there is a lack of conversion devices and conversions between different communication protocols, especially in the information transmission and mutual conversion between CAN bus and SOME / IP based on vehicle Ethernet

Method used

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  • Signal control conversion device and signal control conversion method
  • Signal control conversion device and signal control conversion method
  • Signal control conversion device and signal control conversion method

Examples

Experimental program
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Embodiment Construction

[0044] figure 1 It is a schematic diagram of the SOME / IP payload signal data packet format transmitted by Ethernet in the embodiment of the present invention;

[0045] The SOME / IP address identification code field Message ID includes the service identification code field Service ID and the method identification code field Method ID. The field is composed of a service identifier and a method identifier. The length is from 0 to 31 bits, accounting for 32 bits in total. . The service identification code field Service ID is used to mark the communication service and confirm the service used in the communication process. The method identification code field Method ID is used to mark the communication function used to confirm which function of the service is used during the communication process.

[0046] Sample: There are many services in the vehicle system, such as transmitters, wipers, and so on. These are services, and they are marked with a Service ID. The Method ID is used...

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PUM

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Abstract

The invention discloses a signal control conversion device. The signal control conversion device comprises a micro control processor, wherein the micro control processor is positioned between a CAN interface and an Ethernet interface, and comprises a SOME / IP transmission module which is used for unpacking and / or packing signals which are in accordance with a SOME / IP protocol, a CAN transmission module which is used for unpacking and / or packing signals which are in accordance with a CAN protocol, and a mapping table processing module which is in communication connection with the SOME / IP transmission module and the CAN transmission module, and is used for decoding mutual conversion between a signal of the SOME / IP protocol and a signal of the CAN protocol. Through adoption of the method, different similar data formats can be converted more easily, the conversion efficiency is improved, and the operation load of the system processing is lowered, so that the data transmission speed is improved, and the signal cable cost is lowered.

Description

technical field [0001] The invention belongs to the field of automobile communication, and in particular relates to a signal control conversion device and a signal control conversion method based on CAN information and SOME / IP in transmission in vehicle Ethernet. Background technique [0002] Due to the increasing number of controllers, sensors and actuators in modern cars, the number of wiring harnesses in the car has increased; and the network formed between the controllers in the car needs to communicate with each other, making the CAN controller local area network application born. Controller Area Network CAN (Controller Area Network) is a multi-host, asynchronous transmission local network developed by German Bosch Company for automotive applications, and is used for monitoring and control of vehicles. The original purpose of the German Bosch company to develop the CAN bus was to solve the communication problem between a large number of electronic devices on the car and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/21063
Inventor 肖文平许洪超黄飞张航
Owner SHANGHAI HEQIAN ELECTRONICS TECH CO LTD