| 摘要 |
PURPOSE:To perform the data reception with good quality, by transmitting questionnaires sequentially from a fixed station to a mobile station in polling system, and detecting the response data without error at the central station unit among those in simultaneous reception with a plurality of fixed station or obtaining optimum data through the collation of the data of a plurality of stations. CONSTITUTION:The telegraphic message of questionnaire type is transmitted by sequential call-out from the most suited station among the fixed stations A, B, C to a plurality of mobile stations. The response from a mobile station is simultaneously received with the fixed stations A, B and C, and the result of reception is collected the central control station A by means of the exclusive line with good quality such as wired lines or microwave lines, and the optimum data can be obtained by the method such as error correction and collation and decision by majority. |
