PEDESTRIAN SIGNAL SYSTEM FOR THE VISUALLY IMPAIRED AND METHOD FOR CONTROLLING SIGNAL SYSTEM USING THE SAME

摘要

A signal lamp system for the visually handicapped and a method for controlling a signal lamp are provided to raise a safety level for the visually handicapped by controlling a pedestrian signal. A signal lamp system for the visually handicapped includes first and second sensor network nodes(100,200). The first sensor network node is implemented at a signal lamp to control the signal lamp. The first sensor network node transmits a turn-on state of the signal lamp. The second sensor network node transmits a control request signal from the visually handicapped to the first sensor network node and receives the turn-on state of the signal lamp. The second sensor network node notifies the visually handicapped of the turn-on state of the signal lamp. The first and second sensor network nodes communicate with each other by using an RF(Radio Frequency) communication scheme.