Design Of Comprehensive Monitoring System Of The Repeater Which Selecting Frequency Automatically

As the development of mobile communication, especially the coming of 3G,The number that the repeater controlling system want to supervise is more and more. And the request of real-time is more and more high. As a result the controller can't be a better choice nowadays. Now the shortage of controlling center is lack of much more number of control and the inefficient of operation. Nowadays the repeater of selecting frequency can't not change the frequency in time as the frequency of area has changed.This paper selects TMS320LF2407A as the controller's CPU for its'cost and the development of control. We have design the circuit board which is based on the TMS320LF2407A,Which can get the signal and communicate with center control, according to the control system ,we have write the program of terminal control by the CCS. As the TMS320LF2407A have the sixteen channels which is ten bit. We have not the necessary to extend the A/D convert, so the board's size reduce to sixty percent of the original board, and according to the control management protocol, we have finish the software of center control by the VB and ACCESS.This paper have discuss the way that how to do selecting frequency automatically from the cost and efficiency in order to solve the problem that the selecting frequency repeater can't change it's frequency as the base station's frequency change. We use control center to get the frequency signal of the area of repeater ,and send the short message to change the frequency of the repeater .The function of selecting frequency automatically can make the mobile network better.