Vehicle-mounted network communication verification device of electric tractor

Abstract

The utility model provides a vehicle-mounted network communication verification device of an electric tractor, which comprises a heartbeat signal acquisition module and a message effective state quantity acquisition module, the heartbeat signal acquisition module is communicated with a first judgment module, and the message effective state quantity acquisition module is communicated with a second judgment module. The first judgment module and the second judgment module establish communication with a state display module; and according to whether the heartbeat signal state quantity sent by each controller in the vehicle-mounted network and the heartbeat signals of the first five step lengths are changed or not, jitter removal delay processing is carried out at the same time. And meanwhile, monitoring the effective state quantity of the message to jointly verify the effectiveness of message transmission in specific time, and carrying out de-jittering delay processing. In the two control strategies, the CAN communication message data can be considered to be normal if one of the conditions is met, so that the credibility of the vehicle-mounted network communication can be improved, and the efficient and accurate communication of the control signal can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of tractors, and in particular to an on-board network communication verification device for electric tractors. Background Technology

[0002] As smart agricultural machinery develops towards electrification, intelligence, and connectivity, the distributed electronic and electrical architecture carries the complex control functions of the tractor's electronic control system. The effectiveness and reliability of the message transmission of each controller are the guarantee for the normal driving and operation of the tractor. In particular, the reliability and effectiveness of CAN network communication data determine the accurate and normal transmission of signals from the tractor's electronic control system.

[0003] In vehicle communication networks, heartbeat signals are detected to monitor CAN communication and maintain the normal operation of the communication link, ensuring the stability and reliability of the vehicle's electronic control system. If no heartbeat signal is received for a period of time, it may indicate a communication interruption or a communication equipment malfunction, requiring troubleshooting. The vehicle controller's current strategy for determining the presence or absence of a heartbeat signal is to compare the current heartbeat signal value with the values ​​of the previous few steps. If they match within a specific timeframe, it indicates a normal heartbeat and reliable communication data. However, this specific timeframe is affected by factors such as message transmission speed and vehicle operating conditions, making precise calibration impossible and leading to false alarms. This can result in inaccurate control of various tractor electronic control systems.

[0004] Therefore, there is an urgent need for an onboard network communication verification device for electric tractors that can solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an on-board network communication verification device for electric tractors to solve the problems existing in the prior art.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides an on-board network communication verification device for electric tractors, including a heartbeat signal acquisition module and a message validity status acquisition module. The heartbeat signal acquisition module establishes communication with a first judgment module, and the message validity status acquisition module establishes communication with a second judgment module. Both the first judgment module and the second judgment module establish communication with a status display module.

[0008] Preferably, the heartbeat signal acquisition module establishes communication with each controller.

[0009] Preferably, both the first judgment module and the second judgment module are provided with a de-jittering delay processing module between them and the status display module.

[0010] The present invention achieves the following beneficial technical effects compared to the prior art:

[0011] This utility model provides an on-board network communication verification device for electric tractors, including a heartbeat signal acquisition module and a message validity status acquisition module. The heartbeat signal acquisition module establishes communication with a first judgment module, and the message validity status acquisition module establishes communication with a second judgment module. Both the first and second judgment modules establish communication with a status display module. The device performs de-jittering and delay processing based on whether the heartbeat signal status quantities emitted by each controller in the on-board network change compared to the heartbeat signals of the previous five steps. Simultaneously, it monitors the message validity status quantities at a specific time to jointly verify the validity of message transmission and performs de-jittering and delay processing. In the above two control strategies, meeting either condition is sufficient to consider the CAN communication message data normal, which improves the reliability of on-board network communication and ensures efficient and accurate communication of control signals. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A schematic diagram of an onboard network communication verification device for an electric tractor provided by this utility model. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] The purpose of this invention is to provide an on-board network communication verification device for electric tractors to solve the problems existing in the prior art.

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Example 1:

[0018] This embodiment provides an on-board network communication verification device for an electric tractor, including a heartbeat signal acquisition module and a message validity status acquisition module. The heartbeat signal acquisition module establishes communication with a first judgment module, and the message validity status acquisition module establishes communication with a second judgment module. Both the first judgment module and the second judgment module establish communication with a status display module.

[0019] In one implementation, the heartbeat signal acquisition module establishes communication with each controller.

[0020] In one implementation, a de-jitter delay processing module is provided between the first judgment module, the second judgment module, and the status display module.

[0021] This invention provides an onboard network communication verification device for electric tractors. It verifies the validity of message transmission by monitoring the status of the heartbeat signals from each controller in the onboard network and checking for changes in the heartbeat signals over the previous five steps, while simultaneously performing de-jittering and delay processing. At the same time, it monitors the valid status of messages at specific times to jointly verify the validity of message transmission, also performing de-jittering and delay processing. In these two control strategies, meeting either condition is sufficient to consider the CAN communication message data normal, thus improving the reliability of onboard network communication and ensuring efficient and accurate communication of control signals. This onboard network communication verification device for electric tractors effectively and accurately determines that the message heartbeat signal is normal and the communication data is reliable, solving the problem of false alarms caused by the inability to accurately calibrate the de-jittering delay value due to factors such as message transmission speed and vehicle operating conditions.

[0022] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An onboard network communication verification device for an electric tractor, characterized in that: It includes a heartbeat signal acquisition module and a message validity status acquisition module. The heartbeat signal acquisition module establishes communication with a first judgment module, and the message validity status acquisition module establishes communication with a second judgment module. Both the first judgment module and the second judgment module establish communication with a status display module.

2. The electric tractor on-board network communication verification device according to claim 1, characterized in that: The heartbeat signal acquisition module establishes communication with each controller.

3. The electric tractor on-board network communication verification device according to claim 1, characterized in that: Both the first judgment module and the second judgment module are provided with a de-jitter delay processing module between themselves and the status display module.

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