Camera equipment and camera cleaning method

Abstract

The embodiments of the present application disclose a camera device and a camera cleaning method, which relate to the field of security technology and are invented to improve the automation level of cleaning the window of the camera device. The camera device includes: a camera and a pan / tilt head; wherein the camera is connected to the pan / tilt head; a cooling semiconductor and a condenser are provided on the pan / tilt head, and the cold end of the cooling semiconductor is connected to the condenser; a water tank, a pump and a nozzle are also provided on the pan / tilt head; the condenser is located above the opening of the water tank or at least partially inside the water tank; the pump is connected to the water tank and the nozzle through a water pipe to suck water from the water tank when the pump is working, and spray the extracted water onto the window of the camera through the nozzle. The present application is suitable for shooting images.

Description

Technical Field

[0001] The present application relates to the field of security technology, and in particular to a camera device and a camera cleaning method. Background Art

[0002] When the camera is detecting the environment, dust and powder may exist in the environment, and the dust and powder are easy to adhere to the window of the camera, resulting in unclear images and affecting the imaging quality.

[0003] In the prior art, it is necessary to manually add water to the water tank and pump the water in the water tank through a water pump to clean the window of the camera device. However, manually adding water to the water tank results in a low level of automation for cleaning the window.

[0004] How to improve the automation level of cleaning the windows of imaging equipment is a technical problem that those skilled in the art need to solve. Summary of the Invention

[0005] In view of this, embodiments of the present application provide a camera device and a camera cleaning method to improve the automation level of cleaning the window of the camera device.

[0006] In a first aspect, an embodiment of the present application provides a camera device, comprising: a camera and a pan-tilt head; wherein the camera is connected to the pan-tilt head; a cooling semiconductor and a condenser are provided on the pan-tilt head, and the cold end of the cooling semiconductor is connected to the condenser; a water tank, a pump and a nozzle are also provided on the pan-tilt head; the condenser is located above the opening of the water tank or at least partially inside the water tank; the pan-tilt head includes a power module; the power module is connected to the pump and the cooling semiconductor through a wire; the pump is connected to the water tank and the nozzle through a water pipe, so as to suck water from the water tank when the pump is working, and spray the extracted water onto the window of the camera through the nozzle.

[0007] According to a specific implementation of the embodiment of the present application, when the nozzle sprays water toward the viewing window of the camera, the water tank, the pump and the nozzle are located above the viewing window.

[0008] According to a specific implementation method of an embodiment of the present application, the pan-tilt head includes a main shell, and a protective cover is provided on the outer side of the end face of the main shell; the refrigeration semiconductor, the condensing plate, the water tank, the pump and the nozzle are arranged in a water collecting chamber formed by the end face of the main shell and the protective cover.

[0009] According to a specific implementation of the embodiment of the present application, the hot end of the refrigeration semiconductor is connected to the protective cover.

[0010] According to a specific implementation of the embodiment of the present application, a first ventilation hole and a second ventilation hole are arranged opposite to each other on the protective cover; and the condensing sheet is located between the first ventilation hole and the second ventilation hole.

[0011] According to a specific implementation method of an embodiment of the present application, a fixing bracket is provided on the end face of the main shell; the fixing bracket includes a base plate and an annular protrusion with a notch arranged perpendicular to the base plate; the base plate is arranged on the end face, and the pump is arranged on the annular protrusion.

[0012] According to a specific implementation of the embodiment of the present application, the water tank is arranged on the bottom plate, and the water tank is an incomplete ring body with an opening on the upper surface of the ring body.

[0013] According to a specific implementation of the embodiment of the present application, the water tank and the fixing bracket are staggered in the circumferential direction of the end surface of the main shell.

[0014] According to a specific implementation of the embodiment of the present application, a flameproof shell is provided between the end face and the water collecting chamber; the wire is led out from the main shell through the flameproof shell to the water collecting chamber, and flameproof material is provided in the flameproof shell.

[0015] According to a specific implementation method of an embodiment of the present application, the bottom plate is an annular plate, which is sleeved on the flameproof shell, the water tank is at least partially arranged between the flameproof shell and the protective cover, and the annular protrusion with a notch is at least partially arranged between the flameproof shell and the protective cover.

[0016] According to a specific implementation of the embodiment of the present application, during the operation of the camera device, the water tank is in a horizontal direction.

[0017] According to a specific implementation method of the embodiment of the present application, a rain sensor, a wiper control device, a wiper drive device and a wiper are provided on the camera; the rain sensor is provided at a position close to the window of the camera; the rain sensor is electrically connected to the wiper control device, and the wiper control device is electrically connected to the wiper drive device; the wiper drive device is connected to the wiper; the rain sensor detects water and sends a start signal to the wiper control device, the wiper control device starts the wiper drive device based on the start signal, and the wiper drive device drives the wiper to work.

[0018] In a second aspect, an embodiment of the present application provides a camera cleaning method, comprising: a pump draws water from a water tank, and sprays the drawn water onto the camera window through a nozzle; wherein the water in the water tank is obtained by condensing water in the air through a refrigeration semiconductor and a condensing sheet connected thereto, and introducing the water into the water tank; a rain sensor detects water, and sends a start signal to a wiper control device; the wiper control device receives the start signal, and starts a wiper drive device; the wiper drive device drives the wiper to clean the camera window.

[0019] According to a specific implementation of an embodiment of the present application, before the pump draws water from the water tank and sprays the drawn water onto the camera's window through a nozzle, the method further includes: the camera is rotated upward to a predetermined position so that the window corresponds to the nozzle.

[0020] According to a specific implementation of the embodiment of the present application, the camera is rotated upward to a predetermined position, comprising: according to a preset strategy, a driving device on the pan / tilt head drives the camera to rotate to the predetermined position.

[0021] According to a specific implementation of an embodiment of the present application, after the driving device on the pan-tilt head drives the camera to rotate to the predetermined position, the method further includes: starting the pump so that the pump extracts water from the water tank and sprays the extracted water onto the window of the camera through the nozzle.

[0022] According to a specific implementation of an embodiment of the present application, before the pump extracts water from the water tank and sprays the extracted water onto the window of the camera through the nozzle, the method further includes: the refrigeration semiconductor is energized; when air flows through the cold end of the refrigeration semiconductor, water condenses at the cold end of the refrigeration semiconductor and the condensing plate; and the water tank collects the condensed water at the cold end of the refrigeration semiconductor and the condensing plate.

[0023] The camera equipment and camera cleaning method of this embodiment are provided with a cooling semiconductor and a condensing plate on the pan / tilt head. The cold end of the cooling semiconductor is connected to the condensing plate. The condensing plate is located above the opening of the water tank or at least partially inside the water tank. The pump is connected to the water tank and the nozzle through a water pipe to suck water from the water tank when the pump is working, and spray the sucked water onto the camera window through the nozzle, thereby facilitating the cleaning of the camera window and improving the automation level of cleaning the camera window. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic structural diagram of an imaging device provided in one embodiment of the present application;

[0026] Figure 2 A partial exploded view of a camera device provided in one embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of the heat dissipation and water collection process in one embodiment of the present application;

[0028] Figure 4 A partial exploded view of a camera device provided in yet another embodiment of the present application;

[0029] Figure 5 This is a schematic structural diagram of a protective cover provided in one embodiment of the present application;

[0030] Figure 6 A schematic diagram of a partial structure of an imaging device provided in one embodiment of the present application;

[0031] Figure 7 A schematic structural diagram of an imaging device provided in yet another embodiment of the present application;

[0032] Figure 8 A schematic flow chart of a camera cleaning method according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below with reference to the accompanying drawings. It should be understood that the embodiments described are only a portion of the embodiments of the present application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0034] In order to enable those skilled in the art to better understand the technical concepts, implementation plans and beneficial effects of the embodiments of the present application, specific examples are described in detail below.

[0035] Figure 1 This is a structural diagram of a camera device provided in one embodiment of the present application. Figure 2 This is a partial exploded view of a camera device provided in one embodiment of the present application. Figure 3 This is a schematic diagram of heat dissipation and water collection in one embodiment of the present application. Figures 1 to 3The camera device of this embodiment may include: a camera 1 and a pan-tilt head 2; wherein the camera 1 is connected to the pan-tilt head 2; a cooling semiconductor 3 and a condensing plate 4 are provided on the pan-tilt head 2, and the cold end of the cooling semiconductor 3 is connected to the condensing plate 4; a water tank 5, a pump 6 and a nozzle 7 are also provided on the pan-tilt head 2; the condensing plate 4 is located above the opening of the water tank 5 or at least partially in the water tank 5; the pan-tilt head 2 includes a power module; the power module is connected to the pump 6 and the cooling semiconductor 3 through a wire; the pump 6 is connected to the water tank 5 and the nozzle 7 through a water pipe, so that when the pump 6 is working, the water in the water tank 5 is sucked and the extracted water is sprayed on the window of the camera 1 through the nozzle 7.

[0036] The camera 1 and the pan-tilt head 2 of this embodiment can be connected to the camera 1 via a motor in the pan-tilt head 2. The motor can realize the rotation of the camera 1. The camera 1 can be rotated by a preset angle in the horizontal direction or the vertical direction.

[0037] The cooling semiconductor 3 is a semiconductor-based electronic component that can be used as a small heat pump. Applying a DC voltage across its terminals causes heat to flow from one end to the other. This causes the temperature at one end of the cooler to drop while the temperature at the other end rises, creating a temperature difference between the hot and cold ends.

[0038] The condensing plate 4 of this embodiment can be made of metal material and connected to the cold end of the refrigeration semiconductor 3, which can expand the area in contact with the air and improve the condensation efficiency.

[0039] The shape of the water tank 5 can be regular or irregular.

[0040] The power module can provide the power required for the operation of the cooling semiconductor 3 and the pump 6. It is understood that the power module is electrically connected to the pump 6, and the power module is electrically connected to the cooling semiconductor 3. The wires used in the above electrical connections are collectively referred to as wires, that is, the wires can include two wires.

[0041] The viewing window may be made of a transparent material, through which the imaging device of the camera 1 may acquire an image of the object being photographed.

[0042] See also Figure 3 The solid arrows indicate the path of heat conduction. When the cooling semiconductor is working, a temperature difference is generated. The heat brought by air flow and external air is transferred out through heat conduction. The hollow arrows indicate the direction of water vapor flow. The air flow and external air bring moisture. When the water vapor encounters the low-temperature condensation sheet, it forms condensed water and flows into the water tank under the action of gravity.

[0043] The water condensed by the refrigeration semiconductor 3 and the condensing sheet 4 can be introduced into the water tank 5 . After the pump 6 is started, the pump 6 can suck the water in the water tank 5 and spray the pumped water onto the window of the camera 1 through the nozzle 7 .

[0044] In this embodiment, a cooling semiconductor 3 and a condensing plate 4 are provided on the pan-tilt head 2. The cold end of the cooling semiconductor 3 is connected to the condensing plate 4. The condensing plate 4 is located above the opening of the water tank 5 or at least partially in the water tank 5. The pump 6 is connected to the water tank 5 and the nozzle 7 through a water pipe to suck water from the water tank 5 when the pump 6 is working, and spray the sucked water onto the window of the camera 1 through the nozzle 7, so as to facilitate cleaning the window of the camera 1 and improve the automation level of cleaning the window of the camera 1.

[0045] In some examples, when the nozzle 7 sprays water toward the viewing window of the camera 1 , the cooling semiconductor 3 , the condensing plate 4 , the water tank 5 , the pump 6 and the nozzle 7 are located above the viewing window.

[0046] When the window is sprayed with water, the water tank 5, the pump 6 and the nozzle 7 are arranged above the window of the camera 1. In this way, the power consumption of the pump 6 can be reduced, saving energy and cost.

[0047] See also Figure 4 Another embodiment of the present application is basically the same as the above embodiment, except that the pan / tilt head 2 of this embodiment includes a main shell 8, and a protective cover 9 is provided on the outer side of the end face of the main shell 8; the refrigeration semiconductor 3, the condensing sheet 4, the water tank 5 and the pump 6 are arranged in the water collecting chamber formed by the end face of the main shell 8 and the protective cover 9.

[0048] A driving device may be provided in the main housing 8 to drive the camera 1 to move relative to the pan / tilt head 2 .

[0049] Protective cover 9 can be made of metal or non-metallic material. For the convenience of heat conduction, protective cover 9 can be made of metal material, for the convenience of heat dissipation, heat sink can also be set on the outside of protective cover 9.

[0050] The cavity formed by the end faces of the protective cover 9 and the main shell 8, i.e., the water collecting chamber, is provided with a refrigeration semiconductor 3, a condensing plate 4, a water tank 5, a pump 6 and a nozzle 7. The water collecting chamber can activate the protective function for the components therein and, in addition, can make the appearance more concise.

[0051] In order to facilitate the rapid dissipation of heat generated by the hot end of the cooling semiconductor 3 , in some examples, the hot end of the cooling semiconductor 3 is connected to the protective cover 9 .

[0052] See also Figure 5In order to improve the condensation effect of the cold end of the refrigeration semiconductor 3 and the condensing plate 4, in some examples, a first ventilation hole 10 and a second ventilation hole 11 are relatively arranged on the protective cover 9; the condensing plate 4 is located between the first ventilation hole 10 and the second ventilation hole 11.

[0053] A first ventilation hole 10 and a second ventilation hole 11 are oppositely arranged on the protective cover 9 , that is, the first ventilation hole 10 and the second ventilation hole 11 are located on a line on a diameter of the protective cover 9 .

[0054] A first ventilation hole 10 and a second ventilation hole 11 are relatively arranged on the protective cover 9, so that the wind passing through the first ventilation hole 10 and the second ventilation hole 11 can easily generate convection, and the air flow speed is fast. The condensing sheet 4 is located between the first ventilation hole 10 and the second ventilation hole 11, that is, it is located on the convection channel of the air. In this way, the condensation effect of the cooling semiconductor 3 and the condensing sheet 4 can be increased.

[0055] See also Figure 4 In order to facilitate the fixation of the pump 6 and save space in the protective cover 9, in some examples, a fixing bracket 12 is provided on the end face of the main shell 8; the fixing bracket 12 includes a bottom plate 120 and an annular protrusion 122 with a notch arranged perpendicular to the bottom plate; the bottom plate is arranged on the end face, and the pump 6 is arranged on the annular protrusion.

[0056] In order to further save space in the protective cover 9, in some examples, the water tank 5 is arranged on the bottom plate. The water tank 5 is an incomplete ring-shaped body with an opening on the upper surface of the ring-shaped body.

[0057] In order to further save space in the protective cover 9 , in some examples, the water tank 5 and the annular protrusion with the notch are staggered in the circumferential direction of the end surface of the main shell 8 .

[0058] The water tank 5 and the fixing bracket 12 are staggered in the circumferential direction of the end surface of the main shell 8, which can save space in the protective cover 9 and reduce the volume of the protective cover 9.

[0059] The water tank 5 can be fixedly connected to the fixing bracket 12, so that the water tank 5 can be more stable.

[0060] See also Figure 6 In order to improve the safety of the pan / tilt head 2, in some examples, a flameproof shell 13 is provided between the end face and the water collecting chamber; the wires are led out from the main shell 8 through the flameproof shell 13 to the water collecting chamber, and flameproof materials are provided inside the flameproof shell 13.

[0061] The wires are led out from the main housing 8 through the flameproof housing 13 to the water collecting chamber. Flameproof materials are provided in the flameproof housing 13. In this way, the wires are flameproofed, and the circuit parts in the pump 6 and the refrigeration semiconductor 3 meet the intrinsic safety design standards, thereby improving safety.

[0062] In order to save space inside the protective cover 9, in some examples, the base plate 120 is an annular plate, which is sleeved on the flameproof shell 13, the water tank 5 is at least partially disposed between the flameproof shell 13 and the protective cover 9, and the annular protrusion 122 with a notch is at least partially disposed between the flameproof shell 13 and the protective cover 9.

[0063] In some examples, when the camera device is in operation, the water tank is in a horizontal position, so that the water in the water tank does not flow out of the water tank, thereby improving the reliability of cleaning the window.

[0064] See also Figure 7 In order to clean the window of the camera 1, in some examples, a rain sensor 14, a wiper control device, a wiper driving device and a wiper 15 are provided on the camera 1; the rain sensor 14 is arranged near the window of the camera 1; the rain sensor 14 is electrically connected to the wiper control device, the wiper control device is electrically connected to the wiper driving device; the wiper driving device is connected to the wiper 15.

[0065] After detecting water, the rain sensor 14 sends a start signal to the wiper control device. The wiper control device starts the wiper driving device based on the start signal, and the wiper driving device drives the wiper 15 to work.

[0066] In this embodiment, by arranging the rain sensor 14 at a position close to the window of the camera 1, when the rain sensor 14 detects water, it is determined that there is water on the window of the camera 1. In this case, a start signal is sent to the wiper control device, and the wiper control device starts the wiper drive device based on the start signal, and the wiper drive device drives the wiper 15 to work, so that the wiper 15 requests the window.

[0067] An explosion-proof cavity may be provided in the camera, and the wiper control device is connected to the rain sensor and the wiper drive device via a wire, and the wire is at least partially provided in the explosion-proof cavity.

[0068] The camera equipment in the above embodiments can be designed with explosion-proof measures to avoid becoming a dangerous ignition source and preventing industrial explosion accidents. It can be used in places where explosive materials are produced, processed, stored and transported.

[0069] Figure 8 A flow chart of a camera cleaning method provided in one embodiment of the present application is shown as follows: Figure 8 As shown, a camera cleaning method provided by an embodiment of the present application may include:

[0070] S101: A pump draws water from a water tank and sprays the drawn water onto the camera window through a nozzle.

[0071] In this embodiment, the water in the water tank is obtained by condensing water in the air through the refrigeration semiconductor and the condensing plate connected thereto, and then introducing the water into the water tank.

[0072] The viewing window may be made of a transparent material, through which the imaging device of the camera may obtain an image of the object being photographed.

[0073] A cooling semiconductor is a semiconductor-based electronic component that can be used as a small heat pump. Applying a DC voltage across the cooling semiconductor causes heat to flow from one end of the component to the other. This causes the temperature at one end of the cooler to drop while the temperature at the other end simultaneously rises, creating a temperature difference between the hot and cold ends.

[0074] S102: The rain sensor detects water and sends a start signal to the wiper control device.

[0075] When the rain sensor detects water, it assumes that there is water on the camera's window.

[0076] When the water sensor detects water, it sends an activation signal to the wiper control unit.

[0077] S103: The wiper control device receives a start signal and starts the wiper driving device.

[0078] The wiper driving device can be a motor. After receiving the start signal, the wiper control device starts the motor to work.

[0079] S104: The wiper driving device drives the wiper to clean the camera window.

[0080] The wiper driving device drives the wiper to work, so that the wiper cleans the window of the camera.

[0081] In this embodiment, a pump draws water from the water tank and sprays the drawn water onto the camera window through a nozzle. The rain sensor detects the water and sends a start signal to the wiper control device. The wiper control device receives the start signal and starts the wiper drive device. The wiper drive device drives the wiper to clean the camera window. The water in the water tank is obtained by condensing water in the air through a refrigeration semiconductor and a condensing sheet connected thereto, and then introducing the water into the water tank. In this way, the automation level of cleaning the camera window is improved.

[0082] In one embodiment of the present application, the method is substantially the same as the above embodiment, except that, before the pump extracts water from the water tank and sprays the extracted water onto the camera window through the nozzle (S101), the method of this embodiment may further include:

[0083] S105 , the camera rotates upward to a predetermined position so that the viewing window corresponds to the nozzle.

[0084] The control device of the camera can obtain the position to which the camera is rotated. When the camera window needs to be cleaned, the camera is rotated upward to a predetermined position. At the predetermined position, the camera window corresponds to the spray gun.

[0085] In some examples, the camera is rotated upward to a predetermined position, which may include:

[0086] S105a: According to a preset strategy, the driving device on the pan / tilt head drives the camera to rotate to a predetermined position.

[0087] The preset strategy may be to clean the window once at a predetermined time interval, such as once a week. In this way, when one week has passed since the last cleaning, the driving device on the pan / tilt head drives the camera to rotate to a predetermined position.

[0088] The preset strategy can also be to clean the window when the image captured by the camera is blurred or spots appear.

[0089] The preset strategy may also be to clean the window when the water in the water tank reaches a preset amount.

[0090] In some examples, after the driving device on the pan / tilt head drives the camera to rotate to a predetermined position, the method of this embodiment may further include:

[0091] S106: Start the pump to draw water from the water tank and spray the drawn water onto the camera window through the nozzle.

[0092] In another embodiment, before the pump draws water from the water tank and sprays the drawn water onto the camera window through the nozzle (S101), the method of this embodiment may further include:

[0093] S107, the cooling semiconductor is powered on.

[0094] A cooling semiconductor is a heat transfer tool. It can be made of a thermocouple consisting of two different semiconductors connected in series. When direct current passes through the thermocouple, heat is absorbed and released at each end. For example, when current flows through a thermocouple consisting of an N-type semiconductor and a P-type semiconductor, heat transfer occurs between the two ends, creating a temperature difference between the hot and cold ends.

[0095] S108. When the air flows through the cold end of the refrigeration semiconductor, water condenses on the cold end of the refrigeration semiconductor and the condensing plate.

[0096] In this embodiment, the refrigeration semiconductor and the condenser are connected.

[0097] S109. The water tank collects the condensed water from the cold end of the refrigeration semiconductor and the condensing plate.

[0098] It can be understood that the cleaning method of the above embodiment is performed based on the structural design of the imaging device of the above embodiment.

[0099] The camera cleaning method of the present application is described below with a specific embodiment: 1. The camera is in operation, and the condensed water in the air that comes into contact with the cooling semiconductor and the condensing plate is stored in the water tank.

[0100] The refrigeration semiconductor is fixed on the protective cover, which is designed with heat sinks and ventilation holes to allow external air to flow in and continuously collect moisture in the air.

[0101] 2. When the camera needs to be cleaned, turn the camera upward to a predetermined angle. Align the camera window with the nozzle.

[0102] The nozzle is positioned above the camera, primarily considering pump power and product form. The cooling semiconductor, condenser, water tank, pump, and nozzle are positioned higher than the camera.

[0103] 3. After the camera has completed its rotation, start the water pump to pump out the water from the water tank and spray it out from the nozzle. The water should be sprayed towards the window glass of the camera cavity. The angle design should take into account gravity and pump pressure.

[0104] 4. When the rain sensor detects water spray, a signal is transmitted to the system. Once the presence of water is confirmed, the wipers are activated for cleaning. The wiper control and drive units are located within the explosion-proof chamber and are designed to meet explosion-proof requirements.

[0105] 5. After the water in the water tank is sprayed out, the rain sensor senses it, stops the wipers, and enters the camera working state. Continue to collect water.

[0106] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0107] Each embodiment in this specification is described in a related manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0108] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A camera device, characterized in that: include: A camera and a pan / tilt head; wherein the camera is connected to the pan / tilt head; A refrigeration semiconductor and a condensing plate are provided on the platform, and the cold end of the refrigeration semiconductor is connected to the condensing plate; A water tank, a pump and a nozzle are also provided on the platform; the condenser is located above the opening of the water tank or at least partially within the water tank; the circuit part of the pump and the refrigeration semiconductor complies with the intrinsic safety design standard; The pan / tilt platform includes a power supply module; the power supply module is connected to the pump and the refrigeration semiconductor via wires; The pan / tilt head comprises a main housing, a protective cover is provided on the outer side of the end face of the main housing; the refrigeration semiconductor, the condenser plate, the water tank and the pump are arranged in a water collecting cavity formed by the end face and the protective cover; a heat sink is provided on the outer side of the protective cover; the hot end of the refrigeration semiconductor is connected to the protective cover; A fixing bracket is provided on the end surface; the fixing bracket includes a bottom plate and an annular protrusion with a notch arranged perpendicular to the bottom plate; the bottom plate is arranged on the end surface, and the pump is arranged on the annular protrusion; The water tank is arranged on the bottom plate, and the water tank is an incomplete ring-shaped body with an opening on the upper surface of the ring-shaped body; The water tank and the annular protrusion with a notch are staggered in the circumferential direction of the end surface; A flameproof housing is provided between the end surface and the water collecting cavity; the wire is led from the main housing through the flameproof housing to the water collecting cavity, and flameproof material is provided in the flameproof housing; The pump is connected to the water tank and the spray head through a water pipe so that when the pump is working, it sucks water from the water tank and sprays the sucked water onto the viewing window of the camera through the spray head.

2. The imaging device according to claim 1, wherein When the nozzle sprays water toward the viewing window of the camera, the water tank, the pump and the nozzle are located above the viewing window.

3. The imaging device according to claim 1, wherein A first ventilation hole and a second ventilation hole are arranged opposite to each other on the protective cover; and the condensing sheet is located between the first ventilation hole and the second ventilation hole.

4. The imaging device according to claim 1, wherein The bottom plate is an annular plate, which is sleeved on the flameproof shell. The water tank is at least partially arranged between the flameproof shell and the protective cover. The annular protrusion with a notch is at least partially arranged between the flameproof shell and the protective cover.

5. The imaging device according to claim 1, wherein During the operation of the imaging device, the water tank is in a horizontal direction.

6. The imaging device according to claim 1, wherein The camera is provided with a rain sensor, a wiper control device, a wiper driving device and a wiper; the rain sensor is provided at a position close to the window of the camera; The rain sensor is electrically connected to the wiper control device, the wiper control device is electrically connected to the wiper drive device; the wiper drive device is connected to the wiper; The rain sensor detects water and sends a start signal to the wiper control device. The wiper control device starts the wiper driving device based on the start signal, and the wiper driving device drives the wiper to operate.

7. A method for cleaning a camera, characterized in that: Applicable to the imaging device according to claim 1; the method comprising: The camera is rotated upward to a predetermined position so that the viewing window corresponds to the nozzle; The pump draws water from the water tank and sprays the drawn water onto the camera window through the nozzle; wherein the water in the water tank is obtained by condensing water in the air through a refrigeration semiconductor and a condenser sheet connected thereto and then introducing the water into the water tank; The rain sensor detects water and sends an activation signal to the wiper control unit The wiper control device receives the start signal and starts the wiper driving device; The wiper driving device drives the wiper to clean the window of the camera.

Images