CN205262512U

CN205262512U - PM2. 5 detector that shows multiple information

Info

Publication number: CN205262512U
Application number: CN201520814926.4U
Authority: CN
Inventors: 徐志强; 王建华; 王少平
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-10-21
Filing date: 2015-10-21
Publication date: 2016-05-25
Anticipated expiration: 2025-10-21

Abstract

The utility model provides a PM2.5 detector that shows multiple information, belongs to air quality test equipment for detect the PM2.5 of air quality. Its technical scheme is: the utility model discloses a singlechip, temperature and humidity sensor, the PM2.5 sensor, touch chip and liquid crystal touch screen device structure, rapidly transacting function through the singlechip, it is instantaneous to demonstrate PM2.5, PM2.5 is average, the demonstration of PM2.5 trend, the air pollution grade, air quality and time, date, the temperature, information such as humidity, and when being equipped with liquid crystal touch screen and transferring, functions such as PM2.5 numerical value fine setting, the high -grade multi -functional PM2.5 instrumentation of a section, surmount the seven segment numerical pipe commonly used at present and the similar products of monochromatic LCD screen completely, the technological innovation of product has been realized.

Description

A kind of PM2.5 detector that shows much information

Technical field

The utility model relates to a kind of PM2.5 detector that detects air quality, belongs to Detection of Air Quality equipment technical field.

Background technology

Along with the aggravation of global atmosphere environmental pollution, increasing people start to pay close attention to air quality. In air quality monitoring, the numerical value situation of PM2.5 is the important content of reflection air quality. The PM2.5 numerical value of the different places such as the numerical value of monitoring PM2.5 need to detect in residence, office, the inside and outside boundary of car, to can realize in time and take safeguard procedures when air quality is poor, keeps fit. The PM2.5 instrumentation that family and unit extensively adopt at present generally all adopts seven segment digital tubes and the single color LCD screen of low side, the data that detect are instantaneous state, can not show the PM2.5 change in concentration situation in certain hour section, function is comparatively single, and font is stiff, precision is lower, information is limited, elegant in appearance not, be necessary to be improved, to meet various crowds' needs.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of PM2.5 detector that shows much information, this PM2.5 detector shows with air pollution grade and PM2.5 concentration trend changes, rich display information, simultaneously with touch screen function, interface fineness, with cartoon picture, can meet multiple crowd's needs.

The technical scheme solving the problems of the technologies described above is:

A kind of PM2.5 detector that shows much information, it comprises housing, power supply chip, touch chip, time chip, single-chip microcomputer, Temperature Humidity Sensor, PM2.5 sensor, liquid crystal touch screen, power supply chip respectively with touch chip, time chip, single-chip microcomputer, Temperature Humidity Sensor, PM2.5 sensor, the power interface of liquid crystal touch screen is connected, touching the signal input interface of chip and the signal output interface of liquid crystal touch screen is connected, touching the signal output interface of chip and the signal input interface of single-chip microcomputer is connected, the signal output interface of time chip is connected with the time interface of single-chip microcomputer, Temperature Humidity Sensor, the signal output part of PM2.5 sensor is connected with the signal input interface of single-chip microcomputer respectively.

The PM2.5 detector of above-mentioned demonstration much information, it also has battery, and battery is connected with time chip.

The PM2.5 detector of above-mentioned demonstration much information, the P0 mouth of described single-chip microcomputer connects screen data least-significant byte, P2.3～P2.7 mouth of single-chip microcomputer connects the control port of touch-screen, P2.0～P2.2 mouth of single-chip microcomputer connects time chip control port, the control port of chip is touched in P3.2～P3.7 mouth contact of single-chip microcomputer, the P3.1 mouth of single-chip microcomputer connects the signal output port of Temperature Humidity Sensor, the P3.0 mouth of single-chip microcomputer connects the pulse signal output end mouth of PM2.5 sensor, the P1.1 mouth of single-chip microcomputer connects the output voltage port of PM2.5 sensor, the P1.0 mouth of single-chip microcomputer connects the Voltage-output of supplying cell through divider resistance.

The beneficial effects of the utility model are:

The utility model has adopted single-chip microcomputer, Temperature Humidity Sensor, PM2.5 sensor, touch chip and touch panel device structure, by the fast processing function of single-chip microcomputer, PM2.5 can be demonstrated instantaneous, PM2.5 is average, PM2.5 trend shows, air pollution grade, air quality and time, date, temperature, the information such as humidity, and be equipped with touch-screen timing, the functions such as PM2.5 numerical value fine setting, it is the multi-functional PM2.5 instrumentation of a top grade, surmount the similar products of at present conventional seven segment digital tubes and single color LCD screen completely, realize the technological innovation of product.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is circuit theory diagrams of the present utility model.

In figure, mark is as follows: power supply chip 1, touch chip 2, time chip 3, battery 4, single-chip microcomputer 5, Temperature Humidity Sensor 6, PM2.5 sensor 7, liquid crystal touch screen 8.

Detailed description of the invention

The utility model is made up of power supply chip 1, touch chip 2, time chip 3, battery 4, single-chip microcomputer 5, Temperature Humidity Sensor 6, PM2.5 sensor 7, liquid crystal touch screen 8.

Fig. 1 demonstration, power supply chip 1 is connected with the power interface that touches chip 2, time chip 3, single-chip microcomputer 5, Temperature Humidity Sensor 6, PM2.5 sensor 7, liquid crystal touch screen 8 respectively, gives the power supply of whole system all parts.

Fig. 1 demonstration, the signal output interface that touches chip 2 is connected with the signal input interface of liquid crystal touch screen 8 with single-chip microcomputer 5 respectively, will on liquid crystal touch screen 8, offer single-chip microcomputer 5 by touch screen signal after processing.

Fig. 1 demonstration, the signal output interface of time chip 3 is connected with the time interface of single-chip microcomputer 5, provides temporal information to single-chip microcomputer 5.

Fig. 1 demonstration, the signal output interface of Temperature Humidity Sensor 6, PM2.5 sensor 7 is connected with single-chip microcomputer 5 respectively, and the signal output interface of single-chip microcomputer 5 is connected with the signal input interface of liquid crystal touch screen 8. Humiture chip 6 provides temperature humidity information to single-chip microcomputer 5, and PM2.5 sensor 7 provides PM2.5 numerical value to single-chip microcomputer 5, and single-chip microcomputer 5 send liquid crystal touch screen 8 to show after the data of collection are calculated, and single-chip microcomputer 5 is controlled other chip operations simultaneously.

Fig. 1 demonstration, battery 4 is connected with time chip 3, as the back-up source of time chip 3, is that time chip 3 is powered, while guaranteeing to walk continuously in the time that power supply chip 1 is closed.

Fig. 1 shows, liquid crystal touch screen 8 is TFT True Color LCDs, according to single-chip microcomputer 5 order Show Picture, lines and data.

Fig. 2 shows, circuit theory diagrams of the present utility model.

The P0 mouth of single-chip microcomputer 5 connects liquid crystal touch screen 8 data least-significant bytes, P2.3～P2.7 mouth of single-chip microcomputer 5 connects the control port of liquid crystal touch screen 8, P2.0～P2.2 mouth of single-chip microcomputer 5 connects the control port of time chip 3, the control port of chip 2 is touched in P3.2～P3.7 mouth contact of single-chip microcomputer 5, the P3.1 mouth of single-chip microcomputer 5 connects the output port of Temperature Humidity Sensor 6, the P3.0 mouth of single-chip microcomputer 5 connects the pulse signal output end mouth of PM2.5 sensor 7, the P1.1 mouth of single-chip microcomputer 5 connects the output voltage port of PM2.5 sensor 7, the P1.0 mouth of single-chip microcomputer 5 connects the voltage output end of supplying cell through divider resistance.

The components and parts of an embodiment of the present utility model are as follows:

Power supply chip 1: adopt LM1117-3.3 power supply chip;

Liquid crystal touch screen 8: adopt 2.4 inch of 37 pin index zone to touch very color display screen;

Touch chip 2: adopt XPT2046 to touch chip;

Single-chip microcomputer 5: adopt STC15F2K60S2 single-chip microcomputer;

Temperature Humidity Sensor 6: adopt AM2302 Temperature Humidity Sensor;

PM2.5 sensor 7: adopt the GP2Y1010AU0FPM2.5 of Sharp sensor;

Time chip 3: adopt DS1302 time chip.

The utility model displaying contents comprises: clock, perpetual calendar, temperature, humidity, battery electric quantity, PM2.5 is instantaneous, PM2.5 is average, PM2.5 trend shows, air pollution grade shows, the corresponding cartoon Image Display of air quality etc., abundant in content, numerical value is accurate.

Liquid crystal touch screen 8 screens of the present utility model are the very color LCDs of top grade, and 260,000 is very color, ensured good display effect. Display screen is with touch function, and timing only need dub screen and can complete, and enters behind timing interface can adjust the time, PM2.5 numerical value is finely tuned to correction. Touch function is completed with touching chip 2 jointly by resistance screen, real-time response personnel's touch screen action.

Single-chip microcomputer 5 of the present utility model is selected High Performance SCM, and the speed of service is very fast, ensures that monitored data shows in real time.

0.1 DEG C of the certainty of measurement of Temperature Humidity Sensor 6 of the present utility model, 1 second measuring period; PM2.5 sensor 7 adopts Japanese sophisticated sensor, and precision is 1ug/m³, 1.5 seconds measuring periods.

Time chip 3 of the present utility model adopts import clock chip, is equipped with high-accuracy crystal resonator, has 3.3V button cell 4 as stand-by power supply, realizes while walking continuously, and battery 4 electric weight detect and adopt the owned AD function of single-chip microcomputer 5 to realize, and precision reaches 0.1V.

The utility model with USB mouth power taking (being applicable to indoor), cigar lighter power taking (being applicable in car), carry the functions such as powered battery (being applicable to hand-held), extremely easy to use.

Operation principle of the present utility model is as follows

Power supply chip 1 is obtained 3.3V power supply in several ways for whole instrumentation, Temperature Humidity Sensor 6 detects respectively air themperature, humidity value, 7 fixed cycles of PM2.5 sensor are subject to single-chip microcomputer 5 and trigger, and measure current PM2.5 numerical value, with voltage system feedback single-chip microcomputer 5. Single-chip microcomputer 5 storage control programs, initialize setting after start, then start regularly time chip 3, Temperature Humidity Sensor 6, PM2.5 sensor 7 are sent control command and obtain data and calculate. All result of calculation is at the TFT of liquid crystal touch screen 8 screen display and refresh. Single-chip microcomputer 5 Real-Time Monitoring liquid crystal touch screen 8 states, if detect that there is touch screen action screen specific region, control TFT and show timing interface or follow-on test PM2.5 interface, click screen specific region and can return to main interface, single-chip microcomputer 5 continues to gather the information such as displaying time, humiture, PM2.5 value at main interface.

Claims

1. one kind shows the PM2.5 detector of much information, it is characterized in that: it comprises housing, power supply chip (1), touch chip (2), time chip (3), single-chip microcomputer (5), Temperature Humidity Sensor (6), PM2.5 sensor (7), liquid crystal touch screen (8), power supply chip (1) respectively with touch chip (2), time chip (3), single-chip microcomputer (5), Temperature Humidity Sensor (6), PM2.5 sensor (7), the power interface of liquid crystal touch screen (8) is connected, the signal input interface that touches chip (2) is connected with the signal output interface of liquid crystal touch screen (8) with single-chip microcomputer (5), the signal output interface that touches chip (2) is connected with the signal input interface of single-chip microcomputer (5), the signal output interface of time chip (3) is connected with the time interface of single-chip microcomputer (5), Temperature Humidity Sensor (6), the signal output part of PM2.5 sensor (7) is connected with the signal input interface of single-chip microcomputer (5) respectively.

2. the PM2.5 detector of demonstration much information according to claim 1, is characterized in that: it also has battery (4), and battery (4) is connected with time chip (3).

3. the PM2.5 detector of demonstration much information according to claim 2, it is characterized in that: the P0 mouth of described single-chip microcomputer (5) connects liquid crystal touch screen (8) data least-significant byte, P2.3～P2.7 mouth of single-chip microcomputer (5) connects the control port of liquid crystal touch screen (8), P2.0～P2.2 mouth of single-chip microcomputer (5) connects the control port of time chip (3), the control port of chip (2) is touched in P3.2～P3.7 mouth contact of single-chip microcomputer (5), the P3.1 mouth of single-chip microcomputer (5) connects the signal output port of Temperature Humidity Sensor (6), the P3.0 mouth of single-chip microcomputer (5) connects the pulse signal output end mouth of PM2.5 sensor (7), the P1.1 mouth of single-chip microcomputer (5) connects the output voltage port of PM2.5 sensor (7), the P1.0 mouth of single-chip microcomputer (5) connects the Voltage-output of supplying cell through divider resistance.