Hydraulic Excavator Output Control via Centralized Server
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Solution Overview
Problem
Existing construction machines face challenges in adjusting output characteristics to suit different operators and working conditions without increasing the size or number of mobile media or memory devices, leading to potential reductions in operator efficiency and responsiveness.
Innovation Solution
A system comprising a management server that stores operator and vehicle body information, allowing for the extraction and transmission of desired output characteristic information to a control device, which adjusts the actuator's output characteristics based on operator preferences, thereby reducing the need for large memory devices on the machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If output characteristic information is stored in mobile medium or IC card, then operator-specific operability can be changed, but the mobile medium and memory device become large-sized or increased in number
Solution Approach 1:
The patent extracts the storage function from the mobile medium/IC card by using the management server's database instead. The server stores operator information, vehicle body information, and output characteristic information separately, allowing the mobile medium to only carry identification data rather than large volumes of operational parameters.
Solution Approach 2:
The management server serves multiple functions: it stores data for multiple operators, manages multiple vehicle bodies, and provides output characteristic information for various working conditions. This centralized system replaces the need for separate storage devices in each machine, reducing overall memory requirements.
2Adaptability or versatility
If data volume stored in mobile medium increases to accommodate various working contents and operators, then operability can be adjusted for different conditions, but the mobile medium becomes large-sized
Solution Approach 1:
The patent transitions from local storage (single machine) to cloud-based storage (network dimension). By moving the database to a management server accessible via network, the system gains virtually unlimited storage capacity without increasing the physical size of mobile media in the construction machines.
3Adaptability or versatility
If multiple memory devices are used to store operator-specific settings, then each operator's preferences can be preserved, but the number of memory devices increases
Solution Approach 1:
The patent merges multiple individual memory devices into a single centralized database on the management server. All operator preferences, vehicle body settings, and output characteristics are consolidated in one location, eliminating the need for separate storage devices in each machine while preserving all operator-specific configurations.
Data Source
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AI summary
A management server (32) is provided in a position away from a hydraulic excavator (1). An operator ID and a vehicle body ID and output characteristic information are stored in a memory device (32A) in the management server (32) in such a manner as to be associated with operability desired by each of operators. The management server (32) extracts the output characteristic information in conformity with the operability desired by an operator from the operator ID and the vehicle body ID, and outputs the extracted output characteristic information to the hydraulic excavator (1). A control device (17) in the hydraulic excavator (1) changes the output characteristics of hydraulic actuators (4D), (4E), (4F), (2B), (3B) based upon the output characteristic information stored in a memory (19).