CN106385571A - Video monitoring system - Google Patents
Video monitoring system Download PDFInfo
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- CN106385571A CN106385571A CN201610995736.6A CN201610995736A CN106385571A CN 106385571 A CN106385571 A CN 106385571A CN 201610995736 A CN201610995736 A CN 201610995736A CN 106385571 A CN106385571 A CN 106385571A
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- video monitoring
- modular converter
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- sampling resistor
- video
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 56
- 239000011159 matrix material Substances 0.000 claims abstract description 10
- 238000004891 communication Methods 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 238000005070 sampling Methods 0.000 claims description 39
- 239000013307 optical fiber Substances 0.000 claims description 19
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 2
- 238000013500 data storage Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The invention relates to a video monitoring system, and particularly to a video monitoring system which can effectively store video information for a long time. The video monitoring system overcomes a problem of relatively low redundancy in prior art. The video monitoring system is composed of a video monitoring central server and a plurality of video monitoring terminals which are mounted on video monitoring points. The video monitoring central server comprises an administrator computer, a DMR digital matrix, a large-screen display device, a medium server, a playing server and a fiber router. Each video monitoring terminal comprises a master control module, a fiber transceiver, a storage module, an antitheft alarm module, a clock module, a resetting control module, a high-resolution camera and a power supply module. According to the video monitoring system, the high-resolution camera is utilized in each video monitoring terminal, thereby ensuring high resolution of a photographed image. Furthermore the antitheft alarm module and fiber communication technology are utilized, thereby ensuring high reality and real-time transmission of the video. Furthermore by means of a double-power-supply powering system, power supplying redundancy of the system is improved, and high continuity of the photographed video is ensured.
Description
Technical field
The present invention relates to video monitoring system, specially a kind of video prison that permanently effective can preserve video image data
Control system.
Background technology
Developing rapidly and information technology, the developing rapidly of network technology with national economy, monitoring system is in every profession and trade
Application day by day extensive, monitoring system has not been only in sector applications such as communication, traffic, safety.It is progressively to other
Industry, the public is developed in direction.With computer, network and image procossing, the developing rapidly of transmission technology, Video Supervision Technique
Also there is significant progress.The condition of public security increasingly sophisticated, public safety problem constantly highlights, city crime project, means
Constantly update, upgrade.The video monitoring system puted prevention first with active, solution of emergent event are accelerated development in these all an urgent demands
City emergency crime prevention system become new security protection and build focus.
China's Video Surveillance Industry experienced three phases altogether, is analog video monitor stages, digital video monitoring respectively
Stage, Network Video Surveillance stage.Just from simulation-to-digital transition, digital video monitoring becomes in Chinese Video Surveillance market
The main flow in market.The real change giving the brand-new meaning of video monitoring is the intelligent Video Surveillance Technology currently advancing,
Intelligent video monitoring changes the passive reception impression pattern of traditional video surveillance, can on one's own initiative the video of monitoring site be entered
Row analysis.This is the development most revolutionary and the most of practical meaning to modern security protection industry, however, existing digital video system
System redundancy is poor, is difficult to meet the requirement of the continuous permanently effective data storage of intelligent video system.
Content of the invention
The present invention overcomes the shortcomings of that prior art exists, and provides a kind of being capable of permanently effective to preserve the regarding of video image data
Frequency monitoring system.
The present invention adopts the following technical scheme that realization：A kind of video monitoring system, by video monitoring central server
Constitute with multiple Video Monitoring Terminals being arranged on video surveillance point, each Video Monitoring Terminal passes through optical fiber communication network and video
Monitoring central server is connected and is communicated；
Video monitoring central server includes keeper's computer, DMR character matrix, large screen display, media server, broadcasting
Server and optical fiber router, keeper's computer, DMR character matrix, media server, Play Server and optical fiber router lead to
Cross optical fiber private network be connected communicated, large screen display is electrically connected with DMR character matrix and is communicated；
Video Monitoring Terminal includes main control module, fiber optical transceiver, memory module, burglar alarm module, clock module, reset control
Molding block, high-definition camera and power module；Described main control module respectively with above-mentioned fiber optical transceiver, memory module, anti-theft journal
Alert module, clock module, reset control module, high-definition camera are connected with power module and are communicated, described high-definition camera
Electrically connect with power module；
The circuit structure of power module is：The output end of the first dc source is connected with the input of a DC/DC modular converter,
The output end of the second dc source is connected with the input of the 2nd DC/DC modular converter；A described DC/DC modular converter is just
Pole output end is connected with the emitter stage of PNP triode Q1, and the one of the colelctor electrode of described PNP triode Q1 and the first sampling resistor R1
End is connected, and the cathode output end of described 2nd DC/DC modular converter is connected with one end of the second sampling resistor R2, a DC/DC
The cathode output end of modular converter is simultaneously grounded after connecing the cathode output end of the 2nd DC/DC modular converter；Described first sampling resistor
The other end of R1 is connected with one end of the 3rd sampling resistor R3 after being connected with the other end of the second sampling resistor R2, and the described 3rd adopts
It is grounded after the power end of other end concatenation high-definition camera of sample resistance R3；The base stage concatenation D/A conversion of described PNP triode Q1
It is connected with main control module after module, described main control module is connected with A/D modular converter, described A/D modular converter collection first,
2nd, the Current Voltage value on three sampling resistor R1, R2, R3 sending to main control module；Above-mentioned first and second sampling resistor R1, R2
Electric current on two power branch of collection, the 3rd sampling resistor R3 gathers the total output current after the parallel connection of two articles of power branch and total
Output voltage.
The present invention compared with prior art has an advantageous effect in that：
First, the present invention adopts hierarchical network architecture, relies on high-definition digital camera shooting terminal, optical fiber communication technology and multiaddress storage system
System, is capable of the high definition of video image data, real-time, permanently effective preservation, meets the needs of intelligent video system, entirely
System architecture is succinct, and networking is convenient, and cost is relatively low, practical；
2nd, in the present invention, Video Monitoring Terminal adopts high-definition camera it is ensured that shooting the resolution ratio of video, adopts anti-theft journal simultaneously
Alert module and optical fiber communication technology are it is ensured that the authenticity of video and real-time Transmission, and rely on dual power supply system it is ensured that being
System power supply, improves system power supply redundancy it is ensured that shooting the continuity of video；
3rd, in the present invention power module of Video Monitoring Terminal by parallel connection can flexibly be controlled to the regulation of transistor base voltage
The output current of power supply, makes two-way power supply export rated current it is ensured that the total current of supply load is stable；Using triode control
Load regulation is good, and power supply stability is strong, efficiency high, and current ratio controls flexibly and easily, and whole device structure is simple, it is steady to run
Fixed, low cost.
Brief description
Fig. 1 is the electrical block diagram of the present invention；
Fig. 2 is the electrical block diagram of video monitoring central server in the present invention；
Fig. 3 is the electrical block diagram of Video Monitoring Terminal in the present invention；
Fig. 4 is the electrical block diagram of power module in the present invention.
In figure：1 is video monitoring central server, 2 is Video Monitoring Terminal, 3 is keeper's computer, 4 is DMR numeral square
Battle array, 5 be large screen display, 6 be media server, 7 be Play Server, 8 be optical fiber router, 9 be optical fiber private network, 10 be
Switch, 11 be two grades of Surveillance center's computers, 12 be main control module, 13 be fiber optical transceiver, 14 be memory module, 15 be anti-
Steal alarm module, 16 be clock module, 17 be reset control module, 18 be high-definition camera, 19 be power module, 20 be first
Dc source, 21 be a DC/DC modular converter, 22 be the second dc source, 23 be the 2nd DC/DC modular converter, 24 be D/A
Modular converter, 25 be A/D modular converter, 26 be voltage follower, 27 be over-voltage and over-current and short circuit protection module.
Specific embodiment
A kind of video monitoring system, by video monitoring central server 1 and multiple video prison being arranged on video surveillance point
Control terminal 2 is constituted, and each Video Monitoring Terminal 2 is connected with video monitoring central server 1 by optical fiber communication network and is communicated；
Video monitoring central server 1 includes keeper's computer 3, DMR character matrix 4, large screen display 5, media server
6th, Play Server 7 and optical fiber router 8, keeper's computer 3, DMR character matrix 4, media server 6, Play Server 7 and
Optical fiber router 8 is connected by optical fiber private network 9 and is communicated, and large screen display 5 is electrically connected with DMR character matrix 4 and carries out
Communication；
Described video monitoring central server 1 also includes switch 10, and described switch 10 is connected in optical fiber private network 9, depending on
Frequency monitoring central server 1 is connected with two grades of Surveillance center's computers 11 by switch 10 and is communicated.
Video Monitoring Terminal 2 include main control module 12, fiber optical transceiver 13, memory module 14, burglar alarm module 15, when
Clock module 16, reset control module 17, high-definition camera 18 and power module 19；Described main control module 12 respectively with above-mentioned optical fiber
Transceiver 13, memory module 14, burglar alarm module 15, clock module 16, reset control module 17, high-definition camera 18 and electricity
Source module 19 is connected and is communicated, and described high-definition camera 18 is electrically connected with power module 19；
The circuit structure of power module 19 is：The output end of the first dc source 20 and the input of a DC/DC modular converter 21
End is connected, and the output end of the second dc source 22 is connected with the input of the 2nd DC/DC modular converter 23；A described DC/DC
The cathode output end of modular converter 21 is connected with the emitter stage of PNP triode Q1, the colelctor electrode of described PNP triode Q1 and first
One end of sampling resistor R1 is connected, the cathode output end of described 2nd DC/DC modular converter 23 and the one of the second sampling resistor R2
End is connected, and the cathode output end of a DC/DC modular converter 21 simultaneously connects the cathode output end of the 2nd DC/DC modular converter 23 and is followed by
Ground；The other end of described first sampling resistor R1 be connected with the other end of the second sampling resistor R2 after with the 3rd sampling resistor R3's
One end is connected, and is grounded after the power end of other end concatenation high-definition camera 18 of described 3rd sampling resistor R3；Described PNP tri- pole
It is connected with main control module 12 after the base stage concatenation D/A modular converter 24 of pipe Q1, described main control module 12 is connected with A/D modular converter
25, described A/D modular converter 25 gathers the Current Voltage value on first, second and third sampling resistor R1, R2, R3 and sends to master control
Module 12；Above-mentioned first and second sampling resistor R1, R2 gathers the electric current on two power branch, the 3rd sampling resistor R3 collection two
Total output current after the parallel connection of bar power branch and total output voltage.
Also it is serially connected with the first diode D1 between the colelctor electrode of described PNP triode Q1 and the first sampling resistor R1, described
Also it is serially connected with the second diode D2 between the cathode output end of the 2nd DC/DC modular converter 23 and the second sampling resistor R2；Described
Also it is serially connected with transistor base current-limiting resistance R4 between the signal output part of the base stage of PNP triode Q1 and D/A modular converter 24,
Also it is serially connected with voltage follower 26 between described transistor base current-limiting resistance R4 and the signal output part of D/A modular converter 24,
Also it is serially connected with over-voltage and over-current and short circuit protection module 27 between described 3rd sampling resistor R3 and high-definition camera 18.
In an above-mentioned DC/DC modular converter 21 and the 2nd DC/DC modular converter 23 adopt TPS5430 chip be non-every
Release DC/DC conversion chip, its input voltage range is 5.5V to 36V, two DC power supplies can be boosted or
Step-down conversion, minimum output voltage is 1.2V, normal output 3A electric current, and current peak is 4A, and modular converter is under normal circumstances
The direct current of input 24V, the direct current of output 8V, 16W, this chip conversion voltage efficiency is high, is available for input supply voltage scope
Width, output current is big, can meet the demand of high-definition camera 18.
Above-mentioned first, second and third sampling resistor R1, R2, R3 passes through one before transmitting a signal to A/D modular converter 25
AD629 amplifier, carries out 20 times of decay to the voltage of collection signal, prevents from damaging main control module 12；During present invention work, pass through
The Current Voltage collecting analog quantity is converted to numeral by A/D modular converter 25 by first, second and third sampling resistor R1, R2, R3
Amount sends into main control module 12, and main control module 12 is analyzed calculating according to the rated current magnitude of voltage of connect high-definition camera 18,
And correspondingly control the base stage of PNP triode Q1 according to the electric current calculating, controlled by the colelctor electrode of PNP triode Q1
Current value on wherein one power branch, and then control the current value on another power branch, make total current output value
Stable, meet required rated current magnitude of voltage during high-definition camera 18 work.
In the present invention, an above-mentioned DC/DC modular converter 21 and the 2nd DC/DC modular converter 23 using chip model are
The DC/DC modular converter of TPS5430, main control module 12 adopts the single-chip microcomputer that chip model is 80C51F320, A/D modular converter
The 25 A/D modular converters adopting model AD7795, model MAX512 of D/A modular converter 24, PNP triode Q1 adopts type
PNP type triode number for TIP41C, first and second diode D1, D2 adopt Schottky diode, first, second and third sampling resistor
The sampling resistor that R1, R2, R3 are 0.1 Ω 20W using specification.
Claims (5)
1. a kind of video monitoring system, by video monitoring central server（1）With multiple video prisons being arranged on video surveillance point
Control terminal（2）Constitute, each Video Monitoring Terminal（2）By optical fiber communication network and video monitoring central server（1）Mutually repeatedly kick into
Row communication；It is characterized in that,
Video monitoring central server（1）Including keeper's computer（3）, DMR character matrix（4）, large screen display（5）, matchmaker
Body server（6）, Play Server（7）With optical fiber router（8）, keeper's computer（3）, DMR character matrix（4）, media clothes
Business device（6）, Play Server（7）With optical fiber router（8）By optical fiber private network（9）It is connected and communicated, large screen display
（5）With DMR character matrix（4）It is electrically connected and communicated；
Video Monitoring Terminal（2）Including main control module（12）, fiber optical transceiver（13）, memory module（14）, burglar alarm module
（15）, clock module（16）, reset control module（17）, high-definition camera（18）And power module（19）；Described main control module
（12）Respectively with above-mentioned fiber optical transceiver（13）, memory module（14）, burglar alarm module（15）, clock module（16）, reset
Control module（17）, high-definition camera（18）And power module（19）It is connected and communicated, described high-definition camera（18）With electricity
Source module（19）Electrical connection；
Power module（19）Circuit structure be：First dc source（20）Output end and a DC/DC modular converter（21）
Input be connected, the second dc source（22）Output end and the 2nd DC/DC modular converter（23）Input be connected；Described
First DC/DC modular converter（21）Cathode output end and PNP triode（Q1）Emitter stage be connected, described PNP triode
（Q1）Colelctor electrode and the first sampling resistor（R1）One end be connected, described 2nd DC/DC modular converter（23）Positive pole output
End and the second sampling resistor（R2）One end be connected, a DC/DC modular converter（21）Cathode output end and meet the 2nd DC/DC
Modular converter（23）Cathode output end after be grounded；Described first sampling resistor（R1）The other end and the second sampling resistor（R2）
The other end connect after with the 3rd sampling resistor（R3）One end be connected, described 3rd sampling resistor（R3）Other end concatenation high
Clear camera（18）Power end after be grounded；Described PNP triode（Q1）Base stage concatenation D/A modular converter（24）Afterwards with master control
Module（12）It is connected, described main control module（12）It is connected with A/D modular converter（25）, described A/D modular converter（25）Collection the
First, two, three sampling resistor（R1、R2、R3）On Current Voltage value and send to main control module（12）；Above-mentioned first and second sampling
Resistance（R1、R2）Electric current on two power branch of collection, the 3rd sampling resistor（R3）After two power branch parallel connections of collection
Total output current and total output voltage.
2. a kind of video monitoring system according to claim 1 is it is characterised in that video monitoring central server（1）Also
Include switch（10）, described switch（10）It is connected to optical fiber private network（9）In, video monitoring central server（1）Pass through
Switch（10）With two grades of Surveillance center's computers（11）It is connected and communicated.
3. a kind of video monitoring system according to claim 1 and 2 is it is characterised in that described PNP triode（Q1）Collection
Electrode and the first sampling resistor（R1）Between be also serially connected with the first diode（D1）, described 2nd DC/DC modular converter（23）'s
Cathode output end and the second sampling resistor（R2）Between be also serially connected with the second diode（D2）；Described PNP triode（Q1）Base
Pole and D/A modular converter（24）Signal output part between be also serially connected with transistor base current-limiting resistance（R4）, described triode
Base stage current-limiting resistance（R4）With D/A modular converter（24）Signal output part between be also serially connected with voltage follower（26）, described
3rd sampling resistor（R3）With high-definition camera（18）Between be also serially connected with over-voltage and over-current and short circuit protection module（27）.
4. a kind of video monitoring system according to claim 1 and 2 is it is characterised in that first, second and third sampling resistor
（R1、R2、R3）Transmit a signal to A/D modular converter（25）Pass through an AD629 amplifier, the voltage to collection signal before
Carry out 20 times of decay, prevent from damaging main control module（12）.
5. a kind of video monitoring system according to claim 1 and 2 is it is characterised in that a DC/DC modular converter（21）
With the 2nd DC/DC modular converter（23）Using the DC/DC modular converter for TPS5430 for the chip model, main control module（12）Using
Chip model is the single-chip microcomputer of 80C51F320, A/D modular converter（25）Using the A/D modular converter of model AD7795, D/A
Modular converter（24）Model MAX512, PNP triode（Q1）Using the PNP type triode of model TIP41C, first and second
Diode（D1、D2）Using Schottky diode, first, second and third sampling resistor（R1、R2、R3）It is 0.1 Ω 20W using specification
Sampling resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610995736.6A CN106385571A (en) | 2016-11-12 | 2016-11-12 | Video monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610995736.6A CN106385571A (en) | 2016-11-12 | 2016-11-12 | Video monitoring system |
Publications (1)
| Publication Number | Publication Date |
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| CN106385571A true CN106385571A (en) | 2017-02-08 |
Family
ID=57958471
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610995736.6A Pending CN106385571A (en) | 2016-11-12 | 2016-11-12 | Video monitoring system |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109308778A (en) * | 2018-09-11 | 2019-02-05 | 深圳市智美达科技股份有限公司 | Mobile detection alarm method, device, acquisition equipment and storage medium |
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Application publication date: 20170208 |