CN205982215U - Wireless air humidity collection system of solar energy power supply - Google Patents

Abstract

The utility model provides a wireless air humidity collection system of solar energy power supply, includes moisture -proof case, humidity sensing element, master control integrated circuit board, antenna and solar panel. The master control integrated circuit board includes digital analog conversion circuit, singlechip, wireless transmission module, low -power source conversion chip and electric capacity energy storage module. The digital analog conversion circuit exports humidity sensing element's analog signal transition to singlechip for data signal, the data signal of digital analog conversion circuit output is responsible for handling and saving by the singlechip. The utility model provides a drawback that exists in the battery powered scheme of tradition, real -time on -line monitoring natural draft cooling tower advances tower air humidity, and data record is accurate, signal transmission is stable, is convenient for arrange the multiple spot simultaneous acquisition simultaneously, will greatly save on -the -spot remote wiring cost, helps improving natural draft cooling tower performance index monitoring level.

Description

A solar-powered wireless air humidity acquisition device

technical field

The utility model relates to a wireless air humidity collection device powered by solar energy, which belongs to the field of performance index monitoring of natural ventilation cooling towers.

Background technique

The thermal performance test of the natural draft cooling tower of the power station is one of the test items generally concerned by the power plant. The measurement of air parameters entering the tower is an important part of the monitoring of cooling tower performance indicators. With the digitalization of thermal instruments, the development of solar power supply technology and wireless communication technology, the use of solar power to realize the wireless transmission of data collection and monitoring of air humidity entering the natural ventilation cooling tower can solve the disadvantages of the traditional battery power supply scheme. Real-time online monitoring of the air humidity entering the natural ventilation cooling tower, accurate data recording, stable signal transmission, and easy to arrange multi-point simultaneous acquisition, will greatly save the cost of long-distance wiring on site, and help improve the monitoring level of natural ventilation cooling tower performance indicators .

Contents of the invention

The purpose of the utility model is to provide a wireless air humidity acquisition device powered by solar energy in order to solve the problems existing in the humidity test of the natural ventilation cooling tower of the power station.

The technical solution of the utility model is a wireless air humidity collection device powered by solar energy, which includes a moisture-proof casing, a humidity sensing element, a main control board, an antenna and a solar panel. The probe end of the humidity sensing element is placed outside the moisture-proof casing; the main control board is built in the moisture-proof casing, and the humidity sensing element is connected to the analog-to-digital conversion circuit of the main control board; the output terminal of the solar panel Connect to the capacitive energy storage module of the main control board; connect the antenna to the wireless transmission module of the main control board.

The main control board includes a digital-to-analog conversion circuit, a single-chip microcomputer, a wireless transmission module, a low-power power conversion chip and a capacitor energy storage module; the wireless transmission module is provided with a radio frequency interface, and is responsible for transmitting the data stored by the single-chip microcomputer to the computer , the radio frequency interface is connected to the antenna; the digital-to-analog conversion circuit converts the analog signal of the humidity sensing element into a digital signal and outputs it to the single-chip microcomputer; the single-chip microcomputer is responsible for processing and storing the digital signal output by the digital-to-analog conversion circuit; the solar energy The board is arranged on the surface side of the shell, and the capacitive energy storage module connected to the solar panel is connected to the low-power power conversion chip; the low-power power conversion chip is respectively connected to the single-chip microcomputer, the digital-to-analog conversion circuit and the wireless transmission module, and supplies power to them.

The humidity sensing element adopts a humidity sensor imported from Switzerland, with a measuring range of 0-100%RH, a resolution of ±0.1%RH, and an accuracy of ±2.0%RH;

Described solar panel selects weak light monocrystalline solar panel for use;

The capacitive energy storage module includes an electric double layer capacitor, a Zener diode, a power resistor and a corresponding equalization circuit;

The power supply input end of the low-power conversion chip is connected to the capacitor energy storage module to provide corresponding working voltages for each functional module on the main control board; the moisture-proof shell meets the IP67 standard.

The beneficial effect of the utility model is that the utility model solves the disadvantages of the traditional battery power supply scheme, real-time online monitoring of the air humidity of the natural ventilation cooling tower entering the tower, accurate data recording, stable signal transmission, and convenient arrangement of multi-point simultaneous acquisition, It will greatly save the cost of long-distance wiring on site, and help to improve the monitoring level of performance indicators of natural draft cooling towers.

Description of drawings

Figure 1 is a schematic diagram of the internal composition of the utility model.

detailed description

The following content will describe in detail the specific implementation of the utility model in conjunction with the accompanying drawings:

Referring to Figure 1, it is a schematic diagram of the internal composition of the utility, which includes a moisture-proof casing, a humidity sensing element, a main control board, an antenna and a solar panel. The probe end of the humidity sensing element is placed outside the moisture-proof casing; the main control board is built in the moisture-proof casing, which has a digital-to-analog conversion circuit, a single-chip microcomputer, a wireless transmission module, a low-power consumption power conversion chip and Capacitive energy storage module; the wireless transmission module is provided with a radio frequency interface, which is responsible for transmitting the data stored by the single-chip microcomputer to the computer, and the radio frequency interface is connected to the antenna; the digital-to-analog conversion circuit converts the analog signal of the humidity sensing element into The digital signal is output to the single-chip microcomputer; the single-chip microcomputer is responsible for processing and storing the digital signal output by the digital-to-analog conversion circuit; the solar panel is arranged on the surface side of the casing, and is sequentially connected with the capacitor energy storage module and the low power storage module in the main control board. The power consumption conversion chip is connected, and is responsible for supplying power to the humidity sensing element, digital-to-analog conversion circuit, single-chip microcomputer, and wireless transmission module.

The humidity sensing element adopts a humidity sensor imported from Switzerland, with a measuring range of 0-100%RH, a resolution of ±0.1%RH, and an accuracy of ±2.0%RH; Electric layer capacitors, Zener diodes, power resistors and corresponding equalization circuits; the power input end of the low-power power conversion chip is connected to the capacitor energy storage module to provide corresponding working voltages for each functional module on the main control board; moisture-proof shell Comply with IP67 standard.

Claims (6)

1. a kind of solar powered wireless air humidity collector is it is characterised in that described device includes moisture-proof case, humidity Sensing element, master control board card, antenna and solar panels；The sound end of described humidity sensing element is placed in outside moisture-proof case；Described Master control board card is built in described moisture-proof case, and humidity sensing element connects the analog to digital conversion circuit of master control board card；Solar panels Outfan connect master control board card capacitance energy storage module；Antenna connects the wireless transport module of master control board card；

Described master control board card includes D/A converting circuit, single-chip microcomputer, wireless transport module, low-power dissipation power supply conversion chip and electric capacity Energy storage module；Described wireless transport module is provided with radio frequency interface, is responsible for the data transfer storing single-chip microcomputer to computer, should Radio frequency interface connects described antenna；It is defeated that the analogue signal of humidity sensing element is converted to digital signal by described D/A converting circuit Go out to single-chip microcomputer；Described single-chip microcomputer is responsible for processing and store the digital signal of D/A converting circuit output；Described solar panels set It is placed in housing table side, the electric capacity energy storage module connecting solar panels connects low-power dissipation power supply conversion chip；Low-power dissipation power supply is changed Chip connects single-chip microcomputer, D/A converting circuit and wireless transport module respectively, and powers to them.

2. a kind of solar powered wireless air humidity collector according to claim 1 is it is characterised in that described wet Degree sensing element adopts Switzerland's imported with original packaging humidity sensor, measurement range 0～100%RH, resolution ± 0.1%RH, precision ± 2.0%RH.

3. a kind of solar powered wireless air humidity collector according to claim 1 it is characterised in that described too Sun can plate be low light level monocrystalline type solar panel.

4. a kind of solar powered wireless air humidity collector according to claim 1 is it is characterised in that described electricity Hold energy storage module and comprise electric double layer capacitance, Zener diode, power resistor and corresponding equalizing circuit.

5. a kind of solar powered wireless air humidity collector according to claim 1 is it is characterised in that described master Control board is provided with low-power dissipation power supply conversion chip, and low-power dissipation power supply conversion chip power input connects described electric capacity accumulation of energy mould Block, provides corresponding running voltage for each functional module on master control board card.

6. a kind of solar powered wireless air humidity collector according to claim 1 is it is characterised in that described prevent Damp shell meets IP67 standard.