Abstract: A tire pressure monitoring system (12) for a spare tire of a vehicle (10) includes an indicator (52) and a timer (44) that generates a first time signal corresponding to the time the spare tire is used as a rolling tire and a second time signal corresponding to a time the spare tire is stowed. The temperature sensor (34) generates a temperature profile and a controller (22) that is coupled to the indicator, the timer, and the temperature sensor generates a spare tire warning signal in response to the temperature profile, the first time signal, and the second time signal.

Abstract: A system for monitoring the location of individuals, such as parolees, includes a wearable device worn by the individual and a portable device operatively coupled to the wearable device. The portable device is operatively coupled to a monitoring system through a wireless telephone network. The portable device transmits periodically encrypted location information as well as status information across the wireless network to the monitoring system. The monitoring system tracks the location of the individual and alerts the appropriate authorities when the individual violates a rule, such as a condition for parole. The portable device increases the time between transmissions when the individual is within a specified home location and reduces the time between transmissions when outside the specified location.

Abstract: In a moving object tracking system, on-board equipment and equipment disposed in a management center are connected to each other by way of a communication network. The equipment disposed in the management center receives current position information about the current position of a moving object from the on-board equipment and keeps track of the moving object. The on-board equipment has a plurality of communication units for communicating with the equipment disposed in the management center in different manners, and a communication switching unit for selecting an optimum communication unit from among the plurality of communication units based on the current position information when detecting a theft of the moving object.