| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a congestion condition notification system which obtains a congestion condition in each areas using a digital broadcasting. <P>SOLUTION: In a congestion condition grasping system which is connected to a portable digital broadcast receiving apparatus 100 and an area information management server 200, if the area information management server 200 receives terminal position information obtained by a GPS function in the digital broadcast receiving apparatus 100 from the digital broadcast receiving apparatus 100, a communication record registration means 240 refers an area definition information memory means 210 using the received terminal position information, specifies the area, and stores the communication record corresponding to the specified area. Succeedingly, a communication record totalization means 250 totals communication records memorized in an area classified communication record memory means 220 classifying by each areas and excluding overlapping for each terminals, and a number of terminals is obtained. Next, a congestion condition decision means 260 decides a congestion condition by the obtained number of terminals, and a congestion condition notification means 270 transmits the congestion condition to the digital broadcast receiving apparatus 100. <P>COPYRIGHT: (C)2011,JPO&INPIT |
