Mobile Field Data Acquisition by Plant Area Wireless Grouping
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Solution Overview
Problem
Existing technologies face challenges in efficiently acquiring data from field devices in industrial plants, particularly due to the large number of devices, their difficult locations, and the need for manual, close-proximity operation.
Innovation Solution
The implementation of a wireless communication system that allows mobile devices to connect with field devices, enabling data acquisition without the need for physical proximity, using existing two-wired field devices and leveraging low-power wireless technologies like BLE.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If data acquisition is performed using dedicated tools requiring physical approach to field devices, then data can be obtained from field devices, but the time and labor required increase significantly due to the large number of devices and difficult locations
Solution Approach 1:
The patent replaces the mechanical approach of physically approaching field devices with dedicated tools by implementing wireless communication technology. The system uses wireless communication units in both the information processing device and field devices to transmit and receive data without physical contact, thereby eliminating the time-consuming manual approach while maintaining data acquisition capability.
2Loss of information
If operators manually approach each field device for data acquisition, then data can be collected, but the labor intensity and operational complexity increase
Solution Approach 1:
The patent merges the data collection function across multiple field devices into a single information processing device. The system uses a wireless communication unit to simultaneously or sequentially communicate with multiple field devices, consolidating what would require multiple manual operations into one automated process, thereby maintaining complete data collection while dramatically simplifying operation.
Solution Approach 2:
The field devices are equipped with wireless communication units that enable them to autonomously transmit their data without requiring manual intervention. The information processing device automatically receives and processes data from multiple field devices, making the data collection process self-service rather than requiring operator involvement in each individual device access.
3Measurement precision
If traditional data acquisition methods are used requiring physical access, then data can be obtained from field devices, but safety risks increase for operators working in difficult-to-reach locations
Solution Approach 1:
The patent eliminates the need for operators to physically approach field devices by substituting the mechanical access method with wireless communication. The information processing device receives data from field devices through wireless transmission, completely removing operators from hazardous environments while maintaining accurate data acquisition from all field devices regardless of location.
Data Source
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AI summary
An information processing system (1) includes a number of field devices (202) provided in a plant and a mobile device (201) that acquires data from the field devices (202). The mobile device (201) includes a data management unit (213) that manages the field devices (202) that are grouped for each plant area and a processing unit (212) that acquires data using wireless communication from, out of the field devices (202) managed by the data management unit (213), the field devices (202) provided in the plant area selected by user operation.