Backhoe Ring Buffer Switching for Accurate Remote Diagnosis
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Solution Overview
Problem
Existing systems for diagnosing industrial machinery failures, such as those described in JP 2011-74639 A, face challenges in accurately and efficiently transmitting operation data for remote diagnosis, particularly in capturing continuous temporal changes in machinery status, which limits effective remote diagnosis of industrial machine parts.
Innovation Solution
An operation data support system for industrial machinery that includes a first memory device with a ring buffer, a second memory device, and a communication device, where the control device manages data storage and transmission, switching between memory devices based on transmission commands and thresholds to ensure efficient data transfer and storage, allowing for accurate remote diagnosis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If operation information is converted into an image of a QR code and transmitted only at the timing when diagnosis is requested, then transmission simplicity is improved, but the amount of information for diagnosis is reduced and diagnostic accuracy deteriorates
Solution Approach 1:
The system performs preliminary actions by continuously storing operation data in the ring buffer memory device before diagnosis is requested. This ensures that when a transmission command is received, sufficient historical operation data is already available for accurate remote diagnosis, eliminating the need to wait until the moment of diagnosis request.
Solution Approach 2:
The ring buffer memory device acts as an intermediary between the operation data generation source and the transmission device. It temporarily stores operation data and makes it available for transmission when needed, decoupling the data generation process from the transmission process and enabling accurate diagnosis without continuous transmission.
2Measurement precision
If continuous operation data is transmitted to maintain diagnostic accuracy, then diagnostic accuracy is improved, but communication resources and system complexity increase
Solution Approach 1:
Instead of continuous transmission, the system uses periodic action by transmitting operation data only when a transmission command is received from the external terminal. The ring buffer continuously stores data in the background, and transmission occurs periodically or on-demand, reducing communication resource usage while maintaining diagnostic accuracy.
Solution Approach 2:
The ring buffer memory device automatically manages operation data storage without requiring complex control logic. It continuously stores incoming operation data in a first-in-first-out manner, and the control device simply needs to issue transmission commands without managing the complexity of data buffering, achieving self-service data management.
Data Source
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AI summary
An operation data support system (S) for industrial machinery (1) includes a first memory (31B), a second memory (32B), a communication device (30C), and a control device (30A). The first memory (31B) stores, with a ring buffer, operation data regarding a backhoe (1). The second memory (32B) is different from the first memory (31B) and stores operation data. The communication device (30C) transmits, outward from the backhoe, the operation data stored in either the first memory (31B) or the second memory (32B). The control device (30A) controls the first memory (31B), the second memory (32B), and the communication device (30C). When acquiring a transmission command for operation data, the control device (30A) stops storage of operation data with the ring buffer in the first memory (31B) and additionally causes the communication device (30C) to transmit first operation data stored in the first memory (31B).