CN201681461U - Wireless flame detector - Google Patents
Wireless flame detector Download PDFInfo
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- CN201681461U CN201681461U CN2010200552432U CN201020055243U CN201681461U CN 201681461 U CN201681461 U CN 201681461U CN 2010200552432 U CN2010200552432 U CN 2010200552432U CN 201020055243 U CN201020055243 U CN 201020055243U CN 201681461 U CN201681461 U CN 201681461U
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Abstract
The utility model relates to a wireless flame detector comprising a flame detection sensor, wherein the flame detection sensor (1) is connected with a signal amplification circuit, the signal amplification circuit is connected with a signal processing circuit, and the signal processing circuit is connected with a microprocessor. The wireless flame detector is characterized in that the flame detection sensor is a pyroelectric infrared sensor or an ultraviolet flame detection sensor for detecting flame or is a smoke or spectral detection sensor. The microprocessor is connected with a wireless module and controls the wireless module to transmit alarm information; and the wireless module sends out wireless alarm information according to a control signal of the microprocessor. The utility model has the advantages that the utility model has high detection accuracy, has wireless communication capability, can realize a wireless linkage alarm by the capability of a self-organizing network of a wireless fire detector, does not need a cable, reduces the cost and avoids a fire hazard existing because of cable communication.
Description
Technical field
The utility model belongs to detector, relates in particular to a kind of wireless fire disaster detector that is used for fire alarm.
Background technology
At present, fire detector mainly contains several major types such as smoking-collecting type smoke detector, carbon monoxide detector, image-type detector, some type infrared eye, typical ultraviolet detector and infrared, ultraviolet hybrid detector.
Smoking-collecting type smoke detector, carbon monoxide detector are that smoke particle and carbon monoxide that burning produces are surveyed; By bandpass filtering, amplification, then amplifying signal is handled, carry out fire alarm.But smoking-collecting type smoke detector, carbon monoxide detector are all disturbed by ETS and carbon monoxide easily, and whether can't accurately identify is real fire information.
And above various fire detector all belongs to point type fire detector, promptly carry out detection at certain point of fixity space, be nothing but detection range have far have near, contact contactless with detecting material, it is low that detection accuracy has height to have, and do not have mutual contact between the detector, detector output is level signal, or RS232, or wired mode such as RS485, can't be applicable to forest fire, the ecological preservation area, the multi-point interlinked detection of the on-the-spot this large tracts of land of commercial production, the forest fire detecting of layouting on a large scale of the present wired connection that occurs, not only cost is very high, constructional difficulties, and charged cable will become on-the-spot major hidden danger; Therefore, detections such as forest, ecological preservation area, tourist attraction, industry spot for a long time become a big technical barrier, also are that of detection is big blank.
The shortcoming of prior art is: the function that does not intercom mutually between the detector, multi-point interlinked fire detecting arrangement is the forest fire detecting system of layouting on a large scale of wired connection, not only cost is very high, constructional difficulties, and charged cable will become on-the-spot major hidden danger.
The utility model content
The purpose of this utility model provides the high wireless fire disaster detector of a kind of detection accuracy, has the function that short-distance wireless communication, self-organizing network ability and the interlock of multiple spot fire detect.
For achieving the above object, the utility model is explained a kind of wireless flame detector, comprise flame detection sensor, signal amplification circuit, signal processing circuit, microprocessor, the output terminal of described flame detection sensor connects described signal amplification circuit, the output terminal of signal amplification circuit connects described signal processing circuit, the output terminal of signal processing circuit connects described microprocessor, and its key is:
Described flame detection sensor is the pyroelectric infrared sensor or the ultraviolet flame acquisition sensor of flame detection, or other smog, spectral detection sensor, this flame detection sensor is used to detect the situation of fragmentary burning things which may cause a fire disaster or naked light burning, produces signal, and delivers to described signal amplification circuit;
Infrared, ultraviolet hybrid detector then is in order to improve the accuracy rate of detection, prevents to report by mistake two in conjunction with Al Kut standing wave long infrared, ultraviolet detection photoelectric tubes, simultaneously flame characteristic is surveyed, and detection is more accurate.
Described signal amplification circuit amplifies and Filtering Processing the signal that flame detection sensor produces, and the signal after will handling sends described signal processing circuit to;
The signal comparison process that described signal processing circuit transmits signal amplification circuit surpasses under the situation of alarm threshold value, sends burning things which may cause a fire disaster information and wakes described microprocessor up;
The output terminal of described microprocessor is connected with wireless module 5, and the burning things which may cause a fire disaster information that described microprocessor transmits signal processing circuit is carried out the A/D conversion, and carries out digital filtering, artificial intelligence pattern-recognition, controls described wireless module emission warning message;
Described wireless module sends radio alarming information according to microprocessor control signal.
Flame detection sensor is a PYD-1220A type pyroelectric infrared detector, can survey the flame information in 120 ° of angulars field of view, the burning things which may cause a fire disaster information of flame detection sensor perception combustion of wood, the signal output part output burning things which may cause a fire disaster information of flame detection sensor is to signal amplification circuit, burning things which may cause a fire disaster information is amplified through the signal amplification circuit signal, after the filtering, be transferred to signal processing circuit, the burning things which may cause a fire disaster information that signal processing circuit contrast signal amplifying circuit transmits, judge the burning things which may cause a fire disaster signal intensity, if the burning things which may cause a fire disaster signal intensity surpasses alarm threshold value, the described microprocessor of signal processing circuit wake-up, microprocessor carries out the A/D conversion to the fire signal of input, and carry out digital filtering, described wireless module emission alerting signal is controlled in the artificial intelligence pattern-recognition;
Near interlock wireless fire disaster detector perception fire alarm signal, and fire alarm signal is transferred near it interlock wireless fire disaster detector, redirect one by one thus, to Surveillance center, perhaps wireless module directly is transferred near it Surveillance center to alerting signal with condition of a fire information transmission.
The wireless fire disaster detector is realized wireless interlink warning by the ability of its self-organizing network, and each wireless fire disaster detector is exactly a network node, does not need cable, has reduced cost, has avoided because the disaster hidden-trouble that cable communication exists.
Also be provided with power circuit, this power circuit is a solar cell, and this power circuit is described flame detection sensor, signal amplification circuit, signal processing circuit, microprocessor and wireless module power supply.
Described power circuit is solar cell or high-energy battery, or non-maintaining battery, as power supply, is used to provide each circuit module working power.
Described signal amplification circuit is a kind of little power consumption amplifying circuit;
This signal amplification circuit is provided with first amplifier, the in-phase input end of this first amplifier connects the signal output part of described flame detection sensor, be connected with the anode of the 5th electric capacity behind this first amplifier's inverting input string, first resistance, the negativing ending grounding of the 5th electric capacity, described first amplifier's inverting input is also gone here and there behind second resistance, be connected with the output terminal of described first amplifier, described first amplifier's inverting input also is connected with the anode of the 6th electric capacity, and the negative terminal of the 6th electric capacity is connected with the output terminal of described first amplifier;
The output terminal of described first amplifier also is connected with the negative terminal of the 7th electric capacity, behind anode string the 3rd resistance of the 7th electric capacity, be connected with the in-phase input end of second amplifier, go back cross-over connection between the in-phase input end of described second amplifier and the ground 19 electric capacity are arranged, behind the described second amplifier's inverting input string the 4th resistance, be connected with the anode of the 8th electric capacity, the negativing ending grounding of the 8th electric capacity, described second amplifier's inverting input is also gone here and there behind the 5th resistance, be connected with the output terminal of described second amplifier, there is the 9th electric capacity at the two ends of described the 5th resistance also cross-over connection;
The output terminal of described second amplifier also is connected with the negative terminal of the tenth electric capacity, be connected with the 9th resistance between the anode string of the tenth electric capacity and the positive voltage, cross-over connection has the tenth resistance between the anode of described the tenth electric capacity and the ground, the anode of described the tenth electric capacity is also gone here and there and is connected with the normal phase input end of the 3rd amplifier behind the 6th resistance, behind described the 3rd amplifier's inverting input string the 7th resistance, be connected with the anode of the 11 electric capacity, the negativing ending grounding of the 11 electric capacity, described the 3rd amplifier's inverting input is also gone here and there and is connected with the output terminal of the 3rd amplifier behind the 8th resistance, and there is the 12 electric capacity at the two ends of described the 8th resistance also cross-over connection.
Flame detection sensor perception fire signal, the signal output part output fire signal of flame detection sensor, the fire signal of output is transferred to first amplifier through sampling, first amplifier carries out one-level to the fire sampled signal of input and amplifies, the one-level amplifying signal is capacitively coupled to second amplifier through the 7th, the active low-pass filter circuit that second amplifier and peripheral circuit thereof are formed, one-level amplifying signal to input carries out low-pass filtering, filtered fire signal is capacitively coupled to the 3rd amplifier normal phase input end through the tenth, under the effect of the 9th resistance and the tenth resistance, the normal phase input end of the 3rd amplifier is also imported voltage stabilizing, when having fire, under the effect of the tenth electric capacity, the normal phase input end input pulse voltage signal of the 3rd amplifier, the 3rd amplifier carries out secondary to fire signal and amplifies, and output secondary amplifying signal is to signal processing circuit.
Described signal processing circuit is a kind of little power loss signal treatment circuit;
This signal processing circuit is provided with comparer, the normal phase input end of this comparer is connected with the output terminal of described the 3rd amplifier, be connected with positive voltage terminal behind inverting input string the 11 resistance of described comparer, this comparer inverting input is also gone here and there and is connected with ground behind the 12 resistance, and the output terminal of described comparer is connected with the trigger pip end of described microprocessor.
The signal that the comparer comparison process signal amplification circuit of signal processing circuit setting transmits, if the signal that signal amplification circuit transmits surpasses alarm threshold value, comparer sends burning things which may cause a fire disaster information and wakes described microprocessor up.
Described microprocessor is triggered by the comparison signal that signal processing circuit transmits, the signal that signal processing circuit is transmitted carries out A/D conversion, digital filtering and artificial intelligence pattern-recognition, send control command to wireless module when recognizing fire characteristic, send alert information;
This microprocessor is provided with the trigger pip input end, and this trigger pip input end is connected with the output terminal of described comparer;
Described microprocessor also is provided with the first data terminal P2.1, the second data terminal P2.2, the sheet choosing holds CS, serial data output terminal SIMO, serial data input end SIMI to be connected with described wireless module with clock signal terminal.
Microprocessor is the control core of MSP430F1232 type single-chip microcomputer conduct, possess 10 component functions such as analog to digital converter, SPI interface, RS232 interface, comparer and house dog on the sheet, have multiple low-power consumption mode, be particularly suitable in the battery powered system.The trigger pip input end input fire alarm alerting signal of microprocessor, microprocessor carries out digital filtering and artificial intelligence identification to the signal of input, identify the blinking characteristics frequency signal of 2～20Hz of flame combustion, effectively to avoid wrong report and to fail to report generation; Under the trigger action of fire alarm signal, the work of microprocessor control wireless module, microprocessor also can receive the warning message that other flame detector sends simultaneously, and by microprocessor decision whether carrying out jump set.
Described wireless module is a kind of radio-frequency (RF) transceiver of little power consumption, by data-interface and microprocessor communication, can send warning message, also can receive the warning message that other flame detector sends, and by microprocessor decision whether carrying out jump set;
Described wireless module is provided with radio transmitting and receiving chip, this radio transmitting and receiving chip is provided with the first data terminal GDO0, the second data terminal GDO2, chip selection signal end CSn, serial data input end SI, serial data output terminal SO and clock signal input terminal, the described first data terminal GDO0, the second data terminal GDO2, chip selection signal end CSn,. serial data input end SI, the first data terminal P2.1 that serial data output terminal SO and clock signal input terminal are provided with described microprocessor respectively, the second data terminal P2.2, sheet choosing end CS, serial data output terminal SIMO, serial data input end SIMI is connected with clock signal terminal;
Described radio transmitting and receiving chip also is provided with first wireless signal port and second wireless signal port, described first wireless signal port is connected with an end of first inductance, be connected with described second wireless signal port behind other end string 13 electric capacity of this first inductance, described second wireless signal port is also gone here and there ground connection behind second inductance and 14 electric capacity respectively, ground connection behind the described first wireless signal port string, 15 electric capacity, the other end of described first inductance also is connected with an end of the 3rd inductance, ground connection behind other end string 16 electric capacity of the 3rd inductance, the other end of described the 3rd inductance also is connected with an end of the 4th inductance, ground connection behind other end string 17 electric capacity of the 4th inductance, the other end of described the 4th inductance are also gone here and there and are connected with antenna behind 18 electric capacity.
The radio transmitting and receiving chip model of wireless module setting is CC1100, and radio transmitting and receiving chip receives microprocessor control signal, and when being in the fire alarm state, the antenna circuit early warning receives the wireless signal that other wireless fire disaster detector transmission come; Work as breaking out of fire, microprocessor is by the control radio transmitting and receiving chip, control the antenna circuit work that is connected with second wireless signal port with first wireless signal port, send the wireless fire disaster alerting signal to control center, or send the wireless fire disaster alerting signal near the wireless fire disaster detector that is in alert status, the wireless fire disaster detector that is in alert status receives fire alarm signal, trigger its microprocessor control radio transmitting and receiving chip and send fire alarm signal near other fire detector, so fire wireless detector redirect one by one, until with condition of a fire information transmission to the monitoring in center of gravity, thereby realized wireless fire disaster interlink warning function.
Remarkable result of the present utility model is: the detection accuracy height, possess wireless communication capability, and can pass through the ability of the self-organizing network of wireless fire disaster detector, realize wireless interlink warning, do not need cable, reduced cost, avoided because the disaster hidden-trouble that cable communication exists.
Description of drawings
Fig. 1 is a module annexation synoptic diagram of the present utility model;
Fig. 2 is the circuit diagram of this signal amplification circuit and signal processing circuit;
Fig. 3 is microprocessor peripheral circuit figure;
Fig. 4 is the wireless module circuit diagram.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
As shown in Figure 1, a kind of wireless flame detector, comprise flame detection sensor 1, signal amplification circuit 2, signal processing circuit 3, microprocessor 4, the output terminal of described flame detection sensor 1 connects described signal amplification circuit 2, the output terminal of signal amplification circuit 2 connects described signal processing circuit 3, the output terminal of signal processing circuit 3 connects described microprocessor 4, pyroelectric infrared sensor or ultraviolet flame acquisition sensor that described flame detection sensor 1 is a flame detection, or other smog, the spectral detection sensor, this flame detection sensor 1 is used to detect the situation of fragmentary burning things which may cause a fire disaster or naked light burning, produce signal, and deliver to described signal amplification circuit 2;
The signal that 2 pairs of flame detection sensors of described signal amplification circuit 1 produce amplifies and Filtering Processing, and the signal after will handling sends described signal processing circuit 3 to;
The signal comparison process that 3 pairs of signal amplification circuits 2 of described signal processing circuit transmit surpasses under the situation of alarm threshold value, sends burning things which may cause a fire disaster information and wakes described microprocessor 4 up;
The output terminal of described microprocessor 4 is connected with wireless module 5, and the burning things which may cause a fire disaster information that 4 pairs of signal processing circuits 3 of described microprocessor transmit is carried out the A/D conversion, and carries out digital filtering, artificial intelligence pattern-recognition, controls described wireless module 5 emission warning messages;
Described wireless module 5 sends radio alarming information according to the control signal of microprocessor 4.
Also be provided with power circuit 9, this power circuit 9 is solar cell or high-energy battery,, this power circuit 9 is described flame detection sensor 1, signal amplification circuit 2, signal processing circuit 3, microprocessor 4 and wireless module 5 power supplies.
As shown in Figure 2, described signal amplification circuit 2 is a kind of little power consumption amplifying circuits, and the signal that flame detection sensor 1 is produced amplifies and Filtering Processing, and the signal after will handling sends signal processing circuit 3 to;
This signal amplification circuit 2 is provided with the first amplifier IC1, the in-phase input end of this first amplifier IC1 connects the signal output part S of described flame detection sensor 1, inverting input string first resistance R 1 back of this first amplifier IC1 is connected with the anode of the 5th capacitor C 5, the negativing ending grounding of the 5th capacitor C 5, the inverting input of the described first amplifier IC1 is also gone here and there after second resistance R 2, be connected with the output terminal of the described first amplifier IC1, the inverting input of the described first amplifier IC1 also is connected with the anode of the 6th capacitor C 6, and the negative terminal of the 6th capacitor C 6 is connected with the output terminal of the described first amplifier IC1;
The output terminal of the described first amplifier IC1 also is connected with the negative terminal of the 7th capacitor C 7, after anode string the 3rd resistance R 3 of the 7th capacitor C 7, be connected with the in-phase input end of the second amplifier IC2, go back cross-over connection between the in-phase input end of the described second amplifier IC2 and the ground 19 capacitor C 19 are arranged, after inverting input string the 4th resistance R 4 of the described second amplifier IC2, be connected with the anode of the 8th capacitor C 8, the negativing ending grounding of the 8th capacitor C 8, the inverting input of the described second amplifier IC2 is also gone here and there after the 5th resistance R 5, be connected with the output terminal of the described second amplifier IC2, there is the 9th capacitor C 9 at the two ends of described the 5th resistance R 5 also cross-over connection;
The output terminal of the described second amplifier IC2 also is connected with the negative terminal of the tenth capacitor C 10, be connected with the 9th resistance R 9 between the anode string of the tenth capacitor C 10 and the positive voltage, cross-over connection has the tenth resistance R 10 between the anode of described the tenth capacitor C 10 and the ground, the anode of described the tenth capacitor C 10 is also gone here and there the 6th resistance R 6 back and is connected with the normal phase input end of the 3rd amplifier IC3, after inverting input string the 7th resistance R 7 of described the 3rd amplifier IC3, be connected with the anode of the 11 capacitor C 11, the negativing ending grounding of the 11 capacitor C 11, the inverting input of described the 3rd amplifier IC3 is also gone here and there the 8th resistance R 8 back and is connected with the output terminal of the 3rd amplifier IC3, and there is the 12 capacitor C 12 at the two ends of described the 8th resistance R 8 also cross-over connection.
Described signal processing circuit 3 is a kind of little power loss signal treatment circuits, and the signal that the reflection that signal amplification circuit 2 is transmitted is detected burning things which may cause a fire disaster intensity compares processing;
This signal processing circuit 3 is provided with comparer IC4, the normal phase input end of this comparer IC4 is connected with the output terminal of described the 3rd amplifier IC3, inverting input string the 11 resistance R 11 backs of described comparer IC4 are connected with positive voltage terminal, this comparer IC4 inverting input is also gone here and there the 12 resistance R 12 back and is connected with ground, and the output terminal of described comparer IC4 is connected with the trigger pip end of described microprocessor 4.
As shown in Figure 3, described microprocessor 4 is triggered by the comparison signal that signal processing circuit 3 transmits, the signal that signal processing circuit 3 is transmitted carries out A/D conversion, digital filtering and artificial intelligence pattern-recognition, sends control command to wireless module 5 when recognizing fire characteristic, sends alert information;
Described microprocessor 4 is a ultra low-power microcontroller, and this microprocessor 4 is provided with trigger pip input end INT, and this trigger pip input end INT is connected with the output terminal of described comparer IC4;
Described microprocessor 4 also is provided with the first data terminal P2.1, the second data terminal P2.2, the sheet choosing holds CS, serial data output terminal SIMO, serial data input end SIMI to be connected with described wireless module 5 with clock signal terminal CLK.
As shown in Figure 4, described wireless module 5 is radio-frequency (RF) transceiver of a kind of little power consumption, communicates by letter with microprocessor 4 by data-interface, can send warning message, also can receive the warning message that other flame detector sends, and whether carries out jump set by microprocessor 4 decisions;
Described wireless module 5 is provided with radio transmitting and receiving chip 6, this radio transmitting and receiving chip 6 is provided with the first data terminal GDO0, the second data terminal GDO2, chip selection signal end CSn, serial data input end SI, serial data output terminal SO and clock signal input terminal SCLK, the described first data terminal GDO0, the second data terminal GDO2, chip selection signal end CSn, serial data input end SI, the first data terminal P2.1 that serial data output terminal SO and clock signal input terminal SCLK are provided with described microprocessor 4 respectively, the second data terminal P2.2, sheet choosing end CS, serial data output terminal SIMO, serial data input end SIMI is connected with clock signal terminal CLK;
Described radio transmitting and receiving chip 6 also is provided with the first wireless signal port RF-N and the second wireless signal port RF-P, the described first wireless signal port RF-N is connected with an end of first inductance L 1, other end string 13 capacitor C 13 backs of this first inductance L 1 are connected with the described second wireless signal port RF-P, the described second wireless signal port RF-P also goes here and there second inductance L 2 and 14 capacitor C 14 back ground connection respectively, the described first wireless signal port RF-N goes here and there 15 capacitor C 15 back ground connection, the other end of described first inductance L 1 also is connected with an end of the 3rd inductance L 3, the other end string 16 capacitor C 16 back ground connection of the 3rd inductance L 3, the other end of described the 3rd inductance L 3 also is connected with an end of the 4th inductance L 4, the other end string 17 capacitor C 17 back ground connection of the 4th inductance L 4, the other end of described the 4th inductance L 4 are also gone here and there 18 capacitor C, 18 backs and are connected with antenna 7.
Principle of work: flame detection sensor 1 perception burning things which may cause a fire disaster information, the signal output part S output burning things which may cause a fire disaster information of flame detection sensor 1 is to signal amplification circuit 2, burning things which may cause a fire disaster information is amplified through signal amplification circuit 2 signals, after the filtering, be transferred to signal processing circuit 3, the burning things which may cause a fire disaster information that signal processing circuit 3 contrast signal amplifying circuits 2 transmit, judge the burning things which may cause a fire disaster signal intensity, if the burning things which may cause a fire disaster signal intensity surpasses alarm threshold value, the described microprocessor 4 of signal processing circuit 3 wake-ups, the fire signal of 4 pairs of inputs of microprocessor carries out the A/D conversion, and carry out digital filtering, described wireless module 5 emission alerting signals are controlled in the artificial intelligence pattern-recognition;
Near interlock wireless fire disaster detector perception fire alarm signal, and fire alarm signal is transferred near it interlock wireless fire disaster detector, redirect one by one thus, to Surveillance center, perhaps wireless module 5 directly is transferred near it Surveillance center to alerting signal with condition of a fire information transmission.
Claims (6)
1. wireless flame detector, comprise flame detection sensor (1), signal amplification circuit (2), signal processing circuit (3), microprocessor (4), the output terminal of described flame detection sensor (1) connects described signal amplification circuit (2), the output terminal of signal amplification circuit (2) connects described signal processing circuit (3), the output terminal of signal processing circuit (3) connects described microprocessor (4), it is characterized in that:
Described flame detection sensor (1) is the pyroelectric infrared sensor or the ultraviolet flame acquisition sensor of flame detection, or be smog, spectral detection sensor, this flame detection sensor (1) is used to detect the situation of fragmentary burning things which may cause a fire disaster or naked light burning, produce signal, and deliver to described signal amplification circuit (2);
Described signal amplification circuit (2) amplifies and Filtering Processing the signal that flame detection sensor (1) produces, and the signal after will handling sends described signal processing circuit (3) to;
The signal comparison process that described signal processing circuit (3) transmits signal amplification circuit (2) surpasses under the situation of alarm threshold value, sends burning things which may cause a fire disaster information and wakes described microprocessor (4) up;
The output terminal of described microprocessor (4) is connected with wireless module (5), the burning things which may cause a fire disaster information that described microprocessor (4) transmits signal processing circuit (3) is carried out the A/D conversion, and carry out digital filtering, artificial intelligence pattern-recognition, control described wireless module (5) emission warning message;
Described wireless module (5) sends radio alarming information according to the control signal of microprocessor (4).
2. flame detecting apparatus according to claim 1, it is characterized in that: also be provided with power circuit (9), this power circuit (9) is solar cell or high-energy battery, and this power circuit (9) is described flame detection sensor (1), signal amplification circuit (2), signal processing circuit (3), microprocessor (4) and wireless module (5) power supply.
3. flame detecting apparatus according to claim 1 is characterized in that: described signal amplification circuit (2) is a kind of little power consumption amplifying circuit;
This signal amplification circuit (2) is provided with first amplifier (IC1), the in-phase input end of this first amplifier (IC1) connects the signal output part (S) of described flame detection sensor (1), inverting input string first resistance (R1) back of this first amplifier (IC1) is connected with the anode of the 5th electric capacity (C5), the negativing ending grounding of the 5th electric capacity (C5), the inverting input of described first amplifier (IC1) is also gone here and there behind second resistance (R2), be connected with the output terminal of described first amplifier (IC1), the inverting input of described first amplifier (IC1) also is connected with the anode of the 6th electric capacity (C6), and the negative terminal of the 6th electric capacity (C6) is connected with the output terminal of described first amplifier (IC1);
The output terminal of described first amplifier (IC1) also is connected with the negative terminal of the 7th electric capacity (C7), behind anode string the 3rd resistance (R3) of the 7th electric capacity (C7), be connected with the in-phase input end of second amplifier (IC2), go back cross-over connection between the in-phase input end of described second amplifier (IC2) and the ground 19 electric capacity (C19) are arranged, behind inverting input string the 4th resistance (R4) of described second amplifier (IC2), be connected with the anode of the 8th electric capacity (C8), the negativing ending grounding of the 8th electric capacity (C8), the inverting input of described second amplifier (IC2) is also gone here and there behind the 5th resistance (R5), be connected with the output terminal of described second amplifier (IC2), there is the 9th electric capacity (C9) at the two ends of described the 5th resistance (R5) also cross-over connection;
The output terminal of described second amplifier (IC2) also is connected with the negative terminal of the tenth electric capacity (C10), be connected with the 9th resistance (R9) between the anode string of the tenth electric capacity (C10) and the positive voltage, cross-over connection has the tenth resistance (R10) between the anode of described the tenth electric capacity (C10) and the ground, the anode of described the tenth electric capacity (C10) is also gone here and there the 6th resistance (R6) back and is connected with the normal phase input end of the 3rd amplifier (IC3), behind inverting input string the 7th resistance (R7) of described the 3rd amplifier (IC3), be connected with the anode of the 11 electric capacity (C11), the negativing ending grounding of the 11 electric capacity (C11), the inverting input of described the 3rd amplifier (IC3) is also gone here and there the 8th resistance (R8) back and is connected with the output terminal of the 3rd amplifier (IC3), and there is the 12 electric capacity (C12) at the two ends of described the 8th resistance (R8) also cross-over connection.
4. flame detecting apparatus according to claim 3 is characterized in that: described signal processing circuit (3) is a kind of little power loss signal treatment circuit;
This signal processing circuit (3) is provided with comparer (IC4), the normal phase input end of this comparer (IC4) is connected with the output terminal of described the 3rd amplifier (IC3), inverting input string the 11 resistance (R11) back of described comparer (IC4) is connected with positive voltage terminal, this comparer (IC4) inverting input is also gone here and there the 12 resistance (R12) back and is connected with ground, and the output terminal of described comparer (IC4) is connected with the trigger pip end of described microprocessor (4).
5. according to the described flame detecting apparatus of claim 4, it is characterized in that: described microprocessor (4) is a ultra low-power microcontroller, this microprocessor (4) is provided with trigger pip input end (INT), and this trigger pip input end (INT) is connected with the output terminal of described comparer (IC4);
Described microprocessor (4) also is provided with the first data terminal P2.1, the second data terminal P2.2, the sheet choosing holds CS, serial data output terminal SIMO, serial data input end SIMI to be connected with described wireless module (5) with clock signal terminal CLK.
6. flame detecting apparatus according to claim 1 is characterized in that: described wireless module (5) is a kind of radio-frequency (RF) transceiver of little power consumption;
Described wireless module (5) is provided with radio transmitting and receiving chip (6), this radio transmitting and receiving chip (6) is provided with the first data terminal GDO0, the second data terminal GDO2, chip selection signal end CSn, serial data input end SI, serial data output terminal SO and clock signal input terminal (SCLK), the described first data terminal GDO0, the second data terminal GDO2, chip selection signal end CSn, serial data input end SI, the first data terminal P2.1 that serial data output terminal SO and clock signal input terminal (SCLK) are provided with described microprocessor (4) respectively, the second data terminal P2.2, sheet choosing end CS, serial data output terminal SIMO, serial data input end SIMI is connected with clock signal terminal (CLK);
Described radio transmitting and receiving chip (6) also is provided with first wireless signal port (RF-N) and second wireless signal port (RF-P), described first wireless signal port (RF-N) is connected with an end of first inductance (L1), and other end string 13 electric capacity (C13) back of this first inductance (L1) is connected with described second wireless signal port (RF-P);
Behind described second wireless signal port (RF-P) string second inductance (L2), go here and there 14 electric capacity (C14) ground connection again, described first wireless signal port (RF-N) string 15 electric capacity (C15) back ground connection;
The other end of described first inductance (L1) also is connected with an end of the 3rd inductance (L3), other end string 16 electric capacity (C16) the back ground connection of the 3rd inductance (L3), the other end of described the 3rd inductance (L3) also is connected with an end of the 4th inductance (L4), other end string 17 electric capacity (C17) of the 4th inductance (L4) back ground connection, the other end of described the 4th inductance (L4) are also gone here and there 18 electric capacity (C18) back and are connected with antenna (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200552432U CN201681461U (en) | 2010-01-05 | 2010-01-05 | Wireless flame detector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010200552432U CN201681461U (en) | 2010-01-05 | 2010-01-05 | Wireless flame detector |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104036613A (en) * | 2014-06-30 | 2014-09-10 | 李先贵 | Automatic fire alarm system and method |
| CN104217526A (en) * | 2014-08-11 | 2014-12-17 | 江门市丰鸣达科技有限公司 | Fire early warning method and fire isolating method |
| CN104408862A (en) * | 2014-12-03 | 2015-03-11 | 北京百纳威尔科技有限公司 | Mobile terminal and smoke early warning method based on same |
| CN104655285A (en) * | 2013-11-21 | 2015-05-27 | 西南科技大学 | Ultraviolet flame detection controller |
| CN105698597A (en) * | 2016-03-30 | 2016-06-22 | 苏州科技学院 | Device for detecting cannon launching zero hour based on silicon photocell |
| CN110470401A (en) * | 2019-07-03 | 2019-11-19 | 深圳市景阳信息技术有限公司 | The method, apparatus and storage medium of thermal imaging camera overload protection |
| CN114913658A (en) * | 2022-05-06 | 2022-08-16 | 上海腾盛智能安全科技股份有限公司 | Wireless infrared fire detection system and method and electronic equipment |
-
2010
- 2010-01-05 CN CN2010200552432U patent/CN201681461U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655285A (en) * | 2013-11-21 | 2015-05-27 | 西南科技大学 | Ultraviolet flame detection controller |
| CN104036613A (en) * | 2014-06-30 | 2014-09-10 | 李先贵 | Automatic fire alarm system and method |
| CN104217526A (en) * | 2014-08-11 | 2014-12-17 | 江门市丰鸣达科技有限公司 | Fire early warning method and fire isolating method |
| CN104217526B (en) * | 2014-08-11 | 2017-01-25 | 江门市丰鸣达科技有限公司 | Fire early warning method and fire isolating method |
| CN104408862A (en) * | 2014-12-03 | 2015-03-11 | 北京百纳威尔科技有限公司 | Mobile terminal and smoke early warning method based on same |
| CN105698597A (en) * | 2016-03-30 | 2016-06-22 | 苏州科技学院 | Device for detecting cannon launching zero hour based on silicon photocell |
| CN110470401A (en) * | 2019-07-03 | 2019-11-19 | 深圳市景阳信息技术有限公司 | The method, apparatus and storage medium of thermal imaging camera overload protection |
| CN114913658A (en) * | 2022-05-06 | 2022-08-16 | 上海腾盛智能安全科技股份有限公司 | Wireless infrared fire detection system and method and electronic equipment |
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