Work Machine Data Collection Device Storage Optimization

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Solution Overview

Problem

Operation data collection devices for work machines face challenges in storing data when access frequency diminishes, leading to potential data loss and failure detection issues due to limited storage capacity and communication infrastructure limitations in remote mining environments.

Innovation Solution

An operation data collection device with a communication processing section, access history management section, and recorded data change processing section that adjusts data recording based on download status and storage capacity, ensuring important data is preserved and storage capacity is optimized.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the storage capacity of the operation data collection device is enhanced, then the amount of stored operation data increases, but the device size and cost increase

Engineering Contradiction:

Improveamount of stored operation dataVSAvoiddevice size

Core Design Contradiction:

Quantity of substanceVSVolume of stationary object

Solution Approach 1:

The patent segments operation data into different types (normal operation data and abnormal operation data) and applies different storage strategies to each segment. Normal operation data is stored at a reduced resolution or selectively, while abnormal operation data is stored at full resolution, thereby reducing overall storage requirements without losing critical information.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent extracts and identifies abnormal operation data from the overall data stream using detection mechanisms. By separating abnormal data from normal data, the system can apply specialized storage handling only to the critical abnormal portions, reducing the storage burden on the overall system while preserving important failure indicator data.

Inventive Principle:

Principle #2Taking out (Extraction)

2Quantity of substance

If the storage capacity of the operation data collection device is enhanced, then the amount of stored operation data increases, but the device cost increases

Engineering Contradiction:

Improveamount of stored operation dataVSAvoiddevice cost

Core Design Contradiction:

Quantity of substanceVSEase of manufacture

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Inventive Principle:

Principle #2Taking out (Extraction)

3Productivity

If the operation data collection frequency is increased, then the amount of collected operation data increases, but the storage capacity is exceeded more quickly

Engineering Contradiction:

Improveoperation data collection frequencyVSAvoidamount of collected operation data

Core Design Contradiction:

ProductivityVSQuantity of substance

Solution Approach 1:

The patent implements preliminary detection of abnormal conditions through monitoring mechanisms that identify when abnormal operation data occurs. This preliminary action allows the system to prepare for and prioritize storage of critical data before storage capacity is fully consumed, ensuring that important failure indicator data is preserved even during high-frequency collection periods.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent applies different storage qualities to different types of operation data. Abnormal operation data is stored at full resolution and priority, while normal operation data is stored at reduced resolution or with lower priority, thereby optimizing the use of limited storage capacity across varying data importance levels.

Inventive Principle:

Principle #3Local quality

4Reliability

If remote monitoring is implemented, then constant monitoring of the work machine is achieved, but communication infrastructure is required which is not available in many mines

Engineering Contradiction:

Improveconstant monitoring capabilityVSAvoidcommunication infrastructure requirement

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent implements a self-service monitoring system that autonomously detects, records, and prioritizes operation data without requiring external communication infrastructure. The system independently identifies abnormal conditions and preserves critical data locally, enabling reliable monitoring in remote mining environments where communication infrastructure is unavailable.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS10165053B2Operation data collection device for work machines

Publication Date: 2018.12.25 HITACHI CONSTRUCTION MACHINERY CO LTD

AI summary

The operation data collection device for work machines includes a plurality of sensors attached to a work machine to receive measurement data as operation data and record the operation data in an operation data storage section. The operation data collection device further includes: a communication processing section that transmits the operation data stored in the operation data storage section to an external server in response to a download request from the external server; an access history management section that manages a download status of the operation data recorded in the operation data storage section, through the download request from the external server and the transmission of the operation data to the external server; and a recorded data change processing section that changes a condition for recording the operation data in the operation data storage section in accordance with the download status of the operation data.