CN113808371A - Gas leakage alarm device convenient to installation - Google Patents
Gas leakage alarm device convenient to installation Download PDFInfo
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- CN113808371A CN113808371A CN202111085592.8A CN202111085592A CN113808371A CN 113808371 A CN113808371 A CN 113808371A CN 202111085592 A CN202111085592 A CN 202111085592A CN 113808371 A CN113808371 A CN 113808371A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/004—Specially adapted to detect a particular component for CO, CO2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/0047—Specially adapted to detect a particular component for organic compounds
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital using a threshold to release an alarm or displaying means
Abstract
The invention discloses a gas leakage alarm device convenient to install, which comprises: the USB-to-TTL system comprises a USB-to-TTL circuit, a communication circuit, a vent control circuit, a power circuit, a main control module, a data detection module, a gas detection module, a storage circuit and a camera alarm circuit, wherein the main control module comprises a chip U6, the power circuit provides stable 5V and 3.3V power for the whole system, the USB-to-TTL circuit downloads data and burns programs, the communication circuit is connected with peripheral electronic equipment for data interaction, the vent control circuit can adjust ventilation according to gas concentration, the data detection and gas detection module is responsible for detecting various indexes, the storage circuit and the camera alarm circuit are peripheral security systems of an alarm, the USB-to-TTL system can quickly detect various gases and take pictures through a camera, the communication device and the electronic equipment feed back information, the vent can be opened when the alarm sounds, reduce the harm of harmful gas to human.
Description
Technical Field
The invention relates to the field of safety alarms, in particular to a gas leakage alarm device convenient to install.
Background
The past alarm can automatically alarm when the combustible gas detected exceeds the standard, and extinguishes fire by the water sprayed inside the alarm, the water sprayed is uncontrollable, even the phenomenon of misinformation sometimes occurs, for example, you cook at home with big fire, the alarm is triggered suddenly, the sprayed kitchen is filled with water everywhere, on the other hand, the gas detection range of the traditional alarm is small, and only CO and CH4 gas can be detected, and the detection reaction time is long.
Disclosure of Invention
The invention provides a gas leakage alarm device which has the advantages of higher detection speed, more datamation of detected gas and wider detection range and is convenient to install, aiming at the defects of the detection mode of the existing alarm.
The technical scheme adopted by the invention for solving the technical problems is as follows:
there is provided a gas leak alarm device convenient to install, comprising: USB changes TTL circuit, communication circuit, vent control circuit, power supply circuit, host system, data detection module, gaseous detection module, memory circuit, the warning circuit of making a video recording, host system includes chip U6, power supply circuit provides stable 5V and 3.3V power for entire system, USB changes TTL circuit and carries out the download of data and the burning record of procedure, communication circuit is connected with peripheral electronic equipment, carries out the data interaction, vent control circuit can be according to gas concentration regulation air volume, data detection, gaseous detection module are responsible for detecting each item index, memory circuit and warning circuit of making a video recording are the peripheral security system of alarm.
Further, the USB to TTL circuit includes a chip U3 and an interface USB1, pin 19 of the chip U3 is connected to a 3.3V power supply, capacitors CT1 and CT2 are connected in parallel and then disposed between the 3.3V power supply and ground, pin 16 of the chip U3 is connected to the base of a transistor QT3 through a resistor RT3, the emitter of the transistor QT3 is connected to the 3.3V power supply, pin 15 of the chip U3 is connected to the base of a transistor QT1 through a resistor RT2, the collector of the transistor QT1 is connected to the 3.3V power supply through a resistor RT1, the emitter is connected to the base of the transistor QT3 through a resistor RT3, pin 8 of the chip U3 is grounded, pins CT5 and CT5 are grounded through capacitors 3 and CT5, pins 3 and 4 are connected to the first 4 of pin 3, 2, pin 10 of the USB interface, the second lead is connected to the ground of a crystal Y2, pin 56 is connected to the capacitor CT 841, and the interface 82865 is connected to the capacitor 5, the pin 5 is grounded, the model of the chip U3 is CH340T, and the model of the USB1 is USB/TTL.
Further, the communication circuit includes chips U1, U2, and an interface J1, pin 1 of the chip U1 is grounded via a resistor RE3 and a capacitor CE3, a first lead of pin 2 is grounded via a resistor RE4 and a capacitor CE3, a second lead is grounded via a resistor RE4 and an inductor L1 to a 3.3V power supply, pins 3 and 6 of the chip U1 are grounded via resistors RE7 and RE8 and a capacitor CE5, respectively, pin 5 is grounded via a capacitor CE6, pins 10, 11 and A, B are grounded, the model of the chip U A, B is HR A, B, pin 1 of the chip U A, B is grounded via a polar capacitor CE A, B, pin 2 of the polar capacitor CE A, B is grounded, pins 2, 11, 17, 21 and 22 of the chip U A, B are grounded, pins 3, 4, 9 and 10 are grounded via pull-up resistors RE A, B, 3.3V 3V, power supply, pin 14V 19, CE 3V 3, 20V 3, and CE 23V 25, 3V 3, 20V 3, 3V 3, 20, and CE 3V 3, and b are grounded via pull-3, respectively, CE4 is grounded, crystal oscillator Y1 is arranged between pins 23 and 24 of the chip U2, pins 12, 13, 16, 17, 26 and 27 of the chip U2 are respectively connected with pins 6, 3, 2, 1, 9 and 12 of the chip U1, the model of the chip U2 is ENC28J60, filter capacitors C1-C5 are connected in parallel and then arranged between a 3.3V power supply and the ground, the pin 6 of the interface J1 is connected with a 5V power supply, the pin 5 is grounded, and the model of the interface J1 is ATK-ESP 8266.
Furthermore, the vent control circuit comprises chips U4, U7, an interface UG1 and a relay JDQ, pins 4 and 7 of the chip U4 are grounded, pin 5 is connected with a 5V power supply through a resistor RM2, pin 8 is grounded through a resistor RM3, pins 1 and 11 are respectively connected with a motor MO1 through capacitors CM3 and CM4, pin 2 is connected with pin 10 of the chip U4 through a motor MO1, pin 6 is connected with a 9V power supply, capacitors CM1 and CM2 are connected in parallel and then arranged between the 9V power supply and the ground, pins 4 and 7 of the chip U7 are grounded, pin 5 is connected with the 5V power supply through a resistor RM6, pin 8 is grounded through a resistor RM7, pins 1 and 11 are respectively connected with the motor MO 7 and CM8 through capacitors RM2, pin 2 is connected with pin 10 of the chip U3687458 through a motor MO 7, pin 6 is connected with the 9V power supply, pins CM 72 and CM5 are connected in parallel and then arranged between the ground, the power supply U5 and the interface UG 18272 of the chip U3600 and the model 5, the negative pole is grounded, the type of interface UG1 is TEMT6000, relay JDQ includes triode QK1, the first lead wire of triode QK1 collecting electrode is through JDQ ground connection, the second lead wire is through diode DK1, resistance RK1 ground connection, switch K1 of JDQ sets up the both ends at H1, the type of relay JDQ is HK 4100F.
Further, the power circuit includes chips U5, U8, U9, and an interface J2, pin VCC of the interface J2 is connected to a 9V power supply through a switch S1, the remaining pins of the interface J2 are grounded, pin 3 of the chip U5 is connected to the 9V power supply, pin 1 is grounded, capacitors C9 and C7 are connected in parallel and disposed between the 9V power supply and ground, pin 2 of the chip U5 is connected to the 3.3V power supply, capacitors C6 and C8 are connected in parallel and disposed between the 3.3V power supply and ground, pin 3 of the chip U8 is connected to the 9V power supply, pin 1 is grounded, capacitors C11 and C13 are connected in parallel and disposed between the 9V power supply and ground, pin 2 of the chip U8 is connected to the 5V power supply, capacitors C10 and C12 are connected in parallel and disposed between the 5V power supply and ground, pin 3 of the chip U9 is connected to the 9V power supply, pin 1 is grounded, capacitors C15, C17 and C17 are connected in parallel and the chip U9, capacitors C16 and C14 are connected in parallel and then arranged between a 3.3V power supply and the ground, diodes LED1, LED2 and LED3 are arranged between the 3.3V power supply, a 5V power supply, a 6V power supply and the ground after passing through resistors R1, R2 and R3, the models of chips U5 and U8 are LM1084, and the model of chip U9 is LM 7806.
Further, the data detection module comprises chips U10, U12, U13, a display screen LCD1 and an interface P1, wherein pin 2 of the chip U10 is grounded through a resistor RQ1 and a diode DQ1, pin 5 is grounded, pin 6 is connected with a 5V power supply, pins 7 and 8 are respectively connected with volume reduction and keying of the microphone, the model of the chip U10 is JQ8900-16P, pin 1 of the chip U12 is connected with a 5V power supply, pins 2 and 4 are respectively connected with a 3.3V power supply through a resistor RAM2 and a RAM1, pin 3 is grounded, a capacitor C20 is arranged between the 5V power supply and the ground, the model of the chip U12 is AM2321, pins 1, 2 and 3 are grounded, pins 8, 9 and 10 of the display screen LCD1 are respectively connected with the 5V power supply, pin 2 of the chip U686u 8 is grounded, pin 4 is connected with the 3.3V power supply, pin 8 is grounded through a resistor R6, pin 7 is connected with a resistor R3527, and the pin 7 of the chip U366 is respectively connected with the interface P367 and the pin 7 of the chip P366, 1, the model of the chip U13 is SN65HVD230, and the model of the interface P1 is Header 2.
Further, the gas detection module comprises a chip U11, motors M1-M3 and an operational amplifier UC1, pins 6 and 1 of the chip U11 are connected with a 5V power supply, pins 2 and 4 are grounded, the model of the chip U11 is GP2Y1014AU, pins 1, 2 and 3 of the motors M1 and M2 are connected with the 5V power supply, pin 5 is grounded through resistors RH3 and RCO3 respectively, pin 4 is grounded through a sliding rheostat RH2 and RCO2 respectively, the models of 2 and M are MQ5 and MQ7, pin 2 of the motor M3 is connected with the 6V power supply, pins 1 and 3 are connected with the 6V power supply through resistors RC3 and R12, pin 5 is grounded through a resistor RC4, pin 4 and pin 6 is connected with UC 3 of UC1, pin 4 of the operational amplifier UC1 is grounded, pin 1 is connected with the operational amplifier RC 1 through an adjustable resistor RC 1, pin 5 of the operational amplifier UC1 is connected with a first pin 365 of the operational amplifier UC1, a lead wire of the RC5 is connected with a second power supply, and a lead wire of the UC 72, the model of the motor M3 is MG811, and the model of the operational amplifier UC1 is CA 3140A.
Further, the memory circuit comprises chips U15, U16 and SD card, wherein pin 1 of the chip U15 is connected with a 3.3V power supply through a resistor R13, pins 3, 7 and 8 are connected with a 3.3V power supply, pin 4 is grounded, a capacitor C21 is arranged between the 3.3 power supply and the ground, the model of the chip U15 is W25X64, pins 1 and 7 of the chip U16 are grounded, pins 2, 3 and 4 are respectively connected with the 3.3V power supply through pull-up resistors RB1, RB2 and RB3, pins 6 and 8 are connected with the 3.3V power supply, pin 5 is grounded through a resistor RB4, capacitors CB1 and CB2 are connected in parallel and then arranged between the 3.3V power supply and the ground, pin U16 is model BMP280, pins 1, 2, 5 and 8 of the SD card are respectively connected with RS1, RS 6, RS3, RS4 is connected with the 3.3V power supply, pin 3.6 is connected with the ground, and the capacitor CS7378 is arranged between the power supply and the ground.
Further, the camera alarm circuit comprises a chip U14, an interface FPC1 and a buzzer SOT, wherein a pin 1 of the chip U14 is connected with a 5V power supply, a pin 3 is grounded, a pin 2 is connected with a pin 21 of the chip U6, the model of the chip U14 is HC-SR505, diodes D1-D6 are respectively connected with pins 59, 60, 63, 64, 65 and 66 of the chip U6 through resistors R4, R5, R6, R8, R10 and R11, pins 1-8 of the interface PC1 are respectively connected with pins 114, 115, 116, 117, 118, 119, 122, 123, 9-14 of the chip U6 are respectively connected with pins 133, 134, 77, 78, 70 and 69 of the chip U5, a pin 15 is grounded, a pin 16 is connected with a 5V power supply, the model of the interface FPC1 is a VO7076, the positive pole of the buzzer SQT is connected with a power supply, the negative pole Q24 of the buzzer alarm 57324 is connected with a pin 1 of the triode 1, the collector of the triode Q1 is grounded, and the type of the buzzer alarm is SOT 23.
Further, the pin of the chip U6 is grounded via a resistor RU1, pins 72, 108, 144, 39, 17, 52, 62, 84, 95, 121, 131, and 30 are connected to a 3.3V power supply, pins 107, 38, 16, 51, 61, 83, 94, 120, 130, and 31 are grounded, pin 106 is grounded via a capacitor CU7, pins 32 and 33 are connected to a 3.3 power supply, capacitors C18 and C19 are connected in parallel and then disposed between the 3.3V power supply and ground, a filter capacitor CU8-CU19 is connected in parallel and then disposed between the 3.3V power supply and ground, pins 101 and 102 of the chip U6 are connected to pins 4 and 3 of the chip U3, pins 33 and 34 are connected to pins 3 and 4 of the chip U10, pins 36 and 37 are connected to pins 3, 4 of the interface J1, pins 41, 42, 43, and 44 are connected to pins 5, 7, 2, 1, 103, 104, and 105, 105 d, and 105 of the card are connected to pins 109 and 364 of the interface J1, and 23, respectively, 2, pins 136 and 137 are respectively connected with pins 3 and 4 of the U4, pins 73 to 76 are respectively connected with pins 1, 6, 2 and 5 of the chip U15, pins 96 and 97 are respectively connected with pins 6 and 5 of the display screen LCD1, pins 98, 99, 111, 112, 113, 124, 125 and 126 are respectively connected with pins 6, 7, 8, 9, 10, 3, 4 and 5 of the chip U2, pins 8, 9, 23 and 24 of the chip U6 are respectively connected with pins 1 and 2 of crystal oscillators Y3 and Y4, pin 6 is connected with a battery BAT1 through a diode 2, pin 2 is connected with a switch S2, pins 85, 86, 20 and 22 are respectively connected with pins 3 and 9 of the chips U4 and U7, pins 10 and 11 are respectively connected with pins 2, 4, pins 13 and 18 of the chip U12, pins 13 and 18 are respectively connected with pins 3, 4, 13 and 18 of the motor M636 and 68614 are respectively connected with pins 3527, 19 of the motor U12 and 3618 through resistors RCO1 and RH 1.
Compared with the prior art, the invention has the beneficial effects that:
1. the gas detection device is provided with a plurality of gas detection modules, and can detect a plurality of gases simultaneously;
2. the display screen circuit is provided, detected data can be fed back on the display screen through the master control, and the detected data are clearer;
3. the gas leakage alarm device is provided with a vent circuit, when the gas leakage alarm device convenient to install detects that certain gas composition exceeds the standard, the gas composition can be analyzed, and a reasonable mode is adopted to eliminate secondary alarm, for example, when the CO2 composition exceeds the standard, the vent can be opened, and redundant CO2 gas is discharged;
4. the alarm device is provided with a communication circuit, and when the alarm device gives an alarm, the alarm device not only can give an alarm, but also can feed back information with the connected electronic equipment through the communication circuit.
Drawings
FIG. 1 is a schematic diagram of a schematic structure of a USB-to-TTL circuit according to the present invention;
FIG. 2 is a schematic diagram of the communication circuit of the present invention;
FIG. 3 is a schematic diagram of the schematic structure of the vent control circuit of the present invention;
FIG. 4 is a schematic diagram of the schematic structure of the power circuit of the present invention;
FIG. 5 is a schematic diagram of the schematic structure of the data detection module of the present invention;
FIG. 6 is a schematic diagram of the gas detection module of the present invention;
FIG. 7 is a schematic diagram of the memory circuit of the present invention;
FIG. 8 is a schematic diagram of the principle structure of the camera alarm circuit of the present invention;
fig. 9 is a schematic structural diagram of a main control module of the present invention.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. The preferred embodiments of the present invention are shown in the drawings, but the present invention may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The invention is described in detail below with reference to the accompanying drawings.
In embodiment 2, as shown in fig. 1, the USB to TTL circuit includes a chip U3 and an interface USB1, a pin 19 of the chip U3 is connected to a 3.3V power supply, capacitors CT1 and CT2 are connected in parallel and then disposed between the 3.3V power supply and ground, a pin 16 of the chip U3 is connected to a base of a transistor QT3 through a resistor RT3, an emitter of the transistor QT3 is connected to the 3.3V power supply, a pin 15 of the chip U3 is connected to a base of a transistor QT1 through a resistor RT2, a collector of the transistor 1 is connected to the 3.3V power supply through a resistor RT 5, an emitter of the transistor QT3 through a resistor RT3, a pin 8 of the chip U3 is grounded, pins 5 and 9 are respectively connected to ground through capacitors CT3 and CT5, pins 5733 and 5734 are respectively connected to a first lead of pins 3, 2 and 10, a second lead of the USB interface is connected to ground through a capacitor CT4, a second lead of the Y2, a pin 69556 of the USB interface is connected to ground through a capacitor QT 5, the pin 5 is grounded, the model of the chip U3 is CH340T, and the model of the USB1 is USB/TTL.
In this embodiment, the USB data downloading circuit uses a standard CH340T chip to convert USB to TTL, and mainly performs data interactive downloading and program burning.
In embodiment 3, as shown in fig. 2, the communication circuit includes chips U1, U2, and an interface J1, pin 1 of the chip U1 is grounded via a resistor RE3 and a capacitor CE3, a first lead of pin 2 is grounded via a resistor RE4 and a capacitor CE3, a second lead is grounded via a resistor RE4 and an inductor L1 to a 3.3V power supply, pins 3 and 6 of the chip U1 are grounded via resistors RE7, RE8 and a capacitor CE5, pin 5 is grounded via a capacitor CE6, pins 10, 11 and A, B are grounded, the model of the chip U A, B is HR A, B, pin 1 of the chip U A, B is grounded via a polar capacitor CE A, B, pin 2 of the polar capacitor CE A, B is grounded, pins 2, 11, 17, 21 and 22 of the chip U A, B are grounded, pins 3, 4, 9 and 10 are grounded via pull-up resistors RE A, B, RE 3.72, power supply pin 72, power supply pin 19, power supply pin 19.20, and power supply pin 19.3.3V 3, CE4 is grounded, crystal oscillator Y1 is arranged between pins 23 and 24 of the chip U2, pins 12, 13, 16, 17, 26 and 27 of the chip U2 are respectively connected with pins 6, 3, 2, 1, 9 and 12 of the chip U1, the model of the chip U2 is ENC28J60, filter capacitors C1-C5 are connected in parallel and then arranged between a 3.3V power supply and the ground, the pin 6 of the interface J1 is connected with a 5V power supply, the pin 5 is grounded, and the model of the interface J1 is ATK-ESP 8266.
In this embodiment, the communication circuit adopts the ENC28J60 chip, and mainly provides wired network communication, provides a good network environment, and can transmit data through a network in time.
In this embodiment, the vent is controlled by a motor, if the gas composition is abnormal, the motor operates to enlarge or completely open the vent for ventilation, and if the gas composition is normal, the vent is properly closed.
In this embodiment, the circuit is powered by a 9V adapter. The circuit has 3.3V, 5V, 6V and 9V power supplies due to the diversity of circuit functions. The LM1084 is used for power supply conversion voltage stabilization.
In this embodiment, the data detection module mainly detects the temperature and humidity, the illuminance, and quantitatively analyzes the gas detected by the gas detection module, and feeds back the detection result on the display screen.
In embodiment 7, as shown in fig. 6, the gas detection module includes a chip U11, a motor M1-M3, and an operational amplifier UC1, where pins 6 and 1 of the chip U11 are connected to a 5V power supply and pins 2 and 4 are grounded, a model of the chip U11 is GP2Y1014AU, pins 1, 2 and 3 of the motors M1 and M2 are connected to a 5V power supply, pin 5 is grounded via resistors RH3 and RCO3, pin 4 is grounded via slide rheostat RH2 and RCO2, types of the MI and M2 are MQ5 and MQ7, pin 2 of the motor M3 is connected to a 6V power supply and pins 1 and 3 are connected to a 6V power supply via resistors RC3 and R12, pin 5 is grounded via resistor RC4, pin 4 and 6 is connected to pin 3 of the operational amplifier UC1, pin 4 of the operational amplifier UC1 is grounded, pin 1 is connected to the power supply via the adjustable resistor RC 8672, pin 4 is connected to a power supply, a second pin 1 of the operational amplifier 1 is connected to a second RC 1 and a second RC 1 is connected to ground via a resistor RC 1 and a second RC 1, the model of the motor M3 is MG811, and the model of the operational amplifier UC1 is CA 3140A.
In this embodiment, gas detection mainly detects CO, CO2, PM2.5 and common combustible gas, mainly carries out fire prevention, can detect and show indoor carbon monoxide content, and when surpassing safety standard, the system can remind indoor personnel to leave indoor or carry out safety inspection through modes such as pronunciation, buzzer warning, connection customer end, and in time open the system vent, when the composition seriously exceeds standard, definable self-alarm fire control.
In this embodiment, the detected data may be stored with big data, and an SD card is used, which has a large capacity and is detachable, and interacts with the electronic device through an SPI protocol.
In this embodiment, the camera is mainly arranged at the entrance, the working time period can be defined, image acquisition and recognition are performed, if abnormal conditions are found, alarm reminding can be performed, and the buzzer is mainly used for giving an alarm prompt.
In embodiment 10, as shown in fig. 9, the pin of the chip U6 is grounded via the resistor RU1, the pins 72, 108, 144, 39, 17, 52, 62, 84, 95, 121, 131, 30 are connected to the 3.3V power supply, the pins 107, 38, 16, 51, 61, 83, 94, 120, 130, 31 are grounded, the pin 106 is grounded via the capacitor CU7, the pins 32, 33 are connected to the 3.3 power supply, the capacitors C18, C19 are connected in parallel and then disposed between the 3.3V power supply and the ground, the filter capacitors CU8-CU19 are connected in parallel and then disposed between the 3.3V power supply and the ground, the pins 101, 102 of the chip U6 are connected to the pins 4, 3, 33, 34 of the chip U3, respectively, the pins 33, 34 are connected to the pins 3, 4 of the chip U10, the pins 36, 37 are connected to the pins 3, 4, 41, 42, 43, 44 of the interface J1 are connected to the pins 5, 7, SD 2, 104, 1, 584, 105, 25, 105, and 105 of the chip J1, respectively, 109 is respectively connected with pins 3 and 2 of the interface SWD1, pins 136 and 137 are respectively connected with pins 3 and 4 of the U4, pins 73-76 are connected with pins 1, 6, 2 and 5 of the chip U15, pins 96 and 97 are respectively connected with pins 6 and 5 of the display screen LCD1, pins 98, 99, 111, 112, 113, 124, 125 and 126 are respectively connected with pins 6, 7, 8, 9, 10, 3, 4 and 5 of the chip U2, pins 8, 9, 23 and 24 of the chip U6 are respectively connected with pins 1 and 2 of crystal oscillators Y3 and Y4, pin 6 is connected with a battery BAT1 through a diode DU2, pin 2 is connected with a switch S2, pins 85, 86, 20 and 22 are respectively connected with pins 3 and 9 of chips U4 and U7, pins 10 and 11 are respectively connected with pins 2 and 4 of the chip U12, pins 13 and 18 are respectively connected with motors M2 and M1 through resistors RCO1 and RH1, pin 14 is connected with pin 6 of the motor M3, and the model of the chip U6 is STM32F407ZET 6.
In this embodiment, the chip frequency of the main control chip CAN reach 72MHz, and the main control chip has communication interfaces such as CAN, I2CSPI, USB, serial ports, and the like, and the peripheral device CAN be connected to control devices such as DMA, motor, various sensors, and the like through the IO port, and the filter capacitor of the MCU mainly provides a stable power supply for the chip to work, and each filter capacitor sends each power interface corresponding to this chip, so as to filter power supply interference.
The working principle of the invention is as follows:
the alarm is always in a standby state, when the gas detection module and the data detection module detect that certain gas components exceed the standard, the main control module transmits data with peripheral electronic equipment through the communication circuit, meanwhile, the camera can take pictures or video of real-time conditions in a room and transmit data to the electronic equipment, an operator can remotely control the conveniently-installed gas leakage alarm device through the electronic equipment and take specified measures to reduce loss, for example, when gas components are harmless, the vent can be opened to discharge redundant gas, when the condition is more complicated, the alarm circuit can give an alarm in time, and the evacuation of people around is prompted, the data detection module and the storage circuit can record the smoke data in a room for a long time, and a user can take measures early through data analysis, so that the harm of gas leakage to people is reduced from the source.
The technical features mentioned above are combined with each other to form various embodiments which are not listed above, and all of them are regarded as the scope of the present invention described in the specification; also, modifications and variations may be suggested to those skilled in the art in light of the above teachings, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A gas leakage alarm device convenient to installation, characterized by, includes: USB changes TTL circuit, communication circuit, vent control circuit, power supply circuit, host system, data detection module, gaseous detection module, memory circuit, the warning circuit of making a video recording, host system includes chip U6, power supply circuit provides stable 5V and 3.3V power for entire system, USB changes TTL circuit and carries out the download of data and the burning record of procedure, communication circuit is connected with peripheral electronic equipment, carries out the data interaction, vent control circuit can be according to gas concentration regulation air volume, data detection, gaseous detection module are responsible for detecting each item index, memory circuit and warning circuit of making a video recording are the peripheral security system of alarm.
2. The gas leakage alarm device convenient to install according to claim 1, wherein the USB-to-TTL circuit comprises a chip U3 and an interface USB1, a pin 19 of the chip U3 is connected with a 3.3V power supply, a pin 16 of the chip U3 is connected with a base of a transistor QT3 through a resistor RT3, an emitter of the transistor QT3 is connected with a 3.3V power supply, a pin 15 of the chip U3 is connected with a base of a transistor QT1 through a resistor RT2, a collector of the transistor QT1 is connected with a 3.3V power supply through a resistor RT1, an emitter is connected with a base of the transistor QT3 through a resistor RT3, a pin 8 of the chip U3 is grounded, pins 5 and 9 are grounded through capacitors CT3 and CT5 respectively, pins 3 and 4 are connected with pins 3 and 2 of the USB interface respectively, a first lead wire of the pin 10 is grounded through a capacitor 4, a second lead wire is connected with a pin 2 of a crystal Y2, and a capacitor 5 of the crystal Y2 is grounded through a capacitor CT2, pin 1 of the interface USB1 is connected with a 5V power supply, pin 5 is grounded, the model of the chip U3 is CH340T, and the model of the USB1 is USB/TTL.
3. The gas leakage alarm device convenient to install according to claim 1, wherein the communication circuit comprises a chip U1, a chip U2 and an interface J1, pin 1 of the chip U1 is grounded through a resistor RE3 and a capacitor CE3, a first lead of pin 2 is grounded through a resistor RE4 and a capacitor CE3, a second lead is grounded through a resistor RE4 and an inductor L1 to a 3.3V power supply, pins 3 and 6 of the chip U1 are grounded through resistors RE7, RE8 and a capacitor CE5 respectively, pin 5 is grounded through a capacitor CE6, pins 10, 11 and A, B are grounded, the model of the chip U1 is 36HR 58, pin 1 of the chip U2 is grounded through a resistor RE1 of a polar capacitor CE2, pin 2 of the polar capacitor CE2 is grounded, pins 2, 11, 17, 21 and 22 of the chip U2 are grounded, pins 3, 4, 369, 3610 are grounded through pull-up resistors RE 72, RE 72, RE2 and RE2 are grounded through resistors 3614 and V3614, pins 15, 19, 20 and 25 are connected with a 3.3V power supply, pins 23 and 24 are respectively grounded through capacitors CE7 and CE4, a crystal oscillator Y1 is arranged between the pins 23 and 24 of the chip U2, pins 12, 13, 16, 17, 26 and 27 of the chip U2 are respectively connected with pins 6, 3, 2, 1, 9 and 12 of the chip U1, the model of the chip U2 is ENC28J60, filter capacitors C1-C5 are connected in parallel and then arranged between the 3.3V power supply and the ground, the pin 6 of the interface J1 is connected with a 5V power supply, the pin 5 is grounded, and the model of the interface J1 is ATK-8266.
4. The gas leakage alarm device easy to install as claimed in claim 1, wherein said vent control circuit comprises chip U4, U7, interface UG1, relay JDQ, pins 4, 7 of said chip U4 are grounded, pin 5 is connected to 5V power supply via resistor RM2, pin 8 is grounded via resistor RM3, pins 1, 11 are connected to motor MO1 via capacitors CM3, CM4 respectively, pin 2 is connected to pin 10 of said chip U4 via motor MO1, pin 6 is connected to 9V power supply, capacitors CM1, CM2 are connected in parallel and then set between 9V power supply and ground, pins 4, 7 of said chip U7 are grounded, pin 5 is connected to 5V power supply via resistor RM6, pin 8 is grounded via resistor RM7, pins 1, 11 are connected to motor MO2 via capacitors CM7, CM 23, pin 582 is connected to pin 10 of said chip U2 via motor MO2, pin 6 is connected to power supply 9V power supply, CM 28 is connected to ground and parallel and ground after capacitors CM 9V 639, the model of chip U4, U7 are LMD18200, the positive pole of interface UG1 connects the 5V power, and the negative pole ground connection, the model of interface UG1 is TEMT6000, relay JDQ includes triode QK1, the first lead wire of triode QK1 collecting electrode is through JDQ ground connection, and the second lead wire is through diode DK1, resistance RK1 ground connection, switch K1 of JDQ sets up the both ends at H1, the model of relay JDQ is HK 4100F.
5. An easily installable gas leakage alarm device according to claim 1, wherein the power circuit comprises chips U5, U8, U9 and an interface J2, the VCC of the pin of the interface J2 is connected with 9V power supply through a switch S1, the rest pins of the interface J2 are grounded, the 3 pin of the chip U5 is connected with 9V power supply, the 1 pin is grounded, capacitors C9 and C7 are connected in parallel and are arranged between 9V power supply and ground, the 2 pin of the chip U5 is connected with 3.3V power supply, capacitors C6 and C8 are connected in parallel and are arranged between 3.3V power supply and ground, the 3 pin of the chip U8 is connected with 9V power supply, the 1 pin is grounded, capacitors C11 and C13 are connected in parallel and are arranged between 9V power supply and ground, the 2 pin of the chip U8 is connected with 5V power supply, capacitors C10 and C12 are connected in parallel and are arranged between 5V power supply and ground, the 3 pin of the chip U9 and the ground, the capacitors C15 and C17 are connected in parallel and then are arranged between a 9V power supply and the ground, a pin 2 of the chip U9 is connected with a 6V power supply, the capacitors C16 and C14 are connected in parallel and then are arranged between a 3.3V power supply and the ground, the diodes LED1, LED2 and LED3 are arranged between the 3.3V power supply, the 5V power supply, the 6V power supply and the ground after passing through the resistors R1, R2 and R3, the models of the chips U5 and U8 are LM1084, and the model of the chip U9 is LM 7806.
6. The gas leakage alarm device convenient for installation according to claim 1, wherein the data detection module comprises chips U10, U12, U13, a display screen LCD1 and an interface P1, pin 2 of the chip U10 is grounded through a resistor RQ1 and a diode DQ1, pin 5 is grounded, pin 6 is connected with a 5V power supply, pins 7 and 8 are respectively connected with a volume reduction key and an addition key of a microphone, the model of the chip U10 is JQ8900-16P, pin 1 of the chip U12 is connected with the 5V power supply, pins 2 and 4 are respectively connected with the 3.3V power supply through resistors RAM2 and RAM1, pin 3 is grounded, a capacitor C20 is arranged between the 5V power supply and ground, the model of the chip U12 is AM2321, pin 1, pin 2, pin 3, pin 8, 9 and 10 of the display screen LCD1 is grounded, pin 2, pin 4 of the chip U13 is grounded, pin 3.3V 3 and pin 8 is connected with the 5V power supply through a resistor 7, pin 7 is connected with pin 6 of the chip U13 through a resistor R9, pins 6 and 7 are respectively connected with pins 2 and 1 of the interface P1, the model of the chip U13 is SN65HVD230, and the model of the interface P1 is Header 2.
7. The gas leakage alarm device convenient to install according to claim 1, wherein the gas detection module comprises a chip U11, motors M1-M3, and an operational amplifier UC1, wherein pins 6 and 1 of the chip U11 are connected to a 5V power supply, pins 2 and 4 are grounded, the model of the chip U11 is GP2Y1014AU, pins 1, 2 and 3 of the motors M1 and M2 are connected to a 5V power supply, pin 5 is grounded through resistors RH3 and RCO3, pin 4 is grounded through a slide rheostat RH2 and RCO2, the models of MI and M2 are 5 and MQ7, pin 2 of the motor M3 is connected to a 6V power supply, pin 1 and pin 3 are connected to a 6V power supply through a resistor RC3 and an adjustable resistor R12, pin 5 is grounded through a resistor RC4, pin 4 and pin 6 are connected to pin 3 of the operational amplifier UC1, pin 4 of the operational amplifier 1 is grounded through a resistor RC5 and pin 865 is connected to a resistor 5, the first lead of pin 2 is grounded through a resistor RC2, the second lead is connected with pin 6 of the operational amplifier UC1, the model of the motor M3 is MG811, and the model of the operational amplifier UC1 is CA 3140A.
8. The gas leakage alarm device convenient to install according to claim 1, wherein the storage circuit comprises a chip U15, U16 and SD card, a pin 1 of the chip U15 is connected with a 3.3V power supply through a resistor R13, pins 3, 7 and 8 are connected with a 3.3V power supply, a pin 4 is grounded, a capacitor C21 is arranged between the 3.3 power supply and the ground, a model of the chip U15 is W25X64, pins 1 and 7 of the chip U16 are grounded, pins 2, 3 and 4 are respectively connected with a 3.3V power supply through pull-up resistors RB1, RB2 and RB3, pins 6 and 8 are connected with a 3.3V power supply, a pin 5 is grounded through a resistor RB4, capacitors CB1 and SD 2 are connected in parallel and then arranged between the 3.3V power supply and the ground, a pin 596U 2 of the chip U16 80, pins 1, 2, 5 and RS 638 of the chip U638 are respectively connected with a power supply, RS 638, RS3, RS 3.3V power supply, RS 633, RS 3V power supply and RS 6 and RS 636 are connected with RS 636, the capacitor CSD1 is provided between the 3.3V supply and ground.
9. The gas leakage alarm device convenient for installation according to claim 1, wherein the camera alarm circuit comprises a chip U14, an interface FPC1 and a buzzer SOT, wherein pin 1 of the chip U14 is connected with a 5V power supply, pin 3 is grounded, pin 2 is connected with pin 21 of the chip U6, the model of the chip U14 is HC-SR505, the diodes D1-D6 are respectively connected with pins 59, 60, 63, 64, 65 and 66 of the chip U6 through resistors R4, R5, R6, R8, R10 and R11, pins 1-8 of the interface PC1 are respectively connected with pins 114, 115, 116, 117, 118, 119, 122 and 123 of the chip U6, pins 9-14 of the chip U6 are respectively connected with pins 133, 134, 77, 78, 70, 69 and 15 of the chip U6 are grounded, pin 16 is connected with a power supply, pin 7076 of the interface U1 is connected with a positive pole VO of the buzzer VO 76 and the buzzer VO 76 is connected with the positive pole V of the chip U638, the negative electrode is connected with an emitting electrode of a triode Q1, the base electrode of the triode Q1 is connected with a pin 49 of the chip U6 through a resistor R14, the collector electrode of the triode Q1 is grounded, and the type of the buzzer alarm is SOT 23.
10. A gas leakage alarm device easy to install as claimed in claim 1, wherein the pin of the chip U6 is grounded through a resistor RU1, the pins 72, 108, 144, 39, 17, 52, 62, 84, 95, 121, 131, 30 are connected to 3.3V power, the pins 107, 38, 16, 51, 61, 83, 94, 120, 130, 31 are grounded, the pin 106 is grounded through a capacitor CU7, the pins 32, 33 are connected to 3.3 power, the capacitors C18, C19 are connected in parallel and then are disposed between 3.3V power and ground, the filter capacitors CU8-CU19 are connected in parallel and then disposed between 3.3V power and ground, the pins 101, 102 of the chip U6 are connected to pins 4, 3 of the chip U3, the pins 33, 34 are connected to pins 3, 4 of the chip U10, the pins 36, 37 are connected to pins 3, 4, 41, 42, 43, 44 of the interface J1, the pins SD 7, SD 2 of the interface J1, SD 2, and the interface card, 1, pins 103 and 104 are respectively connected to pins 1 and 4 of the chip U13, pins 105 and 109 are respectively connected to pins 3 and 2 of the interface SWD1, pins 136 and 137 are respectively connected to pins 3 and 4 of the U4, pins 73 to 76 are connected to pins 1, 6, 2 and 5 of the chip U15, pins 96 and 97 are respectively connected to pins 6 and 5 of the display LCD1, pins 98, 99, 111, 112, 113, 124, 125 and 126 are connected to pins 6, 7, 8, 9, 10, 3, 4 and 5 of the chip U2, pins 8, 9, 23 and 24 of the chip U6 are respectively connected to pins 1 and 2 of crystal oscillators Y3 and Y4, pin 6 is connected to battery BAT1 via a diode DU2, pin 2 is connected to a switch S2, pins 85, 86, 20 and 22 are respectively connected to pins 3 and 9 of the chip U4 and U7, pins 10 and 11 are respectively connected to pins 3 and 9, 11 of the chip U12, RH2, RH3 and 3, 2 of the motor RCM 3918 and 3, 3 and 3, 2 are respectively connected to the motor via a resistor 3 and 3 of the resistor 3 of the chip U4, M1, pin 14 connects pin 6 of the motor M3, the model number of the chip U6 is STM32F407ZET 6.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551199A (en) * | 2016-02-25 | 2016-05-04 | 中南林业科技大学 | Multifunctional timing monitoring and alarming method for kitchen |
| CN105701985A (en) * | 2016-01-18 | 2016-06-22 | 南阳师范学院 | Combustion gas leakage alarm control system |
| CN108226634A (en) * | 2018-03-15 | 2018-06-29 | 衢州市江氏电子科技有限公司 | A kind of electronic soft label detection of characteristic parameters instrument |
| CN109544853A (en) * | 2019-01-04 | 2019-03-29 | 西南科技大学 | A kind of smog coal gas detection method and detection system |
| CN210154719U (en) * | 2019-03-27 | 2020-03-17 | 沈阳惠圣智讯科技有限公司 | Signal preprocessing circuit for sound wave temperature measurement |
-
2021
- 2021-09-16 CN CN202111085592.8A patent/CN113808371A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105701985A (en) * | 2016-01-18 | 2016-06-22 | 南阳师范学院 | Combustion gas leakage alarm control system |
| CN105551199A (en) * | 2016-02-25 | 2016-05-04 | 中南林业科技大学 | Multifunctional timing monitoring and alarming method for kitchen |
| CN108226634A (en) * | 2018-03-15 | 2018-06-29 | 衢州市江氏电子科技有限公司 | A kind of electronic soft label detection of characteristic parameters instrument |
| CN109544853A (en) * | 2019-01-04 | 2019-03-29 | 西南科技大学 | A kind of smog coal gas detection method and detection system |
| CN210154719U (en) * | 2019-03-27 | 2020-03-17 | 沈阳惠圣智讯科技有限公司 | Signal preprocessing circuit for sound wave temperature measurement |
Non-Patent Citations (3)
| Title |
|---|
| ELEVENWU_BOY: "STM32F407开发板电路原理图免费下载", 《电子发烧友》 * |
| 佚名: "电机驱动芯片LMD18200原理及应用", 《电子发烧友》 * |
| 秋波: "无线应变传感器检测分系统协调器的研究与实现", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
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