| 摘要 |
PROBLEM TO BE SOLVED: To provide a GPS receive rate detection device capable of judging a receive condition of GPS wave in a GPS receiver and presenting a receive rate indicating a ratio at which GPS wave can be received. SOLUTION: A receive judging means 11 judges whether position measuring data can be obtained in a GPS receiver 10 or not, namely, whether GPS radio can be received correctly or not, and a receive rate judging means 12 presents a ratio occupying the numbers at which reception is possible among the execution numbers of GPS receive processing as a receive rate by counting the numbers at which it is judged that reception is possible and the numbers at which it is judged that reception is impossible, respectively, in a receive judging means 11. A user can judge whether the calculation by use of GPS wave is highly reliable or not by visually confirming the presentation. |
