CN212349726U

CN212349726U - Dust removing device

Info

Publication number: CN212349726U
Application number: CN201922024627.1U
Authority: CN
Inventors: 林烨峰; 马祖亮
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2021-01-15
Anticipated expiration: 2029-11-21
Also published as: WO2021098209A1

Abstract

The embodiment of the application discloses a dust removal device for realizing the dust removal of an optical window in optical equipment. This dust collector includes: the air pump comprises a controller, an on-off module, an air storage cylinder and an air pump which are sequentially connected through an air path, wherein the on-off module comprises an air outlet; after carrying out the pressure boost through the air pump and aerifing the air receiver, the air current after using the pressure boost to aerify blows to the optics window, realizes carrying out the process of removing dust to the optics window of optical equipment, compares with the mode that carries out mechanical friction dust removal to the optics window among the prior art, and this dust collector can avoid carrying out the damage that mechanical friction leads to producing the optics window with the optics window, can delay optical equipment's life to a certain extent.

Description

Dust removing device

Technical Field

The application relates to the technical field of optics, by it relates to a dust collector.

Background

With the development of vision sensing technology and automatic driving technology, various security monitoring cameras, laser radars and other optical devices are widely applied. When the optical equipment works outdoors, due to the fact that the outdoor application environment is severe, water vapor, dust, liquid suspended matters and the like are filled in the air, after the optical equipment is used for a period of time, an optical window outside the optical equipment is exposed in the outdoor environment, more foreign matters such as dust and the like can be gathered by the optical window, and accordingly optical parameters are poor, for example, video quality of a camera is poor, and three-dimensional scanning accuracy of a laser radar is poor.

In the prior art, general solution is usually that the manual work regularly cleans, perhaps realizes in order to use manpower sparingly installing the windscreen wiper, and wherein, the scheme of installing the windscreen wiper sets up the windscreen wiper at the outside optical window of optical equipment, and the rainy day is collected the raindrop on the optical window after, starts the windscreen wiper and removes water incidentally and remove dust, and in the application scene that the rainwater is less, then through external storage water tank, the water pump starts the windscreen wiper after spraying water and carries out the optical window cleanness.

To the scheme of installation windscreen wiper, need the windscreen wiper to carry out mechanical friction to the optics window of optical equipment front end and realize the dust removal effect, however, this kind of mechanical friction carries out the mode of removing dust and can cause irreversible damage to the optics window after going on many times for the image information that optical equipment gathered through this optics window receives the influence, leads to optical equipment's life greatly reduced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a dust removal device for realize the dust removal to the optics window among the optical equipment.

The first aspect of the embodiment of the application provides a dust collector, can be applied to optical equipment, for example security protection surveillance camera machine, laser radar etc., this optical equipment includes the optics window, because these optical equipment are when being applied to the open air, because outdoor environment is abominable, fill steam in the air, dust, liquid suspended solid etc., after using a period, the outside optics window of optical equipment exposes in outdoor environment, this optics window can gather foreign matters such as more dust, lead to optical parameter variation, like camera video quality variation, laser radar three-dimensional scanning precision variation etc., this moment, realize the dust removal of this optics window through this dust collector, wherein, this dust collector includes: the air pump comprises a controller, an on-off module, an air storage cylinder and an air pump which are sequentially connected through an air path, wherein the on-off module comprises an air outlet; the dust removal device specifically comprises an air inflation process and an air blowing process of the air storage cylinder when the optical window is subjected to dust removal, in the air inflation process, the air outlet is adjusted to be closed by the on-off module under the control of the controller, and the air pump is used for pressurizing and inflating the air storage cylinder under the control of the controller; and then, in the blowing process, the air outlet is adjusted to be opened by the on-off module under the control of the controller, so that the pressurized and inflated air in the air storage cylinder is blown to the optical window through the air outlet. Thereby, carry out the pressure boost through the air pump to the air receiver and aerify after, use the air current after the pressure boost is aerifyd to the optics window, realize carrying out the process of removing dust to the optics window of optical equipment, compare with the mode that carries out mechanical friction dust removal to the optics window among the prior art, this dust collector can avoid carrying out the damage that mechanical friction leads to producing the optics window with the optics window, can delay optical equipment's life to a certain extent.

It should be noted that the on-off module can be a common industrial device for pneumatic control, that is, an automatic basic element for controlling fluid, and in a specific implementation, the on-off module can be a solenoid valve, a pneumatic valve, an electric valve or other devices for controlling on-off of gas, which is not limited herein.

In a possible implementation manner of the first aspect of the embodiment of the present application, the controller of the dust removing device may be directly integrated in the optical apparatus, that is, the controller is included in a processor in the optical apparatus, and the controller of the dust removing device may be directly implemented by the processor in the optical apparatus.

In a possible implementation manner of the first aspect of the embodiment of the present application, the controller of the dust removing device may be separately arranged with respect to a processor of the optical apparatus, that is, the optical apparatus includes the processor, where the controller is connected to the processor, and the controller controls an on-off module in the dust removing device and an operation state of the air pump under the control of the processor, that is, the controller controls the on-off module and the air pump to perform an air inflation process and an air blowing process on the air reservoir according to instructions sent by the processor. For the existing optical equipment, after the dust removal device is additionally arranged, the controller of the dust removal device and the processor of the optical equipment are separately arranged, so that the operation pressure of the processor in the optical equipment can be reduced, and the interference of the dust removal process on the control of the optical equipment is reduced to a certain extent.

In a possible implementation manner of the first aspect of the embodiment of the present application, the dust removing device may be directly integrated inside the optical device, that is, the on-off module, the air reservoir and the air pump are disposed inside the optical device, so that the dust removing device and the optical device are integrally disposed, the total volume of the device is reduced, the distance between the air outlet of the on-off module and the optical window is conveniently shortened, and a more excellent air blowing and dust removing effect is achieved.

In a possible implementation manner of the first aspect of the embodiment of the present application, in a scheme that the dust removing device is directly integrated inside the optical device, the air outlet may be telescopically disposed in the optical device, wherein the air outlet of the on-off module may extend out in the air blowing process, and the air outlet may be retracted into the optical device in the non-air blowing process, so as to achieve a wind-proof and water-proof effect of the dust removing device.

In a possible implementation manner of the first aspect of the embodiment of the present application, in a scheme that the dust removing device is directly integrated inside the optical device, the on-off module and the air pump cannot avoid certain vibration and noise during operation, and therefore, a buffer module may be additionally disposed in the dust removing device, where the buffer module includes a first buffer module and/or a second buffer module, and the first buffer module and the second buffer module may be integrally designed or may not be integrally designed. Specifically, the dust removal device also comprises a first buffer module connected to the air pump; and/or the dust removal device also comprises a second buffer module connected with the on-off module, so that vibration reduction and noise reduction of the air pump and the on-off module are realized, and the influence on the work of the optical equipment is reduced.

In a possible implementation manner of the first aspect of the embodiment of the present application, the dust removing device may be additionally disposed outside the optical device, wherein the on-off module, the air cylinder, and the air pump are externally disposed outside the optical device, and for the existing optical device, only simple modification is required, and the dust removal of the optical window can be achieved by adding these components.

In a possible implementation manner of the first aspect of the embodiment of the present application, the air pump pressurizes and inflates the air reservoir to an air pressure of 120 to 250 kpa under the control of the controller, that is, in order to achieve a good effect of removing foreign matters such as dust on the optical window, the air pump may pressurize and inflate the air reservoir to an air pressure of 120 to 250 kpa during the inflation process.

In a possible implementation manner of the first aspect of the embodiment of the present application, the air pump pressurizes and inflates the inside of the air reservoir to an air flow rate of 0.5 liters per minute to 8 liters per minute under the control of the controller, so that a good removing effect on foreign matters such as dust on the optical window can be achieved.

In a possible implementation manner of the first aspect of the embodiment of the present application, in order to reduce an influence of the air blowing process on the optical device and increase a service life of the dust removing device to a certain extent, the dust removing device further includes an air inlet filter screen disposed on the air pump; and/or an air outlet filter screen arranged at the air outlet.

According to the technical scheme, the embodiment of the application has the following advantages: this dust collector includes: the air pump comprises a controller, an on-off module, an air storage cylinder and an air pump which are sequentially connected through an air path, wherein the on-off module comprises an air outlet; the dust removal device specifically comprises an air inflation process and an air blowing process of the air storage cylinder when the optical window is subjected to dust removal, in the air inflation process, the air outlet is adjusted to be closed by the on-off module under the control of the controller, and the air pump is used for pressurizing and inflating the air storage cylinder under the control of the controller; and then, in the blowing process, the air outlet is adjusted to be opened by the on-off module under the control of the controller, so that the pressurized and inflated air in the air storage cylinder is blown to the optical window through the air outlet. Thereby, carry out the pressure boost through the air pump to the air receiver and aerify after, use the air current after the pressure boost is aerifyd to the optics window, realize carrying out the process of removing dust to the optics window of optical equipment, compare with the mode that carries out mechanical friction dust removal to the optics window among the prior art, this dust collector can avoid carrying out the damage that mechanical friction leads to producing the optics window with the optics window, can delay optical equipment's life to a certain extent.

Drawings

FIG. 1 is a schematic view of a mechanical dust removing apparatus;

FIG. 2 is a schematic view of an embodiment of a dust removing apparatus according to the present application;

FIG. 3 is another schematic view of an embodiment of a dust removing apparatus according to the present application;

FIG. 4 is another schematic view of an embodiment of a dust extraction apparatus according to an embodiment of the present disclosure;

FIG. 5 is another schematic view of an embodiment of a dust extraction apparatus according to an embodiment of the present disclosure;

FIG. 6 is another schematic view of an embodiment of a dust extraction apparatus according to an embodiment of the present disclosure;

FIG. 7 is another schematic view of an embodiment of a dust extraction apparatus according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of an embodiment of a dust removal method in an embodiment of the present application;

FIG. 9 is another schematic diagram of an embodiment of a dust removal method in an embodiment of the present application;

FIG. 10 is a schematic diagram of an embodiment of a controller according to the present application;

fig. 11 is another schematic diagram of an embodiment of a controller according to the present application.

Detailed Description

The embodiment of the application provides a dust removal device and a dust removal method, which are used for realizing dust removal of an optical window in optical equipment.

With the development of vision sensing technology and automatic driving technology, various security monitoring cameras, laser radars and other optical devices are widely applied. When the optical equipment works outdoors, due to the fact that the outdoor application environment is severe, water vapor, dust, liquid suspended matters and the like are filled in the air, after the optical equipment is used for a period of time, an optical window outside the optical equipment is exposed in the outdoor environment, more foreign matters such as dust and the like can be gathered by the optical window, and accordingly optical parameters are poor, for example, video quality of a camera is poor, and three-dimensional scanning accuracy of a laser radar is poor. In the prior art, general solution is usually that the manual work regularly cleans, perhaps realizes in order to use manpower sparingly installing the windscreen wiper, and wherein, the scheme of installing the windscreen wiper sets up the windscreen wiper at the outside optical window of optical equipment, and the rainy day is collected the raindrop on the optical window after, starts the windscreen wiper and removes water incidentally and remove dust, and in the application scene that the rainwater is less, then through external storage water tank, the water pump starts the windscreen wiper after spraying water and carries out the optical window cleanness.

For the scheme of installing the wiper, the wiper needs to perform mechanical friction on the optical window at the front end of the optical device to achieve a dust removal effect, as shown in fig. 1, in the scheme, the optical device 20 includes the optical window 201 and the wiper 202 connected to the water storage tank 10 through a water path, in the using process, the water is sprayed through the water storage tank 10 and the outer surface of the optical window 201 is wiped by combining the wiper 202, however, the mode of performing dust removal through mechanical friction may cause irreversible damage to the optical window after being performed for many times, so that the image information acquired by the optical device through the optical window is affected, and the service life of the optical device is greatly reduced. Therefore, the embodiment of the application provides a dust removal device and a dust removal method, which are used for realizing the process of removing dust from an optical window of an optical device, and compared with the mode of removing dust from the optical window by mechanical friction in the prior art, the dust removal device can also avoid the damage to the optical window caused by mechanical friction with the optical window, and can delay the service life of the optical device to a certain extent.

The following description will be specifically described with reference to the accompanying drawings, fig. 2 is a dust removing device in the embodiment of the present application, which may be applied to an optical device 20, for example, the optical device 20 may be a security monitoring camera, a laser radar, and the like, where the optical device 20 includes an optical window 201, and since the optical device 20 is directly exposed in the air when in use, and the air is filled with water vapor, dust, liquid suspended matters, and the like, after a period of use, the optical window 201 outside the optical device 20 is exposed in an outdoor environment, and the optical window 201 may collect many foreign matters such as dust, and cause a deterioration of optical parameters, such as a deterioration of video quality of a camera, a deterioration of three-dimensional scanning accuracy of a laser radar, and at this time, the dust removing device 10 may be implemented by using the dust removing device 10, where the dust removing device 10 includes:

the air pump system comprises a controller 101, an on-off module 102, an air reservoir 103 and an air pump 104 which are connected in sequence through an air path, wherein the on-off module comprises an air outlet 1021; the dust removal device 10 specifically comprises an air inflation process and an air blowing process for the air storage cylinder 103 when removing dust for the optical window 201, wherein in the air inflation process, the on-off module 102 adjusts the air outlet 1021 to be closed under the control of the controller 101, and the air pump 104 pressurizes and inflates the air storage cylinder 103 under the control of the controller 101; then, in the blowing process, the on-off module 102 adjusts the air outlet 1021 to be opened under the control of the controller 101, so that the pressurized and inflated air in the air reservoir 103 is blown to the optical window 201 through the air outlet 1021. Therefore, after the air cylinder 103 is pressurized and inflated by the air pump 103, the airflow after pressurization and inflation is blown to the optical window 201, and the process of removing dust of the optical window 201 of the optical device 20 is achieved.

In this embodiment, it should be noted that the on-off module 102 may be a common industrial device for pneumatic control, that is, an automatic basic element for controlling fluid, and in terms of specific implementation, may be a solenoid valve, a pneumatic valve, an electric valve, or other devices for controlling on-off of gas, which is not limited herein, and in the following embodiments, only a solenoid valve is taken as an example for describing an implementation manner of the on-off module 102. In addition, the air pump 104 may be a micro air pump, the working medium is gaseous, and the air pump is mainly used for a gas conveying device with multiple purposes such as gas sampling, gas circulation, vacuum adsorption, vacuum pressure maintaining, air pumping, pressurization, and the like, and is divided into the following parts according to the purposes: a micro negative pressure pump, a micro vacuum pump, a micro gas circulating pump, a micro gas sampling pump, a micro inflating pump, a micro air suction pump, a micro air pumping and inflating dual-purpose pump and the like; according to the working principle, the device is divided into a diaphragm type, an electromagnetic type, an impeller type, a piston type and the like.

In the embodiment of the present application, a power supply is indispensable in the implementation process of the dust removing device 10, and specifically, the implementation of the dust removing device 10 and the optical device (optical facility) 20 may be as shown in fig. 3, where the controller 101 and the power supply of the dust removing device 10 may be directly integrated in the power supply of the optical device 20 and the system main control 202, that is, the controller 101 is included in a processor in the optical device 20, the control of the dust removing device may be directly implemented by the processor in the optical device 20, and for the existing optical device 20, after the dust removing device 10 is installed, a control program of the dust removing device 10 may be directly written in the processor of the optical device 20.

At this time, based on the embodiment shown in fig. 3, the dust removing device 10 may be further directly integrated inside the optical device 20, as shown in fig. 4, the on-off module (electromagnetic valve) 102, the air cylinder 103 and the air pump 104 are built inside the optical device 20, that is, are disposed inside the housing of the optical device 20, so that the dust removing device 10 and the optical device 20 are integrally disposed, the volume of the overall device is reduced, the distance between the air outlet 1021 of the on-off module 102 and the optical window 201 is conveniently shortened, and a more excellent air blowing and dust removing effect is achieved. Wherein, the air outlet 1021 in the on-off module 102 can be telescopically arranged in the optical device 20, wherein the air outlet 1021 of the on-off module 102 can be extended out in the air blowing process, and the air outlet 1021 can be retracted into the optical device 20 in the non-air blowing process, so as to achieve the wind-proof and water-proof effects of the dust removing device 10.

In this embodiment, based on fig. 4, the dust removing device 10 is directly integrated into the optical device 20, and the on-off module 102 and the air pump 104 cannot avoid generating certain vibration and noise when operating, so that a buffering module may be additionally disposed in the dust removing device 10, where the buffering module includes a first buffering module and/or a second buffering module, where the first buffering module and the second buffering module may be integrally designed or may not be integrally designed. Specifically, the dust removing device 10 further includes a first buffer module connected to the air pump 104; and/or, the dust removing device 10 further comprises a second buffer module connected to the on-off module 102, so as to achieve vibration reduction and noise reduction of the air pump 104 and the on-off module 102, and reduce the influence on the operation of the optical equipment 20.

Besides, in addition to the embodiment shown in fig. 3, in a specific implementation of the dust removing device 10, the controller 101 and the power supply of the dust removing device 10 may also be separately arranged with respect to the power supply of the optical device and the system main control 202, that is, the optical device 20 includes a processor, and the processor is located inside the power supply and the system main control 202, wherein the controller 101 is connected with the processor, and the controller 101 controls the on-off module 102 and the air pump 104 in the dust removing device 10 under the control of the processor, that is, the controller 101 controls the on-off module 102 and the air pump 104 to perform the air inflation process and the air blowing process on the air reservoir 103 according to instructions sent by the processor. For the existing optical device 20, after the dust removing device 10 is installed, the controller 103 of the dust removing device 10 and the processor of the optical device 20 are separately arranged, so that the operation pressure of the processor in the optical device 20 can be reduced, and the interference of the dust removing process on the optical signal acquisition process of the optical device 20 itself is reduced to a certain extent. Based on this, other components of the dust removing device 10 can be additionally arranged outside the optical device 20, wherein the on-off module 102, the air cylinder 103 and the air pump 104 are arranged outside the optical device 20, and the dust removal of the optical window 201 can be realized by adding these components only by simple modification to the existing optical device 20.

In the embodiment of the present application, based on the foregoing description of the structure of the dust removing device 10 and the optical device 20 in fig. 3, a control process of the dust removing device 10 is described below from the perspective of a specific circuit implementation, please refer to fig. 5, a main control system 202 may directly use a processor of the optical device or a controller additionally provided to the dust removing device to implement control of the electromagnetic valve 102 and the air pump 104, wherein specifically, the processor may implement up-down control of the air pump 104 and the electromagnetic valve 102 by using a general purpose input/output (GPIO) of the processor or the controller to cooperate with the driving circuit 50, and in the process of implementation, after detecting that video quality is degraded due to foreign matters such as dust accumulation in a glass of the optical window 201 or flying insects, the processor controls the air pump 104 and the electromagnetic valve 102 to automatically remove dust, so as to effectively solve the video quality degradation caused by long-term dust accumulation and require manual regular wiping maintenance or mechanical dust removal for the optical device The service life is influenced, etc.

Based on the structure shown in fig. 5, specifically, the implementation diagram of the dust removing device 10 can be referred to fig. 6, where the controller 101 located in the main control system 202 controls the operating states of the electromagnetic valve 102 and the air pump 104 through the driving circuit 50, and when it is determined that the dust removing device 10 needs to be used to remove dust from the optical window 201 in the optical device 20 (for example, when it is determined that the optical window 201 has dust or foreign matter, when the dust removing operation is performed periodically, or when an instruction sent by a user terminal is received), the main control system controls the controller 101 in the main control system 202 to control the electromagnetic valve 102 and the air pump 104 to perform an inflation process and a blowing process through the driving circuit 50, where the air outlet 1201, the electromagnetic valve 102, the air reservoir 103, and the air pump 104 are connected by the air tube 40, and during the inflation process, the air outlet 1021 at the end of the electromagnetic valve 102 is closed, the air pump 104 is operated, and the air pump 104 is inflated to a specified air pressure and/ The amount of the air is determined to complete the inflation process, and during the blowing process, the air pump 104 stops working, and the air outlet 1021 at the end of the electromagnetic valve 102 is opened to blow the pressurized air in the air reservoir to the optical window 201 in the optical device 20. In order to reduce the influence of the blowing process on the optical device 20 and to increase the service life of the dust removing device 10 to some extent, an air inlet screen 1041 disposed on the air pump 104 is further included in the dust removing device 10; and/or the air outlet filter screen arranged at the air outlet 1021 can filter the air entering and exiting the dust removal device 10, so as to prevent dust from affecting the service life and the tightness of the air pump 104 and the electromagnetic valve 102, and can be selected and matched when the air quality is better.

As a preferred embodiment, in order to achieve a good removing effect on the dust and other foreign matters on the optical window 201, the air pump 104 may pressurize and inflate the air cylinder 103 to an air pressure of 120 to 250 kpa under the control of the controller 101 during the inflation process, and/or the air pump 104 may pressurize and inflate the inside of the air cylinder 103 to an air flow of 0.5 to 8 liters per minute under the control of the controller 101. Specifically, the air flow rate of the air pump is generally inversely proportional to the air blowing pressure, and as shown in the graph of fig. 7, the air flow rate of the air pump reaches 4.5 Liters Per Minute (LPM) at about 0 pressure difference; at a differential pressure of 1 atmosphere (750mmHg), the air flow rate is only about 0.5LPM, and it is difficult to achieve high-pressure air flow by the air pump/blower alone for good dust removal. In this embodiment, the maximum differential pressure gas storage capacity of the air pump 104 can be realized by the pressurization of the gas storage cylinder 103, and by taking fig. 7 as an example, the gas storage cylinder 103 with a volume of 250ml is matched, and the aperture of the gas blowing port 1021 is 2 mm: after the pressurization and air storage are finished, the instantaneous pressure difference is 1 atmospheric pressure, the instantaneous theoretical maximum flow rate can exceed 50m/s (equivalent to 37.7LPM), the effective air blowing time can reach 50ms, and the larger the volume of the air storage cylinder is, the longer the effective air blowing time is. The dust removal effect depends on the maximum wind pressure and the duration, a large wind pressure and a certain duration are realized, and a plurality of circulation processes can be controlled by matching with the controller 101: the air inflation process, the air blowing process and the like are carried out for multiple times, the cycle period is about 10 to 30s (according to the specification and the air storage capacity of the air pump), and the cycle is carried out for 3 to 5 times, so that the good air blowing and dust removing effects are achieved.

The dust removing device in the embodiment of the present application is introduced above, and a control method implemented by the controller in the dust removing device is described below.

Referring to fig. 8, in the process of performing a dust removal method using the dust removal device according to the embodiment of the present application, the dust removal device is applied to optical equipment, such as a security surveillance camera, a laser radar, and the like, where the optical equipment includes an optical window, and when the optical equipment is applied outdoors, because the outdoor environment is harsh, the air is filled with water vapor, dust, liquid suspended matters, and the like, after the optical equipment is used for a period of time, the optical window outside the optical equipment is exposed in the outdoor environment, and the optical window may collect many foreign matters such as dust, which may cause deterioration of optical parameters, such as deterioration of video quality of the camera, deterioration of three-dimensional scanning precision of the laser radar, and at this time, the dust removal of the optical window is implemented by using the dust removal method:

801. the controller acquires a dust removal instruction;

in this embodiment, the controller obtains the dust removal instruction, specifically, the controller is included in the dust collector, and the dust collector includes break-make module, air receiver and the air pump that loop through the gas circuit connection, and wherein, this break-make module includes the gas outlet.

802. The controller executes an inflation process and a blowing process according to the dust removal instruction;

in this embodiment, after the dust removal instruction is obtained in step 801, the controller executes an inflation process and a blowing process according to the dust removal instruction, wherein in the inflation process, the controller controls the on-off module to close the air outlet and controls the air pump to pressurize and inflate the air reservoir; in the air blowing process, after the air storage cylinder is pressurized and inflated, the controller controls the on-off module to adjust the air outlet to be closed, so that the pressurized and inflated air in the air storage cylinder is blown to the optical window through the air outlet. Therefore, after the air storage cylinder is pressurized and inflated through the air pump, the air flow after the air storage cylinder is pressurized and inflated is blown to the optical window, the process of removing dust of the optical window of the optical equipment is achieved, compared with the mode of removing dust of the optical window through mechanical friction in the prior art, the dust removing method can avoid damage to the optical window caused by mechanical friction with the optical window, and the service life of the optical equipment can be prolonged to a certain extent.

In this embodiment, it should be noted that the on-off module may be a common industrial device for pneumatic control, that is, an automatic basic element for controlling fluid, and in terms of specific implementation, may be a solenoid valve, a pneumatic valve, an electric valve, or other devices for controlling on-off of gas, which is not limited herein, and in the following embodiments, only a solenoid valve is taken as an example of an implementation manner of the on-off module 102. In addition, the air pump can be a miniature air pump of adaptation, and the working medium is the gaseous state, and the gas delivery device that mainly used multiple usage such as gas sampling, gas circulation, vacuum adsorption, vacuum pressure maintaining, bleed, inflate, pressure boost divides into according to the usage: a micro negative pressure pump, a micro vacuum pump, a micro gas circulating pump, a micro gas sampling pump, a micro inflating pump, a micro air suction pump, a micro air pumping and inflating dual-purpose pump and the like; according to the working principle, the device is divided into a diaphragm type, an electromagnetic type, an impeller type, a piston type and the like.

In a possible implementation manner, the controller of the dust removing device may be separately arranged with respect to the processor of the optical apparatus, that is, the optical apparatus includes the processor, wherein the controller is connected with the processor, and the process of acquiring the dust removing instruction by the controller may specifically include: the controller receives a dust removal instruction sent by a processor, wherein the processor is contained in the optical equipment, and the dust removal instruction is used for instructing the processor to determine that an optical signal acquired by the optical equipment has an abnormality. For the existing optical equipment, after the dust removal device is additionally arranged, the controller of the dust removal device and the processor of the optical equipment are separately arranged, so that the operation pressure of the processor in the optical equipment can be reduced, and the interference of the dust removal process on the control of the optical equipment is reduced to a certain extent.

In a possible implementation manner, the controller of the dust removing device may be directly integrated in the optical apparatus, that is, the controller is included in a processor in the optical apparatus, where the process of acquiring the dust removing instruction by the controller specifically may include: the controller acquires an optical signal acquired by the optical equipment; when it is determined that there is an abnormality in the optical signal, the controller generates the dust removal instruction. Therefore, for the existing optical equipment, after the dust removing device is installed, the control program of the dust removing device can be directly written in the processor of the optical equipment, that is, the processor of the optical equipment can be directly used for controlling the dust removing device to execute the corresponding dust removing method.

In a possible implementation manner, the controller may be directly connected to a terminal through a wired/wireless connection, where the terminal may be a mobile phone, a computer, a server, or other devices for controlling the dust removing device, and the process of acquiring the dust removing instruction by the controller may further include: the controller receives the dust removal instruction sent by the terminal equipment, so that the controller executes the dust removal method according to the dust removal instruction sent by the terminal equipment, namely, the remote control of the dust removal device can be realized through the connection terminal, and the flexibility of control application is further improved.

In a possible implementation manner, the dust removal method may further include, specifically in the inflation process, when the controller determines that the air pump pressurizes and inflates the air reservoir to a preset air pressure value, the controller determines that the inflation process is completed, that is, the air reservoir is pressurized and inflated to a preset air pressure value, that is, when the controller determines that the air reservoir is pressurized and inflated to a preset air pressure value, the air pressure inside the air reservoir may satisfy a dust removal effect on the optical window, and at this time, it is determined that the air reservoir is pressurized and inflated to a completion, and a subsequent air blowing process may be performed.

In a possible implementation manner, the dust removal method may further include, specifically in the inflation process, when the controller determines that the air pump pressurizes and inflates the air reservoir until the air flow is a preset air flow value, the controller determines that the inflation process is completed, that is, the air reservoir is pressurized and inflated, that is, when the controller determines that the air reservoir is pressurized and inflated until the air pressure is the preset air flow value, the air flow inside the air reservoir may satisfy a dust removal effect on the optical window, and at this time, it is determined that the air reservoir is pressurized and inflated, and a subsequent air blowing process may be performed.

In one possible implementation manner, the dust removal instruction includes an execution cycle and/or an execution number, and the controller performs the inflation process and the blowing process according to the dust removal instruction includes: the controller executes the inflation process and the blowing process according to the execution period and/or the execution times, namely the controller can execute the inflation process and the blowing process for multiple times according to the control instruction, so that the multiple inflation processes and the blowing processes can be executed on the optical window, and the dust removal effect which is better than that of the air blowing by a single air pump can be realized.

In this embodiment, the dust removing method may be further improved on the basis of fig. 8 as an implementation process in fig. 9, where it can be obtained by combining the foregoing description, and the controller of the dust removing device may be directly integrated into a processor of the optical device, or may be implemented independently of the processor of the optical device, and in this embodiment, only the former is taken as an example for description, and specifically in fig. 9, the dust removing method implemented by the controller includes:

901. signal acquisition, namely optical signal acquisition is carried out by the optical equipment according to a normal flow;

902. detecting whether the window signal is normal, namely a processor in the optical equipment judges whether the optical signal acquired by the optical window is normal, if so, continuing to execute the step 901, otherwise, executing the step 905 to start a dust removal device to remove dust;

903. timed dust removal, that is, a processor in the optical device may set a timing program, for example, specify a preset time interval (e.g., 24 hours, 10 hours, 1 hour, etc.), execute step 905, start the dust removal device to remove dust;

904. manually controlling dust removal, namely, connecting the optical equipment with a user terminal and performing data interaction, and executing step 905 to start a dust removal device to remove dust when a dust removal instruction issued by the user terminal is received;

905. starting dust removal, starting dust removal according to the dust removal instruction issued in step 902/903/904, and setting parameters corresponding to the dust removal process, such as the execution times and the execution period of the air inflation process and the air blowing process;

906. the air pump works, and the inflation process is executed according to the starting of the step 905, namely the air pump works to pressurize and inflate the air reservoir;

907. the electromagnetic valve works, and the air blowing process is executed according to the starting of the step 905, namely the electromagnetic valve works to blow the pressurized and inflated air of the air cylinder to an optical window in the optical equipment through the air blowing port;

908. after the dust removal is completed, the dust removal process corresponding to the dust removal command is completed, and the step 902 may be executed again.

The dust removal method implemented by the controller is described above, and the controller provided by the embodiment of the application is described below with reference to the accompanying drawings.

Referring to fig. 10, an embodiment of the present application provides a controller 1000 applied to an optical apparatus, where the optical apparatus includes an optical window, and the controller 1000 includes an obtaining unit 1001 and an executing unit 1002;

the acquisition unit 1001 is used for acquiring a dust removal instruction, the controller is contained in a dust removal device, and the dust removal device comprises an on-off module, an air storage cylinder and an air pump which are sequentially connected through an air path, wherein the on-off module comprises an air outlet;

the execution unit 1002 is configured to execute an inflation process and a blowing process according to the dust removal instruction, and in the inflation process, the controller controls the on-off module to close the air outlet and controls the air pump to pressurize and inflate the air reservoir; in the air blowing process, after the air storage cylinder is pressurized and inflated, the controller controls the on-off module to adjust the air outlet to be closed, so that the pressurized and inflated air in the air storage cylinder is blown to the optical window through the air outlet.

As a preferred embodiment, the obtaining unit 1001 is specifically configured to:

and receiving a dust removal instruction sent by a processor, wherein the processor is contained in the optical equipment, and the dust removal instruction is used for instructing the processor to determine that the optical signal acquired by the optical equipment has an abnormality.

acquiring an optical signal acquired by the optical equipment;

and when the optical signal is determined to have the abnormality, generating the dust removal instruction.

and receiving a dust removal instruction sent by the terminal equipment.

As a preferred embodiment, the controller further comprises:

a determining unit 1003, configured to, during the inflation process, when it is determined that the air pump pressurizes and inflates the air reservoir until the air pressure is a preset air pressure value, determine that the inflation process is completed by the controller.

As a preferred embodiment, the controller further comprises:

a determining unit 1003, configured to, during the inflation process, when it is determined that the air pump pressurizes and inflates the air reservoir until the air flow rate is a preset air flow rate value, determine that the inflation process is completed by the controller.

As a preferred embodiment, the dust removal instruction includes an execution cycle and/or an execution number, and the execution unit 1002 is specifically configured to:

the inflation process and the blowing process are performed according to the execution period and/or the execution number.

It should be noted that, for details of information interaction, execution process, and the like among the units of the controller 1000, reference may be made to the description in the foregoing method embodiments of the present application, and details are not described herein again.

Fig. 11 is a schematic diagram of a possible logic structure of the controller 1100 involved in the above embodiments provided for the embodiments of the present application. The controller 1100 includes: a processor 1101, a communication port 1102, a memory 1103, and a bus 1104. The processor 1101, communication port 1102, and memory 1103 are interconnected by a bus 1104. In the embodiment of the present application, the processor 1101 is configured to perform control processing on the actions of the controller 1100, for example, the processor 1101 is configured to execute the functions executed by the execution unit 1002 and the determination unit 1003 in fig. 10. The communication port 1102 is used to perform the functions performed by the acquisition unit 1001 in fig. 10, and supports the controller 1100 for communication. A memory 1103 for storing program codes and data for the controller 1100.

The processor 1101 may be, among other things, a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, transistor logic, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a digital signal processor and a microprocessor, or the like. The bus 1104 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 11, but this is not intended to represent only one bus or type of bus.

Embodiments of the present application also provide a computer-readable storage medium storing one or more computer-executable instructions, which, when executed by a processor, cause the processor to perform the dust removal method as described above.

The embodiment of the present application further provides a computer program product storing one or more computer-executable instructions, and when the computer-executable instructions are executed by the processor, the processor executes the dust removal method.

The application also provides a chip system, which comprises a processor and is used for supporting the controller to realize the functions related to the dust removal method. In one possible design, the system-on-chip may also include a memory, storage, for storing necessary program instructions and data. The chip system may be constituted by a chip, or may include a chip and other discrete devices.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Claims

1. A dust removing device is applied to optical equipment, the optical equipment comprises an optical window, and the dust removing device comprises:

the air pump comprises a controller, an on-off module, an air storage cylinder and an air pump, wherein the on-off module, the air storage cylinder and the air pump are sequentially connected through an air path;

in the inflation process, the air outlet is adjusted to be closed by the on-off module under the control of the controller, and the air pump pressurizes and inflates the air storage cylinder under the control of the controller;

in the blowing process, the air outlet is adjusted to be opened by the on-off module under the control of the controller, so that the pressurized and inflated air in the air storage cylinder is blown to the optical window through the air outlet.

2. The apparatus of claim 1, wherein the optical device comprises a processor, and wherein the controller is included in the processor.

3. The apparatus of claim 1, wherein the optical device comprises a processor, the controller being connected to the processor;

the controller controls the on-off module and the working state of the air pump under the control of the processor.

4. The apparatus according to any one of claims 1 to 3, wherein the on-off module, air reservoir and air pump are built into the interior of the optical device.

5. The apparatus of claim 4, wherein the air outlet is telescopically disposed in the optical device.

6. The device of claim 4, further comprising a first buffer module connected to the air pump;

and/or the presence of a gas in the gas,

the device also comprises a second buffer module connected to the on-off module.

7. The apparatus of any of claims 1 to 3, wherein the on-off module, air reservoir and air pump are external to the optical device.

8. The apparatus of any one of claims 1 to 3, wherein the air pump, under the control of the controller, pressurizes and inflates the air reservoir to an air pressure of 120 to 250 kPa.

9. The device according to any one of claims 1 to 3, wherein the air flow rate inside the air reservoir is between 0.5 and 8 liters per minute.

10. The device according to any one of claims 1 to 3, further comprising an intake screen provided to the air pump;

and/or the presence of a gas in the gas,

the device also comprises an air outlet filter screen arranged at the air outlet.