With the increasing demand for monitoring road and bridge loads in modern traffic management, Weigh-In-Motion (WIM) technology has become an essential tool for traffic management and infrastructure protection. Enviko's quartz sensor products, with their excellent performance and reliability, have been widely applied in WIM systems.
Principles of Quartz Weigh-In-Motion (WIM) Algorithms
The core of the quartz Weigh-In-Motion (WIM) system is to measure the pressure exerted on the road surface by vehicles in real-time using quartz sensors installed on the road. Quartz sensors utilize the piezoelectric effect to convert pressure signals into electrical signals. These electrical signals are amplified, filtered, and digitized, ultimately used to calculate the weight of the vehicle.
Enviko's quartz sensors applied in WIM systems possess high sensitivity and wide frequency response characteristics, enabling them to accurately capture the instantaneous pressure changes as vehicles pass over them. Additionally, quartz sensors have excellent temperature stability and long life, maintaining stable performance in various harsh environments.
Steps of the Weigh-In-Motion (WIM) Algorithm
1.Signal Acquisition: Capture the pressure signals exerted by passing vehicles using quartz sensors, converting these signals into electrical signals and transmitting them to the data acquisition system.
2.Signal Amplification and Filtering: Amplify and filter the acquired electrical signals to remove noise and interference, retaining useful weight information.
3.Data Digitization: Convert analog signals into digital signals for subsequent processing and analysis.
4.Baseline Correction: Perform baseline correction on the signals to remove zero-load offset, ensuring measurement accuracy.
5.Integration Processing: Integrate the corrected signals over time to calculate the total charge, which is proportional to the vehicle's weight.
6.Calibration: Use pre-determined calibration factors to convert the total charge to actual weight values.
7.Weight Calculation: If multiple sensors are used, sum the weights from each sensor to obtain the total vehicle weight.
Relationship Between Algorithms and Accuracy
The accuracy of the Weigh-In-Motion (WIM) system largely depends on the algorithms used. Enviko's quartz sensors ensure weight measurement accuracy through high-precision signal acquisition and processing. The precision and efficiency of the data processing algorithms directly impact the final weighing results. Advanced signal processing and data analysis algorithms can effectively improve weighing accuracy and reduce measurement errors.
Specifically, the accuracy of signal acquisition, the effectiveness of noise filtering, and the precision of integration and calibration processes are key factors affecting weighing accuracy. Enviko's quartz sensors excel in these areas, ensuring the high accuracy and reliability of WIM systems through advanced algorithms and high-quality hardware.
Relationship Between Installation and Accuracy
The installation position and method of quartz sensors significantly impact the measurement accuracy of the WIM system. Sensors should be installed at key positions in the vehicle's path to ensure accurate capture of maximum pressure changes. During installation, it is essential to ensure close contact between the sensors and the road surface to avoid measurement errors due to improper installation.
Additionally, environmental factors such as temperature, humidity, and ground flatness can also affect the sensor's performance and measurement accuracy. Although Enviko's quartz sensors have excellent temperature stability, appropriate compensation measures are still needed under extreme temperature conditions to ensure accurate measurement results.
Regular calibration and maintenance are also essential to ensure the long-term stable operation of the sensors. Through professional installation and maintenance, the performance of Enviko quartz sensors can be maximized, providing accurate and reliable dynamic weighing (WIM) data.
Conclusion
The application of Enviko's quartz sensors in dynamic weighing (WIM) systems offers efficient and reliable solutions for traffic management and infrastructure protection. Through precise signal acquisition, advanced algorithm processing, and professional installation and maintenance, quartz dynamic weighing (WIM) systems can achieve real-time monitoring and management of vehicle weight, effectively reducing road and bridge wear and tear and improving traffic management efficiency. With continuous technological advancements, Enviko quartz sensors will play an increasingly important role in WIM systems, providing a solid foundation for the development of intelligent transportation.
Enviko Technology Co.,Ltd
E-mail: info@enviko-tech.com
https://www.envikotech.com
Chengdu Office: No. 2004, Unit 1, Building 2, No. 158, Tianfu 4th Street, Hi-tech Zone, Chengdu
Hong Kong Office: 8F, Cheung Wang Building, 251 San Wui Street, Hong Kong
Post time: Aug-07-2024
