Patent ID: 7123927

Claim:
A wireless data collecting system comprising: a wireless terminal mounted on a predetermined movable traveling apparatus, and obtaining and wirelessly transmitting operation data of said traveling apparatus; and a base station apparatus receiving said operation data wirelessly transmitted from said wireless terminal, said base station apparatus comprising: storage beacon transmitting means for transmitting storage beacon including at least a predetermined response request signal for said wireless terminal; and operation data receiving means for receiving said operation data from said wireless terminal which has responded to said response request signal, said wireless terminal comprising: data memorizing means for memorizing said operation data obtained from said traveling apparatus; transmission possibility determining means for determining possibility of transmitting said operation data to said base station apparatus; operation data transmitting means for transmitting said operation data in said data memorizing means after transmitting a response to said response request signal when said transmission possibility determining means determines that transmission is possible; and state switching means for switching between a storage wait state where said response request signal is received and a delivery wait state, based on a record of communication with said base station apparatus. wherein said transmission possibility determining means in said wireless terminal determines the possibility of transmitting said operation data, based on the electric field intensity of a signal transmitted from said base station apparatus.