Control method and device of vehicle-mounted display equipment and vehicle

Abstract

The embodiment of the invention provides a control method and device of vehicle-mounted display equipment and a vehicle, a containing cavity used for containing the vehicle-mounted display equipment is formed in the vehicle, a capacitance sensor is arranged in the containing cavity, and the method comprises the steps that in response to a received vehicle-mounted display equipment closing request, the capacitance sensor is arranged in the containing cavity; the vehicle-mounted display equipment is controlled to move in the direction close to the containing cavity; in the process that the vehicle-mounted display equipment moves in the direction close to the containing cavity, the current capacitance value collected by the capacitance sensor is obtained in real time; based on the current capacitance value, determining whether an obstacle exists on a motion path of the vehicle-mounted display equipment or not; if the obstacle exists on the motion path of the vehicle-mounted display equipment, the vehicle-mounted display equipment is controlled to stop moving or move in the direction away from the containing cavity. According to the technical scheme provided by the embodiment of the invention, the safety of the vehicle-mounted display equipment in the closing process can be improved, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and more specifically, to a control method and device for an on-vehicle display device and a vehicle. Background Art

[0002] Currently, more and more intelligent vehicles are integrated with on-board display devices, such as on-board ceiling-mounted TVs, which can more conveniently meet the entertainment needs of passengers. In actual use, when the user no longer uses the on-board ceiling-mounted TV and needs to turn it off, the on-board ceiling-mounted TV will be folded up and stored on the roof. However, there is currently a lack of safety protection measures in the process of folding the on-board ceiling-mounted TV, which makes it easy for foreign objects to be accidentally clamped, causing safety accidents, and thus reducing the user experience. Summary of the Invention

[0003] The embodiments of the present application provide a control method, device, and vehicle for an in-vehicle display device. The technical solution provided in the present application can improve the safety of the in-vehicle display device during the shutdown process and enhance the user experience.

[0004] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by practice of the present application.

[0005] According to a first aspect of an embodiment of the present application, a method for controlling a vehicle-mounted display device is provided, wherein a receiving cavity for accommodating the vehicle-mounted display device is provided in the vehicle, and a capacitive sensor is provided in the receiving cavity. The method comprises: in response to a received request to shut down the vehicle-mounted display device, controlling the vehicle-mounted display device to move toward the receiving cavity; in the process of the vehicle-mounted display device moving toward the receiving cavity, obtaining in real time a current capacitance value collected by the capacitive sensor; based on the current capacitance value, determining whether there is an obstacle on the movement path of the vehicle-mounted display device; if there is an obstacle on the movement path of the vehicle-mounted display device, controlling the vehicle-mounted display device to stop moving or move in a direction away from the receiving cavity.

[0006] In some embodiments of the present application, based on the aforementioned scheme, based on the current capacitance value, determining whether there is an obstacle on the movement path of the vehicle-mounted display device includes: obtaining a baseline capacitance value of the capacitance sensor; and determining whether there is an obstacle on the movement path of the vehicle-mounted display device based on the current capacitance value and the baseline capacitance value.

[0007] In some embodiments of the present application, based on the aforementioned scheme, one of the two opposite sides of the vehicle-mounted display device is rotatably connected to the receiving cavity, and based on the current capacitance value and the reference capacitance value, it is determined whether there is an obstacle on the movement path of the vehicle-mounted display device, including: obtaining the maximum sensing distance of a pre-calibrated capacitance sensor, and obtaining a first distance between the other side of the two opposite sides of the vehicle-mounted display device and the receiving cavity; multiplying the maximum sensing distance by the ratio between the reference capacitance value and the current capacitance value to obtain a second distance; if the difference between the first distance and the second distance is less than a first preset value, it is determined that there is an obstacle on the movement path of the vehicle-mounted display device.

[0008] In some embodiments of the present application, based on the aforementioned scheme, obtaining the first distance between the other side of the two opposite sides of the vehicle-mounted display device and the receiving cavity includes: obtaining the angle between the vehicle-mounted display device and the receiving cavity, and obtaining the third distance between the two opposite sides of the vehicle-mounted display device; calculating the product between the third distance and the sine value of the angle to obtain the first distance between the other side of the two opposite sides of the vehicle-mounted display device and the receiving cavity.

[0009] In some embodiments of the present application, based on the aforementioned scheme, based on the current capacitance value and the reference capacitance value, it is determined whether there is an obstacle on the movement path of the vehicle-mounted display device, including: calculating the difference between the current capacitance value and the reference capacitance value; if the difference is less than a second preset value, it is determined that there is an obstacle on the movement path of the vehicle-mounted display device.

[0010] In some embodiments of the present application, based on the aforementioned scheme, the method further includes: obtaining the ambient temperature of the environment in which the capacitive sensor is located; determining the capacitance attenuation rate of the capacitive sensor based on the ambient temperature; determining the remaining usage time of the capacitive sensor based on the capacitance attenuation rate; if the remaining usage time is less than the preset time, sending a prompt message to the user.

[0011] In some embodiments of the present application, based on the aforementioned solution, the capacitive sensor is completely disposed within the receiving cavity, and the capacitance attenuation rate of the capacitive sensor is determined based on the ambient temperature, including:

[0012] Get the cumulative usage time of the capacitive sensor;

[0013] The capacitance attenuation rate of the capacitance sensor is calculated according to the following formula:

[0014] ΔC=A×e (B×T) ×t

[0015] Wherein, ΔC represents the capacitance attenuation rate; A represents the first constant; B represents the second constant; T represents the ambient temperature; and t represents the accumulated usage time.

[0016] In some embodiments of the present application, based on the aforementioned solution, the vehicle-mounted display device is rotatably connected to the receiving cavity via a bendable member, the capacitive sensor is at least partially disposed on the bendable member, and the capacitance attenuation rate of the capacitive sensor is determined based on the ambient temperature, including:

[0017] Obtain the cumulative bending times of the capacitive sensor;

[0018] The capacitance attenuation rate of the capacitance sensor is calculated according to the following formula:

[0019] ΔC=D×T+E×F / 1000

[0020] Wherein, ΔC represents the capacitance attenuation rate; D represents the third constant; T represents the ambient temperature; E represents the fourth constant; and F represents the cumulative number of bends.

[0021] According to a second aspect of an embodiment of the present application, a control device for a vehicle-mounted display device is provided, wherein a receiving cavity for accommodating the vehicle-mounted display device is provided in the vehicle, and a capacitive sensor is provided in the receiving cavity. The device includes: a first control unit, for controlling the vehicle-mounted display device to move toward the receiving cavity in response to a received request to close the vehicle-mounted display device; an acquisition unit, for acquiring a current capacitance value collected by the capacitance sensor in real time during the process of the vehicle-mounted display device moving toward the receiving cavity; a determination unit, for determining whether there is an obstacle on the movement path of the vehicle-mounted display device based on the current capacitance value; and a second control unit, for controlling the vehicle-mounted display device to stop moving or move away from the receiving cavity if there is an obstacle on the movement path of the vehicle-mounted display device.

[0022] According to a third aspect of an embodiment of the present application, a vehicle is provided, comprising an on-board display device and a receiving cavity for receiving the on-board display device, wherein a capacitive sensor is provided in the receiving cavity, the vehicle further comprising one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement the operations performed by the method described in any one of the first aspects above.

[0023] The technical solution of the present application provides a control method for a vehicle-mounted display device. After receiving a request to close the vehicle-mounted display device, the vehicle-mounted display device is controlled to move in a direction close to a receiving cavity for receiving the vehicle-mounted display device. In addition, during the process of the vehicle-mounted display device moving in the direction close to the receiving cavity, the current capacitance value collected by the capacitance sensor is obtained in real time. Then, based on the current capacitance value, it is determined whether there is an obstacle on the movement path of the vehicle-mounted display device. Finally, if there is an obstacle on the movement path of the vehicle-mounted display device, the vehicle-mounted display device is controlled to stop moving or move in a direction away from the receiving cavity. It can be seen that in the technical solution provided by the present application, during the process of folding the vehicle-mounted display device when not in use, the capacitance value collected by the capacitance sensor is used to determine whether there is an obstacle on the movement path of the vehicle-mounted display device. When it is determined that there is an obstacle, the vehicle-mounted display device is controlled to stop folding to prevent accidental clamping of the obstacle, thereby avoiding safety accidents, improving the safety of the vehicle-mounted display device during the closing process, and enhancing the user experience of the vehicle-mounted display device.

[0024] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are incorporated into and constitute a part of the specification, illustrating embodiments consistent with the present application and, together with the specification, explaining the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0026] Figure 1 A schematic flow chart of a method for controlling a vehicle-mounted display device according to an embodiment of the present application is shown;

[0027] Figure 2 A detailed flow chart of determining whether there is an obstacle on the motion path of an in-vehicle display device based on the current capacitance value according to one embodiment of the present application is shown;

[0028] Figure 3 A detailed flow chart of determining whether there is an obstacle on the motion path of an in-vehicle display device based on a current capacitance value and a reference capacitance value according to one embodiment of the present application is shown;

[0029] Figure 4 A schematic diagram illustrating a scenario of a first distance between the other of two opposite sides of the in-vehicle display device and the receiving cavity according to an embodiment of the present application;

[0030] Figure 5A detailed flowchart of detecting the remaining usage time of a capacitive sensor according to one embodiment of the present application is shown;

[0031] Figure 6 A block diagram of a control device for an in-vehicle display device according to an embodiment of the present application is shown;

[0032] Figure 7 A schematic structural diagram of a vehicle according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0033] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0034] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps etc. can be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0035] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically separate entities. That is, these functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0036] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, while others may be combined or partially combined. Therefore, the actual execution order may vary depending on the actual situation.

[0037] It should be noted that the term "plurality" used in this document refers to two or more. "And / or" describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. The character " / " generally indicates an "or" relationship between the associated objects.

[0038] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described.

[0039] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0040] The following will describe some embodiments of the present application in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0041] It should be noted that the vehicle-mounted display devices provided in this application include but are not limited to passenger entertainment screens, rear entertainment screens (such as vehicle-mounted ceiling-mounted TVs), etc.

[0042] It should also be noted that the vehicle provided in the present application is provided with a receiving cavity for accommodating the vehicle-mounted display device, and a capacitive sensor is provided in the receiving cavity.

[0043] The structure of the receiving cavity is adapted to the vehicle-mounted display device so as to be able to accommodate the vehicle-mounted display device. The receiving cavity can be set on the top, side, seat back, etc. of the vehicle. Specifically, this application does not limit the installation location of the receiving cavity.

[0044] In this application, the connection method between the vehicle-mounted display device and the receiving cavity is not limited, for example:

[0045] In some embodiments, one of the two opposite sides of the vehicle-mounted display device is rotatably connected to the receiving cavity. For example, one side of the vehicle-mounted display device in the longitudinal direction is rotatably connected to the receiving cavity, so that the vehicle-mounted display device can be retracted into the receiving cavity by rotating about the side.

[0046] In other embodiments, the vehicle-mounted display device may also be connected to the receiving cavity in a lifting manner. For example, the vehicle-mounted display device is connected to the receiving cavity through a telescopic member, so that the user can use the vehicle-mounted display device when the telescopic member is in the extended state, and the vehicle-mounted display device can be stored in the receiving cavity when the telescopic member is in the retracted state.

[0047] In this application, the capacitive sensor can be a flexible capacitive sensor, a differential capacitive sensor, a digital output capacitive sensor, etc., preferably a flexible capacitive sensor. If the capacitive sensor is a flexible capacitive sensor, aluminum electrolytic capacitors, solid polymer capacitors, X7R ceramic capacitors, etc. can be selected, and the specific embodiment is not limited in this application.

[0048] In some embodiments, the capacitive sensor may be completely disposed within the receiving cavity, such that the capacitive sensor can sense obstacles in the space facing the side of the in-vehicle display device.

[0049] In other embodiments, the vehicle-mounted display device is rotatably connected to the receiving cavity via a bendable member, and the capacitive sensor can be partially disposed within the receiving cavity and at least partially disposed on the bendable member. It is understood that the vehicle-mounted display device can be retracted into the receiving cavity by bending the bendable member.

[0050] See also Figure 1 , shows a flow chart of a method for controlling a vehicle-mounted display device according to an embodiment of the present application, which specifically includes the following steps 110 to 140:

[0051] Step 110 : In response to the received request to turn off the in-vehicle display device, control the in-vehicle display device to move toward the receiving cavity.

[0052] In this embodiment, the in-vehicle display device shutdown request may be confirmed upon receiving a user's request to end use of the in-vehicle display device, or upon receiving a user's request to retract the in-vehicle display device. The user may initiate the in-vehicle display device shutdown request on the in-vehicle display device, the in-vehicle central control screen, or a mobile terminal.

[0053] It is understood that the purpose of controlling the vehicle-mounted display device to move toward the receiving cavity is to retract the vehicle-mounted display device so that it can be stored in its corresponding receiving cavity. For example, with respect to a vehicle-mounted ceiling-mounted TV, when the user needs to use the vehicle-mounted ceiling-mounted TV, the vehicle-mounted ceiling-mounted TV will be unfolded downward from the receiving cavity on the roof, thereby facilitating the user's viewing. When the user no longer needs to use the vehicle-mounted ceiling-mounted TV, the vehicle-mounted ceiling-mounted TV will be retracted upward into the receiving cavity on the roof, thereby saving space in the vehicle.

[0054] Continue to see Figure 1 In step 120 , while the vehicle-mounted display device is moving toward the receiving cavity, a current capacitance value collected by the capacitance sensor is obtained in real time.

[0055] It's important to note that the capacitive sensor's sensing area covers the motion path of the in-vehicle display device. Therefore, if obstacles such as fingers, metal, plastic, or paper are in the in-vehicle display device's motion path, they may affect the sensor's dielectric constant, the distance between the plates, and the effective distance, causing the capacitance of the sensor's electrodes to change. For example, when a non-conductive obstacle like a finger approaches the sensor, it partially displaces air, increasing the sensor's dielectric constant and significantly increasing the capacitance of the sensor's electrodes. Consequently, the capacitance value captured by the sensor will change.

[0056] Continue to see Figure 1 , step 130, based on the current capacitance value, determine whether there is an obstacle on the movement path of the vehicle-mounted display device.

[0057] In this embodiment, specific implementation methods for implementing step 130 include at least the following three:

[0058] In a first implementation, the current capacitance value collected by the capacitance sensor is compared with the capacitance value collected by the capacitance sensor at the previous moment. If the difference between the current capacitance value and the capacitance value collected by the capacitance sensor at the previous moment is greater than a certain value, it is determined that there is an obstacle in the movement path of the vehicle-mounted display device.

[0059] It is understandable that when an obstacle approaches the capacitive sensor, the capacitance value of the capacitive sensor's own electrode will change significantly. Therefore, by comparing it with the capacitance value collected at the previous moment, it can be determined whether an obstacle has intruded into the movement path of the vehicle-mounted display device.

[0060] In a second embodiment, a current capacitance value collected by the capacitive sensor is compared with a capacitance value collected by the capacitive sensor at an initial moment. If the difference between the current capacitance value and the capacitance value collected by the capacitive sensor at the initial moment is greater than a certain value, it is determined that an obstacle exists in the movement path of the in-vehicle display device. The initial moment may be the moment when the in-vehicle display device starts to move toward the receiving cavity.

[0061] A third embodiment can be implemented as follows Figure 2 The steps shown are performed:

[0062] See also Figure 2 , shows a detailed flow chart of determining whether there is an obstacle on the motion path of the in-vehicle display device based on the current capacitance value according to one embodiment of the present application, specifically including the following steps 131 to 132:

[0063] Step 131: Acquire a reference capacitance value of the capacitance sensor.

[0064] In some embodiments, the capacitance value of the capacitive sensor in air for a period of time can be collected in advance and the collected capacitance values ​​can be averaged to obtain the reference capacitance value. In addition, to improve the accuracy of the capacitive sensor, the reference capacitance value can also be calibrated regularly.

[0065] In other embodiments, the capacitance value acquired by the capacitance sensor at the start of the movement of the in-vehicle display device toward the receiving cavity may be used as the reference capacitance value.

[0066] Continue to see Figure 2 , step 132, based on the current capacitance value and the reference capacitance value, determine whether there is an obstacle on the movement path of the vehicle-mounted display device.

[0067] In this embodiment, at least the following two specific implementations are included:

[0068] In a first embodiment, the difference between the current capacitance value and the reference capacitance value is calculated. If the difference is less than a second preset value, it is determined that an obstacle exists in the movement path of the vehicle-mounted display device. The second preset value can be set to a value such as 2 cm, 3 cm, or 4 cm, and the specific value is not limited in this application.

[0069] It is understandable that when the difference is less than the second preset value, it indicates that the obstacle is very close to the capacitive sensor and there is a danger. It can be determined that there is an obstacle on the movement path of the vehicle-mounted display device.

[0070] The second implementation method can be as follows Figure 3 The steps shown are performed:

[0071] In this embodiment, one of two opposing sides of the vehicle-mounted display device is rotatably connected to the receiving cavity. For example, one of two opposing sides of the vehicle-mounted display device in the longitudinal direction is rotatably connected to the receiving cavity. Specifically, assuming the vehicle-mounted display device is rectangular, the side of the vehicle-mounted display device corresponding to the length of the rectangular shape may be rotatably connected to the receiving cavity.

[0072] See also Figure 3 , shows a detailed flow chart of determining whether there is an obstacle on the motion path of the in-vehicle display device based on the current capacitance value and the reference capacitance value according to one embodiment of the present application, specifically including the following steps 1321 to 1323:

[0073] Step 1321 , obtaining a pre-calibrated maximum sensing distance of the capacitive sensor, and obtaining a first distance between the other side of the two opposite sides of the vehicle-mounted display device and the receiving cavity.

[0074] In some embodiments, the maximum sensing distance of the capacitive sensor is less than or equal to a third distance between two opposing sides of the vehicle-mounted display device. For example, assuming that one long side of a rectangular vehicle-mounted display device is rotatably connected to the receiving cavity, the third distance between the two opposing sides described herein is the width of the rectangular vehicle-mounted display device.

[0075] It is understandable that the maximum sensing distance of the capacitive sensor can cover the movement path of the vehicle-mounted display device, so that obstacles on the movement path can change the capacitance value of the capacitive sensor.

[0076] In some embodiments, a distance measuring sensor may be provided in the vehicle-mounted display device and / or the receiving cavity, so as to measure a first distance between the receiving cavity and the other of the two opposite sides of the vehicle-mounted display device.

[0077] In other implementations, the following steps 13211 to 13212 may be performed:

[0078] Step 13211: Obtain an angle between the vehicle-mounted display device and the receiving cavity, and obtain a third distance between two opposite sides of the vehicle-mounted display device.

[0079] Step 13212: Calculate the product of the third distance and the sine value of the angle to obtain a first distance between the other side of the two opposite sides of the vehicle-mounted display device and the receiving cavity.

[0080] The following combination Figure 4 This embodiment is described.

[0081] See also Figure 4 , showing a schematic diagram of a first distance between the other side of the opposite sides of the vehicle-mounted display device and the receiving cavity according to an embodiment of the present application

[0082] The following explanation is given using a vehicle-mounted ceiling-mounted TV as an example of the vehicle-mounted display device.

[0083] exist Figure 4 In the invention, a receiving cavity for the vehicle-mounted ceiling-mounted TV is provided on the top of the vehicle, and a capacitive sensor is provided in the receiving cavity. The capacitive sensor can sense obstacles on the moving path of the vehicle-mounted ceiling-mounted TV.

[0084] exist Figure 4 In the figure, the angle α is the angle between the car-mounted ceiling-mounted TV and the receiving cavity. It can be understood that in the process of the car-mounted ceiling-mounted TV moving toward the receiving cavity, the angle α between the car-mounted ceiling-mounted TV and the receiving cavity gradually becomes smaller. When the car-mounted ceiling-mounted TV is completely received in the receiving cavity, the angle α is 0.

[0085] exist Figure 4, L3 is represented by the distance between the two opposite sides of the car ceiling TV.

[0086] from Figure 4 It can be seen that L3 multiplied by the sine value of the angle α gives the first distance L1 , which is the distance from the other of the two opposite sides of the vehicle-mounted ceiling-mounted TV to the receiving cavity.

[0087] Continue to see Figure 3 In step 1322 , the maximum sensing distance is multiplied by the ratio between the reference capacitance value and the current capacitance value to obtain a second distance.

[0088] In some embodiments, the second distance is represented as a distance from the obstacle to the capacitive sensor.

[0089] exist Figure 4 In the figure, L2 represents the second distance, which is the distance from the obstacle to the capacitive sensor.

[0090] Continue to see Figure 3 , step 1323, if the difference between the first distance and the second distance is less than the first preset value, it is determined that there is an obstacle on the movement path of the vehicle-mounted display device.

[0091] Combine Figure 4 It can be understood that the difference between the first distance and the second distance is expressed as the distance from the other side of the opposite sides of the car-mounted ceiling TV to the target plane where the obstacle is located, and the target plane is a plane parallel to the receiving cavity.

[0092] In some embodiments, the first preset value can be set to 2 cm, 2.1 cm, 2.2 cm, 2.3 cm, etc., and the specific embodiment is not limited in this application.

[0093] Continue to see Figure 1 In step 140 , if there is an obstacle on the movement path of the vehicle-mounted display device, the vehicle-mounted display device is controlled to stop moving or move in a direction away from the receiving cavity.

[0094] In this application, the following step 150 may also be performed:

[0095] Step 150, start timing after controlling the vehicle-mounted display device to move in a direction away from the receiving cavity. When the timing reaches the set time, control the vehicle-mounted display device to stop moving. The set time can be set to 1s, 2s, 3s, etc., and the specific application does not limit it here.

[0096] It is understandable that controlling the vehicle-mounted display device to move in a direction away from the receiving cavity can avoid being clamped by obstacles, or even if an obstacle is touched, the obstacle can be released immediately.

[0097] In some embodiments, the speed at which the vehicle-mounted display device moves toward the receiving cavity can be set to a first speed, and the speed at which the vehicle-mounted display device moves away from the receiving cavity can be set to a second speed, where the second speed is less than or equal to the first speed. Alternatively, the second speed can be set to the minimum speed of the vehicle-mounted display device, thereby minimizing accidents.

[0098] In this application, the following step 160 may also be performed:

[0099] When an obstacle is determined to be in the motion path of the vehicle-mounted display device, a target prompt message is sent to the user. This target prompt message can prompt the user to avoid the danger in time. For example, a UI prompt can be provided on the central control screen, or an audio and visual prompt can be provided. The specific details are not limited in this application.

[0100] In some embodiments, an anti-pinch controller may be provided in the vehicle, and the anti-pinch controller is used to execute the control method of the vehicle-mounted display device provided in this application, and can execute the above steps 110 to 160 provided in this application.

[0101] In other embodiments, an on-board display device controller and an anti-pinch controller, as well as a cockpit controller, may be provided in the vehicle, and the on-board display device controller and the anti-pinch controller may be connected by a hard line or by wireless communication. The on-board display device controller and the cockpit controller may be connected by a hard line or by wireless communication. Wherein, the on-board display device controller is used to perform step 110 provided in this application, and after receiving the on-board display device shutdown request, sends a wake-up instruction to the anti-pinch controller, thereby waking up the anti-pinch controller, and the anti-pinch controller is connected to the capacitive sensor, so that the awakened anti-pinch controller can wake up the capacitive sensor. The anti-pinch controller is used to perform the above steps 120 and 130, and after the anti-pinch controller determines that there is an obstacle on the motion path of the on-board display device, it sends an anti-pinch signal to the on-board display device controller, and then the on-board display device controller performs the above steps 140 and 150. And when it is determined that there is an obstacle on the motion path of the on-board display device, the on-board display device controller may send a prompt message to the cockpit controller, and then the cockpit controller may perform the above step 160.

[0102] In the present application, the vehicle-mounted display device controller can also send a reception position signal to the anti-pinch controller after determining that the vehicle-mounted display device is completely accommodated in the reception cavity, that is, after the vehicle-mounted display device is completely retracted, and then the anti-pinch controller can directly control itself and the capacitive sensor to enter a sleep state. The anti-pinch controller can also start timing after receiving the reception position signal, and when the timing reaches another set time, control itself and the capacitive sensor to enter a sleep state, where the other set time can be set to 30s, and 40s can also be set to other time lengths.

[0103] It is understandable that after the vehicle-mounted display device is housed in place, controlling the anti-pinch controller and the capacitive sensor to enter a dormant state can reduce the energy consumption of the anti-pinch controller and the capacitive sensor.

[0104] It should be noted that the capacitance of the capacitive sensor will continue to decay due to environmental factors such as high temperature and aging of its own materials. The capacitance decay of the capacitive sensor will affect the service life of the capacitive sensor. It is understandable that if the service life of the capacitive sensor is lower than a certain value and the capacitive sensor is not maintained in time, the subsequent capacitive sensor will not be able to collect the capacitance value, and thus it will be impossible to determine whether there are obstacles in the movement path of the vehicle-mounted display device, and thus it will be impossible to provide safety protection for the shutdown process of the vehicle-mounted display device. Therefore, the present application also provides a method for detecting the remaining usage time of the capacitive sensor, which can promptly remind the user to maintain the capacitive sensor, thereby further improving the safety of the vehicle-mounted display device during the shutdown process.

[0105] In some embodiments of the present application, the following can also be performed: Figure 5 Steps shown.

[0106] See also Figure 5 , shows a detailed flow chart of detecting the remaining usage time of a capacitive sensor according to an embodiment of the present application, specifically including the following steps 510 to 540:

[0107] Step 510: Acquire the ambient temperature of the environment where the capacitive sensor is located.

[0108] In some embodiments, step 510 can be performed after waking up the capacitive sensor, that is, while controlling the vehicle-mounted display device to move toward the receiving cavity, the remaining usage time of the capacitive sensor is detected, thereby reducing energy consumption compared to waking up the capacitive sensor alone to detect its remaining usage time.

[0109] Continue to see Figure 5 , step 520, determining a capacitance decay rate of the capacitive sensor based on the ambient temperature.

[0110] In this embodiment, at least the following two implementation modes are included.

[0111] In a first embodiment, the capacitive sensor is completely disposed within the receiving cavity. The capacitance attenuation rate of the capacitive sensor can be obtained by executing steps 521A to 522A.

[0112] Step 521A: Obtain the accumulated usage time of the capacitive sensor.

[0113] In step 522A, the capacitance attenuation rate of the capacitance sensor is calculated according to the following formula (1):

[0114] ΔC=A×e (B×T) ×t formula (1)

[0116] Wherein, ΔC represents the capacitance attenuation rate; A represents the first constant; B represents the second constant; T represents the ambient temperature; and t represents the accumulated usage time.

[0117] It should be noted that the cumulative usage time of the capacitive sensor is the time between the time when the capacitive sensor starts to be used and the current detection time.

[0118] In this embodiment, the unit of capacitance attenuation rate is %, the unit of ambient temperature is ℃, and the unit of cumulative usage time is year. A and B are both constants related to the material properties of the capacitance sensor, with A in % / year and B in ℃. -1 Among them, the two constants A and B can be obtained through preliminary aging tests.

[0119] For example, for different types of capacitive sensors, the values ​​of A and B can be determined according to Table 1 below.

[0120] Capacitive sensor type First constant (A, % / year) Second constant (B, ℃-1) aluminum electrolytic capacitors 2-5 -0.08 Solid polymer capacitors 0.5-1.5 -0.05 X7R ceramic capacitors <0.1 -0.02

[0121] Table 1

[0122] In a second embodiment, the vehicle-mounted display device is rotatably connected to the receiving cavity via a bendable member, and the capacitance attenuation rate of the capacitance sensor can be obtained by executing the following steps 521B to 522B.

[0123] Step 521B: Obtain the cumulative bending times of the capacitive sensor.

[0124] In step 522B, the capacitance attenuation rate of the capacitance sensor is calculated according to the following formula (2):

[0125] ΔC=D×T+E×F / 1000 Formula (2)

[0126] Wherein, ΔC represents the capacitance attenuation rate; D represents the third constant; T represents the ambient temperature; E represents the fourth constant; and F represents the cumulative number of bends.

[0127] The unit of capacitance attenuation rate is %, the unit of ambient temperature is °C, and D and E are constants related to the material properties of the capacitance sensor, which can be obtained in advance through testing and calibration.

[0128] In some embodiments, the third constant D ranges from 0.1 to 0.4, preferably 0.15.

[0129] In some embodiments, the fourth constant F ranges from 0.01 to 0.05, preferably 0.03.

[0130] In this embodiment, it is understood that the capacitive sensor is partially disposed on the bendable member. Each time the vehicle-mounted display device is retracted, the capacitive sensor is bent, which can affect the service life of the capacitive sensor. Therefore, the cumulative number of times the capacitive sensor has been bent can be the cumulative number of times the vehicle-mounted display device has been retracted.

[0131] Continue to see Figure 5 , step 530, determining the remaining usage time of the capacitive sensor based on the capacitance decay rate.

[0132] In some implementations, steps 531 to 532 may be performed as follows:

[0133] Step 531 : Obtain a preset failure capacitance value of the capacitive sensor and an initial capacitance value of the capacitive sensor. For example, the failure capacitance value may be set to 70% or 80% of the initial capacitance value.

[0134] In step 532, the remaining usage time of the capacitive sensor is calculated according to the following formula (3):

[0135] t1=(C-0.7C0) / (ΔC×C0) Formula (3)

[0136] Wherein, t1 represents the remaining usage time of the capacitive sensor; C represents the reference capacitance value of the capacitive sensor; 0.7C0 represents the failure capacitance value of the capacitive sensor; and C0 represents the initial capacitance value of the capacitive sensor.

[0137] Continue to see Figure 5 , step 540, if the remaining usage time is less than the preset time, a prompt message is sent to the user.

[0138] In this embodiment, the preset duration can be set to 1 year, 2 years, 3 years, etc., and the specific application is not limited here. It is preferably set to 2 years.

[0139] In this embodiment, the prompt information sent to the user can prompt the user to perform maintenance on the capacitive sensor.

[0140] In the technical solutions provided by some embodiments of the present application, in the control method of the vehicle-mounted display device provided, after receiving the vehicle-mounted display device closing request, the vehicle-mounted display device will be controlled to move in the direction close to the receiving cavity for receiving the vehicle-mounted display device, and in the process of the vehicle-mounted display device moving in the direction close to the receiving cavity, the current capacitance value collected by the capacitive sensor will be obtained in real time; then based on the current capacitance value, it is determined whether there is an obstacle on the movement path of the vehicle-mounted display device; finally, if there is an obstacle on the movement path of the vehicle-mounted display device, the vehicle-mounted display device is controlled to stop moving or move in the direction away from the receiving cavity. It can be seen that in the technical solutions provided by the present application, when the vehicle-mounted display device is not used and the vehicle-mounted display device is folded up, the capacitance value collected by the capacitive sensor will be used in real time to determine whether there is an obstacle on the movement path of the vehicle-mounted display device, and when it is determined that there is an obstacle, the vehicle-mounted display device will be controlled to stop further folding to prevent accidental clamping of the obstacle, thereby avoiding safety accidents, improving the safety of the vehicle-mounted display device during the closing process, and enhancing the user experience of the vehicle-mounted display device.

[0141] Based on the same inventive concept, embodiments of the present invention provide a control device for an in-vehicle display device. A housing for accommodating the in-vehicle display device is provided within the vehicle, and a capacitive sensor is disposed within the housing. The control device can be used to execute the in-vehicle display device control method described in the aforementioned embodiments of this application. For details not disclosed in the embodiments of this application, please refer to the aforementioned embodiments of the in-vehicle display device control method of this application.

[0142] See also Figure 6 , shows a block diagram of a control device for a vehicle-mounted display device according to an embodiment of the present application.

[0143] like Figure 6 As shown, a control device 600 for an in-vehicle display apparatus according to an embodiment of the present application includes: a first control unit 610 , an acquisition unit 620 , a determination unit 630 , and a second control unit 640 .

[0144] Among them, the first control unit 610 is used to control the vehicle-mounted display device to move toward the receiving cavity in response to the received vehicle-mounted display device shutdown request; the acquisition unit 620 is used to obtain the current capacitance value collected by the capacitance sensor in real time during the process of the vehicle-mounted display device moving toward the receiving cavity; the determination unit 630 is used to determine whether there is an obstacle on the movement path of the vehicle-mounted display device based on the current capacitance value; the second control unit 640 is used to control the vehicle-mounted display device to stop moving or move away from the receiving cavity if there is an obstacle on the movement path of the vehicle-mounted display device.

[0145] In some embodiments of the present application, based on the aforementioned scheme, the determination unit 630 is further used to: obtain a pre-calibrated reference capacitance value of the capacitance sensor; and determine whether there is an obstacle on the movement path of the vehicle-mounted display device based on the current capacitance value and the reference capacitance value.

[0146] In some embodiments of the present application, based on the aforementioned scheme, one of the two opposite sides of the vehicle-mounted display device is rotatably connected to the receiving cavity, and the determination unit 630 is also used to: obtain the maximum sensing distance of the pre-calibrated capacitive sensor, and obtain the first distance between the other side of the two opposite sides of the vehicle-mounted display device and the receiving cavity; multiply the maximum sensing distance by the ratio between the reference capacitance value and the current capacitance value to obtain the second distance; if the difference between the first distance and the second distance is less than the first preset value, it is determined that there is an obstacle on the movement path of the vehicle-mounted display device.

[0147] In some embodiments of the present application, based on the aforementioned scheme, the determination unit 630 is also used to: obtain the angle between the vehicle-mounted display device and the receiving cavity, and obtain the third distance between the two opposite sides of the vehicle-mounted display device; calculate the product between the third distance and the sine value of the angle to obtain the first distance between the other side of the two opposite sides of the vehicle-mounted display device and the receiving cavity.

[0148] In some embodiments of the present application, based on the aforementioned scheme, the determination unit 630 is further used to: calculate the difference between the current capacitance value and the reference capacitance value; if the difference is less than a second preset value, determine that there is an obstacle on the movement path of the vehicle-mounted display device.

[0149] In some embodiments of the present application, based on the aforementioned scheme, the acquisition unit 620 is further used to: obtain the ambient temperature of the environment in which the capacitive sensor is located; determine the capacitance decay rate of the capacitive sensor based on the ambient temperature; determine the remaining usage time of the capacitive sensor based on the capacitance decay rate; if the remaining usage time is less than the preset time, send a prompt message to the user.

[0150] In some embodiments of the present application, based on the aforementioned solution, the capacitive sensor is completely disposed within the receiving cavity, and the acquiring unit 620 is further configured to: acquire the accumulated usage time of the capacitive sensor;

[0151] The capacitance attenuation rate of the capacitance sensor is calculated according to the following formula:

[0152] ΔC=A×e (B×T) ×t

[0153] Wherein, ΔC represents the capacitance attenuation rate; A represents the first constant; B represents the second constant; T represents the ambient temperature; and t represents the accumulated usage time.

[0154] In some embodiments of the present application, based on the aforementioned solution, the vehicle-mounted display device is rotatably connected to the receiving cavity via a bendable member, and the acquisition unit 620 is further configured to: acquire the cumulative number of bends of the capacitive sensor;

[0155] The capacitance attenuation rate of the capacitance sensor is calculated according to the following formula:

[0156] ΔC=D×T+E×F / 1000

[0157] Wherein, ΔC represents the capacitance attenuation rate; D represents the third constant; T represents the ambient temperature; E represents the fourth constant; and F represents the cumulative number of bends.

[0158] Based on the same inventive concept, an embodiment of the present application also provides a vehicle.

[0159] See also Figure 7 , shows a structural schematic diagram of a vehicle according to an embodiment of the present application, wherein the vehicle includes an on-board display device and a receiving cavity for receiving the on-board display device, wherein a capacitive sensor is provided in the receiving cavity, and the vehicle further includes one or more memories 704, one or more processors 702, and at least one computer program (computer program instruction) stored in the memory 704 and executable on the processor 702, and when the processor 702 executes the computer program, the method described above is implemented.

[0160] Among them, Figure 7In the embodiment of the present invention, a bus architecture (represented by bus 700) is shown. Bus 700 may include any number of interconnected buses and bridges, and bus 700 links various circuits including one or more processors represented by processor 702 and memory represented by memory 704. Bus 700 may also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 705 provides an interface between bus 700 and receiver 701 and transmitter 703. Receiver 701 and transmitter 703 may be the same component, namely a transceiver, which provides a unit for communicating with various other devices over a transmission medium. Processor 702 is responsible for managing bus 700 and general processing, while memory 704 may be used to store data used by processor 702 when performing operations.

[0161] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of this application and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwiring, or a combination of any of these. Furthermore, the functional units may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit.

[0162] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0163] The units described as separate components may or may not be physically separate, and the components of the control device may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0164] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc. Various media that can store computer program instructions.

[0165] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of the claims of the present application.

Claims

1. A method for controlling a vehicle-mounted display device, characterized in that: A receiving cavity for accommodating an on-board display device is provided in the vehicle, and a capacitive sensor is provided in the receiving cavity. The method includes: In response to a received request to close the vehicle-mounted display device, controlling the vehicle-mounted display device to move toward the receiving cavity; When the vehicle-mounted display device moves toward the receiving cavity, a current capacitance value collected by the capacitance sensor is acquired in real time; determining, based on the current capacitance value, whether there is an obstacle on a movement path of the in-vehicle display device; If there is an obstacle on the movement path of the vehicle-mounted display device, the vehicle-mounted display device is controlled to stop moving or move in a direction away from the receiving cavity.

2. The method according to claim 1, characterized in that The determining, based on the current capacitance value, whether there is an obstacle on the movement path of the in-vehicle display device includes: Obtaining a reference capacitance value of the capacitive sensor; Based on the current capacitance value and the reference capacitance value, it is determined whether there is an obstacle on the movement path of the in-vehicle display device.

3. The method according to claim 2, characterized in that One of two opposite sides of the vehicle-mounted display device is rotatably connected to the receiving cavity, and determining whether there is an obstacle on a movement path of the vehicle-mounted display device based on the current capacitance value and the reference capacitance value includes: Obtaining a pre-calibrated maximum sensing distance of the capacitive sensor, and obtaining a first distance between the other of the two opposite sides of the vehicle-mounted display device and the receiving cavity; Multiplying the maximum sensing distance by the ratio between the reference capacitance value and the current capacitance value to obtain a second distance; If the difference between the first distance and the second distance is less than a first preset value, it is determined that there is an obstacle on the movement path of the in-vehicle display device.

4. The method according to claim 3, characterized in that The obtaining of a first distance between the other side of the two opposite sides of the vehicle-mounted display device and the receiving cavity includes: Obtaining an angle between the vehicle-mounted display device and the receiving cavity, and obtaining a third distance between two opposite sides of the vehicle-mounted display device; The product of the third distance and the sine value of the angle is calculated to obtain a first distance between the other side of the two opposite sides of the vehicle-mounted display device and the receiving cavity.

5. The method according to claim 2, characterized in that The determining, based on the current capacitance value and the reference capacitance value, whether there is an obstacle on the movement path of the in-vehicle display device includes: Calculating a difference between the current capacitance value and the reference capacitance value; If the difference is smaller than a second preset value, it is determined that there is an obstacle on the moving path of the in-vehicle display device.

6. The method according to claim 1, characterized in that The method further comprises: Obtaining the ambient temperature of the environment in which the capacitive sensor is located; determining a capacitance decay rate of the capacitive sensor based on the ambient temperature; determining a remaining usage time of the capacitive sensor based on the capacitance decay rate; If the remaining usage time is less than the preset time, a prompt message is sent to the user.

7. The method according to claim 6, characterized in that The capacitive sensor is completely disposed in the receiving cavity, and determining the capacitance attenuation rate of the capacitive sensor based on the ambient temperature includes: Obtaining the cumulative usage time of the capacitive sensor; The capacitance attenuation rate of the capacitive sensor is calculated according to the following formula: ΔC=A×e (B×T) ×t Wherein, ΔC represents the capacitance attenuation rate; A represents the first constant; B represents the second constant; T represents the ambient temperature; and t represents the accumulated usage time.

8. The method according to claim 6, characterized in that The vehicle-mounted display device is rotatably connected to the receiving cavity via a bendable member, the capacitive sensor is at least partially disposed on the bendable member, and determining a capacitance attenuation rate of the capacitive sensor based on the ambient temperature includes: Obtaining the cumulative number of bends of the capacitive sensor; The capacitance attenuation rate of the capacitive sensor is calculated according to the following formula: ΔC=D×T+E×F / 1000 Wherein, ΔC represents the capacitance attenuation rate; D represents the third constant; T represents the ambient temperature; E represents the fourth constant; and F represents the cumulative number of bending times.

9. A control device for an in-vehicle display device, characterized in that: A receiving cavity for accommodating an on-board display device is provided in the vehicle, and a capacitive sensor is provided in the receiving cavity. The device includes: a first control unit, configured to control the vehicle-mounted display device to move toward the receiving cavity in response to a received request to turn off the vehicle-mounted display device; An acquiring unit, configured to acquire, in real time, a current capacitance value collected by the capacitive sensor during the movement of the vehicle-mounted display device toward the receiving cavity; a determining unit, configured to determine whether there is an obstacle on a movement path of the in-vehicle display device based on the current capacitance value; The second control unit is configured to control the vehicle-mounted display device to stop moving or move in a direction away from the receiving cavity if there is an obstacle on the moving path of the vehicle-mounted display device.

10. A vehicle, characterized in that: The vehicle comprises an on-board display device and a receiving cavity for receiving the on-board display device, wherein a capacitive sensor is provided in the receiving cavity. The vehicle further comprises one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement the method according to any one of claims 1 to 8.

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