CN101706987A - Smoke-temperature sensing fire integrated warning system - Google Patents
Smoke-temperature sensing fire integrated warning system Download PDFInfo
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- CN101706987A CN101706987A CN200910085271A CN200910085271A CN101706987A CN 101706987 A CN101706987 A CN 101706987A CN 200910085271 A CN200910085271 A CN 200910085271A CN 200910085271 A CN200910085271 A CN 200910085271A CN 101706987 A CN101706987 A CN 101706987A
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Abstract
The invention relates to a smoke-temperature sensing fire integrated warning system, comprising a central processing system, a warning system and a detection system. A smoke-sensing detector and a temperature-sensing detector in the detection system are arranged in groups, and a data collector collects and analyzes the data in the same group, thereby omission report or error report caused by individual detector fault can be avoided. The smoke-sensing detector is provided with a dispersion detection optical path and a transmission detection optical path to detect the dispersion strength and the transmission strength of smoke at the same time, thereby avoiding omission report of black smoke by only detecting the dispersion strength. The invention is applicable to various indoor occasions for detecting a fire through smoke and temperature.
Description
Technical field
The present invention relates to a kind of smoke-temperature sensing fire integrated warning system, mainly can be used for indoor smog and fire alarm.
Background technology
The inside fire warning system adopts smoke detector and/or heat detector to survey smog and temperature signal usually, when reaching, smokescope reports to the police after certain value or temperature reach certain value, these detectors can be independent the uses, be provided with independently data analysis circuit and independently alarm separately, also detectable signal can be delivered to central processing system, carry out unified data processing by central processing system, when reaching alarm criteria, report to the police by warning system.These technology have the defective of two aspects at present, the one, a detector often only is set on each monitoring point, the phenomenon reporting by mistake or fail to report will appear when this detector breaks down or is subjected to external interference, the 2nd, what smoke detector adopted during the photoelectricity that adopts is scattering principle, according to smog scattering of light intensity is generated detectable signal, when occur be black smoke the time, often survey not come out, formation is failed to report.
Summary of the invention
The objective of the invention is to overcome the above-mentioned defective of existing above-mentioned technology, reduce the wrong report and the rate of failing to report of system.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of smoke-temperature sensing fire integrated warning system, comprise central processing system, warning system and detection system, described detection system comprises some heat detectors of surveying on-the-spot smoke detector and some scenes of being distributed in that are distributed in, described smoke detector is used for the smoke signal of collection site, described heat detector is used for the temperature signal of collection site, described central processing system is used to accept described smoke signal and temperature signal, according to default computing and judgment mode smoke signal and temperature signal are carried out data operation and fire judgement, meeting or exceeding the fire alarm standard is to send early warning signal, meeting or exceeding the fire alarm standard is that alerting signal takes place, described warning system comprises some alarms on-the-spot and the monitoring place that are separately positioned on, be used to accept the early warning signal and the alerting signal of central processing system, carry out early warning alarm and alarm.
Also be provided with some data acquisition units that communicate to connect with each self-corresponding smoke detector and/or heat detector respectively, described data acquisition unit is a digital signal corresponding with the sense smoke signal and/or the temperature-sensitive conversion of signals of connected smoke detector and/or heat detector detection, deliver to described central processing system, described data acquisition unit takes the mode of poll to obtain the sense smoke signal and/or the temperature-sensitive signal of corresponding smoke detector and/or heat detector detection.
In the high zone of fire hazard degree or in whole search coverages, described smoke detector is provided with in groups, detector quantity in every group of detector is 2-3, described data acquisition unit obtains behind the sense smoke signal of detector on the same group and/or the temperature-sensitive signal these signals to be analyzed comparison, under the situation to each detector signal notable difference, carrying out validity judges, when the detectable signal of judging certain detector is invalid signals, reject invalid signals and the detector that produces this invalid signals is generated data that have this detector identification sign and cause of invalidity type designation, deliver to described central processing system, when the detectable signal that can't judge which detector is invalid, will be in each detection data or the maximum that send this group detector, two minimum end datas send to central processing system, suspicious signal signature data of additional simultaneously transmission, when the detectable signal no significant difference of detector on the same group, send to described central processing system for the detection data of this group detector with mean value.
Be judged as notable difference in only poor 20% o'clock of surpassing minimum value of the minimax value of the detection data of detector on the same group.
Described smoke detector comprises optical transmitting set, optical receiver and detection chambers, the light that described optical transmitting set sends enters described detection chambers, described optical receiver receives the scattered light from described detection chambers, it is characterized in that also being provided with second optical receiver, periphery in the described detection chambers disperses to be provided with one or more reflecting plates, the light beam that described optical transmitting set sends is received by described second optical receiver behind described one or more baffle reflections, reflexes to light path between described second optical receiver by optical transmitting set through one or many and constitutes second of polyline shaped and detect light path.
The one or more line reflection light path in the described second detection light path and the receiving light path of described optical receiver intersect, the line reflection light path that the emission light path of described optical transmitting set and described one or more intersects with the receiving light path of described optical receiver constitutes forward direction type or backward type scattering light path with the receiving light path of described optical receiver respectively, detects light path by optical transmitting set through scattering to described optical receiver and constituting first by optical transmitting set scatters to described optical receiver again after the one or many reflection light path.
The emission light path of described optical transmitting set and the receiving light path intersecting area of described line reflection light path and described optical receiver all are positioned at described detection chambers, and constitute the described first effective scattering region that detects in the light path.
The shell of this smoke detector comprises base and the top cover that is connected with described base, the sidewall of described shell is made of a plurality of V-arrangement anti-dazzling screens, spacing between the adjacent V-arrangement anti-dazzling screen is less than making outside light can directly inject the spacing in space in the shell, described detection chambers is positioned at the space that described base, top cover and V-arrangement anti-dazzling screen surround, described V-arrangement anti-dazzling screen is fixedlyed connected with described top cover or described base and is integral, and the connected mode of described top cover and described base is for being threaded or screw is fastenedly connected.
The inside surface of described base, the inside surface of described top cover and V-arrangement anti-dazzling screen all adopt the high material of absorptance to make.
The bottom of described reflector is provided with the flanging parallel with described base, and the screw retention by passing flanging is on described base.
The invention has the beneficial effects as follows: the uniform data by central processing system is handled, and can concentrate the detectable signal of several alarm set points, and these signals are carried out unified analysis and comparison, thereby improves the reliability of reporting to the police; By a plurality of detectors being set at same sensing point, form a detector set, data to each detector are analyzed comparison, when notable difference occurring, carry out concrete analysis, rather than blindly report to the police according to the signal of some detectors, overcome a phenomenon that detector is made a fault and caused misrepresenting deliberately or failing to report thus; By the detectable signal that data acquisition unit is collected a plurality of of a certain zone or organized detector more is set, and carry out preliminary computing, reduced the working load of central processing system, help improving arithmetic speed, shorten the time delay of reporting to the police; Detect light path owing in smoke detector, be provided with two of scattering and projections, not only can detect smog to scattering of light information, but also can detect smog, can both detect black smoke and white cigarette thus the optical transmission signal.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of sense cigarette sensor of the present invention.
Embodiment
Referring to Fig. 1, smoke-temperature sensing fire integrated warning system provided by the invention comprises central processing system, warning system and detection system, described detection system comprises some heat detectors of surveying on-the-spot smoke detector and some scenes of being distributed in that are distributed in, described smoke detector is used for the smoke signal of collection site, described heat detector is used for the temperature signal of collection site, described central processing system is used to accept described smoke signal and temperature signal, according to default computing and judgment mode smoke signal and temperature signal are carried out data operation and fire judgement, meeting or exceeding the fire alarm standard is to send early warning signal, meeting or exceeding the fire alarm standard is that alerting signal takes place, described warning system comprises some alarms on-the-spot and the monitoring place that are separately positioned on, be used to accept the early warning signal and the alerting signal of central processing system, carry out early warning alarm and alarm.
This smoke-temperature sensing fire integrated warning system can also be provided with some data acquisition units that communicate to connect with each self-corresponding smoke detector and/or heat detector respectively, described data acquisition unit is a digital signal corresponding with the sense smoke signal and/or the temperature-sensitive conversion of signals of connected smoke detector and/or heat detector detection, deliver to described central processing system, described data acquisition unit takes the mode of poll to obtain the sense smoke signal and/or the temperature-sensitive signal of corresponding smoke detector and/or heat detector detection.
In the high zone of fire hazard degree or in whole search coverages, described smoke detector is provided with in groups, detector quantity in every group of detector is 2-3, described data acquisition unit obtains behind the sense smoke signal of detector on the same group and/or the temperature-sensitive signal these signals to be analyzed comparison, under the situation to each detector signal notable difference, carrying out validity judges, when the detectable signal of judging certain detector is invalid signals, reject invalid signals and the detector that produces this invalid signals is generated data that have this detector identification sign and cause of invalidity type designation, deliver to described central processing system, when the detectable signal that can't judge which detector is invalid, will be in each detection data or the maximum that send this group detector, two minimum end datas send to central processing system, suspicious signal signature data of additional simultaneously transmission, when the detectable signal no significant difference of detector on the same group, send to described central processing system for the detection data of this group detector with mean value.
Referring to Fig. 2, the smoke detector that the present invention adopts comprises optical transmitting set 1, optical receiver 2, second optical receiver 5, V-arrangement cover blade 3, reflecting plate 4 and detection chambers 6, the V-arrangement cover blade is arranged along the complete cycle of described detection chambers, enter detection chambers so that stop surround lighting, the workplace of reflecting plate is made by the total reflection material, remainder adopts the big material of absorptivity to make, and to absorb spurious rays, reduces and disturbs.Described one or more reflecting plate is positioned at the inside in the space that the V-arrangement cover blade surrounded, and the position of each reflecting plate and angle should guarantee to reflex to second optical receiver by the light that optical transmitting set is sent in the one or many reflection.Reflecting plate can be connected on the base by screw, so that loosen screw the angle of reflecting plate is adjusted.
In traditional photo-electric scatter-type smoke detector, the axis of emission light path and the axis angle of receiving light path are scattering angle, and scattering angle is that acute angle then is the back scattering type, then is the forward scattering type when scattering angle is the obtuse angle.When scattering angle during more near 0 ° or 180 °, the light intensity of the scattered light that optical receiver is received is strong more, and response output is high more, and detector is just sensitive more.Usually can contain at least one among the present invention near forward direction type or backward type scattering light path near 0 ° or 180 °.
In the illustrated embodiment, reflecting plate 4 is provided with 4 places altogether, is designated N1, N2, N 3 and N4 respectively.The light beam A N1 that described optical transmitting set sends enters described detection chambers, and this light beam is as two kinds of emission light that detect light path, and these two kinds detection light paths are respectively:
(1) first detects light path: optical transmitting set 1, reflecting plate N1～N4, optical receiver 2 constitutes the hardware components of this scatter-type smoke detection light path, the light that optical transmitting set sends reflects successively through reflecting plate N1～N4, in this process, certain the one or more line reflection light path in each reflected light path and the receiving light path BM of optical receiver intersect, and intersection point may be not limited to a place, the emission light path of optical transmitting set, the part or all of above-mentioned line reflection light path that intersects with described receiving light path BM constitutes forward direction type or backward type scattering light path with described receiving light path BM separately, belong to the scatter-type smoke detection light path among the present invention, it totally constitutes first and detects light path.
(2) second detect light path: optical transmitting set 1, reflecting plate N1～N4, second optical receiver 5 constitute the hardware components of this absorption-type smoke detection light path, emission light path AN1 and each the bar line reflection light path N1N2, N2N3, N3N4, the N4C that after the reflection of reflecting plate N1～N4, form successively, belong to the absorption-type smoke detection light path among the present invention, it totally constitutes broken line shape second and detects light path.
In conjunction with present embodiment, first and second principle of work that detects light path is as follows:
The light path coincidence zone (D1 as shown in the figure and D2) of each forward direction type or backward type scattering light path all is positioned at described detection chambers in the first detection light path, and its summation constitutes effective surveyed area of the first detection light path.Because smoke particle has scattering process to light, optical receiver receives from described detection chambers particularly from the scattered light of effective surveyed area, its intensity variations reflects the variation of the smokescope of effective surveyed area, has particularly reflected the concentration change of the light smog (can be referred to as white cigarette or white smoke) with strong scattering characteristic.And,, therefore the performance of smoke detector is improved owing to the search coverage of the more traditional smoke detector of this effective surveyed area is big.
The direction of adjustable lay the grain transmitter, optical receiver and reflecting plate, make first to detect each forward direction type in the light path or the scattering angle of backward type scattering light path is in the suitable scope as far as possible, make the light intensity of the received scattered light of optical receiver stronger, can also increase effective surveyed area by adjustment and the way that described receiving light path BM constitutes forward direction or backward type scattering light path, further strengthen the light intensity of the received scattered light of optical receiver.
Second detects in the light path, second optical receiver 5 received only through repeatedly reflection and light after the beam split of smoke particle absorbent portion, when smokescope increases, there is more light to be absorbed by smoke particle, therefore the light intensity of received light is more little, light intensity has reflected the concentration of smog, and intensity variations has reflected the variation of the concentration of smog, has particularly reflected the concentration change of the dark smog (can be referred to as black smoke or black smog) with strong absorption characteristic.
The light intensity signal that the optical receiver of this optical detector of fire smoke and second optical receiver are received is sent into corresponding comparator circuit respectively after opto-electronic conversion.If what enter detector is white smoke, because it is good to the reflection of light characteristic, first detects light path will at first respond, when the light intensity of the light that is received big to a certain degree promptly sending warning.If what enter detector is black smog, because its absorption characteristic to light is good, second detects light path will at first respond, the light intensity of the light of its reception can decay to some extent, the light intensity standard as a comparison of the light that second optical receiver 5 receives under the light intensity of the light that sends with optical transmitting set or the non smoke environment, when light intensity attenuation to a certain degree promptly sending warning.When the color of smog is between white and black, can detect light path according to first and second its response characteristic is compared as net result data and standard value with two linear operation values that detect the detected value of light paths, when reaching standard value, send warning.These data contrast exclusive disjunctions can be undertaken by contrast circuit, and corresponding computing parameter or reduced parameter can be set in contrast circuit, and these computings can repeat no more according to prior art or other possible technology.
The surface of the inner wall surface of detection chambers 6 and V-arrangement anti-dazzling screen 3 can adopt the big material of absorptivity to make, and to absorb parasitic light, reduces the interference of bias light, and can make crude surface, to increase the absorption to light.
As required, the quantity of described optical receiver and described second optical receiver all can be one, also can be a plurality of, a plurality of optical receivers can be separately positioned on the different positions, so that form the first different detection light paths, a plurality of second optical receivers can be separately positioned on the different positions, and be provided with corresponding reflector separately, detect light path so that form different second,, reduce because of winged insect enters or other accidentalia cause wrong report or fail to report to improve reliability.
Claims (10)
1. smoke-temperature sensing fire integrated warning system, it is characterized in that comprising central processing system, warning system and detection system, described detection system comprises some heat detectors of surveying on-the-spot smoke detector and some scenes of being distributed in that are distributed in, described smoke detector is used for the smoke signal of collection site, described heat detector is used for the temperature signal of collection site, described central processing system is used to accept described smoke signal and temperature signal, according to default computing and judgment mode smoke signal and temperature signal are carried out data operation and fire judgement, meeting or exceeding the fire alarm standard is to send early warning signal, meeting or exceeding the fire alarm standard is that alerting signal takes place, described warning system comprises some alarms on-the-spot and the monitoring place that are separately positioned on, be used to accept the early warning signal and the alerting signal of central processing system, carry out early warning alarm and alarm.
2. smoke-temperature sensing fire integrated warning system as claimed in claim 1, it is characterized in that also being provided with some data acquisition units that communicate to connect with each self-corresponding smoke detector and/or heat detector respectively, described data acquisition unit is a digital signal corresponding with the sense smoke signal and/or the temperature-sensitive conversion of signals of connected smoke detector and/or heat detector detection, deliver to described central processing system, described data acquisition unit takes the mode of poll to obtain the sense smoke signal and/or the temperature-sensitive signal of corresponding smoke detector and/or heat detector detection.
3. smoke-temperature sensing fire integrated warning system as claimed in claim 2, it is characterized in that in the high zone of fire hazard degree or in whole search coverages, described smoke detector is provided with in groups, detector quantity in every group of detector is 2-3, described data acquisition unit obtains behind the sense smoke signal of detector on the same group and/or the temperature-sensitive signal these signals to be analyzed comparison, under the situation to each detector signal notable difference, carrying out validity judges, when the detectable signal of judging certain detector is invalid signals, reject invalid signals and the detector that produces this invalid signals is generated data that have this detector identification sign and cause of invalidity type designation, deliver to described central processing system, when the detectable signal that can't judge which detector is invalid, will be in each detection data or the maximum that send this group detector, two minimum end datas send to central processing system, suspicious signal signature data of additional simultaneously transmission, when the detectable signal no significant difference of detector on the same group, send to described central processing system for the detection data of this group detector with mean value.
4. smoke-temperature sensing fire integrated warning system as claimed in claim 3 is characterized in that difference at the minimax value of the detection data of detector on the same group surpasses 20% o'clock of minimum value and is judged as notable difference.
5. as claim 1,2,3 or 4 described smoke-temperature sensing fire integrated warning systems, it is characterized in that described smoke detector comprises optical transmitting set, optical receiver and detection chambers, the light that described optical transmitting set sends enters described detection chambers, described optical receiver receives the scattered light from described detection chambers, it is characterized in that also being provided with second optical receiver, periphery in the described detection chambers disperses to be provided with one or more reflecting plates, the light beam that described optical transmitting set sends is received by described second optical receiver behind described one or more baffle reflections, reflexes to light path between described second optical receiver by optical transmitting set through one or many and constitutes second of polyline shaped and detect light path.
6. smoke-temperature sensing fire integrated warning system according to claim 5, it is characterized in that the described second one or more line reflection light path that detects in the light path is crossing with the receiving light path of described optical receiver, the line reflection light path that the emission light path of described optical transmitting set and described one or more intersects with the receiving light path of described optical receiver constitutes forward direction type or backward type scattering light path with the receiving light path of described optical receiver respectively, detects light path by optical transmitting set through scattering to described optical receiver and constituting first by optical transmitting set scatters to described optical receiver again after the one or many reflection light path.
7. smoke-temperature sensing fire integrated warning system according to claim 6, it is characterized in that the emission light path of described optical transmitting set and the receiving light path intersecting area of described line reflection light path and described optical receiver all are positioned at described detection chambers, and constitute the described first effective scattering region that detects in the light path.
8. smoke-temperature sensing fire integrated warning system according to claim 7, the shell that it is characterized in that this smoke detector comprises base and the top cover that is connected with described base, the sidewall of described shell is made of a plurality of V-arrangement anti-dazzling screens, spacing between the adjacent V-arrangement anti-dazzling screen is less than making outside light can directly inject the spacing in space in the shell, described detection chambers is positioned at described base, in the space that top cover and V-arrangement anti-dazzling screen surround, described V-arrangement anti-dazzling screen is fixedlyed connected with described top cover or described base and is integral, and the connected mode of described top cover and described base is for being threaded or screw is fastenedly connected.
9. smoke-temperature sensing fire integrated warning system according to claim 8 is characterized in that the inside surface of the inside surface of described base, described top cover and V-arrangement anti-dazzling screen all adopt the high material of absorptance to make.
10. smoke-temperature sensing fire integrated warning system according to claim 9 is characterized in that the bottom of described reflector is provided with the flanging parallel with described base, and the screw retention by passing flanging is on described base.
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| CN200910085271A CN101706987A (en) | 2009-05-27 | 2009-05-27 | Smoke-temperature sensing fire integrated warning system |
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| CN200910085271A CN101706987A (en) | 2009-05-27 | 2009-05-27 | Smoke-temperature sensing fire integrated warning system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105356A (en) * | 2011-11-15 | 2013-05-15 | 西门子公司 | Danger detector for operation in nuclear field |
| US20130126508A1 (en) * | 2011-11-17 | 2013-05-23 | Texas Instruments Incorporated | Extending Radiation Tolerance By Localized Temperature Annealing Of Semiconductor Devices |
| CN103745553A (en) * | 2013-12-25 | 2014-04-23 | 广西科技大学 | Fire hazard automatic alarm apparatus |
| CN103745552A (en) * | 2013-12-25 | 2014-04-23 | 广西科技大学 | Automatic fire alarm system |
| CN103761825A (en) * | 2013-12-25 | 2014-04-30 | 广西科技大学 | Automatic fire alarming method |
| CN105374151A (en) * | 2014-12-15 | 2016-03-02 | 余姚市立鑫电子有限公司 | Fire alarm system and fire alarm method |
| CN108803367A (en) * | 2015-08-17 | 2018-11-13 | 常州爱上学教育科技有限公司 | The working method of the intelligent temperature control system of intelligent domestic system |
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2009
- 2009-05-27 CN CN200910085271A patent/CN101706987A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105356A (en) * | 2011-11-15 | 2013-05-15 | 西门子公司 | Danger detector for operation in nuclear field |
| US8907801B2 (en) | 2011-11-15 | 2014-12-09 | Siemens Aktiengesellschaft | Danger detector for operation in nuclear field, having heating system for heating typically non-radiation hardened semiconductor components to increase functional service life |
| US20130126508A1 (en) * | 2011-11-17 | 2013-05-23 | Texas Instruments Incorporated | Extending Radiation Tolerance By Localized Temperature Annealing Of Semiconductor Devices |
| CN103745553A (en) * | 2013-12-25 | 2014-04-23 | 广西科技大学 | Fire hazard automatic alarm apparatus |
| CN103745552A (en) * | 2013-12-25 | 2014-04-23 | 广西科技大学 | Automatic fire alarm system |
| CN103761825A (en) * | 2013-12-25 | 2014-04-30 | 广西科技大学 | Automatic fire alarming method |
| CN105374151A (en) * | 2014-12-15 | 2016-03-02 | 余姚市立鑫电子有限公司 | Fire alarm system and fire alarm method |
| CN108803367A (en) * | 2015-08-17 | 2018-11-13 | 常州爱上学教育科技有限公司 | The working method of the intelligent temperature control system of intelligent domestic system |
| CN108958310A (en) * | 2015-08-17 | 2018-12-07 | 吴彬 | Using the working method of the intelligent temperature control system of mobile network communication |
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Application publication date: 20100512 |