as one or more two way serial port connections or by a two way radio frequency wireless connection such as a bluetooth or a wi fi connection the control module 20 sends commands to and receives messages from the speed and distance detection device 40 and alert module 50 directly with each an typical message received by the control module 20 from the speed distance detection device 40 might be a speed measurement of a vehicle passing through the minimum distance plain control module 20 also sends and receives commands from the gui 30 the control module 20 receives and stores all values set by the gui 30 and uses these values to send commands to the detection device 40 when the control module 20 receives speed measurement signals from the detection device 40 at or above the minimum speed 80 set by the gui 30 at distance 90 it signals the alarm 50 to start a sequence the control module 20 is also coupled to the at least one power source 60 the control module could be powered by direct current or alternating current in either case the connection would consist of a positive wire connection and a negative or ground wire connection between the power source 60 and the control module 20 power is required by this module to operate the processor and storage.