Weigh-In-Motion measuring apparatus using traffic volume research

摘要

It relates to a dynamic load measurement device for traffic volume surveys that improves accuracy in traffic volume surveys by preventing the phenomenon of being recognized as multiple axes (more than 3 axes) when passing vehicles with a large load in the AVC device for traffic surveying (Automatic Vehicle Classification Equipment). A piezo sensor that measures the load when passing through the vehicle and outputs the load measurement value, connected to the data output line of the piezo sensor, and a temperature measuring unit that responds to the temperature measurement request by recognizing the reset sequence only at voltages higher than the output voltage range of the piezo sensor. Processes the load measurement value by compensating the load measurement value according to the temperature value measured through the coaxial cable and coaxial cable that outputs the measured value output from the piezo sensor and the thermometer sensor, and transmits the temperature measurement request signal to the thermometer sensor And, including a temperature measurement master circuit that transmits a temperature measurement request signal to the temperature measurement unit, implements a dynamic load measurement device for traffic volume investigation.