It is becoming very popular massive transportation systems where they built stations where the long articulated buses stop to load people. We already installed more than 200 of these. What we provide and install, are the sliding doors with their TX-RX system.
Each station has about 12 sliding doors, one side of the station has 6 doors and the other side the other 6 doors. Each bus route has about 20 stations, and there are more routes being built each year in several countries in South America.
The doors are opened by radio frequency ( NO sensors) While the passengers are inside the station, all doors are closed. Each bus has 3 doors, and the length of the bus is approximately 12 meters , they are articulated When the bus arrives at the station it stops parallel and side to side to 3 automatic doors of the station. When the driver press the pushbutton to open the bus doors, a transmitter inside the bus sends signal to the receiver connected to the 3 automatic doors , and both the bus 3 doors, and station 3 automatic sliding doors will open coordinated at the same time. Then the passengers will go inside the bus. When ready and loaded, the bus driver closes the bus doors, and the TX transmitter will send the signal to close the 3 automatic sliding doors of the station.
There will be many buses, and each bus will be equipped with a multichannel 4 channel TX Transmitter, and each 3 automatic sliding doors in the station will be equipped with one 1 RX receiver. ( remember there are 12 automatic sliding doors in each station, so there will be 4 different RX receivers with different frequency ) This is why the TX transmitter in each bus has to have 4 channels with 4 different frequencies. In order for the bus driver to select each different frequency from the four, he will have a pushbutton to choose between freq 1/2/3/or 4. When a driver is assigned a route, each morning he will select it with this pushbutton, and then he will stop at the appropriate doors in the station, of all the route.
Function feature of transportation project automatic sliding doors.
1 st . automatic locked when door closed.( Suction magnetic lock set).
2 nd . frequencies for the TX/RX. At 360 Mhz. 290 Mhz. 388 Mhz. 270 Mhz.
3 rd . Buzzer will “bi bi” when door keep moving, or whe