Patent ID: 7362226
Filing Date: 2008-04-22
Classification: H04Q

Abstract:
1. A control system comprising: a plurality of wireless measuring units provided in a surface of at least one of a road, a floor, a floor mat, and a wall surface, each of which wireless measuring units, when receiving a radio signal, uses the radio signal as an energy source to measure a physical quantity, and generates and sends a radio signal having an attribute reflecting the measured physical quantity, wherein each of a plurality of wireless measuring units includes: a transmitter which transmits a radio signal to the wireless measuring units; a receiver which receives radio signals from the wireless measuring units; a storage unit which stores position data of the wireless measuring units in accordance with identification data of the wireless measuring units; a calculation unit which calculates physical quantities on the basis of the radio signals received by the receiver; a recognition unit which recognizes a distribution of the physical quantities calculated by the calculation unit with reference to position data stored in accordance with identification data specified by the radio signals received by the receiver and determines at least one of a presence or absence of the object, a position of the object, and a weight of the object; an identifying unit which identifies a state of an object on the surface on the basis of the distribution of the physical quantities recognized by the recognition unit; a control unit which performs a control depending on the state of the object identified by the identifying unit; and a display which displays information,