License plate cleaning system, method and equipment, storage medium, product and vehicle

Abstract

The invention discloses a license plate cleaning system, method and equipment, a storage medium, a product and a vehicle, and belongs to the technical field of vehicles. According to the license plate cleaning system, the light intensity sensor detects the light intensity signal on the surface of the license plate and sends the light intensity signal to the signal processing device, and the signal processing device determines whether the license plate needs to be cleaned or not based on the light intensity signal and sends the cleaning signal to the controller when it is determined that the license plate needs to be cleaned. The controller controls the license plate cleaner to clean the license plate based on the cleaning signal. Therefore, according to the system, through interaction among the light intensity sensor, the signal processing equipment, the controller and the license plate cleaner, automatic license plate cleaning can be achieved, manual cleaning is not needed, time and labor are saved, and therefore the cleaning efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a license plate cleaning system, method, device, storage medium, product and vehicle. Background Art

[0002] As a part of the vehicle, the license plate will inevitably be contaminated with dust, dirt and other impurities during long-term use or storage. If the license plate is not cleaned for a long time, it will be blocked. At present, when the license plate is blocked, the user manually wipes the license plate. However, this method of cleaning the license plate requires the user to do it manually, which is time-consuming and labor-intensive, resulting in low cleaning efficiency. Summary of the invention

[0003] The embodiments of the present application provide a license plate cleaning system, method, device, storage medium, product and vehicle, which can improve the efficiency of license plate cleaning. The technical solution is as follows:

[0004] In one aspect, a license plate cleaning system is provided, the system comprising: a light intensity sensor, a signal processing device, a controller and a license plate cleaner electrically connected in sequence;

[0005] The light intensity sensor is used to detect a first light intensity signal on the surface of the license plate and send the first light intensity signal to the signal processing device;

[0006] The signal processing device is used to send a first cleaning signal to the controller when it is determined that the license plate needs to be cleaned based on the first light intensity signal;

[0007] The controller is used to control the license plate washer to clean the license plate based on the first cleaning signal.

[0008] In a possible implementation, the signal processing device includes: a signal processor and a voltage comparator;

[0009] The signal processor is electrically connected to the light intensity sensor and the voltage comparator respectively, and the voltage comparator is also electrically connected to the controller;

[0010] The signal processor is used to convert the first light intensity signal into a first voltage signal, and send the first voltage signal to the voltage comparator;

[0011] The voltage comparator is used to compare the first voltage signal with a preset voltage signal; if it is determined that the license plate needs to be cleaned based on the comparison result, the first cleaning signal is sent to the controller.

[0012] In another possible implementation, the system further includes: an early warning device;

[0013] The early warning device is electrically connected to the controller;

[0014] The controller is further used to control the early warning device to issue an early warning based on the first cleaning signal.

[0015] In another possible implementation, the controller is used to determine the obstruction condition of the license plate based on the first cleaning signal;

[0016] Determining a target cleaning level based on the occlusion of the license plate;

[0017] Based on the target cleaning level, the license plate washer is controlled to clean the license plate.

[0018] In another possible implementation, the controller is further configured to receive a detection instruction, and send a detection signal to the light intensity sensor based on the detection instruction;

[0019] The light intensity sensor is used to detect a first light intensity signal on the surface of the license plate when receiving the detection signal.

[0020] On the other hand, a license plate cleaning method is provided, the method comprising:

[0021] The light intensity sensor detects a first light intensity signal on the surface of the license plate and sends the first light intensity signal to the signal processing device;

[0022] The signal processing device sends a first cleaning signal to the controller when it is determined that the license plate needs to be cleaned based on the first light intensity signal;

[0023] The controller controls a license plate washer to clean the license plate based on the first cleaning signal.

[0024] In a possible implementation, the signal processing device includes: a signal processor and a voltage comparator;

[0025] The signal processing device sends a first cleaning signal to the controller when determining that the license plate needs to be cleaned based on the first light intensity signal, including:

[0026] The signal processor converts the first light intensity signal into a first voltage signal, and sends the first voltage signal to the voltage comparator;

[0027] The voltage comparator compares the first voltage signal with a preset voltage signal; if it is determined based on the comparison result that the license plate needs to be cleaned, the first cleaning signal is sent to the controller.

[0028] In another possible implementation, the method further includes:

[0029] The controller controls the early warning device to issue an early warning based on the first cleaning signal.

[0030] In another possible implementation, the controller controls a license plate washer to clean the license plate based on the first cleaning signal, including:

[0031] The controller determines the blocking condition of the license plate based on the first cleaning signal;

[0032] Determining a target cleaning level based on the occlusion of the license plate;

[0033] Based on the target cleaning level, the license plate washer is controlled to clean the license plate.

[0034] In another possible implementation, the light intensity sensor detects a first light intensity signal on the surface of the license plate, including:

[0035] The controller receives a detection instruction, and based on the detection instruction, sends a detection signal to the light intensity sensor;

[0036] When receiving the detection signal, the light intensity sensor detects a first light intensity signal on the surface of the license plate.

[0037] On the other hand, an electronic device is provided, comprising a processor and a memory, wherein the memory stores at least one program code, and the at least one program code is loaded and executed by the processor to implement the license plate cleaning method described in any one of the above-mentioned light intensity sensors, signal processing devices or controllers.

[0038] On the other hand, a computer-readable storage medium is provided, in which at least one program code is stored. The at least one program code is loaded and executed by a processor to implement any of the above-mentioned license plate cleaning methods.

[0039] On the other hand, a computer program product is provided, wherein at least one program code is stored in the computer program product, and the at least one program code is loaded and executed by a processor to implement any of the above-mentioned license plate cleaning methods.

[0040] On the other hand, a vehicle is provided, comprising a license plate washing system as described above.

[0041] The embodiment of the present application provides a license plate cleaning system, in which a light intensity sensor detects a light intensity signal on the surface of a license plate, sends the light intensity signal to a signal processing device, and the signal processing device determines whether the license plate needs to be cleaned based on the light intensity signal. If it is determined that the license plate needs to be cleaned, the signal processing device sends a cleaning signal to a controller. The controller controls the license plate cleaner to clean the license plate based on the cleaning signal. It can be seen that the system can realize automatic cleaning of the license plate through the interaction between the light intensity sensor, the signal processing device, the controller, and the license plate cleaner, without the need for manual cleaning, saving time and effort, thereby improving the cleaning efficiency.

[0042] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is a schematic diagram of a license plate cleaning system provided in an embodiment of the present application;

[0044] Figure 2 is a schematic diagram of another license plate cleaning system provided in an embodiment of the present application;

[0045] Figure 3 is a flow chart of a license plate cleaning method provided in an embodiment of the present application;

[0046] Figure 4 It is a structural block diagram of a controller provided in an embodiment of the present application. DETAILED DESCRIPTION

[0047] In order to make the technical solutions and advantages of the present application clearer, the implementation methods of the present application are described in further detail below.

[0048] The terms "first", "second", "third" and "fourth" etc. in the specification and claims of the present application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0049] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.) and signals involved in this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions. For example, the light intensity signal, voltage signal, cleaning signal, detection signal, etc. involved in this application are all obtained with full authorization.

[0050] Figure 1 is a schematic diagram of a license plate cleaning system provided in an embodiment of the present application, see Figure 1 , the system comprises: a light intensity sensor 101, a signal processing device 102, a controller 103 and a license plate washer 104 which are electrically connected in sequence;

[0051] The light intensity sensor 101 is used to detect a first light intensity signal on the surface of the license plate and send the first light intensity signal to the signal processing device 102;

[0052] The signal processing device 102 is used to send a first cleaning signal to the controller 103 when it is determined that the license plate needs to be cleaned based on the first light intensity signal;

[0053] The controller 103 is used to control the license plate cleaner 104 to clean the license plate based on the first cleaning signal.

[0054] In the embodiment of the present application, the electrical connection includes at least one of a circuit connection and a wireless connection. If the electrical connection is a circuit connection, the connection method may be a cable connection. If the electrical connection is a wireless connection, the connection method may be an Ethernet connection, an infrared connection, or a WiFi (Wireless Fidelity) network connection. In the embodiment of the present application, this is not specifically limited.

[0055] In the embodiment of the present application, the light intensity sensor 101 can be set on the license plate and located outside the license plate to detect the intensity of reflected light on the surface of the license plate, that is, the light intensity signal. The signal processing device 102 and the controller 103 are both set inside the vehicle, so that the aesthetics of the vehicle can be maintained. The number of light intensity sensors 101 can be one or more, and there is no specific limitation on this. For example, the number of light intensity sensors 101 is 2, which are respectively set at the two ends of the license plate, see Figure 2 .

[0056] The structure of the license plate washer 104 can be set and changed as needed, and there is no specific limitation on this. For example, the license plate washer 104 contains a cleaning liquid, and the license plate washer 104 includes a nozzle, through which the cleaning liquid is sprayed, and the cleaning liquid is used to clean the license plate. The number of nozzles can also be set and changed as needed, and there is no specific limitation on this. For another example, the license plate washer 104 is an ultrasonic generator, such as a mechanical ultrasonic generator, which cleans the license plate through ultrasonic vibration.

[0057] If the license plate washer 104 washes the license plate by spraying cleaning fluid, the license plate washer 104 can be arranged on the side of the license plate. If the license plate washer 104 washes the license plate by ultrasonic vibration, the license plate washer 104 can be arranged at the location of the license plate.

[0058] The number of the license plate washers 104 may be one or more, and there is no specific limitation on this. For example, the number of the license plate washers 104 is two, which wash the license plate by spraying a cleaning liquid and are respectively arranged on both sides of the license plate. Figure 2 .

[0059] In addition, the controller 103 may be a newly added controller of the vehicle, or may be a controller already in the vehicle. If the controller 103 is a controller already in the vehicle, the controller 103 may be a whole vehicle controller or other controllers, and no specific limitation is made to this. Furthermore, the license plate mentioned in this application includes the front license plate and the rear license plate of the vehicle, and the cleaning method of the front license plate and the rear license plate is the same.

[0060] In the embodiment of the present application, compared with the license plate being in a clean state, when the license plate surface is blocked by impurities such as dust and dirt, the light intensity signal on the license plate surface will change. Therefore, the present application detects the light intensity signal on the license plate surface through the light intensity sensor 101 to determine whether the license plate needs to be cleaned.

[0061] The light intensity sensor 101 may detect the light intensity signal on the surface of the license plate in real time or periodically, or may detect the light intensity signal on the surface of the license plate when receiving the detection signal sent by the controller 103, and there is no specific limitation on this.

[0062] If the light intensity sensor 101 periodically detects the light intensity signal on the surface of the license plate, the period can be set and changed as needed, and there is no specific limitation on this. For example, the period is one week, two weeks or one month.

[0063] If the light intensity sensor 101 detects the light intensity signal on the surface of the license plate based on the detection signal, the process may be: the controller 103 is further used to receive a detection instruction, and based on the detection instruction, send a detection signal to the light intensity sensor 101;

[0064] The light intensity sensor 101 is used to detect a first light intensity signal on the surface of the license plate when receiving a detection signal.

[0065] In this implementation, the controller 103 may receive a detection instruction sent by the vehicle-mounted terminal, and accordingly, the system may further include: a vehicle-mounted terminal, which is electrically connected to the controller 103. The vehicle-mounted terminal may display a license plate detection option, and in response to detecting a trigger operation of the license plate detection option, the vehicle-mounted terminal sends a detection instruction to the controller 103. Based on the detection instruction, the controller 103 sends a detection signal to the light intensity sensor 101, thereby triggering the light intensity sensor 101 to detect a light intensity signal on the surface of the license plate.

[0066] In the embodiments of this application, see Figure 1 , the signal processing device 102 includes: a signal processor 1021 and a voltage comparator 1022;

[0067] The signal processor 1021 is electrically connected to the light intensity sensor 101 and the voltage comparator 1022 respectively, and the voltage comparator 1022 is also electrically connected to the controller 103;

[0068] The signal processor 1021 is used to convert the first light intensity signal into a first voltage signal, and send the first voltage signal to the voltage comparator 1022;

[0069] The voltage comparator 1022 is used to compare the first voltage signal with the preset voltage signal; if it is determined based on the comparison result that the license plate needs to be cleaned, a first cleaning signal is sent to the controller 103.

[0070] In this implementation, the light intensity sensor 101 sends a first light intensity signal to the signal processor 1021 , and the signal processor 1021 converts the first light intensity signal into a first voltage signal and sends the first voltage signal to the voltage comparator 1022 .

[0071] In a possible implementation, the voltage comparator 1022 compares the first voltage signal with a preset voltage signal to determine whether the first voltage signal is less than the preset voltage signal. If the first voltage signal is less than the preset voltage signal, the voltage comparator 1022 determines that the license plate needs to be cleaned. If the first voltage signal is not less than the preset voltage signal, the voltage comparator 1022 determines that the license plate does not need to be cleaned.

[0072] In another possible implementation, the voltage comparator 1022 compares the first voltage signal with the preset voltage signal to determine the value of the first voltage signal minus the preset voltage signal, that is, the signal difference between the two. If the signal difference is 0 or a positive value, it means that the first voltage signal is not less than the preset voltage signal, and the voltage comparator 1022 determines that the license plate does not need to be cleaned. If the signal difference is a negative value, it means that the first voltage signal is less than the preset voltage signal, and the voltage comparator 1022 determines that the license plate needs to be cleaned.

[0073] When the voltage comparator 1022 determines that the license plate needs to be cleaned, it sends a first cleaning signal to the controller 103 .

[0074] The voltage comparator 1022 may directly send the first cleaning signal to the controller 103 , or may carry the signal difference in the first cleaning signal, which is not specifically limited.

[0075] If the voltage comparator 1022 directly sends the first cleaning signal to the controller 103 , the controller 103 controls the license plate cleaner 104 to clean the license plate based on the first cleaning signal.

[0076] If the first cleaning signal carries the signal difference, the controller 103 determines the occlusion of the license plate based on the signal difference in the first cleaning signal; determines the target cleaning level based on the occlusion of the license plate; and controls the license plate cleaner 104 to clean the license plate based on the target cleaning level.

[0077] In this implementation, the controller 103 pre-stores a first correspondence between signal difference, signal difference range and occlusion level. Based on the signal difference in the first cleaning signal and the first correspondence, the controller 103 first determines the target signal difference range in which the signal difference is located, and then determines the target occlusion level corresponding to the target signal difference range. The target occlusion level is used to reflect the occlusion condition of the license plate.

[0078] The controller 103 may also pre-store a second correspondence between the shielding level and the cleaning level, and determine the target cleaning level corresponding to the target shielding level according to the target shielding level and the second correspondence. The higher the shielding level, the more serious the license plate shielding is, and the higher the corresponding cleaning level.

[0079] The controller 103 can control the license plate washer 104 to use different cleaning methods to clean the license plate based on the type of the license plate washer 104 .

[0080] If the license plate washer 104 contains cleaning fluid and the license plate is cleaned by spraying the cleaning fluid, the controller 103 may control the license plate washer 104 to clean the license plate in any of the following implementations.

[0081] In the first mode, the controller 103 pre-stores the third correspondence between the cleaning level and the cleaning fluid flow rate, and determines the target cleaning fluid flow rate corresponding to the target cleaning level according to the target cleaning level and the third correspondence. The controller 103 controls the license plate washer 104 to spray the cleaning fluid according to the target cleaning fluid flow rate, and the cleaning fluid is used to clean the license plate.

[0082] In an embodiment of the present application, when the license plate is not obstructed seriously, the cleaning level is low. In this case, the controller 103 can control the license plate cleaner 104 to spray a smaller flow of cleaning fluid; when the license plate is obstructed seriously, the cleaning level is high. In this case, the controller 103 can control the license plate cleaner 104 to spray a larger flow of cleaning fluid, thereby achieving automatic cleaning of the license plate and effective and flexible cleaning of the license plate based on the license plate obstruction situation.

[0083] In the second mode, the controller 103 pre-stores the fourth correspondence between the cleaning level and the cleaning times, and determines the target cleaning times corresponding to the target cleaning level according to the target cleaning level and the fourth correspondence. The controller 103 controls the license plate washer 104 to spray the cleaning fluid according to the target cleaning times, and the cleaning fluid is used to clean the license plate.

[0084] In an embodiment of the present application, when the license plate is not obstructed seriously, the cleaning level is low. In this case, the controller 103 can control the license plate cleaner 104 to spray the cleaning fluid less frequently; when the license plate is obstructed seriously, the cleaning level is high. In this case, the controller 103 can control the license plate cleaner 104 to spray the cleaning fluid more frequently, thereby achieving automatic cleaning of the license plate and effective and flexible cleaning of the license plate based on the license plate obstruction situation.

[0085] In a third manner, the controller 103 pre-stores a fifth correspondence between the cleaning level, the cleaning fluid flow rate, and the cleaning times, and determines a target cleaning fluid flow rate and a target cleaning times corresponding to the target cleaning level according to the target cleaning level and the fifth correspondence. The controller 103 controls the license plate washer 104 to spray the cleaning fluid according to the target cleaning fluid flow rate and the target cleaning times, and uses the cleaning fluid to clean the license plate.

[0086] In an embodiment of the present application, when the license plate is not obstructed seriously, the cleaning level is low. In this case, the controller 103 can control the license plate cleaner 104 to spray a smaller flow of cleaning fluid and spray the cleaning fluid less frequently; when the license plate is obstructed seriously, the cleaning level is high. In this case, the controller 103 can control the license plate cleaner 104 to spray a larger flow of cleaning fluid and spray the cleaning fluid more frequently, thereby achieving automatic cleaning of the license plate and effective and flexible cleaning of the license plate based on the license plate obstruction situation.

[0087] It should be noted that a wiping member may be provided on the license plate washer 104. After the cleaning is completed, the controller 103 may control the wiping member to wipe the license plate, thereby improving the cleanliness of the license plate surface.

[0088] If the license plate cleaner 104 is an ultrasonic generator that cleans the license plate by ultrasonic vibration, the controller 103 can clean the license plate by any of the following implementations.

[0089] In the first mode, the sixth correspondence between the cleaning level and the vibration frequency is pre-stored in the controller 103, and the target vibration frequency corresponding to the target cleaning level is determined according to the target cleaning level and the sixth correspondence. The controller 103 controls the license plate washer 104 to vibrate according to the target vibration frequency, thereby washing the license plate.

[0090] In an embodiment of the present application, when the license plate obstruction is not serious, the cleaning level is low. In this case, the controller 103 can control the license plate cleaner 104 to vibrate with a smaller vibration frequency; when the license plate obstruction is more serious, the cleaning level is higher. In this case, the controller 103 can control the license plate cleaner 104 to vibrate with a larger vibration frequency, thereby achieving automatic cleaning of the license plate and effective and flexible cleaning of the license plate based on the license plate obstruction situation.

[0091] In the second mode, the controller 103 pre-stores the seventh correspondence between the cleaning level and the vibration amplitude, and determines the target vibration amplitude corresponding to the target cleaning level according to the target cleaning level and the seventh correspondence. The controller 103 controls the license plate washer 104 to vibrate according to the target vibration amplitude, thereby washing the license plate.

[0092] In an embodiment of the present application, when the license plate is not obstructed seriously, the cleaning level is low. In this case, the controller 103 can control the license plate cleaner 104 to vibrate with a smaller vibration amplitude; when the license plate is obstructed seriously, the cleaning level is high. In this case, the controller 103 can control the license plate cleaner 104 to vibrate with a larger vibration amplitude, thereby achieving automatic cleaning of the license plate and effective and flexible cleaning of the license plate based on the license plate obstruction situation.

[0093] In a third manner, the controller 103 pre-stores the eighth corresponding relationship among the cleaning level, the vibration frequency, and the vibration amplitude, and determines the target vibration frequency and the target vibration amplitude corresponding to the target cleaning level according to the target cleaning level and the eighth corresponding relationship. The controller 103 controls the license plate washer 104 to vibrate according to the target vibration frequency and the target vibration amplitude, thereby washing the license plate.

[0094] In an embodiment of the present application, when the license plate obstruction is not serious, the cleaning level is low. In this case, the controller 103 can control the license plate cleaner 104 to vibrate with a smaller vibration amplitude and vibration frequency; when the license plate obstruction is more serious, the cleaning level is higher. In this case, the controller 103 can control the license plate cleaner 104 to vibrate with a larger vibration amplitude and vibration frequency, thereby achieving automatic cleaning of the license plate and effective and flexible cleaning of the license plate based on the license plate obstruction situation.

[0095] In the embodiment of the present application, during the process of cleaning the license plate, an early warning can also be issued through the early warning device 105. Figure 1 , the system further includes: an early warning device 105;

[0096] The early warning device 105 is electrically connected to the controller 103;

[0097] The controller 103 is further configured to control the warning device 105 to issue a warning based on the first cleaning signal.

[0098] In this implementation, the controller 103 can also control the warning device 105 to issue a warning while controlling the license plate cleaner 104 to clean the license plate, thereby reminding the user that the license plate is being cleaned.

[0099] The warning method can be set and changed as needed, and is not specifically limited thereto. For example, the warning method is a sound warning or an audio-visual warning.

[0100] In the embodiment of the present application, the controller 103 may also display a prompt message through the vehicle-mounted terminal. For example, the controller 103 displays “the license plate is being cleaned” through the vehicle-mounted terminal to remind the user.

[0101] During the process of cleaning the license plate, the light intensity sensor 101 also detects the second light intensity signal on the surface of the license plate in real time or periodically, and sends the second light intensity signal to the signal processing device 102. When the signal processing device 102 determines that the license plate has been cleaned based on the second light intensity signal, it sends a cleaning completion signal to the controller 103.

[0102] The light intensity sensor 101 sends a second light intensity signal to the signal processor 1021 , and the signal processor 1021 converts the second light intensity signal into a second voltage signal and sends the second voltage signal to the voltage comparator 1022 .

[0103] In a possible implementation, the voltage comparator 1022 compares the second voltage signal with the preset voltage signal to determine whether the second voltage signal is less than the preset voltage signal. If the second voltage signal is not less than the preset voltage signal, the voltage comparator 1022 determines that the license plate has been cleaned and sends a cleaning completion signal to the controller 103.

[0104] In another possible implementation, the voltage comparator 1022 compares the second voltage signal with the preset voltage signal to determine the difference between the second voltage signal and the preset voltage signal. For ease of distinction, the difference between the first voltage signal and the preset voltage signal is referred to as the first signal difference, and the difference between the second voltage signal and the preset voltage signal is referred to as the second signal difference. If the second signal difference is 0 or a positive value, indicating that the second voltage signal is not less than the preset voltage signal, the voltage comparator 1022 determines that the license plate has been cleaned and sends a cleaning completion signal to the controller 103.

[0105] Based on the cleaning completion signal, the controller 103 controls the license plate washer 104 to stop cleaning the license plate, and controls the warning device 105 to stop issuing a warning.

[0106] In the embodiment of the present application, when the light intensity signal on the surface of the license plate meets the conditions, the controller 103 can also control the license plate cleaner 104 to stop cleaning the license plate, and at the same time control the warning device 105 to stop warning.

[0107] The embodiment of the present application provides a license plate cleaning system, in which a light intensity sensor detects a light intensity signal on the surface of a license plate, sends the light intensity signal to a signal processing device, and the signal processing device determines whether the license plate needs to be cleaned based on the light intensity signal. If it is determined that the license plate needs to be cleaned, the signal processing device sends a cleaning signal to a controller. The controller controls the license plate cleaner to clean the license plate based on the cleaning signal. It can be seen that the system can realize automatic cleaning of the license plate through the interaction between the light intensity sensor, the signal processing device, the controller, and the license plate cleaner, without the need for manual cleaning, saving time and effort, thereby improving the cleaning efficiency.

[0108] Figure 3 is a flow chart of a license plate cleaning method provided in an embodiment of the present application, see Figure 3 , the method comprising:

[0109] Step 301: The light intensity sensor detects a first light intensity signal on the surface of the license plate and sends the first light intensity signal to a signal processing device.

[0110] Step 302: When the signal processing device determines that the license plate needs to be cleaned based on the first light intensity signal, the signal processing device sends a first cleaning signal to the controller.

[0111] Step 303: The controller controls the license plate washer to clean the license plate based on the first cleaning signal.

[0112] In a possible implementation, the signal processing device includes: a signal processor and a voltage comparator;

[0113] The signal processing device sends a first cleaning signal to the controller when determining that the license plate needs to be cleaned based on the first light intensity signal, including:

[0114] The signal processor converts the first light intensity signal into a first voltage signal, and sends the first voltage signal to the voltage comparator;

[0115] The voltage comparator compares the first voltage signal with the preset voltage signal; if it is determined that the license plate needs to be cleaned based on the comparison result, a first cleaning signal is sent to the controller.

[0116] In another possible implementation, the method further includes:

[0117] The controller controls the early warning device to issue an early warning based on the first cleaning signal.

[0118] In another possible implementation, the controller controls the license plate washer to clean the license plate based on the first cleaning signal, including:

[0119] The controller determines the occlusion condition of the license plate based on the first cleaning signal;

[0120] Determine the target cleaning level based on the occlusion of the license plate;

[0121] Based on the target cleaning level, the license plate washer is controlled to clean the license plate.

[0122] In another possible implementation, the light intensity sensor detects a first light intensity signal on the surface of the license plate, including:

[0123] The controller receives the detection instruction, and sends a detection signal to the light intensity sensor based on the detection instruction;

[0124] When receiving the detection signal, the light intensity sensor detects a first light intensity signal on the surface of the license plate.

[0125] The embodiment of the present application provides a license plate cleaning method, in which a light intensity sensor detects a light intensity signal on the surface of a license plate, sends the light intensity signal to a signal processing device, and the signal processing device determines whether the license plate needs to be cleaned based on the light intensity signal. If it is determined that the license plate needs to be cleaned, the signal processing device sends a cleaning signal to a controller. The controller controls the license plate cleaner to clean the license plate based on the cleaning signal. It can be seen that the method can realize automatic cleaning of the license plate through the interaction between the light intensity sensor, the signal processing device, the controller, and the license plate cleaner, without the need for manual cleaning, saving time and effort, thereby improving the cleaning efficiency.

[0126] It should be noted that the license plate cleaning method in the present application and the license plate cleaning system embodiment belong to the same concept. The specific implementation process is detailed in the system embodiment and will not be repeated here.

[0127] Figure 4 It is a schematic diagram of the structure of a controller provided according to an embodiment of the present application.

[0128] Typically, the controller 400 includes: a main control module 401, a CAN interface 402, a hard-line input interface 403, and a hard-line output interface 404. The main control module 401 is connected to the CAN interface 402, the hard-line input interface 403, and the hard-line output interface 404, respectively.

[0129] The main control module 401 generally includes a processor and a memory. Among them, the processor may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor may be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array). The processor may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the vehicle display screen. In some embodiments, the processor may also include an AI (Artificial Intelligence) processor, which is used to process computing operations related to machine learning. The memory may include one or more computer-readable storage media, which may be non-transitory. The memory may also include a high-speed random access memory and a non-volatile memory, such as one or more disk storage devices and flash storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory is used to store at least one program code, and the at least one program code is used to be executed by the processor to implement the operations performed by the controller in the license plate cleaning method.

[0130] The CAN interface 402 may include a power CAN interface, a motor CAN interface, and a diagnostic CAN interface, wherein the power CAN interface is used to communicate with a power system module of the vehicle, the motor CAN interface is used to communicate with a motor controller of the vehicle, and the diagnostic CAN interface is used to communicate with a diagnostic device.

[0131] The hard-wire input interface 403 is used to receive hard-wire control signals. The hard-wire output interface 404 is used to send control instructions to the electronic control components of the vehicle so that the electronic control components of the vehicle perform corresponding actions. The electronic control components of the vehicle include a power management system, a motor controller, an on-board charger, a body control system, etc.

[0132] The main control module 401 can communicate with the vehicle's power system module, motor controller and diagnostic equipment through the CAN interface 402, and generate control instructions based on the hard-wired control signal received by the hard-wired input interface 403 to send control instructions to the vehicle's electronic control components through the hard-wired output interface 404.

[0133] Those skilled in the art will understand that Figure 4 The structure shown in the figure does not constitute a limitation on the controller 400, and the controller 400 may include more or less components than those shown in the figure, or combine some components, or adopt a different component arrangement.

[0134] In an exemplary embodiment, a computer-readable storage medium is also provided, which stores at least one program code, and the at least one program code is loaded and executed by a processor to implement the license plate cleaning method in the above embodiment.

[0135] In an exemplary embodiment, a computer program product is also provided. The computer program product stores at least one program code, and the at least one program code is loaded and executed by a processor to implement the license plate cleaning method in the above embodiment.

[0136] In an exemplary embodiment, a vehicle is also provided. The vehicle includes the license plate washing system in the above system embodiment.

[0137] The vehicle may be a pure electric vehicle, a hybrid vehicle or a fuel vehicle, without specific limitation.

[0138] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

[0139] The above description is only for the purpose of facilitating those skilled in the art to understand the technical solution of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A license plate cleaning system, characterized in that: The system comprises: a light intensity sensor, a signal processing device, a controller and a license plate washer which are electrically connected in sequence; The light intensity sensor is used to detect a first light intensity signal on the surface of the license plate and send the first light intensity signal to the signal processing device; The signal processing device is used to send a first cleaning signal to the controller when it is determined that the license plate needs to be cleaned based on the first light intensity signal; The controller is used to control the license plate washer to clean the license plate based on the first cleaning signal.

2. The system according to claim 1, characterized in that The signal processing device comprises: a signal processor and a voltage comparator; The signal processor is electrically connected to the light intensity sensor and the voltage comparator respectively, and the voltage comparator is also electrically connected to the controller; The signal processor is used to convert the first light intensity signal into a first voltage signal, and send the first voltage signal to the voltage comparator; The voltage comparator is used to compare the first voltage signal with a preset voltage signal; if it is determined that the license plate needs to be cleaned based on the comparison result, the first cleaning signal is sent to the controller.

3. The system according to claim 1, characterized in that The system also includes: early warning equipment; The early warning device is electrically connected to the controller; The controller is further used to control the early warning device to issue an early warning based on the first cleaning signal.

4. The system according to claim 1, characterized in that The controller is used to determine the occlusion condition of the license plate based on the first cleaning signal; Determining a target cleaning level based on the occlusion of the license plate; Based on the target cleaning level, the license plate washer is controlled to clean the license plate.

5. The system according to claim 1, characterized in that The controller is further configured to receive a detection instruction, and send a detection signal to the light intensity sensor based on the detection instruction; The light intensity sensor is used to detect a first light intensity signal on the surface of the license plate when receiving the detection signal.

6. A license plate cleaning method, characterized in that: The method comprises: The light intensity sensor detects a first light intensity signal on the surface of the license plate and sends the first light intensity signal to the signal processing device; The signal processing device sends a first cleaning signal to the controller when it is determined that the license plate needs to be cleaned based on the first light intensity signal; The controller controls a license plate washer to clean the license plate based on the first cleaning signal.

7. An electronic device, characterized in that: The electronic device includes a processor and a memory, wherein at least one program code is stored in the memory, and the at least one program code is loaded and executed by the processor to implement the license plate cleaning method described in the light intensity sensor, signal processing device or controller in claim 6.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores at least one program code, and the at least one program code is loaded and executed by the processor to implement the license plate cleaning method as described in claim 6.

9. A computer program product, characterized in that The computer program product stores at least one program code, and the at least one program code is loaded and executed by a processor to implement the license plate cleaning method as described in claim 6.

10. A vehicle, characterized in that: The vehicle comprises a license plate washing system as claimed in any one of claims 1 to 5.

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