| 摘要 |
<p>A SIGNAL TRANSMISSION DEVICE The present invention relates to a signal transmission device for identifying the presence of an emergency vehicle in the vicinity of another non-emergency vehicle moving in the same direction, using data Communication mechanism, as to avoid accidents and delay in transportation of the emergency vehicles. Such signal transmitting device further comprises of one master and slave component that further transmit short and long-range radio frequency signals in the distance range of 30 – 50 meters and 150 – 250 meters respectively. The master component, as installed in an emergency vehicle, consists of transmitters for long range and short range radio-frequencies, array of infrared signal transmitter, direction sensors and at least one parabolic antenna, to send signals only to slave components. Similarly, the slave component is installed in a non-emergency vehicle, comprises receivers for long range and short range radio frequencies, direction sensors; array of IR receiving sensors and visual and audio signal indicating elements, to receive signals only from master components.</p> |
