Before the dynamic Floor Scale is developed, the weight of the vehicle is usually obtained in a static weighing manner. Although the accuracy of the static weighing of the vehicle is very high, the efficiency of the vehicle’s static weighing is extremely low. China has developed a unique technology in the dynamic weighing of vehicles.
By examining the technical requirements of the dynamic Floor Scale, two key factors influencing the accuracy grade are found, one is the quality of the approach and the second is the running speed. If the dynamic Floor Scale has a nominal accuracy level, the relevant units in accordance with the relevant technical requirements to do further attempts and research.
One, several common dynamic Floor Scale
Floor Scale dynamic Floor Scale
Floor Scale weighs the table between the four corners and the foundation by the strain sensor connected, the working principle is to weigh the weight of the axle to the strain sensor, displayed on the weighing instrument, the vehicle weight of each axis, And then get the total vehicle weight. In the course of many years of use, for the Floor Scale platform developed a lot of ways to avoid tolls, such as jump scales, scales, take S-shaped, through the edge and so on. Despite the high cost, but because of the obvious problems in the anti-cheating, scale platform Floor Scale has been unable to fully meet the needs of expressway charges.
2. Double scale desktop dynamic Floor Scale
The dual scale desktop Floor Scale is one of the solutions, the same principle and the scale of the same Floor Scale, but the width is almost twice the scale desktop, which effectively solve the scale vehicle scale, take the S-shaped problem, and weighing Performance and service life have been improved, in the use of a higher rating. The problem of avoiding the tolls, which is similar to that of a vehicle, is still not solved, and there is still a shortage of anti-cheating.
Second, the dynamic Floor Scale for the existence of the problem
1. Equipment bulky, in the toll station site to install dynamic weighing more difficult, long equipment placement, maintenance of high complexity.
2. The stability of the equipment interference costs. System test data and real-time models are mainly as follows: First, single-twin type to determine the wrong; Second, multi-axis or less axis. In the face of the above situation, in some cases the toller can be adjusted by modifying the limit to adjust, but limit the changes after the two charges will change, the driver will think that the charges are man-made operation, easily lead to contradictions; Can only let the vehicle back to re-weighed, causing the vehicle to line up, even in the process of reversing the accident.
3. Weighing differences become the key to new problems. When the vehicle carries a different charging lane through different toll stations and even the same toll station, the measurement data will repeatedly show a huge deviation of the weighing value. And the truck driver is in accordance with their own way and the toll station charges the theory, often resulting in disputes.
Third, the application of dynamic Floor Scale
1. Traffic survey of roads. Using the dynamic weighing system and the attached car sensor to calculate the number of vehicles in a certain lane, the type of vehicle and the weight of which part of the distribution, according to the statistics to get a road traffic conditions. As a basis for the development of road planning and design, road maintenance and road overhaul of the plan.
2. Overload transport control. Road managers to establish road overloading law enforcement station, after a sophisticated, severe inspection of overloaded vehicles on the road pavement to form a better protection, so that vehicles on the road driving more secure.
3. Used in vehicle weighting charges. Use a dynamic weighing system to flow the vehicle on the road. The implementation of the load by the charges, the perfect interpretation of the fair and just the social principles, more support is more payment, less load is less payment. For overrun transport to increase the charges, the effective way to stop the overloading of trucks over the road caused damage. Greatly protect the high-speed road pavement and bridge, to stop the continued growth of overrun transport trucks on the road pavement, the bridge of excessive persecution, and thus greatly enhance the safety of vehicle driving performance.
With the increasing accuracy of weighing accuracy, equipment cost, construction schedule, maintenance complexity, anti-cheating effect and equipment stability, the axle-type dynamic car will be gradually promoted and will lead the dynamic load A new era.
