Precise time measuring apparatus based on Zigbee communication

The present invention relates to a precise record measuring apparatus based on Zigbee communication. According to the present invention, the record measuring apparatus comprises: a foothold switch provided at a finish line to transmit an arrival signal when a runner steps on; a wireless transmission...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PARK BYUNGSUN, JEONG SEUNGHYUN, KIM YEOUNGCHANG
Format: Patent
Sprache:eng ; kor
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Beschreibung
Zusammenfassung:The present invention relates to a precise record measuring apparatus based on Zigbee communication. According to the present invention, the record measuring apparatus comprises: a foothold switch provided at a finish line to transmit an arrival signal when a runner steps on; a wireless transmission device provided at a starting line and wirelessly transmitting a start packet simultaneously with an operation of a start button of the starting line; and a measuring device provided at the finish line and measuring a recording time (T_st) from a time point at which the start packet is received to a time point at which the arrival signal is received. The measuring device calculates a delay time (T_ds) of the start packet to compensate for the recording time (T_st), and processes as a record measuring time of a runner (T_rt) a value obtained by subtracting a foothold switch interrupt processing time (T_ie) from the value of compensating the recording time. 본 발명은 지그비 통신에 기반한 정밀 기록측정장치에 관한 것으로, 본 발명에 따른 본 발명에 따른 기록측정장치는, 결승선에 구비되어 주자가 밟는 시점에 도착신호를 전송하는 발판스위치와; 출발선에 구비되고, 출발선의 스타트 버튼의 동작과 동시에 스타트패킷을 무선전송하는 무선송신기와; 결승선에 구비되고, 상기 스타트 패킷을 수신한 시점부터 상기 도착신호가 수신되는 시점까지의 기록시간(Tst)을 측정하는 측정기를 구비하되, 상기 측정기는, 상기 스타트 패킷의 지연시간(Tds)을 계산하여 상기 기록시간(Tst)을 보상하고 상기 기록시간을 보상한 값에서 상기 발판스위치 인터럽트 처리시간(Tie)을 뺀 값을, 주자의 기록측정시간(Trt)으로 처리한다.