Display control method and device of vehicle instrument, electronic equipment and storage medium

Abstract

The application provides a display control method and device of a vehicle instrument, electronic equipment and a storage medium. The method comprises the following steps: controlling a vehicle controller to send a display signal; determining whether the display signal is detected in a target power supply state according to a signal sending scenario in which the vehicle is located; the signal sending scenario comprises one of the following: an ignition state periodic sending scenario, an extinguishing state periodic sending scenario and an ignition and extinguishing state periodic sending scenario; the target power supply state is associated with the signal sending scenario; if the display signal is not detected, determining whether a continuous time length in which the display signal is not detected is greater than a set timeout time length; if the continuous time length is greater than the set timeout time length, outputting display abnormity prompt information of the vehicle instrument. The application can dynamically adjust the detection logic of the display signal according to the signal sending scenario in which the vehicle is located, thereby avoiding the problems of false alarm and information display abnormity of the vehicle instrument after the power supply state is switched.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more specifically, to a display control method, device, electronic device, and storage medium for a vehicle instrument panel. Background Technology

[0002] With the rapid development of automotive electronics technology, the electronic control systems integrated into vehicles are becoming increasingly complex. Among them, the accurate transmission of display signals and the normal display of instruments are important aspects of ensuring safe driving and a good user experience. During actual vehicle operation, the vehicle's power state switches between ignition (e.g., ON mode) and shutdown (e.g., OFF mode). Different vehicle controllers exhibit significant differences in their signal transmission logic under these power states. Due to variations in processing speed and signal transmission strategies among the vehicle's controllers, the instrument cluster often misinterprets the signal transmission status during power state transitions. These false alarms and abnormal instrument display issues caused by power state switching not only affect the user's accurate assessment of the vehicle's status and reduce user experience, but may also lead to misjudgments of vehicle performance and even unnecessary repairs. Summary of the Invention In view of this, the purpose of this application is to provide a display control method, device, electronic device and storage medium for a vehicle instrument panel, which can dynamically adjust the detection logic of the display signal according to the signal transmission scenario of the vehicle, thereby avoiding false alarms and abnormal information display problems of the vehicle instrument panel after power state switching.

[0003] In a first aspect, embodiments of this application provide a display control method for a vehicle instrument panel, the method comprising: Control the vehicle controller to send external display signals; Based on the signal transmission scenario in which the vehicle is located, it is determined whether the display signal is detected under the target power state; wherein, the signal transmission scenario includes one of the following: ignition state periodic transmission scenario, ignition-off state periodic transmission scenario, and ignition-off state periodic transmission scenario, and the target power state is associated with the signal transmission scenario; If the display signal is not detected, determine whether the continuous duration of the absence of the display signal is greater than the set timeout duration; If the continuous duration exceeds the set timeout duration, an abnormal display message will be output to the vehicle's instrument panel.

[0004] In an optional embodiment, if the signal transmission scenario is an ignition state periodic transmission scenario, determining whether the display signal is detected under the target power state based on the signal transmission scenario in which the vehicle is located includes: Based on the vehicle's ignition state cycle, determine whether the display signal is detected during the ignition state and not during the ignition-off state; If the signal transmission scenario is a periodic transmission scenario in a powered-off state, the step of determining whether the display signal is detected in the target power state based on the signal transmission scenario in which the vehicle is located includes: Based on the vehicle's off state periodic transmission scenario, determine whether the display signal is detected in the off state and not in the ignition state; If the signal transmission scenario is a periodic transmission scenario under ignition-off state, the step of determining whether the display signal is detected under the target power state based on the signal transmission scenario of the vehicle includes: Based on the vehicle's ignition / off state, the system periodically sends scenarios to determine whether the display signal is detected in either the ignition or off state.

[0005] In one optional embodiment, the ignition state periodic transmission scenario refers to a scenario where the display signal is periodically transmitted in the ignition state and stops or changes its periodicity in the ignition-off state; the ignition-off state periodic transmission scenario refers to a scenario where the display signal is periodically transmitted in the ignition-off state and stops or changes its periodicity in the ignition state; and the ignition-off state periodic transmission scenario refers to a scenario where the display signal is periodically transmitted in both the ignition and ignition-off states.

[0006] In one optional embodiment, the set timeout duration refers to the transmission cycle of the display signal.

[0007] In one optional embodiment, the vehicle controller externally sends display signals, including: Control the vehicle controller to send external display signals and set the instrument node loss flag to 0; If the continuous duration exceeds the set timeout duration, an abnormal display prompt message is output for the vehicle instrument panel, including: If the continuous duration exceeds the set timeout duration, the instrument node loss flag position 1 will be set to output a display abnormality prompt message for the vehicle instrument.

[0008] In an optional embodiment, the method further includes: After the power state switches from off state to ignition state or from ignition state to off state, the continuous duration and the instrument node loss flag are cleared to zero.

[0009] In an optional embodiment, the method further includes: During the process of switching the power status from off to ignition or from ignition to off, the startup duration of the vehicle's instrument panel is obtained. During the startup duration, the display signal is not detected; wherein the startup duration is longer than the set timeout duration or the continuous duration is longer than the sum of the set timeout duration and the startup duration.

[0010] Secondly, embodiments of this application also provide a display control device for a vehicle instrument panel, the device comprising: The signal control module is used to control the external display signals sent by the vehicle controller; The signal detection module is used to determine whether the display signal is detected in the target power state based on the signal transmission scenario in which the vehicle is located; wherein, the signal transmission scenario includes one of the following: ignition state periodic transmission scenario, ignition-off state periodic transmission scenario, and ignition-off state periodic transmission scenario, and the target power state is associated with the signal transmission scenario; The duration detection module is used to determine whether the continuous duration of the absence of the display signal is greater than a set timeout duration if the display signal is not detected. The error message module is used to output an error message on the vehicle instrument panel if the continuous duration exceeds the set timeout duration.

[0011] Thirdly, embodiments of this application also provide an electronic device, including: a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory via the bus. When the machine-readable instructions are executed by the processor, the steps of the display control method for a vehicle instrument panel as described above are performed.

[0012] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a computer program, which, when executed by a processor, performs the steps of the vehicle instrument display control method described above.

[0013] The vehicle instrument display control method provided in this application has at least the following technical effects: By specifically judging the detection status of the displayed signal under the target power state according to different signal transmission scenarios, and outputting abnormal prompt information by comparing the continuous duration with the set timeout duration, it can accurately identify signal abnormalities caused by power state switching, avoiding false alarms and abnormal information display problems. This allows users to accurately know the vehicle status, enriches the vehicle instrument display control methods, enhances the richness of vehicle functions, and solves the coordination problem between vehicle controller signal transmission and instrument display in the computer field, ensuring the stable operation of the system.

[0014] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A flowchart illustrating a display control method for a vehicle instrument panel provided in an embodiment of this application; Figure 2 A flowchart illustrating another vehicle instrument display control method provided in an embodiment of this application; Figure 3 A schematic diagram of the structure of a display control device for a vehicle instrument panel provided in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. Based on the embodiments of this application, every other embodiment obtained by those skilled in the art without inventive effort falls within the scope of protection of this application.

[0018] First, the applicable application scenarios of this application are introduced. This application can be applied to the field of vehicle technology. Research has found that during the actual operation of a vehicle, the vehicle's power state switches between ignition (e.g., ON mode) and shutdown (e.g., OFF mode). Different vehicle controllers exhibit significant differences in the signal transmission logic under different power states. Due to the differences in processing speed and signal transmission strategies among the various vehicle controllers, the instrument panel often misjudges the signal transmission state during power state switching. These false alarms and abnormal instrument display problems caused by power state switching not only affect the user's accurate judgment of the vehicle's status and reduce the user experience, but may also lead to misjudgments of vehicle performance and even unnecessary repairs.

[0019] Based on this, this application provides a display control method for a vehicle instrument panel, which can dynamically adjust the detection logic of the display signal according to the signal transmission scenario in which the vehicle is located, thereby avoiding false alarms and abnormal information display problems after the power state of the vehicle instrument panel changes.

[0020] Please see Figure 1 , Figure 1 This is a flowchart illustrating a display control method for a vehicle instrument panel provided in an embodiment of this application. Figure 1 As shown in the embodiments of this application, the method includes: S101, Control the vehicle controller to send external display signals; S102. Based on the signal transmission scenario in which the vehicle is located, determine whether a display signal is detected under the target power state; wherein, the signal transmission scenario includes one of the following: ignition state cycle transmission scenario, ignition-off state cycle transmission scenario, and ignition-off state cycle transmission scenario, and the target power state is associated with the signal transmission scenario; S103. If no display signal is detected, determine whether the continuous duration of no display signal detection is greater than the set timeout duration. S104. If the continuous duration exceeds the set timeout duration, output an abnormal display prompt message for the vehicle instrument panel.

[0021] This application embodiment, by specifically judging the detection status of the displayed signal under the target power state according to different signal transmission scenarios, and outputting abnormal prompt information by comparing the continuous duration with the set timeout duration, can accurately identify signal abnormalities caused by power state switching, avoiding false alarms and abnormal information display problems, allowing users to accurately know the vehicle status. In addition, it enriches the way vehicle instrument display control is performed, improves the richness of vehicle functions, and solves the coordination problem between vehicle controller signal transmission and instrument display in the computer field, ensuring the stable operation of the system.

[0022] The above steps are illustrated by specific embodiments below: In step S101, the vehicle controller sends out a display signal. Here, the vehicle controller refers to the electronic control unit inside the vehicle used to control various functional modules, such as the driver assistance system controller and the air conditioning controller. They are responsible for generating and sending display signals related to the vehicle's status, which are the basis for the vehicle's instrument panel display.

[0023] In one optional implementation, the display signals sent out by the vehicle controller may include various data related to vehicle operation and status, such as vehicle speed information, engine speed, fuel level, coolant temperature, and fault codes. For example, the engine control unit may periodically send out engine speed signals so that the instrument panel can display the engine speed in real time.

[0024] In one optional implementation, the vehicle controller sends out display signals at a certain period, and different vehicle controllers or different display signals may have different sending periods. For example, the vehicle speed signal may be sent with a period of 100ms, while the fuel level signal may be sent with a period of 1s.

[0025] In this embodiment of the application, step S101 specifically includes: controlling the vehicle controller to send out a display signal and setting the instrument node loss flag to 0.

[0026] Here, when the vehicle controller sends out display signals, the instrument node loss flag is set to 0, establishing a unified and clear initial benchmark for signal detection. This ensures that during the initial phase of normal signal transmission, the instrument node loss flag is in an unlost initial state, avoiding misjudgments caused by uncertain initial states (e.g., a residual historical state of 1). For example, when the vehicle starts, the engine control unit begins sending a speed signal and simultaneously sets the corresponding flag to 0, ensuring that the instrument performs detection based on a normal signal from the outset, preventing false alarms due to flag abnormalities.

[0027] In step S102, based on the signal transmission scenario in which the vehicle is located, it is determined whether a display signal is detected under the target power state; wherein, the signal transmission scenario includes one of the following: ignition state periodic transmission scenario, ignition-off state periodic transmission scenario, and ignition-off state periodic transmission scenario, and the target power state is associated with the signal transmission scenario.

[0028] The signal transmission scenarios categorize different situations in which the vehicle controller sends display signals, reflecting the transmission characteristics of display signals under different vehicle power states. Optionally, the ignition-state periodic transmission scenario refers to a scenario where the display signal is periodically transmitted in the ignition state and stops or changes its periodicity in the off state; the off-state periodic transmission scenario refers to a scenario where the display signal is periodically transmitted in the off state and stops or changes its periodicity in the ignition state; and the ignition-off-state periodic transmission scenario refers to a scenario where the display signal is periodically transmitted in both the ignition and off states. The target power state refers to the vehicle power state corresponding to the current signal transmission scenario that requires detection of the display signal, such as ignition state or off state.

[0029] In other words, the "ignition status periodic transmission scenario" refers to a scenario where the display signal is continuously transmitted at a certain period when the vehicle is ignited, but may stop transmitting or change its transmission period when the vehicle is off. For example, the engine speed signal is transmitted periodically when the vehicle is ignited to ensure real-time display on the instrument panel, but stops transmitting when the vehicle is off. The "off status periodic transmission scenario" refers to a scenario where the display signal is transmitted at a certain period when the vehicle is off, but may stop transmitting or change its transmission period when the vehicle is ignited. For example, the vehicle's anti-theft system status signal is transmitted periodically when the vehicle is off to inform relevant modules of the vehicle's anti-theft status, but may not be transmitted when the vehicle is ignited. The "ignition-off status periodic transmission scenario" refers to a scenario where the display signal is transmitted according to its own period in both the ignition and off states. For example, the vehicle's battery power signal is transmitted periodically regardless of whether the vehicle is ignited or off, so that relevant modules can understand the battery status.

[0030] Specifically, when the signal transmission scenario is a periodic transmission scenario in the ignition state, the target power state is the ignition state. In this case, the focus is on detecting whether the display signal can be received in the ignition state. When the signal transmission scenario is a periodic transmission scenario in the off state, the target power state is the off state. In this case, the focus is on detecting the display signal in the off state. When the signal transmission scenario is a periodic transmission scenario in both the ignition and off states, the target power state includes both the ignition and off states, and the display signal needs to be detected separately in both states. For example, the vehicle's clock signal may be transmitted periodically in both the ignition and off states, so it is necessary to detect whether the signal is received in both states.

[0031] Among them, determining whether a display signal is detected under the target power state refers to the process by which the vehicle instrument panel or related receiving module monitors and determines whether a display signal from the vehicle controller is received under the target power state. In an optional implementation, the determination process can be achieved by monitoring whether there is a corresponding signal input at the receiving port. If, under the target power condition, the receiving port receives a display signal that meets the format requirements within a set time, it is determined that a signal has been detected; otherwise, it is determined that no signal has been detected. For example, under ignition condition, the instrument's receiving module continuously monitors the input of the engine speed signal. If the display signal is received within the expected receiving time, it is determined that a display signal has been detected.

[0032] In an alternative implementation, the logic for determining whether a display signal is detected under the target power state may differ for different signal transmission scenarios.

[0033] Furthermore, if the signal transmission scenario is an ignition state cycle transmission scenario, step S102 specifically includes: determining whether a display signal is detected in the ignition state and not in the ignition state, based on the ignition state cycle transmission scenario in which the vehicle is located; if the signal transmission scenario is an ignition state cycle transmission scenario, step S102 specifically includes: determining whether a display signal is detected in the ignition state and not in the ignition state, based on the ignition state cycle transmission scenario in which the vehicle is located; if the signal transmission scenario is an ignition-off-ignition state cycle transmission scenario, step S102 specifically includes: determining whether a display signal is detected in the ignition state or the ignition state, based on the ignition-off-ignition state cycle transmission scenario in which the vehicle is located.

[0034] Here, if the signal transmission scenario is a periodic transmission scenario under ignition status, it determines whether a display signal is detected under ignition status and not under ignition status; if the signal transmission scenario is a periodic transmission scenario under ignition status, it determines whether a display signal is detected under ignition status and not under ignition status; if the signal transmission scenario is a periodic transmission scenario under both ignition and ignition status, it determines whether a display signal is detected under either ignition or ignition status. For example, for the vehicle speed signal in a periodic transmission scenario under ignition status, it checks whether it is received when igniting and does not check when igniting. The above steps, by developing differentiated detection logic for different signal transmission scenarios, ensure that the vehicle's instrument panel detection behavior closely matches the transmission patterns of the displayed signals. In the ignition-state periodic transmission scenario, the displayed signal is primarily transmitted periodically during ignition, and may stop or change its periodicity when the engine is off. In this case, detection is only performed during ignition and not during engine off, avoiding misinterpreting normal signal interruption during engine off as signal loss. For example, the engine speed signal is transmitted periodically during ignition and stops after engine off. If detection continues during engine off, it will be misinterpreted as an anomaly, but this situation will not occur if the above steps are followed.

[0035] Furthermore, the above steps can reduce unnecessary detection operations and lower the computational load on the vehicle's instrument panel. For scenarios involving periodic signal transmission when the engine is off, the display signal is transmitted periodically when the engine is off and may stop when the engine is on. Detection is only performed when the engine is off, and not when the engine is on, thus avoiding invalid detection of unnecessary signals during ignition. For example, the vehicle anti-theft signal is transmitted periodically when the engine is off and stops when the engine is on; not detecting it during ignition saves system resources.

[0036] Furthermore, the above settings ensure that the information displayed on the vehicle's instrument panel more accurately reflects the actual vehicle status, reducing false alarms and user interference. In the ignition / off-state periodic signal transmission scenario, the display signal is transmitted periodically in both states. Therefore, detection in both states allows for timely detection of genuine signal anomalies and prompting the user. Targeted detection in the ignition and off-state periodic signal transmission scenarios avoids false alarms in irrelevant states, ensuring more reliable information for the user. In this way, the signal transmission characteristics differ under different signal transmission scenarios, and the detection logic is adjusted accordingly, making the vehicle's instrument panel signal detection system more stable and reliable, accurately responding to signal changes under various power conditions.

[0037] In step S103, if no display signal is detected, it is determined whether the continuous duration of no display signal detection is greater than the set timeout duration. Here, the continuous duration of no display signal detected refers to the length of time from the first time no display signal was detected to the current moment. The set timeout duration refers to the transmission period of the display signal.

[0038] The signal transmission period is the inherent time interval for normal transmission. Setting the timeout duration to this transmission period allows for precise matching of the signal transmission pattern. For example, if the signal transmission period is 2 seconds and the timeout duration is also set to 2 seconds, when no signal is detected for 2 consecutive seconds, it exceeds a complete transmission period, effectively indicating that the signal has been truly lost. This avoids misjudgments due to short delays in signal transmission (such as a delay of less than 1 second) and reduces false alarms.

[0039] Furthermore, setting the timeout duration to the signal transmission cycle simplifies the system's timeout configuration process and improves its compatibility with different signals. For example, a vehicle speed signal with a 1-second cycle and a fuel level signal with a 3-second cycle can each have their own set timeout duration, allowing for flexible adaptation to various signals. This also ensures timely alerts when a signal is genuinely lost, while avoiding unnecessary false alarms that might disturb the user. For instance, if a signal truly stops transmitting due to a malfunction, the instrument panel will accurately output an error message after one transmission cycle (i.e., the set timeout duration), allowing the user to be promptly informed of the vehicle's status. This ensures more reliable information and improves the user experience.

[0040] Furthermore, this embodiment uses the signal transmission period as the timeout duration, which reduces the system's additional calculations and adjustments to the timeout duration, thereby lowering system resource consumption. The system does not need to continuously run complex algorithms to determine the timeout duration; it only needs to directly call the signal transmission period, improving the operational efficiency of the signal detection logic and ensuring stable and efficient system operation.

[0041] In step S103, the continuous duration can be recorded by a timer. When no display signal is detected for the first time, the timer starts counting. If no display signal is detected during this period, the timer continues to accumulate. Once the display signal is detected, the timer is reset and restarts. For example, if no vehicle speed signal is detected at a certain moment, the timer starts counting. If no display signal is detected within the next second, then the continuous duration is 1 second.

[0042] Optionally, step S103 specifically includes: if the continuous duration is longer than the set timeout duration, then set the instrument node loss flag position 1 to output a display abnormality prompt message for the vehicle instrument.

[0043] Here, when the continuous duration exceeds the set timeout period, the instrument node loss flag is set to 1, which can intuitively and accurately pinpoint the abnormal state of signal loss. The binary nature of the instrument node loss flag (0 indicates normal, 1 indicates abnormal) allows the system to quickly identify and record the signal status, facilitating subsequent display control and fault diagnosis. For example, if the vehicle speed signal is not detected for 3 consecutive seconds (set timeout period is 2 seconds), after the flag is set to 1, the instrument can directly output a vehicle speed signal abnormality prompt based on this flag, and simultaneously store this abnormal state for retrieval during maintenance, improving the efficiency of abnormal response.

[0044] Furthermore, the instrument node loss flag is only set to 1 when the continuous duration exceeds the set timeout period. This effectively filters out transient interference or brief delays in signal transmission, ensuring that the flag is only activated when a genuine signal loss is confirmed. This results in more accurate anomaly alerts, reducing the interference of invalid alarms on the system and users. Additionally, the control module can easily set the flag to 0, 1, and clear it through simple bit operations, providing a fast response and ensuring real-time signal detection and display control.

[0045] In step S104, if the continuous duration exceeds the set timeout duration, an abnormal display prompt message is output for the vehicle instrument panel.

[0046] In this step, the abnormality warning message can be a message conveyed to the user by the vehicle's instrument panel through text, icons, lights, or sounds, indicating that there is an abnormality in the displayed signal. For example, displaying abnormal information could involve showing a text message indicating signal loss on the instrument panel screen, or illuminating the corresponding fault indicator light. For instance, if the duration of the period without a detected engine speed signal exceeds a set timeout period, the instrument panel will display an abnormal engine speed signal message and illuminate the fault light. In one optional embodiment, the present application further includes: after the power state switches from the off state to the ignition state or from the ignition state to the off state, the continuous duration and the instrument node loss flag are cleared to zero.

[0047] For example, switching from an off state to an ignition state or vice versa indicates that the vehicle has completed the transition from one power state to another. The indicator of a completed power state transition can be a state stabilization signal issued by the vehicle's relevant control systems. For instance, when the vehicle switches from an ignition state to an off state, the engine completely stops running, and all controllers enter a dormant state. At this time, the system can issue an off state stabilization signal, indicating that the transition is complete. Specifically, the instrument cluster node loss flag can be stored in the vehicle instrument cluster's flag storage unit, and its status is updated based on signal detection results. When the duration of no detected display signal exceeds a set timeout period, the flag can be set to 1; when the display signal is detected again, the flag is set to 0. For example, when the engine speed signal is lost and the duration exceeds a set value, the corresponding node loss flag will be set to 1.

[0048] Optionally, after receiving the signal that the power state switching is complete, the control module sends a clear command to the timer and the flag storage unit, that is, sends a clear command to the timer that records the continuous duration, and at the same time sets the lost flags of each node stored to 0. Here, the clearing operation can be set to run quickly to ensure that the continuous duration and flag are in their initial state when the display signal is detected in the new power state. For example, the control module can complete the clearing operation of the continuous duration and flag within 10 milliseconds after the power state switch is completed.

[0049] Furthermore, such as Figure 2 As shown, embodiments of this application also include: S201. During the process of switching the power supply from the off state to the ignition state or from the ignition state to the off state, obtain the start-up duration of the vehicle's instrument panel. The startup time of the vehicle instrument panel refers to the time required for the vehicle instrument panel and its related network modules to start up and become stable during the power state switching process.

[0050] Specifically, the startup time is measured by a timing device inside the vehicle, starting from the moment the instrument cluster network module starts up and continuing until the module completes initialization and is able to receive and process display signals normally. For example, if the timing starts when the instrument cluster network module starts up, and it completes startup and stabilizes after 2 seconds, then the startup time is 2 seconds. In one alternative implementation, the startup time depends on factors such as the hardware performance of the instrument cluster network module, the amount of programs and data to be loaded, etc. Modules with better performance may have shorter startup times; while modules that require loading large amounts of data or performing complex initialization operations may have longer startup times. For example, the startup time of some high-end vehicle's fully digital instrument clusters may be slightly longer than that of traditional mechanical instrument clusters due to their complex functions.

[0051] S202. During the startup duration, the display signal is not detected; wherein the startup duration is longer than the set timeout duration or the continuous duration is longer than the sum of the set timeout duration and the startup duration.

[0052] Not detecting the display signal during the startup period means temporarily stopping the judgment and monitoring of the presence and normality of the display signal during the startup period of the vehicle instrument and its network module. In an alternative implementation, this operation can be achieved through software, by disabling the relevant program modules for signal detection or ignoring detected signal state changes during the startup duration. For example, during the 2 seconds of startup, the instrument's signal detection module is in a sleep state and does not perform any detection operations on external display signals. The above operations can avoid misjudgments caused by the inability to accurately receive and process display signals when the instrument and its network module are not yet stable. For example, during the initial startup, the instrument may temporarily not receive display signals because it has not completed initialization. If a test is performed at this time, it will be misjudged as a signal loss. This situation can be avoided by not performing a test during the startup period. Optionally, "start-up time longer than set timeout" means that the time required for the vehicle's instrument panel to start is longer than the preset timeout used to determine whether a signal is abnormal. This setting ensures that during the entire instrument startup process, even if the set timeout period has elapsed, there will be no false judgment due to the lack of signal detection, as the instrument is not yet operating stably. For example, if the timeout period is set to 1.5 seconds and the startup duration is set to 2 seconds, since 2 seconds is greater than 1.5 seconds, no abnormal judgment will be made even if no signal is detected for more than 1.5 seconds during the 2 seconds of startup. Optionally, "continuous duration longer than the sum of the set timeout duration and the startup duration" means that the duration during which no display signal is detected is longer than the sum of the set timeout duration and the startup duration. This setting is designed to accurately determine whether a signal anomaly truly exists after the startup duration has ended. If the continuous duration is only slightly longer than the set timeout duration but less than the sum of the set timeout duration and the startup duration, then the lack of signal detection may be due to the startup process itself, rather than a genuine signal anomaly. For example, if the set timeout duration is 1 second and the startup duration is 2 seconds, their sum is 3 seconds. If the continuous duration is 4 seconds, which is greater than 3 seconds, it indicates that no signal was detected for an extended period after startup, and this can be considered a signal anomaly. In an optional implementation, the relationship between the continuous duration, the set timeout duration, and the start-up duration can be calculated and determined in real time by the vehicle's control system. For example, the control system continuously monitors the continuous duration and compares it with the sum of the set timeout duration and the start-up duration. Only when the continuous duration exceeds the sum will the next step of anomaly detection be performed.

[0053] The vehicle instrument display control method provided in this application, by specifically judging the detection status of the display signal under the target power state according to different signal transmission scenarios, and outputting abnormal prompt information by comparing the continuous duration with the set timeout duration, can accurately identify signal abnormalities caused by power state switching, avoiding false alarms and abnormal information display problems, allowing users to accurately know the vehicle status. In addition, it enriches the vehicle instrument display control methods, improves the richness of vehicle functions, and solves the coordination problem between vehicle controller signal transmission and instrument display in the computer field, ensuring the stable operation of the system.

[0054] Based on the same inventive concept, this application also provides a display control device for a vehicle instrument corresponding to the display control method for a vehicle instrument. Since the principle of the device in this application is similar to the display control method for a vehicle instrument described above, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be described again.

[0055] Please see Figure 3 , Figure 3 This is a schematic diagram of the structure of a display control device for a vehicle instrument panel provided in an embodiment of this application, as shown below. Figure 3 As shown, the device 300 includes: Signal control module 301 is used to control the external display signals sent by the vehicle controller; The signal detection module 302 is used to determine whether the display signal is detected in the target power state according to the signal transmission scenario in which the vehicle is located; wherein, the signal transmission scenario includes one of the following: ignition state periodic transmission scenario, ignition-off state periodic transmission scenario, and ignition-off state periodic transmission scenario, and the target power state is associated with the signal transmission scenario; The duration detection module 303 is used to determine whether the continuous duration of the absence of the display signal is greater than a set timeout duration if the display signal is not detected. The abnormality prompt module 304 is used to output abnormality prompt information for the vehicle instrument display if the continuous duration exceeds the set timeout duration.

[0056] In an optional embodiment, if the signal transmission scenario is an ignition state periodic transmission scenario, the signal detection module 302 is used to: determine whether the display signal is detected in the ignition state and not detect the display signal in the off state, based on the ignition state periodic transmission scenario in which the vehicle is located. If the signal transmission scenario is a periodic transmission scenario in the off state, the signal detection module 302 is used to: determine whether the display signal is detected in the off state and not in the ignition state based on the periodic transmission scenario in which the vehicle is in the off state; If the signal transmission scenario is a periodic transmission scenario of ignition and shutdown states, the signal detection module 302 is used to: determine whether the display signal is detected in the ignition state or the shutdown state according to the periodic transmission scenario of the ignition and shutdown state of the vehicle.

[0057] In one optional embodiment, the ignition state periodic transmission scenario refers to a scenario where the display signal is periodically transmitted in the ignition state and stops or changes its periodicity in the ignition-off state; the ignition-off state periodic transmission scenario refers to a scenario where the display signal is periodically transmitted in the ignition-off state and stops or changes its periodicity in the ignition state; and the ignition-off state periodic transmission scenario refers to a scenario where the display signal is periodically transmitted in both the ignition and ignition-off states.

[0058] In one optional embodiment, the set timeout duration refers to the transmission cycle of the display signal.

[0059] In one optional embodiment, the signal control module 301 is specifically used to: control the vehicle controller to send out a display signal and set the instrument node loss flag position to 0; The abnormality prompt module 304 is specifically used to: if the continuous duration is greater than the set timeout duration, set the instrument node loss flag position 1 to output abnormal display prompt information for the vehicle instrument.

[0060] In an optional embodiment, the device further includes a reset module (not shown in the figure), which is used to: reset the continuous duration and the instrument node loss flag after the power state switches from the off state to the ignition state or from the ignition state to the off state.

[0061] In an optional embodiment, the signal detection module 302 is further configured to: acquire the startup duration of the vehicle instrument during the process of switching the power state from a shutdown state to an ignition state or from an ignition state to a shutdown state; and not detect the display signal during the startup duration; wherein the startup duration is greater than the set timeout duration or the continuous duration is greater than the sum of the set timeout duration and the startup duration.

[0062] The device provided in this application embodiment determines the detection status of the displayed signal under the target power state according to different signal transmission scenarios, and outputs abnormal prompt information by comparing the continuous duration with the set timeout duration. It can accurately identify signal abnormalities caused by power state switching, avoiding false alarms and abnormal information display problems, allowing users to accurately know the vehicle status. In addition, it enriches the way vehicle instrument display control is performed, improves the richness of vehicle functions, and solves the coordination problem between vehicle controller signal transmission and instrument display in the computer field, ensuring the stable operation of the system.

[0063] Please see Figure 4 , Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 4 As shown, the electronic device 400 includes a processor 410, a memory 420, and a bus 430.

[0064] The memory 420 stores machine-readable instructions executable by the processor 410. When the electronic device 400 is running, the processor 410 communicates with the memory 420 via the bus 430. When the machine-readable instructions are executed by the processor 410, they can perform the operations described above. Figure 1 as well as Figure 2 The steps of the vehicle instrument display control method in the method embodiment shown are described in detail in the method embodiment, and will not be repeated here.

[0065] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can perform the above-described actions. Figure 1 as well as Figure 2 The steps of the vehicle instrument display control method in the method embodiment shown are described in detail in the method embodiment, and will not be repeated here.

[0066] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0067] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0068] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0069] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0070] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0071] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A display control method for a vehicle instrument panel, characterized in that, The method includes: Control the vehicle controller to send external display signals; Based on the signal transmission scenario in which the vehicle is located, it is determined whether the display signal is detected under the target power state; wherein, the signal transmission scenario includes one of the following: ignition state periodic transmission scenario, ignition-off state periodic transmission scenario, and ignition-off state periodic transmission scenario, and the target power state is associated with the signal transmission scenario; If the display signal is not detected, determine whether the continuous duration of the absence of the display signal is greater than the set timeout duration; If the continuous duration exceeds the set timeout duration, an abnormal display message will be output to the vehicle's instrument panel.

2. The method according to claim 1, characterized in that, If the signal transmission scenario is an ignition state cycle transmission scenario, the step of determining whether the display signal is detected under the target power state based on the signal transmission scenario in which the vehicle is located includes: Based on the vehicle's ignition state cycle, determine whether the display signal is detected during the ignition state and not during the ignition-off state; If the signal transmission scenario is a periodic transmission scenario in a powered-off state, the step of determining whether the display signal is detected in the target power state based on the signal transmission scenario in which the vehicle is located includes: Based on the vehicle's off state periodic transmission scenario, determine whether the display signal is detected in the off state and not in the ignition state; If the signal transmission scenario is a periodic transmission scenario under ignition-off state, the step of determining whether the display signal is detected under the target power state based on the signal transmission scenario of the vehicle includes: Based on the vehicle's ignition / off state, the system periodically sends scenarios to determine whether the display signal is detected in either the ignition or off state.

3. The method according to claim 1, characterized in that, The ignition state periodic transmission scenario refers to a scenario where the display signal is periodically transmitted in the ignition state and stops or changes its periodicity in the ignition-off state; the ignition-off state periodic transmission scenario refers to a scenario where the display signal is periodically transmitted in the ignition-off state and stops or changes its periodicity in the ignition state; the ignition-off state periodic transmission scenario refers to a scenario where the display signal is periodically transmitted in both the ignition and ignition-off states.

4. The method according to claim 1, characterized in that, The set timeout duration refers to the transmission cycle of the display signal.

5. The method according to claim 1, characterized in that, The external display signals sent by the vehicle controller include: Control the vehicle controller to send external display signals and set the instrument node loss flag to 0; If the continuous duration exceeds the set timeout duration, an abnormal display prompt message is output for the vehicle instrument panel, including: If the continuous duration exceeds the set timeout duration, the instrument node loss flag position 1 will be set to output a display abnormality prompt message for the vehicle instrument.

6. The method according to claim 5, characterized in that, The method further includes: After the power state switches from off state to ignition state or from ignition state to off state, the continuous duration and the instrument node loss flag are cleared to zero.

7. The method according to claim 1, characterized in that, The method further includes: During the process of switching the power status from off to ignition or from ignition to off, the startup duration of the vehicle's instrument panel is obtained. During the startup duration, the display signal is not detected; wherein the startup duration is longer than the set timeout duration or the continuous duration is longer than the sum of the set timeout duration and the startup duration.

8. A display control device for a vehicle instrument panel, characterized in that, The device includes: The signal control module is used to control the external display signals sent by the vehicle controller; The signal detection module is used to determine whether the display signal is detected in the target power state based on the signal transmission scenario in which the vehicle is located; wherein, the signal transmission scenario includes one of the following: ignition state periodic transmission scenario, ignition-off state periodic transmission scenario, and ignition-off state periodic transmission scenario, and the target power state is associated with the signal transmission scenario; The duration detection module is used to determine whether the continuous duration of the absence of the display signal is greater than a set timeout duration if the display signal is not detected. The error message module is used to output an error message on the vehicle instrument panel if the continuous duration exceeds the set timeout duration.

9. An electronic device, characterized in that, include: The device includes a processor, a memory, and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is in operation, the processor communicates with the memory via the bus, and the processor executes the machine-readable instructions to perform the steps of the method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, performs the steps of the method as described in any one of claims 1 to 7.

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