CN204359653U

CN204359653U - The comprehensive family measuring instrument of a kind of PM2.5

Info

Publication number: CN204359653U
Application number: CN201520023143.4U
Authority: CN
Inventors: 罗翱天
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-01-14
Filing date: 2015-01-14
Publication date: 2015-05-27
Anticipated expiration: 2025-01-14

Abstract

The utility model relates to the comprehensive family measuring instrument of a kind of PM2.5, comprise: outer containment vessel, surface-mounted integrated circuit is provided with in outer containment vessel, the front of outer containment vessel is provided with LCDs, hummer, master switch button, master switch key indicator lamp and alarm lamp, LCDs is arranged on the centre position of outer containment vessel, the below of LCDs is provided with perpetual calendar clock chip regulating key, the left side of LCDs is provided with master switch button, the side of master switch button is provided with master switch key indicator lamp, the right side of LCDs is provided with hummer, the side of hummer is provided with alarm lamp, the side of outer containment vessel is provided with USB interface, the bottom of outer containment vessel is provided with electronic mounting groove, this new structure is simple, reasonable in design, simple to operate, easy to detect, mimic channel working stability efficiency is high, can time real comprehensive detection indoor pellet, inflammable gas, temperature, humidity.

Description

The comprehensive family measuring instrument of a kind of PM2.5

Technical field

The utility model relates to Detection of Air Quality field, is specifically related to the comprehensive family measuring instrument of a kind of PM2.5.

Background technology

PM2.5 refers to that in air, diameter is less than or equal to the particle of 2.5 microns, also referred to as entering lung particle, its diameter is less than 1/20 of the hairline thickness of people, although PM2.5 is the component that in earth atmosphere composition, content is little, but it has important impact to air quality and visibility etc., compared with thicker Atmospheric particulates, PM2.5 particle diameter is little, be rich in a large amount of poisonous and harmful substances and residence time is in an atmosphere long, fed distance is far away, thus larger on the impact of health and atmosphere quality.This examination criteria of PM2.5 is the earliest mainly in order to check industry to propose this numerical value, and PM2.5 index has been the parameter that air pollution one is important now, present PM2.5 write " GB ", include each province and city in and force monitoring category, require to detect it at any time, along with modernized society constantly develops, the standard value of PM2.5 is in continuous raising.

People it is generally acknowledged, PM2.5 is air pollution, in fact, PM2.5 may be worse to overall climatic influences, and PM2.5 can affect into cloud and rainfall, and remote effect climate change, the nucleus of condensation of rainwater in air, except the salinity in seawater, fine particle PM2.5 is also important source.Under some condition, PM2.5 is too many, possibility " sharing the meal " moisture, and the water dust making sky aerial is all childlike, and blue sky and white cloud just becomes more less than in the past; Under some condition, PM2.5 can increase the quantity of the nucleus of condensation, and the raindrop making sky aerial increase, heavy rain may be there is time extreme, PM2.5 except direct harm humans and animals and plants healthy, PM2.5 also by reducing visibility to the absorption of sunlight and scattering effect, causes gray haze phenomenon.PM2.5 reduces the growth that visibility can affect crops and other plant.Atmospheric particulates on the impact of visibility mainly through to the absorption of light and scattering.

The main source that PM2.5 produces, it is the residue of the discharge through burning in the processes such as daily generating, commercial production, motor vehicle exhaust emission, mostly containing noxious materials such as heavy metals, the coarseparticulate that particle diameter is 2.5 ~ 10 microns is mainly from mechanical processes such as dust on the roads, dust storm, industrial or agricultural activities; The flying dust that in PM2.5, primary particulate (being directly discharged into the particle in air) mainly produces from combustion of fossil fuel and biomass combustion and multiple inorganic and organic compound, as motor-vehicle tail-gas, fire coal, volatile organic matter, forest prairie fire etc.; In PM2.5, secondary aerosol species (particle indirectly generated) main source is the particle (as ammonium sulfate, ammoniumnitrate prill, organic compound composition granule etc.) that the gaseous material (sulphuric dioxide, oxides of nitrogen, gaseous ammonia and volatile organic matter etc.) in air is formed by there is chemical reaction; Most of area in the world, the secondary Source proportion of PM2.5 is often higher than once originating.

PM2.5 is defined as carcinogenic substance, and the impact of health mainly comprises: the mortality ratio adding grave illness and chronic; Make respiratory system, cardiac system disease progression, in hospital, this type of emergency treatment increases; Change pulmonary function and structure thereof; Change immunologic function; Cancer rate increases.The three class disease significants that particle causes: infectious disease: comprise influenza, pulmonary tuberculosis and pneumonia etc.; Irritated: to comprise the asthma and pulmonary alveolitis that are caused by natural anaphylactogen; Lung cancer etc.Be considered to most health effect small particle diameter part PM2.5 instead of Large stone part cause.The extent of injury depends primarily on its composition, concentration and particle diameter.Fine particle is larger to the harm of health, because diameter is less, the position entering respiratory tract is darker.The particle of 10 μm of diameters is deposited on the upper respiratory tract usually, the be deep into bronchiole of less than 2 μm and alveolar.After fine particle enters human body to alveolar, directly affect the ventilatory function of lung, make body easily be in anaerobic condition.Annual about 2,100,000 people in the whole world die from the particle concentrations such as PM2.5 and rise, and be the topmost source of particle at indoor second-hand-cigarette, as long as the source of particle be rough burning, therefore by the tobacco product of burning all can produce there is serious harm particle using character preferably cigarette also just the self confort of smoker larger harm even may be caused in like manner also to be applicable to golden paper burn because stink is lower, burns incense and the mosquito-repellent incense that burns.

There is single PM2.5 measuring instrument on the market now, also single inflammable gas measuring instrument is had, single family temperature & relative humidity indicator, and these equipment prices are expensive, a lot of average family holds dares not accept, if buy these instruments in one family also will bear the electricity charge produced when a part of machine runs every month, the situation often detecting PM2.5 does not just reach standard, living environment of cannot making the life better.

Therefore, a kind of structure is produced simple, reasonable in design, simple to operate, easy to detect, mimic channel working stability efficiency is high, low in energy consumption, cost is low, hommization, can time real comprehensive detection indoor pellet, inflammable gas, temperature, the comprehensive family measuring instrument of PM2.5 of humidity, has market outlook widely.

Summary of the invention

For the deficiencies in the prior art, the utility model provides a kind of structure simple, reasonable in design, simple to operate, easy to detect, mimic channel working stability efficiency is high, low in energy consumption, cost is low, hommization, can time real comprehensive detection indoor pellet, inflammable gas, temperature, the comprehensive family measuring instrument of PM2.5 of humidity.

The technical solution of the utility model is achieved in that the comprehensive family measuring instrument of a kind of PM2.5, comprising: outer containment vessel, and be provided with surface-mounted integrated circuit in described outer containment vessel, described surface-mounted integrated circuit is by power supply, single-chip microcomputer, PM2.5 detection module, Temperature Humidity Sensor, combustible gas sensor, perpetual calendar clock chip, LCDs, audible-visual annunciator, hummer, crystal oscillator, triode, infrared receiving tube, contactor, electric capacity and resistance composition, the front of described outer containment vessel is provided with LCDs, hummer, master switch button, master switch key indicator lamp and alarm lamp, described LCDs is arranged on the centre position of outer containment vessel, the below of described LCDs is provided with perpetual calendar clock chip regulating key, the left side of described LCDs is provided with master switch button, the side of described master switch button is provided with master switch key indicator lamp, the right side of described LCDs is provided with hummer, the side of described hummer is provided with alarm lamp, the side of described outer containment vessel is provided with USB interface, the bottom of described outer containment vessel is provided with electronic mounting groove, and described USB interface place is connected with USB wiring.

: the circuit of described surface-mounted integrated circuit connects following connected mode, described PM2.5 detection module, Temperature Humidity Sensor, combustible gas sensor is all connected with the circuit of LCDs with the circuit of perpetual calendar clock chip, described resistance comprises: R1, R2, R3, R5, R6, R7, R8, R9, R15, R16, R17, described electric capacity comprises: C1, C2, C3, C4, C5, C6, C7, C8, C9, C1O, described perpetual calendar clock chip regulating key comprises: K1, K2, K3, K4, wherein k1 is for arranging key, k2 is for exiting button, k3 is for reducing button, k4 is for increasing button, described triode comprises: D1, D2, described contactor comprises: Q1, Q2, electric capacity C9 and C10 is parallel with in the middle of VCC and the GND of described power supply, described C9 is the electric capacity of 10uf, C10 be 104 ceramic disc capacitor filtering is carried out to circuit, described single-chip microcomputer adopts the chip single-chip microcomputer of STC12C5A16S2 40 pin to make, the VCC pole of described single-chip microcomputer be connected with VCC2 and with being connected of power supply VCC, GND is connected by CE and GND and is connected with power supply VCC, the p0.4 pin of single-chip microcomputer connects LCD-CLK, p0.5 pin connects LCD-DATA, p0.6 pin connects k3, p0.7 pin connects k4, p1.0 pin connects PM2.5 detection module, p1.1 pin connects combustible gas sensor, p2.0 pin connects SCLK, p2.1 pin connects DS1302-CLK, p2.2 pin connects DS1302-CLK, p2.3 pin connects audible-visual annunciator, p2.5 pin connects Temperature Humidity Sensor, p2.6 pin connects k2, p2.7 pin connects k1, p3.0 pin connects RXD, p3.1 pin connects TXD, p3.2 pin connects infrared receiving tube, p4.7 pin connects reset circuit RST, described PM2.5 detection module adopts novel digital circuit to comprise six pass pin, wherein a pin of PM2.5 detection module is in parallel with VCC and GND and is connected, a described pin and the middle resistance R1 being in series with 150R of VCC, one pin and the middle electric capacity C3 being in series with 220uf of GND, two pins are connected with GND power cathode, three pins are connected with triode, triode is connected with the resistance R2 of 1k, resistance R2 and PM2.5-LED is connected, PM2.5-LED is connected with the p0.0 pin of single-chip microcomputer and carries out the transmission of electric signal, four pins are connected with GND power cathode, five pins are connected with single-chip microcomputer p1.0 pin, six pins are connected with VCC positive source, described Temperature Humidity Sensor comprises four pins, one pin is connected with power supply VCC with after two pins in parallel, resistance R8 is connected with in the middle of two described pins and power supply VCC, four pins are connected with power supply GND, described combustible gas sensor comprises four pin one pins and is connected with VCC with after two pins in parallel, be connected with combustible gas sensor three pin after GND is in parallel with the p1.1 pin of single-chip microcomputer, resistance R17 is connected with between described combustible gas sensor three pin and GND, be connected with GND after four pins are connected with resistance R16, described infrared receiving tube comprises three pins, one pin is connected with VCC, two pins are connected with GND, three pins are in parallel with VCC and single-chip microcomputer p3.2 pin and are connected, three pins of described infrared receiving tube and VCC centre are connected with resistance R3 and transmit electric signal, described perpetual calendar clock chip comprises eight pins, the VCC1 of one pin of described perpetual calendar clock chip is connected with power supply VCC, the VCC2 of two pins is connected with power supply GND, the X1 of three pins, be connected with crystal oscillator Y2JZ after the X2 of four pins is in parallel with the GND of five pins, SCLK and the DS1302-DATA of six pins is connected, I/O and the DS1302-CLK of seven pins is connected and feeds back electric signal, the CE of eight pins is connected with power supply GND, described LCDs employing LCD12864 LCDs is made and is comprised 20 pins, wherein, one pin is connected with power supply GND, two pins are connected with power supply VCC, four pins are connected with power supply VCC, five pins are connected with LCD-DATA, six pins are connected with LCD-CLK, 15 pins are connected with power supply GND, 17 pins are connected with power supply VCC, 19 pins are connected with power supply VCC, 20 pins are connected with power supply GND, described hummer comprises two pins, be in series with triode and resistance R7 after one pin and two pins in parallel, circuit on one side after series connection is connected with GND, one end is connected with Q2, described Q2 is parallel with R5 and R6, described R5 and VCC is connected, R6 is connected with audible-visual annunciator, described master switch key indicator lamp 10 is connected with the resistance R15 of 1k and the two ends being connected to power supply VCC and GND ensure that the power supply of power supply is normal, described master switch button adopts the connection of common anode to connect, the negative pole of master switch button is unified to be connected from the different pins of single-chip microcomputer, master switch button adopts the Capacitance parallel connection of master switch button two ends and 10uf to carry out refreshing to electric signal and identifies.

Described surface-mounted integrated circuit adopts the mainboard of double-deck pcb board material to make.

Described PM2.5 detection module adopts the sensor of Sharp dust sensor GP2Y1010AU0F to make.

Described Temperature Humidity Sensor adopts DHT11 digital temperature-humidity sensor to make.

Described combustible gas sensor adopts MQ-5 combustible gas sensor to make.

Described triode adopts the encapsulation paster triode of 8050 or 8550 to make.

Described switch key pilot lamp adopts 0.3mmLED green diode to make, and described alarm lamp adopts 0.3mmLED red diode to make.

The electronics of CR2032 is installed in described electronic mounting groove.

The utility model has following good effect: the comprehensive family measuring instrument of a kind of PM2.5 of the utility model combines PM2.5 to measure, inflammable gas measures early warning, the measurement of humiture in family, the detecting instrument of time showing, there is Chinese display function, independently operation push-button, stable clock chip, the MCU chip that performance is fabulous, measuring instrument can be made like this to reach hommization, can operationalization, energy-saving, meet the standard that national energy-saving reduces discharging, this utility model adopts digital circuit microcomputerized control scheme, inside establish exclusive system program, adopt import digital sensor, artificial intelligence drawing board connects up, the mimic channel work efficiency used than existing common survey instrument is higher more stable, more low cost is lower than the plug-in unit original paper power consumption of existing common survey instrument to adopt SMD original paper, adopt the single-chip microcomputer of the MCU chip of the fabulous STC12C5A16S2 of performance that program can be made to obtain stable operation, there is high stability and information processing capability, adopt Independent keys more convenient operation, adopt novel LED liquid crystal display Chinese display more humane, what PM2.5 detection module adopted this sensor of Sharp sensor GP2Y1010AU0F of import to use is Tyndall effect, the accurate detection to PM2.5 in family can be realized, very poor according to being provided with in national standard trace routine, difference, generally, good, very well, fabulous six grades, what Temperature Humidity Sensor adopted is DHT11 digital temperature-humidity sensor, the extremely low measurement of power consumption of this sensor is more accurate, temperature measurement range can reach 0-50 DEG C, measuring error is 2 DEG C, moisture measurement scope can reach 20%-95%, measuring error is 5%, what combustible gas sensor adopted is MQ-5 combustible gas sensor, the threshold values that in this sensor routines, setting is extremely low, as long as detect in air and will open immediately containing the audible-visual annunciator of this measuring instrument of inflammable gas and the warning device of hummer, warning alarming effect can be arrived in the very first time, the Presentation Function of LCDs adopts LCD12864 LCD Panel to have extremely low power consumption and can the different literals such as the English Japanese of Chinese display, extremely stable effect is reached during work, perpetual calendar adopts DS1302 clock chip collocation CR2032 electronics, even if the function that can realize perpetual calendar in the event of a power failure clock chip still in work, remove the trouble of start recalibration time next time from, surface-mounted integrated circuit adopts double-deck PCB to reduce area wiring, only four the vertical buttons of perpetual calendar employing time calibration are respectively and arrange key, time increases key, time decreased key, ESC Escape, it increases at every turn and reduction is all 1, triode adopts 0805 series encapsulation Chip-R electric capacity triode, reduce the machine volume and reduce cost increase machine operation stability, reduce power consumption, the maximum feature of the machine is exactly the real object detected when air quality reaches in composite measurement man, use the transmission carrying out electrical signal data between the I/O mouth of MCU and sensor, complete machine controls to adopt c language to run sexadecimal algorithm, processes sensor feeds back the electric signal of coming efficiently in time, and carry out judgement output, the structure of this integrated circuit is simple, gage data is accurate, feedback electrical signal data is faster more direct, display screen display measurement data can have convenience and intuitive more.

Accompanying drawing explanation

Fig. 1 is main structure schematic diagram of the present utility model.

Fig. 2 is the utility model inner structure schematic diagram.

Fig. 3 is side-looking structural representation of the present utility model.

Fig. 4 is plan structure schematic diagram of the present utility model.

Fig. 5 is the electrical block diagram of surface-mounted integrated circuit of the present utility model.

Fig. 6 is the PM2.5 detection module electrical block diagram of the partial enlargement of surface-mounted integrated circuit of the present utility model.

Fig. 7 is the single chip circuit structural representation of the partial enlargement of surface-mounted integrated circuit of the present utility model.

Fig. 8 is the combustible gas sensor electrical block diagram of the partial enlargement of surface-mounted integrated circuit of the present utility model.

Fig. 9 is the Temperature Humidity Sensor electrical block diagram of the partial enlargement of surface-mounted integrated circuit of the present utility model.

Figure 10 is the LCDs electrical block diagram of the partial enlargement of surface-mounted integrated circuit of the present utility model.

Figure 11 is the perpetual calendar clock chip circuit structure schematic diagram of the partial enlargement of surface-mounted integrated circuit of the present utility model.

Figure 12 is the buzzer circuit structural representation of the partial enlargement of surface-mounted integrated circuit of the present utility model.

In figure: 1, outer containment vessel 2, surface-mounted integrated circuit 3, master switch button 4, PM2.5 detection module 5, Temperature Humidity Sensor 6, combustible gas sensor 7, LCDs 8, hummer 9, perpetual calendar clock chip regulating key 10, master switch key indicator lamp 11, alarm lamp 12, usb 13, electronic mounting groove.

Embodiment

Below in conjunction with accompanying drawing, the utility model will be further described.

As Fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, shown in 12, the comprehensive family measuring instrument of a kind of PM2.5, comprising: outer containment vessel 1, is provided with surface-mounted integrated circuit 2 in described outer containment vessel 1, and described surface-mounted integrated circuit 2 is by power supply, single-chip microcomputer, PM2.5 detection module 4, Temperature Humidity Sensor 5, combustible gas sensor 6, perpetual calendar clock chip, LCDs 7, audible-visual annunciator, hummer 8, crystal oscillator, triode, infrared receiving tube, contactor, electric capacity and resistance composition, the front of described outer containment vessel is provided with LCDs 7, hummer 8, master switch button 3, master switch key indicator lamp 10 and alarm lamp 11, described LCDs 7 is arranged on the centre position of outer containment vessel 1, the below of described LCDs 7 is provided with perpetual calendar clock chip regulating key 9, the left side of described LCDs 7 is provided with master switch button 3, the side of described master switch button 3 is provided with master switch key indicator lamp 10, the right side of described LCDs 7 is provided with hummer 8, the side of described hummer 8 is provided with alarm lamp 11, the side of described outer containment vessel 1 is provided with usb 12, the bottom of described outer containment vessel 1 is provided with electronic mounting groove 13, and described usb 12 place is connected with USB wiring.The circuit of described surface-mounted integrated circuit 2 connects following connected mode, described PM2.5 detection module 4, Temperature Humidity Sensor 5, combustible gas sensor 6 is all connected with the circuit of LCDs 7 with the circuit of perpetual calendar clock chip, described resistance comprises: R1, R2, R3, R5, R6, R7, R8, R9, R15, R16, R17, described electric capacity comprises: C1, C2, C3, C4, C5, C6, C7, C8, C9, C1O, described perpetual calendar clock chip regulating key 9 comprises k1, k2, k3, k4, wherein k1 is for arranging key, k2 is for exiting button, k3 is for reducing button, k4 is for increasing button, described triode comprises: D1, D2, described contactor comprises: Q1, Q2, electric capacity C9 and C10 is parallel with in the middle of VCC and the GND of described power supply, described C9 is the electric capacity of 10uf, C10 be 104 ceramic disc capacitor filtering is carried out to circuit, described single-chip microcomputer adopts the chip single-chip microcomputer of STC12C5A16S2 40 pin to make, the VCC pole of described single-chip microcomputer be connected with VCC2 and with being connected of power supply VCC, GND is connected by CE and GND and is connected with power supply VCC, the p0.4 pin of single-chip microcomputer connects LCD-CLK, p0.5 pin connects LCD-DATA, p0.6 pin connects k3, p0.7 pin connects k4, p1.0 pin connects PM2.5 detection module 4, p1.1 pin connects combustible gas sensor 6, p2.0 pin connects SCLK, p2.1 pin connects DS1302-CLK, p2.2 pin connects DS1302-CLK, p2.3 pin connects audible-visual annunciator, p2.5 pin connects Temperature Humidity Sensor 5, p2.6 pin connects k2, p2.7 pin connects k1, p3.0 pin connects RXD, p3.1 pin connects TXD, p3.2 pin connects infrared receiving tube, p4.7 pin connects reset circuit RST, described PM2.5 detection module 4 adopts novel digital circuit to comprise six pass pin, wherein a pin of PM2.5 detection module is in parallel with VCC and GND and is connected, a described pin and the middle resistance R1 being in series with 150R of VCC, one pin and the middle electric capacity C3 being in series with 220uf of GND, two pins are connected with GND power cathode, three pins are connected with triode, triode is connected with the resistance R2 of 1k, resistance R2 and PM2.5-LED is connected, PM2.5-LED is connected with the p0.0 pin of single-chip microcomputer and carries out the transmission of electric signal, four pins are connected with GND power cathode, five pins are connected with single-chip microcomputer p1.0 pin, six pins are connected with VCC positive source, described Temperature Humidity Sensor 5 comprises four pins, one pin is connected with power supply VCC with after two pins in parallel, resistance R8 is connected with in the middle of two described pins and power supply VCC, four pins are connected with power supply GND, described combustible gas sensor 6 comprises four pin one pins and is connected with VCC with after two pins in parallel, be connected with combustible gas sensor 6 three pin after GND is in parallel with the p1.1 pin of single-chip microcomputer, resistance R17 is connected with between described combustible gas sensor 6 three pin and GND, be connected with GND after four pins are connected with resistance R16, described infrared receiving tube comprises three pins, one pin is connected with VCC, two pins are connected with GND, three pins are in parallel with VCC and single-chip microcomputer p3.2 pin and are connected, three pins of described infrared receiving tube and VCC centre are connected with resistance R3 and transmit electric signal, described perpetual calendar clock chip comprises eight pins, the VCC1 of one pin of described perpetual calendar clock chip is connected with power supply VCC, the VCC2 of two pins is connected with power supply GND, the X1 of three pins, be connected with crystal oscillator Y2JZ after the X2 of four pins is in parallel with the GND of five pins, SCLK and the DS1302-DATA of six pins is connected, I/O and the DS1302-CLK of seven pins is connected and feeds back electric signal, the CE of eight pins is connected with power supply GND, described LCDs 7 adopts LCD12864 LCDs to make to comprise 20 pins, wherein, one pin is connected with power supply GND, two pins are connected with power supply VCC, four pins are connected with power supply VCC, five pins are connected with LCD-DATA, six pins are connected with LCD-CLK, 15 pins are connected with power supply GND, 17 pins are connected with power supply VCC, 19 pins are connected with power supply VCC, 20 pins are connected with power supply GND, described hummer 8 comprises two pins, be in series with triode and resistance R7 after one pin and two pins in parallel, circuit on one side after series connection is connected with GND, one end is connected with Q2, described Q2 is parallel with R5 and R6, described R5 and VCC is connected, R6 is connected with audible-visual annunciator, described master switch key indicator lamp 10 is connected with the resistance R15 of 1k and the two ends being connected to power supply VCC and GND ensure that the power supply of power supply is normal, described master switch button 3 adopts the connection of common anode to connect, the negative pole of master switch button 3 is unified to be connected from the different pins of single-chip microcomputer, master switch button 3 adopts the Capacitance parallel connection of master switch button 3 two ends and 10uf to carry out refreshing to electric signal and identifies.Described surface-mounted integrated circuit 2 adopts the mainboard of double-deck pcb board material to make.Described PM2.5 detection module 4 adopts the sensor of Sharp dust sensor GP2Y1010AU0F to make.Described Temperature Humidity Sensor 5 adopts DHT11 digital temperature-humidity sensor to make.Described combustible gas sensor 6 adopts MQ-5 combustible gas sensor to make.Described triode adopts the encapsulation paster triode of 8050 or 8550 to make.Described switch key pilot lamp adopts 0.3mmLED green diode to make, and described alarm lamp adopts 0.3mmLED red diode to make.The electronics of CR2032 is installed in described electronic mounting groove 13.

The utility model in use, the electronics of lastblock CR2032 is installed in the electronic mounting groove 13 first outside bottom containment vessel 1, then USB wiring is inserted in usb 12, the other end of USB wiring is connected the direct supply place of upper 5v1A, Deng connection completing circuit stable after, press master switch button 3 downwards, now master switch key indicator lamp 10 can light, and LCDs 7 also can light, the screen of LCDs 7 lights and enters starting-up interface, wait for and enter working interface in about 10 seconds, display perpetual calendar, clock, and the mass effect of the PM2.5 of the indoor tested, temperature value and fractional moisture content, perpetual calendar clock chip regulating key 9 pairs of perpetual calendars and time is regulated to calibrate, when combustible gas sensor 6 does not detect combustible gas, hummer 8 can not drone ring, alarm lamp 11 can not light, when combustible gas sensor 6 detects combustible gas, hummer 8 meeting is drone sound always, alarm lamp 11 can light flicker always, now testing staff should according to the comprehensive family measuring instrument of PM2.5 to the mass effect of the PM2.5 of indoor environment, temperature value and fractional moisture content and inflammable gas carry out improving and processing, the structure of this utility model is simple, reasonable in design, simple to operate, easy to detect, mimic channel working stability efficiency is high, low in energy consumption, cost is low, hommization, can time real comprehensive detection indoor pellet, inflammable gas, temperature, humidity.

Claims

1. the comprehensive family measuring instrument of PM2.5, comprising: outer containment vessel, and be provided with surface-mounted integrated circuit in described outer containment vessel, described surface-mounted integrated circuit is by power supply, single-chip microcomputer, PM2.5 detection module, Temperature Humidity Sensor, combustible gas sensor, perpetual calendar clock chip, LCDs, audible-visual annunciator, hummer, crystal oscillator, triode, infrared receiving tube, contactor, electric capacity and resistance composition, the front of described outer containment vessel is provided with LCDs, hummer, master switch button, master switch key indicator lamp and alarm lamp, described LCDs is arranged on the centre position of outer containment vessel, the below of described LCDs is provided with perpetual calendar clock chip regulating key, the left side of described LCDs is provided with master switch button, the side of described master switch button is provided with master switch key indicator lamp, the right side of described LCDs is provided with hummer, the side of described hummer is provided with alarm lamp, the side of described outer containment vessel is provided with USB interface, the bottom of described outer containment vessel is provided with electronic mounting groove, and described USB interface place is connected with USB wiring.

2. the comprehensive family measuring instrument of PM2.5 according to claim 1, it is characterized in that: the circuit of described surface-mounted integrated circuit connects following connected mode, described PM2.5 detection module, Temperature Humidity Sensor, combustible gas sensor is all connected with the circuit of LCDs with the circuit of perpetual calendar clock chip, described resistance comprises: R1, R2, R3, R5, R6, R7, R8, R9, R15, R16, R17, described electric capacity comprises: C1, C2, C3, C4, C5, C6, C7, C8, C9, C1O, described perpetual calendar clock chip regulating key comprises: K1, K2, K3, K4, wherein k1 is for arranging key, k2 is for exiting button, k3 is for reducing button, k4 is for increasing button, described triode comprises: D1, D2, described contactor comprises: Q1, Q2, electric capacity C9 and C10 is parallel with in the middle of VCC and the GND of described power supply, described C9 is the electric capacity of 10uf, C10 be 104 ceramic disc capacitor filtering is carried out to circuit, described single-chip microcomputer adopts the chip single-chip microcomputer of STC12C5A16S2 40 pin to make, the VCC pole of described single-chip microcomputer be connected with VCC2 and with being connected of power supply VCC, GND is connected by CE and GND and is connected with power supply VCC, the p0.4 pin of single-chip microcomputer connects LCD-CLK, p0.5 pin connects LCD-DATA, p0.6 pin connects k3, p0.7 pin connects k4, p1.0 pin connects PM2.5 detection module, p1.1 pin connects combustible gas sensor, p2.0 pin connects SCLK, p2.1 pin connects DS1302-CLK, p2.2 pin connects DS1302-CLK, p2.3 pin connects audible-visual annunciator, p2.5 pin connects Temperature Humidity Sensor, p2.6 pin connects k2, p2.7 pin connects k1, p3.0 pin connects RXD, p3.1 pin connects TXD, p3.2 pin connects infrared receiving tube, p4.7 pin connects reset circuit RST, described PM2.5 detection module adopts novel digital circuit to comprise six pass pin, wherein a pin of PM2.5 detection module is in parallel with VCC and GND and is connected, a described pin and the middle resistance R1 being in series with 150R of VCC, one pin and the middle electric capacity C3 being in series with 220uf of GND, two pins are connected with GND power cathode, three pins are connected with triode, triode is connected with the resistance R2 of 1k, resistance R2 and PM2.5-LED is connected, PM2.5-LED is connected with the p0.0 pin of single-chip microcomputer and carries out the transmission of electric signal, four pins are connected with GND power cathode, five pins are connected with single-chip microcomputer p1.0 pin, six pins are connected with VCC positive source, described Temperature Humidity Sensor comprises four pins, one pin is connected with power supply VCC with after two pins in parallel, resistance R8 is connected with in the middle of two described pins and power supply VCC, four pins are connected with power supply GND, described combustible gas sensor comprises four pin one pins and is connected with VCC with after two pins in parallel, be connected with combustible gas sensor three pin after GND is in parallel with the p1.1 pin of single-chip microcomputer, resistance R17 is connected with between described combustible gas sensor three pin and GND, be connected with GND after four pins are connected with resistance R16, described infrared receiving tube comprises three pins, one pin is connected with VCC, two pins are connected with GND, three pins are in parallel with VCC and single-chip microcomputer p3.2 pin and are connected, three pins of described infrared receiving tube and VCC centre are connected with resistance R3 and transmit electric signal, described perpetual calendar clock chip comprises eight pins, the VCC1 of one pin of described perpetual calendar clock chip is connected with power supply VCC, the VCC2 of two pins is connected with power supply GND, the X1 of three pins, be connected with crystal oscillator Y2JZ after the X2 of four pins is in parallel with the GND of five pins, SCLK and the DS1302-DATA of six pins is connected, I/O and the DS1302-CLK of seven pins is connected and feeds back electric signal, the CE of eight pins is connected with power supply GND, described LCDs employing LCD12864 LCDs is made and is comprised 20 pins, wherein, one pin is connected with power supply GND, two pins are connected with power supply VCC, four pins are connected with power supply VCC, five pins are connected with LCD-DATA, six pins are connected with LCD-CLK, 15 pins are connected with power supply GND, 17 pins are connected with power supply VCC, 19 pins are connected with power supply VCC, 20 pins are connected with power supply GND, described hummer comprises two pins, be in series with triode and resistance R7 after one pin and two pins in parallel, circuit on one side after series connection is connected with GND, one end is connected with Q2, described Q2 is parallel with R5 and R6, described R5 and VCC is connected, R6 is connected with audible-visual annunciator, described master switch key indicator lamp 10 is connected with the resistance R15 of 1k and the two ends being connected to power supply VCC and GND ensure that the power supply of power supply is normal, described master switch button adopts the connection of common anode to connect, the negative pole of master switch button is unified to be connected from the different pins of single-chip microcomputer, master switch button adopts the Capacitance parallel connection of master switch button two ends and 10uf to carry out refreshing to electric signal and identifies.

3. the comprehensive family measuring instrument of PM2.5 according to claim 1, is characterized in that: described surface-mounted integrated circuit adopts the mainboard of double-deck pcb board material to make.

4. the comprehensive family measuring instrument of PM2.5 according to claim 1, is characterized in that: described PM2.5 detection module adopts the sensor of Sharp dust sensor GP2Y1010AU0F to make.

5. the comprehensive family measuring instrument of PM2.5 according to claim 1, is characterized in that: described Temperature Humidity Sensor adopts DHT11 digital temperature-humidity sensor to make.

6. the comprehensive family measuring instrument of PM2.5 according to claim 1, is characterized in that: described combustible gas sensor adopts MQ-5 combustible gas sensor to make.

7. the comprehensive family measuring instrument of PM2.5 according to claim 1, is characterized in that: described triode adopts the encapsulation paster triode of 8050 or 8550 to make.

8. the comprehensive family measuring instrument of PM2.5 according to claim 1, is characterized in that: described switch key pilot lamp adopts 0.3mmLED green diode to make, and described alarm lamp adopts 0.3mmLED red diode to make.

9. the comprehensive family measuring instrument of PM2.5 according to claim 1, is characterized in that: the electronics being provided with CR2032 in described electronic mounting groove.