CN213403254U - Intrinsic safety type miner lamp recorder and coal mine underground law enforcement recording system - Google Patents
Intrinsic safety type miner lamp recorder and coal mine underground law enforcement recording system Download PDFInfo
- Publication number
- CN213403254U CN213403254U CN202022478791.2U CN202022478791U CN213403254U CN 213403254 U CN213403254 U CN 213403254U CN 202022478791 U CN202022478791 U CN 202022478791U CN 213403254 U CN213403254 U CN 213403254U
- Authority
- CN
- China
- Prior art keywords
- lamp
- communication
- unit
- intrinsically safe
- recorder
- 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
Links
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The application discloses an intrinsically safe miner lamp recorder and a coal mine underground law enforcement recording system, wherein the intrinsically safe miner lamp recorder comprises a lamp holder, a cap lamp wire and an intrinsically safe multifunctional lamp box, and a central control unit, a battery unit, a communication and acquisition unit and a cap lamp connecting unit are arranged in the intrinsically safe multifunctional lamp box; the central control unit is in communication connection with the communication and acquisition unit, and the battery unit respectively supplies power to the central control unit and the communication and acquisition unit; the lamp holder is separably connected with the cap lamp connecting unit through the cap lamp wire, when the lamp holder is connected with the cap lamp connecting unit, the lamp holder is in communication connection with the central control unit, and the battery unit supplies power to the lamp holder. This application has integrateed well accuse unit, communication and the collection unit in this ampere of type multifunctional lamp box, regards this ampere of type multifunctional lamp box as the law enforcement record appearance, fuses miner's lamp and law enforcement record appearance as an organic whole, and need not increase extra equipment, both conveniently wears, makes the explosion-proof requirement that the law enforcement record appearance satisfied borehole operation simultaneously.
Description
Technical Field
The application relates to the technical field of coal mine law enforcement recording, in particular to an intrinsically safe miner lamp recorder and a coal mine underground law enforcement recording system.
Background
In the coal mine underground law enforcement, a law enforcement recorder is required to be used for carrying out law enforcement recording, but the law enforcement recorder in the market only considers the business application of non-explosion-proof occasions, and a special explosion-proof law enforcement recorder is not specially designed for the environment with explosive gas in the coal mine underground. Some law enforcement recorders are explosion-proof, but need to wear additional equipment, have increased personnel's burden in the pit, have also increased the maintenance cost. Some information miner's lamps integrate the functions of communication, safety monitoring and the like, but the information miner's lamps integrate communication equipment such as cameras and the like on the lamp head of the miner's lamp, but a communication main board is arranged on a lamp box, at least 5 core wires are required to be pulled far to transmit video and audio, the equipment complexity is high, and the production and maintenance are not easy.
SUMMERY OF THE UTILITY MODEL
The application aims to overcome the defects of the prior art and provides the intrinsic safety type miner lamp recorder with convenient wearing and simple structure and the underground coal mine law enforcement recording system.
The technical scheme of the application provides an intrinsically safe miner lamp recorder which comprises a lamp holder, a cap lamp wire and an intrinsically safe multifunctional lamp box, wherein a central control unit, a battery unit, a communication and acquisition unit and a cap lamp connecting unit are arranged in the intrinsically safe multifunctional lamp box;
the central control unit is in communication connection with the communication and acquisition unit, and the battery unit respectively supplies power to the central control unit and the communication and acquisition unit;
the lamp holder is detachably connected with the cap lamp connecting unit through the cap lamp wire, when the lamp holder is connected with the cap lamp connecting unit, the lamp holder is in communication connection with the central control unit, and the battery unit supplies power to the lamp holder.
Further, the battery unit comprises a power button and a battery, wherein the power button is electrically connected with the battery;
the intrinsically safe multifunctional lamp box is internally provided with a battery box, and the battery is detachably arranged in the battery box.
Furthermore, the communication and acquisition unit comprises a voice acquisition and playing component, an image acquisition and playing component and a data transmission module;
the voice acquisition and playing component, the image acquisition and playing component and the data transmission module are respectively in communication connection with the central control unit.
Furthermore, the communication and acquisition unit also comprises a first communication button and a second communication button;
the first communication button is in communication connection with the voice acquisition and playing assembly through the central control unit, and the second communication button is in communication connection with the voice acquisition and playing assembly and the image acquisition and playing assembly through the central control unit.
Furthermore, the communication and acquisition unit also comprises an acquisition button;
the acquisition button is in communication connection with the image acquisition and playing assembly through the central control unit.
Further, the voice capture and playback component includes an anti-noise microphone and an anti-noise speaker.
Further, the image acquisition and playing assembly comprises a camera and a display screen.
Further, the data transmission module is a sixth generation wireless local area network transmission module.
The technical scheme of the application also provides a coal mine underground law enforcement recording system which comprises a ground dispatching center, a wireless local area network base station and at least one intrinsic safety type mining lamp recorder, wherein the intrinsic safety type mining lamp recorder is in communication connection with the bottom surface dispatching center through the wireless local area network base station.
Further, the wlan base station is a sixth generation wlan base station.
After adopting above-mentioned technical scheme, have following beneficial effect:
this application has integrateed well accuse unit, communication and the collection unit in this ampere of type multifunctional lamp box, regards this ampere of type multifunctional lamp box as the law enforcement record appearance, fuses miner's lamp and law enforcement record appearance as an organic whole, and need not increase extra equipment, both conveniently wears, makes the explosion-proof requirement that the law enforcement record appearance satisfied borehole operation simultaneously.
Drawings
The disclosure of the present application will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present application. In the figure:
FIG. 1 is a schematic diagram of an embodiment of the present application;
fig. 2 is a perspective view of an intrinsically safe multifunctional lamp box in an intrinsically safe miner's lamp recorder in an embodiment of the present application;
FIG. 3 is a front view of an intrinsically safe multifunctional lamp housing in an intrinsically safe miner's lamp recorder in an embodiment of the application;
fig. 4 is a left side view of an intrinsically safe multifunctional lamp box in an intrinsically safe miner's lamp recorder in an embodiment of the present application;
fig. 5 is a bottom view of an intrinsically safe multifunctional lamp box in an intrinsically safe miner's lamp recorder in an embodiment of the present application;
FIG. 6 is a schematic system diagram of a coal mine underground law enforcement recording system according to an embodiment of the present application.
Detailed Description
Embodiments of the present application are further described below with reference to the accompanying drawings.
It is easily understood that according to the technical solutions of the present application, those skilled in the art can substitute various structures and implementations without changing the spirit of the present application. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present application, and should not be construed as limiting or restricting the technical solutions of the present application in their entirety.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Throughout the description of the present application, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "coupled" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The foregoing is to be understood as belonging to the specific meanings in the present application as appropriate to the person of ordinary skill in the art.
This ampere of type miner's lamp record appearance:
as shown in fig. 1, the intrinsically safe miner's lamp recorder in the embodiment of the application includes a lamp head 001, a cap lamp wire 002, and an intrinsically safe multifunctional lamp box 003, wherein the intrinsically safe multifunctional lamp box 003 is provided with a central control unit 01, a battery unit 02, a communication and acquisition unit 03, and a cap lamp connection unit 04;
the central control unit 01 is in communication connection with the communication and acquisition unit 03, and the battery unit 02 respectively supplies power to the central control unit 01 and the communication and acquisition unit 03;
the lamp head 001 is detachably connected with the cap lamp connecting unit 04 through the cap lamp wire 002, when the lamp head 001 is connected with the cap lamp connecting unit 04, the lamp head 001 is in communication connection with the central control unit 01, and the battery unit 02 supplies power to the lamp head 001.
In the embodiment of the application, the central control unit 01 and the communication and acquisition unit 03 are integrated in the intrinsically safe multifunctional lamp box 003, so that the intrinsically safe multifunctional lamp box 003 has the functions of a law enforcement recorder, can realize the law enforcement functions such as conversation and video recording, and also has the safety explosion-proof function.
The lamp head 001 is separably connected with the cap lamp connecting unit 04 of the intrinsically safe multifunctional lamp box 003 through the cap lamp wire 002, the cap lamp connecting unit 04 is specifically a cap lamp wire connecting port, and the cap lamp wire 002 is inserted into the cap lamp wire connecting port to electrically connect the lamp head 001 with the central control unit 01 and the battery unit 02.
This ampere of type miner's lamp record appearance in this application embodiment combines together miner's lamp and law enforcement record appearance, and need not increase extra equipment, both conveniently wear, makes the law enforcement record appearance satisfy borehole operation's explosion-proof requirement simultaneously.
In one embodiment, the battery unit 02 comprises a power button 21 (see fig. 1 and 2) and a battery 22, the power button 21 is electrically connected with the battery 22, and the intrinsically safe miner's lamp recorder can be turned on or off by opening and closing the power button 21;
the intrinsically safe multifunctional lamp cartridge 003 is provided therein with a battery case 05 (see fig. 3 and 4), and a battery 22 (not shown in fig. 2 to 4) is detachably mounted in the battery case 05.
Specifically, the battery unit 02 supplies power to the central control unit 01, the communication and acquisition unit 03 and the lamp head 001 at the same time, a power management module may be disposed in the central control unit 01, the battery unit 02 supplies power to the communication and acquisition unit 03 and the lamp head 001 which are connected to the central control unit 01 through the battery management module, and the power management module may be a voltage raising/lowering module.
As an example, as shown in fig. 3 and 4, a battery case 05 is provided on one side of the intrinsically safe multifunctional lamp case 003, and the battery 22 is inserted into the battery case 05 to be connected to a circuit. Due to the long time of the underground operation, the operation of the intrinsically safe miner's lamp recorder can be maintained by replacing the battery by detaching and installing the card provided with the battery 22.
Preferably, as shown in fig. 3 and 4, the battery unit 02 may further include a charging interface 23, the charging interface 23 is electrically connected to the battery box 05, the charging interface 23 is connected to a power source through a power line, and the battery 22 mounted in the battery box 05 can be charged.
In the embodiment of the present application, the battery 22 is detachably mounted in the intrinsically safe multifunctional lamp case 003, and can maintain the operation by replacing the battery, which is suitable for long-time operation in the pit.
In one embodiment, the communication and acquisition unit 03 comprises a voice acquisition and playing component 31, an image acquisition and playing component 32 and a data transmission module 33;
the voice collecting and playing component 31, the image collecting and playing component 32 and the data transmission module 33 are respectively in communication connection with the central control unit 01.
Particularly, the voice collecting and playing component 31 is used for collecting voice and playing voice in the call process between the underground personnel and the ground dispatching center, and comprises an anti-noise microphone 311 and an anti-noise loudspeaker 312 which both have anti-noise functions, so that noise in the call process is reduced, and the call quality is guaranteed.
The image capturing and playing component 32 is used for capturing videos and playing videos during a call, and is also used for capturing downhole working videos and images, and comprises a camera 321 and a display screen 322. The camera 321 can adopt a star light level low-illumination high-definition camera, so that video and image shooting can be ensured in a dark environment under a coal mine, and a built-in DSP chip improves video call quality and image acquisition definition; the display screen 322 is a high-definition display screen, and can display images and videos in real time.
The data transmission module 33 is used for data transmission and real-time communication with the ground dispatching center, and a sixth generation wireless local area network transmission module (WiFi6 module) is adopted, so that video, voice and data can be connected to a WiFi6 transmission base station in a mine through a wireless local area network, and then transmitted to the ground dispatching center through optical fibers.
In the embodiment of the present application, the central control unit 01 controls the voice collecting and playing component 31, the image collecting and playing component 32, and the data transmission module 33, so that the communication and collecting unit 03 has functions of a law enforcement recorder such as voice call, video image collection, and the like, and the law enforcement recorder is integrated in the intrinsically safe multifunctional lamp box 003.
In one embodiment, as shown in fig. 1, the communication and acquisition unit 03 further comprises a first communication button 34 and a second communication button 35;
the first communication button 34 is in communication connection with the voice collecting and playing component 31 through the central control unit 01, and the second communication button 35 is in communication connection with the voice collecting and playing component 31 and the image collecting and playing component 32 through the central control unit 01.
Specifically, the first communication button 34 is set as an intercom button, an intercom request is sent to the central control unit 01 by pressing the first communication button 34, the central control unit 01 sends an intercom request to the ground dispatching center through the data transmission module after receiving the intercom request, intercom with the ground dispatching center is established, and the intercom process carries out voice collection and playing through the voice collection and playing component 31.
The second communication button 35 is set as a voice/video call button, and by pressing the second communication button 35, a voice/video call request is sent to the central control unit 01, and after receiving the voice/video call request, the central control unit 01 sends a call request to the ground dispatching center through the data transmission module, and establishes a call with the ground dispatching center.
As an example, if the second communication button 35 is pressed for two seconds, a voice call request is sent, and the voice collection and playing component 31 collects and plays voice in the call process; and if the second communication button 35 is pressed for more than five seconds, sending a video call request, acquiring and playing voice through the voice acquisition and playing component 31 in the process, and acquiring and playing video through the image acquisition and playing component 32.
In the embodiment of the application, the first communication button 34 and the second communication button 35 are arranged, so that the system can initiate talkback or voice/video conversation with a ground dispatching center, and has multiple communication functions.
In one embodiment, as shown in fig. 1, the communication and acquisition unit 03 further includes an acquisition button 36, and the acquisition button 36 is communicatively connected to the image acquisition and playing assembly 32 through the central control unit 01.
Specifically, the capture button 36 is configured as a shooting/recording button, and by pressing the capture button 36, a shooting/recording request is sent to the central control unit 01, and the central control unit 01 receives the shooting/recording request and controls the image capturing and playing component 32 to perform shooting/recording operations.
As an example, pressing the capture button 36 for a short period of two seconds, the image capture and playback component 32 takes a picture and stores it; the collection button 36 is pressed for more than five seconds, the image collection and playing component 32 starts to record the video, and the video recording is finished when the collection button 36 is pressed again in the video recording process.
In the embodiment of the application, the collection button 36 is arranged, shooting/video recording operation can be performed through the collection button 36, the camera shooting function of the image collection and playing component 32 is utilized, and shooting/video recording archiving is performed on the underground working condition.
Fig. 1-5 are schematic diagrams of an intrinsically safe miner's lamp recorder in a preferred embodiment of the present application, the intrinsically safe miner's lamp recorder includes a lamp head 001 and a cap lamp wire 002, and further includes an intrinsically safe multifunctional lamp box 003, and a central control unit 01, a battery unit 02, a communication and acquisition unit 03 and a cap lamp connection unit 04 are arranged in the intrinsically safe multifunctional lamp box 003;
the central control unit 01 is in communication connection with the communication and acquisition unit 03, and the battery unit 02 respectively supplies power to the central control unit 01 and the communication and acquisition unit 03.
Fig. 2 to 5 show the appearance of the intrinsically safe multifunctional lamp cartridge 003, the cap lamp connecting unit 04 is a cap lamp first connecting port provided on one side of the intrinsically safe multifunctional lamp cartridge 003, the lamp head 001 is detachably connected to the cap lamp connecting unit 04 through a cap lamp wire 002, when the lamp head 001 is connected to the cap lamp connecting unit 04, the lamp head 001 is in communication connection with the central control unit 01, and the battery unit 02 supplies power to the lamp head 001.
The battery unit 02 comprises a power button 21 and a battery 22 (not shown in fig. 2-5), a battery box 05 is arranged in the intrinsically safe multifunctional lamp box 003, the battery 22 is detachably installed in the battery box 05, and a charging interface 23 is further connected with the battery box 05 and used for connecting a power supply to charge the battery installed in the battery box 05. The power button 21 is electrically connected to the battery 22, and the intrinsically safe miner's lamp recorder can be turned on or off by opening and closing the power button 21.
The central control unit 01 is installed inside the intrinsically safe multifunctional lamp box 003, and specifically is a central control main board, wherein an intrinsically safe control circuit is integrated for controlling the communication and acquisition unit 03 and the lamp holder 001.
The communication and acquisition unit 03 comprises a voice acquisition and playing component 31 composed of an anti-noise microphone 311 and an anti-noise loudspeaker 312, an image acquisition and playing component 32 composed of a camera 321 and a display screen 322, and a data transmission module 33 for data transmission and real-time communication with a ground dispatch center. The camera 321 and the display screen 322 are partially exposed on the outer box of the intrinsically safe multifunctional lamp box 003; the anti-noise microphone 311 and the anti-noise speaker 312 are both installed in the intrinsically safe multifunctional lamp case 003, and the intrinsically safe multifunctional lamp case 003 is provided with openings at the positions of the sound receiving port of the anti-noise microphone 311 and the speaker port of the anti-noise speaker 312 for recording and playing of voice signals.
The communicator collecting unit 03 is further provided with a first communication button 34, a second communication button 35 and a collecting button 36, the first communication button 34 is in communication connection with the voice collecting and playing component 31 through the central control unit 01, the second communication button 35 is in communication connection with the voice collecting and playing component 31 and the image collecting and playing component 32 through the central control unit 01, and the collecting button 36 is in communication connection with the image collecting and playing component 32 through the central control unit 01. The first communication button 34, the second communication button 35 and the capture button 36 are respectively configured as an intercom button, a voice/video call button and a shooting/recording button, and the specific functions thereof are described in the foregoing embodiments and are not described herein again.
This ampere of type miner's lamp record appearance in this application embodiment, this ampere of type multifunctional lamp box structural design is compact portable, fuses miner's lamp and law enforcement record appearance as an organic whole, and simple structure conveniently wears to satisfy the explosion-proof requirement of borehole operation.
Coal mine underground law enforcement recording system:
fig. 6 shows an underground coal mine law enforcement recording system according to an embodiment of the present application, which includes a ground dispatch center 100, a wireless lan base station 200, and at least one intrinsically safe miner light recorder 300 according to any one of the foregoing embodiments, where the intrinsically safe miner light recorder 300 is in communication connection with the ground dispatch center 100 through the wireless lan base station 200.
In the embodiment of the application, the intrinsically safe miner lamp recorder 300 of the application is used for executing law enforcement record and is communicated with the ground dispatching center 100 through the wireless local area network base station 200. Specifically, the intrinsically safe miner's lamp recorder 300 establishes a connection with a wireless local area network base station 200 disposed in the underground through a data transmission module thereof, and transmits data to the wireless local area network base station 200 and then to the ground dispatch center 100 through an optical fiber.
Preferably, the wlan base station 200 is a sixth generation wlan base station, and can be connected to a plurality of intrinsically safe miner's lamp recorders 300 at the same time, so as to effectively solve data congestion and delay and achieve faster data transmission.
The technical effects of the intrinsically safe miner's lamp recorder are described in the foregoing embodiment, and a coal mine underground law enforcement recording system including the intrinsically safe miner's lamp recorder should also have the same technical effects, which are not described herein again.
What has been described above is merely the principles and preferred embodiments of the present application. It should be noted that, for a person skilled in the art, several other modifications can be made on the basis of the principle of the present application, and these should also be considered as the scope of protection of the present application.
Claims (10)
1. An intrinsically safe miner lamp recorder comprises a lamp holder and a cap lamp wire and is characterized by further comprising an intrinsically safe multifunctional lamp box, wherein a central control unit, a battery unit, a communication and acquisition unit and a cap lamp connecting unit are arranged in the intrinsically safe multifunctional lamp box;
the central control unit is in communication connection with the communication and acquisition unit, and the battery unit respectively supplies power to the central control unit and the communication and acquisition unit;
the lamp holder is detachably connected with the cap lamp connecting unit through the cap lamp wire, when the lamp holder is connected with the cap lamp connecting unit, the lamp holder is in communication connection with the central control unit, and the battery unit supplies power to the lamp holder.
2. The intrinsically safe miner's lamp recorder of claim 1, wherein the battery unit includes a power button and a battery, the power button being electrically connected to the battery;
the intrinsically safe multifunctional lamp box is internally provided with a battery box, and the battery is detachably arranged in the battery box.
3. The intrinsically safe miner's lamp recorder of claim 1, wherein the communication and acquisition unit includes a voice acquisition and playback assembly, an image acquisition and playback assembly, and a data transmission module;
the voice acquisition and playing component, the image acquisition and playing component and the data transmission module are respectively in communication connection with the central control unit.
4. The intrinsically safe miner's lamp recorder of claim 3, wherein the communication and acquisition unit further comprises a first communication button and a second communication button;
the first communication button is in communication connection with the voice acquisition and playing assembly through the central control unit, and the second communication button is in communication connection with the voice acquisition and playing assembly and the image acquisition and playing assembly through the central control unit.
5. The intrinsically safe miner's lamp recorder of claim 4, wherein the communication and acquisition unit further includes an acquisition button;
the acquisition button is in communication connection with the image acquisition and playing assembly through the central control unit.
6. The intrinsically-safe miner's lamp recorder of claim 3, wherein the voice capture and playback assembly includes an anti-noise microphone and an anti-noise speaker.
7. The intrinsically safe miner's lamp recorder of claim 3, wherein the image capture and playback assembly includes a camera and a display screen.
8. The intrinsically safe miner's lamp recorder of claim 3, wherein the data transmission module is a sixth generation wireless local area network transmission module.
9. A coal mine underground law enforcement recording system, characterized by comprising a ground dispatch center, a wireless local area network base station and at least one intrinsically safe miner lamp recorder according to any one of claims 1-8, wherein the intrinsically safe miner lamp recorder is in communication connection with the ground dispatch center through the wireless local area network base station.
10. The coal mine underground law enforcement recording system of claim 9 wherein the wireless local area network base station is a sixth generation wireless local area network base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022478791.2U CN213403254U (en) | 2020-10-30 | 2020-10-30 | Intrinsic safety type miner lamp recorder and coal mine underground law enforcement recording system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022478791.2U CN213403254U (en) | 2020-10-30 | 2020-10-30 | Intrinsic safety type miner lamp recorder and coal mine underground law enforcement recording system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213403254U true CN213403254U (en) | 2021-06-08 |
Family
ID=76192062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022478791.2U Active CN213403254U (en) | 2020-10-30 | 2020-10-30 | Intrinsic safety type miner lamp recorder and coal mine underground law enforcement recording system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213403254U (en) |
-
2020
- 2020-10-30 CN CN202022478791.2U patent/CN213403254U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105939458A (en) | Visual positioning digital intercom type audio/video recorder | |
| CN204070722U (en) | A kind of multifunctional safety helmet | |
| CN201266988Y (en) | Digital image monitoring system | |
| CN210690977U (en) | Police law enforcement recording glasses and real-time online evidence obtaining system | |
| CN213403254U (en) | Intrinsic safety type miner lamp recorder and coal mine underground law enforcement recording system | |
| CN102957888A (en) | Wireless fidelity (WiFi)-communication-based portable audio and video transmission and recording device | |
| CN205195877U (en) | Video conversation law enforcement record appearance | |
| CN203261412U (en) | Real-time monitoring system for on-site safe operation of power transmission line | |
| CN212650487U (en) | Wearable intelligent wearable equipment for overhauling subway vehicle | |
| CN203136056U (en) | Bidirectional visual voice intercommunication system for operations conducted high aboveground | |
| CN202873006U (en) | Police trunking interphone provided with law enforcement recorder | |
| CN108419161B (en) | A kind of detachable earphone based on big data | |
| CN106791538B (en) | Digital display circuit for circuit court | |
| CN205647771U (en) | Visual location numeral type audio frequency and video records appearance of talkbacking | |
| CN205693828U (en) | Hand-held mining hand microphone | |
| CN208509286U (en) | A kind of single alert equipment of customs preventive law enforcement | |
| CN210690976U (en) | Evidence obtaining glasses and evidence obtaining system comprising same | |
| CN105657384A (en) | Intelligent cat eye | |
| CN207766359U (en) | A kind of high definition 4G law-enforcing recorders of external positioning formula | |
| CN203788410U (en) | Intelligent safety vest | |
| KR20170008470A (en) | Use converting system with terminal having camera module | |
| CN206313925U (en) | Outdoor study monitoring device | |
| CN209950472U (en) | Visual command system of electric power operation scene | |
| CN212163615U (en) | Microphone capable of live broadcasting and recording video | |
| CN205584376U (en) | Intelligence cat eye |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220901 Address after: 168 Beijing Middle Road, Jinfeng District, Yinchuan City, Ningxia Hui Autonomous Region Patentee after: National Energy Group Ningxia Coal Industry Co.,Ltd. Patentee after: Ningxia Coal Science & Technology Research Institution Co.,Ltd. Address before: 168 Beijing Middle Road, Jinfeng District, Yinchuan City, Ningxia Hui Autonomous Region Patentee before: National Energy Group Ningxia Coal Industry Co.,Ltd. |