Taking a construction site as an example, there are nine analog cameras at the front end, which are connected to the site monitoring room by optical fibers. Now I want to transmit these 9 video signals to another monitoring room. I have separated the railways by trains. Railways have various sources of interference, so it is not practical to use analog wireless transmission equipment directly, and it can only be implemented in the form of a wireless bridge. A distance of no more than one kilometer can be used to transmit with the LA-5830F wireless bridge in Lai'an. Signals must be converted. The signal from the optical transceiver is connected to two 4-way encoders and one 1-way encoder. Then use the switch to concentrate the signal from the encoder and then use a LA-5830F wireless bridge to transmit the signal. In the new monitoring room, a LA-5830F wireless bridge was used to receive the signals from the old monitoring room, and then connected to the switch. The signals coming out of the switch were converted into analog signals by 9 single-channel decoders. After connecting to the DVR, store it and display it on the wall.
After such transmission, there is no need to destroy the original monitoring system, and no wiring is required, which will not affect the environment. Using a 5.8G-band wireless bridge can effectively avoid some common interferences. The entire transmission is also very stable, convenient and simple. However, attention should be paid to the following: As there is a road between the old monitoring room and the new monitoring room, there may be a train passing through. Therefore, the altitude must be set higher than the height of the train to avoid the obstruction.
The electric vehicle brake is a kind of motor driven control vehicle brake, general group
It should be made up of the car stop pawl, connecting rod mechanism, track, reducer, motor and other parts.Although the electrodynamic stopper than manual type stopper on the flexibility of operation had the very big enhancement, but because in the actual production, due to the underground water, the more motor sometimes burned by water, the serious influence production and safety, so people of past electrodynamic stopper has carried on the corresponding reform.Panluo iron mine, fujian province Chen Weiling co., LTD will change stopper drive electric draw stem to simple structure, and installed on the trip switch, make the whole device has the self-locking function, which can effectively prevent reverse phenomenon
Electric Rail Car Arrester,Hydraulic Tramcar Arrester,Car Arrester,Air-Operated Car Arrester
Jining Dongda Electromechanical Co.,Ltd. , https://www.coal-mine-equipment.com