CN205177050U - Video fire prevention temperature measurement early warning control all -in -one - Google Patents
Video fire prevention temperature measurement early warning control all -in -one Download PDFInfo
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- CN205177050U CN205177050U CN201520908005.4U CN201520908005U CN205177050U CN 205177050 U CN205177050 U CN 205177050U CN 201520908005 U CN201520908005 U CN 201520908005U CN 205177050 U CN205177050 U CN 205177050U
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Abstract
The utility model discloses a video fire prevention temperature measurement early warning control all -in -one, including temperature measurement circuit, temperature measurement circuit when the temperature is higher than the default, sends temperature abnormal signal to control terminal through wired or wirelessly be connected with control terminal, temperature measurement circuit includes temperature sensor for response ambient temperature turns into temperature sample voltage, temperature master module for provide temperature reference voltage, the temperature ratio is coupled in temperature sensor than the module, when temperature sample voltage is higher than temperature reference voltage, sends temperature abnormal signal. Through the measuring to ambient temperature, can, the condition of a fire monitor in advance before taking place, prevent that other people from bringing inflammables by the control region initiation condition of a fire into, just control through unified control terminal, can not cause the visual fatigue of control personnel when the control, only use and monitor the equipment that has temperature abnormal signal to export, and control personnel self need not control at the scene, have guaranteed the biggest utilization of cost of labor.
Description
Technical field
The utility model relates to a kind of watch-dog, and more particularly, it relates to a kind of video fire prevention thermometric early warning monitoring all-in-one.
Background technology
Video fire prevention thermometric early warning monitoring all-in-one is a kind of a kind of condition of a fire watch-dog being applicable to various application occasions, be applicable to indoor spontaneously combustible, fortune coal travelling belt, silo, inflammable thing warehouse, ammunition depot, armory, it is divided into fixed-point type and curtain-type two kinds, fixed-point type: monitor fixed target.As: warehouse shelf.Curtain-type: curtain-type monitoring is carried out to a certain region.Take as being contained in sky, the temperature variation above monitoring smallpox, the target of movement below smallpox, unaffected.
Set up the monitor mode that video monitoring system is current domestic main flow.This is the simple extension of traditional cities monitoring, is gathered by collection video image, by manually completing centralized watch by microwave;
Direct surveillance easily causes naked eyes tired, and the condition of a fire in video is not easily found, and causes and fails to report; The video line of Surveillance center is more, and direct surveillance also cannot supervise one by one, easily causes and fails to report.
And what have the greatest impact to the condition of a fire is three amounts, the carrying capacity that humidity, temperature and unit are flammable, be necessary so judge whether this region cameras opens according to the value of this constant and the situation of change of two constants, but general camera does not carry out the device of temperature detection, and can only transmitting image information, comparatively inconvenience.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide one can induced environment temperature when environment temperature is abnormal, sends temperature anomaly signal to a kind of video of control terminal and to prevent fires thermometric early warning monitoring all-in-one.
For achieving the above object, the utility model provides following technical scheme: a kind of video fire prevention thermometric early warning monitoring all-in-one, comprise temperature sensing circuit, described temperature sensing circuit is connected with control terminal by wired or wireless, when temperature is higher than preset value, send temperature anomaly signal to control terminal; Described temperature sensing circuit comprises temperature sensor, is converted into temperature sampling voltage for induced environment temperature; Temperature reference module, for providing temperature reference voltages; Temperature comparison module, is coupled to temperature sensor, when temperature sampling voltage is higher than temperature reference voltages, sends temperature anomaly signal.
When air themperature is greater than 10 degrees Celsius, just likely breaking out of fire; When air themperature is at 10-15 degree Celsius, can slowly burn; When temperature is greater than 15 degrees Celsius, as easy as rolling off a log breaking out of fire, so by the detection to environment temperature, before the condition of a fire occurs, can monitor in advance, prevent other people from fire goods are brought into monitoring area and cause the condition of a fire, and controlled by unified control terminal, the visual fatigue of monitor staff when monitoring can not be caused, only with monitoring the equipment having temperature anomaly signal to export, and monitor staff self does not need to control at the scene, ensure that the maximum utilization of cost of labor.
The utility model can be set to further: described temperature comparison module is coupled with alarm module, and when temperature comparison module sends temperature anomaly signal, described alarm module alarm is to remind neighbouring user's temperature anomaly.Same, alarm module serves the effect of a prompting, when other people bring fire goods into monitoring area, is very easy to the condition of a fire occurs, so now, just needs temperature anomaly information notification user, improve awareness of the importance of fire prevention to remind the people being in this region.
The utility model can be set to further: described temperature reference module comprises the first resistance, the second resistance and the 3rd resistance that are arranged in series successively; The node that described first resistance and the second resistance couple provides reference voltage.By three resistance be arranged in series, and provide reference voltage, ensure the safety and reliability that can improve use when using.
The utility model can be set to further: described 3rd resistance is adjustable resistance.The size of reference voltage can be regulated by the 3rd resistance, thus different preset values can be set according to the flammable carrying capacity of unit and environment actual conditions.
The utility model can be set to further: described second resistor coupled in parallel is provided with anti-interference module, and described anti-interference module comprises the 4th resistance and the on-off element be arranged in series, and the controlled terminal of described on-off element is coupled to temperature anomaly signal.If there is disturbance and be in again the situation near temperature reference voltages in the sampled voltage of temperature sensor when sampling, so easily cause the actuating equipment perseveration sending abnormal signal, affect service life of equipment, so when temperature comparison module output temperature abnormal signal, draw high the size of reference voltage, its principle is as follows, temperature comparison module exports as high level (temperature anomaly signal), the conducting of gauge tap pipe, be equivalent at the second resistor coupled in parallel the 4th resistance, be equivalent to make the equivalent resistance of the second resistance to reduce, so the voltage that the second electric resistance partial pressure obtains increases, reference voltage is reduced, prevent from causing subsequent conditioning circuit perseveration because sampled voltage floats near reference voltage and damaging.
The utility model can be set to further: also comprise fire prevention module, and described fire prevention module comprises atomizing piece and blower fan, and described fan outlet direction is arranged in the face of atomizing piece direction, and described fire prevention module is controlled by the work of temperature anomaly signal and sprays water smoke.By such setting, can before the condition of a fire occur, ejection water smoke, to reduce environment temperature, reduces the probability that fire occurs.
By adopting technique scheme, compared to existing technology, serve following effect: the temperature of monitoring node place at any time, has abnormal conditions, can give the alarm early, for the region of detection, if there is high-temperature targets to occur, alerting signal will be provided immediately, and accomplish early to find, early process.Danger is eliminated in bud.By the detection to environment temperature, can before the condition of a fire occurs, monitor in advance, prevent other people from fire goods are brought into monitoring area and cause the condition of a fire, and controlled by unified control terminal, the visual fatigue of monitor staff when monitoring can not be caused, only with monitoring the equipment having temperature anomaly signal to export, and monitor staff self does not need to control at the scene, ensure that the maximum utilization of cost of labor.
Accompanying drawing explanation
Fig. 1 is the schematic appearance of the utility model supervising device;
Fig. 2 is the utility model temperature sensing circuit schematic diagram;
Fig. 3 is the utility model alarm module circuit theory diagrams;
Fig. 4 is the utility model humidification driving circuit principle figure;
Fig. 5 is the utility model atomizing piece driving circuit principle figure;
Fig. 6 is the utility model fan drive circuit schematic diagram.
Reference numeral: 1a, erecting frame; 11a, camera lens; 12a, fog hole; 101, temperature sensor; 102, temperature reference module; 103, temperature comparison module; 104, anti-interference module; 105, alarm module; 200, humidification driving circuit; 210, multi resonant oscillating circuit; 220, no-load voltage ratio circuit; 300, atomizing piece driving circuit; 400, fan drive circuit; 500, heating wire driving circuit.
Embodiment
Referring to figs. 1 through Fig. 6, embodiment of the present utility model is described further.
With reference to shown in Fig. 1, a kind of overlength distance inflammable and explosive fire alarm positioning monitoring all-in-one, comprises erecting frame 1a, camera lens 11a and the spray holes 12a for spraying; Also comprise temperature sensing circuit, described temperature sensing circuit is connected with control terminal by wired or wireless, when temperature is lower than preset value, sends temperature anomaly signal S1 to control terminal; In one embodiment, carry out communication by wireless telecommunications and terminal, communication mode is not limited to EnOcean, Zigbee, Z-Wave, Bluetooth.Its coded system is not done and is limited to, and is only " 0 " and " 1 " two logics represented abnormal respectively and send normal through wireless module.
Described temperature sensing circuit comprises temperature sensor 101, is converted into temperature sampling voltage for induced environment temperature; Temperature sensor 101 is set to the temperature sensor 101 that any feedback signal is voltage signal, can select the model of different accuracy and sensing range according to demand.Temperature reference module 102, for providing temperature reference voltages; Described temperature reference module 102 comprises the first resistance R1, the second resistance R2 and the 3rd resistance R3 that are arranged in series successively; The node that described first resistance R1 and the second resistance R2 couples provides reference voltage.Described 3rd resistance R3 is adjustable resistance.Described second resistance R2 has been arranged in parallel anti-interference module 104, and described anti-interference module 104 comprises the 4th resistance R4 and on-off element Q1 that are arranged in series, and the controlled terminal of described on-off element Q1 is coupled to temperature anomaly signal S1.Under the basis of the present embodiment, preferred following functions 1 can be set to, real-time monitor the scene temperature of-50 DEG C ~ 300 DEG C of scopes; 2, the multiple array block of remote measurement, is equivalent to dozens of single-point detector and works simultaneously; 3, temperature, the time changing curve of any block can be provided; 4, should for any block temperature or temperature rate of change timely noon; 5, can high temperature alarm, be applicable to oil fuel storehouse, electric control cabinet, ammunition depot, dust workshop etc.; 6, can low-temperature warning, be applicable to indoor unrestrained water detection, food storage, freezer, silo etc.
Temperature comparison module 103, is coupled to temperature sensor 101, when temperature sampling voltage is lower than temperature reference voltages, sends temperature anomaly signal S1.It includes comparer, its model elects LM355 as, its negative input end couples temperature reference module 102, and positive input terminal couples temperature tactility apparatus, and its output terminal is coupled with the 5th resistance R5 and the 6th resistance R6 that are arranged in series, its resistance is all set to 10K Europe, the node that 5th resistance R5 and the 6th resistance R6 couples is coupled with NPN pipe, when exporting as high level, and the conducting of described NPN pipe, send temperature anomaly signal S1 to wireless module, and control the first relay coil KM1 obtains electric simultaneously.
As shown in Figure 2, alarm module 105, when temperature comparison module 103 sends temperature anomaly signal S1, the alarm of described alarm module 105 is to remind neighbouring user's temperature anomaly.When the first relay coil KM1 obtains electric, its contact is made hummer and stand by lamp work by adhesive, notes the condition of a fire to remind those present person.
Also comprise GPS module, described GPS module is controlled by temperature anomaly signal S1 and works, and sends positional information to control terminal.
Humidification driving circuit 200 comprises the first relay normally open contact km1, and one is terminated at power level; Multi-resonant oscillating circuit 210, comprises one 555 timers, and the output terminal of described 555 timers is connected to atomizing piece driving circuit 300, for providing drive singal for atomizing piece; First pin ground connection of described 555 timers, second pin and the 6th pin couple, and and between the first relay normally open contact, be connected with the 8th adjustable resistance R8 and the 7th resistance R7,7th pin is connected to the node that the 8th adjustable resistance R8 and the 7th resistance R7 is connected to form, described second pin and ground are also connected with the first electric capacity C1 between holding, and the 5th pin and ground are connected with the second electric capacity C2 between holding.Can control by controlling the 8th adjustable resistance R8 the dutycycle that it exports PWM ripple, its dutycycle exported can be controlled by the capacity arranging the second electric capacity C2.7th resistance R7 resistance is preferably 10 kilo-ohms, and the 8th adjustable resistance R8 resistance is preferably 1M ohm, and the first electric capacity C1 capacity is preferably 100uF, and the second electric capacity C2 capacity elects 0.01uF as, and its maximum output frequency is about 100000HZ.Signal source required for controlling atomizing piece function has: 1, need 24V to power; 2, need the high-frequency PWM signal that adjustable, its output frequency minimum requirements is 1.7MHZ.
No-load voltage ratio circuit 220, is connected between the output terminal of 555 timers and blower fan FAN1 driving circuit 4, the electric signal that 555 timers export is converted to the driving electric signal that blower fan FAN1 is suitable for.Comprise an optical coupling isolator, its input end is connected to the 3rd pin Uout1 of 555 timers, its output terminal is high level output, output terminal is also coupled with one the 3rd electric capacity C3 and the 9th resistance R9 in parallel with it between holding with ground, described 3rd electric capacity C3 and the 9th resistance R9 forms a small-sized RC concussion loop, its output terminal is connected to the positive pole of the 3rd comparer, can change by the parameter arranging the 3rd electric capacity C3 and the 9th resistance R9 the dutycycle that it exports PWM ripple, be become and the electric signal of blower fan FAN1 can be driven to use.Described optical coupling isolator selects 6N137, and the 3rd electric capacity C3 capacity elects 10uF as, and the 9th adjustable resistance maximum value elects 100 ohm as, and LM355 comparer selected by the 3rd comparer.The multi resonant oscillating circuit be formed by connecting by 555 timers is as the driving circuit of blower fan and atomizing piece, and structure is simple, has greatly saved circuit cost and design space.With reference to shown in Fig. 6 and Fig. 1, U0 is the output pwm signal of the 3rd pin Uout1 of 555 timers, and Uout is the control principle of no-load voltage ratio circuit 220 to its dutycycle, does not repeat at this.Atomizing piece driving circuit 300, it comprises an input pin, as shown in Figure 3 be common driving circuit, the 3rd pin Uout1 of 555 timers is used for providing to atomizing piece driving PWM ripple, control atomizing piece shakes, and no-load voltage ratio circuit 220 keeps output signal to control blower fan work.
Blower fan FAN1 driving circuit 4, as shown in Figure 6, the output terminal Uout2 control blower fan FAN1 of the 3rd comparer is enable, can control blower fan FAN1 wind speed by regulating the 9th resistance R9.Described atomizing piece driving circuit 300 and blower fan FAN1 driving circuit 4, its gauge tap pipe (M1 and M2) all elects metal-oxide-semiconductor as, and its driving circuit switching tube being more suitable for doing blower fan FAN1 and atomizing piece relative to triode uses.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a video fire prevention thermometric early warning monitoring all-in-one, it is characterized in that: comprise temperature sensing circuit, described temperature sensing circuit is connected with control terminal by wired or wireless, when temperature is higher than preset value, sends temperature anomaly signal to control terminal;
Described temperature sensing circuit comprises
Temperature sensor, is converted into temperature sampling voltage for induced environment temperature;
Temperature reference module, for providing temperature reference voltages;
Temperature comparison module, is coupled to temperature sensor, when temperature sampling voltage is higher than temperature reference voltages, sends temperature anomaly signal.
2. a kind of video fire prevention thermometric early warning monitoring all-in-one as claimed in claim 1, it is characterized in that: described temperature comparison module is coupled with alarm module, when temperature comparison module sends temperature anomaly signal, described alarm module alarm is to remind neighbouring user's temperature anomaly.
3. a kind of video fire prevention thermometric early warning monitoring all-in-one as claimed in claim 1, is characterized in that: described temperature reference module comprises the first resistance, the second resistance and the 3rd resistance that are arranged in series successively; The node that described first resistance and the second resistance couple provides reference voltage.
4. a kind of video fire prevention thermometric early warning monitoring all-in-one as claimed in claim 3, is characterized in that: described 3rd resistance is adjustable resistance.
5. a kind of video fire prevention thermometric early warning monitoring all-in-one as claimed in claim 4, it is characterized in that: described second resistor coupled in parallel is provided with anti-interference module, described anti-interference module comprises the 4th resistance and the on-off element be arranged in series, and the controlled terminal of described on-off element is coupled to temperature anomaly signal.
6. a kind of video fire prevention thermometric early warning monitoring all-in-one as described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that: also comprise fire prevention module, described fire prevention module comprises atomizing piece and blower fan, described fan outlet direction is arranged in the face of atomizing piece direction, and described fire prevention module is controlled by the work of temperature anomaly signal and sprays water smoke.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520908005.4U CN205177050U (en) | 2015-11-13 | 2015-11-13 | Video fire prevention temperature measurement early warning control all -in -one |
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| CN201520908005.4U CN205177050U (en) | 2015-11-13 | 2015-11-13 | Video fire prevention temperature measurement early warning control all -in -one |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107705490A (en) * | 2017-09-26 | 2018-02-16 | 深圳市亿联智能有限公司 | A kind of fire early-warning system based on charged pool intelligent video camera head suit |
| CN113034837A (en) * | 2021-03-03 | 2021-06-25 | 威特龙消防安全集团股份公司 | False alarm prevention smoke sensing detection alarm and alarm control method |
-
2015
- 2015-11-13 CN CN201520908005.4U patent/CN205177050U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107705490A (en) * | 2017-09-26 | 2018-02-16 | 深圳市亿联智能有限公司 | A kind of fire early-warning system based on charged pool intelligent video camera head suit |
| CN113034837A (en) * | 2021-03-03 | 2021-06-25 | 威特龙消防安全集团股份公司 | False alarm prevention smoke sensing detection alarm and alarm control method |
| CN113034837B (en) * | 2021-03-03 | 2023-04-28 | 威特龙消防安全集团股份公司 | False alarm-prevention smoke sensing detection alarm and alarm control method |
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