Material Unloading Control Using Signal-Based Destination Verification
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Solution Overview
Problem
At large construction sites, there is a recurring issue of unloading the wrong type of material at intended locations, leading to costly and time-consuming clean-up efforts, as existing systems are not specifically adapted to handle multiple similar loading and unloading zones effectively.
Innovation Solution
A method and system that involves receiving signals indicative of the material type and intended destination, comparing this information to determine if the material should be loaded/unloaded, and setting the load-delivering unit to a non-loading/non-unloading operation mode if it's not intended for the destination, thereby disabling the normal dumping function to prevent incorrect unloading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If drivers manually control material unloading based on their knowledge or radio instructions, then operational flexibility is maintained, but the risk of unloading wrong material types increases
Solution Approach 1:
The load-delivering unit autonomously identifies the load-receiving unit and verifies material compatibility through automatic signal exchange, eliminating the need for manual driver decisions or additional worker verification. The system serves itself by automatically determining whether unloading should proceed based on received signals about material type and destination compatibility.
Solution Approach 2:
The system establishes a feedback loop where the control unit receives signals from the load-receiving unit about material type and destination, compares this with the carried material information, and uses this feedback to automatically authorize or prevent unloading. This closed-loop control ensures reliability without adding complex manual procedures.
2Reliability
If additional workers are involved to check material type and direct drivers, then the risk of wrong material unloading is reduced, but operational costs increase
Solution Approach 1:
The patent replaces the mechanical system of human workers physically checking material and providing directions with an electronic signal-based control system. The control unit automatically exchanges information signals with the load-receiving unit and makes the authorization decision, eliminating the need for additional workers while maintaining high reliability.
Solution Approach 2:
The control unit acts as an intermediary between the load-delivering unit and the load-receiving unit, automatically mediating the material unloading authorization process through signal exchange. This intermediary system performs the verification function that previously required human workers, reducing operational costs while maintaining accuracy.
3Reliability
If material unloading is automatically controlled through signal exchange and verification, then the risk of wrong material unloading is minimized, but the system complexity increases
Solution Approach 1:
The control unit performs multiple functions: it controls the loading/unloading operation, receives and processes signals from the load-receiving unit, verifies material compatibility, and automatically authorizes or prevents unloading. By consolidating these functions into a single multi-functional control unit, the system achieves high reliability without proportionally increasing overall system complexity.
Solution Approach 2:
The patent merges the control functions for loading/unloading operations with the verification and authorization functions into an integrated control system. The control unit combines material identification, signal reception, compatibility verification, and unloading authorization into a single unified system, reducing the complexity that would arise from separate independent systems.
4Reliability
If checkpoints are arranged for vehicle passage verification, then material unloading accuracy is improved, but the difficulty of system implementation increases
Solution Approach 1:
Instead of arranging physical checkpoints that vehicles must pass through for verification, the system inverts the approach by equipping the load-receiving unit itself with verification capabilities. The load-receiving unit actively sends signals about material type and destination, and the control unit performs verification during the normal loading/unloading process, eliminating the need for separate checkpoint infrastructure.
Data Source
AI summary
Provided are methods for controlling loading/unloading of a material (from a load-delivering unit to a load-receiving unit, wherein at least one of the load-delivering unit and the load-receiving unit is a working machine vehicle configured to transport a load of material from a first location to a second location, and wherein at least the load-delivering unit is provided with a control unit configured to control operation of the load-delivering unit. Methods include receiving a first signal indicative of the material associated with the load-delivering unit; receiving a second signal indicative of the material intended to be received by the load-receiving unit; and comparing material information related to the first signal with material information related to the second signal.