CN101388132A - Data fusing alarm system and method of linear fire detector - Google Patents
Data fusing alarm system and method of linear fire detector Download PDFInfo
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- CN101388132A CN101388132A CNA2008101689035A CN200810168903A CN101388132A CN 101388132 A CN101388132 A CN 101388132A CN A2008101689035 A CNA2008101689035 A CN A2008101689035A CN 200810168903 A CN200810168903 A CN 200810168903A CN 101388132 A CN101388132 A CN 101388132A
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Abstract
A data fusion fire warning system and a process thereof are provided. The process comprises adopting at least a linear type temperature sensing element to detect and generate at least two non equivalent values of a first electrical parameter and a second electric parameter at one moment, transmitting the two non equivalent values of the electrical parameter detected at the moment to an electrical signal measuring device, obtaining one function value at the moment by a data fusion device according to a preset function which at least comprises the first electrical parameter and the second electrical parameter, comparing the obtained function value with a preset value, and determining whether needs to send fire warnings according to the comparison result, or starting a fire warning device if needing to warn. A further technical scheme also can adopt two linear type temperature sensing elements to respectively detect and generate two non equivalent first electrical parameter and second electrical parameter, and also sequentially detects two non equivalent electric parameters at two different moments.
Description
The application be that Dec 31, application number in 2005 are 200510137648.4 the applying date, denomination of invention divides an application for the patented claim of " line type fire detector data fusing alarm system and method ".
Technical field
The present invention relates to a kind of data fusing alarm system and method that is used for line type fire detector.The present invention adopts the electric signal measurement device to gather the electrical quantity of at least two kinds of inequivalences that derive from linear temperature sensor in real time, the electrical quantity of these at least two kinds of inequivalences is carried out data fusion, determine whether to carry out fire alarm according to the result who merges again, for example differential temperature, constant temperature or different constant temperature are reported to the police.
Background technology
In the prior art, line style constant temperature, differential temperature or different constant temperature fire detector commonly used are a kind of broad-spectrum line type fire detectors, its principal feature is to use a linear temperature sensor (air hose or cable formula NTC type temperature sensing cable or cable formula thermocouple type temperature sensing cable), a kind of electrical quantity to linear temperature sensor detects, and carries out differential temperature or constant temperature fire alarm according to the comparative result of testing result and warning pre-value.But, the size of a kind of electrical quantity that records like this and rate of change can not reflect the size of temperature of temperature sensing element heated portion and the size of rate of temperature change fully, and just reflect two kinds of synthesis result that mainly influence parameter such as the temperature of detector line style temperature sensing element heated portion and the length of heated portion.Technical standard according to line type fire detector, qualified line type fire detector must be by two detections of the test of the action under certain test condition and the test of being failure to actuate, and qualified and underproof judgement is mainly carried out according to this single parameter of temperature of the heated portion of temperature sensing element.As seen, the single temperature sensing element of employing of the prior art and carry out the line type fire detector of fire alarm according to the testing result of single electrical quantity, can't measure the size of temperature of temperature sensing element heated portion and the size of variation of temperature rate accurately; Thereby can't under fire condition, accurately report to the police, also be difficult to two tests testing and be failure to actuate and test by the action of line type fire detector being carried out according to the technical standard of line type fire detector.Therefore, data fusion fire alarm system and the method that a kind of size that can reflect temperature also can reflect the size of rate of temperature change need to be proposed.
Summary of the invention
An object of the present invention is to provide a kind of fire alarm method of data fusion, this method has been utilized the electrical quantity of at least two kinds of inequivalences that derive from linear temperature sensor, and the electrical quantity of these two kinds of inequivalences carried out data fusion, carry out fire alarm according to fusion results, i.e. differential temperature or constant temperature fire alarm.The present invention can eliminate the length of being heated of temperature sensing element of line-type heat detector to the influence of its fire alarm function, thus the warning accuracy that improves detector, and can reduce the rate of false alarm of detector effectively.
Another object of the present invention provides a kind of fire alarm system of data fusion, this system has at least one linear temperature sensor that can survey the electrical quantity of at least two kinds of inequivalences, the electrical quantity of at least two kinds of inequivalences recording is sent to for example electric signal measurement device, merge calculating in the device by one of them data fusion, by one of them comparer result and a threshold value are compared again; Judge whether will report to the police according to fusion ratio result, thereby carry out the device of fire alarm, promptly carry out differential temperature or constant temperature fire alarm.
Above-mentioned purpose of the present invention is realized by following technical proposals.Data fusion fire alarm method of the present invention comprises, adopts a linear temperature sensor, and a described linear temperature sensor can produce first kind of electrical quantity a and second kind of electrical quantity b of at least two kinds of detected inequivalences.Detect the first kind of electrical quantity a of a certain moment t1 of described linear temperature sensor and numerical value a1, the b1 of second kind of electrical quantity b in real time; Detected first kind of electrical quantity of this moment and second kind of electrical quantity numerical value a1, b1 are transferred to data fusion device in the electric signal measurement device and calculate and judge, described data fusion device is according to a predetermined function f (a who comprises described first kind of electrical quantity a and second kind of electrical quantity b at least, b,), try to achieve functional value f (a1, a b1 in this moment,), with the functional value f that tried to achieve (a1, b1 ...) compare with a predetermined value d; The comparative result of described data fusion device output is sent in the device of fire alarm, send fire alarm signal.
Further technical scheme of the present invention can adopt two linear temperature sensors, produces first kind of electrical quantity a and second kind of electrical quantity b of two kinds of detected inequivalences respectively.Detect the first kind of electrical quantity a of a certain moment t1 of described linear temperature sensor and numerical value a1, the b1 of second kind of electrical quantity b respectively in real time; Constantly detected first kind of electrical quantity and second kind of electrical quantity numerical value a1, b1 are transferred to data fusion device in the electric signal measurement device and calculate and judge with this, described data fusion device is according to a predetermined function f (a who comprises described first kind of electrical quantity a and second kind of electrical quantity b at least, b,), try to achieve functional value f (a1, a b1 in this moment,), with the functional value f that tried to achieve (a1, b1 ...) compare with a predetermined value d; The comparative result of described data fusion device output sends to the electric signal measurement device in the device of fire alarm, is judged and is made and whether send fire alarm signal by it.
Further technical scheme of the present invention can adopt three or two linear temperature sensors, produce respectively first kind of electrical quantity a of detected two or more inequivalence, second kind of electrical quantity b, the third electrical quantity c, or the like, and described three kinds of electrical parameters detection line data of going forward side by side merged, carry out fire alarm according to fusion results, this will depend on the concrete condition in the place that will detect decides.
Compared with the prior art the present invention has following advantage:
1, because the present invention combines the electrical quantity of at least two kinds of inequivalences of linear temperature sensor considers, thereby can eliminate the influence of length of being heated of the temperature sensing element of line-type heat detector to its fire alarm function, improve the warning accuracy of detector, and can reduce the rate of false alarm of detector effectively.
2, the temperature sensing element of the present invention's employing has reversibility, after finishing warning, and along with the releasing of alert, the recovery naturally of environment temperature, this temperature sensing element can recover its original state, so can reuse after reporting to the police.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Figure 1A has a linear temperature sensor data fusing alarm system synoptic diagram of the present invention;
Figure 1B has two linear temperature sensor data fusing alarm system synoptic diagram of the present invention;
Fig. 2 A is the signal processing flow figure one of data fusion alarm method of the present invention;
Fig. 2 B is the signal processing flow figure two of data fusion alarm method of the present invention.
Embodiment
First embodiment:
Data fusing alarm system of the present invention 10 referring to Figure 1A, and referring to the signal processing flow figure one of the data fusion alarm method of the present invention of Fig. 2 A, data fusing alarm system 10 of the present invention adopts a linear temperature sensor, described linear temperature sensor 11 is placed in monitored scene in the usual way, but described linear temperature sensor can produce the electrical quantity a and the electrical quantity b of two kinds of detected inequivalences.
So-called electrical quantity a, the inequivalence of b is meant: under linear temperature sensor is heated the uncertain condition of length, line type fire detector is experimentized in the intensification or cooling test of chamber and actual fire, each of detected a and b a series of data constantly do not constitute certain functional relation, be a ≠ f1 (b) or b ≠ f2 (a), that is to say, can not be by a certain t1 a certain electrical quantity a constantly, the concrete numerical value a1 (or b1) of (or b) calculates this t1 another electrical quantity b (or concrete numerical value b1 (or a1) of another electrical quantity a) constantly by a definite funtcional relationship.
After described linear temperature sensor 11 detects (or first constantly) the first kind of electrical quantity a of t1 of a certain moment and concrete numerical value a1, the b1 of second kind of electrical quantity b, concrete numerical value a1, the b1 of these two kinds of electrical quantitys that record will be imported into a data fusing device 14 and calculate and judge; The computing unit 16 of this data fusion device has the predetermined function f (a that comprises first kind of electrical quantity a and second kind of electrical quantity b at least, b ...), try to achieve first kind of electrical quantity a and second kind of electrical quantity b thus at the functional value f (a1 that tests moment t1, b1 ...); Again with the functional value f that tries to achieve (a1, b1 ...) the predetermined value d that is provided with the comparer 18 of this data fusion device compares.The comparative result of described data fusion device 14 outputs according to comparative result, is judged and is made and whether send fire alarm signal by electric signal measurement device 22, restarts the device 20 of fire alarm.Described data fusion device can be the part in the electric signal measurement device.
In the present embodiment, choosing two kinds of electrical quantity a, b has following manner from a linear temperature sensor, but is not limited to this, for example:
Mode one: selected linear temperature sensor is NTC type temperature sensing cable (a negative temperature coefficient feature temperature sensing cable), the electric capacity a that exports between its a pair of signal output terminal and two electrical quantity signals of resistance b inequivalence;
Mode two: selected linear temperature sensor is continuous thermocouple type temperature sensing cable, the electric capacity a that exports between its a pair of signal output terminal and two electrical quantity signals of voltage b inequivalence;
Mode three: selected linear temperature sensor is PTC type temperature sensing cable (a ptc characteristics temperature sensing cable), the time constant a that exports between its a pair of signal output terminal and two electrical quantity signals of resistance b inequivalence;
Mode four: selected linear temperature sensor is a NTC type temperature sensing cable, the voltage a of the output between its a pair of signal output terminal and two electrical quantity signals of resistance b inequivalence;
Mode five: selected linear temperature sensor is continuous thermocouple type temperature sensing cable, the voltage a between its a pair of signal output terminal and two electrical quantity signals of resistance b inequivalence;
Mode six: selected linear temperature sensor is the ptc characteristics tinsel of big length (for example long 50--300 rice), the resistance signal a at its tinsel two ends and two electrical quantity inequivalences of ultrasonic vibration natural frequency wiry (resonant frequency) electric signal b.
Mode seven: selected linear temperature sensor is the quartz crystal silk, the capacitance signal a at its quartz crystal silk two ends and two electrical quantity inequivalences of quartz crystal silk alternating current vibration natural frequency (resonant frequency) electric signal b.
Second embodiment:
Signal processing flow figure two referring to the data fusion alarm method of the present invention of Fig. 2 B, the method of the fire alarm system of data fusion of the present invention also be to adopt a linear temperature sensor 11, described linear temperature sensor 11 can produce the electrical quantity a and the electrical quantity b of two kinds of inequivalences.Described linear temperature sensor 11 detects the first kind of electrical quantity a of first moment t1 and concrete numerical value a1, the b1 of second kind of electrical quantity b; Detect concrete numerical value a2, the b2 of first kind and second kind electrical quantity a, the b of second moment t2 again.
Concrete numerical value a1, b1, a2, the b2 of two kinds of electrical quantitys that record in this two moment is input to and calculates in the data fusion device 14 and judge; The computing unit 16 of this data fusion device has predetermined first kind of electrical quantity a that comprises two moment at least and the detected value a of second kind of electrical quantity b
T1, b
T1, a
T2, b
T2Function f (a
T1, b
T1, a
T2, b
T2...) (a wherein
T1, b
T1Be first kind of electrical quantity a in a certain moment and the detected value of second kind of electrical quantity b, a
T2, b
T2For another constantly first kind of electrical quantity a and the detected value of second kind of electrical quantity b), thereby try to achieve a functional value f (a1, b1, a2, b2 ...).Again with the functional value f that tries to achieve (a1, b1, a2, b2 ...) the predetermined value d that is provided with the comparer 18 of this data fusion device compares.The comparative result of described data fusion device 14 outputs according to comparative result, is judged and is made and whether send fire alarm signal by electric signal measurement device 22, thereby starts the device 20 of fire alarm.In the present embodiment, choose two kinds of electrical quantity a, b from the mode of a linear temperature sensor as described in first embodiment of front, but be not limited to this.
The 3rd embodiment:
Referring now to Figure 1B, has two linear temperature sensor data fusing alarm system synoptic diagram of the present invention, with Fig. 2 A be the signal processing flow figure one of data fusion alarm method of the present invention, another linear temperature sensor 12 in Figure 1B system is connected with data fusion device 14 too.The concrete numerical value a1 of first kind of electrical quantity a of described linear temperature sensor 11 a detected a certain moment t1; Described another linear temperature sensor 12 also is detected in the concrete numerical value b1 of second kind of electrical quantity b of this moment t1; Here the first kind of electrical quantity a of this moment t1 that said two linear temperature sensors record respectively and the concrete numerical value a1 of second kind of electrical quantity b, b1, a, b be inequivalence each other.First kind of electrical quantity a that is recorded at said moment t1 respectively by described two linear temperature sensors 11 and 12 and concrete numerical value a1, the b1 of second kind of electrical quantity b will be imported into data fusion device 14 and calculate and judge; The computing unit 16 of this data fusion device has the predetermined function f (a that comprises first kind of electrical quantity a and second kind of electrical quantity b at least, b ...), try to achieve first kind of electrical quantity a and second kind of electrical quantity b thus at a functional value f (a1 who tests moment t1, b1 ...); Again with the functional value f that tries to achieve (a1, b1 ...) the predetermined value d that is provided with the comparer 18 of this data fusion device compares.The comparative result of described data fusion device 14 outputs according to comparative result, is judged and is made and whether send fire alarm signal by the electric signal measurement device, starts the device 20 of fire alarm again.
In the present embodiment, choosing two kinds of electrical quantity a, b respectively from two linear temperature sensors has following manner, but is not limited to this, for example:
Mode one: selected two linear temperature sensors 11 are different with 12 type, for example wherein one be the NTC linear temperature sensor, another is a thermopair line style temperature sensing element; The electrical quantity inequivalence of generally dissimilar linear temperature sensors.
Mode two: the type of selected two temperature sensing elements 11 and 12 electrical quantity is identical, but electrical quantity is with variation of temperature rate (also claiming temperature coefficient) difference, the kind difference of the conductive filler in the NTC linear temperature sensor for example, or the content difference of conductive filler, all can cause the NTC linear temperature sensor to have different temperature-coefficient of electrical resistances, thereby cause the electrical quantity inequivalence of two temperature sensing elements 11 and 12.
Mode three: selected two temperature sensing elements 11 and 12 physically identical, the type difference of the electrical quantity of temperature sensing element output, for example two temperature sensing elements 11 and 12 are all selected same thermopair line style temperature sensing element for use, temperature sensing element output resistance signal wherein, another temperature sensing element output is because of being subjected to thermogenetic voltage signal; Again for example, two temperature sensing elements 11 and 12 are all selected the NTC linear temperature sensor for use, temperature sensing element output resistance signal wherein, another temperature sensing element output time constant signal.
Article two, linear temperature sensor is generally parallel is set together.So-called parallel being meant in fire test and lab investigation, two temperature sensing elements be heated length about equally or become certain ratio, two temperature sensing elements can be placed apart, also can combine.Article two, when linear temperature sensor combined, constituting the parts of temperature sensing element or element can be shared or merge, and to simplify the structure of temperature sensing element, makes two linear temperature sensors be combined into indivisible one.
The 4th embodiment:
Referring now to Figure 1B, has two linear temperature sensor data fusing alarm system synoptic diagram of the present invention, with Fig. 2 B be the signal processing flow figure two of data fusion alarm method of the present invention, another linear temperature sensor 12 in Figure 1B system is connected with data fusion device 14 too.Described two linear temperature sensors 11,12 detected first are concrete numerical value a1, the b1 of first kind of electrical quantity a, the second kind of electrical quantity b of t1 constantly; Detect concrete numerical value a2, the b2 of first kind and second kind electrical quantity a, the b of second moment t2 again. Electrical quantity a and electrical quantity b inequivalence.
Constantly concrete numerical value a1, b1, a2, the b2 of first kind of electrical quantity a being recorded of t1, t2 and second kind of electrical quantity b will be imported into and calculate in the data fusion device 14 and judge described two linear temperature sensors 11 and 12 said first and second respectively; The computing unit 16 of this data fusion device has predetermined first kind of electrical quantity a that comprises two moment at least and the detected value a of second kind of electrical quantity b
T1, b
T1, a
T2, b
T2Function f (a
T1, b
T1, a
T2, b
T2...) (a wherein
T1, b
T1Be first kind of electrical quantity a in a certain moment and the detected value of second kind of electrical quantity b, a
T2, b
T2For another constantly first kind of electrical quantity a and the detected value of second kind of electrical quantity b), thereby try to achieve a functional value f (a1, b1, a2, b2 ...).Again with the functional value f that tries to achieve (a1, b1, a2, b2 ...) the predetermined value d that is provided with the comparer 18 of this data fusion device compares.The comparative result of described data fusion device 14 outputs according to comparative result, is judged and is made and whether send fire alarm signal by electric signal measurement device 22, thereby starts the device 20 of fire alarm.
In the present invention, described function f can be referred to as the data fusion function.Described data fusion function f is a function relevant with the temperature T of linear temperature sensor heated portion, be that f directly or indirectly reflects the temperature T of heated portion of linear temperature sensor or any function of temperature rise rate T ', that is to say, f (a, b ... )=g1 (T) or f (a, b, )=h1 (T '), f (a
T1, b
T1, a
T2, b
T2... )=g2 (T) or f (a
T1, b
T1, a
T2, b
T2)=h2 (T '), the concrete form of f can be used the method for theoretical analysis and calculation, or the method for the testing experiment data being carried out regretional analysis, or the method that Theoretical Calculation combines with experimental data determines, being precondition by the action experiment test of line type fire detector and the experiment test of being failure to actuate.
In the present invention, described function f (a, b ...) what calculate is a warning parameter, wherein the electrical quantity that will detect and calculate also can be for two or more, for example above-mentioned various parameters.Described predetermined value d be warning parameter f (a, b ...) alarming threshold value.Function f (a, b ...) and electrical quantity a, b ... become corresponding funtcional relationship, its funtcional relationship can provide with forms such as tabulation, formula or curves.The numerical value f that its a1, b1 try to achieve (a1, b1 ...) mode that compares warning with predetermined value d optionally is set at one of following five kinds: the numerical value of function f is reported to the police during greater than predetermined value d; The numerical value of function f is reported to the police during less than predetermined value d; The numerical value of function f is reported to the police during more than or equal to predetermined value d; When being less than or equal to predetermined value d, the numerical value of function f reports to the police; When equaling predetermined value d, the numerical value of function f reports to the police.
Among the present invention, described two time period Δ t (Δ t=t2-t1) that detect between moment t2, the t1 preestablish as required, can equal line type fire detector and move the alarm time section in when test, the section At All Other Times that also can equal to set as required, general Δ t chooses in the 5min. scope at 0.2min..
Among the present invention, described predetermined value d can be a constant, it also can be a relative constant, promptly can change the quaternary function of the length that promptly described predetermined value d is environment temperature, ambient humidity, heated portion, the variation of temperature of heated portion with the length of the residing environment temperature of linear temperature sensor, ambient humidity, heated portion, the variation of temperature of heated portion.When some parameters in the variation of temperature of the length of environment temperature, ambient humidity, heated portion, heated portion remained unchanged, described threshold values was the function of remaining parameter.Numerical value when the numerical value of the length of environment temperature, ambient humidity, heated portion, the temperature of heated portion can be moment t1, numerical value in the time of also can being moment t2, can also be the t1 and the numerical value in a moment between the t2 constantly constantly, also can be the t1 numerical value constantly and the weighted mean value of t2 numerical value constantly.
Because the detection among the present invention belongs to the category of static measurement, the described moment does not also require it is an absolute moment, can allow bigger time lag, and influencing warning not produce excessive error is prerequisite.
Among the present invention, electrical quantity a, the b of described temperature sensing element can be voltage, electric current, resistance, electric capacity, inductance, time constant, natural frequency signals such as (resonant frequencies), it also can be above-mentioned signal rate over time, local or when all being heated when temperature sensing element, the size of electrical quantity changes, can according to the size of electrical quantity or electrical quantity over time the size of rate carry out constant temperature or differential temperature is reported to the police.
In the present invention, why requiring electrical quantity a, b inequivalence, is because have only in this case, just can merge two electrical quantity a, b and produce a warning parameter, and principle is as follows:
Electrical quantity a, b depend on length L and temperature T (or temperature rise rate T ') and other factor, i.e. a=f1 (L, the T of the heated portion of linear temperature sensor respectively,) (or a=f1 (L, T ' ...), b=f2 (L, T ...) (or b=f2 (L, T ',), above-mentioned two equations can be with the method for theoretical analysis and calculation, or the method that the testing experiment data are carried out regretional analysis, or the method that Theoretical Calculation combines with experimental data is determined; When two electrical quantity a, b inequivalence, it is the equation with two unknowns group of unknown number that two above-mentioned equations have constituted with L, T (or T '), with cutting first method or Substitution method or other method is found the solution above-mentioned system of equations, just can draw the function expression that only contains a unknown number L (or T or T ').Behind the concrete numerical value of having determined a, b, can determine out the concrete numerical value of L, T (or T '), the size of L, T (or T ') has been represented the scale of fire and the degree of fire respectively, linear temperature sensor mainly carries out constant temperature according to the size of T reports to the police, and carries out differential temperature according to the size of T ' and reports to the police.Factor L when two kinds of electrical quantitys that influence linear temperature sensor, when T can not be obtained by above-mentioned equation fully, need to increase an equation, can realize by increasing a linear temperature sensor (i.e. the corresponding electrical quantity of output), for example when the environment temperature of linear temperature sensor or ambient humidity are inhomogeneous, can not reflect the temperature or the humidity of the erecting stage of linear temperature sensor by point type thermometer or hygrometer comprehensively, just belong to this situation.
Whether main main points of the present invention are to select the electrical quantity that detects two or more mutual inequivalences for use, these a plurality of electrical quantitys are merged calculate and comparison, thereby judge exactly and will report to the police.At this, claims have given description to protection scope of the present invention, still, everything has comprised invention main points of the present invention, do not deviate from aim of the present invention, and any variation scheme all falls within protection scope of the present invention.
Claims (14)
1, a kind of method of fire alarm of data fusion, it is characterized in that described method comprises: adopt at least one linear temperature sensor, described linear temperature sensor can produce first kind of electrical quantity a and second kind of electrical quantity b of at least two kinds of detected inequivalences; Detect the first kind of electrical quantity of a certain moment t1 of described linear temperature sensor and the numerical value a1 of second kind of electrical quantity in real time, b1; And will be somebody's turn to do the numerical value a1 of detected first kind of electrical quantity of the moment and second kind of electrical quantity, b1 is transferred to data fusion device and calculates and compare, described data fusion device according to a predetermined function f that comprises described first kind of electrical quantity a and second kind of electrical quantity b at least (a, b ...), try to achieve the functional value f (a1 of this moment t1, b1 ...), with the functional value f (a1 that is tried to achieve, b1 ...) compare with a predetermined value d; Comparative result to described data fusion device output judges whether to send fire alarm signal then, if report to the police, then starts fire alarm and reports to the police.
2, a kind of method of fire alarm of data fusion, it is characterized in that described method comprises: adopt at least one linear temperature sensor, described linear temperature sensor can produce first kind of electrical quantity a and second kind of electrical quantity b of at least two kinds of detected inequivalences; Detect the first kind of electrical quantity a of first moment t1 and concrete numerical value a1, the b1 of second kind of electrical quantity b in real time, and detect concrete numerical value a2, the b2 of first kind and second kind electrical quantity a, the b of second moment t2; Concrete numerical value a1, b1, a2, the b2 of described first and second two kinds of electrical quantitys that constantly record be input to calculate in the data fusion device and compare, described data fusion device is according to predetermined first a kind of electrical quantity a that comprises two moment at least and the detected value a of second kind of electrical quantity b
T1, b
T1, a
T2, b
T2Function f (a
T1, b
T1, a
T2, b
T2...), try to achieve a functional value f (a1, b1, a2, b2 ...); Again with the functional value f that tries to achieve (a1, b1, a2, b2 ...) with this data fusion device in predetermined value d compare; Judge whether to get angry the calamity alerting signal according to comparative result, if report to the police, the device that then starts fire alarm is reported to the police.
3,, it is characterized in that in described at least one linear temperature sensor is NTC or thermocouple principle linear temperature sensor according to the fire alarm method of the data fusion of claim 1 or 2.
4, according to the fire alarm method of the data fusion of claim 1 or 2, it is characterized in that detecting first kind of described inequivalence and second kind of electrical quantity a, b one of following manner is arranged, but be not limited to this, (1) choosing linear temperature sensor is NTC type temperature sensing cable, then detects electric capacity and two inequivalence electrical quantitys of the resistance signal exported between its a pair of signal output terminal; (2) choosing linear temperature sensor is continuous thermocouple type temperature sensing cable, then detects electric capacity and two inequivalence electrical quantitys of the voltage signal exported between its a pair of signal output terminal; (3) choosing linear temperature sensor is PTC type temperature sensing cable, detects time constant and two inequivalence electrical quantitys of the resistance signal exported between its a pair of signal output terminal; (4) choosing linear temperature sensor is NTC type temperature sensing cable, detects voltage and two inequivalence electrical quantitys of resistance signal of the output between its a pair of signal output terminal; (5) choosing linear temperature sensor is continuous thermocouple type temperature sensing cable, detects voltage and two inequivalence electrical quantity letters of resistance between its a pair of signal output terminal; (6) choose the ptc characteristics tinsel that linear temperature sensor is big length, detect resistance signal and two inequivalence electrical quantitys of described ultrasonic vibration natural frequency signal wiry at described tinsel two ends; And (7) to choose linear temperature sensor be the quartz crystal silk, detects capacitance signal and two inequivalence electrical quantitys of described quartz crystal silk alternating current vibration natural frequency signal at described quartz crystal silk two ends.
5, a kind of method of fire alarm of data fusion, it is characterized in that described method comprises: adopt one and another linear temperature sensor, described one and another linear temperature sensor can produce first kind of electrical quantity a and second kind of electrical quantity b of two kinds of detected inequivalences respectively; Detect the numerical value b1 of second kind of electrical quantity of the numerical value a1 of first kind of electrical quantity of the described linear temperature sensor of a certain moment t1 and another linear temperature sensor respectively in real time; And with the numerical value a1 of detected first kind of electrical quantity of the described moment and second kind of electrical quantity, b1 is transferred to data fusion device and calculates and compare, described data fusion device according to a predetermined function f that comprises described first kind of electrical quantity a and second kind of electrical quantity b at least (a, b ...), try to achieve the functional value f (a1 of described first moment t1, b1 ...), with the functional value f (a1 that is tried to achieve, b1 ...) compare with a predetermined value d; Comparative result to described data fusion device output judges whether to send fire alarm signal then, if report to the police, then starts fire alarm and reports to the police.
6, a kind of method of fire alarm of data fusion, it is characterized in that described method comprises: adopt one and another linear temperature sensor, described one and another linear temperature sensor can produce first kind of electrical quantity a and second kind of electrical quantity b of two kinds of detected inequivalences respectively; Detect the first kind of electrical quantity a of first moment t1 and concrete numerical value a1, the b1 of second kind of electrical quantity b respectively in real time; Detect concrete numerical value a2, the b2 of first kind and second kind electrical quantity a, the b of second moment t2 again; Concrete numerical value a1, b1, a2, the b2 of described first and second two kinds of electrical quantitys that constantly record be input to calculate in the data fusion device and compare, described data fusion device is according to predetermined first a kind of electrical quantity a that comprises two moment at least and the detected value a of second kind of electrical quantity b
T1, b
T1, a
T2, b
T2Function f (a
T1, b
T1, a
T2, b
T2...), try to achieve a functional value f (a1, b1, a2, b2 ...); Again with the functional value f that tries to achieve (a1, b1, a2, b2 ...) with this data fusion device in predetermined value d compare; Judge whether to get angry the calamity alerting signal according to comparative result, if report to the police, the device that then starts fire alarm is reported to the police.
7,, it is characterized in that at least one of described linear temperature sensor is NTC or thermocouple principle linear temperature sensor according to the fire alarm method of the data fusion of claim 5 or 6.
8, according to the fire alarm method of the data fusion of claim 5 or 6, it is characterized in that detecting first kind of described inequivalence and second kind of electrical quantity a, b one of following manner is arranged, but be not limited to this, (1) chooses the different linear temperature sensors of two types,, NTC linear temperature sensor and another thermopair line style temperature sensing element, the electrical quantity inequivalence of the dissimilar linear temperature sensor that is generally detected; (2) choose the identical but electrical quantity of type with variation of temperature rate different one and another linear temperature sensor, thereby detect the inequivalence electrical quantity that obtains described and another temperature sensing element; And (3) choose physically identical described one and another temperature sensing element, but detect the dissimilar inequivalence electrical quantity that it is exported separately.
9, according to the fire alarm method of claim 1 or 2 or 5 or 6 described data fusion, it is characterized in that described pre-value d can be a relative constant, i.e. variation with at least one parameter in the length of the heated portion of described linear temperature sensor, the temperature of heated portion, residing environment temperature, four parameters of residing ambient humidity changes.
10, a kind of system of fire alarm of data fusion, it is characterized in that described system comprises at least one linear temperature sensor, described linear temperature sensor produces first kind of electrical quantity a and second kind of electrical quantity b numerical value a1 at a time of at least two kinds of detected inequivalences, b1; Data fusion device comprises the numerical value a1 of computing unit to detected first kind of electrical quantity and second kind of electrical quantity, b1 calculates and compares, wherein said data fusion device according to a predetermined function f that comprises described first kind of electrical quantity a and second kind of electrical quantity b at least (a, b ...), try to achieve the functional value f (a1 of this first moment t1, b1 ...), described data fusion device also comprises the functional value f (a1 of comparer to being tried to achieve, b1 ...) compare with a predetermined value d; The electric signal measurement device judges whether to send fire alarm signal to the comparative result of described data fusion device output; And receive the fire alarm installation that alerting signal is reported to the police.
11, a kind of system of fire alarm of data fusion, it is characterized in that described system comprises at least two linear temperature sensors, described each linear temperature sensor can produce first kind of electrical quantity a and second kind of electrical quantity b numerical value a1 at a time of at least two kinds of detected inequivalences, b1; Data fusion device comprises the numerical value a1 of computing unit to detected first kind of electrical quantity and second kind of electrical quantity, b1 calculates and compares, wherein said data fusion device according to a predetermined function f that comprises described first kind of electrical quantity a and second kind of electrical quantity b at least (a, b ...), try to achieve the functional value f (a1 of this first moment t1, b1 ...), described data fusion device also comprises the functional value f (a1 of comparer to being tried to achieve, b1 ...) compare with a predetermined value d; The electric signal measurement device judges whether to send fire alarm signal to the comparative result of described data fusion device output; And receive the fire alarm installation that alerting signal is reported to the police.
12,, it is characterized in that at least one of described linear temperature sensor is NTC or thermocouple principle linear temperature sensor according to the fire alarm system of the data fusion of claim 10 or 11.
13, according to the fire alarm system of the data fusion of claim 10 or 11, its feature is provided with in that described two linear temperature sensors are parallel.
14, according to the fire alarm method of the data fusion of claim 1 or 2 or 5 or 6, it is characterized in that: described function f is a function relevant with the temperature T of the heated portion of linear temperature sensor.
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