| 摘要 |
PROBLEM TO BE SOLVED: To provide a flexible signal control device by abolishing a cable between an interlocking master machine and an interlocking slave machine, and wirelessly communicating data. SOLUTION: This signal control device comprises the interlocking master machine 100 comprising a lamp color control part 1 for controlling the lighting of each lamp color of G(green), Y (yellow) and R (red) of a signal lamp 2 and the signal lamp 2; a filter 4 for transmitting only a prescribed color of the signal lamp 2 of the interlocking main machine 100; a photodiode (PD) 5 for converting the transmitted light to electric signal; an amplifier 6 for amplifying the signal with a prescribed threshold; an interlocking control part 7 for starting an internal timer from the amplified signal to control the lighting of each color of G (green), Y (yellow) and R (red) of a signal lamp 8; and the interlocking slave machine 110 comprising the signal lamp 8. COPYRIGHT: (C)2004,JPO
|
