A method and system for coordinated work of a plurality of industrial vehicles

By employing a master-slave controller architecture and periodic calibration, the problem of large control errors in the collaborative operation of multiple industrial vehicles was solved, achieving higher accuracy and coordination.

CN122166694APending Publication Date: 2026-06-09FANJI TECH (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FANJI TECH (SUZHOU) CO LTD
Filing Date
2026-04-07
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing methods for coordinating multiple industrial vehicles have problems with large control errors and low accuracy, especially errors caused by load changes due to changes in hydraulic oil temperature in the hydraulic system of the lifting mechanism.

Method used

The system adopts a master-slave controller architecture, connecting the controllers of multiple industrial vehicles via a communication bus. The master controller sends a start message and controls the lifting and lowering of the lifting mechanism in a timed manner, periodically calibrates the position of the lifting mechanism to eliminate position errors caused by multiple periodic platform movements, and controls load changes caused by changes in hydraulic oil temperature.

Benefits of technology

It improves the accuracy of collaborative operation of multiple industrial vehicles. By eliminating errors through periodic calibration, it ensures that the lifting mechanism restarts after lifting and lowering for a preset number of cycles, thereby enhancing the precision of collaborative operation.

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Abstract

This invention discloses a method and system for collaborative operation of multiple industrial vehicles. Each industrial vehicle includes a lifting mechanism and a controller. The controller of the target industrial vehicle is the master controller, and the controllers of the other industrial vehicles are slave controllers. The method includes: upon receiving a start command, controlling the lifting mechanism corresponding to the master controller to lift and lower, and sending a start message to all slave controllers; when the height of the lifting mechanism corresponding to the master controller reaches the lower limit, incrementing the corresponding cycle count value by one; if the cycle count value corresponding to the master controller is equal to a preset value, then upon receiving set messages from all slave controllers, controlling the lifting mechanism corresponding to the master controller to lift and lower, sending a start message to the slave controllers, and setting the corresponding cycle count value to zero. The technical solution of this invention improves the control accuracy of collaborative operation of multiple industrial vehicles.
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