Network management timing parameter optimization control method and device, equipment and storage medium

Abstract

The application discloses a network management timing parameter optimization control method and device, equipment and a storage medium, relates to the field of automobile electronic control system development and test technology, and comprises the following steps: obtaining message type information sending state and stop event state; determining target network management message stop sending time and target network management message resending time based on the message type information sending state and the stop event state; determining a test time value based on the target network management message resending time and the target network management message stop sending time, and controlling system hibernation based on the test time value. The application accurately determines the target network management message stop sending time and resending time, and then calculates the test time value, so as to optimize the system hibernation, more accurately capture the network management timing parameter, significantly improve the test accuracy, reduce the problem false alarm caused by test error, and optimize the performance of whole vehicle network management.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automotive electronic control system development and testing, and particularly relates to a network management timing parameter optimization control method and device, equipment and a storage medium. BACKGROUND

[0002] In modern vehicles, as the number and complexity of electronic control units continue to increase, precise timing control of network management is required to ensure system stability and efficiency. In the network management of automotive development system architecture, testing of timing parameters is a very important verification item, which not only determines the time when the electronic control unit enters sleep after power-off, but also involves whether the vehicle electronic control unit software meets the "same sleep" sleep mechanism. Therefore, according to the time definition description of jumping from the preparation sleep state to the preparation bus sleep mode, the test case development and verification can be carried out. The timer is started immediately after the electronic control unit enters the network mode, and the timer is restarted after a frame of network management message is successfully sent or received. Therefore, in the preparation sleep state, if the timer times out, the electronic control unit enters the preparation bus sleep mode. Therefore, the test of the timing parameter is essentially the test of the time when the electronic control unit jumps from the preparation sleep state to the preparation bus sleep mode. Therefore, the key point is how to obtain the time when the electronic control unit enters the preparation sleep state and the time when the electronic control unit enters the preparation bus sleep mode during testing.

[0003] At present, the existing method for testing the timing parameter is to continuously monitor the communication of the electronic control unit, record the time of the last frame of network management message sent by the electronic control unit after power-off, that is, record the time when the electronic control unit enters the preparation sleep state, and then record the time of the last frame of application message sent, that is, record the time when the electronic control unit enters the preparation bus sleep mode, so as to calculate the timeout timing parameter.

[0004] However, although the existing method is simple, intuitive and easy to implement, it has certain limitations in actual application. In combination with actual testing experience, the method of taking the last frame of application message sent by the electronic control unit as the judgment method for entering the preparation bus sleep mode is relatively rough, which is easy to cause too large test error due to the large application message period of the electronic control unit, thereby causing the risk of false alarm of the electronic control unit having a problem, affecting the reliability and performance of the vehicle. Therefore, how to more accurately obtain the network management timing parameter becomes a problem to be solved.

[0005] The above content is only used to assist in understanding the technical solutions of the present application, and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0006] The main purpose of the present application is to provide a network management timing parameter optimization control method, device, equipment and storage medium, aiming at solving the technical problem of how to more accurately obtain network management timing parameters.

[0007] To achieve the above purpose, the present application provides a network management timing parameter optimization control method, which comprises:

[0008] Obtain the message type information sending state and the stop event state;

[0009] Determine the target network management message stop sending time and the target network management message re-sending time based on the message type information sending state and the stop event state;

[0010] Determine the test time value based on the target network management message re-sending time and the target network management message stop sending time, and control the system to sleep based on the test time value.

[0011] In an embodiment, the step of obtaining the message type information sending state and the stop event state comprises:

[0012] Obtain the electronic control unit power-on state, communication state and wake-up event;

[0013] Send the message type information based on the electronic control unit power-on state and the communication state, and determine the message type information sending state, wherein the message type information comprises application messages and network management messages;

[0014] Determine the stop event state by stopping the wake-up event, wherein the wake-up event comprises local wake-up events and remote wake-up events.

[0015] In an embodiment, the step of determining the target network management message stop sending time and the target network management message re-sending time based on the message type information sending state and the stop event state comprises:

[0016] Obtain the target dwell time;

[0017] Determine the target network management message stop sending time and the monitoring network management message sending state based on the target dwell time, the message type information sending state and the stop event state;

[0018] Determine the target network management message re-sending time based on the target dwell time and the monitoring network management message sending state.

[0019] In an embodiment, the step of determining the target network management message stop sending time and the monitoring network management message sending state based on the target dwell time, the message type information sending state and the stop event state comprises:

[0020] In the case that the message type information sending state is successful sending of application messages and network management messages and the stop event state is stopping of a local wake-up event or a remote wake-up event, a target network management message stop sending time is recorded by the test device;

[0021] Based on the target stay time, a test device is used to simulate sending of a monitoring network management message, and a monitoring network management message sending state is obtained.

[0022] In an embodiment, the step of determining a target network management message resending time based on the target stay time and the monitoring network management message sending state further comprises:

[0023] In the case that the monitoring network management message sending state is unsuccessful sending, the target stay time is increased by a preset time length, and the automated test is performed again;

[0024] In the case that the monitoring network management message sending state is successful sending, a current sending time is recorded to obtain a target network management message resending time.

[0025] In an embodiment, the step of determining a test time value based on the target network management message resending time and the target network management message stop sending time, and controlling system hibernation based on the test time value comprises:

[0026] A target test time interval is obtained;

[0027] The test time value is obtained by subtracting the target network management message stop sending time from the target network management message resending time;

[0028] Based on the test time value and the target test time interval, a verification state is determined by verifying system hibernation performance, and system hibernation is controlled based on the verification state.

[0029] In an embodiment, the step of determining a verification state by verifying system hibernation performance based on the test time value and the target test time interval comprises:

[0030] In the case that the test time value is not in the target test time interval, the verification state is failed, and system hibernation performance needs to be improved;

[0031] In the case that the test time value is in the target test time interval, the verification state is passed, and system hibernation performance does not need to be improved.

[0032] In addition, to achieve the above object, the application further provides a network management timing parameter optimization control device, which comprises:

[0033] The acquisition module is configured to acquire a message type information sending state and a stop event state.

[0034] The processing module is configured to determine a target network management message stop sending time and a target network management message re-sending time based on the message type information sending state and the stop event state.

[0035] The execution module is configured to determine a test time value based on the target network management message re-sending time and the target network management message stop sending time, and control the system to sleep based on the test time value.

[0036] In addition, to achieve the above-mentioned purpose, the present application further provides a network management timing parameter optimization control device, which comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the computer program is configured to implement the steps of the network management timing parameter optimization control method as described above.

[0037] In addition, to achieve the above-mentioned purpose, the present application further provides a storage medium, which is a computer readable storage medium, and the storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the network management timing parameter optimization control method as described above.

[0038] The one or more technical solutions provided by the present application have at least the following technical effects:

[0039] The network management timing parameter optimization control method provided by the present application acquires a message type information sending state and a stop event state, determines a target network management message stop sending time and a target network management message re-sending time based on the message type information sending state and the stop event state, determines a test time value based on the target network management message re-sending time and the target network management message stop sending time, and controls the system to sleep based on the test time value. The present application accurately determines the target network management message stop sending time and the re-sending time by acquiring the message type information sending state and the stop event state, and then calculates the test time value to optimize the system sleep, more accurately captures the network management timing parameter, significantly improves the test accuracy, reduces the problem false alarm caused by test error, optimizes the performance of the whole vehicle network management, and ensures the effectiveness of the whole vehicle sleep mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0040] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings are only for the purpose of illustrating the embodiments of the present application, and for the person of ordinary skill in the art, other drawings can be obtained without creative labor.

[0042] Figure 1 The flowchart provided by the network management timing parameter optimization control method embodiment one of the present application;

[0043] Figure 2 The flowchart provided by the network management timing parameter optimization control method embodiment two of the present application;

[0044] Figure 3 The brief flowchart of the network management timing parameter optimization control method provided by the embodiment of the present application;

[0045] Figure 4 The network management timing parameter optimization control method scene diagram of the present application;

[0046] Figure 5 The module structure diagram of the network management timing parameter optimization control device of the embodiment of the present application;

[0047] Figure 6 The device structure diagram of the hardware running environment involved in the network management timing parameter optimization control method in the embodiment of the present application.

[0048] The purpose of the present application, the function characteristics and the advantages will be further explained with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0049] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application, and are not used to limit the present application.

[0050] In order to better understand the technical solutions of the present application, the following will be described in detail with reference to the drawings and specific embodiments of the specification.

[0051] The main solution of the embodiment of the present application is: obtaining the message type information sending state and the stop event state; determining the target network management message stop sending time and the target network management message re sending time based on the message type information sending state and the stop event state; determining the test time value based on the target network management message re sending time and the target network management message stop sending time, and controlling the system to sleep based on the test time value.

[0052] In the embodiment, for the convenience of description, the following takes the identification network management timing parameter optimization control device as the execution subject for elaboration.

[0053] Since the prior art is simple, intuitive and easy to implement, but has certain limitations in actual application, the last frame of application message sent by the electronic control unit is taken as the judgment method for entering the preparation bus sleep mode, which is relatively rough, and the test error is too large due to the large application message cycle of the electronic control unit, which leads to the risk of false alarm of the electronic control unit, and affects the reliability and performance of the vehicle.

[0054] The application provides a solution, obtaining message type information sending state and stop event state; determining target network management message stop sending time and target network management message re-sending time based on the message type information sending state and the stop event state; determining test time value based on the target network management message re-sending time and the target network management message stop sending time, and controlling system sleep based on the test time value.

[0055] From the above embodiment, the application can accurately determine the target network management message stop sending time and re-sending time by obtaining the message type information sending state and stop event state, and then calculate the test time value to optimize the control system sleep, more accurately capture the network management timing parameter, significantly improve the test accuracy, reduce the problem false alarm caused by test error, optimize the performance of the vehicle network management, and ensure the effectiveness of the vehicle sleep mechanism.

[0056] Based on this, the embodiment of the application provides a network management timing parameter optimization control method, referring to Figure 1 , Figure 1 The flowchart of the first embodiment of the network management timing parameter optimization control method of the application.

[0057] In this embodiment, the network management timing parameter optimization control method includes steps S10-S30:

[0058] Step S10, obtaining message type information sending state and stop event state;

[0059] It should be noted that the message type information sending state reflects the characteristics of the sending state of the application message and the network management message in communication, and the stop event state reflects the characteristics of the response state of the wake-up event.

[0060] It can be understood that the message type information sending state can represent the activity level and communication mode of the electronic control unit in network communication, and the message type information sending state includes the sending state of the application message and the sending state of the network management message, wherein the application message includes data directly related to vehicle functions, and the network management message includes network management tasks of the ECU, such as state synchronization and error handling.

[0061] Additionally, it is to be noted that the stop event state includes stopping a local wake-up event and stopping a remote wake-up event, wherein the local wake-up event refers to an event triggered by an internal factor of the vehicle, such as opening of a door and starting of an engine, and the remote wake-up event is triggered by an external factor, such as a remote control signal.

[0062] For the convenience of understanding, the message type information sending state and the stop event state are taken as examples for illustration, wherein the information collection device is an information collection module, and the storage device is a memory.

[0063] The information collection module acquires an electronic control unit power-on state, such as ECU power-on and ECU power-off, acquires a communication state, such as stable communication and unstable communication, and acquires a wake-up event, such as a local wake-up event and a remote wake-up event. Based on the electronic control unit power-on state and the communication state, a message type information, such as an application App message and a network management NM message, is sent, i.e. the ECU sends the App message and the NM message, so as to determine a message type information sending state, such as normal sending of the application App message and normal sending of the network management NM message, non-normal sending of the application App message and normal sending of the network management NM message, normal sending of the application App message and non-normal sending of the network management NM message, and non-normal sending of the application App message and non-normal sending of the network management NM message. Then, the wake-up event is stopped to determine a stop event state, such as successful stopping of the local wake-up event, successful stopping of the remote wake-up event, unsuccessful stopping of the local wake-up event, and unsuccessful stopping of the remote wake-up event. Based on the message type information sending state and the stop event state, subsequent processing is performed.

[0064] In a feasible implementation, the step S10 can include steps A11-A13:

[0065] In step A11, an electronic control unit power-on state, a communication state, and a wake-up event are acquired.

[0066] It is to be noted that the electronic control unit power-on state reflects a feature of power supply of the electronic control unit and a starting preparation state, the communication state reflects a feature of communication capability and efficiency in the network, and the wake-up event reflects a feature of an activation capability from a low power consumption or sleep state.

[0067] It can be understood that the power-on state of the electronic control unit can represent whether the ECU has been powered on and completed the start-up sequence, so as to be ready for network communication and execution of vehicle tasks, i.e. to ensure that the ECU can receive and send network messages, the communication state represents whether the ECU can successfully establish and maintain network connection, and the stability and data transmission efficiency of the connection, and can identify the bottleneck and fault point in the network, so as to take corresponding optimization measures, the wake-up event can be triggered by physical operation inside the vehicle, such as opening the door and starting the engine, or by an external signal, such as a remote control instruction, monitoring the state of the wake-up event can manage the power consumption of the ECU, and ensure that the ECU can respond quickly when needed.

[0068] In addition, it should be noted that operating the ECU in a power-on state and maintaining a stable communication connection can speed up the response speed of the ECU to the wake-up event, thereby improving the start-up and running efficiency of the whole vehicle, and by monitoring the wake-up event, the power consumption of the ECU can be more effectively managed, unnecessary energy consumption can be avoided, and the battery life can be prolonged, and by monitoring the communication state, problems in network connection can be found and solved in time, the stability of the network and the reliability of data transmission can be improved, potential system problems can be found in advance, so that preventive measures can be taken to reduce system failures and improve the reliability and safety of the whole vehicle, and the driving and riding experience can be significantly improved.

[0069] Step A12, based on the power-on state of the electronic control unit and the communication state, sending message type information to determine the message type information sending state, the message type information including application message and network management message;

[0070] It can be understood that by accurately determining the message sending state information, the network behavior of the ECU can be diagnosed and monitored, so that the target network management message stop sending time and the target network management message re-sending time can be more accurately measured.

[0071] Step A13, stopping the wake-up event to determine the stop event state, the wake-up event including local wake-up event and remote wake-up event.

[0072] It can be understood that by accurately controlling the wake-up event, the power consumption of the ECU can be managed, and the ECU can respond quickly when needed, while avoiding unnecessary energy consumption, prolonging the battery life, and significantly improving the driving and riding experience.

[0073] Step S20, based on the message type information sending state and the stop event state, determining the target network management message stop sending time and the target network management message re-sending time;

[0074] It should be noted that the target network management message stop sending time reflects the feature of the transition from the active network communication state to the low power consumption or sleep state, and the target network management message re-sending time reflects the feature of the recovery from the low power consumption state to the active network communication state.

[0075] It can be understood that the ECU will restart the timer and maintain in the ready sleep state after receiving the valid network management message in the ready sleep state, that is, not sending the network management message, and the ECU will jump to the repeated message state of the network mode after receiving the valid network management message in the ready bus sleep mode, that is, start sending the network management message, so that the test equipment can simulate sending a frame of valid network management message to the ECU after the network management message is stopped and the ECU enters the ready sleep state after being powered off, and the communication behavior of the ECU is monitored, when the ECU receives the valid network management message and does not send the network management message itself, it is determined that the ECU is still in the ready sleep state, when the ECU receives the valid network management message and starts to send the network management message itself, it is determined that the ECU enters the ready bus sleep mode, so that the time point of the ECU entering the ready bus sleep mode can be accurately obtained, and the time from the repeated message state to the ready bus sleep mode, that is, the timing parameter time, can be calculated.

[0076] In addition, it should be noted that the target network management message stop sending time can represent the time point when the ECU enters the ready sleep state, and the ready sleep state is the Ready Sleep State state, that is, the RSS state, at this time the ECU stops sending the network management message, but still sends the application message, and the time is more accurate and effective to avoid the error caused by potential system problems, and the target network management message re-sending time can represent the time point when the ECU jumps from the ready sleep state to the ready bus sleep mode, and the ready bus sleep mode is the Prepare Bus Sleep Mode mode, that is, the PBSM mode, at this time the test equipment simulation device starts to send the network management message, rather than the ECU starting to send the network management message, which more effectively avoids the error of ECU state jump and delay of starting to send the network management message.

[0077] For the convenience of understanding, the target network management message stop sending time and the target network management message re-sending time are taken as examples for description, wherein the information collection device is an information collection module, the storage device is a memory, and the processing device is a processing module.

[0078] The information collection module acquires message type information sending states, such as normal sending of application App messages and normal sending of network management NM messages, abnormal sending of application App messages and normal sending of network management NM messages, normal sending of application App messages and abnormal sending of network management NM messages, and abnormal sending of application App messages and abnormal sending of network management NM messages, acquires stop event states, such as stopping a local wake-up event or stopping a remote wake-up event, acquires a target stay time Δt, initially sets the target stay time Δt as 0 ms, determines a target network management message stop sending time and a monitored network management message sending state based on the target stay time, the message type information sending state, and the stop event state, that is, when the message type information sending state is successful sending of application messages and network management messages and the stop event state is stopping a local wake-up event or stopping a remote wake-up event, records a time T1 of a last frame of network management NM messages sent by the ECU using a test device to obtain the target network management message stop sending time.

[0079] At this time, the ECU enters a preparation sleep state, stops sending network management NM messages, and continues to send application App messages, simulates sending of a monitored network management message based on the target stay time using a test device to obtain a monitored network management message sending state, that is, staying for a time Δt after stopping sending network management NM messages, simulates sending of a frame of valid network management NM messages using a test device, monitors ECU communication behavior, when the monitored network management message sending state is unsuccessful sending, increases the target stay time by a preset time length and then executes the automated test again, that is, if the ECU does not send network management NM messages, increases the target stay time Δt by 50 ms and then executes the automated test again, until the ECU successfully sends network management NM messages, at this time, when the monitored network management message sending state is successful sending, records a current sending time to obtain a target network management message resending time, that is, records a time T2 of simulated sending of network management NM messages by the test device to obtain the target network management message resending time.

[0080] Stores the target network management message stop sending time and the target network management message resending time in a memory, and performs subsequent processing based on the target network management message stop sending time and the target network management message resending time.

[0081] Step S30, determines a test time value based on the target network management message resending time and the target network management message stop sending time, and controls system hibernation based on the test time value.

[0082] It should be noted that the test time value reflects the feature of the time interval from jumping to the preparation bus sleep mode to the preparation sleep state.

[0083] It can be understood that the test time value not only determines the time when the ECU enters sleep after power-off, but also relates to whether the vehicle ECU satisfies the sleep mechanism of "sleeping together". Usually, the nominal value of the test time value is defined as 2000 ms, and the tolerance is ±10%. Therefore, the test time value between 1800 ms and 2200 ms meets the design requirements, and the accuracy of the test time value is directly related to the efficiency and stability of the vehicle network management.

[0084] In addition, it should be noted that by accurately determining the test time value, the problem of false positives caused by test errors can be reduced, the performance of the vehicle network management can be optimized, the effectiveness of the vehicle sleep mechanism can be ensured, and thus the reliability and performance of the vehicle are improved.

[0085] For the convenience of understanding, the determination of the test time value is taken as an example for description, wherein the information acquisition device is an information collection module, the storage device is a memory, and the execution device is an execution module.

[0086] The information collection module acquires a target test time interval, such as 1800 ms to 2200 ms, acquires a target network management message re-sending time T1, acquires a target network management message stop sending time T2, and obtains a test time value T NM_TIMEOUT by subtracting the target network management message stop sending time from the target network management message re-sending time, i.e., T NM_TIMEOUT = T2-T1. Based on the test time value and the target test time interval, the system sleep performance is verified to determine a verification state, and based on the verification state, the system sleep is controlled. At this time, the calculated test time value and the target test time interval are matched, and it is expected that the T NM_TIMEOUT test value is between 1800 ms and 2200 ms. That is, when the test time value is not in the target test time interval, the verification state is failed, and the system sleep performance needs to be improved. When the test time value is in the target test time interval, the verification state is passed, and the system sleep performance does not need to be improved.

[0087] In a feasible implementation, the step S30 can include steps B11-B13.

[0088] Step B11, acquiring a target test time interval;

[0089] It should be noted that the target test time interval is a preset time range when testing the network management timing parameter.

[0090] It can be understood that the target test time interval can represent the tolerance limit of network management performance. By presetting a specific test time interval, the network management performance of the ECU can be more accurately evaluated, and the problem false alarm caused by test error can be reduced. In addition, the ECU can correctly respond to network state changes within a specified time, thereby maintaining the stability and efficiency of the vehicle network.

[0091] Step B12, the test time value is obtained by subtracting the target network management message stop sending time from the target network management message re-sending time;

[0092] It can be understood that after the test time value is timed out, the ECU enters a preparation bus sleep mode, and when the ECU receives a valid network management message in the preparation bus sleep mode, it jumps to a repeat message state of the network mode, which is a Repeat Message State state, i.e. RMS state.

[0093] Step B13, based on the test time value and the target test time interval, verify the system sleep performance to determine the verification state, and control the system sleep based on the verification state.

[0094] It can be understood that the target test time interval clearly limits the test time value, thereby providing a clear evaluation standard for the network management performance of the ECU, reducing the problem false alarm caused by test error, ensuring that the ECU can correctly respond to network state changes within a specified time, improving the stability and efficiency of the vehicle network, and enabling the ECU to enter a sleep state at an appropriate time, reducing unnecessary energy consumption and prolonging the battery life.

[0095] In a feasible implementation, step B13 can include steps C11-C12:

[0096] Step C11, when the test time value is not in the target test time interval, the verification state is failed, and the system sleep performance needs to be improved;

[0097] It can be understood that when the test time value exceeds the target test time interval, it means that the time for the ECU to jump from the preparation sleep state to the preparation bus sleep mode does not meet the design timeout timing parameter. In this case, the verification state is failed, which means that the system sleep performance needs to be improved.

[0098] Step C12, when the test time value is in the target test time interval, the verification state is passed, and the system sleep performance does not need to be improved.

[0099] It can be understood that when the test time value does not exceed the target test time interval, that is, the time for the ECU to jump from the preparation sleep state to the preparation bus sleep mode conforms to the designed timeout timing parameter, in this case, the verification state is successful, which means that the system sleep performance does not need to be improved.

[0100] The network management timing parameter optimization control method provided in the embodiment acquires a message type information sending state and a stop event state; determines a target network management message stop sending time and a target network management message re-sending time based on the message type information sending state and the stop event state; determines a test time value based on the target network management message re-sending time and the target network management message stop sending time, and controls system sleep based on the test time value. The technical problem of test error caused by a large ECU application message period is solved. Compared with the prior art, the network management timing parameter optimization control method provided in the embodiment accurately acquires the message type information sending state and the stop event state, thereby determining the network management message stop sending time and the network management message re-sending time, and calculating the test time value to control system sleep, which significantly improves the accuracy and efficiency of vehicle network management, ensures the effectiveness of vehicle sleep mechanism, reduces energy consumption, prolongs battery life, and optimizes driving and riding experience.

[0101] Based on the first embodiment of the application, in the second embodiment of the application, the same or similar contents as the above-mentioned first embodiment can be referred to the above description, and will not be described in detail.

[0102] In the embodiment, the network management timing parameter optimization control method provided in the embodiment is described in detail with reference to Figure 2 , Figure 2 The flowchart provided for the second embodiment of the network management timing parameter optimization control method of the application is shown in FIG. 2, and step S20 specifically includes steps S21-S23.

[0103] Step S21, acquiring a target stay time;

[0104] It should be noted that the target stay time reflects the time length of the system stay from stopping sending network management messages to entering the preparation sleep state to starting to send the next frame of network management messages.

[0105] It can be understood that the target stay time can represent how long the ECU needs to stay to start monitoring whether the ECU enters the preparation bus sleep mode after receiving a valid network management message, so as to more accurately capture the state conversion of the ECU, improve the accuracy of the timing parameter test, avoid unnecessary test delay, and improve the test efficiency.

[0106] For the convenience of understanding, the acquisition of the target stay time is taken as an example for description, in which the information acquisition device is an information collection module, the storage device is a memory, and the processing device is a processing module.

[0107] The information collection module acquires the target residence time Δt, initially sets the target residence time Δt as 0 ms, stays for Δt time after the network management NM message stops sending, simulates sending an effective network management NM message by using a test device, monitors the ECU communication behavior, when the monitoring network management message sending state is not successfully sent, increases the target residence time by a preset time length and then executes the automatic test again, that is, if the ECU does not send the network management NM message, increases the target residence time Δt by 50 ms and then executes the automatic test again, until the ECU successfully sends the network management NM message, at this time, the continuously cyclically accumulated target residence time can be obtained, the target residence time is stored in the storage, and subsequent processing is performed based on the target residence time.

[0108] Step S22, determining the target network management message stop sending time and monitoring network management message sending state based on the target residence time, the message type information sending state and the stop event state.

[0109] It should be noted that the monitoring network management message sending state reflects the behavior characteristics in different network management states.

[0110] For the convenience of understanding, the determination of the target network management message stop sending time and the monitoring network management message sending state is taken as an example for illustration, wherein the information collection device is an information collection module, the storage device is a storage, and the processing device is a processing module.

[0111] The information collection module acquires message type information sending states, such as normal sending of application App messages and normal sending of network management NM messages, abnormal sending of application App messages and normal sending of network management NM messages, normal sending of application App messages and abnormal sending of network management NM messages, and abnormal sending of application App messages and abnormal sending of network management NM messages, acquires stop event states, such as stopping a local wake-up event or stopping a remote wake-up event, acquires a target stay time Δt, sets the target stay time Δt initially as 0 ms, determines a target network management message stop sending time and a monitored network management message sending state based on the target stay time, the message type information sending state, and the stop event state, that is, when the message type information sending state is successful sending of application messages and network management messages and the stop event state is stopping a local wake-up event or stopping a remote wake-up event, records a time T1 of a last frame of network management NM messages sent by the ECU by using a test device, obtains the target network management message stop sending time, at this time, the ECU enters a preparation sleep state, stops sending network management NM messages, and continues to send application App messages, simulates sending of a monitored network management message by using the test device based on the target stay time, and obtains the monitored network management message sending state.

[0112] In a feasible implementation, step S22 can include steps D11-D12:

[0113] Step D11, when the message type information sending state is successful sending of application messages and network management messages and the stop event state is stopping a local wake-up event or stopping a remote wake-up event, records a target network management message stop sending time by using a test device;

[0114] It can be understood that the monitored network management message can represent that the ECU sends or stops sending network management messages at a proper time, through monitoring of a network management message sending state of the ECU, a time point at which the ECU enters different network management states can be determined more accurately, thereby improving accuracy of timing parameter testing.

[0115] Step D12, simulates sending of a monitored network management message by using a test device based on the target stay time, and obtains a monitored network management message sending state.

[0116] It can be understood that monitoring of a sending state of a network management message can ensure correct behavior of the ECU in a network mode, enhances reliability and effectiveness of whole vehicle network management, and improves stability and safety of the system by discovering and solving problems in network management in a timely manner.

[0117] Step S23, determining the target network management message re-sending time based on the target dwell time and the monitoring network management message sending state.

[0118] It can be understood that, based on the target dwell time and the monitoring network management message sending state, the time point when the ECU enters different network management states can be determined more accurately, thereby improving the accuracy of the timing parameter test.

[0119] For the convenience of understanding, the determination of the target network management message re-sending time is taken as an example for illustration, wherein the information acquisition device is an information collection module, the storage device is a memory, and the processing device is a processing module.

[0120] The ECU enters the preparation sleep state, stops sending the network management NM message and continues to send the application App message, based on the target dwell time, a monitoring network management message is simulated to be sent by the test equipment, the monitoring network management message sending state is obtained, that is, after the network management NM message stops sending for a dwell time Δt, one frame of valid network management NM message is simulated to be sent by the test equipment, the communication behavior of the ECU is monitored, when the monitoring network management message sending state is not successfully sent, the target dwell time is increased by a preset time length and the automated test is executed again, that is, when the ECU does not send the network management NM message, the target dwell time Δt is increased by 50 ms and the automated test is executed again, until the ECU successfully sends the network management NM message, at this time, when the monitoring network management message sending state is successfully sent, the current sending time is recorded to obtain the target network management message re-sending time, that is, the time T2 when the test equipment simulates to send the network management NM message is recorded to obtain the target network management message re-sending time, and subsequent processing is performed based on the target network management message re-sending time.

[0121] In a feasible implementation, step S23 can include steps E11-E12:

[0122] Step E11, when the monitoring network management message sending state is not successfully sent, the target dwell time is increased by a preset time length and the automated test is executed again;

[0123] It can be understood that the preset time length refers to the time when the target dwell time is increased in the automated test process when the monitoring network management message sending state is not successfully sent, so as to ensure that when the ECU does not respond as expected, the test will not fail immediately, but a certain time buffer is given, so that the possible delayed response of the ECU is considered, the preset time length provides a buffer for the delayed response of the ECU, and reduces the misjudgment caused by temporary network fluctuations or ECU processing delay.

[0124] Additionally, it should be noted that automated testing reduces human intervention, increases the speed and frequency of test execution, makes the testing process more efficient, executes a large number of test cases in a short period of time, increases test coverage, reduces repetitive work, and lowers labor and time costs.

[0125] Step E12: When the monitoring network management message transmission status is "successfully transmitted", record the current transmission time to obtain the retransmission time of the target network management message.

[0126] It is understandable that when the monitoring network management message sending status is successful, recording the current sending time can improve the accuracy of timing parameter testing, reduce errors caused by ECU status transitions and delays in starting to send NM messages, shorten testing time, and improve testing efficiency.

[0127] This embodiment proposes a network management timing parameter optimization control method, which obtains a target dwell time; determines the target network management message stop sending time and monitors the network management message sending status based on the target dwell time, the message type information sending status, and the stop event status; and determines the target network management message retransmission time based on the target dwell time and the monitored network management message sending status. This solves the technical problem of how to more accurately obtain network management timing parameters. Compared with existing technologies, this application, by obtaining the target dwell time and combining it with the message type information sending status and the stop event status, accurately determines the stop sending time and retransmission time of network management messages, significantly improving network management performance and testing accuracy, ensuring the effectiveness of the vehicle's sleep mechanism, reducing energy consumption, extending battery life, optimizing the driving and riding experience, and enhancing the flexibility and response speed of vehicle network management.

[0128] For example, to help understand the implementation flow of the network management timing parameter optimization control method obtained in this embodiment combined with the above embodiment one, please refer to... Figure 3 , Figure 3 A simplified flowchart of a network management timing parameter optimization control method is provided, specifically:

[0129] Referring to Example 1, the message type information sending status and stop event status are obtained; based on the message type information sending status and the stop event status, the target network management message stop sending time and the target network management message retransmission time are determined; based on the target network management message retransmission time and the target network management message stop sending time, a test time value is determined, and the system is controlled to hibernate based on the test time value. Referring to Example 2, the target dwell time is obtained; based on the target dwell time, the message type information sending status, and the stop event status, the target network management message stop sending time and the monitoring network management message sending status are determined; based on the target dwell time and the monitoring network management message sending status, the target network management message retransmission time is determined.

[0130] like Figure 4 As shown, Figure 4 This is a schematic diagram of the network management timing parameter optimization control method of this application. If the actual T_NM_TIMEOUT of a certain ECU software is set between 1800ms and 2000ms, and its App message period is 1000ms. The existing testing method records the time when the last NM frame sent by the ECU enters RSS state as T1, and the time when it sends the next App message frame as T2. If T2-T1 is between 1000ms and 1800ms, then the App message is the last message sent by the ECU, and T2 is determined to be the time when it enters PBSM mode. Obviously, the test value T_NM_TIMEOUT between 1000ms and 1800ms does not match the actual value of 1800ms to 2000ms in the ECU software, causing a large test error. This is because the App message period of the ECU is relatively large, resulting in no communication between the time T2 when the last App message frame is sent and the actual time T2 when PBSM mode is entered. That is, the ECU has not yet entered PBSM mode at time T2. Therefore, the existing testing method will mistakenly assume that the ECU has entered PBSM mode at time T2, when the actual time T2 is the expected value.

[0131] By comparing the testing methods of this solution with existing technologies, it can be seen that the testing accuracy has been significantly improved. The following is a demonstration of the optimization effect.

[0132] The prior art actually tests that the ECU sends the last frame of the App message as the entering PBSM mode time point, and the maximum deviation rate = App message period / nominal value; taking the App message period as 1000ms for example, the maximum test deviation is even close to 50%, so the larger the App message period is, the larger the deviation is; in actual testing, even if the actual T_NM_TIMEOUT timing parameters of each ECU meet the requirements, the test Fail may occur, and the application actually tests that the ECU can send its own NM message after receiving the NM message as the entering PBSM mode time point, and the maximum deviation rate = Δt / nominal value; taking Δt increasing by 50ms for example, the maximum test deviation is 2.5%, which is completely acceptable compared with the tolerance of ±10%; and the test end Δt can be set arbitrarily according to requirements, and the smaller the Δt is, the more accurate the test value is.

[0133] It should be noted that the above examples are only used for understanding the application and do not constitute a limitation on the network management timing parameter optimization control method of the application, and more forms of simple transformation based on this technical concept are within the protection scope of the application.

[0134] The application also provides a network management timing parameter optimization control device, which is described in detail in the Figure 5 The network management timing parameter optimization control device comprises:

[0135] An acquisition module 10 is configured to acquire a message type information sending state and a stop event state.

[0136] A processing module 20 is configured to determine a target network management message stop sending time and a target network management message re-sending time based on the message type information sending state and the stop event state.

[0137] An execution module 30 is configured to determine a test time value based on the target network management message re-sending time and the target network management message stop sending time, and control the system to sleep based on the test time value.

[0138] The acquisition module 10 is further configured to acquire an electronic control unit power-on state, a communication state and a wake-up event.

[0139] Message type information is sent based on the electronic control unit power-on state and the communication state, and a message type information sending state is determined, wherein the message type information comprises an application message and a network management message.

[0140] The wake-up event is stopped to determine a stop event state, and the wake-up event comprises a local wake-up event and a remote wake-up event.

[0141] The processing module 20 is further configured to acquire a target dwell time.

[0142] determine a target network management message stop sending time and a monitoring network management message sending state based on the target residence time, the message type information sending state and the stop event state;

[0143] determine a target network management message resending time based on the target residence time and the monitoring network management message sending state.

[0144] The processing module 20 is further configured to, when the message type information sending state is successful sending of application messages and network management messages and the stop event state is a stop local wake-up event or a stop remote wake-up event, record a target network management message stop sending time by using a test device;

[0145] determine a monitoring network management message sending state by simulating sending of the monitoring network management message based on the target residence time by using the test device.

[0146] The processing module 20 is further configured to, when the monitoring network management message sending state is unsuccessful sending, increase the target residence time by a preset time length and then perform the automated test again;

[0147] when the monitoring network management message sending state is successful sending, record a current sending time to obtain a target network management message resending time.

[0148] The execution module 30 is further configured to obtain a target test time interval;

[0149] obtain a test time value by subtracting the target network management message stop sending time from the target network management message resending time;

[0150] verify a system sleep performance based on the test time value and the target test time interval to determine a verification state, and control system sleep based on the verification state.

[0151] The execution module 30 is further configured to, when the test time value is not in the target test time interval, determine that the verification state is failed and that the system sleep performance needs to be improved;

[0152] when the test time value is in the target test time interval, determine that the verification state is passed and that the system sleep performance does not need to be improved.

[0153] The network management timing parameter optimization control device provided by the present application adopts the network management timing parameter optimization control method in the above embodiment, and can solve the technical problem of how to more accurately obtain network management timing parameters. Compared with the prior art, the network management timing parameter optimization control device provided by the present application has the same beneficial effects as the network management timing parameter optimization control method provided by the above embodiment, and other technical features in the network management timing parameter optimization control device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0154] The present application provides a network management timing parameter optimization control device, which comprises at least one processor and a memory connected in communication with the at least one processor, wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the network management timing parameter optimization control method in the above embodiment one.

[0155] Reference will be made to the following description of the embodiments of the present application, taken in conjunction with the accompanying drawings, in which Figure 6 which shows a structural diagram of a network management timing parameter optimization control device suitable for implementing the embodiments of the present application. The network management timing parameter optimization control device in the embodiments of the present application can include, but is not limited to, mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), and the like, and fixed terminals such as digital TVs, desktop computers, and the like. Figure 6 The network management timing parameter optimization control device shown is only an example, and should not impose any limitation on the functions and use range of the embodiments of the present application.

[0156] As Figure 6As shown, the network management timing parameter optimization control device can include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.) that can perform various appropriate actions and processes according to programs stored in a read-only memory (ROM) 1002 or programs loaded from a storage device 1003 into a random access memory (RAM) 1004. Various programs and data required for the network management timing parameter optimization control device to operate are also stored in the RAM 1004. The processing device 1001, the ROM 1002, and the RAM 1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; the storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the network management timing parameter optimization control device to communicate wirelessly or wired with other devices to exchange data. Although the network management timing parameter optimization control device with various systems is shown in the figure, it should be understood that all the shown systems are not required to be implemented or possessed. More or fewer systems can be alternatively implemented or possessed.

[0157] In particular, the processes described above with reference to the flowcharts can be implemented as a computer software program according to embodiments of the present disclosure. For example, embodiments of the present disclosure include a computer program product comprising a computer program carried on a computer readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network through the communication device, or installed from the storage device 1003, or installed from the ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the methods of embodiments of the present disclosure are performed.

[0158] The network management timing parameter optimization control device provided by the present disclosure adopts the network management timing parameter optimization control method in the above-mentioned embodiments, and can solve the technical problem of how to more accurately obtain network management timing parameters. Compared with the prior art, the network management timing parameter optimization control device provided by the present disclosure has the same beneficial effects as the network management timing parameter optimization control method provided by the above-mentioned embodiments, and other technical features in the network management timing parameter optimization control device are the same as the features disclosed in the previous embodiment method, which will not be repeated here.

[0159] It should be understood that various parts of the present application can be realized in hardware, software, firmware, or a combination thereof. In the above description of embodiments, specific functional, structural, material or characteristic features are combined in a manner known per se; however, each feature can also be implemented individually or in a different combination.

[0160] The above description is merely illustrative of the application and is not intended to limit the scope of the application. Any variations and modifications that can be made by those skilled in the art without departing from the spirit of the application are intended to be included in the scope of the application. The scope of the application is defined by the appended claims.

[0161] The present application provides a computer readable storage medium having stored thereon computer readable program instructions (i.e., a computer program) for performing the network management timing parameter optimization control method in the above-described embodiments.

[0162] The computer readable storage medium provided by the present application may, for example, be a U disk, but is not limited to an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, system, or device, or any combination thereof. More specific examples of the computer readable storage medium can include, but are not limited to, an electrical connection having one or more conductive wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present embodiment, the computer readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer readable storage medium can be transmitted in any suitable medium, including but not limited to electrical wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0163] The above computer readable storage medium can be included in the network management timing parameter optimization control device; or can exist separately and not be assembled into the network management timing parameter optimization control device.

[0164] The computer readable storage medium described above carries one or more programs, when the one or more programs are executed by the network management timing parameter optimization control device, the network management timing parameter optimization control device is caused to: acquire a message type information sending state and a stop event state; determine a target network management message stop sending time and a target network management message re-sending time based on the message type information sending state and the stop event state; determine a test time value based on the target network management message re-sending time and the target network management message stop sending time, and control the system to sleep based on the test time value.

[0165] Computer program code for carrying out operations of the present application can be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computer (for example, through the Internet using an Internet Service Provider).

[0166] The flow diagrams and the block diagrams in the drawings are illustrations of architectures, functionalities, and operations of possible implementations of systems, methods, and computer program products according to various embodiments of present application. In this regard, each block in the flow diagrams or block diagrams can represent a module, a procedure, or a part of code, which comprises one or more executable instructions for implementing the specific logical functions specified for the block. It should also be noted that in some alternative implementations, the functions noted in the blocks can occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently or in the reverse order, depending on the functionality involved. It is also noted that each block in the block diagrams and / or flow diagrams and combinations of blocks in the block diagrams and / or flow diagrams can be implemented by special-purpose hardware-based systems that perform the specified functions or operations, or combinations of special-purpose hardware and computer instructions.

[0167] The modules described in the embodiments of the present application can be implemented in the form of software or in the form of hardware. In some cases, the name of the module does not constitute a limitation on the module itself.

[0168] The readable storage medium provided by the present application is a computer readable storage medium, which stores computer readable program instructions (i.e., computer programs) for executing the network management timing parameter optimization control method described above, and can solve the technical problem of how to more accurately obtain network management timing parameters. Compared with the prior art, the computer readable storage medium provided by the present application has the same beneficial effects as the network management timing parameter optimization control method provided by the above-mentioned embodiments, and will not be described here.

[0169] The above only describes some embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A method for optimizing and controlling timing parameters in network management, characterized in that, The method includes: Get message type information, sending status, and stop event status; The time when the target network management message stops sending and the time when it is resent are determined based on the message type information sending status and the stop event status. A test time value is determined based on the retransmission time of the target network management message and the stop transmission time of the target network management message, and the system is put into sleep mode based on the test time value; The steps of determining the target network management message stop sending time and the target network management message retransmission time based on the message type information sending status and the stop event status include: Obtain the target dwell time; The target network management message stop sending time and the monitoring network management message sending status are determined based on the target dwell time, the message type information sending status, and the stop event status. The target network management message stop sending time is the time when the ECU enters the sleep preparation state. The target network management message retransmission time is determined based on the target dwell time and the monitoring network management message transmission status. The target network management message retransmission time is the time point at which the ECU jumps from the ready-to-sleep state to the ready-to-bus-sleep mode. The steps for obtaining message type information, sending status, and stop event status include: Acquire the power-on status, communication status, and wake-up events of the electronic control unit; Based on the power-on status and communication status of the electronic control unit, the message type information is sent to determine the message type information sending status. The message type information includes application messages and network management messages. The stop event status is determined based on the wake-up event, which includes local wake-up events and remote wake-up events; The steps of determining the target network management message stop sending time and monitoring the network management message sending status based on the target dwell time, the message type information sending status, and the stop event status include: When the message type information sending status is successful sending of application messages and network management messages and the stop event status is stop local wake-up event or stop remote wake-up event, the target network management message stop sending time is recorded using a test device. Based on the target dwell time, the test equipment is used to simulate sending monitoring network management messages to obtain the sending status of monitoring network management messages.

2. The method as described in claim 1, characterized in that, The step of determining the target network management message retransmission time based on the target dwell time and the monitoring network management message transmission status further includes: When the monitoring network management message transmission status is "failed to be sent", the target dwell time is increased by a preset duration and the automated test is executed again; When the monitoring network management message transmission status is "successfully transmitted", the current transmission time is recorded to obtain the retransmission time of the target network management message.

3. The method as described in claim 1, characterized in that, The step of determining a test time value based on the retransmission time of the target network management message and the stop transmission time of the target network management message, and controlling the system to hibernate based on the test time value, includes: Obtain the target test time range; The test time value is obtained by subtracting the time when the target network management message stops being sent from the time when the target network management message is resent. Based on the test time value and the target test time interval, the system sleep performance is verified and the verification state is determined. Based on the verification state, the system is put into sleep mode.

4. The method as described in claim 3, characterized in that, The step of determining the verification status based on the test time value and the target test time interval to verify the system's sleep performance includes: When the test time value is not within the target test time range, the verification status is failed, and the system hibernation performance needs to be improved. When the test time value is within the target test time interval, the verification status is passed, and the system hibernation performance does not require improvement.

5. A network management timing parameter optimization control device, characterized in that, The apparatus is used to implement the method as described in claim 1, the apparatus comprising: The acquisition module is used to acquire message type information, sending status, and stop event status. The processing module is used to determine the time when the target network management message stops being sent and the time when the target network management message is sent again, based on the message type information sending status and the stop event status. The execution module is used to determine a test time value based on the retransmission time of the target network management message and the stop transmission time of the target network management message, and to control the system to hibernate based on the test time value; The processing module is also used to obtain the target dwell time; The target network management message stop sending time and the monitoring network management message sending status are determined based on the target dwell time, the message type information sending status, and the stop event status. The target network management message stop sending time is the time when the ECU enters the sleep preparation state. The target network management message retransmission time is determined based on the target dwell time and the monitoring network management message transmission status. The target network management message retransmission time is the time point at which the ECU jumps from the ready-to-sleep state to the ready-to-bus-sleep mode. The acquisition module is also used to acquire the power-on status, communication status, and wake-up event of the electronic control unit; Based on the power-on status and communication status of the electronic control unit, the message type information is sent to determine the message type information sending status. The message type information includes application messages and network management messages. The stop event status is determined based on the wake-up event, which includes local wake-up events and remote wake-up events; The processing module is further configured to use a test device to record the time when the message type information sending status is successful sending of application messages and network management messages and the stop event status is a stop local wake-up event or a stop remote wake-up event. Based on the target dwell time, the test equipment is used to simulate sending monitoring network management messages to obtain the sending status of monitoring network management messages.

6. A network management timing parameter optimization control device, characterized in that, The device is used to implement the method as described in claim 1, the device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the network management timing parameter optimization control method as described in any one of claims 1 to 4.

7. A storage medium, characterized in that, The storage medium is used to implement the method as described in claim 1, wherein the storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium, wherein when the computer program is executed by a processor, it implements the steps of the network management timing parameter optimization control method as described in any one of claims 1 to 4.

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