The present invention relates to a dynamic load measuring device for traffic volume research, which is designed to improve accuracy in traffic volume research by preventing the phenomenon of being recognized as multiple axes (more than 3 axes) when passing a vehicle with a large load in automatic vehicle classification equipment (AVC) for traffic volume research. The implemented dynamic load measuring device comprises: a piezo sensor which measures the load when passing through the vehicle and outputs a load measurement value; a temperature measuring unit which is connected to a data output line of the piezo sensor and responds to a temperature measurement request by recognizing a reset sequence only at voltages higher than an output voltage range of the piezo sensor; a coaxial cable which outputs the measured value output from the piezo sensor and the thermometer sensor and transmits the temperature measurement request signal to a thermometer sensor; and a temperature measurement master circuit which processes the load measurement value by compensating the load measurement value in accordance with the temperature value measured through the coaxial cable, and transmits a temperature measurement request signal to the temperature measurement unit.
교통량 조사용 AVC장비(Automatic Vehicle Classification Equipment)에서 큰 하중의 차량 통과시 다 축(3축 이상)으로 인식하는 현상을 방지하여 교통량 조사에 정확성을 도모하도록 한 교통량 조사용 동하중 계측장치에 관한 것으로서, 차량 통과시 하중을 측정하고 하중 측정값을 출력하는 피에조센서, 피에조센서의 데이터 출력라인에 연결되며, 피에조센서의 출력 전압 범위보다 높은 전압에서만 리셋 시퀀스로 인식하여 온도측정 요구에 응답하는 온도 계측부, 피에조센서 및 온도계측센서에서 출력된 측정값을 출력하며, 온도계측센서에 온도측정 요구신호를 전달하는 동축 케이블 및 동축 케이블을 통해 측정된 온도 값에 따라 하중 측정값을 보상하여 하중 측정값을 처리하고, 온도 계측부에 온도측정 요구신호를 전달하는 온도측정 마스터회로를 포함하여, 교통량 조사용 동하중 계측장치를 구현한다.
Weigh-In-Motion measuring apparatus using traffic volume research
교통량 조사용 동하중 계측장치
2020-08-21
Patent
Electronic Resource
Korean
Weigh-In-Motion measuring apparatus using traffic volume research
European Patent Office | 2020
Traffic-Load Forecasting Using Weigh-in-Motion Data
NTIS | 1997
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