CN104581053A - Passive video monitoring system for fight protection - Google Patents
Passive video monitoring system for fight protection Download PDFInfo
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- CN104581053A CN104581053A CN201410800505.6A CN201410800505A CN104581053A CN 104581053 A CN104581053 A CN 104581053A CN 201410800505 A CN201410800505 A CN 201410800505A CN 104581053 A CN104581053 A CN 104581053A
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Abstract
The invention discloses a passive video monitoring system for fight protection. The system can be either used for common monitoring at ordinary times or used for automatically starting monitoring in case of fire. The system is characterized by being divided into a local side module and a terminal module, wherein the terminal module takes electricity from the local side module, so that the phenomenon that the terminal module cannot work due to local power failure in case of fire is avoided; the terminal module can be in a dormancy state in case of no risk, and at that moment, almost no current is consumed; in case of fire, a temperature control switch is turned on, and an electric bell gives an alarm; the monitoring module automatically starts to work and returns a monitoring video to the local side. The passive video monitoring system has the benefits that in case of fire, a local power supply is usually switched off, so that the monitoring module which works on the basis of feed of a remote local side can work continuously. When the system is in the dormancy state, a camera is off, and the terminal hardly consumes the current; only in a danger, the camera is connected; therefore, the passive video monitoring system is safe, energy-saving and power-saving.
Description
Technical field
The invention belongs to the video monitoring system of a kind of remote feeding electricity and control, still spendable, the passive video monitoring system that is applicable to fire-fighting when especially a kind of fire occurs.
Background technology
Along with economic development and urbanization step are accelerated, the office tower in city, residential building, large supermarket and the building such as underground commercial center, parking lot are increasing, and disaster hidden-trouble also increases greatly.But the fire-fighting system in city does not but catch up with this speed of development in time.Event of fire generally occurs suddenly, and situation is fast changing, and Security Personnel and fire fighter need to understand fire condition in time, accurately, all sidedly, to reach, fire damage is reduced to minimum effect.The firefighting monitoring system of present stage is independently mostly, and each unit is a set of fire alarm system of selection and installation separately, arranges Security Officer to coordinate.Will give the alarm when supervisory system finds fire, Security Officer verifies after receiving alarm immediately, confirms concrete on fire notice fire units, is puted out a fire to save life and property by fire units.Staff in this cover system plays very important role, but causes fire information to be failed to report, reports late due to human factor, and the panalarm situation not recovering in time to open that breaks down happens occasionally, and causes fire spreading, leads to the loss that cannot estimate.In addition, the watch-dog used in the market is mostly by local power taking, also in running order when not having breaking out of fire dangerous situation, extremely wastes.When building breaking out of fire, in order to safety, local power supply can be closed by people usually, and such camera also cannot work on.Whether this judges fire location and fire condition and has trapped personnel to cause very big inconvenience to fire fighter and Security Personnel.
For the drawback that existing firefighting monitoring system exists, we have proposed a set of more practical passive video monitoring system.In order to solve the problem that the slow and this locality of the current wasting of resources, time of fire alarming cannot power.Native system adopts far-end constant-voltage feeding.After local power supply cuts off, watch-dog still can continue to use, for fire-fighting and Security Personnel provide effective information as phone.
Summary of the invention
Technical matters to be solved by this invention is for above-mentioned deficiency of the prior art, provides a kind of passive video monitoring system for fire-fighting, its circuit design is reasonable, wiring is simple, it is convenient to install, intelligence degree is higher.Effective information can be provided in time for fire fighter when fire occurs.
The technical solution used in the present invention is: a kind of passive video monitoring system for fire-fighting, is characterized in that: system is divided into " local side module " and " terminal module ", by both twisted pair line connections, is used for transmission feed, control information and video content.
Described " local side module " comprises " local side supply module ", " local side information sending module ", " feed judge module " and " video reception module ".For issuing control instruction, the video monitoring content that provides feed and receiving terminal to transmit.Wherein, described " local side supply module " is connected with " local side information sending module ", and described " feed judge module " is connected with twisted-pair feeder with " local side information sending module ", and described " video reception module " is connected with another described group twisted-pair feeder.
Described " terminal module " comprises " end message receiver module ", " monitoring access module ", " voltage stabilizing supply module " and " monitoring camera head module ".Be used for office of acceptance's client information, automatically or the monitoring camera that is dynamically connected, to power to camera voltage stabilizing and to control camera The Cloud Terrace action etc. according to local side information.Described " end message receiver module " passes through " monitoring access module " and is connected with " voltage stabilizing supply module ", described " monitoring camera head module " is connected with " voltage stabilizing supply module ".
Described " local side module " can be located at the ground such as reception room, community, building Control Room, directly check when fire occurs fire the condition of a disaster and around whether have the situations such as people.
Described " terminal module " is in dormant state under normal conditions, " voltage stabilizing supply module " and " monitoring camera head module " not connecting system.Terminal system need consume a little electric current maintenance " end message receiver module " and work.
Described " local side information sending module ", when occurring without fire, is still waken " terminal module " up by modes such as reversion feed polarity, is made terminal in running order.
Described " monitoring access module " can when breaking out of fire dangerous situation, and affect by temperature or smog, Closing Switch, by " voltage stabilizing supply module " and " monitoring camera head module " connecting system, terminal becomes duty automatically.Meanwhile, alarm work, reminds people around to evacuate.
When described " terminal module " is in running order, " voltage stabilizing supply module " and " monitoring camera head module " connecting system in parallel, terminal resistance diminishes, and feed current becomes large, and consumed power increases.After starting working, camera passes monitor video content back local side.
Preferably, " local side information sending module " more predeterminable signals are in order to wake up and to regulate and control the action of watch-dog The Cloud Terrace, these signals can be polarity or amplitude with the different DC voltage of normality or direct current voltage pulse coding, or frequency or phase place or the amplitude alternating voltage different from normality or alternating voltage pulses are encoded.
The invention has the advantages that:
1. be conducive to the promptness and the accuracy that improve fire alarm, shorten time of fire alarming, improve warning efficiency.
2., when local power supply cuts off, still can continue to use, for fire fighter provides effective information.
3. native system is being in dormant state at ordinary times, and when there is dangerous situation, automatic alarm connects, and has really accomplished energy saving.
4. native system is reasonable in design, wiring simple, it is convenient to install, intelligence degree is higher and input cost is low, easy to operate.
5. result of use is good, and the first moment alarm that can occur at fire sounds, and notifies that people around evacuates.Control Room also can be dialed 119 warnings in time, check fire location, fire dangerous situation, around with or without the masses etc.
Accompanying drawing explanation
Fig. 1 is the system chart in the point-to-point embodiment of the present invention.
Fig. 2,3 is four line connection diagrams in the point-to-point embodiment of the present invention.
Fig. 4 is " local side supply module A1 " schematic diagram in the point-to-point embodiment of the present invention.
Fig. 5 is " control signal generator A2 " schematic diagram in the point-to-point embodiment of the present invention.
Fig. 6 is " terminal signaling receiver module B1 " schematic diagram in the point-to-point embodiment of the present invention.
Fig. 7 is " monitoring access module K " schematic diagram in the point-to-point embodiment of the present invention.
Embodiment
The present embodiment a kind ofly to be encoded as control signal using the direct current voltage pulse different from during normality, with twisted pair line connection local side and terminal, and the passive video monitoring system of transmission feed, control signal and video information.
The core methed of the present embodiment is: local side is provided with intelligent power supply module, and terminal is provided with voltage stabilizing supply module, utilizes feeder line the two to be connected.
Described local side intelligent power supply module can identification terminal duty, and wakes terminal monitoring module as required up, and send control signaling adjustment terminal monitoring The Cloud Terrace.
Described terminal voltage stabilizing supply module provides electric current of voltage regulation to monitoring camera, is in powered down sleep state under normal conditions, now consumes feed current hardly, or only consume some leakage currents.This module can according to the passive connecting system of local side signaling or when fire occurs automatic connecting system, the camera started as being attached thereto provides the operating voltage needed for normal work, now consume feeder current increase.
In the present embodiment, system comprises " local side modules A " and " terminal module B ".
As shown in Figure 1, " local side module " comprises " local side supply module A1 ", " local side information sending module A2 ", " feed judge module A3 " and " video reception modules A 4 " to system chart." terminal module " then comprises " end message receiver module B1 ", " monitoring access module K ", " voltage stabilizing supply module B2 " and " monitoring camera head module ".
Local side and terminal can by twisted pair line connections, and connected mode is not limited to, and can be direct connection, being of coupled connections also by certain middle device.In the present embodiment, local side and terminal adopt two groups of twisted-pair feeders to be of coupled connections to (as shown in Figure 2) in feeder line by transformer access.
Described " local side supply module A1 " obtains electric energy from local side this locality, flows to other modules and use after transformer conversion.A1 can export multiple power sources voltage, and can provide embodiments such as exchanging input AC output, the output of interchange input direct-current, the output of direct current input AC and the output of direct current input direct-current.Such scheme market all there is matured product can use.
" control signal generator A2 " is for sending signaling.When local side needs to wake the terminal being in dormant state up, be then added on " control signal generator A2 " by a wake-up signal, A2 is by feed voltage reversal of poles.A2 module can be made up of one group of double-point double-throw switch, and wake-up signal signal can gauge tap, and physical circuit as shown in Figure 5.The meaning of system also predeterminable good polarity coding, corresponding different controlling functions.
" feed judge module A3 " is for judging terminal operating status.The current sinking hardly when terminal is in dormant state, therefore feeder line only has very little feed current; After terminal is started working, power consumption increases, and feed current increases.A3 can be a simple reometer, is used for detecting feeder current, thus judges that terminal is in work or dormant state.
" video reception modules A 4 " is for receiving, processing and playback terminal video.After the work of terminal monitoring camera, the video content photographed is returned local side by another Double-strand transmission, and video content reduces by A4, shows at display screen.A4 and display screen by power supplied locally, also can be powered by A1.
Whether " end message receiver module B1 " controls to be connected with rear " terminal supply module B2 " and monitoring camera according to voltage reversal signal.B1 can simply be realized by relay, implementation and A2 similar, also can be realized by diode, circuit diagram as shown in Figure 6, when input normality signal time, due to the reverse cut-off of diode D1 and D2, circuit is obstructed; When feed voltage reversal of poles, diode D1, D2 conducting, electric current, through R1, R2 dividing potential drop, exports from D3, arrives B2 module.
" terminal supply module B2 " is a kind of voltage stabilizing supply module, comprises filtering circuit, integrated stable voltage circuit and output filter circuit three part.With suitable voltage supplying monitoring camera work after the feed filtering voltage regulation that B1 can transmit by it.Voltage stabilizing supply module can be the commercially available ripe power module of voltage regulation of any one.When terminal is in running order, B2 will consume comparatively multiple current.
" monitoring access module K ", for controlling the access of rear B2, circuit as shown in Figure 7.When not having fire dangerous situation, local side can Closing Switch K2 as required; When a fire, K1 closes automatically.K1 can control by smog or temperature, and K1 connects alarm, reports to the police immediately when closed, notifies that people around evacuates.
It may be noted that description in this instructions is only for illustration of the object of property, and should not be construed limitation of the present invention, protection scope of the present invention only depends on the protection domain of claims.
Claims (1)
1. for the passive video monitoring system of fire-fighting, system comprises " local side module " and " terminal module ", by both twisted pair line connections, be used for transmitting feed, control information and video content, wherein, " local side module " comprises " local side supply module ", " local side information sending module " and " video reception module ", for issuing control instruction, the video monitoring content that feed and receiving terminal transmit is provided, " terminal module " comprises " monitoring access module ", " voltage stabilizing supply module " and " monitoring camera head module ", be used for office of acceptance's client information, automatically or by the monitoring camera that is dynamically connected, power to camera voltage stabilizing and control camera The Cloud Terrace action etc. according to local side information, it is characterized in that:
Described " local side module " also comprises " feed judge module ", when breaking out of fire dangerous situation, terminal " monitoring access module " affects by temperature or smog, Closing Switch, by " voltage stabilizing supply module " and " monitoring camera head module " connecting system, terminal becomes duty automatically, and " the feed judge module " of local side module can judge the duty of terminal according to feeder current
Described " terminal module " also comprises " end message receiver module ", under normality, terminal is in dormant state, " voltage stabilizing supply module " and " monitoring camera head module " not connecting system, when occurring without fire, local side can send information as required to terminal, make terminal in running order, after starting working, camera passes monitor video content back local side
Described waking up to can be polarity or amplitude with the different DC voltage of normality or direct current voltage pulse coding with control signal, or frequency or phase place or the amplitude alternating voltage different from normality or alternating voltage pulses are encoded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410800505.6A CN104581053A (en) | 2014-12-19 | 2014-12-19 | Passive video monitoring system for fight protection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410800505.6A CN104581053A (en) | 2014-12-19 | 2014-12-19 | Passive video monitoring system for fight protection |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101751755A (en) * | 2010-01-05 | 2010-06-23 | 重庆英卡电子有限公司 | Forest fireproofing early warning system |
| CN101980472A (en) * | 2010-10-28 | 2011-02-23 | 南京大学 | Remote constant-voltage feeding method and system with waking function |
| CN101989373A (en) * | 2009-08-04 | 2011-03-23 | 中国科学院地理科学与资源研究所 | Visible light-thermal infrared based multispectral multi-scale forest fire monitoring method |
| CN102309827A (en) * | 2011-09-09 | 2012-01-11 | 东北大学 | Auxiliary rescue device for fire-trapped people in huge building and control method |
| CN103347096A (en) * | 2013-07-24 | 2013-10-09 | 华广视联(北京)科技有限公司 | IP intelligent cluster monitoring system based on EOC |
-
2014
- 2014-12-19 CN CN201410800505.6A patent/CN104581053A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101989373A (en) * | 2009-08-04 | 2011-03-23 | 中国科学院地理科学与资源研究所 | Visible light-thermal infrared based multispectral multi-scale forest fire monitoring method |
| CN101751755A (en) * | 2010-01-05 | 2010-06-23 | 重庆英卡电子有限公司 | Forest fireproofing early warning system |
| CN101980472A (en) * | 2010-10-28 | 2011-02-23 | 南京大学 | Remote constant-voltage feeding method and system with waking function |
| CN102309827A (en) * | 2011-09-09 | 2012-01-11 | 东北大学 | Auxiliary rescue device for fire-trapped people in huge building and control method |
| CN103347096A (en) * | 2013-07-24 | 2013-10-09 | 华广视联(北京)科技有限公司 | IP intelligent cluster monitoring system based on EOC |
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Effective date of registration: 20170630 Address after: 210008, room 1, building 50, 205 Yuan Yuan Lane, Gulou District, Jiangsu, Nanjing Applicant after: Chen Xiangning Address before: Private Economic Development Zone Zhenjiang city Jiangsu province 212021 Runzhou District run Hing Road East Applicant before: ZHENJIANG FENGCHENG CIVIL NETWORKING DEVICE TECHNOLOGY CO., LTD. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |
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| RJ01 | Rejection of invention patent application after publication |