CN205506227U - Can remember environmental parameter measurement analyzer - Google Patents
Can remember environmental parameter measurement analyzer Download PDFInfo
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- CN205506227U CN205506227U CN201620320417.0U CN201620320417U CN205506227U CN 205506227 U CN205506227 U CN 205506227U CN 201620320417 U CN201620320417 U CN 201620320417U CN 205506227 U CN205506227 U CN 205506227U
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Abstract
The utility model discloses a can remember environmental parameter measurement analyzer, which comprises a housin, be provided with singlechip, memory and battery in the casing, the preceding terminal surface of casing is provided with heat and releases electric induction sensor, control panel and display screen, and the top face of casing is provided with solar cell panel, still is provided with the acquisition unit who is used for measuring ring border parameter on the casing, the input of battery is connected to solar cell panel's output, holds battery output end menstruation heat and releases the power end that the display screen is connected to the electric induction sensor, acquisition unit and control panel are connected respectively to the input of singlechip, and the output of singlechip is connected with display screen and memory respectively. The utility model discloses the low power dissipation has the memory memory function, need not to monitor and need not to charge convenient to use repeatedly to storage battery microcomputer.
Description
Technical field
This utility model relates to environmental protection technical field, particularly a kind of ambient parameter measurement analysis device.
Background technology
In environmental protection technical field; for evaluating and testing the parameter of environmental quality and having ambient temperature, radiation, vapour pressure to wane, temperature, soil moisture etc.; therefore environmental measurement equipment comprise respective sensor for measuring each parameter mostly; these parameters usually require that and carry out follow-on test for a long time; adding and limited by placing environment, the power supply of equipment becomes as one of problem demanding prompt solution.Traditional environmental measurement equipment uses storage battery power supply mostly, keeps duty for a long time owing to measuring the display screen of equipment, greatly wastes electric energy；When accumulator short of electricity, do not simply fail to continue ambient parameter is measured, it also occur that missing measurement problem, and the very difficult effectively monitoring of electricity of accumulator, the most just cannot ensure the seriality that ambient parameter is measured.
Summary of the invention
This utility model technical issues that need to address be to provide a kind of low in energy consumption, there is memory function, without accumulator electric-quantity being monitored and without the ambient parameter analyzer repeatedly charged.
For solving above-mentioned technical problem, technical solution adopted in the utility model is as follows.
Can memory ring environment parameter measurement analyser, including housing, single-chip microcomputer, memorizer and accumulator it is provided with in described housing, the front end face of housing is provided with pyroelectric sensing sensor, control panel and display screen, the top end face of housing is provided with solar panel, and housing is additionally provided with the collecting unit for measuring ambient parameter；The outfan of described solar panel connects the input of accumulator, and the outfan of accumulator connects the power end of display screen through pyroelectric sensing sensor；The input of described single-chip microcomputer connects collecting unit and control panel respectively, and the outfan of single-chip microcomputer is connected with display screen and memorizer respectively.
Above-mentioned can memory ring environment parameter measurement analyser, described collecting unit include being connected with single-chip microcomputer input respectively for gathering the noise transducer of environment noise index, for gathering the pH sensor of rainwater pH value, for gathering the PM sensor of environment PM2.5 and PM10 parameter and for gathering the temperature sensor of ambient temperature parameter.
Above-mentioned can memory ring environment parameter measurement analyser, described single-chip microcomputer is STM32F103ZET6 single-chip microcomputer.
Owing to have employed above technical scheme, technological progress acquired by this utility model is as follows.
This utility model uses solar cell for supplying power, at any time accumulator can be carried out automatic charging, it is not necessary to arrange electric quantity monitoring circuit, without being manually repeatedly charged accumulator, easy to use；Environment measuring data can be stored by the memorizer that this utility model is arranged, and makes equipment possess power-down protection, it is therefore prevented that the generation of data phenomenon is lost in power down；The setting of pyroelectric sensing sensor, it is possible to sense human body, i.e. starts display screen and shows, and close display screen when people is away from detection zone, reduce power consumption, saved electric energy when there being people near detection zone.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model；
Fig. 2 is schematic perspective view of the present utility model；
Fig. 3 is front view of the present utility model；
Fig. 4 is inside top figure of the present utility model.
Wherein: 1. pyroelectric sensing sensor, 2. pH sensor, 3. noise transducer, 4. control panel, 5. display screen, 6.PM sensor, 7. temperature sensor, 8. memorizer, 9. single-chip microcomputer, 10. solar panel, 11. housings.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is further elaborated.
One can memory ring environment parameter measurement analyser, including housing 11, be provided with single-chip microcomputer 9, memorizer 8 and accumulator in housing, as shown in Figure 4；The front end face of housing 11 is provided with pyroelectric sensing sensor 1, control panel 4 and display screen 5, as shown in Figure 3；The top end face of housing 11 is provided with solar panel 10, as shown in Figure 2；Being additionally provided with the collecting unit for measuring ambient parameter on housing, collecting unit includes noise transducer 3, pH sensor 2, PM sensor 6 and temperature sensor 7 etc.；Annexation between above-mentioned each parts is as it is shown in figure 1, particularly as follows: the outfan of solar panel connects the input of accumulator, the outfan of accumulator connects the power end of display screen through pyroelectric sensing sensor；The input of described single-chip microcomputer connects collecting unit and control panel respectively, and the outfan of single-chip microcomputer is connected with display screen and memorizer respectively.
It is accumulator charging that solar panel 10 is used for converting the solar into electric energy, and overall dimensions 640*540*25mm, output 50 watts, output voltage is 12V, exports electric current 2.80A, open-circuit voltage 22V, and its conversion efficiency is about 18%.Accumulator uses lead battery, and rated voltage is 12V, and capacity is 50AH, and the blood pressure lowering of battery selects common 12V to turn the voltage reduction module of 5V, and the power supply after blood pressure lowering can be powered directly to 5V single-chip microcomputer.
Single-chip microcomputer 9 is for its manipulation effect of miscellaneous part, in the present embodiment, STM32F103ZET6 single-chip microcomputer selected by single-chip microcomputer, its core processor is ARM CortexM3, running frequency reaches as high as 72MHz, flash capacity 512KB, RAM capacity 64KB, support CAN, I2C bus, LIN bus, spi bus interface, UART/USART, USB controller, PWM exports, multichannel ADC, real-time clock RTC etc., wherein the ADC of 12 precision has multiple translative mode, and with an internal temperature sensor, also has 122 I/O ports.Due to this kind of single-chip microcomputer operating rate sufficiently fast (72MHz), I/O port quantity is abundant, can be competent at environmental monitoring work the most completely.
The ambient parameter that memorizer 8 is surveyed for storage, the EEPROM that model is AT28C256 that memorizer uses, this EEPROM is high performance EEPROM, internal memory 1Mb, the original image manufacturing capture uses non-volatile CMOS technology advanced for Atmel, it is provided that the equipment of access only has the power consumption of 440 milliwatts；When equipment is cancelled, CMOS standby current is less than 200 microamperes.AT28C256 is the static RAM in a reading or write cycle time, does not access outer member；Comprise 64 byte page depositors, it is allowed to the most at most 64 bytes of write.In write cycle time, the data of address and 164 bytes are latched by home address, thus discharge address and data/address bus, operate for other；When write cycle time starts, equipment can automatically write the timer-operated latch data using an inside；Detection can be polled by I/O7 data at the end of write cycle；Once at the end of write cycle time, a new access for reading or write can start.
This utility model additionally provides a real-time clock module, and real-time clock module essence is the intervalometer of a sixteen bit, can represent the temporal informations such as date, Hour Minute Second with the help of UNIX timestamp function.We use this clock as system reference clock, provide a time reference to the storage of data.
Display screen 5 uses 320240 liquid crystal display screens, the long 163MM of this display screen, wide 97MM, for monochromatic band backlight liquid crystal screen, data transfer mode is eight parallel-by-bit transmission, is connected with interface microcontroller simply, and there is independent Chinese word library and DDRAM and GDRAM, easily operated, can work under the situation of all kinds of bad environments, therefore be very suitable for the display work of measuring instrument.
Pyroelectric sensing sensor 1 is thermally sensitive sensor, whether has people near detection zone for sensing, and whether the backlight controlling display screen accordingly opens.Pyroelectric sensing sensor is made up of ceramic oxide or piezolectric crystal unit, helping build, electrode is made on two surfaces, when in the range of Sensor monitoring, temperature has the change of △ T, pyroelectric effect can produce electric charge △ Q on two electrodes, produces a faint voltage △ V the most in-between the electrodes.Owing to its output impedance is high, a field effect transistor is had to carry out impedance transformation in the sensor.Produced by pyroelectric effect, electric charge △ Q can be combined by the ion in air and disappear, and i.e. has difference when ambient temperature, produces △ T, then have △ T to export；If human body is motionless after entering detection zone, then temperature is not changed in, and sensor does not the most export, and this sensor is for detecting the movable sensing of human body or animal.When sensor is not added with optical lens, its detecting distance is less than 2 meters, and plus after optical lens, its detecting distance can be more than 7 meters.Pyroelectric sensing sensor is as the backlight switch of liquid crystal display screen, when people walks close to, sensor output high level signal, it is amplified to about 5 volts through rearmounted operational amplification circuit, controls NPN type triode and be in saturation, thus turn-on relay, relay is connected to liquid crystal display screen backlight electric power, now backlight is opened, and suitable time-delay about a minute, to be convenient for people to observed data；When people leaves, transducers output low-level signal, audion is in cut-off state, cut-off, and backlight also can be automatically switched off, to reduce power consumption, saves energy.
Noise transducer 3 in collecting unit is used for gathering environment noise index.In the present embodiment, noise transducer module selects electret capacitance microphone collected sound signal, and the small voltage change of capture can be amplified about 100 times by the amplifying circuit being followed by, and exports analog voltage.Single-chip microcomputer this analogue signal of multi collect at short notice is also AD converted, and the multiple analog voltages obtained, through averaging and logarithm regression, obtain the specific size of noise.
PH sensor 2 is for gathering the pH value of rainwater.In the present embodiment, pH sensor uses PH-BTA model, the pH amplifier of this sensor internal is the circuit having standard pH electrode that an energy is monitored by data acquisition unit, and the end of sensor connecting line is that the DIN plug of a BTA plug or a 5-pin is connected with data acquisition unit.In the buffer solution of pH=7, it will produce the voltage of one 1.75 volts；PH value often increases by 1, and voltage increases about 0.25 volt；PH value often reduces 1, and voltage reduces about 0.25 volt.It is 0 to 14 that scope is measured in the design of this pH value sensor, measures range spans big and accurate.After connecting filter circuit, we can measure the analog voltage of pH by the a/d converter that single-chip microcomputer carries, through the i.e. available pH value accurately of extra calibration.
PM sensor 6 is for gathering PM2.5 and the PM10 parameter of environment.In the present embodiment, PM sensor uses DSM501, and this sensor uses particle counting principle.Arranging exhaust system in module, unlatching can make extraneous air enter inside modules, when passing through if any particles such as dust, blocks LED light source, and photoelectric detector can't detect light source, and photoelectric detector can electronegative potential output;As passed through without particle, then photoelectric detector high potential output.The data of last PM2.5 and PM10 pass to single-chip microcomputer by serial ports, carry out suitable data process through single-chip microcomputer and i.e. can get current PM value.The advantages such as this sensor has low in energy consumption, and volume is little, it is easy to installs and safeguards, measurement data is accurate, and interface is simple.
Temperature sensor 7 is used for gathering ambient temperature parameter.In the present embodiment, temperature sensor uses DS18B20, this temperature sensor has the dual transfer mode of single bus, actual application only need to connect a pull-up resistor at signal end, getting final product thermometric without other any external component, and its volume is little, thermometric is accurate, ultimate resolution reaches 12, temperature-measuring range-55 DEG C ~+125 DEG C.Measurement result serially transfers in 9 ~ 12 bit digital quantity modes, supports multiple spot networking function, and multiple DS18B20 can be connected in parallel on unique three lines, distinguishes each temperature sensor by internal 64 lasered ROMs.
Control panel 4, for controlling equipment, is manipulated by panel so that display screen shows the change curve of many kinds of parameters different time under the control of single-chip microcomputer, plays prediction environment Parameters variation function.
Single-chip microcomputer of the present utility model can also arrange fixing signal language, and the display of signal language when being carried out by display screen according to environment detection result, such as show " heat; prevention heatstroke " when temperature is too high, display " careful acid rain " when rainwater pH value being detected less than 4.7, display " haze weather, careful anti-haze " etc. when PM2.5 value is higher than 75.
This utility model can not only provide multiple ambient parameter accurately for people, rational weather prompting language can be provided again according to surveyed parameter, and by memorizer, surveyed ambient parameter is stored, use for scientific research, also surveyed data can be shown on a display screen by curve form, reach the purpose changed that predicts the weather, extend in daily ambient parameter measurement, with the daily life being convenient for people to.
Claims (3)
1. can memory ring environment parameter measurement analyser, including housing (11), it is characterized in that: in described housing, be provided with single-chip microcomputer (9), memorizer (8) and accumulator, the front end face of housing (11) is provided with pyroelectric sensing sensor (1), control panel (4) and display screen (5), the top end face of housing (11) is provided with solar panel (10), and housing is additionally provided with the collecting unit for measuring ambient parameter；The outfan of described solar panel connects the input of accumulator, and the outfan of accumulator connects the power end of display screen through pyroelectric sensing sensor；The input of described single-chip microcomputer connects collecting unit and control panel respectively, and the outfan of single-chip microcomputer is connected with display screen and memorizer respectively.
The most according to claim 1 can memory ring environment parameter measurement analyser, it is characterised in that: described collecting unit include being connected with single-chip microcomputer input respectively for gathering the noise transducer (3) of environment noise index, for gathering the pH sensor (2) of rainwater pH value, for gathering the PM sensor (6) of environment PM2.5 and PM10 parameter and for gathering the temperature sensor (7) of ambient temperature parameter.
The most according to claim 1 can memory ring environment parameter measurement analyser, it is characterised in that: described single-chip microcomputer is STM32F103ZET6 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620320417.0U CN205506227U (en) | 2016-04-18 | 2016-04-18 | Can remember environmental parameter measurement analyzer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620320417.0U CN205506227U (en) | 2016-04-18 | 2016-04-18 | Can remember environmental parameter measurement analyzer |
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| CN205506227U true CN205506227U (en) | 2016-08-24 |
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| CN201620320417.0U Expired - Fee Related CN205506227U (en) | 2016-04-18 | 2016-04-18 | Can remember environmental parameter measurement analyzer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639809A (en) * | 2021-08-19 | 2021-11-12 | 上海市政工程设计研究总院（集团）有限公司 | Air flow indicator |
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2016
- 2016-04-18 CN CN201620320417.0U patent/CN205506227U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639809A (en) * | 2021-08-19 | 2021-11-12 | 上海市政工程设计研究总院（集团）有限公司 | Air flow indicator |
| CN113639809B (en) * | 2021-08-19 | 2023-12-26 | 上海市政工程设计研究总院（集团）有限公司 | air flow indicator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20170418 |
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| CF01 | Termination of patent right due to non-payment of annual fee |