The oil drum truck adopts the ingenious combination of moving and weighing with electronic scales, which can be weighed during handling or blanking. The electro-hydraulic weighing platform is composed of hydraulic handling mechanism and weighing elements, and the vehicle is manually moved horizontally. Improve the professional production level of tanker handling and metering, expand the production scale of enterprises, and enhance the overall viability and competitiveness.

The real-time and TCP/IP-based communication on a line is realized by wireless PROFINET communication, and the controller, distributed I/O system and other Ethernet-based devices can be integrated into a common communication framework. It really realizes the synchronization of weighing and handling, and the data information of each weighing can be displayed automatically on the weighing instrument, which truly ensures the dual-purpose function of one machine and completes the weighing and transportation at the same time.

The weighing of stacker truck is a weighing and measuring instrument for weighing the loaded materials during the loading process of loading equipment, which is developed for mobile weighing. The handling and weighing of goods are combined into a whole, and the handling and weighing are completed at one time, thus avoiding the waste caused by extra idle driving, saving time to the maximum extent and improving work efficiency. Can provide the cumulative value of the weighed material and print list.

The weighing sensor uses the compensation network based on radial basis function neural network to complete the nonlinear error compensation of the sensor; In the lower limit region, a digital filter is used to complete the nonlinear error compensation. In the middle area, the weighing sensor does not compensate, and at the same time, the selection of subsection compensation is completed by using the adaptive selection network. The piecewise compensation model of nonlinear error is established to obtain good compensation effect.

Weighing sensor is a kind of mass (weight) measurement method that converts mass (weight) into electricity through the stressed structure. The output electric quantity signal and the input quality (weight) signal have a single value linear correspondence; It has the required accuracy and high sensitivity; It has good frequency response characteristics and less inertia; Little influence on the state of the weighed object; Able to work in poor environmental conditions; Good stability, reliability and long service life.

The feeding system utilizes PLC as the central control area to complete the whole process of weighing and feeding. The PLC central control area sends out a signal to start the corresponding solenoid valve to inject the liquid into the reaction kettle, and at the same time, the weighing module starts to work. When the amount of liquid in the reaction kettle increases to the same value as the weight set by the quantitative setting finger, the central control area receives the action signal from the weighing module, and immediately closes the solenoid valve for adding liquid and stops adding liquid. Automatically start the stirring switch, the control area sends out the instruction to start the corresponding solenoid valve of the mixer and the timer set by the program starts to time, the mixer stirs the solution evenly; when the timer time reaches the set value, the control area sends out the instruction to close the solenoid valve and stops the stirring.

The dosage system enters directly into the corresponding weighing controller through the signals of the weighing module. The weight signals are transmitted to the programmable controller through the serial port or through the Modbus protocol weighing controller. The programmable controller controls the final control valve of the dosage in each bin according to the dosage weight, in order to increase the required dosage weight. The communication with the configuration is realized by using 485 bus. S7-200 series has the functions of recipe setting, dosage control, dosing, report printing, remote alarm and other functions to realize remote monitoring.

The human-machine interface of the feeding system is developed based on the operating system, which can meet the requirements of monitoring and controlling the production process as well as archiving and processing the production data. The user interface drawn by WinCC is simple and easy to operate with a good human-machine interface, which can dynamically display the operation status of various equipment on the site and the various parameters of the dosage operation. The operator can also flexibly control the starting and stopping of the field equipment and change the operating parameters of the dosage according to the needs.

The overall composition of the dosage system is that the host and the slaves (including the virtual host) are connected via serial bus, and the virtual host and the slaves are also connected via serial bus, constituting the master-slave microcomputer dosage of the dual-bus structure, the host realizes the control of the dosage through the serial president, and the virtual host realizes the control of the dosage through the serial bus after obtaining the right to control the system, and the host mainly completes the control of the process, real-time display and alarm, and provides data storage. The host mainly accomplishes the functions of process control, real-time working condition display and alarm, data storage, report printing, recipe optimization and management consulting.