In winter or early spring, greenhouses suffer severe losses in the event of a severe cold attack. In order to avoid losses, the following methods can be used for emergency.

1. Covering a multi-layer film can be covered with a double or multi-layered heat-insulating film, or a small shed or a cover film can be placed in the shed, and covers can also be covered with a non-woven fabric.

2. Adding insulation materials such as straw curtains and lugs around the two-story curtain shed to make the buffer layer between the shed and the outside air thicken, which can enhance the shed insulation capacity.

3. Heating and heating furnace A heating furnace with a flue pipe is used for heating during the cold wave. Pay attention to the strict exhaust pipe to prevent leakage of smoke and damage the vegetables.

4. Smoke increase temperature This method warming effect is fast and good. In an acreage of sheds, use 2-3 tile pots and sawdust to ignite fumes in the shed to cool down, or to light a few candles on the east and west sides of the greenhouse, or to pile firewood or charcoal on the walkway to ignite and warm. At the same time, be careful to prevent fire or fire from burning the surrounding plants.

5. Watering and Storage Potential While implementing the above measures, the vegetable field must be filled with water to accumulate potential heat energy, and it can also enhance the cold-resistance effect. The use of electric heating and warm organic fertilizer can also increase the soil temperature.

Industrial Laser Distance Sensor

Industrial Laser Distance Sensor, we also call it secondary development laser distance module, which support TTL level and CMOS. The laser range sensor can be widely used in professional surveying, mapping, construction, robots, hunting arrows, industrial monitoring and automated measurement applications in electricity, transportation, etc. Our laser distance module supports data communication with RS232, USB with a simple adapter. The results of laser distance sensor can be evaluated with Arduino. We are always looking ahead, hoping we can make every measurement simple in life!

Parameters of M703A:

Laser Distance RS232,Arduino Distance Module,Laser Module RS232

Chengdu JRT Meter Technology Co., Ltd , https://www.rangingsensor.com