CN106205012A - A kind of three bellows pneumatic type fire-detecting system alarm logic design methods - Google Patents
A kind of three bellows pneumatic type fire-detecting system alarm logic design methods Download PDFInfo
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- CN106205012A CN106205012A CN201510220670.9A CN201510220670A CN106205012A CN 106205012 A CN106205012 A CN 106205012A CN 201510220670 A CN201510220670 A CN 201510220670A CN 106205012 A CN106205012 A CN 106205012A
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Abstract
The invention belongs to a kind of fire-detecting system alarm logic design method, particularly relate to a kind of alarm logical designing method for airplane engine cabin fire alarm detecting system being applicable to three bellows pneumatic type fire detectors.Fireproofing controller carries out logical judgment after reading the state of double loop fire detector according to the time interval of 100～1000ms, then will determine that result gives warning system.For three bellows pneumatic type fire detectors, arrange and combine the alarm logic of setting by double loop fire detector, it is possible to realize can reducing system while reducing system false alarm rate and fail to report.
Description
Technical field
The invention belongs to a kind of fire-detecting system alarm logic design method, particularly relate to one
It is applicable to the aircraft engine nacelle fire-detecting system alarm of three bellows pneumatic type fire detectors
Logic design method.
Background technology
Aircraft engine nacelle in electromotor works probably due to parts heavy wear, fuel leakage,
There is the condition of a fire in the reason such as electrically catch fire；If controlling not in time, flight safety may be jeopardized, draw
Send out catastrophic effect.
The function of aircraft engine nacelle fire-detecting system is that detection occurs in enging cabin
The condition of a fire, and notify crew in time.Aircraft engine nacelle fire-detecting system is mainly by fire alarm
Detector, fireproofing controller, warning system three part form.
Present generation aircraft mostly uses reliability height, maintainability good and easily realizes self detection merit
The pneumatic type fire detector of energy, is looped around inside enging cabin body surface or flame range and detects
Catching fire or overheated in enging cabin.
Three bellows pneumatic type fire detectors can distinguish fire alarm and superheat state, is currently advanced
Aircraft engine nacelle fire detector.The most both at home and abroad about the announcement of pneumatic type fire detector
Alert logic is both for double bellows fire detector design, visits for three bellows pneumatic type fire alarms
Surveying device, the design to fire alarm alarm logic that increases of its outputting alarm state brings difficulty.
Summary of the invention
The purpose of the present invention is to propose to one can to drop while reducing system false alarm rate
The alarm logical designing method for airplane engine cabin fire alarm detecting system of low system.
The technical solution of the present invention is, to pneumatic type fire detection in aircraft engine nacelle
Device carries out double loop layout, and fireproofing controller reads double loop fire alarm according to predetermined sampling frequency and visits
Carry out logical judgment after surveying the state of device, then will determine that result gives warning system, anti-fire control
It is as follows that the one of device processed takes turns workflow:
Step a: fireproofing controller reads A, B according to the time interval of 100～1000ms and returns
The alarm status of road fire detector；
Step b: A loop fire detector is carried out alarm status judgement, is divided into following four kinds
Situation:
(1) if A loop alarm status is fire alarm, then B loop is carried out alarm status judgement:
If B loop state is fire alarm, then being exported fire alarm by fireproofing controller, one takes turns work
Work terminates；If B loop state is overheated, then exported fire alarm by fireproofing controller, one
Wheel end-of-job；If B loop alarm status is fault, then the fault message in B loop is entered
Row record is also isolated, and controller output fire alarm, one takes turns end-of-job.
If B loop alarm status is for being not responding to, then controller timing 15s, and to B loop
State detects: if in 15s, B loop state transfers fire alarm or overheated to, then by fire prevention control
Device output fire alarm, one takes turns end-of-job；If in 15s, B loop state transfers fault to, then
Recording the fault message in B loop and isolate, controller output fire alarm, one takes turns
End-of-job；If B loop state is still for being not responding to after 15s, then it is assumed that A loop report false-alarm,
The fault message in A loop is recorded and isolates, controller do not export fire alarm, overheated,
Fault-signal.
(2) if A loop alarm status is overheated, then B loop is carried out alarm status judgement:
If B loop state is fire alarm, then being exported fire alarm by fireproofing controller, one takes turns work
Work terminates；If B loop state is overheated, then exported heat alarm by fireproofing controller, one
Wheel end-of-job；If B loop alarm status is fault, then the fault message in B loop is entered
Row record is also isolated, and controller output heat alarm, one takes turns end-of-job.
If B loop alarm status is for being not responding to, then controller timing 15s, and to B loop
State detects: if B loop state transfers fire alarm in 15s, then exported by fireproofing controller
Fire alarm, one takes turns end-of-job；If in 15s B loop state transfer to overheated, then by preventing fires
Controller output heat alarm, one takes turns end-of-job；If B loop state transfers fault in 15s,
Then the fault message in B loop recorded and isolate, controller output heat alarm, one
Wheel end-of-job；If B loop state is still for being not responding to after 15s, then it is assumed that A loop report void
Alert, the fault message in A loop is recorded and isolates, controller does not export fire alarm, mistake
Heat, fault-signal.
(3) if A loop alarm status is fault, then B loop is carried out alarm status judgement:
If B loop state is fire alarm, then the fault message in A loop is recorded and isolate,
Controller output fire alarm, one takes turns end-of-job；If B loop state is overheated, then to A
The fault message in loop records and isolates, controller output heat alarm, and one takes turns work knot
Bundle；If B loop state is fault, then the fault message to A, B loop carries out record, control
Device processed output system failure signal, one takes turns end-of-job；If B loop state is for being not responding to,
Then recording the fault message in A loop and isolate, one takes turns end-of-job.
(4) if A loop alarm status is for being not responding to, B loop is carried out alarm status judgement:
If B loop alarm status is fire alarm, then controller timing 15s, and the shape to A loop
State detects: if in 15s, A loop state transfers fire alarm or overheated to, then by fireproofing controller
Output fire alarm, one takes turns end-of-job；If in 15s, A loop state transfers fault to, the most right
The fault message in A loop records and isolates, and controller output fire alarm, one takes turns work
Terminate；If A loop state is still for being not responding to after 15s, then it is assumed that B loop report false-alarm, to B
The fault message in loop records and isolates, and controller does not export fire alarm, overheated, fault letter
Number.
If B loop alarm status is overheated, then controller timing 15s, and the shape to A loop
State detects: if A loop state transfers fire alarm in 15s, then by fireproofing controller output fire
Alert signal, one takes turns end-of-job；If in 15s A loop state transfer to overheated, then by anti-fire control
Device processed output heat alarm, one takes turns end-of-job；If A loop state transfers fault in 15s,
Then the fault message in A loop recorded and isolate, controller output heat alarm, one
Wheel end-of-job；If A loop state is still for being not responding to after 15s, then it is assumed that B loop report void
Alert, the fault message in B loop is recorded and isolates, controller does not export fire alarm, mistake
Heat, fault-signal.
If B loop alarm status is fault, then the fault message in B loop is recorded also
Isolation, one takes turns end-of-job.
If B loop alarm status is for being not responding to, then without fire alarm or overheated in explanation enging cabin
Occurring, working properly, one takes turns end-of-job.
The invention have the benefit that for three bellows pneumatic type fire detectors, by double
The alarm logic of setting is arranged and combined to loop fire detector, it is possible to realizes reducing system void
System can be reduced while alert rate to fail to report.
Detailed description of the invention
Embodiment one
Aircraft enging cabin fire-detecting system mainly includes that fire detector, fire prevention control
Device and warning system three part.Two pneumatic type fire detections are used in aircraft enging cabin
Composition double loop arrangement arranged parallel by device.For ensureing that two-way fire detector works alone,
Two-way detector is the most individually powered.Warning system includes that firewarning light, audio frequency apparatus, video are accused
Alarm device, centralized maintenance system and flight data recor der.
Select fireproofing controller based on Fundamentals of Mono-Chip Computers, read according to the time interval of 100ms
Carry out logical judgment after the state of A, B loop fire detector, then will determine that result is given
Warning system.Fireproofing controller realizes A, B loop fire detector signal by house software
Logical judgment, one wheel workflow example as follows:
Step a: fireproofing controller reads the fire alarm of A, B loop according to the time interval of 100ms
The alarm status of detector；
Step b: A loop fire detector is carried out alarm status judgement, obtains A loop shape
State is fault；B loop fire detector is carried out alarm status judgement, obtains B loop state
For fire alarm；Then the fault message in A loop recorded and isolate, then defeated by fireproofing controller
Going out fire alarm, one takes turns end-of-job.
Embodiment two
Aircraft enging cabin fire-detecting system mainly includes that fire detector, fire prevention control
Device and warning system three part.Two pneumatic type fire detections are used in aircraft enging cabin
Composition double loop arrangement arranged parallel by device.For ensureing that two-way fire detector works alone,
Two-way detector is the most individually powered.Warning system includes that firewarning light, audio frequency apparatus, video are accused
Alarm device, centralized maintenance system and flight data recor der.
Select fireproofing controller based on Fundamentals of Mono-Chip Computers, read according to the time interval of 200ms
Carry out logical judgment after the state of A, B loop fire detector, then will determine that result is given
Warning system.Fireproofing controller realizes A, B loop fire detector signal by house software
Logical judgment, one wheel workflow example as follows:
Step a: fireproofing controller reads the fire alarm of A, B loop according to the time interval of 200ms
The alarm status of detector；
Step b: A loop fire detector is carried out alarm status judgement, obtains A loop shape
State is overheated；B loop fire detector is carried out alarm status judgement, obtains B loop state
For overheated；Then being exported heat alarm by fireproofing controller, one takes turns end-of-job.
Embodiment three
Aircraft enging cabin fire-detecting system mainly includes that fire detector, fire prevention control
Device and warning system three part.Two pneumatic type fire detections are used in aircraft enging cabin
Composition double loop arrangement arranged parallel by device.For ensureing that two-way fire detector works alone,
Two-way detector is the most individually powered.Warning system includes that firewarning light, audio frequency apparatus, video are accused
Alarm device, centralized maintenance system and flight data recor der.
Select fireproofing controller based on Fundamentals of Mono-Chip Computers, read according to the time interval of 500ms
Carry out logical judgment after the state of A, B loop fire detector, then will determine that result is given
Warning system.Fireproofing controller realizes A, B loop fire detector signal by house software
Logical judgment, one wheel workflow example as follows:
Step a: fireproofing controller reads the fire alarm of A, B loop according to the time interval of 500ms
The alarm status of detector；
Step b: A loop fire detector is carried out alarm status judgement, obtains A loop shape
State is fire alarm；B loop fire detector is carried out alarm status judgement, obtains B loop state
For overheated；Fireproofing controller output fire alarm, one takes turns end-of-job.
Embodiment four
Aircraft enging cabin fire-detecting system mainly includes that fire detector, fire prevention control
Device and warning system three part.Two pneumatic type fire detections are used in aircraft enging cabin
Composition double loop arrangement arranged parallel by device.For ensureing that two-way fire detector works alone,
Two-way detector is the most individually powered.Warning system includes that firewarning light, audio frequency apparatus, video are accused
Alarm device, centralized maintenance system and flight data recor der.
Select fireproofing controller based on Fundamentals of Mono-Chip Computers, read according to the time interval of 500ms
Carry out logical judgment after the state of A, B loop fire detector, then will determine that result is given
Warning system.Fireproofing controller realizes A, B loop fire detector signal by house software
Logical judgment, one wheel workflow example as follows:
Step a: fireproofing controller reads the fire alarm of A, B loop according to the time interval of 750ms
The alarm status of detector；
Step b: A loop fire detector is carried out alarm status judgement, obtains A loop shape
State is fire alarm；B loop fire detector is carried out alarm status judgement, obtains B loop state
For being not responding to；Then controller timing 15s, and the state in B loop is detected, after 15s
B loop state is still for being not responding to, then it is assumed that A loop report false-alarm, believes the fault in A loop
Breath records and isolates, and controller does not export fire alarm, overheated or fault-signal, and one takes turns work
Terminate.
Claims (1)
1. three bellows pneumatic type fire-detecting system alarm logic design methods, its feature
For: this fire-detecting system alarm logic design method comprises the following steps:
Step a: fireproofing controller reads A, B according to the time interval of 100～1000ms and returns
The alarm status of road fire detector；
Step b: A loop fire detector is carried out alarm status judgement, is divided into following four kinds
Situation:
(1) if A loop alarm status is fire alarm, then B loop is carried out alarm status judgement:
If B loop state is fire alarm, then being exported fire alarm by fireproofing controller, one takes turns work
Work terminates；If B loop state is overheated, then exported fire alarm by fireproofing controller, one
Wheel end-of-job；If B loop alarm status is fault, then the fault message in B loop is entered
Row record is also isolated, and controller output fire alarm, one takes turns end-of-job；
If B loop alarm status is for being not responding to, then controller timing 15s, and to B loop
State detects: if in 15s, B loop state transfers fire alarm or overheated to, then by fire prevention control
Device output fire alarm, one takes turns end-of-job；If in 15s, B loop state transfers fault to, then
Recording the fault message in B loop and isolate, controller output fire alarm, one takes turns
End-of-job；If B loop state is still for being not responding to after 15s, then it is assumed that A loop report false-alarm,
The fault message in A loop is recorded and isolates, controller do not export fire alarm, overheated,
Fault-signal；
(2) if A loop alarm status is overheated, then B loop is carried out alarm status judgement:
If B loop state is fire alarm, then being exported fire alarm by fireproofing controller, one takes turns work
Work terminates；If B loop state is overheated, then exported heat alarm by fireproofing controller, one
Wheel end-of-job；If B loop alarm status is fault, then the fault message in B loop is entered
Row record is also isolated, and controller output heat alarm, one takes turns end-of-job；
If B loop alarm status is for being not responding to, then controller timing 15s, and to B loop
State detects: if B loop state transfers fire alarm in 15s, then exported by fireproofing controller
Fire alarm, one takes turns end-of-job；If in 15s B loop state transfer to overheated, then by preventing fires
Controller output heat alarm, one takes turns end-of-job；If B loop state transfers fault in 15s,
Then the fault message in B loop recorded and isolate, controller output heat alarm, one
Wheel end-of-job；If B loop state is still for being not responding to after 15s, then it is assumed that A loop report void
Alert, the fault message in A loop is recorded and isolates, controller does not export fire alarm, mistake
Heat, fault-signal；
(3) if A loop alarm status is fault, then B loop is carried out alarm status judgement:
If B loop state is fire alarm, then the fault message in A loop is recorded and isolate,
Controller output fire alarm, one takes turns end-of-job；If B loop state is overheated, then to A
The fault message in loop records and isolates, controller output heat alarm, and one takes turns work knot
Bundle；If B loop state is fault, then the fault message to A, B loop carries out record, control
Device processed output system failure signal, one takes turns end-of-job；If B loop state is for being not responding to,
Then recording the fault message in A loop and isolate, one takes turns end-of-job；
(4) if A loop alarm status is for being not responding to, B loop is carried out alarm status judgement:
If B loop alarm status is fire alarm, then controller timing 15s, and the shape to A loop
State detects: if in 15s, A loop state transfers fire alarm or overheated to, then by fireproofing controller
Output fire alarm, one takes turns end-of-job；If in 15s, A loop state transfers fault to, the most right
The fault message in A loop records and isolates, and controller output fire alarm, one takes turns work
Terminate；If A loop state is still for being not responding to after 15s, then it is assumed that B loop report false-alarm, to B
The fault message in loop records and isolates, and controller does not export fire alarm, overheated, fault letter
Number；
If B loop alarm status is overheated, then controller timing 15s, and the shape to A loop
State detects: if A loop state transfers fire alarm in 15s, then by fireproofing controller output fire
Alert signal, one takes turns end-of-job；If in 15s A loop state transfer to overheated, then by anti-fire control
Device processed output heat alarm, one takes turns end-of-job；If A loop state transfers fault in 15s,
Then the fault message in A loop recorded and isolate, controller output heat alarm, one
Wheel end-of-job；If A loop state is still for being not responding to after 15s, then it is assumed that B loop report void
Alert, the fault message in B loop is recorded and isolates, controller does not export fire alarm, mistake
Heat, fault-signal；
If B loop alarm status is fault, then the fault message in B loop is recorded also
Isolation, one takes turns end-of-job；
If B loop alarm status is for being not responding to, then without fire alarm or overheated in explanation enging cabin
Occurring, working properly, one takes turns end-of-job.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215272A (en) * | 2017-07-05 | 2019-01-15 | 波音公司 | The external fire detection system of aircraft installation |
| CN109345753A (en) * | 2018-11-05 | 2019-02-15 | 中国航空工业集团公司西安飞机设计研究所 | A kind of pneumatic type fire detector and its output state judgment method |
| CN114229018A (en) * | 2021-12-27 | 2022-03-25 | 中国航空工业集团公司西安飞机设计研究所 | Fire alarm detection system for aircraft engine compartment |
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| CN203931069U (en) * | 2014-04-11 | 2014-11-05 | 中国科学技术大学 | A kind of combined fire detector for aircraft hold particular surroundings |
| CN204102277U (en) * | 2014-07-11 | 2015-01-14 | 成都飞亚航空设备应用研究所有限公司 | A kind of fire alarm prior-warning device for multi engines airplane engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102176269A (en) * | 2011-02-15 | 2011-09-07 | 中国航空工业集团公司西安飞机设计研究所 | Alarm logical designing method for airplane engine cabin fire alarm detecting system |
| KR20140037398A (en) * | 2012-09-17 | 2014-03-27 | 주식회사 에어텍시스템 | Communications equipment, file alarm system |
| CN203931069U (en) * | 2014-04-11 | 2014-11-05 | 中国科学技术大学 | A kind of combined fire detector for aircraft hold particular surroundings |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215272A (en) * | 2017-07-05 | 2019-01-15 | 波音公司 | The external fire detection system of aircraft installation |
| CN109345753A (en) * | 2018-11-05 | 2019-02-15 | 中国航空工业集团公司西安飞机设计研究所 | A kind of pneumatic type fire detector and its output state judgment method |
| CN114229018A (en) * | 2021-12-27 | 2022-03-25 | 中国航空工业集团公司西安飞机设计研究所 | Fire alarm detection system for aircraft engine compartment |
| CN114229018B (en) * | 2021-12-27 | 2023-08-22 | 中国航空工业集团公司西安飞机设计研究所 | Aircraft engine compartment fire detection system |
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