CAN message cycle detection system and CAN message cycle detection method

A detection system and detection method technology, applied in transmission systems, digital transmission systems, data exchange through path configuration, etc., can solve the problems of low CAN message cycle accuracy, data frame loss, easy to cause errors, etc., to avoid Non-real-time and erroneous effects

Pending Publication Date: 2018-07-20
OPTIMUM BATTERY CO LTD
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Problems solved by technology

However, manual detection may miss the middle data frame, resulting in data frame loss, which is easy to cause mistakes, and then makes the accuracy of the detected CAN message cycle lower

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  • CAN message cycle detection system and CAN message cycle detection method
  • CAN message cycle detection system and CAN message cycle detection method
  • CAN message cycle detection system and CAN message cycle detection method

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Embodiment Construction

[0014] In order to make the objectives, technical solutions and beneficial technical effects of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described implementation Examples are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0015] When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical fi...

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Abstract

The invention provides a CAN message cycle detection method, and the method comprises the following steps: receiving CAN message information which is sent by a plurality of nodes and comprises CAN message ID and CAN message basic information, configuring a time stamp for the received CAN message information and then storing the configured CAN message information in a memorizer; reading corresponding CAN message information from the memorizer in real time; calculating a time interval between the current CAN message information and the former CAN message information which have the same CAN message ID, and averaging the plurality of calculated time intervals and then outputting the CAN message cycle of corresponding CAN message ID. The CAN message cycle detection method provided by the invention has relatively high accuracy and efficiency. The invention also provides a CAN message cycle detection system.

Description

【Technical field】 [0001] The invention relates to the technical field of Controller Area Network (CAN), in particular to a CAN message cycle detection system and method. 【Background technique】 [0002] CAN (Controller Area Network, Controller Area Network) bus is widely used in industrial control and automotive bus communication, and different communication protocols are designed between CAN communication nodes in different fields for data interaction. Periodic CAN messages are usually used to update important information such as heartbeat signals between CAN nodes or real-time system information. Therefore, the sending cycle of CAN messages is strictly limited, and it is also the focus of the test project. At present, the detection method of CAN message period is usually artificial detection. For example, first read the message on the CAN bus through the adapter and save it as a list file locally, and then judge a message by the time stamp The communication interval, that ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/40
CPCH04L43/10H04L12/40078H04L43/50H04L2012/40215
Inventor 纪跃群王新锋饶睦敏李瑶李金林
Owner OPTIMUM BATTERY CO LTD
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