CN114554139A

CN114554139A - Digital-video integrated remote measuring terminal

Info

Publication number: CN114554139A
Application number: CN202111247343.4A
Authority: CN
Inventors: 王海兵; 张晓华; 洪炜; 王友旭; 曲红磊; 王居予
Original assignee: Jiangsu Shuike Shangyu Energy Technology Research Institute Co ltd
Current assignee: Jiangsu Shuike Shangyu Energy Technology Research Institute Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-05-27

Abstract

The invention relates to a digital-video integrated telemetering terminal. The digital-video integrated telemetering terminal comprises a terminal body, wherein the terminal body comprises a body shell, an electrical assembly is arranged inside the body shell, a sealing control door is connected to the outer surface of the body shell, the sealing control door is detachably connected with the body shell, a waterproof knob and a display screen body are arranged on the surface of the sealing control door, the waterproof knob and the display screen body are both connected with the electrical assembly, the electrical assembly comprises a control module and a transmission module, a monitoring base is fixedly connected to the outer surface of the body shell, a monitoring assembly is arranged inside the monitoring base, the control module in the electrical assembly is connected with the monitoring assembly, the monitoring assembly acquires image information and transmits the image information to the control module, and the control module outputs the image information to a background computer through the transmission module; the digital-video integrated remote measuring terminal has the advantages of simple structure, convenience in operation, flexibility in use, convenience in coping with complex environments, low preparation cost and convenience in popularization and use.

Description

Digital-video integrated remote measuring terminal

Technical Field

The invention belongs to the technical field of remote measuring terminals, and particularly relates to a digital-video integrated remote measuring terminal.

Background

In the end of the nineties, with the rapid improvement of network bandwidth, computer processing capacity and storage capacity and the emergence of various practical video compression processing technologies, video monitoring technologies step into the full-digital network era, and digital video monitoring systems rely on networks, are centered on compression, transmission, storage and playing of digital videos, and feature intelligent and practical image understanding and analysis, thereby initiating the technical revolution of the video monitoring industry.

The digital video monitoring system is composed of video monitoring front-end equipment, a video monitoring center and a communication network. The front-end equipment (installed in a monitoring field) of the digital video monitoring system comprises video acquisition equipment, coding equipment (a camera, a video server, an encoder and the like) and communication equipment (such as an Ethernet switch, a fiber-optic transceiver, a 3G router, ADSLMODEM and the like).

The basic structure of the water regime (including mountain torrent disasters) monitoring system comprises a water regime monitoring station, a monitoring central station and a data communication link. The basic contents of the regimen monitoring comprise: the system is used for collecting, transmitting and storing data such as rainfall, water level, flow, sedimentation, displacement, infrasonic wave, water temperature, evaporation, soil moisture, water quality, water quantity, gate opening and the like in real time, and sending the data to a monitoring central station in real time for data processing and forecasting and early warning application. The water regime monitoring station consists of a sensor, a remote measuring terminal, communication equipment and a power supply system, and the core equipment of the monitoring station is the remote measuring terminal.

The remote-measuring terminal can automatically complete the collection, storage, coding, transmission and control of the water regime monitoring data, can be connected with communication equipment and automatically complete the data transmission.

The technical scheme commonly used in the market at present is as follows: the regimen monitoring system and the video monitoring system are spatially located at the same remote monitoring station, but are physically configured by two mutually independent subsystems; the front-end equipment of the regimen monitoring system consists of a sensor, a remote measuring terminal, communication equipment and a power supply system; because the data volume is not large, the requirement on the communication network bandwidth is not high, and the data volume can be Beidou satellite, GSM short message, GPRS, PSTN, ultrashort wave and the like; the power consumption of the front-end equipment of the water regime monitoring system is small, the total power consumption of all the equipment is generally lower than 200mW, and the reliable power supply of the equipment can be guaranteed by adopting a solar cell. The front end of a video acquisition device of the digital video monitoring system usually consists of a camera, a video encoder and a communication device, and due to large data volume, the transmission of the digital video monitoring system generally adopts broadband networks such as optical fiber dedicated lines, ADSL, microwaves, 3G and the like.

Because the telemetering terminal is generally installed outdoors for use, when the telemetering terminal is used in cooperation with a video monitoring and image transmission assembly, attention needs to be paid to the sealing performance of the whole telemetering terminal; meanwhile, the video monitoring end can deal with outdoor severe environment, ensures high definition of a lens, is long in service life and reduces the cost of regular maintenance of workers.

Disclosure of Invention

The invention aims to solve the problems and provide a digital-video integrated telemetering terminal which is simple in structure and reasonable in design.

The invention realizes the purpose through the following technical scheme:

the utility model provides a telemonitoring terminal machine that digital-visual fuses, includes the terminal organism, the terminal organism includes engine body shell, engine body shell's inside is provided with electric assembly, engine body shell's surface is connected with sealed control door, sealed control door can dismantle with engine body shell and be connected, sealed control door's surface is provided with waterproof knob and display screen body, waterproof knob, display screen body all are connected with electric assembly, including control module and transmission module in the electric assembly, engine body shell's fixed surface is connected with the control base, the inside of control base is provided with the control subassembly, control module and the control subassembly in the electric assembly are connected, the control subassembly gathers image information and transmits to control module, control module exports image information to backstage computer through transmission module.

As a further optimization scheme of the invention, the monitoring base comprises a base shell, an observation window is arranged on the outer surface of the base shell, the acquisition end of the monitoring assembly corresponds to the observation window, a protective lens covers the surface of the observation window, a replacement assembly is arranged in the base shell, the control module judges whether the protective lens needs to be replaced or not based on image information acquired by the monitoring assembly, and if the protective lens needs to be replaced, a new protective lens is replaced by the replacement assembly to cover the observation window.

As a further optimization scheme of the invention, the control module is based on image information collected by the monitoring component. Judging whether the protective lens needs to be replaced, specifically, judging whether the definition of the image information meets a set standard or not based on the image information collected by the monitoring assembly, and starting a replacement assembly if the definition of the image information does not meet the set standard; and judging whether stain information exists in the image information or not based on the image information acquired by the monitoring assembly, and if so, starting the replacement assembly.

As a further optimization scheme of the invention, a lifting assembly is fixedly connected inside the base shell, a control end of the lifting assembly is connected with a control module, the lifting assembly is connected with the protective lenses, the number of the protective lenses is a plurality of groups, the protective lenses are vertically arranged, and the lifting assembly drives the protective lenses to move, so that the protective lenses covering the observation window are replaced.

As a further optimization scheme of the invention, the plurality of groups of protective lenses are replaced by driving the plurality of groups of protective lenses to move downwards based on the lifting assembly, and the protective lenses are replaced step by step.

As a further optimized scheme of the present invention, the inner wall of the base housing is connected with a first pressing member, the first pressing member is disposed around the observation window, the inner wall of the base housing is connected with an inner frame body, the protection lens is located between the inner frame body and the observation window, the surface of the inner frame body close to the protection lens is connected with a second pressing member, and the second pressing member is also disposed around the observation window.

As a further optimized scheme of the present invention, the first compressing member and the second compressing member are both expandable bladders, when the protective lens is replaced, the first compressing member and the second compressing member contract, and when the protective lens is completely replaced, the first compressing member and the second compressing member expand to a limit state.

As a further optimized scheme of the invention, a connecting shaft rod is fixedly connected to the lifting end of the lifting assembly, a gear member is fixedly connected to the outer surface of the connecting shaft rod, a toothed belt member is connected to the inside of the base shell, the gear member is matched with the toothed belt member, a toothed shaft member is meshed with the outer surface of the toothed belt member, the toothed shaft member is connected to the inner wall of the base shell, a piston rod member is movably connected to the outer surface of the toothed shaft member, a piston pipe member is connected to the inside of the base shell, the piston member in the piston pipe member is connected to the piston rod member, the piston pipe member is connected to a connecting air pipe member, and the connecting air pipe member is connected to the first compressing member and the second compressing member.

As a further optimization scheme of the present invention, when the lifting assembly drives the protection lens to move downward, the gear component drives the gear component to move, so as to drive the gear shaft component to rotate, when the upper end of the initial protection lens moves to the middle position of the observation window, the piston component in the piston pipe component moves to the lowest point, at this time, the first pressing component and the second pressing component are both in the contracted limit state, when the new protection lens covers the observation window, the piston component moves to the highest point, at this time, the first pressing component and the second pressing component are both in the expanded limit state, and the first pressing component and the second pressing component press the protection lens.

As a further optimized scheme of the invention, the toothed belt piece is a surrounding toothed belt body, and elastic gaskets are arranged on the inner wall of the base shell and the outer wall of the inner pressing frame body.

The invention has the beneficial effects that: the invention has better sealing protection capability, can well prevent water and dust, is convenient for outdoor use, and meanwhile, the machine body shell is connected with the monitoring base, the monitoring component is arranged in the monitoring base, video image information is collected through the monitoring component and is transmitted through the transmission module, so that the remote monitoring capability of the terminal machine is convenient to improve; in addition, the lens replacing component is arranged in the lens, so that the lens can be replaced and used automatically when the lens is fuzzy and has stains, the maintenance cost of maintenance personnel is effectively reduced, and the monitoring efficiency is improved; the whole device is simple in structure, convenient to operate, flexible to use, convenient to use in complex environments, low in preparation cost and convenient to popularize and use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a side view of the FIG. 1 construction of the present invention;

FIG. 3 is a side view of the FIG. 2 embodiment of the present invention;

FIG. 4 is a schematic structural view of the monitoring base of the present invention;

FIG. 5 is a schematic view of the internal structure of the base housing of the present invention;

FIG. 6 is a schematic view of the construction of the connecting shaft of the present invention;

FIG. 7 is an enlarged schematic view of the invention at A in FIG. 5;

fig. 8 is a structural schematic diagram of the pressing member of the present invention.

In the figure: 1. a terminal body; 11. a body housing; 12. an electrical component; 2. sealing the control door; 21. a waterproof knob; 22. a display screen body; 23. a protective door assembly; 3. monitoring the base; 31. a base housing; 32. an observation window; 33. a monitoring component; 41. a protective lens; 42. pressing the frame body; 43. an elastic pad; 44. a first pressing member; 45. a second pressing member; 46. a lifting assembly; 47. connecting the shaft lever; 48. a toothed belt member; 49. a pinion shaft member; 51. a piston tube; 52. a piston rod; 53. connecting the gas pipe fittings.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

Example 1

As shown in fig. 1 to 8, a digital-visual fused telemetry terminal comprises a terminal body 1, wherein the terminal body 1 comprises a body housing 11, an electrical component 12 is arranged inside the body housing 11, a sealed control door 2 is connected to the outer surface of the body housing 11, the sealed control door 2 is detachably connected to the body housing 11, a waterproof knob 21 and a display screen 22 are arranged on the surface of the sealed control door 2, the waterproof knob 21 and the display screen 22 are both connected to the electrical component 12, the electrical component 12 comprises a control module and a transmission module, the outer surface of the body housing 11 is fixedly connected to a monitoring base 3, a monitoring component 33 is arranged inside the monitoring base 3, the control module in the electrical component 12 is connected to the monitoring component 33, and the monitoring component 33 collects image information and transmits the image information to the control module, the control module outputs the image information to the background computer through the transmission module.

The electrical component 12 includes a processor of a DSP and an ARM architecture, a memory cell, an internal memory disk, and a controller, where the controller, i.e., the control module, may be an AT89C51 single chip microcomputer, and the transmission module may be a zhongxing AD38123G module, which has a strong wireless connection capability.

In the actual use, engine body shell 11's surface still articulates there is protection door subassembly 23, as shown in fig. 2, hides waterproof knob 21 through protection door subassembly 23, further strengthens the protection to the knob, simultaneously, sets up in some road departments, can prevent that other people from taking place because of circumstances such as curiosity touching.

The monitoring base 3 comprises a base shell 31, an observation window 32 is formed in the outer surface of the base shell 31, the collection end of the monitoring component 33 corresponds to the observation window 32, a protective lens 41 covers the surface of the observation window 32, a replacement component is arranged in the base shell 31, the control module judges whether the protective lens 41 needs to be replaced or not based on image information collected by the monitoring component 33, and if the protective lens 41 needs to be replaced, the protective lens 41 which is replaced by the replacement component covers the observation window 32.

Further, the control module is based on the image information collected by the monitoring component 33. A method for judging whether the protective lens 41 needs to be replaced, specifically, judging whether the definition of the image information meets a set standard based on the image information collected by the monitoring component 33, and if not, starting the replacement component; based on the image information collected by the monitoring component 33, whether stain information exists in the image information is judged, and if the stain information exists, the replacement component is started. The definition judgment can select to carry out gray processing on the collected image, judge the definition condition of the collected image based on the gray level, and select other image data processing modes.

Further, the inside fixedly connected with lifting unit 46 of base casing 31, lifting unit 46's control end is connected with control module, lifting unit 46 with protection lens 41 is connected, the quantity of protection lens 41 is a plurality of groups, a plurality of groups the vertical range of protection lens 41 is through lifting unit 46 drive protection lens 41 removal to the change covers the protection lens 41 of observation window 32. In this embodiment, the lifting assembly 46 can be a stepping motor used in conjunction with a screw rod rotation driving sleeve member, the stepping motor in this embodiment is a motor that converts an electrical pulse signal into an angular displacement to control the rotation of a rotor, and the stepping motor is used as an actuator in an automatic control device, and advances one step for each input of a pulse signal, so the stepping motor is also called a pulse motor, and is often used in devices such as external devices of digital computers, printers, plotters, and magnetic disks. The driving power supply of the stepping motor consists of a variable-frequency pulse signal source, a pulse distributor and a pulse amplifier, and the driving power supply provides pulse current for the motor winding. The running performance of the stepping motor is determined by the good matching between the motor and the driving power supply, and the stepping motor has the advantages of no accumulated error, simple structure, convenient use and maintenance and low manufacturing cost.

The plurality of groups of protective lenses 41 are replaced by driving the plurality of groups of protective lenses 41 to move downwards based on the lifting assembly 46, and the protective lenses are replaced step by step. By adopting the downward moving mode, the dust at the bottom of the observation window 32 can be prevented from influencing the lens when the lens moves upward.

Further, the inner wall of the base housing 31 is connected with a first pressing member 44, the first pressing member 44 surrounds the observation window 32, the inner wall of the base housing 31 is connected with an inner pressing frame body 42, the protection lens 41 is located between the inner pressing frame body 42 and the observation window 32, the surface of the inner pressing frame body 42 close to the protection lens 41 is connected with a second pressing member 45, and the second pressing member 45 also surrounds the observation window 32.

In this embodiment, the first pressing member 44 and the second pressing member 45 are both inflatable bladders, when the protection lens 41 is replaced, the first pressing member 44 and the second pressing member 45 are deflated, and when the protection lens 41 is completely replaced, the first pressing member 44 and the second pressing member 45 are inflated to the limit state.

Further, a connecting shaft rod 47 is fixedly connected to the lifting end of the lifting assembly 46, a gear piece is fixedly connected to the outer surface of the connecting shaft rod 47, a toothed belt piece 48 is connected to the inside of the base shell 31, the gear piece is matched with the toothed belt piece 48, a toothed shaft piece 49 is meshed to the outer surface of the toothed belt piece 48, the toothed shaft piece 49 is connected to the inner wall of the base shell 31, a piston rod piece 52 is movably connected to the outer surface of the toothed shaft piece 49, a piston pipe piece 51 is connected to the inside of the base shell 31, a piston piece in the piston pipe piece 51 is connected to the piston rod piece 52, the piston pipe piece 51 is connected to a connecting air pipe piece 53, and the connecting air pipe piece 53 is connected to the first pressing piece 44 and the second pressing piece 45.

Specifically, when the lifting assembly 46 drives the protection lens 41 to move downward, the gear member drives the toothed belt member 48 to move, so as to drive the toothed shaft member 49 to rotate, when the upper end of the initial protection lens 41 moves to the middle position of the observation window 32, the piston member in the piston pipe member 51 moves to the lowest point, at this time, the first pressing member 44 and the second pressing member 45 are both in the contracted limit state, when the new protection lens 41 finishes covering the observation window 32, the piston member moves to the highest point, at this time, the first pressing member 44 and the second pressing member 45 are both in the expanded limit state, and the first pressing member 44 and the second pressing member 45 press the protection lens 41.

The toothed belt 48 is a circular toothed belt (similar to a small-sized conveying belt) supported by at least two sets of rollers, the toothed belt 48 is fixedly connected with the base shell 31 through the rollers, the inner wall of the base shell 31 and the outer wall of the inner pressing frame 42 are both provided with elastic gaskets 43, the elastic gaskets 43 can only slightly limit the lenses, and the two pressing members are still required for matching and clamping during reinforcement.

It should be noted that, in the digital-video integrated telemetry terminal, in this embodiment, the number of the protective lenses 41 is three, the length of each protective lens 41 is greater than that of the observation window 32, and the extra parts are loss allowance parts which may cause abrasion with the pressing member when sliding; in practical use, the shrinkage of the first pressing member 41 located at the outer side is much smaller than that of the second pressing member 42, in order to reduce the entry of impurities into the base housing 31, and if necessary, the shrinkage can be eliminated, and the lens can be moved and clamped only by the shrinkage and expansion of the second pressing member 45, wherein the elastic gasket 43 also plays a certain role in limiting sliding; the base housing 31 is cylindrical in the drawing of the present embodiment, but in actual use, a rectangular parallelepiped housing may be selected for use.

The digital-video integrated remote measuring terminal has better sealing protection capability, can be well waterproof and dustproof, and is convenient to use outdoors, meanwhile, the machine body shell 11 is connected with the monitoring base 3, the monitoring component 33 is arranged in the monitoring base 3, video image information is collected through the monitoring component 33 and is transmitted through the transmission module, and the remote monitoring capability of the terminal is convenient to improve; in addition, the lens replacing component is arranged in the lens, so that the lens can be replaced and used automatically when the lens is fuzzy and has stains, the maintenance cost of maintenance personnel is effectively reduced, and the monitoring efficiency is improved; the whole device is simple in structure, convenient to operate, flexible to use, convenient to use in complex environments, low in preparation cost and convenient to popularize and use.

In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. A telemetering terminal with digital video integration is characterized by comprising a terminal body, wherein the terminal body comprises a body shell, the interior of the machine body shell is provided with an electrical component, the outer surface of the machine body shell is connected with a sealing control door, the sealing control door is detachably connected with the machine body shell, a waterproof knob and a display screen body are arranged on the surface of the sealing control door, the waterproof knob and the display screen body are both connected with an electrical component, the electrical component comprises a control module and a transmission module, the outer surface of the machine body shell is fixedly connected with a monitoring base, a monitoring component is arranged in the monitoring base, the control module in the electric assembly is connected with the monitoring assembly, the monitoring assembly collects image information and transmits the image information to the control module, and the control module outputs the image information to the background computer through the transmission module.

2. The digital video fusion telemetry terminal of claim 1, wherein: the monitoring base comprises a base shell, an observation window is formed in the outer surface of the base shell, the collecting end of the monitoring assembly corresponds to the observation window, a protective lens covers the surface of the observation window, a replacing assembly is arranged in the base shell, the control module judges whether the protective lens needs to be replaced or not based on image information collected by the monitoring assembly, and if the protective lens needs to be replaced, the protective lens which is replaced by the replacing assembly covers the observation window.

3. The digital video fusion telemetry terminal of claim 2, wherein: the control module is used for judging whether the protective lens needs to be replaced or not based on the image information acquired by the monitoring assembly, specifically, judging whether the definition of the image information meets a set standard or not based on the image information acquired by the monitoring assembly, and starting the replacement assembly if the definition of the image information does not meet the set standard; and judging whether stain information exists in the image information or not based on the image information acquired by the monitoring assembly, and if so, starting the replacement assembly.

4. The digital video fusion telemetry terminal of claim 3, wherein: the inside fixedly connected with lifting unit of base casing, lifting unit's control end is connected with control module, lifting unit with the protection lens is connected, the quantity of protection lens is a plurality of groups, a plurality of groups the vertical range of protection lens is through the removal of lifting unit drive protection lens to change the protection lens that covers observation window.

5. The digital video fusion telemetry terminal of claim 4, wherein: the replacement mode of the plurality of groups of protective lenses is that based on the lifting assembly, the plurality of groups of protective lenses are driven to move downwards and are replaced step by step.

6. The digital video fusion telemetry terminal of claim 5, wherein: the inner wall of base casing is connected with the first piece that compresses tightly, the first piece that compresses tightly centers on observation window sets up, the inner wall of base casing is connected with interior pressure support body, the protection lens is located press between support body and the observation window in, the surface that interior pressure support body is close to the protection lens is connected with the second and compresses tightly the piece, the second compresses tightly the piece and centers on likewise observation window sets up.

7. The digital video fusion telemetry terminal of claim 6, wherein: the first pressing piece and the second pressing piece are both expandable capsules, when the protective lens is replaced, the first pressing piece and the second pressing piece contract, and when the protective lens is replaced, the first pressing piece and the second pressing piece expand to the limit state.

8. The digital video converged telemetry terminal of claim 7, wherein: the lifting assembly is characterized in that a connecting shaft rod is fixedly connected with the lifting end of the lifting assembly, a gear piece is fixedly connected to the outer surface of the connecting shaft rod, a toothed belt piece is connected to the inner portion of the base shell, the gear piece is matched with the toothed belt piece, a toothed shaft piece is meshed with the outer surface of the toothed belt piece and connected with the inner wall of the base shell, a piston rod piece is movably connected to the outer surface of the toothed shaft piece, a piston pipe piece is connected to the inner portion of the base shell, the piston piece in the piston pipe piece is connected with the piston rod piece, the piston pipe piece is connected with a connecting gas pipe piece, and the connecting gas pipe piece is connected with the first compressing piece and the second compressing piece.

9. The digital video converged telemetry terminal of claim 8, wherein: when the lifting assembly drives the protective lens to move downwards, the gear piece drives the toothed belt piece to move, so that the toothed shaft piece is driven to rotate, when the upper end of the initial protective lens moves to the middle position of the observation window, the piston piece in the piston pipe piece moves to the lowest point, the first pressing piece and the second pressing piece are both in the contracted limit state at the moment, when the new protective lens covers the observation window, the piston piece moves to the highest point, the first pressing piece and the second pressing piece are both in the expanded limit state at the moment, and the first pressing piece and the second pressing piece press the protective lens.

10. The digital video fusion telemetry terminal of claim 9, wherein: the toothed belt piece is a surrounding toothed belt body, and the inner wall of the base shell and the outer wall of the inner pressing frame body are both provided with elastic gaskets.