1. The touch sense is a subjective creation type which is different from the vision sense.

2. As for hardware design, this paper designs main controller board, OLED display board and touch sense key controller board of the rescuer.

3. As for software design, this paper designs the program of main controller and that of touch sense key controller from the perspective of modular design.

4. The software design of touching key controller is composed of detecting program of touch sense key, key code transmitting program and monitoring program of battery voltage.

5. So far, most of the researches on map cognition are based on visual sense, but few researches are done on human's other senses such as auditory sense and touch sense.