Electronic rearview mirror control method, apparatus, and vehicle

Abstract

The application provides an electronic rearview mirror control method, device and vehicle, and the method comprises the following steps: after detecting an engine-off signal, performing a delay power supply operation on an electronic rearview mirror of the vehicle, so that a display module in the electronic rearview mirror continues to keep the screen on; after the delay power supply operation ends and the display module turns off the screen, if a preset risk event is detected, the display module is re-controlled to keep the screen on for a first delay power supply duration; the preset risk event comprises at least one of the following events: a user in the vehicle has a get-off intention, the user in the vehicle touches an in-vehicle door handle, or a vehicle-mounted radar detects that the vehicle is in a dangerous environment. Through the delay power supply operation and the risk re-awakening of the display module, the application solves the problem of field-of-view interruption after the vehicle is turned off, covers complex risk scenarios, reduces the collision risk when the user gets off, and improves the safety of the user getting off.

Description

Technical Field

[0001] This application relates to the field of electronic control technology, and in particular to an electronic rearview mirror control method, electronic device, and vehicle. Background Technology

[0002] Existing electronic rearview mirror systems rely on the vehicle's main power supply. Their power supply logic is tied to the vehicle's overall sleep logic. That is, when the vehicle is turned off, it quickly enters a sleep state, the vehicle's power supply cuts off the power to non-core electrical equipment, and the electronic rearview mirror screen immediately turns off, which poses a significant safety risk when the user gets out of the car. Summary of the Invention

[0003] This invention provides an electronic rearview mirror control method, electronic device, and vehicle, aiming to improve the technical problem in the prior art where the screen of the electronic rearview mirror immediately turns off after the vehicle is turned off, posing a risk to the user when getting out of the vehicle.

[0004] An electronic rearview mirror control method, comprising: Upon detecting an engine shutdown signal, a delayed power supply operation is performed on the vehicle's electronic rearview mirror to keep the display module in the electronic rearview mirror lit. After the delayed power supply operation ends and the display module turns off, if a preset risk event is detected, the display module will be controlled to remain on for the first delayed power supply duration. The preset risk event includes at least one of the following events: the user inside the vehicle intends to get out of the vehicle, the user inside the vehicle touches the door handle inside the vehicle, or the vehicle radar detects that the vehicle is in a dangerous environment.

[0005] In this embodiment, the electronic rearview mirror control method detects an engine shutdown signal, thus determining the start of a delayed power supply operation. This ensures the display module remains lit after the vehicle is turned off, preventing interruption of vision. After the delayed power supply operation ends and the display module turns off, the electronic rearview mirror is reactivated upon detecting a preset risk event. This reactivates the display module, keeping it lit for the first delayed power supply duration, resolving the issue of interrupted vision after the vehicle is turned off. This also covers complex risk scenarios, reduces the collision risk when the user exits the vehicle, and improves the user's safety.

[0006] Furthermore, the delayed power supply operation includes: If the power supply duration of the delayed power supply operation does not reach the second delayed power supply duration, and if it is confirmed that the vehicle meets the interruption condition of the delayed power supply operation, then the delayed power supply operation is terminated and the display module is turned off; the interruption condition includes at least one of the following conditions: the user in the vehicle leaves the vehicle, the door is locked, there are no signs of life activity in the vehicle, or the vehicle's on-board battery voltage is lower than a preset voltage threshold.

[0007] In this embodiment, by using the second delayed power supply duration and the interruption condition, the display module continues to keep its screen lit during the second delayed power supply duration after the vehicle is turned off, thereby avoiding interruption of the user's view when getting out of the vehicle and improving the user's safety when getting out of the vehicle. Then, when the vehicle meets the interruption condition, the display module is controlled to turn off, avoiding the loss of vehicle battery power.

[0008] Furthermore, the delayed power supply operation also includes: When the power supply duration of the delayed power supply operation reaches the second delayed power supply duration, the delayed power supply operation ends, and the display module turns off.

[0009] In this embodiment, by setting a second delay power supply duration for the delayed power supply operation, battery consumption is avoided, thereby balancing safety and energy efficiency, and thus improving the user experience.

[0010] Furthermore, the delayed power supply operation also includes: When the power supply duration of the delayed power supply operation reaches a preset prompt time point, and the display module has not yet turned off, a countdown is displayed in a preset area of ​​the display module. The preset prompt time point includes the difference between the second delayed power supply duration and the preset interval duration.

[0011] In this embodiment, by using a preset prompt time and a preset area in the display module, the remaining time of the delayed power supply operation is prompted, thereby providing an alarm for users getting out of the vehicle and reducing the risk of loss of vision when users get out of the vehicle.

[0012] Further, the step of confirming the end of the delayed power supply operation and controlling the display module to turn off the screen if the vehicle meets the interruption conditions of the delayed power supply operation includes: If the vehicle meets the interruption condition of the delayed power supply operation when the vehicle's on-board battery voltage is lower than the preset voltage threshold, an alarm sound will be played, a low voltage alarm message will be displayed on the display module, the delayed power supply operation will end, and the display module will turn off.

[0013] In this embodiment, by setting a preset voltage threshold and alarm tone, an alarm prompt is made for low vehicle battery voltage, thereby prompting the user in the vehicle to end the delayed power supply operation. This achieves alarms for multiple dimensions of status, and thus ensures that the power consumption during the delay period is controllable, avoiding the impact on vehicle startup.

[0014] Furthermore, the delayed power supply operation includes: When an abnormal malfunction is detected in the electronic rearview mirror, an abnormal handling operation corresponding to the abnormal malfunction is executed, and the fault information corresponding to the abnormal malfunction is reported. The abnormal malfunction includes at least one of camera failure, display module failure, or power supply failure.

[0015] In this embodiment, abnormal faults are handled and backup plans are switched through abnormal fault and abnormal handling operations, thereby avoiding the risk of loss of vision caused by a single system failure and improving the safety of users getting off the vehicle.

[0016] Furthermore, after re-controlling the display module to remain on during the first power delay duration, the method further includes: When it is determined that the vehicle is at night, the night vision enhancement function of the camera of the electronic rearview mirror is activated, and the display module is adjusted to night mode.

[0017] In this embodiment, the night vision enhancement function and night mode are used to cover complex risk scenarios, reduce the collision risk when the user gets out of the vehicle, and improve the safety of the user when getting out of the vehicle.

[0018] Furthermore, to determine if the user inside the vehicle intends to get out of the vehicle, image analysis is performed on all images taken inside the vehicle to obtain the head and torso features of the user inside the vehicle, and the head and torso features match the preset getting-out features. The user inside the vehicle touches the door handle when the pressure signal collected by the pressure sensor in the door handle exceeds a preset pressure threshold. The vehicle-mounted radar detects that the vehicle is in a dangerous environment when the distance between the vehicle and an external object detected by the vehicle-mounted radar is less than a preset distance threshold.

[0019] In this embodiment, image analysis taken inside the vehicle enables the recognition of head and torso features, thereby determining the user's intention to exit the vehicle. The use of pressure sensors and preset pressure thresholds further enhances the accuracy of intention recognition. Vehicle-mounted radar monitoring provides coverage of complex and risky scenarios, improving safety.

[0020] An electronic device includes a processor and a memory, wherein, Memory, used to store computer programs; The processor is used to execute the program stored in the memory to implement the above-mentioned electronic rearview mirror control method.

[0021] A vehicle that includes the aforementioned electronic equipment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a flowchart illustrating an embodiment of the electronic rearview mirror control method provided in this application; Figure 2 This is a flowchart illustrating step S201 of the electronic rearview mirror control method provided in an embodiment of this application; Figure 3 This is a flowchart illustrating step S301 of the electronic rearview mirror control method provided in an embodiment of this application; Figure 4 This is a flowchart illustrating step S401 of an electronic rearview mirror control method provided in an embodiment of this application; Figure 5 This is a flowchart illustrating step S501 of the electronic rearview mirror control method provided in an embodiment of this application; Figure 6 This is a flowchart illustrating step S601 of the electronic rearview mirror control method provided in an embodiment of this application; Figure 7 This is a flowchart illustrating step S701 of the electronic rearview mirror control method provided in an embodiment of this application; Figure 8 This is a flowchart illustrating step S801 of the electronic rearview mirror control method provided in an embodiment of this application; Figure 9 This is a schematic diagram of an electronic device provided in an embodiment of this application; Figure 10 This is a flowchart illustrating an electronic rearview mirror control method provided in another embodiment of this application; Figure 11 This is a flowchart illustrating a delayed power supply scenario for an electronic rearview mirror control method provided in an embodiment of this application. Figure 12 This is a flowchart illustrating the alarm prompt of an electronic rearview mirror control method provided in an embodiment of this application. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] 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, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] In one embodiment, please refer to Figure 1 Please refer to Figure 11 This paper provides an electronic rearview mirror control method, which can be applied to applications such as... Figure 9 The processor includes the following steps S101-S102: S101. After detecting the engine shutdown signal, a delayed power supply operation is performed on the vehicle's electronic rearview mirror so that the display module in the electronic rearview mirror continues to be lit.

[0027] S102. After the delayed power supply operation ends and the display module turns off, if a preset risk event is detected, the display module is controlled to remain on for the first delayed power supply duration. The preset risk event includes at least one of the following events: the user inside the vehicle intends to get out of the vehicle, the user inside the vehicle touches the door handle inside the vehicle, or the vehicle radar detects that the vehicle is in a dangerous environment.

[0028] The ignition shutdown signal is generated after the CAN (Controller Area Network) bus switches from an active state to a sleep state. The CAN bus is a serial communication bus primarily used for reliable data communication between multiple electronic control units (ECUs) in automotive control systems. Electronic rearview mirrors include, but are not limited to, cameras located outside the vehicle and display modules located inside the vehicle. The electronic rearview mirror uses the external camera to capture images of the rear / side view and displays these images in real-time through the internal display module. The display module can be a screen used to display the images captured by the camera in the electronic rearview mirror; it can be located inside the door or in other locations. The CAN detection unit is a monitoring unit used to monitor the status of the CAN bus.

[0029] As an example, in step S101, the CAN bus status is monitored in real time by the CAN detection unit. Before the vehicle is turned off, the CAN bus is in an active state and the display module in the electronic rearview mirror is in a lit state. After the vehicle is turned off, the CAN bus will switch from an active state to a sleep state. At this time, the CAN detection unit captures the engine shutdown signal and sends the engine shutdown signal to the core control unit of the processor.

[0030] Upon detecting an engine shutdown signal, to prevent the camera in the electronic rearview mirror from shutting down and the display module from immediately turning off, thus avoiding safety risks when the user exits the vehicle, the core control unit controls the vehicle battery to perform a delayed power supply operation to the electronic rearview mirror. Specifically, the core control unit controls the vehicle's electronic rearview mirror to turn on for a delayed period, that is, controls the vehicle to continuously supply power to the electronic rearview mirror (including the camera and display module) for a delay period (for example, the delay period can be the second delayed power supply period mentioned later, but within the second delayed power supply period, if the vehicle is detected to meet the interruption conditions of the delayed power supply operation, this delay period may be shorter than the second delayed power supply period), thereby controlling the in-vehicle display module to remain lit to ensure user safety. Understandably, at the end of the delay period, the core control unit controls the vehicle battery to stop supplying power to the electronic rearview mirror, that is, the camera in the electronic rearview mirror turns off, and the display module switches from lit to off. At this point, the delayed power supply operation of the electronic rearview mirror can be considered to have ended.

[0031] As an example, in step S102, after the delayed power supply operation ends and the display module turns off, it is detected in real time whether a preset risk event has occurred. The preset risk event includes, but is not limited to, at least one of the following events: the user inside the vehicle intends to get out of the vehicle, the user inside the vehicle touches the door handle inside the vehicle, or the vehicle radar detects that the vehicle is in a dangerous environment.

[0032] Specifically, the core control unit detects whether a user inside the vehicle intends to get out, whether a user touches the door handle, or whether the vehicle radar detects that the vehicle is in a dangerous environment. If one or more preset risk events are detected, the display module is reactivated to remain lit for a first power delay duration. The first power delay duration refers to the duration after the electronic rearview mirror is reactivated, during which the camera in the electronic rearview mirror continues to capture the field of view and the display module inside the vehicle remains lit. For example, the first power delay duration can be set according to needs, such as 1 minute, 2 minutes, 3 minutes, etc. Specifically, when a preset risk event is detected, the core control unit controls the vehicle's onboard battery to continuously supply power to the electronic rearview mirror (including the camera and display module) for a first delayed power supply duration, and re-wakes up the electronic rearview mirror that has been turned off, so that the field of view captured in real time by the camera in the electronic rearview mirror can be displayed in real time on the display module in the vehicle; then, when the duration of re-wake-up of the electronic rearview mirror reaches the first delayed power supply duration, the power supply to the electronic rearview mirror is stopped, at which time the camera in the electronic rearview mirror is turned off, and the display module switches back from on to off.

[0033] In this embodiment, the electronic rearview mirror control method detects an engine shutdown signal, thus determining the start of a delayed power supply operation. This ensures the display module remains lit after the vehicle is turned off, preventing interruption of vision. After the delayed power supply operation ends and the display module turns off, the electronic rearview mirror is reactivated upon detecting a preset risk event. This reactivates the display module, keeping it lit for the first delayed power supply duration, resolving the issue of interrupted vision after the vehicle is turned off. This also covers complex risk scenarios, reduces the collision risk when the user exits the vehicle, and improves the user's safety.

[0034] In another embodiment, such as Figure 10 As shown, after receiving the engine shutdown signal captured by the CAN detection unit, the core control unit will control the vehicle's electronic rearview mirrors to turn on with a delay. This means the vehicle will continuously supply power to the electronic rearview mirrors for the delay period, thereby keeping the in-vehicle display module on and displaying a power-delay countdown. Then, it checks if the power-delay countdown has ended. If it has, the electronic rearview mirrors turn off, and the display module turns off. If the countdown hasn't ended, it checks if the user has exited the vehicle or if the door has closed. If so, the electronic rearview mirrors turn off, and the display module turns off. If not, the vehicle battery voltage is checked to see if it's below a preset voltage threshold. If it is, the electronic rearview mirrors turn off, and the display module turns off. If the battery voltage is greater than or equal to the preset voltage threshold, the power-delay operation continues.

[0035] In one embodiment, please refer to Figure 8 Step S101 includes: S801. The user inside the vehicle has the intention to get off the vehicle. This is determined by image analysis of all images taken inside the vehicle to obtain the head and torso features of the user inside the vehicle, and the head and torso features match the preset getting-off features.

[0036] S802, the user touching the door handle inside the vehicle is due to a pressure signal collected by the pressure sensor in the door handle exceeding a preset pressure threshold.

[0037] S803, the vehicle-mounted radar detects that the vehicle is in a dangerous environment when the distance between the vehicle-mounted radar and an external object is less than a preset distance threshold.

[0038] In this context, in-vehicle images refer to images captured by in-vehicle cameras at the driver's and / or passenger's positions. Preset exit characteristics refer to pre-defined behavioral features used to determine if a user intends to exit the vehicle, such as head turning towards the door, hand touching the door handle, or leaning forward. Head features refer to the user's head posture. Torso features refer to the user's body posture.

[0039] As an example, in step S801, after the delayed power supply operation ends and the display module turns off, at least one in-vehicle image is captured by the in-vehicle camera at the driver's position and / or the passenger's position, and all in-vehicle images are sent to the core control unit. Then, the core control unit performs image analysis on all in-vehicle images. Specifically, head keypoint detection is performed on each in-vehicle image to obtain the head region corresponding to each in-vehicle image, and then the head posture in all head regions is identified to obtain head features. Similarly, torso keypoint detection is performed on each in-vehicle image to obtain the torso region corresponding to each in-vehicle image, and then the torso posture in all torso regions is identified to obtain torso features. Next, preset exit features are obtained, and it is determined whether the head features and torso features match the preset exit features. If both the head features and torso features match the preset exit features, it is determined that the user in the vehicle intends to exit. The preset exit features can be head and torso features facing the door.

[0040] In one example, limb keypoints are detected in all in-vehicle images to obtain limb regions corresponding to each in-vehicle image. The positional relationship between the limb regions and the in-vehicle door handles is then detected to obtain limb features. Preset exit features are obtained, and it is determined whether the head, limb, and torso features match the preset exit features. If all three features match the preset exit features, it is determined that a user in the vehicle intends to exit. The preset exit features can be that the head and torso features are facing the door, and the limb features are located on the in-vehicle door handle.

[0041] As an example, in step S802, after the delayed power supply operation ends and the display module turns off, the pressure sensor in the vehicle door handle is monitored in real time to determine whether a pressure signal is generated. The pressure sensor generates a pressure signal and sends the detected pressure signal to the core control unit. The core control unit compares the pressure signal with a preset pressure threshold to determine whether the pressure signal exceeds the preset pressure threshold. When the core control unit detects that the pressure signal exceeds the preset pressure threshold, it determines that a user inside the vehicle has touched the vehicle door handle. The preset pressure threshold can be set according to the pressure range of a person's hand gripping the vehicle door handle to open the door.

[0042] As an example, in step S803, after the delayed power supply operation ends and the display module turns off, the vehicle's surrounding field of view is monitored in real time by the vehicle-mounted radar. When the vehicle-mounted radar detects that the distance between an external object and the vehicle is less than a preset distance threshold, it is determined that the vehicle is in a dangerous environment. External objects can refer to obstacles, pedestrians, or other vehicles. The preset distance threshold can be determined based on the relative speed between the vehicle and the external object, the vehicle's braking capability, etc.

[0043] In this embodiment, image analysis taken inside the vehicle enables the recognition of head and torso features, thereby determining the user's intention to exit the vehicle. The use of pressure sensors and preset pressure thresholds further enhances the accuracy of intention recognition. Vehicle-mounted radar monitoring provides coverage of complex and risky scenarios, improving safety.

[0044] In one embodiment, please refer to Figure 2 Please refer to Figure 11 In step S101, the delayed power supply operation includes: S201. When the power supply duration of the delayed power supply operation does not reach the second delayed power supply duration, if it is confirmed that the vehicle meets the interruption condition of the delayed power supply operation, the delayed power supply operation is terminated and the display module is turned off; the interruption condition includes at least one of the following conditions: the user in the vehicle leaves the vehicle, the door is locked, there are no signs of life activity in the vehicle, or the vehicle's on-board battery voltage is lower than a preset voltage threshold.

[0045] The second delayed power supply duration refers to the preset duration for which the electronic rearview mirror continues to operate after the vehicle is turned off. This time can be adjusted according to actual conditions, for example, 1 minute, 3 minutes, 4 minutes and 15 seconds, or 5 minutes. The interruption conditions for the delayed power supply operation include at least one of the following: the user leaves the vehicle, the doors are locked, there are no signs of life inside the vehicle, or the vehicle's battery voltage is lower than a preset voltage threshold. The power supply duration refers to the interval from the start of the delayed power supply operation to the current time. Since the delayed power supply operation starts immediately after the engine shutdown signal is detected, the power supply duration can also refer to the interval from the time the engine shutdown signal is detected to the current time.

[0046] As an example, in step S201, when the power supply duration of the delayed power supply operation does not reach the second delayed power supply duration, it is detected in real time whether the vehicle meets the interruption conditions of the delayed power supply operation. The interruption conditions of the delayed power supply operation include, but are not limited to, at least one of the following conditions: the user in the vehicle leaves the vehicle, the door is locked, there are no signs of life activity in the vehicle, or the vehicle's on-board battery voltage is lower than a preset voltage threshold.

[0047] Specifically, after detecting an engine shutdown signal, the core control unit controls the vehicle battery to perform a delayed power supply operation to the electronic rearview mirror. Simultaneously, the core control unit begins to calculate the duration of the delayed power supply operation (the interval between the start time of the delayed power supply operation and the current time). If the duration of the delayed power supply operation has not reached the second delayed power supply duration, the core control unit will detect whether the user has left the vehicle, whether the doors are locked, whether there are any signs of life activity inside the vehicle, and whether the vehicle battery voltage is below a preset voltage threshold. If one or more interruption conditions of the delayed power supply operation are detected, it is determined that the vehicle meets the interruption conditions, and the core control unit controls the vehicle battery to stop supplying power to the camera and display module in the electronic rearview mirror.

[0048] In one example, the core control unit controls one or more cameras inside the vehicle (unrelated to the cameras in the electronic rearview mirror, used to detect the intention of a user to exit the vehicle) to capture images of the driver's seat, passenger seat, and rear seats, and performs personnel analysis on the captured images. Upon detecting that the driver has left the vehicle and there are no signs of life inside, and simultaneously detecting a door lock signal from the driver via the CAN detection unit, and sending the detected door lock signal to the core control unit, the core control unit immediately cuts off power supply from the vehicle battery to the cameras and display module in the electronic rearview mirror.

[0049] In one example, the core control unit controls one or more cameras inside the vehicle to capture images of the driver's position and performs personnel analysis on the captured images. A CAN detection unit detects that the driver has locked the doors and sends this signal to the core control unit. If the driver is detected leaving the vehicle and the doors are locked, the core control unit controls the vehicle battery to supply power to the camera and display module in the electronic rearview mirror for a delayed period of three times, after which the delayed power supply stops. The third delayed power supply period refers to the duration for which the camera and display module in the electronic rearview mirror remain illuminated after the driver leaves the vehicle. For example, the third delayed power supply period can be set according to requirements, such as 5 seconds, 10 seconds, or 15 seconds. The time difference between the second delayed power supply period and the duration of the delayed power supply operation is greater than or equal to the third delayed power supply period; that is, the remaining time before the second delayed power supply period is greater than or equal to the third delayed power supply period.

[0050] In one example, the core control unit controls one or more cameras inside the vehicle to capture images of the driver's position and performs personnel analysis on the captured images. A CAN detection unit detects that the driver has locked the doors and sends the detected lock signal to the core control unit. If the driver is detected to have left the vehicle and the doors are locked, the core control unit controls the vehicle battery to stop supplying power to the camera and display module in the electronic rearview mirror when the duration of the delayed power supply operation reaches the second delayed power supply duration. The time difference between the second delayed power supply duration and the duration of the delayed power supply operation is less than the third delayed power supply duration; that is, the remaining time before the second delayed power supply duration is less than the third delayed power supply duration.

[0051] In this embodiment, by using the second delayed power supply duration and the interruption condition, the display module continues to keep its screen lit during the second delayed power supply duration after the vehicle is turned off, thereby avoiding interruption of the user's view when getting out of the vehicle and improving the user's safety when getting out of the vehicle. Then, when the vehicle meets the interruption condition, the display module is controlled to turn off, avoiding the loss of vehicle battery power.

[0052] In one embodiment, please refer to Figure 3 In step S201, the delayed power supply operation includes, as well as: S301. When the power supply duration of the delayed power supply operation reaches the second delayed power supply duration, the delayed power supply operation ends, and the display module turns off.

[0053] Among them, screen off means stopping power supply to the display module and no longer displaying images.

[0054] As an example, in step S301, after detecting the engine shutdown signal, the core control unit controls the vehicle battery to perform a delayed power supply operation to the electronic rearview mirror and begins to count the duration of the delayed power supply operation. When the duration of the delayed power supply operation reaches the second delayed power supply duration, the core control unit controls the vehicle battery to stop supplying power to the camera and display module in the electronic rearview mirror, confirms the end of the delayed power supply operation, and that the camera in the electronic rearview mirror stops working and the display module turns off.

[0055] In one example, the signal detected by the CAN detection unit is sent to the core control unit. The core control unit determines whether the vehicle meets the interruption conditions of the delayed power supply operation based on all the information. When the power supply duration of the delayed power supply operation reaches the second delayed power supply duration, if the vehicle meets the interruption conditions of the delayed power supply operation, the delayed power supply operation is controlled to continue working, and the delayed power supply operation ends after the user in the vehicle gets off.

[0056] In this embodiment, by setting a second delay power supply duration for the delayed power supply operation, battery consumption is avoided, thereby balancing safety and energy efficiency, and thus improving the user experience.

[0057] In one embodiment, please refer to Figure 4 Please refer to Figure 12 In step S201, the delayed power supply operation includes, as well as: S401. When the power supply duration of the delayed power supply operation reaches a preset prompt time point, and the display module has not yet turned off, a countdown is displayed in a preset area of ​​the display module. The preset prompt time point includes the difference between the second delayed power supply duration and the preset interval duration.

[0058] The preset prompt time includes the difference between the second delayed power supply duration and the preset interval duration. The preset interval duration refers to a pre-set countdown before the delayed power supply operation stops, for example, 10 seconds remaining.

[0059] As an example, in step S401, after detecting the engine shutdown signal, the core control unit controls the vehicle battery to perform a delayed power supply operation to the electronic rearview mirror and begins to count the duration of the delayed power supply operation. Specifically, when the power supply duration reaches a preset prompt time point and the display module has not yet turned off, a countdown is displayed in a preset area of ​​the display module to remind the user inside the vehicle that the delayed power supply operation is about to end.

[0060] In one example, the second delayed power supply duration is 120 seconds, the preset prompt time is 110 seconds, and the preset interval duration is 10 seconds. When the power supply duration of the delayed power supply operation is 110 seconds, a countdown is displayed in the preset area of ​​the display module to prompt the user in the vehicle that the delayed power supply operation is about to end.

[0061] In one example, the countdown is displayed at the edge of the display module, or it can be displayed by playing a countdown in the display module, or by adding color to the display module to indicate the countdown.

[0062] In this embodiment, by using a preset prompt time and a preset area in the display module, the remaining time of the delayed power supply operation is prompted, thereby providing an alarm for users getting out of the vehicle and reducing the risk of loss of vision when users get out of the vehicle.

[0063] In one embodiment, after the re-control of the electronic rearview mirror to remain on during the second delayed power supply period, the process includes: When the power supply duration after the electronic rearview mirror screen is turned on reaches the warning time point, and the display module has not yet turned off, a countdown is displayed in a preset area of ​​the display module. The warning time point includes the difference between the second delayed power supply duration and the preset interval duration.

[0064] The preset prompt time includes the difference between the second delayed power supply duration and the preset interval duration. The preset interval duration refers to a pre-set countdown before the delayed power supply operation stops, for example, 30 seconds remaining.

[0065] As an example, after the electronic rearview mirror screen is turned on again, the duration of power supply for the delayed power supply operation is counted. When the power supply duration reaches the warning time point and the display module has not yet turned off, specifically, when the power supply duration reaches the warning time point and the display module has not yet turned off, a countdown is displayed in a preset area in the display module.

[0066] In one example, a countdown is displayed at the edge of the display module, or it can be indicated by playing a countdown and increasing the countdown color.

[0067] In this embodiment, by using warning time points and preset areas, an alarm for delayed power supply time is realized, thereby prompting users inside the vehicle to get off and reducing the risk of loss of visibility.

[0068] In one embodiment, please refer to Figure 5 In step S201, if it is confirmed that the vehicle meets the interruption conditions of the delayed power supply operation, then confirming the end of the delayed power supply operation and controlling the display module to turn off the screen includes: S501. If the vehicle meets the interruption condition of the delayed power supply operation, which is that the vehicle's on-board battery voltage is lower than the preset voltage threshold, then an alarm sound is played, and a low voltage alarm message is displayed on the display module, and the delayed power supply operation ends, and the display module screen turns off.

[0069] Here, the vehicle battery voltage refers to the potential difference between the positive and negative terminals of the vehicle battery. The preset voltage threshold is a pre-set voltage value used to assess the vehicle battery's charge level; for example, the preset voltage threshold could be a critical depletion value, meaning the vehicle battery is considered depleted when its voltage falls below this value. The alarm tone is the sound that sounds when the voltage is below the preset voltage threshold.

[0070] As an example, in step S501, the power management unit converts the vehicle battery voltage to a voltage compatible with the electronic rearview mirror, and sends the real-time monitored vehicle battery voltage to the core control unit. The core control unit obtains a preset voltage threshold and detects whether the vehicle battery voltage is lower than the preset voltage threshold. When the core control unit detects that the vehicle meets the interruption condition of the delayed power supply operation—that the vehicle battery voltage is lower than the preset voltage threshold—it controls the alarm module to play an alarm sound, displays a low voltage alarm message on the display module, confirms the end of the delayed power supply operation, and that the camera in the electronic rearview mirror stops working and the display module turns off.

[0071] In one example, when the power supply duration of the delayed power supply operation, as counted by the core control unit, is within the second delayed power supply duration, and the core control unit detects that the interruption condition of the delayed power supply operation is that the vehicle's on-board battery voltage is lower than a preset voltage threshold, the alarm module is controlled to play an alarm sound, and a low voltage alarm message is displayed on the display module. Additionally, the delayed power supply operation is confirmed to have ended, and the camera in the electronic rearview mirror stops working and the display module turns off.

[0072] In one example, when the power supply duration of the delayed power supply operation, as statistically recorded by the core control unit, is within the first delayed power supply duration (i.e., when the camera and display module in the electronic rearview mirror are restarted), and the core control unit detects that the interruption condition of the delayed power supply operation is that the vehicle's on-board battery voltage is lower than a preset voltage threshold, the alarm module is controlled to play an alarm sound, and a low voltage alarm message is displayed on the display module. Additionally, the delayed power supply operation is confirmed to have ended, and the camera in the electronic rearview mirror stops working and the display module turns off.

[0073] In another example, the vehicle's radar senses the distance between the vehicle and objects in its surrounding environment in real time and sends the sensed distances to the core control unit. Simultaneously, the CAN detection unit monitors door opening information in real time and sends detected door opening signals to the core control unit. If the vehicle's radar detects that the vehicle is in a dangerous environment and a door is open, the core control unit controls the alarm module to play an alarm tone, displays a low voltage alarm message on the display module, confirms the end of the delayed power supply operation, and stops the camera in the electronic rearview mirror from working and turns off the display module.

[0074] In another example, the electronic rearview mirror's camera includes a main camera and a backup camera. If the main camera malfunctions, it switches to the backup camera to capture the rear or side view. If the electronic rearview mirror's camera malfunctions and switches modes, a message indicating a main camera failure will be displayed on the display module.

[0075] In this embodiment, by setting a preset voltage threshold and alarm tone, an alarm prompt is made for low vehicle battery voltage, thereby prompting the user in the vehicle to end the delayed power supply operation. This achieves alarms for multiple dimensions of status, and thus ensures that the power consumption during the delay period is controllable, avoiding the impact on vehicle startup.

[0076] In one embodiment, please refer to Figure 6 Please refer to Figure 12 In step S101, the delayed power supply operation includes, as well as: S601. When an abnormal fault is detected in the electronic rearview mirror, an abnormal handling operation corresponding to the abnormal fault is executed, and fault information corresponding to the abnormal fault is reported. The abnormal fault includes at least one of camera failure, display module failure, or power supply failure.

[0077] Abnormal malfunctions include, but are not limited to, camera failure, display module failure, or power supply failure. Fault information refers to all information related to abnormal malfunctions.

[0078] As an example, in step S601, the working status of the camera and display module in the electronic rearview mirror is monitored in real time, and the monitored working status is sent to the core control unit for detection and analysis. When an abnormal fault is detected in the electronic rearview mirror, the abnormal handling operation corresponding to the abnormal fault is executed, and the fault information corresponding to the abnormal fault is reported. The abnormal fault includes at least one of camera failure, display module failure, or power supply failure.

[0079] Specifically, after sending the operating status of the camera and display module to the core control unit, if the core control unit detects a camera failure, the abnormal handling operation can be to switch to a backup camera via a light-blocking switching mechanism, report the corresponding fault information, and continue the delayed power supply operation. If the core control unit detects a display module failure, the abnormal handling operation can be to display a fault message on the central control screen, display the view captured by the camera in the electronic rearview mirror on the central control screen, report the corresponding fault information, and continue the delayed power supply operation. If the core control unit detects a power supply failure in the electronic rearview mirror, the abnormal handling operation can be to switch the electronic rearview mirror to a traditional optical rearview mirror, report the corresponding fault information, and control the termination of the delayed power supply operation.

[0080] In one example, when the core control unit detects an abnormal fault as a display module failure, the abnormal handling operation can be to switch the electronic rearview mirror to a traditional optical rearview mirror, report the fault information corresponding to the abnormal fault, and control the delayed power supply operation to end.

[0081] In one example, when the core control unit detects that the abnormal fault is a camera failure and a display module failure, the abnormal handling operation can be to switch the electronic rearview mirror to a traditional optical rearview mirror, report the fault information corresponding to the abnormal fault, and control the delayed power supply operation to end.

[0082] In another example, when the core control unit detects an abnormal fault as a power supply failure in the electronic rearview mirror, the abnormal handling operation could be to switch the electronic rearview mirror to a traditional optical rearview mirror. If a preset risk event is detected, the alarm module could be controlled to play an alarm sound to remind the user to pay attention when getting out of the vehicle. Alternatively, the detection of preset risk events could be stopped.

[0083] In this embodiment, abnormal faults are handled and backup plans are switched through abnormal fault and abnormal handling operations, thereby avoiding the risk of loss of vision caused by a single system failure and improving the safety of users getting off the vehicle.

[0084] In one embodiment, please refer to Figure 7 Please refer to Figure 11 In step S101, after re-controlling the display module to remain on for the first power delay duration, the method further includes: S701. When it is determined that the vehicle is at night, activate the night vision enhancement function of the camera of the electronic rearview mirror and adjust the display module to night mode.

[0085] Among them, the night vision enhancement function refers to an assisted driving function that uses sensors and image processing to transform blurry scenes into clear scenes in low-visibility environments such as nighttime, rain, fog, and backlighting. Night mode refers to the operating state of the display module when the screen is on at night.

[0086] As an example, in step S701, the ambient light intensity is detected in real time by the vehicle's photosensor and sent to the core control unit. The core control unit compares the ambient light intensity with a preset intensity threshold. When the ambient light intensity is less than or equal to the preset intensity threshold, it is determined that the vehicle is at night, the night vision enhancement function of the electronic rearview mirror's camera is activated, and the display module is adjusted to night mode. The preset intensity threshold is a pre-set light intensity used to determine whether the vehicle is at night.

[0087] In one example, the CAN detection unit periodically detects the current time and sends the detected time to the core control unit. The core control unit then determines whether the current time has reached a preset time threshold. If the current time is detected to have reached the preset time threshold, it is determined that the vehicle is at night, and the night vision enhancement function of the electronic rearview mirror's camera is activated, and the display module is adjusted to night mode.

[0088] In one example, if a preset risk event is detected and the display module is kept on for a first delayed power supply period, or if the vehicle is detected to be at night for a second delayed power supply period, the night vision enhancement function of the electronic rearview mirror camera is activated and the display module is adjusted to night mode.

[0089] In this embodiment, the night vision enhancement function and night mode are used to cover complex risk scenarios, reduce the collision risk when the user gets out of the vehicle, and improve the safety of the user when getting out of the vehicle.

[0090] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0091] This invention also provides an electronic rearview mirror control device, comprising: The delayed power supply operation module is used to perform a delayed power supply operation on the vehicle's electronic rearview mirror after detecting an engine shutdown signal, so that the display module in the electronic rearview mirror remains lit. The power-on operation module is used to, after the delayed power-on operation ends and the display module turns off, if a preset risk event is detected, control the display module to keep the screen on for the first delayed power-on duration; the preset risk event includes at least one of the following events: the user inside the vehicle intends to get out of the vehicle, the user inside the vehicle touches the door handle inside the vehicle, or the vehicle radar detects that the vehicle is in a dangerous environment.

[0092] This invention also provides an electronic device 90, please refer to... Figure 9 It includes a memory 901 and a processor 902, wherein the memory 901 is used to store computer programs; and the processor 902 is used to execute the programs stored in the memory 901 to implement the electronic rearview mirror control method described in any embodiment of the present invention.

[0093] In one embodiment, the present invention provides a vehicle including the aforementioned electronic device 90.

[0094] This invention also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the electronic rearview mirror control method described in any embodiment.

[0095] In this application, "multiple" refers to two or more.

[0096] The terms “first,” “second,” “third,” “fourth,” etc., used in this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0097] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0098] Unless otherwise specified, all steps in this application may be performed sequentially or randomly. For example, if the method includes steps A and B, it means that the method may include steps A and B performed sequentially, or it may include steps B and A performed sequentially. For example, if the method may also include step C, it means that step C may be added to the method in any order. For example, the method may include steps A, B, and C, or it may include steps A, C, and B, or it may include steps C, A, and B, etc.

[0099] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for controlling an electronic rearview mirror, characterized in that, include: Upon detecting an engine shutdown signal, a delayed power supply operation is performed on the vehicle's electronic rearview mirror to keep the display module in the electronic rearview mirror lit. After the delayed power supply operation ends and the display module turns off, if a preset risk event is detected, the display module will be controlled to remain on for the first delayed power supply duration. The preset risk event includes at least one of the following events: the user inside the vehicle intends to get out of the vehicle, the user inside the vehicle touches the door handle inside the vehicle, or the vehicle radar detects that the vehicle is in a dangerous environment.

2. The electronic rearview mirror control method as described in claim 1, characterized in that, The delayed power supply operation includes: If the power supply duration of the delayed power supply operation does not reach the second delayed power supply duration, and if it is confirmed that the vehicle meets the interruption condition of the delayed power supply operation, then the delayed power supply operation is terminated and the display module is turned off; the interruption condition includes at least one of the following conditions: the user in the vehicle leaves the vehicle, the door is locked, there are no signs of life activity in the vehicle, or the vehicle's on-board battery voltage is lower than a preset voltage threshold.

3. The electronic rearview mirror control method as described in claim 2, characterized in that, The delayed power supply operation also includes: When the power supply duration of the delayed power supply operation reaches the second delayed power supply duration, the delayed power supply operation ends, and the display module turns off.

4. The electronic rearview mirror control method as described in claim 2 or 3, characterized in that, The delayed power supply operation also includes: When the power supply duration of the delayed power supply operation reaches a preset prompt time point, and the display module has not yet turned off, a countdown is displayed in a preset area of ​​the display module. The preset prompt time point includes the difference between the second delayed power supply duration and the preset interval duration.

5. The electronic rearview mirror control method as described in claim 2, characterized in that, If it is confirmed that the vehicle meets the interruption conditions of the delayed power supply operation, then the delayed power supply operation is terminated and the display module is turned off, including: If the vehicle meets the interruption condition of the delayed power supply operation when the vehicle's on-board battery voltage is lower than the preset voltage threshold, an alarm sound will be played, a low voltage alarm message will be displayed on the display module, the delayed power supply operation will end, and the display module will turn off.

6. The electronic rearview mirror control method as described in claim 1, characterized in that, The delayed power supply operation includes: When an abnormal malfunction is detected in the electronic rearview mirror, an abnormal handling operation corresponding to the abnormal malfunction is executed, and the fault information corresponding to the abnormal malfunction is reported. The abnormal malfunction includes at least one of camera failure, display module failure, or power supply failure.

7. The electronic rearview mirror control method as described in claim 1, characterized in that, After the step of re-controlling the display module to remain on for the first power delay duration, it further includes: When it is determined that the vehicle is at night, the night vision enhancement function of the camera of the electronic rearview mirror is activated, and the display module is adjusted to night mode.

8. The electronic rearview mirror control method as described in claim 1, characterized in that, The determination that the user inside the vehicle intends to get out of the vehicle involves image analysis of all images taken inside the vehicle to obtain the head and torso features of the user inside the vehicle, and the head and torso features match the preset getting-out features. The user inside the vehicle touches the door handle when the pressure signal collected by the pressure sensor in the door handle exceeds a preset pressure threshold. The vehicle-mounted radar detects that the vehicle is in a dangerous environment when the distance between the vehicle and an external object detected by the vehicle-mounted radar is less than a preset distance threshold.

9. An electronic device, characterized in that, Including processor and memory, among which, Memory, used to store computer programs; A processor is used to execute a program stored in a memory to implement the electronic rearview mirror control method according to any one of claims 1 to 8.

10. A vehicle, characterized in that, Including the electronic device as described in claim 9.

Images