Portable Work Support Terminals With Behavior-Based Data Transmission
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Solution Overview
Problem
The continuous transmission and reception of moving image and audio data between on-site workers and remote supporters in manufacturing sites lead to increased communication volume and battery capacity issues in portable terminals, as not all work requires constant monitoring and instruction.
Innovation Solution
A work support system that includes a portable terminal and a support server, which determines the work behavior of the on-site worker based on condition information and adjusts the types of data transmitted to reduce communication volume by changing data transmission when the worker's behavior deviates from specified ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If moving image data and audio data are constantly transmitted and received between the on-site worker and the remote supporter, then the worker can receive real-time support and instructions, but the communication volume increases and battery capacity becomes insufficient
Solution Approach 1:
The system dynamically adjusts the transmission frequency and type of data based on the worker's activity state. The control unit determines whether the worker is engaged in work based on environmental information (position, image, audio, acceleration) and condition information, then adapts the communication behavior accordingly - transmitting data frequently when work is detected and reducing transmission when work is not detected, thus resolving the contradiction between real-time support capability and battery consumption
Solution Approach 2:
The system changes communication parameters (transmission frequency, data type) based on detected work behavior. When the control unit determines the worker is not engaged in work, it reduces transmission frequency or stops transmission entirely. When work is detected, it increases transmission frequency or changes to real-time transmission mode, thereby optimizing battery usage while maintaining support capability when needed
2Reliability
If moving image data and audio data are constantly transmitted, then real-time monitoring is maintained, but the communication cost increases
Solution Approach 1:
The system dynamically adjusts data transmission based on work engagement detection. The control unit continuously monitors environmental information and compares it with condition information to determine work behavior. When work is not detected, the system reduces or stops transmission, thereby reducing communication volume while maintaining monitoring continuity when work is actually performed
Solution Approach 2:
The system implements periodic transmission rather than continuous transmission. The control unit periodically checks environmental information and condition information to determine whether transmission should occur. This periodic action maintains monitoring continuity when work is detected while significantly reducing overall communication volume compared to constant transmission
3Use of energy by moving object
If data transmission is reduced to save communication volume, then battery life is extended, but real-time support responsiveness may be compromised
Solution Approach 1:
The system dynamically switches between low-activity mode (reduced transmission) and high-activity mode (real-time transmission) based on work detection. When the control unit detects work engagement through environmental information matching condition information, it immediately switches to real-time transmission mode, ensuring responsive support when needed while maintaining battery life during non-work periods
Solution Approach 2:
The system uses feedback from environmental information (position, image, audio, acceleration) and condition information to continuously monitor work behavior. This feedback loop enables the control unit to detect work engagement and adjust transmission accordingly, ensuring that response time is minimized when work is detected while allowing communication volume reduction when work is not detected, thus resolving the contradiction between battery life and response time
Data Source
AI summary
In a work support system for supporting a work of a worker carrying a portable terminal, a communication volume of the portable terminal is reduced. The work support system includes: a portable terminal; and a support server configured to communicate with the portable terminal and support a work of a worker carrying the portable terminal, wherein a control unit included in the portable terminal determines a work behavior of the worker based on condition information specified for each work content performed by the worker, and changes, in a case of having determined that the work behavior of the worker deviates from a range specified based on the condition information, types of data transmitted from the portable terminal to the support server.