CN103337126A - Multifunctional fire fighting emergency device with redundancy judgment function - Google Patents
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Abstract
The invention relates to a multifunctional fire fighting emergency device with a redundancy judgment function, which is a treble redundancy judgment device. The device provided by the invention comprises three smog detecting units, signal processing units corresponding to the three smog detecting units, and an action unit, as well as a comparing unit and a logic and control unit, wherein the comparing unit calculates the signal superposing degree of the second signal processing unit over the first signal processing unit, that of the third signal processing unit over the first signal processing unit, and that of the third signal processing unit over the second signal processing unit, and then sends the results to the logic and control unit where threshold determination is carried out; if the superposing degree is smaller than the threshold, that the smog concentration of the positions detected by two smog detecting units exceeds standard is detected. The emergency device adopts treble redundancy judgment, and as a result, the result is more accurate, and alarming measures can be promptly taken while misjudgment is avoided.
Description
Technical field
The present invention relates to a kind of fire-fighting emergent device, relate in particular to a kind of multi-functional fire-fighting emergent device with redundancy determination.
Background technology
Fire-fighting emergent equipment of the prior art is mainly a fire emergency lamp, is provided with testing circuit, treatment circuit and on-off circuit in this lamp, with this lamp setting a certain position in the line, detects airborne inflammable gas or smokescope.
As, Chinese patent " a kind of intelligent radio fire emergency lamp ", application number: 201110385858.0 disclose the wireless fire emergency lamp of a kind of energy, this emergency light module comprises power management module, led light source and battery, the power management module circuit comprises switching power circuit, charging circuit and discharge circuit, communication and control module are used for the information that the discharges and recharges control to lamp module, and handle the information that light fixture is passed back, and by radio-frequency (RF) transceiver and extraneous the mutual of data and signal that carry out; Power management module is used for power management and the signals collecting of lamp interior, and communication control module is passed in the participation that will collect.This lamp is not effectively judged Signal Processing, is difficult to accident is carried out accurately and errorless judgement.
At above-mentioned defective, creator of the present invention provides a kind of more perfect scheme.
Summary of the invention
The object of the present invention is to provide a kind of multi-functional fire-fighting emergent device with redundancy determination, to overcome above-mentioned technological deficiency.
For achieving the above object, the invention provides a kind of multi-functional fire-fighting emergent dress with redundancy determination
Put, it is the redundancy determination device of one or three remainings, and it comprises three Smoke Detection unit and a signal processing unit, a motor unit corresponding with it, also comprises a comparing unit and a logic and control module, wherein,
Described Smoke Detection unit is connected with described signal processing unit, it comprises a smoke transducer, it is arranged on the diverse location on this indoor fire-fighting circuit, and it transfers in the described signal processing unit after detected smog and gas concentration information are changed into electric signal;
Described signal processing unit, it gathers electric current and the voltage signal of connected Smoke Detection unit, when gathering, to signal waveform, every continuous
In the individual cycle, the phase is selected weekly
The sampled point in the individual default moment, per interval time
Once sampling, serial sampling
Inferior; And the voltage signal gathered and current signal transferred in the computing memory module in the phase handle;
Described comparing unit comprises a comparer, it carries out calculation process to electric current and the voltage acquisition signal of storing in all signal processing units, and calculates in every group of electric current and the voltage signal secondary signal processing unit according to the following equation to the registration of first signal processing unit
,
In the formula,
Represent the electric current of first and second signal processing unit and the registration of voltage signal,
With
Represent voltage signal, current signal that described first signal processing unit is gathered respectively,
With
Represent voltage signal, current signal that described secondary signal processing unit is gathered respectively,
The computing of expression mean square deviation,
The expression integral operation;
Described secondary signal processing unit is to the signal registration of first signal processing unit
Calculate according to the following equation;
In the formula,
Expression sampling group number,
The expression sequence number,
Represent that secondary signal processing unit described in every group of signal is to the signal registration of first signal processing unit;
Described comparing unit calculates the secondary signal processing unit to the signal registration of first signal processing unit
, the 3rd signal processing unit is to the signal registration of first signal processing unit
, the 3rd signal processing unit is to the signal registration of secondary signal processing unit
, and transmit it in described logic and the control module;
Described logic and control module are a MCU processor, are stored with a registration threshold value
, described logic and control module are with registration value and the registration threshold value of described calculating gained
Compare, if described registration value is less than threshold value, conclude that then the smokescope of the position of detecting in the two Smoke Detection unit wherein exceeds standard; With the three respectively with the registration threshold value
Compare, can conclude that then the smokescope of the position of detecting in a certain Smoke Detection unit exceeds standard; And send action command to described motor unit.
Further, described comparing unit is done difference with above-mentioned registration and is taken absolute value, and namely gets
,
With
, calculate the result after, this absolute difference result of calculation is transferred in described logic and the control module;
Store a standard value in described logic and the control module
, above-mentioned registration is done difference and the numerical value that takes absolute value and standard value
Compare, if the equal overgauge value of three
, conclude that then the smokescope of the position of detecting in a certain Smoke Detection unit of above-mentioned judgement exceeds standard really.
Further, select in each cycle of described signal processing unit
The time interval of individual sampled point
Calculate according to the following equation,
In the formula,
The time interval of expression sampled point,
Be correction factor, its size determines by sampled point quantity,
The angular frequency of expression signal, by the performance decision of smoke transducer,
Be initial phase angle,
The time of expression signal period,
The peak value of expression signal waveform.
Further, described signal processing unit comprises a coupling holding circuit, a detecting circuit, a filtering circuit, a gain amplifier circuit and A/D change-over circuit, and above-mentioned each module connects in turn, wherein,
Described coupling holding circuit, it is in order to suppressing electrical interference, signal through after the described coupling holding circuit by described detection module;
Described detection module is in order to detect the demand data waveform in the signal to be transmitted;
Described filtering circuit obtains the demand data waveform with the signal filtering of gathering;
After the signal of described gain amplifier module through gathering amplifies, be reduced to original waveform.
Further, described motor unit comprises a relay circuit, a telecommunication circuit, a hummer and a LED light fixture, wherein,
Described logic is connected by described telecommunication circuit with described relay circuit with control module; When described logic and control module judged that the somewhere smokescope exceeds standard, described telecommunication circuit was sent a high level signal, and described relay circuit closure is controlled described hummer and the LED lamp connects electricity, and described hummer sends warning, and described LED lamp is opened.
Further, described multi-functional fire-fighting emergent device with redundancy determination also comprises a power module, and it comprises a power switch circuit, a charging circuit, a discharge circuit and a rechargeable battery, wherein,
Described power module in smokescope just often, closed described power switch circuit to described Smoke Detection unit, the power supply of detecting signal unit and motor unit, described rechargeable battery continues charging by described charging circuit;
When described logic and control module are judged when concentration over-standard occurring, described power module powered-down on-off circuit is connected described discharge circuit and to hummer and the power supply of LED lamp.
Further, described gain amplifier module arrives same magnitude of voltage with the module loading of all collections.
Further, described registration threshold value
Value is 0.95, described standard value
Value is 0.05.
Beneficial effect of the present invention is compared with the prior art: the present invention has the multi-functional fire-fighting emergent device of redundancy determination, adopt the judgment means of three remainings, three positions in the circuit are arranged the Smoke Detection element respectively, gathering signal respectively is sent in the comparing unit, comparing unit carries out redundancy determination to three kinds of signals, calculate the registration of signal in twos, and the registration value is delivered to logic and control module and a threshold value compare; The registration value of per two kinds of signals do that difference takes absolute value and with a threshold decision, confirm to take place to handle behind the position that smokescope exceeds standard; Adopt two kinds of threshold values to judge that respectively the result of judgement is more accurate, can in time take the warning measure, be unlikely to cause erroneous judgement again, and cause confusion; During signals collecting, do not gather signal in real time, select but in the selected cycle, carry out sample point; And when selective sampling point, the closer to the peak value place, the time interval of collection is more short, and the desirable property of sampling is higher; When signal is handled, all signal loading are convenient to carry out redundancy at same voltage judge.
Description of drawings
Fig. 1 has the functional block diagram of the multi-functional fire-fighting emergent device of redundancy determination for the present invention;
Fig. 2 has the functional block diagram of signal processing unit of the multi-functional fire-fighting emergent device of redundancy determination for the present invention;
Fig. 3 has the functional block diagram of power module of signal processing unit of the multi-functional fire-fighting emergent device of redundancy determination for the present invention.
Embodiment
Below in conjunction with accompanying drawing, detailed technology feature of the present invention is further described, in order to more clearly understand the present invention.
See also shown in Figure 1, it has the functional block diagram of the multi-functional fire-fighting emergent device of redundancy determination for the present invention, in the present invention, it is the redundancy determination device of one or three remainings, described fire-fighting emergent device comprises three Smoke Detection unit and a signal processing unit, a power module and a motor unit corresponding with described Smoke Detection unit, also comprise a comparing unit, it is connected with a logic control element, and described motor unit comprises hummer and a high-power LED light fixture.
In the present invention, the output terminal of the first Smoke Detection unit 1 is connected with one first signal processing unit 2, it transfers to described first signal processing unit 2 after detected smog and gas concentration information are changed into electric signal, in the present embodiment, the described first Smoke Detection unit 1 comprises one first smoke transducer, it is arranged on this indoor fire-fighting circuit, detects airborne smokescope in real time, and is surpassing a default concentration value
The time, produce a heavy current and forceful electric power and press signal and transfer in described first signal processing unit 2.
See also shown in Figure 2, it has the functional block diagram of signal processing unit of the multi-functional fire-fighting emergent device of redundancy determination for the present invention, described first signal processing unit 2 comprises a coupling holding circuit 21, one detecting circuit 22, one filtering circuit 23, one gain amplifier circuit 24, one A/D change-over circuit 25 and one first computing memory module 26, above-mentioned each module connects in turn, wherein, described coupling holding circuit 21, it is in order to suppress electrical interference, the described coupling holding circuit of signal process 21 backs are by described detection module 22, in order to detect the demand data waveform in the signal to be transmitted, obtain the demand data waveform through described filtering circuit 23 again, after described gain amplifier module 24 is amplified, be reduced to original waveform; Again through the voltage signal of described A/D change-over circuit 25 with collection
And current signal
Transfer in the described first computing memory module 26 and handle.
In the present invention, after described first signal processing unit 2 is gathered the voltage and current signal in the described first Smoke Detection unit 1 earlier, calculate through handling again.When 2 pairs of electric currents of described first signal processing unit and voltage signal are gathered, take the mode of random sampling to carry out, to signal waveform, every continuous
In the individual cycle, the phase is selected weekly
The sampled point in the individual default moment, per interval time
Once sampling, serial sampling
Inferior; In order to guarantee can in each cycle, selecting with reference to property and accuracy of sampled data
The time interval of individual sampled point
Calculate (1) according to the following equation,
（1）
In the formula,
The time interval of expression sampled point,
Be correction factor, its size determines by sampled point quantity,
The angular frequency of expression signal, by the performance decision of smoke transducer,
Be initial phase angle,
The time of expression signal period,
The peak value of expression signal waveform.
Through above-mentioned formula (1) sampling, when signal amplitude was more big, it was more intensive to sample, sampled data can be more strong with reference to property; Sampling at this signal processing unit is not real-time sampling, but to signal data according to pre-conditioned sampling, make follow-up signal deal with data amount reduce, alleviate numerous and diverse computing that data are handled.
The described first computing memory module 26 is with above-mentioned collection
The group voltage signal
And current signal
, put in order and form a voltage and current matrix, and be stored in the phase.
In the present invention, the output terminal of the second Smoke Detection unit 11 is connected with a secondary signal processing unit 12, described the 3rd smog test cell 111, secondary signal processing unit 12, the 3rd signal processing unit 121 are gathered signal according to the algorithm identical with described first signal processing unit 2, obtain voltage signal
And current signal
, put in order and form a voltage and current matrix, and be stored in the one second computing memory module; And described gain amplifier module is carried in same numerical value with the on-load voltage in all signal processing units, in order to compare.
The described second Smoke Detection unit 11 and a Smoke Detection unit 1 are arranged on the diverse location in the same circuit, and it detects the smokescope at place, position respectively in real time; In the present invention, be provided with three Smoke Detection unit and the signal processing unit corresponding with it, carry out data acquisition three positions simultaneously, the signal of each station acquisition carries out redundancy determination.
Comprise a comparer in the described comparing unit 3, it carries out calculation process to electric current and the voltage acquisition signal of storing in all signal processing units, calculates a registration respectively
And transmit it in the described logic control element 10, now describe with first signal processing unit 1 and secondary signal processing unit 12, it transfers to the voltage and current signal of gathering in the described comparing unit 3 respectively, and (2) calculate the registration of electric current and voltage signal in first and second signal processing unit according to the following equation
,
In the formula,
The registration of representing first and second group electric current and voltage signal,
With
Represent voltage signal, current signal that described first signal processing unit is gathered respectively,
With
Represent voltage signal, current signal that described secondary signal processing unit is gathered respectively,
The computing of expression mean square deviation,
The expression integral operation;
The signal registration of 12 pairs of first signal processing units 1 of described secondary signal processing unit
Calculate (3) according to the following equation;
In the formula,
Expression sampling group number,
The expression sequence number,
Represent that secondary signal processing unit described in every group of signal is to the signal registration of first signal processing unit.
In like manner, the registration of described first and third signal processing unit
Calculate by following formula (4),
（4）
In the formula,
Represent the electric current of first and third signal processing unit and the registration of voltage signal,
With
Represent voltage signal, current signal that described first signal processing unit is gathered respectively,
With
Represent voltage signal, current signal that described signal processing unit is gathered respectively,
The computing of expression mean square deviation,
The expression integral operation.
In like manner, the registration of described second and third signal processing unit
Calculate by following formula (5),
In the formula,
Represent the electric current of first and third signal processing unit and the registration of voltage signal,
With
Represent voltage signal, current signal that described first signal processing unit is gathered respectively,
With
Represent voltage signal, current signal that described signal processing unit is gathered respectively,
The computing of expression mean square deviation,
The expression integral operation.
In the present embodiment, the Smoke Detection unit judges with three remainings is that example describes.
Described comparing unit 3 carries out registration to three Smoke Detection unit respectively and calculates, and namely calculates the secondary signal processing unit to the signal registration of first signal processing unit
, the 3rd processing unit is to the signal registration of first signal processing unit
, the 3rd processing unit is to the signal registration of secondary signal processing unit
Described comparing unit 3 is done difference with above-mentioned registration and is taken absolute value, and namely gets
,
With
, calculate the result after, signal registration and absolute difference result of calculation are transferred in described logic and the control module 10.
Described logic and control module 10 are a MCU processor or a PLC, and it is integrated in the switch board, are stored with a registration threshold value
With a standard value
, described logic and control module 10 are with registration value and the registration threshold value of described calculating gained
Compare, if described registration value is less than threshold value, conclude that then the smokescope of the position of detecting in the two Smoke Detection unit wherein exceeds standard; With the three respectively with the registration threshold value
Compare, can conclude that then the smokescope of the position of detecting in a certain Smoke Detection unit exceeds standard.
Further, above-mentioned registration is done difference and the numerical value that takes absolute value and standard value
Compare, if the equal overgauge value of three
, conclude that then the smokescope of the position of detecting in a certain Smoke Detection unit of above-mentioned judgement exceeds standard really.
The smokescope of the position of detecting in the first Smoke Detection unit exceeds standard as described, then
With
All less than
, and
,
With
The equal overgauge value of value
In the present embodiment, described registration threshold value
Value is 0.95, described standard value
Value is 0.05.
Among the present invention, adopt two kinds of threshold values to carry out redundancy determination respectively, the result of judgement is more accurate.
Described logic and control module 10 detect certain smokescope and exceed standard, then send instruction to corresponding motor unit, in the present invention, first motor unit 5 comprises a relay circuit and a telecommunication circuit, and described logic is connected by described telecommunication circuit with described relay circuit with control module 10.When described logic and control module 10 judged that the somewhere smokescopes exceed standard, described telecommunication circuit was sent a high level signal, and described relay circuit closure is controlled described hummer and the LED lamp connects electricity, and described hummer sends warning, and described LED lamp is opened.
See also shown in Figure 3, it has the functional block diagram of power module of signal processing unit of the multi-functional fire-fighting emergent device of redundancy determination for the present invention, in the present invention, power module provides electric energy when the LED lamp is opened, first power module 4 comprises a power switch circuit 41, one charging circuit 42, one discharge circuit 43 and a rechargeable battery 44, described power module in smokescope just often, closed described power switch circuit is to the described first Smoke Detection unit 1, first detecting signal unit 2 and 5 power supplies of first motor unit, described rechargeable battery 44 continues charging by described charging circuit 43; When described logic and control module 10 judged when concentration over-standard occurring, described power module powered-down on-off circuit 41 is then connected described discharge circuit 43 and to hummer and the power supply of LED lamp.
More than for referencial use with preferred embodiment, technical characterictic of the present invention and effect have been carried out brief description, the present invention is not limited to above-mentioned embodiment, without departing from the spirit and scope of the present invention, those skilled in the art can do various changes and modification.
Claims (8)
1. multi-functional fire-fighting emergent device with redundancy determination, it is characterized in that it is the redundancy determination device of one or three remainings, it comprises three Smoke Detection unit and a signal processing unit, a motor unit corresponding with it, also comprises a comparing unit and a logic and control module, wherein
Described Smoke Detection unit is connected with described signal processing unit, it comprises a smoke transducer, it is arranged on the diverse location on this indoor fire-fighting circuit, and it transfers in the described signal processing unit after detected smog and gas concentration information are changed into electric signal;
Described signal processing unit, it gathers electric current and the voltage signal of connected Smoke Detection unit, when gathering, to signal waveform, every continuous
In the individual cycle, the phase is selected weekly
The sampled point in the individual default moment, per interval time
Once sampling, serial sampling
Inferior; And the voltage signal gathered and current signal transferred in the computing memory module in the phase handle;
Described comparing unit comprises a comparer, it carries out calculation process to electric current and the voltage acquisition signal of storing in all signal processing units, and calculates in every group of electric current and the voltage signal secondary signal processing unit according to the following equation to the registration of first signal processing unit
,
In the formula,
Represent the electric current of first and second signal processing unit and the registration of voltage signal,
With
Represent voltage signal, current signal that described first signal processing unit is gathered respectively,
With
Represent voltage signal, current signal that described secondary signal processing unit is gathered respectively,
The computing of expression mean square deviation,
The expression integral operation;
Described secondary signal processing unit is to the signal registration of first signal processing unit
Calculate according to the following equation;
In the formula,
Expression sampling group number,
The expression sequence number,
Represent that secondary signal processing unit described in every group of signal is to the signal registration of first signal processing unit;
Described comparing unit calculates the secondary signal processing unit to the signal registration of first signal processing unit
, the 3rd signal processing unit is to the signal registration of first signal processing unit
, the 3rd signal processing unit is to the signal registration of secondary signal processing unit
, and transmit it in described logic and the control module;
Described logic and control module are a MCU processor, are stored with a registration threshold value
, described logic and control module are with registration value and the registration threshold value of described calculating gained
Compare, if described registration value is less than threshold value, conclude that then the smokescope of the position of detecting in the two Smoke Detection unit wherein exceeds standard; With the three respectively with the registration threshold value
Compare, can conclude that then the smokescope of the position of detecting in a certain Smoke Detection unit exceeds standard; And send action command to described motor unit.
2. a kind of multi-functional fire-fighting emergent device with redundancy determination according to claim 1 is characterized in that described comparing unit does difference with above-mentioned registration and take absolute value, and namely gets
,
With
, calculate the result after, this absolute difference result of calculation is transferred in described logic and the control module;
Store a standard value in described logic and the control module
, above-mentioned registration is done difference and the numerical value that takes absolute value and standard value
Compare, if the equal overgauge value of three
, conclude that then the smokescope of the position of detecting in a certain Smoke Detection unit of above-mentioned judgement exceeds standard really.
3. a kind of multi-functional fire-fighting emergent device with redundancy determination according to claim 1 and 2 is characterized in that selecting in each cycle of described signal processing unit
The time interval of individual sampled point
Calculate according to the following equation,
In the formula,
The time interval of expression sampled point,
Be correction factor, its size determines by sampled point quantity,
The angular frequency of expression signal, by the performance decision of smoke transducer,
Be initial phase angle,
The time of expression signal period,
The peak value of expression signal waveform.
4. a kind of multi-functional fire-fighting emergent device with redundancy determination according to claim 3; it is characterized in that described signal processing unit comprises a coupling holding circuit, a detecting circuit, a filtering circuit, a gain amplifier circuit and A/D change-over circuit; above-mentioned each module connects in turn, wherein
Described coupling holding circuit, it is in order to suppressing electrical interference, signal through after the described coupling holding circuit by described detection module;
Described detection module is in order to detect the demand data waveform in the signal to be transmitted;
Described filtering circuit obtains the demand data waveform with the signal filtering of gathering;
After the signal of described gain amplifier module through gathering amplifies, be reduced to original waveform.
5. a kind of multi-functional fire-fighting emergent device with redundancy determination according to claim 3 is characterized in that described motor unit comprises a relay circuit, a telecommunication circuit, a hummer and a LED light fixture, wherein,
Described logic is connected by described telecommunication circuit with described relay circuit with control module; When described logic and control module judged that the somewhere smokescope exceeds standard, described telecommunication circuit was sent a high level signal, and described relay circuit closure is controlled described hummer and the LED lamp connects electricity, and described hummer sends warning, and described LED lamp is opened.
6. a kind of multi-functional fire-fighting emergent device with redundancy determination according to claim 3, it is characterized in that described multi-functional fire-fighting emergent device with redundancy determination also comprises a power module, it comprises a power switch circuit, a charging circuit, a discharge circuit and a rechargeable battery, wherein:
Described power module in smokescope just often, closed described power switch circuit to described Smoke Detection unit, the power supply of detecting signal unit and motor unit, described rechargeable battery continues charging by described charging circuit;
When described logic and control module are judged when concentration over-standard occurring, described power module powered-down on-off circuit is connected described discharge circuit and to hummer and the power supply of LED lamp.
7. a kind of multi-functional fire-fighting emergent device with redundancy determination according to claim 4 is characterized in that described gain amplifier module arrives same magnitude of voltage with the module loading of all collections.
8. a kind of multi-functional fire-fighting emergent device with redundancy determination according to claim 2 is characterized in that described registration threshold value
Value is 0.95, described standard value
Value is 0.05.
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