Mobile Operating Unit Guidance for Faulty Field Device Localization
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Solution Overview
Problem
In industrial automation systems, quickly identifying and localizing faulty field devices across distributed installations is challenging, as service technicians must manually search for issues without prior knowledge of device status, leading to inefficiencies in maintenance and error correction.
Innovation Solution
A method utilizing a database connected to a radio unit to create a list of faulty field devices with location information, transmitting this list to a mobile operating unit, and guiding the technician to the device using the control unit, prioritizing by criticality and distance, and automatically loading necessary information for error correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If service technicians manually search for faulty field devices without prior knowledge of device status, then they can cover all installation locations, but the time and effort required for maintenance increases significantly
Solution Approach 1:
The system performs preliminary actions by continuously monitoring field device statuses and pre-compiling lists of faulty devices before service technicians arrive. The database automatically identifies devices with service or diagnostic statuses and prepares targeted lists with location information, eliminating the need for technicians to manually search through all installation locations.
Solution Approach 2:
The system implements feedback mechanisms where field devices continuously report their operational status to the database. This real-time feedback enables the system to automatically update lists of faulty devices and notify relevant technicians, creating a closed-loop information flow that reduces response time and improves maintenance efficiency.
2Productivity
If service technicians are provided with comprehensive lists of all field devices and their locations, then they can efficiently locate faulty devices, but the complexity of the system increases
Solution Approach 1:
The system extracts only the necessary information from the complete field device database - specifically, lists containing only faulty devices with their location information. This selective extraction provides technicians with focused, actionable data without overwhelming them with comprehensive system details, balancing productivity gains with acceptable system complexity.
Solution Approach 2:
The system segments the large database of all field devices into manageable subsets based on operational status. By creating separate lists for devices with service or diagnostic statuses, the system divides the complex information space into targeted, easily consumable groups that technicians can efficiently process.
3Loss of time
If the system automatically transmits lists of faulty devices to operating units via radio, then maintenance response time is reduced, but the loss of information increases due to potential communication errors
Solution Approach 1:
The system creates accurate copies of the faulty device list data and transmits them via radio communication to operating units. The database generates standardized list formats that are replicated and sent to multiple technicians simultaneously, ensuring consistent information distribution while minimizing transmission errors through standardized data structures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates rapid and efficient identification and correction of field device errors by providing direct location information and necessary resources to service personnel, reducing the time and effort required for maintenance and troubleshooting.
Implementation Method 1
a database (DB), with the current status of each of the field devices in the database, as well as the location information is stored, the database comprising a radio unit; searching for operating units that can be contacted by radio using the radio unit of the database; If at least one operating unit was found, transmission of at least part of the list to the operating unit using the radio unit
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a method and an operating unit (BE1, BE2) for troubleshooting errors in a system of automation technology, wherein the system has a plurality of field devices (FG1, FG2, FG3) which are attached to distributed installation locations, wherein the method comprises the following steps: accessing a database (DB) by means of an operating unit (BE1, BE2), wherein for each of the field devices (FG1, FG2, FG3) the current status thereof and location information (OI1, OI2, OI3) corresponding to the respective installation location of the field device (FG1, FG2, FG3) is stored in the database (DB); providing a list of those field devices (FG1, FG2, FG3) and the location information (OI1, OI2, OI3) thereof for which a service status or a diagnosis status has been recorded due to at least one error; selecting at least one of the field devices (FG1, FG2, FG3) in the list by means of the operating unit (BE1, BE2); gathering the current location position of an operator by means of the operating unit (BE1, BE2); locating the selected field device (FG1, FG2, FG3) including the current location position of the operating unit (BE1, BE2) and the location information (OI1, OI2, OI3) of the selected field device (FG1, FG2, FG3) using the operating unit (BE1, BE2); finding the located field device (FG1, FG2, FG3) via the operator with the aid of the operating unit (BE1, BE2); and connecting the operating unit (BE1, BE2) to the sought field device (FG1, FG2, FG3) and operating the field device (FG1, FG2, FG3) by means of the operating unit (BE1, BE2) in order to troubleshoot the error.