The invention discloses a matrix keyboard for a
detector of a positioning orientating
system, which comprises 6 special functional keys, two luminance control keys, 12 number / control keys, a confirming key, an escape key, a delete key, and a reset key, wherein the 6 special functional keys are as follows: a shift-detecting key, a north-searching key, a navigation key, a demarcating key, a binding key and a self-checking key; the 12 number / control keys are as follows: 0-9 ten number keys, a number switching num key and a symbolic key; the number keyboard can be used as a direction key when the function of number switching num key is not started; data can be inputted normally after the function of number switching num key is started; and a decoding plate is used for converting the key
signal into the code which can be identified by the windows XP operation
system and directly connecting to a keyboard port of the PC104 computer board. By externally connecting the matrix keyboard, the portability and the reliability of the
detector are ensured, thereby ensuring the
butt joint with a vehicle-loaded positioning orientating
navigation system and performing the property test and fault diagnosis.