Case of Crane Monitoring

Background

Due to the safety accidents occur frequently by the wrongdoings of cranes, that’s caused huge loss of life and property as the extensive using in construction industry these years. It has been realized that it’s necessary to monitor the cranes process, controlling the dangers and the security to prevent and decrease the safety accidents. Our company, Jiangmen Topda Electronic Co.,Ltd , had been making effective use of available resources,saving investment, taking full advantage of wireless monitoring system,unifying the advanced wireless transmission technology, finally worked out a high -performance but low-price solution for the need of controlling and managing the cranes security.We are going to provide users with the reliable and efficient wireless monitoring system and promise technical guarantee to the enterprise safety management.

5 cranes are placed on the construction spot. The farthest crane is 2km away from the control room.
Each crane is set up with a 130W 960P HD camera which amounts 3-4M bandwidth per one.
Hindrance is among the points.
Lots of interference from 2.4G channel.
It’s had to think over that increase equipments to protect the electronic devices and stable the electricity system, for a lot of large-scale machines out there.
Protect the devices from the lightning because of the height.

Demand Analysis

It’s necessary to control the dangers and the security effectively by the real-time monitoring and recording the operation information, to prevent and decrease the safety accidents.
Track the activities and offer the HD face recognition to avoid the construction materials stealing.
Through switching automatically or manually the TV wall which formed by four 32 inch LCD monitors.
Ensure the clear image, no delay, no compression loss, low cost and simple installation.

Conceptual Analysis

The control center and the cranes work with 300Mbps wireless device by point to point or point to multi-point transmission.
Five or Six 960P camera can be carried by one 300Mbps wireless bridge, since the bandwidth at around 45MB/s in the range of 2km.
Exploiting the relays to deal with the hindrance and invisible spots, but bandwidth decreases half if do the relays repeatedly.
Using 5.8G wireless device to turn off the interference of 2.4G channel.

Take the lightning protection on the cranes and fit the ground lead(lightning protection of alternating current,direct current,antennas, feeders). Lightning rods are needed to set on the top of the cranes, fitting the ground lead well to flow the lightning into the ground. Good ground leading bring that mobile device is protected from lightning effect and working stably. It also avoid the electromagnetic interference by shielding.

Front Installation Design Scheme

360o camera, wireless CPE, regulator, lightning protection system and supports make up the front part.
For the normal working the front camera and wireless CPE should not be installed on the crane booms. It’d better to set up on the climbing, lifted as the cranes rising,which gets power supply and controlled because near the control center but no influence to work..