CN215647108U - VR monitored control system under water - Google Patents

VR monitored control system under water Download PDF

Info

Publication number
CN215647108U
CN215647108U CN202121729263.8U CN202121729263U CN215647108U CN 215647108 U CN215647108 U CN 215647108U CN 202121729263 U CN202121729263 U CN 202121729263U CN 215647108 U CN215647108 U CN 215647108U
Authority
CN
China
Prior art keywords
monitoring
waterproof
underwater
signal
processing module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202121729263.8U
Other languages
Chinese (zh)
Inventor
白致昊
张海龙
许雪晶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Sunshine Taiding Technology Co ltd
Original Assignee
Beijing Sunshine Taiding Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Sunshine Taiding Technology Co ltd filed Critical Beijing Sunshine Taiding Technology Co ltd
Priority to CN202121729263.8U priority Critical patent/CN215647108U/en
Application granted granted Critical
Publication of CN215647108U publication Critical patent/CN215647108U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Structure And Mechanism Of Cameras (AREA)
  • Studio Devices (AREA)

Abstract

The utility model provides an underwater VR monitoring system, and relates to the technical field of monitoring equipment. The scheme of the utility model is as follows: the method comprises the following steps: the monitoring module, the signal processing module and the VR glasses; a monitoring component: the monitoring assembly comprises a waterproof shell, a monitoring bracket is arranged in the waterproof shell and connected with a monitoring camera, a waterproof shell cover is detachably arranged on the waterproof shell, and transparent toughened glass is arranged on the surface of the waterproof shell; the signal processing module: the signal processing module receives a first signal of the monitoring camera and converts the first signal into a second signal which can be identified by VR glasses; VR glasses: and receiving a second signal of the signal processing module. The utility model can improve the supervision efficiency, and the supervision effect is better and outstanding by checking the scene through the VR technology, thereby facilitating the supervision personnel to make reasonable arrangement on the scene and being beneficial to the progress of engineering.

Description

VR monitored control system under water
Technical Field
The utility model relates to the technical field of monitoring equipment, in particular to an underwater VR monitoring system.
Background
The monitor is a device which records and stores video and audio signals by using a camera storage device; with the increasing popularity of closed circuit monitoring in civil and commercial applications, surveillance cameras are widely used in various fields, and play a role in protecting driving and navigation for enterprise management and social security. The monitor is mainly applied to residential houses, building villas, shopping malls, financial rooms and the like. Depending on the field of application, different types of monitors are required, for example: people use the underwater monitor to observe the growth condition of sea cucumbers, fishes, shellfishes and the like cultured underwater or observe the underwater fishing operation condition and the like.
At present, the monitoring equipment on the market has a single structure, only the shot video is fed back to the working personnel, the working personnel cannot look over the scene personally on the scene, and reasonable arrangement is not convenient for being made on the scene.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an underwater VR monitoring system which can improve the supervision efficiency, enables the supervision effect to be better and prominent, facilitates supervision personnel to reasonably arrange the site and is beneficial to the progress of engineering by checking the site through a VR technology.
The embodiment of the utility model is realized by the following steps:
the embodiment of the application provides an VR monitored control system under water, includes: the monitoring module, the signal processing module and the VR glasses; a monitoring component: the monitoring assembly comprises a waterproof shell, a monitoring bracket is arranged in the waterproof shell and connected with a monitoring camera, a waterproof shell cover is detachably arranged on the waterproof shell, and transparent toughened glass is arranged on the surface of the waterproof shell; the signal processing module: the signal processing module receives a first signal of the monitoring camera and converts the first signal into a second signal which can be identified by VR glasses; VR glasses: and receiving a second signal of the signal processing module.
In some embodiments of the present invention, the outer sidewall of one side of the waterproof housing is provided with a screw thread, the inner sidewall of one side of the waterproof housing cover is provided with a screw thread, and the waterproof housing is connected with the waterproof housing cover through the screw thread.
In some embodiments of the present invention, the monitor camera is mounted in the middle of the mounting substrate, the mounting substrate is detachably mounted with a plurality of illuminating lamps, and the plurality of illuminating lamps are located outside the monitor camera.
In some embodiments of the present invention, the plurality of illumination lamps are all connected to the mounting substrate by bolts.
In some embodiments of the present invention, a vibration-proof assembly is installed between the monitoring bracket and the waterproof housing.
In some embodiments of the present invention, the shockproof assembly includes a return spring and a limiting assembly for preventing the return spring from being dislocated, one end of the return spring is connected to the waterproof housing, the other end of the return spring is connected to the monitoring bracket, and the limiting assembly is sleeved outside the return spring.
In some embodiments of the present invention, the limiting assembly is composed of a plurality of telescopic joints, the plurality of telescopic joints are sequentially connected, the head end of the telescopic joint is connected to the waterproof housing, and the tail end of the telescopic joint is connected to the monitoring support.
In some embodiments of the present invention, the monitoring device further includes a first bevel gear, the first bevel gear is sleeved on the monitoring support and is rotatably connected to the waterproof housing, the first bevel gear is engaged with a second bevel gear, and the second bevel gear is connected to a driving member.
In some embodiments of the present invention, the waterproof housing is connected to a counterweight chamber, and the counterweight chamber is provided with a chamber door.
In some embodiments of the present invention, a waterproof rubber is disposed between the waterproof housing cover and the waterproof housing.
Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:
an underwater VR monitoring system comprising: the monitoring module, the signal processing module and the VR glasses; a monitoring component: the monitoring assembly comprises a waterproof shell, a monitoring bracket is arranged in the waterproof shell and connected with a monitoring camera, a waterproof shell cover is detachably arranged on the waterproof shell, and transparent toughened glass is arranged on the surface of the waterproof shell; the signal processing module: the signal processing module receives a first signal of the monitoring camera and converts the first signal into a second signal which can be identified by VR glasses; VR glasses: and receiving a second signal of the signal processing module.
In the above embodiment, an underwater VR monitoring system comprises three parts, namely a monitoring component, a signal processing module and VR glasses, wherein the monitoring component can be placed in lakes, rivers and the like and monitors underwater environment in real time, the monitoring component transmits underwater monitoring information to the signal processing module, the signal processing module converts the underwater monitoring information into a signal (HDMI) which can be recognized by the VR glasses and then transmits the signal to the VR glasses, and a worker can monitor the underwater environment in person through the VR glasses and monitor the underwater environment more intuitively and clearly, wherein the monitoring component comprises a waterproof shell, a waterproof shell cover is detachably mounted on the waterproof shell (the detachable mounting mode can be threaded fit), the waterproof shell and the waterproof shell cover can be detached to debug and maintain a monitoring camera inside the waterproof shell, and a monitoring support is mounted at the bottom of the monitoring camera, the inside wall of control leg joint in waterproof casing plays the effect that supports to the surveillance camera head, and is further, the surface mounting of waterproof casing has transparent toughened glass, and toughened glass installs in the ring side of waterproof casing, and the surveillance camera head sees through toughened glass can monitor the environment under water.
In this embodiment, the surveillance camera head carries out real time monitoring to the environment under water, and the information transmission to the signal processing module of surveillance camera head with the control, signal processing module converts the information of above-mentioned control into signal (HDMI) that VR glasses can discern, then feeds back to the staff, and the staff can be on the spot and monitor the environment under water, can more directly perceivedly clearly monitor the environment under water, improves the monitoring efficiency to the environment under water.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of an underwater VR monitoring system in accordance with an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a monitoring assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of a substrate for mounting and mounting a monitoring camera according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a monitoring camera mounting anti-vibration assembly according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the first bevel gear and the second bevel gear according to the embodiment of the utility model.
The following are marked in the figure: the device comprises a waterproof shell 1, a waterproof shell cover 2, a monitoring bracket 3, a monitoring camera 4, a mounting substrate 5, a lighting lamp 6, a first bevel gear 7, a second bevel gear 8, a driving piece 9, a reset spring 10 and a limiting component 11.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, or an orientation or a positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience and simplicity, and the indication or the suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, the present invention should not be construed as being limited.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "a plurality" represents at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
Please refer to fig. 1-5. This embodiment provides an under water VR monitored control system, includes: the monitoring module, the signal processing module and the VR glasses; a monitoring component: the monitoring assembly comprises a waterproof shell 1, a monitoring bracket 3 is arranged in the waterproof shell 1, the monitoring bracket 3 is connected with a monitoring camera 4, a waterproof shell cover 2 is detachably arranged on the waterproof shell 1, and transparent toughened glass is arranged on the surface of the waterproof shell 1; the signal processing module: the signal processing module receives a first signal of the monitoring camera 4 and converts the first signal into a second signal which can be identified by VR glasses; VR glasses: and receiving a second signal of the signal processing module.
In the above embodiment, an underwater VR monitoring system is composed of three parts, namely a monitoring component, a signal processing module and VR glasses, the monitoring component can be placed in lakes, rivers and the like and monitors underwater environment in real time, the monitoring component transmits underwater monitoring information to the signal processing module, the signal processing module converts the underwater monitoring information into signals (HDMI) which can be recognized by the VR glasses, and then transmits the signals to the VR glasses, and workers can monitor the underwater environment in person through the VR glasses and monitor the underwater environment more intuitively and clearly, wherein the monitoring component is composed of a waterproof shell 1, a waterproof shell cover 2 is detachably mounted on the waterproof shell 1 (the detachable mounting mode can be threaded fit), and the waterproof shell 1 and the waterproof shell cover 2 can debug and maintain a monitoring camera 4 inside the waterproof shell 1 after being detached, monitoring support 3 is installed to monitoring camera 4's bottom, and monitoring support 3 connects and plays the effect that supports monitoring camera 4 in waterproof casing 1's inside wall, and further, waterproof casing 1's surface mounting has transparent toughened glass, and toughened glass installs in waterproof casing 1's ring side, and monitoring camera 4 sees through toughened glass can monitor the environment under water.
In this embodiment, surveillance camera head 4 carries out real time monitoring to the environment under water, and surveillance camera head 4 transmits the information of control to signal processing module, and signal processing module converts the information of above-mentioned control into signal (HDMI) that VR glasses can discern, then feeds back to the staff, and the staff can be on the spot and monitor the environment under water, can more directly perceivedly clearly monitor the environment under water, improves the monitoring efficiency to the environment under water.
In some embodiments of the present invention, the outer sidewall of one side of the waterproof housing 1 is provided with threads, the inner sidewall of one side of the waterproof housing cover 2 is provided with threads, and the waterproof housing 1 is connected with the waterproof housing cover 2 through the threads.
In this embodiment, waterproof casing 1 and waterproof cap 2 pass through screw-thread fit, can easy to assemble and dismantle, can maintain very conveniently at any time to surveillance camera head 4 in the waterproof casing 1.
In some embodiments of the present invention, the monitoring camera 4 is mounted in the middle of the mounting substrate 5, the mounting substrate 5 is detachably mounted with a plurality of illuminating lamps 6, and the plurality of illuminating lamps 6 are located outside the monitoring camera 4.
In this embodiment, install a plurality of light 6 on the mounting substrate 5, a plurality of light 6 can provide a good shooting visual angle for surveillance camera 4, make the information of control more clear.
In some embodiments of the present invention, a plurality of illumination lamps 6 are each bolted to the mounting substrate 5.
In this embodiment, a plurality of light 6 all pass through bolted connection with mounting substrate 5, can make things convenient for the installation and the dismantlement of light 6, and the later maintenance of being convenient for is very convenient.
In some embodiments of the present invention, a shock-proof assembly is installed between the monitoring bracket 3 and the waterproof housing 1.
In this embodiment, the shockproof assembly is located at the bottom of the monitoring bracket 3, and when the waterproof housing 1 descends at the highest speed, the time for buffering the monitoring camera 4 can be given, so that the monitoring camera 4 is prevented from being damaged by collision.
In some embodiments of the present invention, the shockproof assembly includes a return spring 10 and a limiting assembly 11 for preventing the return spring 10 from being dislocated, one end of the return spring 10 is connected to the waterproof housing 1, the other end of the return spring 10 is connected to the monitoring bracket 3, and the limiting assembly 11 is sleeved outside the return spring 10.
In this embodiment, the subassembly that takes precautions against earthquakes comprises reset spring 10 and spacing subassembly 11, and wherein waterproof casing 1 is connected to reset spring 10's one end, and monitoring support 3 is connected to reset spring 10's the other end, and reset spring 10's elasticity can give monitoring camera 4 a buffering time, prevents that monitoring camera 4 from crashing bad, and is further, reset spring 10's outside is located to spacing subassembly 11 cover, and reset spring 10 can only move along length direction, prevents that reset spring 10 from misplacing.
In some embodiments of the present invention, the limiting component 11 is composed of a plurality of telescopic joints, the plurality of telescopic joints are connected in sequence, the head end of the telescopic joints is connected with the waterproof shell 1, and the tail end of the telescopic joints is connected with the monitoring bracket 3.
In this embodiment, the limiting component 11 is composed of a plurality of telescopic joints, and the return spring 10 is wrapped by the plurality of telescopic joints, so that the dislocation of the return spring 10 is prevented.
In some embodiments of the present invention, the monitoring device further comprises a first bevel gear 7, the first bevel gear 7 is sleeved on the monitoring support 3, the first bevel gear 7 is rotatably connected with the waterproof housing 1, the first bevel gear 7 is engaged with a second bevel gear 8, and the second bevel gear 8 is connected with a driving member 9.
In this embodiment, driving piece 9 drives second bevel gear 8 and rotates, and second bevel gear 8 drives first bevel gear 7 and rotates, and first bevel gear 7 drives monitoring support 3 and rotates, and monitoring support 3 drives monitoring camera 4 and rotates, and monitoring camera 4 can acquire the information of more visual angles under water through rotating, improves accuracy and the comprehensiveness to the condition monitoring under water.
In some embodiments of the utility model, a counterweight chamber is connected to the waterproof housing 1, the counterweight chamber being provided with a chamber door.
In this embodiment, waterproof casing 1 is connected with the counter weight storehouse, adds the balancing weight in the counter weight storehouse and can make waterproof casing 1 descend to bottom under water fast, can monitor the operation fast.
In some embodiments of the utility model, a waterproof rubber is provided between the waterproof housing cover 2 and the waterproof housing 1.
In this embodiment, the waterproof rubber is disposed between the waterproof housing cover 2 and the waterproof housing 1 to prevent water from entering the waterproof housing 1, thereby preventing the monitoring camera 4 from being damaged.
To sum up, an embodiment of the present invention provides an underwater VR monitoring system, including: the monitoring module, the signal processing module and the VR glasses; a monitoring component: the monitoring assembly comprises a waterproof shell 1, a monitoring bracket 3 is arranged in the waterproof shell 1, the monitoring bracket 3 is connected with a monitoring camera 4, a waterproof shell cover 2 is detachably arranged on the waterproof shell 1, and transparent toughened glass is arranged on the surface of the waterproof shell 1; the signal processing module: the signal processing module receives a first signal of the monitoring camera 4 and converts the first signal into a second signal which can be identified by VR glasses; VR glasses: and receiving a second signal of the signal processing module.
In the above embodiment, an underwater VR monitoring system is composed of three parts, namely a monitoring component, a signal processing module and VR glasses, the monitoring component can be placed in lakes, rivers and the like and monitors underwater environment in real time, the monitoring component transmits underwater monitoring information to the signal processing module, the signal processing module converts the underwater monitoring information into signals (HDMI) which can be recognized by the VR glasses, and then transmits the signals to the VR glasses, and workers can monitor the underwater environment in person through the VR glasses and monitor the underwater environment more intuitively and clearly, wherein the monitoring component is composed of a waterproof shell 1, a waterproof shell cover 2 is detachably mounted on the waterproof shell 1 (the detachable mounting mode can be threaded fit), and the waterproof shell 1 and the waterproof shell cover 2 can debug and maintain a monitoring camera 4 inside the waterproof shell 1 after being detached, monitoring support 3 is installed to monitoring camera 4's bottom, and monitoring support 3 connects and plays the effect that supports monitoring camera 4 in waterproof casing 1's inside wall, and further, waterproof casing 1's surface mounting has transparent toughened glass, and toughened glass installs in waterproof casing 1's ring side, and monitoring camera 4 sees through toughened glass can monitor the environment under water.
In this embodiment, surveillance camera head 4 carries out real time monitoring to the environment under water, and surveillance camera head 4 transmits the information of control to signal processing module, and signal processing module converts the information of above-mentioned control into signal (HDMI) that VR glasses can discern, then feeds back to the staff, and the staff can be on the spot and monitor the environment under water, can more directly perceivedly clearly monitor the environment under water, improves the monitoring efficiency to the environment under water.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An underwater VR monitoring system comprising: the monitoring module, the signal processing module and the VR glasses;
a monitoring component: the monitoring assembly comprises a waterproof shell, a monitoring bracket is arranged in the waterproof shell and connected with a monitoring camera, a waterproof shell cover is detachably arranged on the waterproof shell, and transparent toughened glass is arranged on the surface of the waterproof shell;
the signal processing module: the signal processing module receives a first signal of the monitoring camera and converts the first signal into a second signal which can be identified by VR glasses;
VR glasses: and receiving a second signal of the signal processing module.
2. The underwater VR monitoring system of claim 1 wherein an outer sidewall of one side of the waterproof housing is threaded and an inner sidewall of one side of the waterproof housing cover is threaded, the waterproof housing and the waterproof housing cover being threadably coupled.
3. The underwater VR monitoring system of claim 1 further comprising a mounting substrate, wherein the monitoring camera is mounted in a middle portion of the mounting substrate, and a plurality of illuminating lamps are detachably mounted on the mounting substrate and are located outside the monitoring camera.
4. The underwater VR monitoring system of claim 3 wherein a plurality of the lights are bolted to the mounting substrate.
5. An underwater VR monitoring system as in claim 1 where a shock assembly is mounted between the monitoring support and the waterproof housing.
6. The underwater VR monitoring system of claim 5, wherein the anti-vibration assembly comprises a return spring and a limiting assembly for preventing the return spring from being dislocated, one end of the return spring is connected with the waterproof housing, the other end of the return spring is connected with the monitoring support, and the limiting assembly is sleeved outside the return spring.
7. The underwater VR monitoring system of claim 6 wherein the limiting assembly is comprised of a plurality of telescoping sections, the telescoping sections are sequentially connected and have a head end connected to the waterproof housing and a tail end connected to the monitoring support.
8. The underwater VR monitoring system of claim 1 further comprising a first bevel gear sleeved on the monitoring support and rotatably connected to the waterproof housing, wherein the first bevel gear is engaged with a second bevel gear, and a driving member is connected to the second bevel gear.
9. The underwater VR monitoring system of claim 1 wherein a counterweight chamber is coupled to the waterproof housing, the counterweight chamber having a chamber door.
10. An underwater VR monitoring system as in claim 1 where a waterproof rubber is disposed between the waterproof housing cover and the waterproof housing.
CN202121729263.8U 2021-07-27 2021-07-27 VR monitored control system under water Active CN215647108U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121729263.8U CN215647108U (en) 2021-07-27 2021-07-27 VR monitored control system under water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121729263.8U CN215647108U (en) 2021-07-27 2021-07-27 VR monitored control system under water

Publications (1)

Publication Number Publication Date
CN215647108U true CN215647108U (en) 2022-01-25

Family

ID=79892847

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121729263.8U Active CN215647108U (en) 2021-07-27 2021-07-27 VR monitored control system under water

Country Status (1)

Country Link
CN (1) CN215647108U (en)

Similar Documents

Publication Publication Date Title
CN201118843Y (en) Monitoring device for night vision panorama camera
CN215647108U (en) VR monitored control system under water
CN201860380U (en) Panoramic monitoring camera
CN207366010U (en) It is a kind of to be used for unattended computer room safety monitoring device
CN220775943U (en) Remote infrared online real-time monitoring device for warehouse logistics
CN204498268U (en) Intelligent monitoring and controlling device
CN209472675U (en) A kind of visual monitoring equipment with auto-alarm function
CN214504673U (en) Multifunctional automatic fire alarm practical training device
CN217883622U (en) Surveying and mapping device capable of recording measurement conditions
CN215581482U (en) Hidden security protection supervisory equipment
CN209962379U (en) Intelligent off-line monitoring box
CN208509044U (en) A kind of fixed device of the protection of video monitoring equipment
CN212565436U (en) Lamp shell structure for LED illuminating lamp
CN202757594U (en) Abnormal revolution sensing device for fixed camera and camera device
CN209993066U (en) Wireless household fire alarm
CN203242098U (en) Visible light imaging forest fire prevention monitoring system
CN111714817A (en) Automatic tracking and positioning jet fire extinguishing small gun
CN209587537U (en) A kind of long-range individual-soldier system based on security alarm
CN112104800A (en) Portable all-weather fire-fighting camera
CN213244125U (en) A multi-functional outdoor surveillance camera head for security protection
CN218064216U (en) Concealed camera for electronic and intelligent engineering monitoring system
CN220651388U (en) Double-confirmation fire alarm fire extinguishing system
CN218825737U (en) Remote fire-fighting monitoring alarm
CN210518553U (en) Security protection house device
CN217634863U (en) Rotary holder

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant