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.