In recent years, the abnormal weather of climate has caused great damage to the elevator facilities, especially the freezing rain weather has caused serious damage to the elevator facilities such as the elevator tower. Because of the high voltage elevator towers are in position to sparsely populated, and some of the elevator facilities in no man's land, so artificial inspection become very difficult, especially at night is unable to see the equipment condition, so in order to prevent the lift tower freezing rain or destructive damage, using technologies such as remote video monitoring system of elevator facilities online 24 hours monitoring by the elevator service as an important work.

Project difficulties and solutions

Elevator towers are located in remote areas, and many of them are in the mountains. Generally speaking, there is no need to monitor the plain area. In addition, although there is electricity on the elevator towers, they cannot be used. So solar power is needed. The most efficient way to transmit is to use wireless transmission, because the elevator towers are located at the high points. There is little problem with visibility.

In addition, there must be a visual position relationship between adjacent elevator towers. Cascaded links can be used by wireless. At most, 9 cascaded links are designed. Wireless product selection

In general, three types of equipment are selected for this project. The backbone network generally adopts 23 series of products, point-to-multipoint 90 and 18 series are adopted for close convergence, and 18 series are adopted for point-to-point backbone. Generally,

Point-to-point and point-to-point networking. Point to point is the majority.