Research on Design of Small Weather Stations

The complete set of automatic weather stations is very expensive, and simple weather stations in the agricultural real-time monitoring are sufficient. Therefore, a small-scale weather station was designed and researched, and the signals of temperature, humidity, air pressure, wind direction, and rain sensor were collected by a single-chip computer. After RS232 to RS485 communication, the signal was transmitted to a PC no farther than a thousand meters away. LabVIEW was used on the PC. Receives and displays data from the serial port and can transfer this data over the network to other computers.

The weather sensor of the small weather station outputs a pulse signal and connects to the external interrupt pin IRQ to count the number of pulses in the external interrupt service routine. The timer counter program is scheduled for five minutes. When the time reaches five minutes, the counter value of the rainfall is first cleared and then cleared to re-count and the backup value is transmitted from the serial port.

At the same time, when the time arrives in five minutes, the AD conversion program is invoked to collect the air pressure and wind speed sensor output values. Call the IIC program to read the temperature and humidity values, read in the wind direction sensor output, and judge the wind direction according to the output line number where the high level is located. Data collection is completed and sent from the serial port to the PC. The PC side displays the corresponding wind direction, wind speed, temperature, humidity, air pressure, and rainfall values ​​in real time, and at the same time, it solves this problem.

At present, the small-scale meteorological station power grid monitoring system can monitor the voltage values, load current values, power values ​​and switch operating status of the downhole power supply system in real time, and can view relevant historical curves, and can set various high and low voltage protection values. Online modification, remote switching through the client's operation, real-time acquisition and processing of downhole power grid data, real-time alarm and positioning of short circuit, overload, overvoltage, leakage and other faults, and the system also reserves video And WEB interface, to facilitate the future expansion of the system.

Stainless Steel Slitting Machine

Jingye precision mechanical slitting machine is specially used for slitting various thin strips, such as copper,
 Aluminum, iron, stainless steel, up to + -0.002mm 

(1). Raw material specifications 1. Material: metal strips such as copper and stainless steel strips. 2. Material width: within 420mm. 3. Material thickness: copper strip 0.05mm∽1.5mm, stainless steel 0.05mm∽1.0mm. 4. The inner diameter of the raw material roll: ¢300mm. 5. Outer diameter of raw material roll:≦¢1500mm.

6. Weight of raw material roll: ≤3000kg.

Img 20171019 191156

Stainless Steel Slitting Machine,Aluminum Slitting Machine,Metal Slitting Machines Precision,Precision Metal Slitting Machiney

Dongguan Liaobu Jingye Precision Machinery Factory , https://www.dgjyjmjx.com