The detection of weighing scales is achieved through project implementation, which connects weighing equipment with computers, reads weighing equipment data through computer software programming, exchanges data with the backend database, and realizes real-time display, automatic collection, secure storage, multi-mode query, summary statistics, and printing output of weighing data According to the requirements of enterprise management, the designed weighing management software needs to meet the business processes and requirements of the transportation site, with clear and rigorous program flow; Obtaining weighing data quickly and accurately; Easy to operate, highly automated, and can effectively prevent fraudulent behavior; Convenient and efficient data query and report creation; The system runs stably and reliably for a long time; High data security and reliability. A weighing scale uses a weighing module to sense the pressure changes generated when carrying goods. The weighing module is usually composed of sensitive components such as strain gauges. When pressure is applied to the weighing module, the strain gauges will deform and their resistance value will change accordingly. By measuring the changes in resistance values, pressure signals can be converted into electrical signals, providing a foundation for subsequent data processing and control. The electrical signals output by the signal amplification and weighing module are usually weak and require amplification and conditioning. The amplifier inside the weighing instrument will amplify weak electrical signals to a suitable amplitude for subsequent processing. The weighing instrument will perform filtering, shaping and other operations on the signal to remove sound and interference, ensuring the stability and accuracy of the signal. The analog-to-digital conversion principle amplifies and adjusts the analog signal, which needs to be converted into a digital signal for processing by the weighing instrument. Convert to a digital signal according to a certain sampling frequency and quantization accuracy. The sampling frequency determines the time resolution of the signal, and the quantization accuracy determines the amplitude resolution of the signal. Appropriate sampling frequency and quantization accuracy can ensure that the digital signal accurately reflects the application characteristics of the weighing scale.

The weighing scale includes a weighing module and a data acquisition and analysis device. The sensors detect the arrival of the vehicle and the corresponding dynamic tire pressure, and use the collected data for analysis to estimate the weight, speed, wheelbase, and model of the vehicle. It can be used to detect various parameters such as the number of axles, wheelbase, axle weight, vehicle speed, wheelbase, and number of tires. It has applications in vehicle classification, dynamic weighing, toll station scales, red light photography, parking area monitoring, traffic information collection, road monitoring, and airport taxiway monitoring. Electronic weighing scales are symmetrical with the output voltage signal and the pressure applied by the vehicle. The signal is converted into voltage by the weighing instrument, and the voltage signal is used to determine the time when the axle is detected. The weight of the corresponding axle is calculated based on the magnitude of the voltage. Each lane has a corresponding weighing module according to the length and width of the vehicle. The ground sensing coil is installed at a distance of 2 meters and is positioned in front of the weighing module table. The speed of the vehicle is obtained by dividing the time it takes for the vehicle to pass through the weighing platform. The wheelbase of the vehicle is calculated by multiplying the axle time of each weighing module by the speed. The wheelbase measured by the weighing platform is the average of the wheelbases calculated by the two Weighing modules. When the vehicle passes through the induction area of the coil, the induction value of the induction coil installed on the road changes, causing a change in the vibration frequency of the internal induction detector of the weighing instrument. This frequency variation is used by the system to determine whether a vehicle has passed through the induction coil. The length of a vehicle is determined by the time it takes for the metal chassis to activate the induction coil, and the induction signal is also used to distinguish between the front and rear vehicles. The weighing scene is collected in real time and dynamically displayed through a computer. The weighbridge and mobile phone can send commands to trigger the computer to access the captured images at any time. When the weighing software saves the collected weight data, it sends commands to the computer to capture the real-time weighing scene and save the images to the local computer hard drive and remote video server image database. This operation is automatically completed by the system and does not allow user intervention; Electronic scales and query phones can also send commands to allow computers to transmit real-time videos, allowing real-time monitoring of the weighing scene on the scales and query phones.

The dynamic Weighing system overcomes the shortcomings and deficiencies of existing vehicle type dynamic weighing scales, such as the low weighing accuracy of ultra long vehicles, weighing scales of three or more vehicles, and poor weighing accuracy caused by cheating methods. It can achieve dynamic continuous weighing of the entire vehicle. The electronic weighing scale uses a vehicle separator to count the vehicles entering the vehicle weighing platform, which is used to separate continuous vehicles; Axle group weighing platform, used for weighing vehicle axles/axle groups, can achieve at least one triple axle group joint weighing; The backend weighing platform is installed behind the axle group weighing platform along the direction of the vehicle, independent of and horizontally aligned with the axle group weighing platform, and forms a complete vehicle weighing platform with the axle group weighing platform to achieve overall vehicle weighing; The upper scale end counting axis device is installed on the weighing platform of the axle group, used to detect the number of vehicle axles entering/exiting the weighing platform of the axle group from the upper scale end; The lower scale end counting axle device is installed at the lower scale end of the rear weighing platform, used to detect the number of axles of vehicles exiting/entering the rear weighing platform from the lower scale end; The intermediate number axis device is installed at the lower end of the axle group weighing platform or the upper end of the rear weighing platform, used to detect the number of vehicle axles entering the rear weighing platform from the axle group weighing platform and entering the axle group weighing platform from the rear weighing platform. The weighing platform includes an axle group weighing platform, which is used to carry the weight of the vehicle axle/axle group. The weighing module is installed below the axle group weighing platform, which is used to support the entire axle group weighing platform and achieve the conversion of weight signals to electrical signals; The upper scale end number axis device, lower scale end number axis device, and middle number axis device have the same structure and are all equipped with sensors. The driving direction of the vehicle is determined by the timing relationship between the sensors of the number axis device and the weighing module adjacent to the number axis device. Weighing sensors are installed at the overlap of the weighing platform and at the end of the platform to support the entire weighing platform and achieve the conversion of weight signals to electrical signals. The weighing scale also includes a digital junction box, which is connected to the weighing sensors of the axle group weighing platform, the weighing sensors of the rear weighing platform, the upper scale end number axis device, the middle number axis device, and the lower end number axis device, for transmitting the collected weighing signals and number axis signals to the weighing data processor; Weighing data processor, connected to the digital junction box and vehicle separator, is used to receive and process weighing signals, number axis signals, and vehicle separation signals, generate axle weight and total weight data of the tested vehicle, and achieve dynamic continuous weighing of the vehicle.

The electronic weighing scale is used to weigh the axle group weight of the weighing vehicle through the axle group weighing platform, combined with the upper scale end number axis device and the intermediate number axis device, to obtain the axle group weight. The whole vehicle weighing platform is used to weigh the whole vehicle weight of the weighing vehicle. The infrared vehicle separator is used to separate the continuously entering vehicles and collect the separation signals. The lower scale end number axis device is used to detect the number of axles that are driven out/poured in from the lower scale end of the rear weighing platform. The weighing module is used to collect the weighing signals of the weighed vehicle obtained from the axle group weighing platform and the rear weighing platform. The digital junction box is connected to the weighing sensor, the upper scale end number axis device, the intermediate number axis device, and the lower scale end number axis device to collect the weighing signals. Transfer to the weighing data processor; The weighing data processor is used to receive and process weighing signals, counting axis signals, and vehicle separation signals, generate the number of axles, axle group type, axle group weight, and total weight data of the tested vehicle, and achieve dynamic continuous weighing of the vehicle. The weighing scale can determine the number of axles and axle group types of vehicles entering/exiting the axle group weighing platform from the upper scale end through the logical relationship between the number axle device on the upper scale end and the weighing sensors on the adjacent axle group weighing platform, that is, single axle double connected axle or triple connected axle. By using the upper scale end counting axis device and the middle counting axis device, the number of axes staying on the axis group weighing platform is determined, and the weight of the axis group is obtained based on the data collected by the weighing module, achieving accurate weighing of the axis group weight. Determine the number of vehicles entering the weighing system, as well as the number of axles and axle group types for each vehicle, through the upper scale end number axis device and vehicle separator. The number of vehicles and axles parked on the vehicle weighing platform are determined through the upper and lower scale end counting devices, and the total weight of the vehicle is weighed through the vehicle weighing platform. When multiple vehicles are continuously weighed, there is synchronous up and down weighing between the rear and front vehicles, which means that the weight of the rear vehicle cannot be obtained by subtracting the weight of the front vehicle parked on the scale from the weight of the entire weighing platform. Therefore, the total weight of the vehicle is calculated using the sum of the axle group weights; When a super long vehicle is weighed, the weight of the lower axle of the super long vehicle can be accurately weighed through the axle group weighing platform. The sum of the weight of the lower axle and the weight of the upper axle is the weight of the super long vehicle. The weighing scale can achieve dynamic continuous weighing of vehicles, improving the weighing accuracy when weighing three or more vehicles and over long vehicles, while also improving traffic efficiency; It can solve the problem of decreased weighing accuracy caused by cheating methods such as jumping scales, point brakes, and S-shaped weighing, and reduce weighing disputes.