Lens protection device and monitoring equipment

Abstract

The invention discloses a lens protection device and monitoring equipment, and belongs to the technical field of outdoor monitoring. The protection device comprises a shell, the shell is provided with a camera shooting channel penetrating through the two ends, and one end of the shell is used for being connected with a lens; the elastic structural body is used for opening the camera shooting channel so that the camera can perform optical imaging through the camera shooting channel or closing the camera shooting channel so as to protect the camera, and the elastic structural body is connected to the inner wall surface of the camera shooting channel and forms a working space with the inner wall surface; the multiple movable parts are movably arranged on the shell at intervals in the circumferential direction of the shell, and each movable part comprises a pushing part located in the working space; and the plurality of pushing parts can synchronously approach and move towards the center of the camera shooting channel to drive the elastic structure body to contract so as to close the camera shooting channel or synchronously move away from the center of the camera shooting channel to enable the elastic structure body to expand so as to open the camera shooting channel. The technical problem that an existing lens protection device is prone to being affected by the external environment is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of outdoor monitoring, and in particular to a lens protection device and monitoring equipment. Background Art

[0002] In the visualization products in the power security industry, the need for clear identification of various scenes during the day and night is very common. Optical devices are used to capture light imaging in nature for visualization analysis, but the environment in which power security monitoring equipment is located is an outdoor high-voltage and high-altitude environment, which requires a long life cycle for the equipment. On the one hand, long-term exposure to dust, rain, dirt and impurities will affect the cleanliness of the optical imaging system, thereby causing a serious decline in the optical imaging effect; on the other hand, long-term exposure to ultraviolet rays will also seriously affect the optical imaging effect due to the aging speed of optical devices, making the equipment unable to be used for a long time.

[0003] At present, the following methods are usually used to solve the above problems. One method is to use manual operation and maintenance, that is, to send technicians to clean and maintain the equipment on site. Since the monitoring equipment may be set up in some remote areas, the cost of manual operation and maintenance is too high, and the efficiency of manual operation and maintenance itself is low. Another method is to add protective components, but since the structure of the protective components is exposed to the external environment, the impact of wind, sand, rain, snow, etc. on the protective components may cause mechanical failure of the protective components. Therefore, the current lens protective device has the technical problem of being easily affected by the external environment. Summary of the invention

[0004] The main purpose of the present invention is to provide a lens protection device, aiming to solve the technical problem that the current lens protection device is easily affected by the external environment.

[0005] To achieve the above object, the present invention provides a lens protection device, wherein the lens includes a host and a camera, and the protection device includes:

[0006] A housing, wherein the housing is provided with a camera channel extending through both ends, and one end of the housing is used to be connected to the lens;

[0007] An elastic structure, used for opening the camera channel so that the camera can perform optical imaging through the camera channel or closing the camera channel to protect the camera, the elastic structure being connected to the inner wall surface of the camera channel and enclosing a working space with the inner wall surface;

[0008] A plurality of movable parts are arranged on the shell at circumferential intervals along the shell, and the movable parts include a pushing part located in the working space. The plurality of pushing parts can synchronously move toward the center of the camera channel to drive the elastic structure to contract and close the camera channel, or synchronously move away from the center of the camera channel to cause the elastic structure to relax and open the camera channel.

[0009] Optionally, in an embodiment of the present invention, the lens protection device further comprises a protective shell, the protective shell is connected to the housing and encloses an outer wall of the housing to form a protective space, and the movable part comprises:

[0010] A propulsion rod, which is movably arranged on the shell at intervals along the circumference of the shell, wherein a portion of the propulsion rod is located in the working space and a portion of the propulsion rod extends out of the working space and into the protection space;

[0011] an annular portion, the annular portion being connected to the propulsion rod and being located in the working space;

[0012] A pushing portion is connected to the annular portion.

[0013] Optionally, in one embodiment of the present invention, the number of the movable members is six, the intervals between two adjacent movable members are the same, and / or

[0014] The plurality of annular portions synchronously move toward the center of the camera channel and come together to form a ring.

[0015] Optionally, in an embodiment of the present invention, the pushing portion is an elastic member.

[0016] Optionally, in one embodiment of the present invention, a plurality of the elastic members synchronously move toward the center of the camera channel to form a circle, and the center of the circle is located at the axis of the camera channel.

[0017] Optionally, in one embodiment of the present invention, the Shore hardness of the elastic member is in the range of 30 to 50, and / or

[0018] The elastic member is made of silicone.

[0019] Optionally, in one embodiment of the present invention, the elastic structure is elastic cloth.

[0020] Optionally, in one embodiment of the present invention, the elastic structure includes:

[0021] A conical portion, the conical portion being sealed and connected to an end of the housing away from the camera;

[0022] A cylindrical portion, wherein the cylindrical portion is communicated with the conical portion, the pushing portion abuts against the cylindrical portion, and the movable member drives the cylindrical portion to close the camera channel or open the camera channel;

[0023] A folded edge portion, wherein the folded edge portion is connected to the cylindrical portion, and the folded edge portion is sealed and connected to the other end of the shell.

[0024] Optionally, in one embodiment of the present invention, the color of the elastic structure is red.

[0025] To achieve the above object, an embodiment of the present invention further provides a monitoring device, including a lens, a main control unit and the above lens protection device.

[0026] Compared with the prior art, the present invention can at least achieve the following beneficial effects. The shell is connected to the lens to fix the protective device on the lens. The shell is provided with a camera channel, which facilitates the optical imaging of the camera and does not block the optical imaging of the camera. The camera channel is opened or closed by the deformation of the elastic structure. The elastic structure and the shell are enclosed to form a working space, and the pushing part is located in the working space to prevent the influence of wind, sand, rain, snow, etc. on the pushing part, thereby solving the technical problem that the current protective device is easily affected by the external environment. Driven by the pushing part, the elastic structure has two states, one is the shooting state of opening the camera channel, and the other is the protective state of closing the camera channel. When switching from the shooting state to the protection state, the push part moves toward the center of the camera channel and drives the elastic structure. Several push parts simultaneously drive the elastic structure to move toward the center of the camera channel. The elastic structure continuously contracts toward the center until the camera channel is completely closed. After the camera channel is closed, the elastic structure blocks the external wind, sand, rain, snow, etc. from entering the camera channel to prevent them from affecting the camera, thereby protecting the camera. In addition, the elastic structure can not only block the wind, sand, rain, snow, but also block sunlight, slowing down the aging of the camera due to sunlight. When the camera needs to perform optical imaging, the push part synchronously moves away from the center of the camera channel, and the elastic structure expands in a direction away from the center of the camera channel, so that the camera channel is opened and the camera can perform optical imaging through the camera channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1It is a structural schematic diagram of a lens protection device of the present invention in a shooting state;

[0029] Figure 2 It is a structural schematic diagram of a lens protection device of the present invention in a protection state;

[0030] Figure 3 It is a structural schematic diagram of movable parts of a lens protection device of the present invention in a protection state;

[0031] Figure 4 It is a structural schematic diagram of movable parts of a lens protection device of the present invention when it is in a shooting state;

[0032] Figure 5 It is a structural schematic diagram of an embodiment of an elastic structure in a lens protection device of the present invention;

[0033] Figure 6 The present invention is a workflow diagram of a monitoring device.

[0034] Description of Figure Numbers:

[0035] Label name Label name 100 case 110 Camera Channel 120 Workspace 200 Elastic structure 210 Protecting space 220 Cone 230 Cylindrical part 240 Folding part 300 Active parts 310 Propulsion rod 320 Ring 330 Promotion Department 400 Protective case 500 Drive motor 610 Camera 620 Host

[0036] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] Reference Figure 1 and Figure 2 The present invention provides a lens protection device, the lens includes a host 620 and a camera 610, and the protection device includes:

[0042] The housing 100 is provided with a camera channel 110 passing through both ends, and one end of the housing 100 is used to connect with a lens;

[0043] The elastic structure 200 is used to open the camera channel 110 so that the camera 610 can perform optical imaging through the camera channel 110 or to close the camera channel 110 to protect the camera 610. The elastic structure 200 is connected to the inner wall surface of the camera channel 110 and forms a working space 120 with the inner wall surface;

[0044] A plurality of movable parts 300 are movably arranged on the shell 100 at circumferential intervals along the shell 100. The movable parts 300 include a pushing portion 330 located in the working space 120. The plurality of pushing portions 330 can synchronously move toward the center of the camera channel 110 to drive the elastic structure 200 to contract and close the camera channel 110, or synchronously move away from the center of the camera channel 110 to cause the elastic structure 200 to relax and open the camera channel 110.

[0045] In the technical solution adopted in this embodiment, the shell 100 is connected to the lens to fix the protective device on the lens. The shell 100 is provided with a camera channel 110, which facilitates the optical imaging of the camera 610 and does not block the optical imaging of the camera 610. The camera channel 110 is opened or closed by the deformation of the elastic structure 200. The elastic structure 200 and the shell 100 are enclosed to form a working space 120, and the pushing part 330 is located in the working space 120 to prevent the influence of wind, sand, rain, snow, etc. on the pushing part 330, thereby solving the technical problem that the current protective device is easily affected by the external environment. The elastic structure 200 has two states under the push of the pushing part 330, one is the shooting state of opening the camera channel 110, and the other is the protective state of closing the camera channel 110. When switching from the shooting state to the protection state, the push part 330 moves toward the center of the camera channel 110 and drives the elastic structure 200. Several push parts 330 synchronously drive the elastic structure 200 to move toward the center of the camera channel 110. The elastic structure 200 continuously shrinks toward the center of the camera channel 110 until the camera channel 110 is completely closed. After the camera channel 110 is closed, the elastic structure 200 blocks the external wind, sand, rain, snow, etc. from entering the camera channel 110 to prevent it from affecting the camera 610, thereby protecting the camera 610. In addition, the elastic structure 200 can not only block the wind, sand, rain, snow, but also block sunlight, slowing down the aging of the lens due to sunlight. When the camera 610 needs to perform optical imaging, the push part 330 synchronously moves away from the center of the camera channel 110, and the elastic structure 200 relaxes in a direction away from the center of the camera channel 110, so that the camera channel 110 is opened, and the camera 610 can perform optical imaging through the camera channel 110.

[0046] The driving of the elastic structure 200 by the pushing portion 330 can be realized in at least the following two forms:

[0047] 1. The pushing portion 330 abuts against the elastic structure 200, and the pushing portion 330 pushes the elastic structure 200 to move toward the center of the camera channel 110 to close the camera channel 110. When the pushing portion 330 moves away from the center of the camera channel 110, the elastic structure 200 loses the thrust of the pushing portion 330, and under the action of elastic deformation, the elastic structure 200 expands in a direction away from the center of the camera channel 110, so that the camera channel 110 is opened.

[0048] 2. The pushing portion 330 is fixedly connected to the elastic structure 200 , and the pushing portion 330 drives the elastic structure 200 to contract toward the center of the camera channel 110 or to expand toward the direction away from the center of the camera channel 110 .

[0049] Specifically, the shell 100 is connected to the host 620, and the connection method can be selected as a threaded connection. As long as the protective device can be installed as a whole on the host 620 or the camera 610 to ensure that the protective device can protect the camera 610, the specific connection method is not limited here.

[0050] in addition, Figure 1 and Figure 2 The dotted line in FIG. 6 is a schematic diagram of the field of view of the camera 610 during optical imaging.

[0051] Further, refer to Figure 2-Figure 4 The lens protection device further includes a protective shell 400, which is connected to the housing 100 and encloses the outer wall of the housing 100 to form a protective space 210. The movable part 300 includes:

[0052] A propulsion rod 310, the propulsion rod 310 is movably arranged on the housing 100 at intervals along the circumference of the housing 100, and a portion of the propulsion rod 310 is located in the working space 120, and a portion of the propulsion rod 310 extends out of the working space 120 and into the protection space 210;

[0053] An annular portion 320 , the annular portion 320 is connected to the propulsion rod 310 , and the annular portion 320 is located in the working space 120 ;

[0054] The pushing portion 330 is connected to the annular portion 320 .

[0055] In addition, the protective shell 400 and the housing 100 can be processed and formed separately or integrally. The protective device as a whole can be connected to the lens through the protective shell 400 or through the housing 100.

[0056] In the technical solution adopted in this embodiment, since the movable part 300 partially extends out of the shell 100, the movable part 300 outside the shell 100 may be affected by the wind, sand, rain and snow in the external environment, and a protective shell 400 is provided. The protective shell 400 and the shell 100 enclose a protective space 210, and the part of the movable part 300 extending out of the shell 100 is located in the protective shell 400, and the protective shell 400 prevents the movable part 300 from being affected by the external environment.

[0057] The lens protection device also includes a drive motor 500, which can be a rotational drive or a linear drive, depending on the specific connection method between the propulsion rod 310 and the housing 100. When the propulsion rod 310 and the housing 100 are connected by a threaded progressive connection, the drive motor 500 is selected as a rotational drive, and when the propulsion rod 310 and the housing 100 are connected by a sliding connection, the drive motor 500 is selected as a linear drive. It can be understood that in order to ensure the synchronous propulsion of each propulsion rod 310, the motor is selected as a stepping motor to ensure the synchronous movement of each propulsion rod 310. The drive motor 500 is electrically connected to the host 620, and the host 620 supplies power to the drive motor 500 or an additional power supply is set to supply power to the motor. The power supply method of the drive motor 500 is not limited here.

[0058] Further, the number of movable members 300 is six, the intervals between two adjacent movable members 300 are the same, and / or

[0059] The plurality of annular portions 320 synchronously move toward the center of the camera channel 110 to form a circular ring.

[0060] In the technical solution adopted in this embodiment, the number of movable parts 300 is six, and the intervals between two adjacent movable parts 300 are the same. This structure can achieve that the lengths of the parts of the elastic structure 200 pushed extending toward the center of the camera channel 110 are similar, thereby ensuring the sealing effect in its protective state.

[0061] It is understandable that the number of movable parts 300 can be three, four, five, seven, etc. The fewer the number of movable parts 300, the worse the sealing effect, and the more the number of movable parts 300, the better the sealing effect, but the more energy consumed. Since the lens may be set in a remote area or at a high place, it is difficult to directly connect an external power supply to the entire device, so a power supply is usually provided in the host 620. At this time, it is necessary to consider the power consumption of the protective device. After comprehensively considering the sealing effect and power consumption, the number of movable parts 300 is preferably six.

[0062] In addition, several annular portions 320 are spliced ​​together to form a circular ring in a protective state. When several annular portions 320 are spliced ​​together to form a circular ring, it indicates that the movable part 300 has been pushed into place, and the elastic structure 200 has completed the closure of the camera channel 110. The splicing of the annular portions 320 into a circular ring can not only ensure the sealing and protective effect of the elastic structure 200, but also limit the propulsion stroke of the propulsion rod 310.

[0063] Furthermore, the pushing portion 330 is an elastic member.

[0064] In the technical solution adopted in this embodiment, the elastic member directly abuts against the elastic structure 200. When the elastic structure 200 is in a protective state, multiple elastic members squeeze and deform each other, which can make the elastic structure 200 more tightly sealed and further improve the sealing effect of the elastic structure 200.

[0065] Furthermore, a plurality of elastic members synchronously move toward the center of the camera channel 110 to form a circle, and the center of the circle is located at the axis of the camera channel 110 .

[0066] In the technical solution adopted in this embodiment, a number of elastic members are enclosed and close together to form a circle, and the center of the circle is located on the axis of the camera channel 110, ensuring that the lengths of the parts of the elastic structure 200 pushed toward the center of the camera channel 110 are similar.

[0067] Specifically, when the number of movable parts 300 is three, the central angle of the arc portion and the angle of the tip of the pushing part 330 are both 120°, when the number of movable parts 300 is four, the central angle of the arc portion and the angle of the tip of the pushing part 330 are both 90°, and when the number of movable parts 300 is six, the central angle of the arc portion and the angle of the tip of the pushing part 330 are both 60°.

[0068] Furthermore, the Shore hardness of the elastic member is in the range of 30 to 50, and / or

[0069] The elastic member is made of silicone.

[0070] In order to achieve mutual extrusion between the elastic parts to enhance the sealing effect, the elastic parts are specifically made of silicone with a Shore hardness of 40.

[0071] Furthermore, the elastic structure 200 is elastic cloth, and its color is red.

[0072] The material of the elastic structure 200 can be synthetic rubber, elastic cloth, etc. Since the elastic structure 200 needs to be protected from sunlight, and rubber is less resistant to ultraviolet rays than cloth, the material of the elastic structure 200 is preferably elastic cloth.

[0073] It is understandable that since red light has the longest wavelength and the strongest ability to absorb ultraviolet rays, in order to reduce the aging effect of ultraviolet rays on the camera 610, the color of the elastic structure 200 is selected to be red.

[0074] Further, see Figure 5 , the elastic structure 200 comprises:

[0075] The conical portion 220 is sealed and connected to an end of the housing 100 away from the camera 610;

[0076] The cylindrical portion 230 is connected to the conical portion 220 , the pushing portion 330 abuts against the cylindrical portion 230 , and the movable member 300 drives the cylindrical portion 230 to close the camera channel 110 or open the camera channel 110 ;

[0077] The folded edge portion 240 is connected to the cylindrical portion 230 , and the folded edge portion 240 is sealedly connected to the other end of the shell 100 .

[0078] The elastic structure 200 is sealed to the housing 100 to prevent fine sand from entering the gap between the elastic structure 200 and the housing 100 .

[0079] It is understandable that the elastic structure 200 may be formed as an integral unit, or each part may be formed separately and then connected as a whole.

[0080] An embodiment of the present invention further proposes a monitoring device, including a lens, a main control unit and a lens protection device as described above. Specifically, the specific structure of the protection device refers to the above embodiment. Since the monitoring device adopts all the technical solutions of the above embodiment, it at least has all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here one by one.

[0081] In addition, refer to Figure 6 Since the camera 610 does not need continuous optical imaging, the imaging interval is set according to different working environments. By setting the main control unit, the intelligent control of the protective device can be realized. Before the protected camera 610 needs to perform optical imaging each time, the main control unit sends a command in advance to open the camera channel 110. After the optical imaging is completed, the optical imaging completion signal is fed back, and the main control unit sends a command to close the camera channel 110 to protect the lens. During the day, the main control unit controls the protective device to execute the daytime workflow:

[0082] Open the white vision preset command for taking pictures and suspend optical imaging - provide the command to open the white vision protection shielding structure - open the white vision protection structure - feedback that the white vision protection structure is successfully opened - pause release and execute imaging - execute the white vision optical imaging work - immediately provide the command to close the white vision protection shielding structure after the imaging work is completed - close the white vision protection structure - feedback that the white vision protection structure is successfully closed.

[0083] At night, the main control unit controls the protection device to perform the night work process:

[0084] Open the night vision preset command for taking pictures and suspend optical imaging - provide the command to open the night vision protection shielding structure - open the night vision protection structure - feedback that the night vision protection structure is successfully opened - pause release and execute imaging - execute night vision optical imaging work - immediately provide the command to close the night vision protection shielding structure after the imaging work is completed - close the night vision protection structure - feedback that the night vision protection structure is successfully closed.

[0085] Currently, there is a device that forms a gas barrier to protect the camera 610 by setting a high-pressure blowing device in front of the camera 610, but it is necessary to blow air to the camera 610 continuously, which consumes a lot of electricity and cannot be used in situations where there is no external power supply. Setting a main control unit to control the elastic structure 200 to intelligently switch between the protection state and the shooting state can reduce energy consumption and can be used in situations where an external power supply is inconvenient and a mobile power supply is used for power supply.

[0086] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structures, material properties, appearance colors, control logic, etc. made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lens protection device, the lens comprising a host and a camera, characterized in that: The protective device comprises: A housing, wherein the housing is provided with a camera channel extending through both ends, and one end of the housing is used to be connected to the lens; An elastic structure, used for opening the camera channel so that the camera can perform optical imaging through the camera channel or closing the camera channel to protect the camera, the elastic structure being connected to the inner wall surface of the camera channel and enclosing a working space with the inner wall surface; A plurality of movable parts are arranged on the shell at circumferential intervals along the shell, and the movable parts include a pushing part located in the working space. The plurality of pushing parts can synchronously move toward the center of the camera channel to drive the elastic structure to contract and close the camera channel, or synchronously move away from the center of the camera channel to cause the elastic structure to relax and open the camera channel.

2. The lens protection device according to claim 1, characterized in that: The lens protection device further includes a protective shell, which is connected to the housing and enclosed with the outer wall of the housing to form a protective space, and the movable part includes: A propulsion rod, which is movably arranged on the shell at intervals along the circumference of the shell, wherein a portion of the propulsion rod is located in the working space and a portion of the propulsion rod extends out of the working space and into the protection space; an annular portion, the annular portion being connected to the propulsion rod and being located in the working space; A pushing portion is connected to the annular portion.

3. The lens protection device according to claim 2, characterized in that: The number of the movable members is six, the intervals between two adjacent movable members are the same, and / or The plurality of annular portions synchronously move toward the center of the camera channel and come together to form a ring.

4. The lens protection device according to claim 1, characterized in that: The pushing portion is an elastic member.

5. The lens protection device according to claim 4, characterized in that: The plurality of elastic members synchronously move toward the center of the camera channel and come together to form a circle, and the center of the circle is located at the axis of the camera channel.

6. The lens protection device according to claim 4, characterized in that: The Shore hardness of the elastic member is in the range of 30 to 50, and / or The elastic member is made of silicone.

7. The lens protection device according to claim 1, characterized in that: The elastic structure is an elastic cloth.

8. The lens protection device according to claim 1, characterized in that: The elastic structure comprises: A conical portion, the conical portion being sealed and connected to an end of the housing away from the camera; A cylindrical portion, wherein the cylindrical portion is communicated with the conical portion, the pushing portion abuts against the cylindrical portion, and the movable member drives the cylindrical portion to close the camera channel or open the camera channel; A folded edge portion, wherein the folded edge portion is connected to the cylindrical portion, and the folded edge portion is sealed and connected to the other end of the shell.

9. The lens protection device according to claim 1, characterized in that: The color of the elastic structure is red.

10. A monitoring device, characterized in that: The invention comprises a lens, a main control unit and a lens protection device as claimed in any one of claims 1 to 9.

Images