CN2403085Y - Linear infrared beam smoke sensing detector - Google Patents
Linear infrared beam smoke sensing detector Download PDFInfo
- Publication number
- CN2403085Y CN2403085Y CN 99257190 CN99257190U CN2403085Y CN 2403085 Y CN2403085 Y CN 2403085Y CN 99257190 CN99257190 CN 99257190 CN 99257190 U CN99257190 U CN 99257190U CN 2403085 Y CN2403085 Y CN 2403085Y
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- China
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- resistance
- pin
- circuit
- triode
- collector
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Fire Alarms (AREA)
Abstract
The utility model discloses a linear infrared beam smoke sensing detector which comprises a transmitter which is composed of a nonpolar conversion, a filtering circuit, a voltage stabilizing circuit and an intermittent oscillation circuit and a receiver which is composed of a power supply nonpolar conversion, a decoding circuit, a code returning circuit, a micro power consumption power circuit, a single chip computer processing circuit, a signal amplification voltage transformation and a receiving tube. The linear infrared beam smoke sensing detector has the advantages of convenient engineering debugging, far detection distance, low power consumption and high nonpolarity of the power supply.
Description
The utility model belongs to a kind of fire detection equipment.
Fire detection equipment is made of transmitter and receiver two parts, mainly finishes fire detection and alarm is carried out in the place of the height of a house, large space, and BURN-THROUGH RANGE can reach 60 meters.In order to make this detecting devices realize normal detecting function, must at first transmitter and receiver be aligned, make receiver receive suitable emission light.At present, the line style infrared beam smoke detector that exists on the market during debugging, is a signal output level of utilizing the multimeter monitoring receiver, by position of detector is regulated, makes it a certain level that reaches fixing, thereby makes detector enter normal operating conditions.Because detection range is far away, and Infrared is not visible, and a pair of detector is debugged successfully, often needs the time of several hrs.
The purpose of this utility model provides and a kind ofly can realize transmitter and receiver position correction easily, the linear infrared beam smoke detector that detecting devices can normally be surveyed in predetermined distance.
The purpose of this utility model is achieved in that the linear infrared beam smoke detector, comprises transmitter and receiver two parts composition, and transmitter is connected to diode D by power pad BUS1 and BUS2
2-D
5No pole-change is by diode D
1Meet triode T
1Collector and resistance R
1, base stage connects stabilivolt ZW
1, emitter passes through resistance R
2Meet power valve L
1Positive pole, L
1Negative pole connect capacitor C respectively
2With triode T
3Collector, by C
5The other end is connecting resistance R respectively
5, RP
2And RP
1, pass through resistance R
3Meet T
2Base stage, collector connects resistance R
4, capacitor C
4Meet T
3Base stage, grounded emitter, T
2Emitter be connected to T
1Emitter and resistance R
2Between; Receiver by bus voltage BUS3-BUS4 through diode D
6-D
9D is passed through in no pole-change again
10Connect resistance R respectively
24An end and triode T
8Collector, base stage connects resistance R respectively
24The other end and stabilivolt ZW4, emitter is by stabilivolt ZW
5Be connected to voltage stabilizing chip U
22 pin of-HT1050, by the voltage of 3 pin output 5V, bus signals passes through resistance R
22Connect triode T
7Base stage, by collector output inversion signal, pass through resistance R again
25, R
26Dividing potential drop enters code translator U
39 pin of-MC145027, the decoding correct signal is by U
3The 11-15 pin output of-MC145027 enters single-chip microcomputer U
4-PIC16C711 is by U
412,13 pin meet red, yellow pilot lamp L respectively
2And L
3, return coded signal by single motor U
4Resistance R is passed through in the 7 pin output of-NC16C711
20Be connected to triode T
6Base stage, pass through resistance R by collector
19Insert on the bus receiving tube L on the signal amplification circuit
4Receive Infrared, by the 7 pin entering signal sample circuits of amplifier USC-TLC2274, through stabilivolt ZW
1, ZW
2Resistance R is passed through in step-down
14, R
5After the dividing potential drop, by triode T
4Emitter connect single-chip microcomputer U
4-NC16C711 treatment circuit.
The utlity model has following characteristics:
1, engineering debug is convenient and simple.Owing to utilized single-chip microcomputer, adopted advanced algorithm, make when the commissioning staff debugs that only by the change color of viewing lamp, just can determine the detector operation state, this provides convenience for engineering debug.
2, power supply is nonpolarity.By the circuit conversion, the power supply of receiver and transmitter buckle in need only being added in arbitrarily on the pin, the wiring of detector is simplified greatly.
3, detection range is far away, and the protection area is big.By the focussing force of convex lens, the detection range of detector is strengthened greatly.The maximum protecting area of a pair of detector is 60 meters * 14 meters, and wherein length is 60 meters, and width is 14 meters, and the protection area of common photoelectric smoke detector only is 60 square metres.
4, detector is low in energy consumption.Because adopted the chip of low-power consumption, as power supply chip HT1050 and single-chip microcomputer PIC16C711, discharge circuit has adopted the time sharing power supply technology in addition, makes the standby current≤1MA of detector.
The utility model embodiment in conjunction with the accompanying drawings further describes:
Fig. 1 shows linear infrared beam smoke detector circuit block diagram.
Fig. 2 is the transmitter circuit figure of detector.
Fig. 3 is the acceptor circuit figure of detector.
Fig. 1 shows the linear infrared beam smoke detector, and it comprises the transmitter and the receiver two parts composition that does not have pole-change, decoding scheme, time decoding circuit, little power consumption power circuit, single-chip microcomputer treatment circuit, signal amplification voltage transformation, receiving tube composition by power supply of no pole-change, filtering, mu balanced circuit, intermittent oscillation circuit composition.
By shown in Figure 2, the power supply of transmitter enters detector by pad BUS1 and BUS2, by connecting diode D
2-D
5Do not have pole-change, pass through diode D again
1, filter capacitor C
1After be connected to triode T
1Collector and resistance R
1An end, T
1Base stage connect stabilivolt ZW1, from T
1The level of emitter output 6V be the intermittent oscillation circuit step-down of back after, be connected to voltage stabilizing chip U
22 pin of-HT1050 are through U
2After the voltage stabilizing, the level from 3 pin output 5V is connected to code translator U
3-MC145027 and single-chip microcomputer U
4The power end of-PIC16C711.
By shown in Figure 3, receiver is by bus voltage BUS3-BUS4 process diode D
6-D
9Behind the electrodeless translation circuit of forming, pass through D again
7Connect resistance R respectively
24An end and triode T
8Collector, base stage connect resistance R respectively
24The other end and stabilivolt ZW
4, emitter is by stabilivolt ZW
5Be connected to voltage stabilizing chip U
22 pin, by the voltage of 3 pin output 5V, by resistance R
22Enter the receipts decoding circuit.Bus signals is through resistance R
22, be connected to T
7Base stage, from T
7Collector output inversion signal, pass through R again
25, R
26After the dividing potential drop, enter code translator U
3The 9th pin of-MC145027.Resistance R
28, R
18Capacitor C
19, C
20Contact pin CZ constitutes code translator U
3The typical peripheral circuit of-MC145027.When address information that code translator receives with after coded message is consistent, code translator U
3The 12-15 pin output command information of-MC145027.Receive 11,12,14,15 pin and the single-chip microcomputer U of decoding circuit by code translator
4-PIC16C711 treatment circuit connects.
Single-chip microcomputer U
46,9,10,11 pin of-PIC16C711 connect respectively receives the decoding circuit processing, is used for judging the command information that code translator produces.Crystal oscillator XTAL, capacitor C
23, C
24Constitute single-chip microcomputer U
4Outside oscillatory circuit.Single-chip microcomputer U
412 pin, 13 pin of-PIC16C711 connect red led L respectively
2With yellow indicator lamp L
3During debugging, when red led is bright, show that received signal too a little less than, when yellow indicator lamp is bright, show that received signal is too strong, when two lamps all extinguish, show that detector debugs successfully; In normal operation, red led is an alarm lamp, and yellow indicator lamp is a malfunction indicator lamp.Single-chip microcomputer U
418 pin of-PIC16C711 are that AD gathers pin, link to each other single-chip microcomputer U with signal sampling circuit
4This voltage signal is carried out discriminatory analysis, and a result who judges is changed into different pulse width signals pass to back decoding circuit.
Return decoding circuit by resistance R
19, R
20Triode T
6Constitute.R
20A pin and single-chip microcomputer U
4The 7th pin link to each other.By single-chip microcomputer U
4The pulse width signal of the 7th pin output, control triode T
6Conducting or end, the detector duty is returned controller by bus.
Signal amplification circuit is by resistance R
6-R
12, R
30, capacitor C
6-C
13, C
25, diode D
11, stabilivolt ZW
5, operational amplifier U
5A, B, C-TLC2274 constitute.Receiving tube L
4Receive Infrared, the amplifier first order is for receiving image intensifer, and second utmost point is formed the homophase AC amplifier, and the third level is a voltage follower, C
10, C
11Be used for preventing the circuit self-excitation, D
11To the amplifying signal shaping, the signal after the shaping passes through C
6Integration.Signal entering signal sample circuit behind the voltage follower.
From the signal that the 7th pin of transport and placing device USC is exported, process stabilivolt ZW
1, ZW
2Resistance R is passed through in step-down again
14, R
5After the dividing potential drop, be connected to triode T
4Base stage, by triode T
4Emitter enter single-chip microcomputer U
4Treatment circuit.
Claims (1)
1, linear infrared beam smoke detector comprises transmitter and receiver two parts composition, it is characterized in that described transmitter is connected to diode D by power pad BUS1 and BUS2
2-D
5No pole-change is by diode D
1Meet triode T
1Collector and resistance R
1, base stage connects stabilivolt ZW
1, emitter passes through resistance R
2Meet power valve L
1Positive pole, L
1Negative pole connect capacitor C respectively
2With triode T
3Collector, by C
5The other end is connecting resistance R respectively
5, RP
2And RP
1, pass through resistance R
3Meet T
2Base stage, collector connects resistance R
4, capacitor C
1Meet T
3Base stage, grounded emitter, T
2Emitter be connected to T
1Emitter and resistance R
2Between; Receiver by bus voltage BUS3-BUS4 through diode D
6-D
9D is passed through in no pole-change again
10Connect resistance R respectively
24An end and triode T
8Collector, base stage connects the other end and the stabilivolt ZW4 of resistance R 24 respectively, emitter is by stabilivolt ZW
5Be connected to voltage stabilizing chip U
22 pin of-HT1050, by the voltage of 3 pin output 5V, bus signals passes through resistance R
22Connect triode T
7Base stage, by collector output inversion signal, pass through resistance R again
25, R
26Dividing potential drop enters code translator U
39 pin of-MC145027, the decoding correct signal is by U
3The 11-15 pin output of-MC145027 enters single-chip microcomputer U
4-PIC16C711 is by U
412,13 pin meet red, yellow pilot lamp L respectively
2And L
3, return coded signal by single motor U
4Resistance R is passed through in the 7 pin output of-NC16C711
20Be connected to triode T
6Base stage, pass through resistance R by collector
19Insert on the bus receiving tube L on the signal amplification circuit
4Receive Infrared, by the 7 pin entering signal sample circuits of amplifier USC-TLC2274, through stabilivolt ZW
1, ZW
2Resistance R is passed through in step-down
14, R
5After the dividing potential drop, by triode T
4Emitter connect single-chip microcomputer U
4-NC16C711 treatment circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99257190 CN2403085Y (en) | 1999-12-07 | 1999-12-07 | Linear infrared beam smoke sensing detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99257190 CN2403085Y (en) | 1999-12-07 | 1999-12-07 | Linear infrared beam smoke sensing detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2403085Y true CN2403085Y (en) | 2000-10-25 |
Family
ID=34040130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99257190 Expired - Fee Related CN2403085Y (en) | 1999-12-07 | 1999-12-07 | Linear infrared beam smoke sensing detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2403085Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093569A (en) * | 2012-11-01 | 2013-05-08 | 深圳市泛海三江电子有限公司 | Code returning judgment method and drive circuit of current type industrial control bus |
| CN105092953A (en) * | 2015-09-17 | 2015-11-25 | 无锡蓝天电子有限公司 | Residual current detector and fire alarm system |
-
1999
- 1999-12-07 CN CN 99257190 patent/CN2403085Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093569A (en) * | 2012-11-01 | 2013-05-08 | 深圳市泛海三江电子有限公司 | Code returning judgment method and drive circuit of current type industrial control bus |
| CN103093569B (en) * | 2012-11-01 | 2015-04-22 | 深圳市泛海三江电子有限公司 | Code returning judgment method and drive circuit of current type industrial control bus |
| CN105092953A (en) * | 2015-09-17 | 2015-11-25 | 无锡蓝天电子有限公司 | Residual current detector and fire alarm system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: GST LIMITED TO: GST HOLDINGS LIMITED |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Haiwan Safety Technology Co., Ltd Patentee before: Gulf Security Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: GST LIMITED Free format text: FORMER NAME OR ADDRESS: GST HOLDINGS LIMITED |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Gulf Security Technology Co., Ltd. Patentee before: Haiwan Safety Technology Co., Ltd |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |