CN204929003U - But wireless appearance of making a video recording of exchange of data's mining NULL - Google Patents
But wireless appearance of making a video recording of exchange of data's mining NULL Download PDFInfo
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- CN204929003U CN204929003U CN201520698403.8U CN201520698403U CN204929003U CN 204929003 U CN204929003 U CN 204929003U CN 201520698403 U CN201520698403 U CN 201520698403U CN 204929003 U CN204929003 U CN 204929003U
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- power supply
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Abstract
The utility model discloses a but wireless appearance of making a video recording of exchange of data's mining NULL has solved the problem that current installation cost is high, very inconvenience is maintained in the installation, its characterized in that still includes flameproof and intrinsically safe power supply unit, video acquisition unit, video coding unit, network switching unit, audio frequency unit, wireless transmitting unit, the flameproof and intrinsically safe power supply unit is to each unit power supply, video acquisition unit connection video coding unit, video coding unit linked network crosspoint, audio frequency unit, wireless transmitting unit, the network switching unit is equipped with two light mouths and three RJ45 electricity mouth. The utility model discloses but wireless transmission phonotape and videotape information realizes multi -functional, many transmission, realizes the 2 -5 platform and makes a video recording the appearance and cascade, has reduced data transmission line, easy to assemble and maintenance, can realize that central dispatch Center and video on -the -spot are point -to -pointly talkbacked, the group calling, group busy.
Description
Technical field
The utility model relates to a kind of video camera, relates to a kind of mining wireless camera instrument or rather.
Background technology
The CCTV camera that underground coal mine uses is generally numeral or the analog video camera of function singleness, and during installation, the image information of every platform camera acquisition all will be pooled to intermediate switching equipment by wire, is then transferred to ground monitoring center.In the larger region of CCTV camera density because circuit is too many, the phenomenon that cost is high, installation and maintenance are very inconvenient can be caused.
Summary of the invention
The purpose of this utility model is to overcome the mine explosion-suppression and intrinsic safety type wireless camera instrument that the deficiencies in the prior art provide a kind of exchange data, easy to use, and comprehensive function is strong, has multiple transmission means.
The utility model comprises closed shell, microphone, characterized by further comprising flameproof and intrinsically safe power supply's unit, video acquisition unit, video encoding unit, network exchange unit, audio unit, wireless transmitting unit; Flameproof and intrinsically safe power supply's unit is connected with video acquisition unit, video encoding unit, network exchange unit, audio unit, wireless transmitting unit respectively, powers to each unit; Video acquisition unit connects video encoding unit, video encoding unit interconnection network crosspoint, audio unit, wireless transmitting unit; Audio unit connects microphone; Network exchange unit is provided with two Guang Kou and three RJ45 electricity mouths.
As shown from the above technical solution, the utility model has following beneficial effect: in video camera, devise exchanges data, audio call, warning, radio transmitting device, can wireless transmission audiovisual/visual information, there is multiple optical, electrical interface, thus make video camera achieve multi-functional, multiple transmission modes; Owing to having exchange capacity, video camera can realize the cascade of 2-5 platform video camera, greatly reduces data transmission link, reduces cost, facilitate installation and maintenance, improve reliability; Point-to-point intercommunication, the group calling of central dispatching center and video presence can be realized, group busy; The key of video presence to control centre can be realized report to the police and the video pictures of this video camera of automatic spring.
Accompanying drawing explanation
Accompanying drawing is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in drawings, the utility model is made up of flameproof and intrinsically safe power supply's unit, video acquisition unit, video encoding unit, network exchange unit, audio unit, wireless transmitting unit, microphone, antenna etc.; Flameproof and intrinsically safe power supply's unit is connected with video acquisition unit, video encoding unit, network exchange unit, audio unit, wireless transmitting unit respectively; Video acquisition unit connects video encoding unit, video encoding unit interconnection network crosspoint, audio unit, wireless transmitting unit; Audio unit connects microphone.
Input voltage is that the alternating current of 127V is protected by switching power circuit step-down rectifier, voltage stabilizing, overcurrent dual by flameproof and intrinsically safe power supply's unit, and the 12V direct current of stable output is powered to each unit.
The picture signal that camera lens is taken in by video acquisition unit becomes analog video signal to be transported to video encoding unit by CMOS sensitive chip and circuit conversion thereof.
The audio signal that analog video signal and microphone MC collect is passed through digital coding by video encoding unit, be converted to network digital signal and be transported to network exchange unit and wireless transmitting unit respectively, the phonological component that network imports into is resolved to audio signal is transported to audio unit simultaneously.
Network digital signal is converted to wireless WiFi signal by wireless transmitting unit, and transmitting power is 20dbm, meets communications protocol IEEE802.11b/g, with base station communication distance 150m farthest.
Network exchange unit is provided with two Guang Kou and three RJ45 electricity mouths, and light mouth and electric mouth all have data exchanging function.Audio-video signal outwards can be exported by the light mouth of network exchange unit or electric mouth, and other network informations can by the access of this unit, forwarding.Various network camera instrument can carry out cascade by network exchange unit, and identical video camera can cascade 2-5 platform.
Audio unit is made up of audio frequency amplification, loud speaker, high sensitivity microphone and the echo control circuit that disappears, and loud speaker loudness sound level can reach more than 80db, meets the session requirements of control room and video presence.
The key technical indexes of the present utility model:
Operating voltage: AC127V; Operating current :≤1A.
Picture quality: horizontal definition: be not less than 500TVL; Tonal gradation: be not less than 7 grades; Ambient light illumination 10Lx.
Audio frequency parameter: frequency range: 350Hz ~ 3000Hz; Call sound level (dBA): >=85 (when MIC inputs 1kHz, 50mV); Voice distortion degree :≤15%.
Ethernet light signal exports: interface quantity 2; Optical wavelength: 1310nm; Light emitting power: (-15 ~ 0) dBm/ (0.03162mW ~ 1mW); Optical receiver sensitivity :-25dBm; Transmission means: ICP/IP protocol; Transmission rate: 100Mbps.
Ethernet electric signal interface performance (intrinsic safety): interface quantity: 2; Transmission means: full duplex TCP/IP Ethernet electric signal transmission agreement; Transmission rate: 10/100Mbps self adaptation; Signal work Voltage Peak peak value: 1.5V ~ 5.0V.
Wireless parameter: communications protocol: IEEE802.11g; Working channel: 1,6,11 channels; Wireless operating frequency: (2400 ~ 2483.5) MHz; Transmitting power: (-30 ~ 0) dBm(antenna measurement); Receiving sensitivity :≤-80dBm.
Claims (1)
1. the mine explosion-suppression and intrinsic safety type wireless camera instrument of an exchange data, comprise closed shell, microphone, characterized by further comprising flameproof and intrinsically safe power supply's unit, video acquisition unit, video encoding unit, network exchange unit, audio unit, wireless transmitting unit; Flameproof and intrinsically safe power supply's unit is connected with video acquisition unit, video encoding unit, network exchange unit, audio unit, wireless transmitting unit respectively, powers to each unit; Video acquisition unit connects video encoding unit, video encoding unit interconnection network crosspoint, audio unit, wireless transmitting unit; Audio unit connects microphone; Network exchange unit is provided with two Guang Kou and three RJ45 electricity mouths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520698403.8U CN204929003U (en) | 2015-09-10 | 2015-09-10 | But wireless appearance of making a video recording of exchange of data's mining NULL |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520698403.8U CN204929003U (en) | 2015-09-10 | 2015-09-10 | But wireless appearance of making a video recording of exchange of data's mining NULL |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204929003U true CN204929003U (en) | 2015-12-30 |
Family
ID=54978097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520698403.8U Expired - Fee Related CN204929003U (en) | 2015-09-10 | 2015-09-10 | But wireless appearance of making a video recording of exchange of data's mining NULL |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204929003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023206937A1 (en) * | 2022-04-25 | 2023-11-02 | 三一重型装备有限公司 | Wireless data transmission system of boring machine camera |
-
2015
- 2015-09-10 CN CN201520698403.8U patent/CN204929003U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023206937A1 (en) * | 2022-04-25 | 2023-11-02 | 三一重型装备有限公司 | Wireless data transmission system of boring machine camera |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20170910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |