After the seedlings are drawn together, the seedling beds should be ventilated, and the ventilation volume should be gradually increased as the weather warms. The seedlings should be subjected to low-temperature exercise to improve the cold resistance of the seedlings and adapt to the outdoor low-temperature environment.
Adding protection facilities to increase protection facilities can take two approaches: First, build wind barriers. The wind barrier has a blocking effect on the cold air and prevents the surface from further cooling. The second is planting trenches and covering the mulch. When planting vegetables in early spring, the ditching planting method can be adopted, and the ditch depth requires more than the height of the seedlings, and then the dura can be covered with a plastic film.
Temporarily warming the production of protected areas, in the cold current, in the nursery shed or production shed by means of building a simple coal stove or install lights for temporary heating, in order to increase the temperature inside the shed to prevent freezing damage.
When the well water is poured, the weather is clear, and there is no wind or breeze at night. The temperature drops rapidly. Especially when the local surface temperature falls below 0°C and frost occurs, a large amount of well water can be poured on the ground to greatly increase the well water. Geothermal. This method can increase the ground temperature from 0 °C to 8 °C, to avoid frost.
On a frosty night of smoke, fume smoke in the field can effectively reduce or avoid frost disasters. However, there are two things to note: First, the smoke and fire points should be made dense enough to basically cover the whole park; second, the lighting time should be appropriate. It should be ignited in the upper wind direction, from midnight to 2 o'clock in the morning, until the sunrise, there is a smoke envelope. On the ground, this works best.
Appropriate amount of water spray Before the frost occurs, spraying the water on the surface of the plant with a sprayer can slow down the body temperature and increase the content of water vapor in the atmosphere. The water vapor condenses heat to mitigate frost damage.
Cultivating the cultivators before the frost in a timely manner can reduce the degree of frost damage. Because the spring temperature gradually rises, after the clay is loosened, more solar energy can be absorbed and stored. Once the frost comes, the frost can be mitigated because some of the heat has accumulated in the soil.
Indoor Monitor
Indoor monitor is one part of intercom system, and it is also a very important part. Video Door Phone and indoor monitor are connected in the same POE Switch to realize information transmission through local area network (LAN). When the visitor calls the indoor monitor on the video door phone, the indoor monitor will receive the call information in the corresponding apartment, the resident can check the situation at the door and see who is coming through the indoor monitor, and then can choose to talk with the visitor or not. The resident can choose whether to open the door for the visitor and if the resident knows the visitor, resident can also open the door for visitor directly through the indoor monitor. It is very safe and convenient and it can improve our quality of life while protecting our home.
Our indoor monitor is powered through the POE switch, no additional power supply is required, and the wiring is simple. Our indoor monitor uses linux system to work with our full digital video door phone, and the calling .monitoring and intercom are very stable and fast. At the same time, the indoor unit also has a variety of functions, which can monitor the video door phone at any time and view the environment at the door; support the connection of 8 defense zones, such as smoke detectors, doorbells, emergency buttons, etc.; support the connection of elevator control devices, which is very convenient and safe; support viewing visitors record, even if residents are not at home, they will not miss any information; the most special function is that it only supports mutual intercom, and each indoor unit can call and intercom each other, which is very convenient.
In the picture is our best selling indoor monitor - MK-888QFJ7F,
There are some specification of indoor monitor for your reference:
1. 7 inch Monitor
2. Calling, intercom, unlocking, monitoring
3. High quality screen with touch screen
4. Night vision, LINUX System
5. Ethernet RJ45 connector
6. Full Digital TCP/IP intercom
7. Check the log
8. Call the elevator
9. Eight defense zones
10. Support POE 24V non-standard POE switch
11. Dimension:215*136*17(mm)
12. Install Method : Wall/magnetic hanging Install
We are a factory specializing in the production, manufacture and research and development of video door phones with 11 years experience. Our factory is located in Zhuhai China. We have our own R&D team, we can provide professional products and services. We have different Access Control System products for different customers and markets, for example, Access Control Keypad.video door phone, Audio door phone, 4-wire video doorbell and so on, if you are interested, please feel free to contact me, it is my pleasure to share our catalog with you.
Indoor Monitor,Video Doorbell,Security Camera Door Bell,Video Intercom Doorbell
Zhuhai Mingke Electronics Technology Co., Ltd , https://www.mingke-tech.com