CN103888330A - Monitoring method for CAN-bus data transmission of automobile parts - Google Patents
Monitoring method for CAN-bus data transmission of automobile parts Download PDFInfo
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- CN103888330A CN103888330A CN201210561477.8A CN201210561477A CN103888330A CN 103888330 A CN103888330 A CN 103888330A CN 201210561477 A CN201210561477 A CN 201210561477A CN 103888330 A CN103888330 A CN 103888330A
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Abstract
The invention discloses a monitoring method for CAN-bus data transmission of automobile parts, that is, a CAN-bus configuration file is edited, wherein the configuration file includes database files of all automobile part messages on a CAN bus and the message configuration of the configuration file is identical with content included in automobile part messages on the CAN bus; a computer is connected with the CAN bus through a USB data line, and the automobile parts and the computer send messages to and receives messages from the CAN bus respectively and the computer compares the sent and received messages with the automobile part messages through the configuration file, and if the sent and received messages are identical with the automobile part messages, it shows that the CAN bus is reliable in performance of sending and receiving messages; and the computer receives messages which are sent and received by any automobile part on the CAN bus in a real-time manner and compares the messages with the CAN-bus configuration file and if the messages are identical with the CAN-bus configuration file, it shows that the CAN bus is accurate in data transmission. The method realizes CAN-bus message monitoring of any automobile part and ensures the accuracy of data transmission of the CAN bus; and the method is simple in structure, low in cost and convenient to use.
Description
Technical field
The present invention relates to a kind of method for supervising of auto parts and components CAN bus data transmission.
Background technology
Due to high-performance and the reliability of CAN bus, be widely used in the aspects such as industrial automation, automobile, boats and ships, Medical Devices.Along with automobile industry fast development, thereby strengthen the R&D intensity of the each type component of automobile, CAN bus is used as automobile electric bus communication protocol, for the transfer of data between the each type component of automobile, CAN bus is as the main communication protocol of automotive electrical system, so particularly important to the monitoring data transmission of CAN agreement.The monitoring of automobile CAN-bus transfer of data is at present made up of auto parts and components CAN bus and bus data monitoring software mostly, but the auto parts and components CAN bus that each data monitoring software must be corresponding unique, CAN communication protocol is fixed and cannot be carried out the configuration of CAN protocol massages.
Auto parts and components CAN bus data transmission at present adopts the monitoring of monitoring bus implement software, as CANalyzer monitoring software, Vector monitoring software and CANoe monitoring software etc., its advantage is powerful, can test the auto parts and components in any CAN bus by bus configuration, but its cost costliness, and a set of software and hardware is merely able to use a PC, reduce the utilization rate of software, and software application complicated operation.Its advantage of method for supervising of auto parts and components CAN bus and monitoring bus software composition is that development cost is low in addition, but the specific frame of auto parts and components CAN bus that each data monitoring must be corresponding unique.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method for supervising of auto parts and components CAN bus data transmission, utilize this method to realize the CAN bus message monitoring of any auto parts and components, guarantee the accuracy of CAN bus data transmission, and simple in structure, cheap, easy to use.
For solving the problems of the technologies described above, the method for supervising of auto parts and components CAN bus data transmission of the present invention comprises the steps:
Step 1, editor CAN bus configuration file, configuration file comprises the database file of all auto parts and components messages in CAN bus, each auto parts and components message comprises frame ID, frame format, data length, message name, start bit, length, data format, data type, amplification factor, side-play amount, minimum value, maximum, default value and unit, and the configuration of the message of configuration file is consistent with the CAN bus content that parts message comprises of getting on the car;
Step 2, computer connect CAN bus by usb data line, auto parts and components send four frame messages in CAN bus, computer receives this four frames message in CAN bus, according to CAN bus configuration file, compare four frame message data content and the cycles of sending and receiving by computer, the four frame message data contents that receive are consistent with CAN bus configuration file with the cycle, show that CAN bus receives message dependable performance;
Step 3, computer send two frame messages in CAN bus, auto parts and components receive this two frames message in CAN bus, according to CAN bus configuration file, compare two frame message data content and the cycles of sending and receiving by computer, the two frame message data contents that send are consistent with CAN bus configuration file with the cycle, show that CAN bus sends message dependable performance;
Step 4, computer receive the message of arbitrary auto parts and components sending and receiving in CAN bus in real time, and with the comparison of CAN bus configuration file, the message data content of arbitrary auto parts and components sending and receiving is consistent with CAN bus configuration file with the cycle, shows the transmission of CAN bus data accurately.
Because the method for supervising of auto parts and components CAN bus data transmission of the present invention has adopted technique scheme, edit CAN bus configuration file, configuration file comprises the database file of all auto parts and components messages in CAN bus, and the configuration of the message of configuration file is consistent with the CAN bus content that parts message comprises of getting on the car; Computer connects CAN bus by usb data line, auto parts and components and computer are respectively toward CAN bus sending and receiving message, computer compares sending and receiving message and auto parts and components message by configuration file, unanimously shows CAN bus sending and receiving message dependable performance; Computer receives the message of arbitrary auto parts and components sending and receiving in CAN bus in real time, and with the comparison of CAN bus configuration file, more show that CAN bus data transmission is accurately.This method has realized the CAN bus message monitoring of any auto parts and components, guarantees the accuracy of CAN bus data transmission, and simple in structure, cheap, easy to use.
Embodiment
The method for supervising of auto parts and components CAN bus data transmission of the present invention comprises the steps:
Step 1, editor CAN bus configuration file, configuration file comprises the database file of all auto parts and components messages in CAN bus, each auto parts and components message comprises frame ID, frame format, data length, message name, start bit, length, data format, data type, amplification factor, side-play amount, minimum value, maximum, default value and unit, and the configuration of the message of configuration file is consistent with the CAN bus content that parts message comprises of getting on the car;
If the message configuration format of CAN bus configuration file is as following table:
One of auto parts and components in table, are defined, the message data content of engine;
Step 2, computer connect CAN bus by usb data line, auto parts and components send four frame messages in CAN bus, computer receives this four frames message in CAN bus, according to CAN bus configuration file, compare four frame message data content and the cycles of sending and receiving by computer, the four frame message data contents that receive are consistent with CAN bus configuration file with the cycle, show that CAN bus receives message dependable performance;
Following table is auto parts and components toward the content that sends four frame messages in CAN bus:
To be computer receive the content of four frame messages from CAN bus to following table:
From above-listed two tables, its content and cycle are in full accord, show that CAN bus receives message dependable performance;
Step 3, computer send two frame messages in CAN bus, auto parts and components receive this two frames message in CAN bus, according to CAN bus configuration file, compare two frame message data content and the cycles of sending and receiving by computer, the two frame message data contents that send are consistent with CAN bus configuration file with the cycle, show that CAN bus sends message dependable performance;
Following table is computer toward the content that sends two frame messages in CAN bus:
To be auto parts and components receive the content of two frame messages from CAN bus to following table;
From above-listed two tables, its content and cycle are in full accord, show that CAN bus sends message dependable performance;
Step 4, computer receive the message of arbitrary auto parts and components sending and receiving in CAN bus in real time, and with the comparison of CAN bus configuration file, the message data content of arbitrary auto parts and components sending and receiving is consistent with CAN bus configuration file with the cycle, shows the transmission of CAN bus data accurately.
Can monitor in real time the transmitting-receiving message on automobile CAN-bus by this method, and by with editor's CAN bus configuration file comparison, to judge the accuracy of arbitrary auto parts and components transmitting-receiving message in CAN bus, thereby improve the reliability of whole-control system.
Claims (1)
1. a method for supervising for auto parts and components CAN bus data transmission, is characterized in that this method comprises the steps:
Step 1, editor CAN bus configuration file, configuration file comprises the database file of all auto parts and components messages in CAN bus, each auto parts and components message comprises frame ID, frame format, data length, message name, start bit, length, data format, data type, amplification factor, side-play amount, minimum value, maximum, default value and unit, and the configuration of the message of configuration file is consistent with the CAN bus content that parts message comprises of getting on the car;
Step 2, computer connect CAN bus by usb data line, auto parts and components send four frame messages in CAN bus, computer receives this four frames message in CAN bus, according to CAN bus configuration file, compare four frame message data content and the cycles of sending and receiving by computer, the four frame message data contents that receive are consistent with CAN bus configuration file with the cycle, show that CAN bus receives message dependable performance;
Step 3, computer send two frame messages in CAN bus, auto parts and components receive this two frames message in CAN bus, according to CAN bus configuration file, compare two frame message data content and the cycles of sending and receiving by computer, the two frame message data contents that send are consistent with CAN bus configuration file with the cycle, show that CAN bus sends message dependable performance;
Step 4, computer receive the message of arbitrary auto parts and components sending and receiving in CAN bus in real time, and with the comparison of CAN bus configuration file, the message data content of arbitrary auto parts and components sending and receiving is consistent with CAN bus configuration file with the cycle, shows the transmission of CAN bus data accurately.
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| CN201210561477.8A CN103888330B (en) | 2012-12-21 | 2012-12-21 | The monitoring method of auto parts and components CAN bus data transmission |
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| CN201210561477.8A CN103888330B (en) | 2012-12-21 | 2012-12-21 | The monitoring method of auto parts and components CAN bus data transmission |
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| CN103888330A true CN103888330A (en) | 2014-06-25 |
| CN103888330B CN103888330B (en) | 2018-07-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109634258A (en) * | 2018-11-30 | 2019-04-16 | 北京新能源汽车股份有限公司 | It is a kind of for the bus message method of calibration of hardware-in―the-loop test, apparatus and system |
| CN113740748A (en) * | 2021-09-03 | 2021-12-03 | 深圳市新威尔电子有限公司 | Battery detection method for sending message based on CAN bus |
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