CN103337126B - A kind of multifunctional fire-fighting emergency set with redundancy determination - Google Patents

A kind of multifunctional fire-fighting emergency set with redundancy determination Download PDF

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CN103337126B
CN103337126B CN201310243942.8A CN201310243942A CN103337126B CN 103337126 B CN103337126 B CN 103337126B CN 201310243942 A CN201310243942 A CN 201310243942A CN 103337126 B CN103337126 B CN 103337126B
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signal
unit
processing unit
signal processing
circuit
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CN103337126A (en
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邹炜亮
熊慧珍
王海红
赵常茂
罗武龙
戴江
陈玉良
陈锡平
幸秀华
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State's net Gaoan City, Jiangxi powers limited liability company
State Grid Corp of China SGCC
State Grid Jiangxi Electric Power Co Ltd
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State's Net Gaoan City Jiangxi Powers LLC
State Grid Corp of China SGCC
State Grid Jiangxi Electric Power Co Ltd
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Abstract

The present invention relates to a kind of multifunctional fire-fighting emergency set with redundancy determination, it is the redundancy determination device of a triplex redundance, it includes three Smoke Detection unit and a signal processing unit corresponding thereto, a motor unit, also include a comparing unit and a logic and control unit, wherein, described comparing unit calculates the secondary signal processing unit signal registration to the first signal processing unit, the 3rd signal processing unit signal registration to the first signal processing unit, the 3rd signal processing unit signal registration to secondary signal processing unitAnd carry out threshold determination in transmitting it to described logic and control unit, if described coincidence angle value is less than threshold value, then conclude that in wherein two Smoke Detection unit, the smokescope of the position of detection exceeds standard, the present invention has a multifunctional fire-fighting emergency set of redundancy determination, uses triplex redundance redundancy to judge, it is judged that result more accurate, warning measure can be taked in time, be unlikely to again to cause erroneous judgement.

Description

A kind of multifunctional fire-fighting emergency set with redundancy determination
Technical field
The present invention relates to a kind of fire-fighting emergent device, particularly relate to a kind of emergent dress of multifunctional fire-fighting with redundancy determination Put.
Background technology
Fire-fighting emergent equipment of the prior art is mainly a fire emergency lamp, is provided with testing circuit, process in this lamp Circuit and on-off circuit, arrange a certain position in the line, the fuel gas in detection air or smokescope by this lamp.
As, Chinese patent " a kind of intelligent radio fire emergency lamp ", application number: 201110385858.0 disclose a kind of energy Wireless fire emergency lamp, this emergency light module includes power management module, LED light source and battery, power management module circuit bag Include switching power circuit, charging circuit and discharge circuit, communication and control module for the discharge and recharge information control to lamp module System, and process the information passed back of light fixture, and carry out the mutual of data and signal by RF transceiver with extraneous;Power supply pipe Reason module is used for power management and the signals collecting of lamp interior, and the participation collected is passed to communication control module.Should The process of signal is the most effectively judged by lamp, it is difficult to accident is carried out accurate and errorless judgement.
For drawbacks described above, creator of the present invention provides a kind of more perfect scheme.
Summary of the invention
It is an object of the invention to provide a kind of multifunctional fire-fighting emergency set with redundancy determination, to overcome above-mentioned skill Art defect.
For achieving the above object, the present invention provides a kind of emergent dress of multifunctional fire-fighting with redundancy determination
Put, it is the redundancy determination device of a triplex redundance, and it includes three Smoke Detection unit and corresponding thereto One signal processing unit, a motor unit, also include a comparing unit and a logic and control unit, wherein,
Described Smoke Detection unit is connected with described signal processing unit, and it includes a Smoke Sensor, and it is arranged on this Diverse location on indoor fire-fighting circuit, it transmits to institute after smog detected and gas concentration information are changed into the signal of telecommunication State in signal processing unit;
Described signal processing unit, its electric current gathering connected Smoke Detection unit and voltage signal, gathering Time, to signal waveform, at every continuous printIn the individual cycle, each cycle selectsThe sampled point of individual predetermined time, at interval of the timeSample once, continuous samplingSecondary;And by the voltage signal gathered and current signal transfer to the computing storage mould in the phase Process in block;
Described comparing unit includes a comparator, and electric current and the voltage acquisition of storage in all signal processing units are believed by it Number carry out calculation process, and calculate according to the following equation often in group electric current and voltage signal secondary signal processing unit to the first letter The registration of number processing unit,
In formula,Represent the electric current of first and second signal processing unit and the registration of voltage signal,WithPoint Do not represent the voltage signal of described first signal processing unit collection, current signal,WithRepresent described secondary signal respectively The voltage signal of processing unit collection, current signal,Represent mean square deviation computing,Represent integral operation;
The described secondary signal processing unit signal registration to the first signal processing unitCarry out according to the following equation Calculate;
In formula,Represent sampling group number,Represent sequence number,Represent often secondary signal described in group signal The processing unit signal registration to the first signal processing unit;
Described comparing unit calculates the secondary signal processing unit signal registration to the first signal processing unit, the Three signal processing units signal registration to the first signal processing unit, the 3rd signal processing unit to secondary signal at The signal registration of reason unit, and transmit it in described logic and control unit;
Described logic and control unit are a MCU processor, are stored with a registration threshold value, described logic and control Unit processed is by the coincidence angle value of described calculating gained and registration threshold valueCompare, if described coincidence angle value is less than threshold value, Then conclude that in wherein two Smoke Detection unit, the smokescope of the position of detection exceeds standard;By three respectively with registration threshold value Compare, then can conclude that in a certain Smoke Detection unit, the smokescope of the position of detection exceeds standard;And to described action list Unit sends action command.
Further, above-mentioned registration is done difference and takes absolute value by described comparing unit, i.e. takes, With, after calculating result, by this absolute difference result of calculation transmission to described logic and control unit;
Described logic and control unit internal memory contain a standard value, above-mentioned registration does difference the numerical value taken absolute value With standard valueContrast, if three is all higher than standard value, then conclude in a certain Smoke Detection unit of above-mentioned judgement and examine The smokescope of the position surveyed exceeds standard really.
Further, select in described signal processing unit each cycleThe time interval of individual sampled pointUnder according to State formula to calculate,
In formula,Represent the time interval of sampled point,For correction factor, its size is determined by sampled point quantity,Table Show the angular frequency of signal, the performance of Smoke Sensor determine,For initial phase angle,Represent the time of signal period,Table Show the peak value of signal waveform.
Further, described signal processing unit includes a coupling protection circuit, a detecting circuit, a filter circuit, one puts Large gain circuit and A/D change-over circuit, above-mentioned each module is sequentially connected with, wherein,
Described coupling protection circuit, it is in order to suppress electrical interference, and signal passes through described after described coupling protection circuit Detection module;
Described detection module, in order to detect the demand data waveform in signal to be transmitted;
The signal filtering of collection is obtained demand data waveform by described filter circuit;
After the acquired signal of described gain amplifier module is amplified, it is reduced to original waveform.
Further, described motor unit includes a relay circuit, a telecommunication circuit, a buzzer and a LED lamp, its In,
Described logic and control unit and described relay circuit are connected by described telecommunication circuit;In described logic and control When unit judges somewhere processed smokescope exceeds standard, described telecommunication circuit sends a high level signal, and described relay circuit closes, Controlling described buzzer and LED connects electricity, described buzzer sends warning, and described LED is opened.
Further, described in there is the multifunctional fire-fighting emergency set of redundancy determination also include a power module, it includes one Power switch circuit, a charging circuit, a discharge circuit and a rechargeable battery, wherein,
Described power module when smokescope is normal, close described power switch circuit to described Smoke Detection unit, Detecting signal unit and motor unit are powered, and described rechargeable battery is persistently charged by described charging circuit;
When described logic and control unit judge concentration over-standard occur, described power module turns off the power switch circuit, Connect described discharge circuit and buzzer and LED are powered.
Further, described gain amplifier module by the module loading of all collections to same magnitude of voltage.
Further, described registration threshold valueValue is 0.95, described standard valueValue is 0.05.
The beneficial effects of the present invention is compared with the prior art: the present invention has the multifunctional fire-fighting of redundancy determination and meets an urgent need Device, uses the judgment means of triplex redundance, three positions in circuit is respectively provided with Smoke Detection element, gathers signal respectively Sending to a comparing unit, comparing unit carries out redundancy determination, the two-by-two registration of signal calculated to three kinds of signals, and will weight Right value is delivered to logic and control unit and is compared with a threshold value;The coincidence angle value of every two kinds of signals make difference take absolute value and with One threshold decision, processes after confirming the position occurring smokescope to exceed standard;Two kinds of threshold values are used to judge respectively, it is judged that Result more accurate, warning measure can be taked in time, be unlikely to again to cause erroneous judgement, and cause confusion;During signals collecting, and Not Real-time Collection signal, but it is sampled point selection within the selected cycle;And when selective sampling point, the closer to peak value Place, the time interval of collection is the shortest, sampling advisability higher;During signal processing, by all signal loading on same voltage It is convenient for redundancy to judge.
Accompanying drawing explanation
Fig. 1 is the functional block diagram that the present invention has the multifunctional fire-fighting emergency set of redundancy determination;
Fig. 2 is the functional block diagram that the present invention has the signal processing unit of the multifunctional fire-fighting emergency set of redundancy determination;
Fig. 3 is the power module that the present invention has the signal processing unit of the multifunctional fire-fighting emergency set of redundancy determination Functional block diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detail technical features of the present invention is further described, in order to be more clearly understood from this Invention.
Referring to shown in Fig. 1, it has the functional block diagram of multifunctional fire-fighting emergency set of redundancy determination for the present invention, In the present invention, it is the redundancy determination device of a triplex redundance, described fire-fighting emergent device include three Smoke Detection unit and A signal processing unit, a power module and a motor unit corresponding with described Smoke Detection unit, also includes that one compares Unit, it is connected with a logic control element, and described motor unit includes buzzer and a high-power LED lamp.
In the present invention, outfan and one first signal processing unit 2 of the first Smoke Detection unit 1 are connected, and it will The smog detected and gas concentration information change into transmission extremely described first signal processing unit 2 after the signal of telecommunication, in this enforcement In example, described first Smoke Detection unit 1 includes one first Smoke Sensor, and it is arranged on this indoor fire-fighting circuit, in real time Smokescope in detection air, and at the concentration value preset more thanTime, produce a heavy current and strong voltage signal and pass Transport in described first signal processing unit 2.
Referring to shown in Fig. 2, it has the signal processing list of multifunctional fire-fighting emergency set of redundancy determination for the present invention The functional block diagram of unit, described first signal processing unit 2 includes coupling protection circuit 21, detecting circuit 22, filtered electrical Road 23, one gain amplifier circuit 24, A/D change-over circuit 25 and one first computing memory module 26, above-mentioned each module sequentially connects Connecing, wherein, described coupling protection circuit 21, it is in order to suppress electrical interference, and signal passes through after described coupling protection circuit 21 Described detection module 22, in order to detect the demand data waveform in signal to be transmitted, then is needed through described filter circuit 23 Seek data waveform, after described gain amplifier module 24 is amplified, be reduced to original waveform;Again through described A/D change-over circuit 25 voltage signals that will gatherAnd current signalTransmission processes to described first computing memory module 26.
In the present invention, described first signal processing unit 2 is first to the voltage in described first Smoke Detection unit 1 and electricity After stream signal is acquired, then calculate through processing.Electric current and voltage signal are acquired by described first signal processing unit 2 Time, take the mode of stochastic sampling to carry out, to signal waveform, at every continuous printIn the individual cycle, each cycle selectsIndividual default The sampled point in moment, at interval of the timeSample once, continuous samplingSecondary;In order to ensure the referring to property of sampled data with Accuracy, selected within each cycleThe time interval of individual sampled point(1) calculates according to the following equation,
(1)
In formula,Represent the time interval of sampled point,For correction factor, its size is determined by sampled point quantity,Table Show the angular frequency of signal, the performance of Smoke Sensor determine,For initial phase angle,Represent the time of signal period,Table Show the peak value of signal waveform.
Sampling through above-mentioned formula (1), when signal amplitude is the biggest, sample the most intensive, the referring to property of sampled data is the strongest; At the sampling not real-time sampling of this signal processing unit, but to signal data according to pre-conditioned sampling so that follow-up Signal processing data volume reduces, and alleviates numerous and diverse computing that data process.
Described first computing memory module 26 is by above-mentioned collectionGroup voltage signalAnd current signal, arrange Form a voltage and current matrix, and be stored in the phase.
In the present invention, outfan and a secondary signal processing unit 12 of the second Smoke Detection unit 11 are connected, institute Stating the 3rd smog test cell 111, secondary signal processing unit the 12, the 3rd signal processing unit 121 is believed according to described first Signal is acquired by number algorithm that processing unit 2 is identical, obtains voltage signalAnd current signal, carry out arranging formation one Voltage and current matrix, and be stored in one second computing memory module;And described gain amplifier module is by all signals On-load voltage in reason unit is carried in same numerical value, in order to compare.
Described second Smoke Detection unit 11 and a Smoke Detection unit 1 are arranged on the diverse location in same circuit, its Smokescope at detection position the most in real time;In the present invention, be provided with three Smoke Detection unit and with its phase Corresponding signal processing unit, carries out data acquisition three positions simultaneously, and the signal of each station acquisition carries out redundancy determination.
Including a comparator in described comparing unit 3, electric current and the voltage of storage in all signal processing units are adopted by it Collection signal carries out calculation process, calculates a registration respectively, and transmit it in described logic control element 10, existing Illustrate with the first signal processing unit 1 and secondary signal processing unit 12, its voltage and current signal that will gather respectively Transmission is in described comparing unit 3, and electric current and voltage letter during (2) calculate first and second signal processing unit according to the following equation Number registration,
(2)
In formula,Represent first and second group of electric current and the registration of voltage signal,WithRepresent described respectively The voltage signal of one signal processing unit collection, current signal,WithRepresent described secondary signal processing unit collection respectively Voltage signal, current signal,Represent mean square deviation computing,Represent integral operation;
The described secondary signal processing unit 12 signal registration to the first signal processing unit 1According to the following equation (3) calculate;
(3)
In formula,Represent sampling group number,Represent sequence number,Represent often secondary signal described in group signal The processing unit signal registration to the first signal processing unit.
In like manner, the registration of described first and third signal processing unitCalculate by following formula (4),
(4)
In formula,Represent the electric current of first and third signal processing unit and the registration of voltage signal,WithPoint Do not represent the voltage signal of described first signal processing unit collection, current signal,WithRepresent respectively at described signal The voltage signal of reason unit collection, current signal,Represent mean square deviation computing,Represent integral operation.
In like manner, the registration of second and third signal processing unit describedCalculate by following formula (5),
(5)
In formula,Represent the electric current of first and third signal processing unit and the registration of voltage signal,WithPoint Do not represent the voltage signal of described first signal processing unit collection, current signal,WithRepresent respectively at described signal The voltage signal of reason unit collection, current signal,Represent mean square deviation computing,Represent integral operation.
In the present embodiment, illustrate as a example by the Smoke Detection unit judges of triplex redundance.
Described comparing unit 3 carries out registration calculating respectively to three Smoke Detection unit, i.e. calculates secondary signal and processes The unit signal registration to the first signal processing unit, the 3rd processing unit signal weight to the first signal processing unit Right, the 3rd processing unit signal registration to secondary signal processing unit;Described comparing unit 3 is by above-mentioned coincidence Degree does difference and takes absolute value, and i.e. takes,With, after calculating result, by signal registration with In absolute difference result of calculation transmission extremely described logic and control unit 10.
Described logic and control unit 10 are a MCU processor or a PLC, and it is integrated in a switch board, storage in it There is a registration threshold valueWith a standard value, described logic and control unit 10 are by the coincidence angle value of described calculating gained and weight Right threshold valueCompare, if described coincidence angle value less than threshold value, then concludes the position of detection in wherein two Smoke Detection unit The smokescope at the place of putting exceeds standard;By three respectively with registration threshold valueCompare, then can conclude that a certain Smoke Detection unit The smokescope of the position of middle detection exceeds standard.
Further, above-mentioned registration is done difference the numerical value taken absolute value and standard valueContrast, if three is equal More than standard value, then conclude that in a certain Smoke Detection unit of above-mentioned judgement, the smokescope of the position of detection surpasses really Mark.
As in described first Smoke Detection unit, the smokescope of the position of detection exceeds standard, thenWithIt is respectively less than , and,WithValue be all higher than standard value
In the present embodiment, described registration threshold valueValue is 0.95, described standard valueValue is 0.05.
In the present invention, use two kinds of threshold values to carry out redundancy determination respectively, it is judged that result more accurate.
Described logic and control unit 10 detect that certain smokescope exceeds standard, then send to corresponding motor unit and refer to Order, in the present invention, the first motor unit 5 includes a relay circuit and a telecommunication circuit, described logic and control unit 10 Connected by described telecommunication circuit with described relay circuit.Judge that somewhere smokescope surpasses in described logic and control unit 10 Timestamp, described telecommunication circuit sends a high level signal, and described relay circuit closes, and controls described buzzer and LED connects Electricity, described buzzer sends warning, and described LED is opened.
Referring to shown in Fig. 3, it has the signal processing list of multifunctional fire-fighting emergency set of redundancy determination for the present invention The functional block diagram of the power module of unit, in the present invention, power module provides electric energy, the first power module 4 when LED is opened Including power switch circuit 41, charging circuit 42, discharge circuit 43 and a rechargeable battery 44, described power module is at cigarette When mistiness degree is normal, close described power switch circuit to described first Smoke Detection unit the 1, first detecting signal unit 2 and First motor unit 5 is powered, and described rechargeable battery 44 is persistently charged by described charging circuit 43;When described logic and control are single Unit 10 judges when there is concentration over-standard, and the most described power module turns off the power switch circuit 41, connect described discharge circuit 43 and Buzzer and LED are powered.
Making reference with preferred embodiment above, technical characteristic and effect to the present invention provide a brief description, this Bright being not limited to above-mentioned embodiment, without departing from the spirit and scope of the present invention, those skilled in the art can make various change And amendment.

Claims (8)

1. a multifunctional fire-fighting emergency set with redundancy determination, it is characterised in that it is the redundancy determination of a triplex redundance Device, fire-fighting emergent device includes three Smoke Detection unit and a signal processing list corresponding with Smoke Detection unit Unit, a motor unit, also include a comparing unit and a logic and control unit, wherein,
Described Smoke Detection unit is connected with described signal processing unit, and it includes a Smoke Sensor, and it is disposed in the interior and disappears Diverse location on anti-circuit, the smog detected and gas concentration information are changed into transmission extremely described signal after the signal of telecommunication by it In processing unit;
Described signal processing unit, its electric current gathering connected Smoke Detection unit and voltage signal, when gathering, right Signal waveform, within K the cycle of every continuous print, each cycle selects the sampled point of n predetermined time, at interval of time T0Sampling one Secondary, continuous sampling M time;And by the voltage signal gathered and a computing storage of current signal transfer extremely described signal processing unit Process in module;
Described comparing unit includes a comparator, and electric current and the voltage acquisition signal of storage in all signal processing units are entered by it Row operation process, and calculate according to the following equation often group electric current and voltage signal in secondary signal processing unit to the first signal at The registration P of reason unit21,
P 21 ( u 1 , i 1 ) = Σ u 2 , i 2 ( T ( u 2 , i 2 ) * I ′ ( u 1 + u 2 , i 1 + i 2 ) ) Σ u 2 , i 2 T ( u 2 , i 2 ) 2 * Σ u 2 , i 2 I ( u 1 + u 2 , i 1 + i 2 ) 2
In formula, P21(u1,i1) represent often group electric current and the registration of voltage signal, u1And i1Represent respectively at described first signal The voltage signal of reason unit collection, current signal, u2And i2Represent the voltage letter that described secondary signal processing unit gathers respectively Number, current signal, T represents mean square deviation computing, and I and I ' represents integral operation;
The described secondary signal processing unit signal registration P to the first signal processing unit21Calculate according to the following equation;
P 21 ( u , i ) = Σ j = 1 M P 1 j ( u 1 , i 1 ) M
In formula, M represents sampling group number, and j represents sequence number, P1j(u1,i1) represent often secondary signal processing unit described in group signal Signal registration to the first signal processing unit;
Described comparing unit calculates the secondary signal processing unit signal registration P to the first signal processing unit21, the 3rd signal The processing unit signal registration P to the first signal processing unit31, the 3rd signal processing unit is to secondary signal processing unit Signal registration P32, and transmit it in described logic and control unit;
Described logic and control unit are a MCU processor, are stored with registration threshold value P0, described logic and control are single Unit will calculate coincidence angle value and registration threshold value P of gained0Compare, if described coincidence angle value is less than threshold value, then conclude it In in two Smoke Detection unit the smokescope of the position of detection exceed standard;By three respectively with registration threshold value P0Compare Right, then can conclude that in a certain Smoke Detection unit, the smokescope of the position of detection exceeds standard;And send to described motor unit Action command.
The multifunctional fire-fighting emergency set with redundancy determination the most according to claim 1, it is characterised in that described comparison Above-mentioned registration is done difference and takes absolute value by unit, i.e. takes | P21-P31|, | P21-P32| and | P32-P31|, after calculating result, By in this absolute difference result of calculation transmission to described logic and control unit;
Described logic and control unit internal memory contain standard value δ, and above-mentioned registration does difference the numerical value taken absolute value and mark Quasi-value δ contrasts, if three is all higher than standard value δ, then concludes the position of detection in a certain Smoke Detection unit of above-mentioned judgement The smokescope at the place of putting exceeds standard really.
The multifunctional fire-fighting emergency set with redundancy determination the most according to claim 1 and 2, it is characterised in that described The time interval Δ t (1) according to the following equation of n the sampled point selected in signal processing unit each cycle calculates,
Δ t = a · s i n ( ω + β ) · L λ
In formula, Δ t represents the time interval of sampled point, and a is correction factor, and its size is determined by sampled point quantity, and ω represents letter Number angular frequency, by Smoke Sensor performance determine, β is initial phase angle, and L represents the time of signal period, and λ represents signal wave The peak value of shape.
The multifunctional fire-fighting emergency set with redundancy determination the most according to claim 3, it is characterised in that described signal Processing unit includes a coupling protection circuit, a detecting circuit, a filter circuit, a gain amplifier circuit and A/D change-over circuit, Above-mentioned each module is sequentially connected with, wherein,
Described coupling protection circuit, it is in order to suppress electrical interference, signal after described coupling protection circuit by described detection Circuit;
Described detecting circuit, in order to detect the demand data waveform in signal to be transmitted;
The signal filtering of collection is obtained demand data waveform by described filter circuit;
After the acquired signal of described gain amplifier module is amplified, it is reduced to original waveform.
The multifunctional fire-fighting emergency set with redundancy determination the most according to claim 3, it is characterised in that described action Unit includes a relay circuit, a telecommunication circuit, a buzzer and a LED lamp, wherein,
Described logic and control unit and described relay circuit are connected by described telecommunication circuit;Single in described logic and control Unit judges when somewhere smokescope exceeds standard, and described telecommunication circuit sends a high level signal, and described relay circuit closes, and controls Described buzzer and LED connect electricity, and described buzzer sends warning, and described LED is opened.
The multifunctional fire-fighting emergency set with redundancy determination the most according to claim 3, it is characterised in that described in have The multifunctional fire-fighting emergency set of redundancy determination also includes a power module, it include a power switch circuit, a charging circuit, One discharge circuit and a rechargeable battery, wherein,
Described power module, when smokescope is normal, closes described power switch circuit to described Smoke Detection unit, signal Detector unit and motor unit are powered, and described rechargeable battery is persistently charged by described charging circuit;
When described logic and control unit judge concentration over-standard occur, described power module turns off the power switch circuit, connects Described discharge circuit and buzzer and LED are powered.
The multifunctional fire-fighting emergency set with redundancy determination the most according to claim 4, it is characterised in that described amplification Gain module by the module loading of all collections to same magnitude of voltage.
The multifunctional fire-fighting emergency set with redundancy determination the most according to claim 2, it is characterised in that described coincidence Degree threshold value P0Value is 0.95, and described standard value δ value is 0.05.
CN201310243942.8A 2013-06-20 2013-06-20 A kind of multifunctional fire-fighting emergency set with redundancy determination Expired - Fee Related CN103337126B (en)

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