CN203775340U - Mine leakage cable video transmission system - Google Patents
Mine leakage cable video transmission system Download PDFInfo
- Publication number
- CN203775340U CN203775340U CN201420117795.XU CN201420117795U CN203775340U CN 203775340 U CN203775340 U CN 203775340U CN 201420117795 U CN201420117795 U CN 201420117795U CN 203775340 U CN203775340 U CN 203775340U
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- China
- Prior art keywords
- video
- leaky cable
- mine
- base station
- transmission system
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Abstract
The utility model discloses a mine leakage cable video transmission system which includes underground miner lights, a leakage cable and at least one group of video signal acquisition terminal. Each video signal acquisition terminal includes a camera and a plurality of coders connected with the camera. The plurality of coders are connected with a digital transmitting base station. The digital transmitting base station is in communication with a leakage cable antenna transmitter through a filter I. A leakage cable antenna shunt and a filter II are sequentially arranged on the leakage cable. The filter II is in communication with a digital reception base station. The digital reception base station is connected with a decoder. The decoder is connected with a video display. The mine leakage cable video transmission system is simple in structure, complete in function and capable of preventing dead zones and time delay of video images without increasing a huge investment under the prior mine underground monitoring network conditions so that high-quality image video transmission can be realized and a technical problem of meeting production demands is solved.
Description
Technical field
The utility model relates to a kind of mine leaky cable Video transmission system.
Background technology
Driving face is followed in coal mine gallery, tunnel, to on depth & wideth, constantly expand, tunnel, tunnel are generally longer, and turn more, branch road, in addition in tunnel, branch road is many, there is dead band, dead angle, in such little space, similar lobby, tend to occur not having signal phenomenon, cause downhole communication quality to be greatly affected greatly.Although if adopt Ultra-low frequency communication can reduce decay, improve signal transmission distance, exist antenna volume large, transmitting received power is large, this conflicts mutually with downhole safety requirement of explosion proof, and signal volume is little, bandwidth is low, is not suitable for real-time many transfer of data such as voice, image.When ensureing Video coding efficiency, how the real-time video coding under existing low-bandwidth condition and transmission become the key of video acquisition under coal mine.
Utility model content
An object of the present utility model is how to solve without increasing huge input, can realize and reduce signal dead band, dead angle, in such little space, similar lobby, realizes high quality image transmission of video, meets the technical problem of production requirement.
To achieve these goals, the utility model has adopted following technical scheme:
A kind of mine leaky cable Video transmission system, it comprises down-hole mine lamp, leaky cable and at least one group of video signal collective terminal, described video signal collective terminal comprises camera, a plurality of encoders that are connected with camera, described a plurality of encoder is connected with digital transmission base station, described digital transmission base station is by filter I and the communication of leaky cable antenna emitter, on described leaky cable, be provided with successively leaky cable antenna splitting device and filter II, described filter II and digital received base station communication, described digital received base station is connected with decoder, decoder is connected with video display.
The lens edge of described down-hole mine lamp is provided with identification point, and described encoder comprises the dsp chip being respectively equipped with and the Data Buffer Memory being connected with described dsp chip with described decoder.
In described encoder, between described dsp chip and described camera, be also provided with video input processor, described video input processor is SAA7113.
Between described leaky cable and described leaky cable antenna splitting device, be also provided with repeater.Avoid signal attenuation, the transmission that is conducive to inhibit signal is stable.
Operation principle of the present utility model; meeting under down-hole low-light (level), explosion-proof, dustproof, antimagnetic job requirements prerequisite; in conjunction with leaky cable; utilize limited bandwidth to realize at downhole video image transmitting in scope far away; and can add amplifier or wireless digital microwave relay conveyer to extend transmission distance, monitoring distance can reach tens of kilometers; Later maintenance is simple and convenient: system configuration is simple, breaks down and searches easily, easy to maintenance, simple and reliable.
The utility model beneficial effect:
The utility model is simple in structure, and complete function, under existing coal mine underground monitoring network condition, without increasing huge input, and is avoided the time delay of dead band and video image, can realize high quality image transmission of video, meets the technical problem of production requirement.
Accompanying drawing explanation
Fig. 1 is the utility model mine leaky cable Video transmission system schematic diagram;
Fig. 2 is that the utility model encoder internal main is wanted structural representation;
Wherein: 1. down-hole mine lamp, 2. camera, 3. encoder, 4. digital transmission base station, 5. filter I, 6. leaky cable antenna emitter, 7. repeater, 8. leaky cable antenna splitting device, 9. filter II, 10. digital received base station, 11. decoders, 12. video displays.13. video input processors, 14.DSP chip, 15 Data Buffer Memories.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail
Fig. 1, in Fig. 2, implemented a kind of mine leaky cable Video transmission system, it comprises down-hole mine lamp 1, leaky cable and at least one group of video signal collective terminal, described video signal collective terminal comprises camera 2, a plurality of encoders 3 that are connected with camera 2, described a plurality of encoder 3 is connected with digital transmission base station 4, described digital transmission base station 4 is by filter I5 and 6 communications of leaky cable antenna emitter, on described leaky cable, be provided with successively leaky cable antenna splitting device 8 and filter II9, described filter II9 and 10 communications of digital received base station, described digital received base station 10 is connected with decoder 11, decoder 11 is connected with video display 12.
The lens edge of described down-hole mine lamp 1 is provided with identification point, be conducive under down-hole low-light (level), explosion-proof, dustproof, antimagnetic operating condition, 2 pairs of image effective field of view limits of camera catch and determine, described encoder comprises the dsp chip 14 being respectively equipped with and the Data Buffer Memory 15 being connected with described dsp chip 14 with described decoder; Between the interior described dsp chip 14 of encoder 3 and described camera 2, be also provided with video input processor 13, described video input processor 13 is SAA7113.
Between leaky cable and leaky cable antenna splitting device 8, be also provided with repeater 7.Pass through I
2c bus is connected with dsp chip 14.
In NAL stream, the visual stream information of compression storage, by encoder converting circuit, through modulation, and is transmitted in mine laneway by radiating circuit.Utilize leaky cable and after relaying amplification, filtering, visual stream information uploaded to ground digital and receive base station, decoder 11 decompresses according to H264 standard, and reduction half-tone information, reduction Video stream information, complete video and show.
Mine lamp can be fixed in hoistway and also can integrate with camera, on mine lamp, can establish identification point, can be located at lens edge, make camera follow the tracks of the mine lamp irradiation visual field, the effective coverage maximum that mine lamp carries out video acquisition, and then form video pixel encoding stream.
In utility model by gathering video image, to after image compression, by leaky cable and aboveground antenna splitting device communication, through digital received base station, receive afterwards.Again through the decoding circuit demonstration of decoding.
It is evident that; the description of above-mentioned embodiment; not that design of the present utility model and scope are limited; do not departing under technical solutions of the utility model prerequisite, any distortion that those of ordinary skills make technical scheme and improvement still belong to protection range of the present utility model.
Claims (4)
1. a mine leaky cable Video transmission system, it is characterized in that, it comprises down-hole mine lamp, leaky cable and at least one group of video signal collective terminal, described video signal collective terminal comprises camera, a plurality of encoders that are connected with camera, described a plurality of encoder is connected with digital transmission base station, described digital transmission base station is by filter I and the communication of leaky cable antenna emitter, on described leaky cable, be provided with successively leaky cable antenna splitting device and filter II, described filter II and digital received base station communication, described digital received base station is connected with decoder, decoder is connected with video display.
2. mine as claimed in claim 1 leaky cable Video transmission system, it is characterized in that, the lens edge of described down-hole mine lamp is provided with identification point, and described encoder comprises the dsp chip being respectively equipped with and the Data Buffer Memory being connected with described dsp chip with described decoder.
3. mine as claimed in claim 2 leaky cable Video transmission system, is characterized in that, in described encoder, between described dsp chip and described camera, is also provided with video input processor, and described video input processor is SAA7113.
4. mine as claimed in claim 1 leaky cable Video transmission system, is characterized in that, between described leaky cable and described leaky cable antenna splitting device, is also provided with repeater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420117795.XU CN203775340U (en) | 2014-03-14 | 2014-03-14 | Mine leakage cable video transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420117795.XU CN203775340U (en) | 2014-03-14 | 2014-03-14 | Mine leakage cable video transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203775340U true CN203775340U (en) | 2014-08-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420117795.XU Expired - Fee Related CN203775340U (en) | 2014-03-14 | 2014-03-14 | Mine leakage cable video transmission system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203775340U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826106A (en) * | 2014-03-14 | 2014-05-28 | 山东科技大学 | Mine leakage cable video transmission method and system |
-
2014
- 2014-03-14 CN CN201420117795.XU patent/CN203775340U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826106A (en) * | 2014-03-14 | 2014-05-28 | 山东科技大学 | Mine leakage cable video transmission method and system |
| CN103826106B (en) * | 2014-03-14 | 2017-05-10 | 山东科技大学 | mine leakage cable video transmission method and system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20170314 |