CN105448023A - Solar forest fire warning device - Google Patents
Solar forest fire warning device Download PDFInfo
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- CN105448023A CN105448023A CN201510851163.5A CN201510851163A CN105448023A CN 105448023 A CN105448023 A CN 105448023A CN 201510851163 A CN201510851163 A CN 201510851163A CN 105448023 A CN105448023 A CN 105448023A
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- forest fire
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- smoke transducer
- signal amplification
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- 206010000369 Accident Diseases 0.000 claims description 16
- 230000004297 night vision Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 16
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
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- LXQXZNRPTYVCNG-YPZZEJLDSA-N americium-241 Chemical compound [241Am] LXQXZNRPTYVCNG-YPZZEJLDSA-N 0.000 description 1
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/005—Fire alarms; Alarms responsive to explosion for forest fires, e.g. detecting fires spread over a large or outdoors area
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
- G08B17/125—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions by using a video camera to detect fire or smoke
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/28—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for farming
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- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Abstract
The invention discloses a solar forest fire warning device, and belongs to the technical field of a forest fire warning device. The solar forest fire warning device includes a smoke transducer, an infrared video camera, a signal amplification circuit, an ARM-based microcontroller, an audible-visual alarm, a storage battery and a solar cell panel, wherein the signal amplification circuit includes a triode, a constant current source circuit and a voltage-current conversion circuit. The solar forest fire warning device is high in the monitoring accuracy and can maximumly reduce occurrence of forest fires.
Description
Technical field
The present invention relates to a kind of sun power forest fire accident alarm equipment, belong to forest fire accident alarm device technique field.
Background technology
Forest is the natural resources of mankind's preciousness, it can not only for producing, life provide a large amount of timber and secondary product of forestry, but also can water conservation, conserve water and soil, regulate the climate, maintain the ecologic equilibrium.Forest, once breaking out of fire, not only can burn a large amount of trees, and can destroy forest environment.Forest Fires needs to consume a large amount of human and material resources and financial resources.Traditional forest fire protection monitoring, mainly take the mode of artificial patrol monitor and find forest fire, this mode can waste a large amount of human resources, and due to the limitation of manual patrol, sometimes not necessarily can the generation of Timeliness coverage fire, cause spreading of fire.
Application number is 201310583474.9, the applying date is that the application for a patent for invention on November 20th, 2013 discloses a kind of forest fire monitoring system, comprising: multiple sensor be installed in forest, multiple with the center of several sensors be fixed point base station, Surveillance center; Sensor comprises wireless communication module, smoke transducer, the pyroelectric sensor of detection of fires, processor, battery; The wireless communication module of sensor is connected with base station radio; Smoke transducer, pyroelectric sensor, wireless communication module are connected with processor, and processor carries out logical operation and Logic judgment to the data of smoke transducer, the data of pyroelectric sensor, and judged result is transferred to base station by wireless communication module; Base station and Surveillance center's wireless connections; When forest breaking out of fire, smoke transducer and pyroelectric sensor can detect fire condition, and transfer signals to base station, base station by wireless network transmissions to Surveillance center, because base station has the effect of location, so the position of fire can be located during breaking out of fire timely.
Application number is 201310554787.1, and the applying date a kind of forest fire real-time online detection system that has been the disclosure of the invention on November 7th, 2013, comprises the signal pickup assembly be arranged on for monitoring the actual environment in forest in forest; The Surveillance center that the data message receiving the transmission of described signal pickup assembly processes data, receives the monitor terminal of the data message that described Surveillance center is transmitted by internet.This system not only can utilize signal pickup assembly to carry out Real-Time Monitoring to forest environment, and the monitor terminal be sent to after being processed by the signal monitored on internet, as long as make the supervisor of forest enter internet just can view in forest the situation whether having fire to occur at any time.
Application number is 201410548822.3, and the applying date is the wireless sensor network node method for arranging that the application for a patent for invention on October 16th, 2014 proposes a kind of forest fire monitoring, and its step is as follows: (1) disposes aggregation node along the transmission electric wire in forest; (2) vertical transfer electric wire direction, with the aggregation node arranged for benchmark, disposes probe node according to node radius of investigation; (3) between probe node and between aggregation node and probe node dispose be used for subsidiary communications simplify node; (4) at part of nodes place supplement simplify node.This invention can meet the application demand of modern forest fire monitoring, for a kind of method that forest fire monitoring provides wireless sensor network node to arrange, be conducive to promoting the importance and functions of wireless sensor network in Forest Fire Alarm, breach traditional inserting knot thinking, extend the life-span of whole network, improve the reliability of network.
Existing its intelligence degree of forest fire monitoring panalarm is not high, monitoring precision is low, it is high to misrepresent deliberately rate of false alarm, can not be well people's service.
Summary of the invention
In order to solve the problem, the present invention proposes a kind of sun power forest fire accident alarm equipment, monitoring precision is high, farthest reduces the generation of forest fire.
The present invention adopts following technical scheme for solving its technical matters:
A kind of sun power forest fire accident alarm equipment, comprise smoke transducer, infrared video camera, based on ARM microcontroller, audible-visual annunciator, accumulator and solar panel, wherein smoke transducer is connected respectively with based on ARM microcontroller with infrared video camera, is linked in sequence based on ARM microcontroller, audible-visual annunciator, accumulator and solar panel;
Also comprise signal amplification circuit, signal amplification circuit one end is connected with smoke transducer, and the other end is connected with based on ARM microcontroller; Described signal amplification circuit comprises triode, constant-current source circuit and voltage-current converter circuit, wherein, the output terminal of described constant-current source circuit, the input end of voltage-current converter circuit are all connected with the collector of triode, the base stage of triode is connected with the output terminal of smoke transducer respectively with emitter, and as the in-phase input end of signal amplification circuit and inverting input, the output terminal of voltage-current converter circuit is connected with based on ARM microcontroller.
As a preferred technical solution of the present invention: the described model based on ARM microcontroller is AT91RM9200.
As a preferred technical solution of the present invention: described audible-visual annunciator and accumulator adopt series system realizing circuit to be connected.
As a preferred technical solution of the present invention: described audible-visual annunciator is fire alarm bell.
As a preferred technical solution of the present invention: described infrared video camera is night vision infrared video camera.
As a preferred technical solution of the present invention: described smoke transducer is ion type smog sensor.
A kind of sun power forest fire accident alarm equipment of the present invention, adopts above technical scheme compared with prior art, has following technique effect:
1, forest fire accident alarm equipment of the present invention, monitoring precision is high, farthest reduces the generation of fire.
2, signal amplification circuit of the present invention, can overcome classical signal amplifying circuit causes distorted signals problem because of input and output impedance.
3, signal amplification circuit constant-current source circuit of the present invention replaces pull-up resistor to carry out voltage amplification, has both solved problem of dtmf distortion DTMF and in turn simplify circuit, improve reliability stability.
4, the present invention adopts sun power to be that audible-visual annunciator is powered, and good energy-conserving effect, economic worth is high, environmental protection.
5, of the present invention real-time, uninterrupted effective monitoring in 24 hours can be realized, be do not rely on manually participate in judging, forest fire discovery rate is high.
Accompanying drawing explanation
Fig. 1 is sun power forest fire accident alarm equipment schematic of the present invention.
Fig. 2 is the schematic diagram of signal amplification circuit of the present invention.
Embodiment
Below the invention is described in further details.
A kind of sun power forest fire accident alarm equipment as shown in Figure 1, comprise smoke transducer, infrared video camera, based on ARM microcontroller, audible-visual annunciator, accumulator and solar panel, wherein smoke transducer is connected respectively with based on ARM microcontroller with infrared video camera, is linked in sequence based on ARM microcontroller, audible-visual annunciator, accumulator and solar panel;
Also comprise signal amplification circuit as shown in Figure 2, signal amplification circuit one end is connected with smoke transducer, and the other end is connected with based on ARM microcontroller; Described signal amplification circuit comprises triode, constant-current source circuit and voltage-current converter circuit, wherein, the output terminal of described constant-current source circuit, the input end of voltage-current converter circuit are all connected with the collector of triode, the base stage of triode is connected with the output terminal of smoke transducer respectively with emitter, and as the in-phase input end of signal amplification circuit and inverting input, the output terminal of voltage-current converter circuit is connected with based on ARM microcontroller.
As a preferred technical solution of the present invention: the described model based on ARM microcontroller is AT91RM9200.
As a preferred technical solution of the present invention: described audible-visual annunciator and accumulator adopt series system realizing circuit to be connected.
As a preferred technical solution of the present invention: described audible-visual annunciator is fire alarm bell.
As a preferred technical solution of the present invention: described infrared video camera is night vision infrared video camera.
As a preferred technical solution of the present invention: described smoke transducer is ion type smog sensor.
Signal amplification circuit of the present invention, can overcome classical signal amplifying circuit causes distorted signals problem because of input and output impedance.The amplifying circuit of traditional structure, needs electric current to produce larger change, voltage just can be caused to produce larger change, realize enlarging function; If curent change is less, then enlarging function is not obvious does not even amplify, and can have influence on input signal due to the change of output current, causes the degree of distortion of traditional amplifying circuit higher.There is impedance between BE knot due to triode, control transistor collector curent change can affect the voltage drop between BE knot, and the raw information form of input signal is changed, and causes distortion to be difficult to eliminate.
Present invention employs constant-current source circuit replaces pull-up resistor to carry out voltage amplification, and the motional impedance of constant current source is almost infinitely great, and the input impedance substantially without the need to the voltage-current converter circuit of electric current driving is also almost infinitely great.According to the formula of U=IR, curent change small a bit, all can cause voltage that a significantly change occurs, thus realize the amplification of voltage, amplification effect is obvious.Simultaneously, because the curent change of constant current source own levels off to zero, triode T base is penetrated the required curent change that controls and is leveled off to zero, dynamic electric voltage change between the BE knot of triode levels off to zero, isolate the impact of amplifying circuit output current on input signal, thus make the distortion of amplifying circuit level off to zero.Therefore signal amplification unit constant-current source circuit replaces pull-up resistor to carry out voltage amplification, has both solved problem of dtmf distortion DTMF and in turn simplify circuit, and improve reliability stability.
Whether the present invention adopts smoke transducer to monitor forest has fire to occur.Smoke transducer realizes fire disasters protection by the concentration of monitoring smog, smoke alarm inside adopts ion type smog sensing, ion type smog sensor is a kind of advanced technology, the reliable sensor of working stability, be widely used in various fire protection alarm system, performance is much better than the fire-alarm of gas sensing resistance class.It has radioactive source americium 241 inside inside and outside ionization chamber, the positive and negative ion that ionization produces, and moves under the effect of electric field respectively towards positive and negative electrode.Under normal conditions, the electric current of inside and outside ionization chamber, voltage are all stable.Once there be smog to flee in disorder outer ionization chamber.Disturb the proper motion of charged particle, electric current, voltage will change to some extent, destroys the balance between inside and outside ionization chamber, so wireless launcher sends wireless alarm signal, the Receiving Host in a notice distant place, passes warning message.Smoke transducer is widely used in the various fields such as city security protection, community, factory, company, school, family, villa, warehouse, resource, oil, chemical industry, gas transmission and distribution.
Smoke transducer mainly contains ion type smog sensor and gas-sensitive smog sensor.Gas sensor is a kind of sensor detecting specific gas.It converts electric signal to by gaseous species and with concentration dependent information, according to the power of these electric signal just can obtain with gas to be measured in the environment there is the relevant information of situation, thus can carry out detecting, monitor, report to the police; Can also be formed by interface circuit and computing machine and automatically detect, control and warning system.It mainly comprises semiconductor gas sensor, catalytic combustion type gas sensor and Electro-chemical Gas Sensor etc., and wherein maximum are semiconductor gas sensors.Tobacco pipe with ion generator fog siren wants sensitiveer to the induction of small smoke particle, to various cigarette energy equalizer response; And the induction of forward-type photoelectric mist alarm to slightly large smoke particle is sensitiveer, a little to grey cigarette, black smoke difference in response.When there is raging flames, in air, the fine particle of smog is more, and when smouldering, smoke particle slightly large in air can be more.If after fire occurs, create the fine particle of a large amount of smog, Tobacco pipe with ion generator fog siren first can be reported to the police than photoelectric mist alarm.These two kinds of smoke alarm time intervals are little, but spreading of this kind of fire is exceedingly fast, and it is better that Tobacco pipe with ion generator fog siren is installed in the suggestion of this type of place.After another kind of fire of smouldering occurs, create a large amount of slightly large smoke particles, photoelectric mist alarm first can be reported to the police than Tobacco pipe with ion generator fog siren, and photoelectric mist alarm is installed in the suggestion of this kind of place.
The present invention adopts sun power to be that audible-visual annunciator is powered, and good energy-conserving effect, economic worth is high, environmental protection.The advantage of sun power is as follows: (1) is general: solar light cultivated illumination the earth, does not have restriction no matter land or the ocean of region, no matter high mountain or island, all has everywhere, can directly development and utilization, is convenient to collection, and need not exploits and transport.(2) harmless: develop sun power and do not pollute the environment, it is one of most clean energy resource, in today that environmental pollution is more and more serious, this point is extremely valuable.3) huge: the annual solar radiant energy arrived on earth surface is about equivalent to 130,000,000,000,000 tons of coals, and its total amount belongs to the maximum energy can developed in the world now.(4) permanent: the nuclear energy rate estimation produced according to the sun, the reserves of hydrogen enough maintain over ten billion year, and the life-span of the earth is also about tens years, in this sense, can say that the energy of the sun is nexhaustible.
Forest fire accident alarm equipment of the present invention, monitoring precision is high, farthest reduces the generation of fire.Of the present invention real-time, uninterrupted effective monitoring in 24 hours can be realized, be do not rely on manually participate in judging, forest fire discovery rate is high.
Above embodiments of the present invention are explained in detail, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, can also makes a variety of changes under the prerequisite not departing from present inventive concept.
Claims (6)
1. a sun power forest fire accident alarm equipment, comprise smoke transducer, infrared video camera, based on ARM microcontroller, audible-visual annunciator, accumulator and solar panel, wherein smoke transducer is connected respectively with based on ARM microcontroller with infrared video camera, is linked in sequence based on ARM microcontroller, audible-visual annunciator, accumulator and solar panel;
Characterized by further comprising signal amplification circuit, signal amplification circuit one end is connected with smoke transducer, and the other end is connected with based on ARM microcontroller; Described signal amplification circuit comprises triode, constant-current source circuit and voltage-current converter circuit, wherein, the output terminal of described constant-current source circuit, the input end of voltage-current converter circuit are all connected with the collector of triode, the base stage of triode is connected with the output terminal of smoke transducer respectively with emitter, and respectively as the in-phase input end of signal amplification circuit and inverting input, the output terminal of voltage-current converter circuit is connected with ARM microcontroller.
2. a kind of sun power forest fire accident alarm equipment according to claim 1, is characterized in that, the described model based on ARM microcontroller is AT91RM9200.
3. a kind of sun power forest fire accident alarm equipment according to claim 1, it is characterized in that, described audible-visual annunciator and accumulator adopt series system realizing circuit to be connected.
4. a kind of sun power forest fire accident alarm equipment according to claim 1, it is characterized in that, described audible-visual annunciator is fire alarm bell.
5. a kind of sun power forest fire accident alarm equipment according to claim 1, it is characterized in that, described infrared video camera is night vision infrared video camera.
6. a kind of sun power forest fire accident alarm equipment according to claim 1, it is characterized in that, described smoke transducer is ion type smog sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510851163.5A CN105448023A (en) | 2015-11-30 | 2015-11-30 | Solar forest fire warning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510851163.5A CN105448023A (en) | 2015-11-30 | 2015-11-30 | Solar forest fire warning device |
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| CN105448023A true CN105448023A (en) | 2016-03-30 |
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| CN201510851163.5A Pending CN105448023A (en) | 2015-11-30 | 2015-11-30 | Solar forest fire warning device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4744038A (en) * | 1983-11-01 | 1988-05-10 | Nohmi Bosai Kogyo Co. Ltd. | Fire detector equipped with a sensor |
| CN103546106A (en) * | 2013-10-21 | 2014-01-29 | 杜一敏 | Signal amplification circuit |
| CN103824412A (en) * | 2012-11-19 | 2014-05-28 | 西安众智惠泽光电科技有限公司 | Forest fire detection device |
| CN103854420A (en) * | 2012-11-30 | 2014-06-11 | 西安奥赛福科技有限公司 | Fire monitoring alarm system based on ZIGBEE |
-
2015
- 2015-11-30 CN CN201510851163.5A patent/CN105448023A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4744038A (en) * | 1983-11-01 | 1988-05-10 | Nohmi Bosai Kogyo Co. Ltd. | Fire detector equipped with a sensor |
| CN103824412A (en) * | 2012-11-19 | 2014-05-28 | 西安众智惠泽光电科技有限公司 | Forest fire detection device |
| CN103854420A (en) * | 2012-11-30 | 2014-06-11 | 西安奥赛福科技有限公司 | Fire monitoring alarm system based on ZIGBEE |
| CN103546106A (en) * | 2013-10-21 | 2014-01-29 | 杜一敏 | Signal amplification circuit |
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Application publication date: 20160330 |