CN204731929U - A kind of fire hazard aerosol fog pick-up unit - Google Patents
A kind of fire hazard aerosol fog pick-up unit Download PDFInfo
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- CN204731929U CN204731929U CN201520349163.0U CN201520349163U CN204731929U CN 204731929 U CN204731929 U CN 204731929U CN 201520349163 U CN201520349163 U CN 201520349163U CN 204731929 U CN204731929 U CN 204731929U
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- fire
- development board
- smoke transducer
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Abstract
The utility model provides a kind of fire hazard aerosol fog pick-up unit, is placed in place to be detected, comprises camera, smoke transducer module, ARM9 development board and alarm unit; Camera is connected with ARM9 development board, for gathering the view data in place to be detected, and is sent to ARM9 development board; Smoke transducer module is connected with ARM9 development board by expansion I/O mouth, for sensing the smokescope signal in place to be detected, and is converted to electric signal and is sent to ARM9 development board; ARM9 development board is connected with alarm unit further, for by the data received compared with the fire generation decision threshold prestored, judged whether that fire occurs, and judge fire occur time control alarm unit give the alarm.The utility model not only can improve the precision of fire detection, and what can occur at fire just can find fire in early days, and improves the antijamming capability of fire detection, effectively can avoid the generation of false alarm.
Description
Technical field
The utility model relates to a kind of fire detection device, particularly relates to a kind of fire hazard aerosol fog pick-up unit based on ARM9 development board.
Background technology
Along with the development of society, while the wealth of society is increasing, fire occur probability also in rising trend, the life that fire causes and property loss also increasing.Therefore, need to detect fire, with the disaster reduced or avoid fire to bring.At present, by analyzing the phenomenon such as temperature rising, smog diffusion, smokescope increase that produces in early days of fire, can detection of fires very well.
If can or fire be detected exactly under the not serious condition of situation and give the alarm before fire produce, at utmost can reduce the generation that the dead group of group hinders fire failure, reduce people's life and property loss.
Therefore, need to provide a kind of fire detection device, improve the precision of fire detection, reduce the loss that fire brings.
Utility model content
The purpose of this utility model is, provides a kind of fire hazard aerosol fog pick-up unit, improves the precision of fire detection, reduces the loss that fire brings.
For achieving the above object, the utility model provides a kind of fire hazard aerosol fog pick-up unit, is placed in place to be detected, comprises camera, smoke transducer module, ARM9 development board and alarm unit; Described camera is connected with described ARM9 development board, for gathering the view data in place to be detected, and is sent to described ARM9 development board; Described smoke transducer module is connected with described ARM9 development board by expansion I/O mouth, for sensing the smokescope signal in place to be detected, and is converted to electric signal and is sent to described ARM9 development board; Described ARM9 development board is connected with described alarm unit further, for by the data received compared with the fire generation decision threshold prestored, judged whether that fire occurs, and controlled described alarm unit give the alarm when judging that fire occurs.
Data, by camera and smoke transducer image data, are then passed to the analysis of ARM9 development board, have judged whether that fire occurs by the utility model, make people can handling and prevention fire more early; And by application smoke sensing, the precision of fire detection not only can be improved, what can occur at fire just can find fire in early days, and improves the antijamming capability of fire detection, effectively can avoid the generation of false alarm.
Accompanying drawing explanation
Fig. 1 is the configuration diagram of fire hazard aerosol fog pick-up unit described in the utility model;
Fig. 2 is the circuit diagram of smoke transducer module one embodiment described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, fire hazard aerosol fog pick-up unit described in the utility model is elaborated.
See Fig. 1, fire hazard aerosol fog pick-up unit described in the utility model, comprises camera 11, smoke transducer module 12, ARM9 development board 13 and alarm unit 14; Described fire hazard aerosol fog pick-up unit is placed in place to be detected.Find by analysis, smokescope is as the essential characteristic of smog fire, fire serious conditions can be reflected, therefore the utility model is by application smoke sensing, not only can improve the precision of fire detection, what can occur at fire just can find fire in early days, and improves the antijamming capability of fire detection, effectively can avoid the generation of false alarm; Below provide detailed description.
Described camera 11 is connected with described ARM9 development board 13, for gathering the view data in place to be detected, and is sent to described ARM9 development board 13.
As optional embodiment, described camera 11 adopts the S circumscribed USB camera of instant inserted and instant using type.USB camera is responsible for the fire photo of the floor when fire occurs and record, and the view data collected directly is transferred to ARM9 development board 13, understands the condition of a fire in time for user.The driving under Linux environment can be made for this USB camera, become UVC and drive, can be directly connected with ARM9 development board 13 by USB interface.Wherein, UVC(UB video class) be Microsoft the combines release consensus standard defined for USB video capture device with other Ji Jia equipment vendors), the hardware device meeting UVC specification normally can use under installing any driver at not needs in main frame.
Described smoke transducer module 12 is connected with described ARM9 development board 13 by expansion I/O mouth, for sensing the smokescope signal in place to be detected, and is converted to electric signal and is sent to described ARM9 development board 13.Also namely, what ARM9 development board 13 received is the digital information that described smoke transducer module 12 is transferred to its port.
As optional embodiment, described smoke transducer module 12 comprises smoke transducer 121 and transmission circuit 122; Described smoke transducer 121 senses the smokescope signal in place to be detected by gas sensing resistance, obtains corresponding conductivity variations; Described transmission circuit 122, exports for described conductivity variations being converted to corresponding electric signal.
Optionally, described smoke transducer 121 adopts MQ-2 type gas sensor.MQ-2 type gas sensor to liquefied gas, propane, hydrogen highly sensitive, also very desirable to the detection of rock gas and other combustible vapor.It is formed primarily of LM393, MQ gas sensor, and it also has analog quantity and Transistor-Transistor Logic level two kinds of output forms, and analog output voltage is 0 ~ 4.3V, and concentration more high voltage is lower.The gas sensitive that MQ-2 gas sensor uses is the tin ash (SnO2) that conductivity is lower in clean air; When there is inflammable gas in the site surrounding to be detected residing for sensor, in its electrical resistance air combustable gas concentration increase and increase, conductivity reduces with the increase of combustable gas concentration in air.Its principle of work is when combustable gas concentration raises in atmosphere, the gas sensing resistance conductivity of self reduces, by transmission circuit, this change transitions one-tenth is changed corresponding electric signal with gas concentration to export, the smokescope change in place to be detected can be detected.
Described ARM9 development board 13 is connected with described alarm unit 14 further, for by the data received compared with the fire generation decision threshold prestored, judge whether that fire occurs, and controlled described alarm unit 14 give the alarm when judging that fire occurs.
As optional embodiment, described ARM9 development board 13 is further used for, when being determined with fire and occurring, sending alarming short message to the mobile terminal set by GPRS.Such as, use GPRS to send note to the phone number set, short message content can be " XX place finds a large amount of smog, likely breaking out of fire ", so that related personnel is ready early.
Optionally, described ARM9 development board 13 adopts the XC2440 embedded board carrying good a large amount of external interface and accessory in advance.What XC2440 adopted is Samsung S3C2440 processor scheme, whole plate is core board+base arrangement, core board is integrated with most of complicated circuit, draw common interfaces (such as, the connector of smoke transducer module, first-class module of making a video recording), there is good secondary development, for whole fire alarm installation each module between link integrate good material conditions are provided.XC2440 is equipped with 4.3 inches of touch-screens, Ethernet interface, RS232 level mouth, and USB HOST interface, the interfaces such as USB DEVICE interface and JTAC, are design and the write of required program, and provide good bridge to the control and operation of device.
Optionally, the hummer carried in XC2440 embedded board can being adopted as alarm unit 14, giving the alarm to control hummer when judging that fire occurs.
With reference to figure 2, the circuit diagram of smoke transducer module one embodiment described in the utility model.In the present embodiment, described smoke transducer module can be treated the smog detecting place further and absorb, and provides instruction in time to smokescope situation.
In the present embodiment, described smoke transducer module 12 comprises: a power transformer T1, for changing exchanging input other assembly power supply that direct current output is described smoke transducer module 12 into.One transistor Q1, its base stage is electrically connected with described smoke transducer by a potentiometer R1, and its collector accesses the forward output terminal of described power transformer T1 by a relay J 1, its grounded emitter.One single-pole double-throw switch (SPDT) K1, the forward output terminal of described power transformer T1 is accessed in its moved end, and one not moved end is electrically connected with an electromotion pilot lamp L1 by a resistance R2, its another not moved end be electrically connected one and singly turn to fan F1.Wherein, when the conductivity of described smoke transducer is lower than default conductivity threshold, described transistor Q1 conducting, described relay J 1 controls the described fan F1 that singly turns to and starts, and absorbs smog; When the conductivity of described smoke transducer is higher than default conductivity threshold, described transistor Q1 disconnects, and described relay J 1 controls described electromotion pilot lamp L1 and starts.Be specifically as follows: the direct current DC that the 220V 50Hz of input interchange AC changes voltage stabilizing 5V into exports by power transformer T1; Smoke transducer adopts MQ-2 type gas sensor; The Standard resistance range of potentiometer R1 is 0-50K; The resistance of resistance R2 is 1 K; Transistor Q1 adopts 9013 models; Relay J 1 adopts the model of JRC-4100F 5V; Electromotion pilot lamp L1 adopts the pale green light emitting diode of 3.5V; Singly turn to fan F1 be 5V motor singly turn to small-sized fans.
In the working method of the present embodiment be: 220V electric main introduces circuit from plug, 5V voltage of direct-flow voltage regulation is become after power transformer T1 step-down, DC voltage directly works for the heater strip H-H of MQ-2, and heater strip, to after MQ-2 preheating certain hour, normally could detect smog.5V voltage of direct-flow voltage regulation is connected on relay J 1, electromotion pilot lamp L1 and fan F1 simultaneously, is other assembly power supply of smoke transducer module 12.When the ETS concentration residing for MQ-2 raises, between the output electrode H-H of its two ends, conductance reduces, be then added in electrode H-H both end voltage and reduce, then output voltage raises.When between electrode H-H, conductance is lower than default conductivity threshold, transistor Q1 conducting; The voltage being now added in relay J 1 two ends reaches its trigger voltage (5V), relay J 1 redirect, and electromotion pilot lamp L1 extinguishes; Fan F1 circuit ON is started working, and starts to absorb smog.When ETS concentration reduces gradually, MQ-2 conductance raises, and be added in electrode H-H both end voltage and raise, output voltage reduces; When between electrode H-H, conductance is higher than default conductivity threshold, transistor Q1 ends, then relay J 1 both end voltage is zero, and relay J 1 redirect is normality, and fan F1 stops operating, and electromotion pilot lamp L1 lights.
Preferably, sieves 21 can be added; Fan produces the housing that smoke inhalation is equipped with the sieves 21 of activated charcoal by suction, first after layer of active carbon is filtered, then through anion generator, thus removes objectionable impurities.Sieves 21 can remove cleaning or change, and activated charcoal also can be changed.
Data, by camera and smoke transducer image data, are then passed to the analysis of ARM9 development board, have judged whether that fire occurs by the utility model, make people can handling and prevention fire more early; And by application smoke sensing, the precision of fire detection not only can be improved, what can occur at fire just can find fire in early days, and improves the antijamming capability of fire detection, effectively can avoid the generation of false alarm.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model structure; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. a fire hazard aerosol fog pick-up unit, is placed in place to be detected, it is characterized in that, comprises camera, smoke transducer module, ARM9 development board and alarm unit;
Described camera is connected with described ARM9 development board, for gathering the view data in place to be detected, and is sent to described ARM9 development board;
Described smoke transducer module is connected with described ARM9 development board by expansion I/O mouth, for sensing the smokescope signal in place to be detected, and is converted to electric signal and is sent to described ARM9 development board;
Described ARM9 development board is connected with described alarm unit further, for by the data received compared with the fire generation decision threshold prestored, judged whether that fire occurs, and controlled described alarm unit give the alarm when judging that fire occurs.
2. fire hazard aerosol fog pick-up unit according to claim 1, is characterized in that, described camera adopts the S circumscribed USB camera of instant inserted and instant using type.
3. fire hazard aerosol fog pick-up unit according to claim 1, is characterized in that, described smoke transducer module comprises smoke transducer and transmission circuit; Described smoke transducer senses the smokescope signal in place to be detected by gas sensing resistance, obtains corresponding conductivity variations; Described transmission circuit, exports for described conductivity variations being converted to corresponding electric signal.
4. fire hazard aerosol fog pick-up unit according to claim 1, is characterized in that, described smoke transducer module comprises:
One power transformer, for changing exchanging input other assembly power supply that direct current output is described smoke transducer module into;
One transistor, its base stage is electrically connected with described smoke transducer by a potentiometer, and its collector accesses the forward output terminal of described power transformer by a relay, its grounded emitter;
One single-pole double-throw switch (SPDT), the forward output terminal of described power transformer is accessed in its moved end, and one not moved end is electrically connected with an electromotion pilot lamp by a resistance, its another not moved end be electrically connected one and singly turn to fan;
Wherein, when the conductivity of described smoke transducer is lower than default conductivity threshold, described transistor turns, singly turns to starting fan described in described Control, absorbs smog; When the conductivity of described smoke transducer is higher than default conductivity threshold, described transistor disconnects, and electromotion pilot lamp described in described Control starts.
5. the fire hazard aerosol fog pick-up unit according to claim 1,3 or 4, is characterized in that, described smoke transducer adopts MQ-2 type gas sensor.
6. fire hazard aerosol fog pick-up unit according to claim 1, is characterized in that, described ARM9 development board is further used for, when being determined with fire and occurring, sending alarming short message to the mobile terminal set by GPRS.
7. the fire hazard aerosol fog pick-up unit according to claim 1 or 6, is characterized in that, described ARM9 development board adopts XC2440 embedded board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520349163.0U CN204731929U (en) | 2015-05-27 | 2015-05-27 | A kind of fire hazard aerosol fog pick-up unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520349163.0U CN204731929U (en) | 2015-05-27 | 2015-05-27 | A kind of fire hazard aerosol fog pick-up unit |
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| CN204731929U true CN204731929U (en) | 2015-10-28 |
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| CN201520349163.0U Expired - Fee Related CN204731929U (en) | 2015-05-27 | 2015-05-27 | A kind of fire hazard aerosol fog pick-up unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108171914A (en) * | 2018-02-11 | 2018-06-15 | 福建九牧厨柜有限公司 | A kind of fire alarm purifier and relevant control method |
-
2015
- 2015-05-27 CN CN201520349163.0U patent/CN204731929U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108171914A (en) * | 2018-02-11 | 2018-06-15 | 福建九牧厨柜有限公司 | A kind of fire alarm purifier and relevant control method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20160527 |