Work Machine Data Transmission Control Under Low Communication Speed
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Solution Overview
Problem
Existing technologies do not account for changes in communication speed due to weather-related or work machine state changes, leading to potential failures in transmitting work machine information to a managing apparatus.
Innovation Solution
A work machine controller measures communication speed and imposes functional restrictions on data transmission, reinforcing these restrictions when communication speed is low or the machine is in an operation state, using methods like data reduction, buffering, and transmission suspension.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the dividing section continuously transmits divided work machine information to the managing apparatus, then the information transmission process is maintained, but the transmission reliability deteriorates when communication speed is low due to weather or machine state changes
Solution Approach 1:
The patent applies dynamics by making the transmission process adaptive rather than static. The controller dynamically adjusts the transmission behavior based on real-time communication speed measurements and machine operation states. When communication speed is sufficient, normal transmission continues; when communication speed drops below thresholds, the controller suspends transmission temporarily. This dynamic adjustment resolves the contradiction by maintaining reliability during poor communication conditions while preserving transmission efficiency during good conditions.
2Reliability
If the controller reinforces functional restriction on transmission process when communication speed is low, then transmission reliability improves, but information transmission completeness deteriorates
Solution Approach 1:
The patent applies periodic action by implementing intermittent transmission suspension rather than continuous transmission. The controller periodically monitors communication speed and operation state, and temporarily suspends transmission during periods when conditions are poor. This periodic on-off pattern allows the system to maintain reliability by avoiding transmission during poor conditions while minimizing information loss by resuming transmission when conditions improve.
Solution Approach 2:
The patent applies beforehand cushioning by preparing a buffer storage mechanism. When transmission is suspended due to poor communication conditions, the system has already buffered previously collected information, allowing it to resume transmission smoothly when conditions improve without losing critical data. This cushioning approach prevents information loss while maintaining reliability during suspension periods.
3Reliability
If the controller places functional restriction on transmission process during operation state, then critical machine control functions are protected, but data transmission frequency decreases
Solution Approach 1:
The patent applies local quality by differentiating transmission restrictions based on machine operation state. When the machine is in operation state (performing work), the controller imposes stronger functional restrictions on transmission to protect critical control functions and maintain system stability. When the machine is not in operation state, transmission restrictions are relaxed or removed, allowing normal data transmission. This localized differentiation resolves the contradiction by protecting control stability during critical operations while maintaining data transmission frequency during non-critical periods.
Data Source
AI summary
A work machine includes a body, a work implement attached to the body, and a controller that executes a transmission process of transmitting data to an external apparatus installed outside the body. The controller measures a speed of communication with the external apparatus, places a functional restriction on the transmission process when the speed of communication is lower than a predetermined required speed, reinforces the functional restriction on the transmission process as the speed of communication lowers, and reinforces the functional restriction on the transmission process when a state of the work machine is an operation state, as compared to a case where the state of the work machine is not the operation state.