A sensor blowing cleaning method and system based on a vehicle-mounted central gas source

Abstract

This application proposes a sensor-based air-blowing cleaning method and system based on a vehicle-mounted central air source, belonging to the field of control system technology. First, it determines whether contaminants are adhered by using detection signals fed back from sensors. If so, in the first cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a first spray pressure and a first intermittent alternating frequency, and the system is checked again. If the contaminants are still present, the spray pressure is increased in the next cycle. If the contaminants are still present, the spray frequency is increased in the next cycle. This sensor-based air-blowing cleaning system based on a vehicle-mounted central air source achieves a triple technical effect of precise cleaning, energy consumption optimization, and equipment protection through an innovative combination of progressive intensity adjustment and periodic pollution monitoring.

Description

Technical Field

[0001] This application relates to the field of control technology, and in particular to a sensor air blowing cleaning method and system based on an on-board central air source. Background Technology

[0002] With the development of autonomous driving technology, vehicle sensors (such as LiDAR, cameras, and millimeter-wave radar) are facing severe environmental pollution challenges. Traditional cleaning methods mainly use air-blowing cleaning schemes with fixed parameters. However, maintaining high pressure throughout the cleaning process leads to excessive energy consumption, and the continuous airflow causes sudden changes in sensor surface temperature, which can easily accelerate the aging of optical components. Summary of the Invention

[0003] This application provides a sensor air-blowing cleaning method and system based on an on-board central air source to improve the above-mentioned problems.

[0004] To achieve the above objectives, this application adopts the following technical solution: Firstly, this application proposes a sensor air-blowing cleaning method based on an on-board central air source, the method comprising: At the beginning of the first cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors; If it is determined that contaminants are adhering at the beginning of the first cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a first spray pressure and a first intermittent alternation frequency during the first cycle. At the beginning of the second cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors; If it is determined that contaminants are adhering at the beginning of the second cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second spray pressure and a first intermittent alternating frequency during the second cycle, wherein the second spray pressure is greater than the first spray pressure. At the beginning of the third cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors. If it is determined that contaminants are adhering at the beginning of the third cycle, then during the third cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second spray pressure and a second alternating frequency, wherein the second alternating frequency is greater than the first alternating frequency.

[0005] In conjunction with the first aspect, in some implementations, the method further includes: At the beginning of the fourth cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors. If it is determined that contaminants adhere at the beginning of the fourth cycle, then during the fourth cycle, the cleaning nozzle is controlled to spray cleaning gas towards the sensor at a second injection pressure and according to the first injection logic. The first injection logic is as follows: In the fourth cycle, the cleaning nozzle sprays intermittently, and the frequency of these intermittent sprays gradually increases over time.

[0006] In conjunction with the first aspect, in some embodiments, during the fourth cycle, the cleaning nozzle sprays intermittently, and the frequency of the alternating intervals of the sprays gradually increases over time, satisfying the following: In the fourth cycle, the minimum value of the alternating frequency of the cleaning nozzles is less than the first alternating frequency, and the maximum value of the alternating frequency of the cleaning nozzles is greater than the second alternating frequency.

[0007] In conjunction with the first aspect, in some embodiments, if it is determined that contaminants adhere at the beginning of the fourth cycle, after controlling the cleaning nozzle to spray cleaning gas at a second spray pressure and a first spray logic in the fourth cycle, the following steps are included: At the beginning of the fifth cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors. If it is determined that contaminants are adhering at the beginning of the fifth cycle, an alarm signal will be output.

[0008] In conjunction with the first aspect, in some embodiments, the cleaning nozzle includes a first nozzle and a second nozzle disposed opposite to each other. If it is determined that contaminants adhere at the beginning of the first cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas at a first spray pressure and a first intermittent alternation frequency during the first cycle, including: The first nozzle and the second nozzle simultaneously spray cleaning gas intermittently at a first intermittent alternation frequency. When the first nozzle is spraying gas, the second nozzle is in a spray stop interval, and when the second nozzle is spraying gas, the first nozzle is in a spray stop interval.

[0009] In conjunction with the first aspect, in some embodiments, the cleaning nozzle includes a first nozzle and a second nozzle disposed opposite to each other, and the method further includes: At the beginning of the fourth cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors. If it is determined that contaminants are adhering at the beginning of the fourth cycle, then during the fourth cycle, the first nozzle is controlled to intermittently spray clean gas onto the sensor at a second injection pressure and a first intermittent alternation frequency; and the second nozzle is controlled to intermittently spray clean gas onto the sensor at a second injection pressure and a second intermittent alternation frequency.

[0010] In conjunction with the first aspect, in some implementations, the method includes: Obtain the fundamental resonant frequency of the sensor surface; If contaminants are determined to be adhering at the beginning of the second cycle, then during the second cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second injection pressure and a first intermittent alternating frequency, satisfying the following: The fundamental resonant frequency is equal to the first intermittent alternation frequency.

[0011] In conjunction with the first aspect, in some implementations, the method further includes: Obtain the surface temperature of the sensor; At the beginning of the fourth cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors. If it is determined that contaminants are adhering at the beginning of the fourth cycle and the surface temperature is less than or equal to 0 degrees Celsius, then in the fourth cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second spray pressure and a third intermittent alternating frequency, where the third intermittent alternating frequency is less than the first intermittent alternating frequency. If it is determined that contaminants are adhering at the beginning of the fourth cycle and the surface temperature is greater than 50 degrees Celsius, then in the fourth cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second spray pressure and a fourth intermittent alternating frequency, with the fourth intermittent alternating frequency being greater than the second intermittent alternating frequency.

[0012] In conjunction with the first aspect, in some implementations, the third intermittent alternation frequency is greater than 0.5 Hz and less than 2 Hz.

[0013] Secondly, this application proposes a sensor-driven air-blowing cleaning system based on an on-board central air source, the system being configured as follows: At the beginning of the first cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors; If it is determined that contaminants are adhering at the beginning of the first cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a first spray pressure and a first intermittent alternation frequency during the first cycle. At the beginning of the second cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors; If it is determined that contaminants are adhering at the beginning of the second cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second spray pressure and a first intermittent alternating frequency during the second cycle, wherein the second spray pressure is greater than the first spray pressure. At the beginning of the third cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors. If it is determined that contaminants are adhering at the beginning of the third cycle, then during the third cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second spray pressure and a second alternating frequency, wherein the second alternating frequency is greater than the first alternating frequency.

[0014] In conjunction with the second aspect, in some implementations, the system is configured as follows: At the beginning of the fourth cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors. If it is determined that contaminants adhere at the beginning of the fourth cycle, then during the fourth cycle, the cleaning nozzle is controlled to spray cleaning gas towards the sensor at a second injection pressure and according to the first injection logic. The first injection logic is as follows: In the fourth cycle, the cleaning nozzle sprays intermittently, and the frequency of these intermittent sprays gradually increases over time.

[0015] In conjunction with the second aspect, in some implementations, the system is configured as follows: In the fourth cycle, the cleaning nozzle sprays intermittently, and the frequency of the alternating intervals gradually increases over time, satisfying the following: In the fourth cycle, the minimum value of the alternating frequency of the cleaning nozzles is less than the first alternating frequency, and the maximum value of the alternating frequency of the cleaning nozzles is greater than the second alternating frequency.

[0016] In conjunction with the first aspect, in some embodiments, if it is determined that contaminants adhere at the beginning of the fourth cycle, after controlling the cleaning nozzle to spray cleaning gas at a second spray pressure and a first spray logic in the fourth cycle, the following steps are included: At the beginning of the fifth cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors. If it is determined that contaminants are adhering at the beginning of the fifth cycle, an alarm signal will be output.

[0017] In conjunction with the second aspect, in some implementations, the system is configured as follows: The cleaning nozzle includes a first nozzle and a second nozzle arranged opposite to each other. If it is determined that contaminants are adhering at the beginning of the first cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas at a first spray pressure and a first intermittent alternation frequency during the first cycle, including: The first nozzle and the second nozzle simultaneously spray cleaning gas intermittently at a first intermittent alternation frequency. When the first nozzle is spraying gas, the second nozzle is in a spray stop interval, and when the second nozzle is spraying gas, the first nozzle is in a spray stop interval.

[0018] In conjunction with the second aspect, in some implementations, the system is configured as follows: The cleaning nozzles include a first nozzle and a second nozzle positioned opposite each other, and the method further includes: At the beginning of the fourth cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors. If it is determined that contaminants are adhering at the beginning of the fourth cycle, then during the fourth cycle, the first nozzle is controlled to intermittently spray clean gas onto the sensor at a second injection pressure and a first intermittent alternation frequency; and the second nozzle is controlled to intermittently spray clean gas onto the sensor at a second injection pressure and a second intermittent alternation frequency.

[0019] In conjunction with the second aspect, in some implementations, the system is configured as follows: Obtain the fundamental resonant frequency of the sensor surface; If contaminants are determined to be adhering at the beginning of the second cycle, then during the second cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second injection pressure and a first intermittent alternating frequency, satisfying the following: The fundamental resonant frequency is equal to the first intermittent alternation frequency.

[0020] In conjunction with the second aspect, in some implementations, the system is configured as follows: Obtain the surface temperature of the sensor; At the beginning of the fourth cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors. If it is determined that contaminants are adhering at the beginning of the fourth cycle and the surface temperature is less than or equal to 0 degrees Celsius, then in the fourth cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second spray pressure and a third intermittent alternation frequency, where the third intermittent alternation frequency is less than the first intermittent alternation frequency.

[0021] A third aspect of this invention provides an electronic device, which includes: At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method proposed in the first aspect of the present invention.

[0022] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method as described in the first aspect of the present invention.

[0023] In summary, the above methods and systems have the following technical effects: This application proposes a sensor-based air-blowing cleaning method and system based on a vehicle-mounted central air source. First, it determines whether contaminants are adhered by using detection signals from sensors. If contaminants are present, in the first cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a first spray pressure and a first intermittent alternating frequency, and the sensor is checked again. If contaminants are still present, the spray pressure is increased in the next cycle. If contaminants are still present, the spray frequency is increased in the next cycle. This sensor-based air-blowing cleaning method and system, based on a vehicle-mounted central air source, achieves a triple technical effect of precise cleaning, energy consumption optimization, and equipment protection through an innovative combination of progressive intensity adjustment and periodic pollution monitoring. Attached Figure Description

[0024] Figure 1This diagram illustrates a sensor air-blowing cleaning method based on a vehicle-mounted central air source, as proposed in an embodiment of this application. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] This application proposes a sensor air-blowing cleaning method based on an on-board central air source, applicable to a vehicle, which can be one of a gasoline-powered vehicle, an electric vehicle, a range-extended vehicle, or a hybrid vehicle. The vehicle includes a vehicle body, a power unit, and an on-board central air source system. The on-board central air source system is fixedly installed on the vehicle body.

[0027] The vehicle-mounted central air supply system may include an air compressor, multiple molecular sieve tanks, multiple air storage tanks, a valve assembly, and an air supply controller. The molecular sieve tanks are connected to the air compressor; the air storage tanks are connected to the molecular sieve tanks, wherein at least one air storage tank is used to store nitrogen; the air supply controller is connected to the valve assembly and the air compressor.

[0028] Understandably, the air compressor serves as the gas source; multiple molecular sieve tanks are connected downstream of the air compressor to separate nitrogen from the air; multiple gas storage tanks are connected after the molecular sieve tanks to store the separated gas, with at least one storage tank specifically for storing high-purity nitrogen; valve assemblies are used to precisely control the flow and on / off of gas between various components; and the gas source controller acts as the brain of the system, connecting and coordinating the actions of the valve assemblies and the start and stop of the air compressor to ensure that the entire system operates efficiently and reliably on demand, providing the required gas source for the vehicle.

[0029] The vehicle also includes a vehicle controller for controlling the vehicle. In this embodiment, the vehicle controller can be used to execute a sensor blowing cleaning method based on an on-board central air source proposed in this application. Please refer to [link to relevant documentation]. Figure 1 This includes the following steps: S101: At the beginning of the first cycle, the contaminant adhesion status is determined based on the detection signal fed back by the sensor.

[0030] Understandably, modern cars are equipped with various sensors. Whether a sensor is blocked by contaminants can be determined based on the sensor's own feedback data or by using an additional contaminant sensor; this application does not impose any limitations on this. In this application, detection is activated at the start of a preset cycle.

[0031] For example, different sensors use different methods to detect the presence or absence of dirt. This application does not specify how to determine the presence of contaminants.

[0032] S102: If it is determined that contaminants are adhering at the beginning of the first cycle, then in the first cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas to the sensor at a first spray pressure and a first intermittent alternation frequency.

[0033] Understandably, in the first cycle, if it is determined that there are contaminants at the start time, the cleaning nozzles can be controlled to spray. By spraying cleaning gas, the contaminants can be removed.

[0034] Optionally, the fundamental resonant frequency of the sensor surface can also be obtained during the first cycle. The method of obtaining this frequency can include prior measurement, etc., and is not limited here. In the first cycle, preferentially using a first intermittent alternating frequency that is the same as the fundamental resonant frequency of the sensor surface to intermittently spray cleaning gas onto the sensor can induce resonance on the sensor surface, resulting in better removal of low-adhesion contaminants.

[0035] Optionally, the cleaning nozzle includes a first nozzle and a second nozzle arranged opposite to each other. The first nozzle and the second nozzle are arranged opposite to each other to ensure that the surface of the sensor is covered over a larger area during the spraying process. At the same time, the forces exerted on the contaminants in different directions can further reduce the adhesion of the contaminants.

[0036] In this embodiment, as one implementation method, the first nozzle and the second nozzle simultaneously spray cleaning gas intermittently at a first intermittent alternation frequency, and when the first nozzle sprays gas, the second nozzle is in a spray stop interval, and when the second nozzle sprays gas, the first nozzle is in a spray stop interval.

[0037] Understandably, by alternating between the first and second nozzles, it can be ensured that the pollutants are always subjected to a single force, and can be more quickly peeled off from the sensor surface.

[0038] S103: At the beginning of the second cycle, the adhesion of pollutants is determined based on the detection signal fed back by the sensor.

[0039] Understandably, at the start of the second cycle, the adhesion of contaminants can be checked again. If the contaminants no longer adhere, the cleaning process can be stopped.

[0040] S104: If it is determined that contaminants are adhering at the beginning of the second cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second spray pressure and a first intermittent alternating frequency during the second cycle, wherein the second spray pressure is greater than the first spray pressure.

[0041] Understandably, if contaminants are still present on the sensor surface after the second test, it indicates that the cleaning effect in the first cycle was inadequate. In this case, the cleaning pressure of the cleaning nozzle can be increased directly in the second cycle to achieve a stronger cleaning effect. It's understandable that low-frequency cleaning removes solid particles, while high-frequency cleaning removes oily deposits.

[0042] S105: At the beginning of the third cycle, the adhesion of pollutants is determined based on the detection signal fed back by the sensor.

[0043] Similar to the start of the second cycle, at the start of the third cycle, if no more contaminants are detected to be adhering, the contaminant cleaning process can be stopped.

[0044] S106: If it is determined that contaminants are adhering at the beginning of the third cycle, then during the third cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second spray pressure and a second alternating frequency, wherein the second alternating frequency is greater than the first alternating frequency.

[0045] If contaminants are still detected at the start of the third cycle, it can be determined that the cleaning effect in the first and second cycles was poor. In this case, the injection pressure can be further increased; however, excessive pressure may damage the sensor or cause rapid consumption of the gas source. Therefore, in this application, during the third cycle, while maintaining the injection pressure, cleaning gas can be injected into the sensor at a higher frequency. With increased frequency, more gas is ejected, improving the cleaning effect. Furthermore, when the frequency changes, the injection frequency may further approach the inherent frequency of the contaminants, further enhancing the cleaning effect.

[0046] Furthermore, after the third cycle, the fourth cycle also identifies contaminants. If contaminants are still present at the start of the fourth cycle, the cleaning effect of the above processes will be poor. Therefore, in the fourth cycle, cleaning gas can be sprayed onto the sensor at a varying spray frequency. Thus, in this embodiment, if it is determined that contaminants are adhering at the start of the fourth cycle, the cleaning nozzle is controlled to spray cleaning gas onto the sensor at a second spray pressure and a first spray logic during the fourth cycle, wherein the first spray logic is: In the fourth cycle, the cleaning nozzle sprays intermittently, and the frequency of these intermittent sprays gradually increases over time.

[0047] Understandably, by covering the resonance points of different contaminants with continuously varying impact frequencies, the stripping efficiency can be significantly improved while maintaining constant pressure. To ensure that the continuously varying impact frequencies are sufficiently broad, in this embodiment, in the fourth cycle, the minimum value of the alternating intermittent frequency of the cleaning nozzle is less than the first intermittent alternating frequency, and the maximum value of the alternating frequency of the cleaning nozzle is greater than the second intermittent alternating frequency.

[0048] In other embodiments, when the nozzle includes a first nozzle and a second nozzle, unlike the gradual increase in frequency of a single nozzle, the combined action of the two nozzles allows airflows of different frequencies to interfere with each other. Therefore, the actual frequency acting on the contaminants is complex and variable, which can further improve the cleaning effect to some extent. For example, if it is determined that contaminants are adhered at the beginning of the fourth cycle, then in the fourth cycle, the first nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second injection pressure and a first intermittent alternating frequency; and the second nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second injection pressure and a second intermittent alternating frequency.

[0049] In other embodiments, the control logic may also be determined in conjunction with the surface temperature of the sensor. For example, the surface temperature of the sensor may also be obtained.

[0050] If it is determined that contaminants are adhering at the beginning of the fourth cycle and the surface temperature is less than or equal to 0 degrees Celsius, then in the fourth cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second spray pressure and a third intermittent alternation frequency, where the third intermittent alternation frequency is less than the first intermittent alternation frequency.

[0051] Understandably, low-frequency oscillations at low temperatures break up ice crystals. Specifically, the third intermittent alternation frequency is greater than 0.5 Hz and less than 2 Hz. Conversely, if it is determined that contaminants adhere at the beginning of the fourth cycle and the surface temperature is greater than 50 degrees Celsius, then in the fourth cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at the second spray pressure and the fourth intermittent alternation frequency, which is greater than the second intermittent alternation frequency.

[0052] When the temperature is greater than 50 degrees Celsius, water vapor evaporation can be suppressed by high-frequency harmonics. Specifically, the fourth intermittent alternation frequency is greater than 5 and less than 10 Hz.

[0053] After the above cycle is completed, at the beginning of the fifth cycle, the adhesion of pollutants is determined based on the detection signal fed back by the sensor. If it is determined that contaminants are present at the beginning of the fifth cycle, and these contaminants cannot be removed by simple means, an alarm signal can be output to remind the driver to perform a manual inspection.

[0054] This application proposes a sensor-based air-blowing cleaning method using a vehicle-mounted central air source. First, it determines the presence of contaminant adhesion based on sensor feedback signals. If contaminants are present, in the first cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a first spray pressure and a first intermittent alternating frequency, and the sensor is checked again. If contaminants are still present, the spray pressure is increased in the next cycle. If contaminants are still present, the spray frequency is increased in the next cycle. This sensor-based air-blowing cleaning method, using a vehicle-mounted central air source, achieves a triple technical effect of precise cleaning, energy consumption optimization, and equipment protection through an innovative combination of progressive intensity adjustment and periodic pollution monitoring.

[0055] Based on the same inventive concept, this application also proposes a sensor-driven air-blowing cleaning system based on an on-board central air source, the system being configured as follows: At the beginning of the first cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors; If it is determined that contaminants are adhering at the beginning of the first cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a first spray pressure and a first intermittent alternation frequency during the first cycle. At the beginning of the second cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors; If it is determined that contaminants are adhering at the beginning of the second cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second spray pressure and a first intermittent alternating frequency during the second cycle, wherein the second spray pressure is greater than the first spray pressure. At the beginning of the third cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors. If it is determined that contaminants are adhering at the beginning of the third cycle, then during the third cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second spray pressure and a second alternating frequency, wherein the second alternating frequency is greater than the first alternating frequency.

[0056] In some implementations, the system is configured as follows: At the beginning of the fourth cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors. If it is determined that contaminants adhere at the beginning of the fourth cycle, then during the fourth cycle, the cleaning nozzle is controlled to spray cleaning gas towards the sensor at a second injection pressure and according to the first injection logic. The first injection logic is as follows: In the fourth cycle, the cleaning nozzle sprays intermittently, and the frequency of these intermittent sprays gradually increases over time.

[0057] In some implementations, the system is configured as follows: In the fourth cycle, the cleaning nozzle sprays intermittently, and the frequency of the alternating intervals gradually increases over time, satisfying the following: In the fourth cycle, the minimum value of the alternating frequency of the cleaning nozzles is less than the first alternating frequency, and the maximum value of the alternating frequency of the cleaning nozzles is greater than the second alternating frequency.

[0058] In conjunction with the first aspect, in some embodiments, if it is determined that contaminants adhere at the beginning of the fourth cycle, after controlling the cleaning nozzle to spray cleaning gas at a second spray pressure and a first spray logic in the fourth cycle, the following steps are included: At the beginning of the fifth cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors. If it is determined that contaminants are adhering at the beginning of the fifth cycle, an alarm signal will be output.

[0059] In some implementations, the system is configured as follows: The cleaning nozzle includes a first nozzle and a second nozzle arranged opposite to each other. If it is determined that contaminants are adhering at the beginning of the first cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas at a first spray pressure and a first intermittent alternation frequency during the first cycle, including: The first nozzle and the second nozzle simultaneously spray cleaning gas intermittently at a first intermittent alternation frequency. When the first nozzle is spraying gas, the second nozzle is in a spray stop interval, and when the second nozzle is spraying gas, the first nozzle is in a spray stop interval.

[0060] In some implementations, the system is configured as follows: The cleaning nozzles include a first nozzle and a second nozzle positioned opposite each other, and the method further includes: At the beginning of the fourth cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors. If it is determined that contaminants are adhering at the beginning of the fourth cycle, then during the fourth cycle, the first nozzle is controlled to intermittently spray clean gas onto the sensor at a second injection pressure and a first intermittent alternation frequency; and the second nozzle is controlled to intermittently spray clean gas onto the sensor at a second injection pressure and a second intermittent alternation frequency.

[0061] In some implementations, the system is configured as follows: Obtain the fundamental resonant frequency of the sensor surface; If contaminants are determined to be adhering at the beginning of the second cycle, then during the second cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second injection pressure and a first intermittent alternating frequency, satisfying the following: The fundamental resonant frequency is equal to the first intermittent alternation frequency.

[0062] In some implementations, the system is configured as follows: Obtain the surface temperature of the sensor; At the beginning of the fourth cycle, the adhesion of pollutants is determined based on the detection signals fed back by the sensors. If it is determined that contaminants are adhering at the beginning of the fourth cycle and the surface temperature is less than or equal to 0 degrees Celsius, then in the fourth cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a second spray pressure and a third intermittent alternation frequency, where the third intermittent alternation frequency is less than the first intermittent alternation frequency.

[0063] This application proposes a sensor-based air-blowing cleaning system using a vehicle-mounted central air source. First, it determines the presence of contaminants based on sensor feedback signals. If contaminants are present, in the first cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a first spray pressure and a first intermittent alternating frequency. The system is then checked again. If contaminants are still present, the spray pressure is increased in the next cycle. If contaminants are still present, the spray frequency is increased in the next cycle. This sensor-based air-blowing cleaning system, through an innovative combination of progressive intensity adjustment and periodic pollution monitoring, achieves a triple technical effect of precise cleaning, energy optimization, and equipment protection.

[0064] Based on the same inventive concept, embodiments of this application also propose an electronic device, which includes: At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the sensor blowing cleaning method based on an on-board central air source according to the embodiments of this application.

[0065] Furthermore, to achieve the above objectives, embodiments of this application also propose a computer-readable storage medium storing a computer program that, when executed by a processor, implements the sensor air-blowing cleaning method based on an on-board central air source according to embodiments of this application.

[0066] The following is a detailed introduction to the various components of the electronic device: In this context, the processor is the control center of the electronic device. It can be a single processor or a collective term for multiple processing elements. For example, a processor can be one or more central processing units (CPUs), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention, such as one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs).

[0067] Alternatively, the processor can perform various functions of the electronic device by running or executing software programs stored in memory and by calling data stored in memory.

[0068] The memory is used to store the software program that executes the solution of the present invention, and the execution is controlled by the processor. The specific implementation method can be referred to the above method embodiment, which will not be repeated here.

[0069] Optionally, the memory can be read-only memory (ROM) or other types of static storage devices capable of storing static information and instructions, random access memory (RAM) or other types of dynamic storage devices capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto. The memory can be integrated with the processor or exist independently and coupled to the processor through the interface circuit of the electronic device; the embodiments of the present invention do not specifically limit this.

[0070] A transceiver is used to communicate with network devices or with terminal devices.

[0071] Optionally, the transceiver may include a receiver and a transmitter. The receiver is used to implement the receiving function, and the transmitter is used to implement the sending function.

[0072] Optionally, the transceiver can be integrated with the processor or exist independently and coupled to the processor through the router's interface circuit. This embodiment of the invention does not specifically limit this.

[0073] Furthermore, the technical effects of the electronic device can be referred to the technical effects of the data transmission method in the above method embodiments, and will not be repeated here.

[0074] It should be understood that the processor in the embodiments of the present invention can be a central processing unit (CPU), or it can be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0075] It should also be understood that the memory in the embodiments of the present invention can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous DRAM (DDR SDRAM), enhanced synchronous DRAM (ESDRAM), synchronous linked DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0076] The above embodiments can be implemented, in whole or in part, by software, hardware (such as circuits), firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the flow or function according to the embodiments of the present invention is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. Computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., infrared, wireless, microwave, etc.) means. A computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more sets of available media. Available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media. Semiconductor media can be solid-state drives.

[0077] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural. Additionally, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects, but it can also represent an "and / or" relationship. Please refer to the context for a more accurate understanding.

[0078] In this invention, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of a single item or a plurality of items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be a single item or multiple items.

[0079] It should be understood that, in various embodiments of the present invention, the order of the above-mentioned process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0080] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

Claims

1. A method for sensor blow-off cleaning based on a vehicle-mounted central gas source, characterized in that, The method includes: At the beginning of the first cycle, the contaminant adhesion status is determined based on the detection signal fed back by the sensor; If it is determined that the contaminant is adhering at the beginning of the first cycle, then during the first cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a first spray pressure and a first intermittent alternation frequency. At the beginning of the second cycle, the adhesion status of the pollutants is determined based on the detection signal fed back by the sensor; If it is determined that the contaminant is adhering at the beginning of the second cycle, then during the second cycle, the cleaning nozzle is controlled to intermittently spray the cleaning gas onto the sensor at a second spray pressure and a first intermittent alternating frequency, wherein the second spray pressure is greater than the first spray pressure; At the beginning of the third cycle, the adhesion status of the pollutants is determined based on the detection signal fed back by the sensor. If it is determined that the contaminant is adhering at the beginning of the third cycle, then during the third cycle, the cleaning nozzle is controlled to intermittently spray the cleaning gas onto the sensor at a second spray pressure and a second alternating frequency, wherein the second alternating frequency is greater than the first alternating frequency. At the beginning of the fourth cycle, the adhesion status of the pollutants is determined based on the detection signal fed back by the sensor. If it is determined that the contaminant is adhered at the beginning of the fourth cycle, then during the fourth cycle, the cleaning nozzle is controlled to spray the cleaning gas toward the sensor at a second spray pressure and a first spray logic, wherein the first spray logic is: In the fourth cycle, the cleaning nozzle sprays intermittently, and the alternation frequency of the intermittent sprays gradually increases over time, including: In the fourth cycle, the minimum value of the alternating intermittent frequency of the cleaning nozzle is less than the first intermittent alternating frequency, and the maximum value of the alternating frequency of the cleaning nozzle is greater than the second alternating intermittent frequency.

2. The method of claim 1, wherein, If it is determined that the contaminant is adhered at the beginning of the fourth cycle, then after controlling the cleaning nozzle to spray the cleaning gas at a second spray pressure and a first spray logic in the fourth cycle, the process includes: At the beginning of the fifth cycle, the adhesion status of the pollutants is determined based on the detection signal fed back by the sensor; If it is determined that the contaminant is adhered at the beginning of the fifth cycle, an alarm signal is output.

3. The method of claim 1, wherein, The cleaning nozzle includes a first nozzle and a second nozzle arranged opposite to each other. If it is determined that the contaminant is adhered at the beginning of the first cycle, then during the first cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas at a first spray pressure and a first intermittent alternation frequency, including: The first nozzle and the second nozzle simultaneously spray the cleaning gas intermittently at a first intermittent alternation frequency, and when the first nozzle sprays gas, the second nozzle is in a spray stop interval, and when the second nozzle sprays gas, the first nozzle is in a spray stop interval.

4. The method of claim 1, wherein, The cleaning nozzle includes a first nozzle and a second nozzle disposed opposite to each other, and the method further includes: At the beginning of the fourth cycle, the adhesion status of the pollutants is determined based on the detection signal fed back by the sensor. If it is determined that the contaminant is adhering at the beginning of the fourth cycle, then during the fourth cycle, the first nozzle is controlled to intermittently spray the cleaning gas onto the sensor at the second spray pressure and the first intermittent frequency; and the second nozzle is controlled to intermittently spray the cleaning gas onto the sensor at the second spray pressure and the second intermittent frequency.

5. The method of claim 1, wherein, The method includes: Obtain the fundamental resonant frequency of the sensor surface; If it is determined that the contaminant adheres at the beginning of the second cycle, then during the second cycle, the cleaning nozzle is controlled to intermittently spray the cleaning gas onto the sensor at the second spray pressure and the first intermittent alternation frequency, satisfying: The fundamental resonant frequency is equal to the first intermittent alternating frequency.

6. The method of claim 1, wherein, The method further includes: The surface temperature of the sensor is obtained; At the beginning of the fourth cycle, the adhesion status of the pollutants is determined based on the detection signal fed back by the sensor. If it is determined that the contaminant is adhered at the beginning of the fourth cycle and the surface temperature is less than or equal to 0 degrees Celsius, then in the fourth cycle, the cleaning nozzle is controlled to intermittently spray the cleaning gas onto the sensor at a second spray pressure and a third intermittent alternation frequency, wherein the third intermittent alternation frequency is less than the first intermittent alternation frequency; If it is determined that the contaminant is adhered at the beginning of the fourth cycle and the surface temperature is greater than 50 degrees Celsius, then in the fourth cycle, the cleaning nozzle is controlled to intermittently spray the cleaning gas onto the sensor at a second spray pressure and a fourth intermittent alternating frequency, wherein the fourth intermittent alternating frequency is greater than the second intermittent alternating frequency.

7. A sensor air-blowing cleaning method based on a vehicle-mounted central air source according to claim 6, characterized in that, The third intermittent alternation frequency is greater than 0.5 Hz and less than 2 Hz, and the fourth intermittent alternation frequency is greater than 5 Hz and less than 10 Hz.

8. A sensor-blowing cleaning system based on a vehicle-mounted central air source, characterized in that, For performing the sensor air-blowing cleaning method based on an on-board central air source as described in claim 1, the sensor air-blowing cleaning system based on the on-board central air source is configured as follows: At the beginning of the first cycle, the contaminant adhesion status is determined based on the detection signal fed back by the sensor; If it is determined that the contaminant is adhering at the beginning of the first cycle, then during the first cycle, the cleaning nozzle is controlled to intermittently spray cleaning gas onto the sensor at a first spray pressure and a first intermittent alternation frequency. At the beginning of the second cycle, the adhesion status of the pollutants is determined based on the detection signal fed back by the sensor; If it is determined that the contaminant is adhering at the beginning of the second cycle, then during the second cycle, the cleaning nozzle is controlled to intermittently spray the cleaning gas onto the sensor at a second spray pressure and a first intermittent alternating frequency, wherein the second spray pressure is greater than the first spray pressure; At the beginning of the third cycle, the adhesion status of the pollutants is determined based on the detection signal fed back by the sensor. If it is determined that the contaminant is adhering at the beginning of the third cycle, then during the third cycle, the cleaning nozzle is controlled to intermittently spray the cleaning gas onto the sensor at a second spray pressure and a second alternating frequency, wherein the second alternating frequency is greater than the first alternating frequency.

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