CN110349392A - Fire alarm installation and method - Google Patents
Fire alarm installation and method Download PDFInfo
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- CN110349392A CN110349392A CN201910538185.4A CN201910538185A CN110349392A CN 110349392 A CN110349392 A CN 110349392A CN 201910538185 A CN201910538185 A CN 201910538185A CN 110349392 A CN110349392 A CN 110349392A
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- 238000009434 installation Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000779 smoke Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 4
- 235000019504 cigarettes Nutrition 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
- G08B29/188—Data fusion; cooperative systems, e.g. voting among different detectors
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire Alarms (AREA)
Abstract
The present invention relates to ocean platforms to monitor control field, the invention discloses a kind of fire alarm installation and methods, this method comprises: obtaining four groups of physical signals by four groups of sensor modules, every group of sensor module includes at least one sensor, every kind of sensor exports a kind of electric signal, and the sensor that each group sensor module includes is identical；It is received with four groups of definite value comparison modules and judges electric signal whether more than the correspondence threshold value of definite value comparison module setting, if so, direct current high level signal is exported, if it is not, then exporting direct current low level signal；The multiple direct current high level signals or direct current low level signal of the output of four groups of definite value comparison modules are received with logic processing module, the direct current high level signal of same type sensor generation is judged whether in two or more, if so, output alarm signal, if it is not, not exporting alarm signal then.The problem of it is low that the present invention efficiently solves fire-alarm reliability, high failure rate.
Description
Technical field
The present invention relates to ocean platforms to monitor control field, and in particular to fire alarm installation and method.
Background technique
Fire automatic alarm device is people in order to which fire is notified in early detection, and is adopted an effective measure in time, control and
It stamps out a fire, and is arranged between floors or a kind of fire fighting device in other places, be the strong work that people struggle with fire
Tool.
Currently, fire-alarm is widely used in ocean platform field, fire is found early for the operations staff of ocean platform
Calamity protects the safety of life and property of ocean platform to play an important role to take effective fire suppression measures in time.
Relative to land, the inclination of ocean platform is waved, shock and vibration, is jolted, salt fog, mould, the environment item such as mist of oil
Part is relatively severe.Existing fire-alarm generallys use single channel form, and reliability is lower, and failure rate is higher, false alarm
Probability and to refuse to submit alarm probability higher, it is difficult to adapt to the long-time isolated power grid of ocean platform.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of fire alarm installation and method,
It is low that existing fire-alarm reliability can be efficiently solved, the problem of high failure rate.
To achieve the above objectives, the technical solution adopted by the present invention is that:
On the one hand, the present invention provides a kind of fire alarm installation, and the fire alarm installation includes:
Four groups of sensor modules, every group of sensor module include at least one sensor, and every kind of sensor is for exporting
A kind of electric signal, and the sensor that each group sensor module includes is identical；
Four groups of definite value comparison modules, every group of definite value comparison module is connect with sensor module described in one group respectively, for connecing
It receives and judges the electric signal whether more than the correspondence threshold value of definite value comparison module setting, if so, output direct current is high
Level signal, if it is not, then exporting direct current low level signal；
At least one set of logic processing module, every group of equal logic processing module are connect with definite value comparison module described in four groups,
For the multiple direct current high level signals or direct current low level signal of the output of definite value comparison module described in receiving four groups, judge identical
Whether the direct current high level signal that type sensor generates is in two or more, if so, alarm signal is exported, if it is not, then not defeated
Alarm signal out.
Based on the above technical solution, by signal between every group of sensor module and the definite value comparison module
Module connection is managed, the signal processing module is used to receive and process the electric signal of the sensor module to form standard letter
Number, the definite value comparison module receive and judge the electric signal whether the definite value comparison module setting correspondence threshold value with
On.
Based on the above technical solution, the fire alarm installation further includes alarm module, at the logic
Module connection is managed, for receiving alarm signal and implementing alarm measure.
Based on the above technical solution, the alarm module includes:
Alarm lamp, the light for being used to issue different frequency according to the alarm signal that different types of sensor generates dodge
It is bright；
Buzzer is used to issue the buzzer of different frequency according to the alarm signal that different types of sensor generates.
Based on the above technical solution, every group of sensor module includes sense smoke sensor, photosensitive sensor and temperature-sensitive
Sensor.
Based on the above technical solution, the sense smoke sensor is ion ionisation chamber sense smoke sensor, temperature-sensitive sensing
Device is heat-sensitive semiconductive resistance sensor, and photosensitive sensor is ultraviolet flame sensor.
Based on the above technical solution, the fire alarm installation includes four groups of logic processing modules, the alarm
Module is all connected with four groups of logic processing modules.
On the other hand, the present invention also provides a kind of fire alarm methods, comprising:
Four groups of physical signals are obtained by four groups of sensor modules, every group of sensor module includes at least one sensing
Device, every kind of sensor exports a kind of electric signal, and the sensor that each group sensor module includes is identical；
Received with four groups of definite value comparison modules and judge electric signal whether definite value comparison module setting correspondence threshold value with
On, if so, output direct current high level signal, if it is not, then exporting direct current low level signal；
The multiple direct current high level signals or the low electricity of direct current of the output of four groups of definite value comparison modules are received with logic processing module
Ordinary mail number judges the direct current high level signal of same type sensor generation whether in two or more, if so, output alarm signal
Number, if it is not, not exporting alarm signal then.
Based on the above technical solution, it after obtaining four groups of electric signals, by signal processing module amplification, filters, whole
Shape is converted to standard signal, and the definite value comparison module receives and judges whether the electric signal sets in the definite value comparison module
It is more than the correspondence threshold value set.
Based on the above technical solution, the alarm signal generated by different types of sensor carries out not similar shape
The alarm measure of formula, the alarm measure include at least one in the light flash of different frequency and the buzzer of different frequency
Kind.
Compared with the prior art, the advantages of the present invention are as follows: by the signal processing mode of multisensor multichannel, and adopt
Two logical process mode is selected with four, the reliability of fire-alarm is improved, reduces failure rate and rate of false alarm.
Detailed description of the invention
Fig. 1 is that the principal diagram of fire-alarm in the embodiment of the present invention is intended to.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and embodiments.
Fig. 1 is that the principal diagram of fire-alarm in the embodiment of the present invention is intended to.As shown in Figure 1, the embodiment of the present invention mentions
For a kind of fire alarm installation, fire alarm installation includes:
Four groups of sensor modules, every group of sensor module include at least one sensor, and every kind of sensor is for exporting
A kind of electric signal, and the sensor that each group sensor module includes is identical；
Four groups of definite value comparison modules, every group of definite value comparison module are connect with one group of sensor module respectively, for receiving simultaneously
Judge electric signal whether definite value comparison module setting correspondence threshold value more than, if so, output direct current high level signal, if
It is no, then export direct current low level signal；
At least one set of logic processing module, every group of equal logic processing module connect with four groups of definite value comparison modules, are used for
The multiple direct current high level signals or direct current low level signal for receiving the output of four groups of definite value comparison modules judge that same type senses
Whether the direct current high level signal that device generates is in two or more, if so, alarm signal is exported, if it is not, not exporting alarm signal then
Number.
The fire alarm installation when in use, obtains physical signal by four groups of sensor modules respectively and exports telecommunications
Number, every group of sensor module includes at least a kind of sensor, can obtain at least one physical signal, and sensor module is by electric signal
Transmission given value comparison module is compared, and judges whether electric signal is greater than threshold value, if so, output direct current high level signal,
If it is not, then exporting direct current low level signal.Logic processing module receives level signal, when the same type sensing for having 2 groups or more
When the direct current high level signal that device generates, alarm signal is exported, alarm signal is not otherwise exported.Fire alarm can be improved in this way
Device reliability, makes that its failure rate is low, false alarm probability is low, refuses to submit that alarm probability is low, improves the automatically-monitored water of ocean platform
It is flat, facilitate ocean platform isolated operation.
In the present embodiment, logic processing module is with DSP (Digital Signal Processor, at digital signal
Manage device) be core embedded system.The DC level signal and the other three that DSP sends this channel definite value comparison module are logical
The DC level signal that road is sent carries out four and selects two logical process.When in corresponding four DC level signals of some parameter
When two or more are high level, DSP exports direct current high level to alarm module, as alarm signal.Conversely, DSP to
Alarm module exports direct current low level signal.
Preferably, it is connected between every group of sensor module and definite value comparison module by signal processing module, signal processing
Module is used to receive and process the electric signal of sensor module to form standard signal, and definite value comparison module receives and judges telecommunications
Number whether definite value comparison module setting correspondence threshold value more than.
In the present embodiment, signal processing module is with MCU (Microcontroller Unit, micro-control unit) for core
The embedded system of the heart.MCU receives the signals such as resistance, the voltage that temperature sensing sensor, sense smoke sensor, photosensitive sensor transmit,
By amplification, filtering, shaping, (4~20) mA current signal of standard is converted to, and is transmitted to definite value comparison module.Because existing
The distance of modules may have a certain distance, connect electric wire resistance it is larger when, if with voltage source signal teletransmission, by
In wire resistance and the partial pressure of instrument input resistance is received, biggish error will be generated, and uses constant current supply signal as teletransmission,
As long as branch does not occur in transmission circuit, the electric current in circuit would not change with electric wire length, to ensure that the essence of transmission
Degree.
Definite value comparison module is with FPGA (Field Programmable Gate Array, field programmable gate battle array
Column) be core embedded system.(4~20) mA current signal of the standard of FPGA reception signal processing module transmission, and with
The corresponding threshold value of signal is compared.When the current signal of input is than or equal to corresponding threshold value, FPGA is to patrolling
It collects processing module and exports direct current high level signal.Conversely, when input current signal be lower than corresponding threshold value when, FPGA to
Logic processing module exports direct current low level signal.
Preferably, fire alarm installation further includes alarm module, is connect with logic processing module, for receiving alarm signal
Number and implement alarm measure.Alarm module can be implemented the alarm signal received, and the operation such as early warning, Ke Yiti are issued
Awake staff timely has found fire behavior, to carry out effective counter-measure.
Preferably, alarm module includes:
Alarm lamp, the light for being used to issue different frequency according to the alarm signal that different types of sensor generates dodge
It is bright；
Buzzer is used to issue the buzzer of different frequency according to the alarm signal that different types of sensor generates.
Rescue personnel can be preliminary from different types of warning note judgement fire behavior degree, to make different
Counter-measure avoids having no to understand due to the degree to fire behavior to cause further to lose.Such as under normal circumstances, first by
Cigarette propagated sensation sensor judges fire behavior, and at this moment fire behavior is also in the elementary step, and the frequency of alarm lamp flashing is low, the buzzer of buzzer
Frequency it is low, with the intensification of fire behavior degree, the frequency of alarm lamp and buzzer can be higher and higher, to prompt rescue personnel.
Preferably, every group of sensor module includes sense smoke sensor, photosensitive sensor and temperature sensing sensor.Feel cigarette sensing
Device, photosensitive sensor and temperature sensing sensor monitor the gas, optical signal, temperature of environment respectively, and are converted by sensor module
Electric signal.Heat-sensitive semiconductive resistance sensor can be used in temperature sensing sensor.Ion ionisation chamber sense cigarette can be used in sense smoke sensor
Sensor.Ultraviolet flame sensor can be used in photosensitive sensor.Using multiple sensors, the reliable of fire-alarm can be improved
Property, makes that its failure rate is low, false alarm probability is low, it is low to refuse to submit alarm probability.And signal that can be different by each sensor, hair
The warning note of different frequency out.Preliminary fire behavior information can be provided for rescue personnel.
Preferably, fire alarm installation includes four groups of logic processing modules, and alarm module and four groups of logic processing modules are equal
Connection.Whole device can be caused to fail to avoid a logic processing module failure using four groups of logic processing modules, Ke Yiti
High entire fire-alarm has reliability.
On the other hand, the present invention provides a kind of fire alarm method, comprising:
Obtain four groups of electric signals, every group of electric signal includes the electric signal that at least one sensor obtains, and each group sensor
Type it is identical；
Judge respectively electric signal whether more than the threshold value being correspondingly arranged, if so, output direct current high level signal, if
It is no, then export direct current low level signal；
Handle four groups of level signals, judge same type sensor generate direct current high level signal whether two with
On, if so, output alarm signal, if it is not, not exporting alarm signal then.
The reliability that fire-alarm can be improved in this way, makes that its failure rate is low, false alarm probability is low, refuses to submit alarm probability
It is low, the automatically-monitored level of ocean platform is improved, ocean platform isolated operation is facilitated.
Preferably, after obtaining four groups of electric signals, standard signal is converted to by amplification, filtering, shaping, respectively judgment criteria
Whether signal is more than the threshold value being correspondingly arranged.It is transmitted using constant current supply signal, as long as branch, circuit does not occur in transmission circuit
In electric current would not change with electric wire length, to ensure that the precision of transmission, entire fire alarm utensil can be improved
There is reliability.
Preferably, the alarm signal generated by different types of sensor carries out various forms of alarm measures, alarm
Measure includes at least one of light flash and buzzer of different frequency of different frequency.It can be by each sensor not
Same signal, issues the warning note of different frequency.Preliminary fire behavior information can be provided for rescue personnel.
To sum up, the fire alarm installation and method cross the signal processing mode of multisensor multichannel, and select two using four
Logical process mode, fire alarm reliability can be improved, make that fire alarm installation failure rate is low, false alarm probability is low, refuses
Alarm probabilities are low, improve the automatically-monitored level of ocean platform, facilitate ocean platform isolated operation.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention
Within the scope of.The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. a kind of fire alarm installation, which is characterized in that the fire alarm installation includes:
Four groups of sensor modules, every group of sensor module include at least one sensor, and every kind of sensor is for exporting one kind
Electric signal, and the sensor that each group sensor module includes is identical；
Four groups of definite value comparison modules, every group of definite value comparison module are connect with sensor module described in one group respectively, for receiving simultaneously
The electric signal is judged whether more than the correspondence threshold value of definite value comparison module setting, if so, output direct current high level
Signal, if it is not, then exporting direct current low level signal；
At least one set of logic processing module, every group of equal logic processing module connect with definite value comparison module described in four groups, are used for
The multiple direct current high level signals or direct current low level signal of the output of definite value comparison module described in receiving four groups, judge same type
Whether the direct current high level signal that sensor generates is in two or more, if so, alarm signal is exported, if it is not, not exporting report then
Alert signal.
2. fire alarm installation as described in claim 1, it is characterised in that: every group of sensor module mould compared with the definite value
It is connected between block by signal processing module, the signal processing module is used to receive and process the telecommunications of the sensor module
Number to form standard signal, the definite value comparison module receives and judges whether the electric signal sets in the definite value comparison module
It is more than the correspondence threshold value set.
3. fire alarm installation as described in claim 1, it is characterised in that: the fire alarm installation further includes alarm mould
Block is connect with the logic processing module, for receiving alarm signal and implementing alarm measure.
4. fire alarm installation as claimed in claim 3, it is characterised in that: the alarm module includes:
Alarm lamp is used to issue the light flash of different frequency according to the alarm signal that different types of sensor generates；
Buzzer is used to issue the buzzer of different frequency according to the alarm signal that different types of sensor generates.
5. fire alarm installation as claimed in claim 3, it is characterised in that: the fire alarm installation includes at four groups of logics
Module is managed, the alarm module is all connected with four groups of logic processing modules.
6. fire alarm installation as described in claim 1, it is characterised in that: every group of sensor module include sense smoke sensor,
Photosensitive sensor and temperature sensing sensor.
7. fire alarm installation as claimed in claim 6, it is characterised in that: the sense smoke sensor is ion ionisation chamber sense cigarette
Sensor, temperature sensing sensor are heat-sensitive semiconductive resistance sensor, and photosensitive sensor is ultraviolet flame sensor.
8. a kind of fire alarm method implemented using fire alarm installation as described in claim 1, which is characterized in that packet
It includes:
Four groups of physical signals are obtained by four groups of sensor modules, every group of sensor module includes at least one sensor, often
Kind sensor exports a kind of electric signal, and the sensor that each group sensor module includes is identical；
With four groups of definite value comparison modules receive and judge electric signal whether definite value comparison module setting correspondence threshold value more than, if
It is then to export direct current high level signal, if it is not, then exporting direct current low level signal；
Multiple direct current high level signals or direct current low level letter of four groups of definite value comparison module outputs are received with logic processing module
Number, whether judge direct current high level signal that same type sensor generates in two or more, if so, output alarm signal,
If it is not, not exporting alarm signal then.
9. fire alarm method as claimed in claim 8, it is characterised in that: after obtaining four groups of electric signals, pass through signal processing
Module amplification, filtering, shaping are converted to standard signal, and whether the definite value comparison module receives and judge the electric signal in institute
It is more than the correspondence threshold value for stating the setting of definite value comparison module.
10. fire alarm method as claimed in claim 8, which is characterized in that the report generated by different types of sensor
Alert signal, carries out various forms of alarm measures, and the alarm measure includes at least the light flash and different frequencies of different frequency
One of buzzer of rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910538185.4A CN110349392A (en) | 2019-06-20 | 2019-06-20 | Fire alarm installation and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910538185.4A CN110349392A (en) | 2019-06-20 | 2019-06-20 | Fire alarm installation and method |
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| CN110349392A true CN110349392A (en) | 2019-10-18 |
Family
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| CN201910538185.4A Pending CN110349392A (en) | 2019-06-20 | 2019-06-20 | Fire alarm installation and method |
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Cited By (1)
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Application publication date: 20191018 |