Mobile Base Station Data Collection Route Optimization
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Solution Overview
Problem
Current IoT data collection systems face challenges in efficiently collecting data from a large number of sensor terminals in a wide area due to high costs and limited data rate, leading to potential data omission and increased battery consumption when using a mobile base station.
Innovation Solution
A data collection system that employs a mobile base station to collect data from distributed sensor terminals by using flag information to determine which terminals have data to collect, allowing the base station to calculate an optimal data collection route and prioritize communication with flagged sensors, thereby reducing overall collection time and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the mobile base station moves at a certain speed to collect data from all sensor terminals, then the data collection coverage is improved, but data omission is likely to occur and collection time increases
Solution Approach 1:
The system performs preliminary actions by having sensor terminals transmit flag information indicating data availability before the mobile base station arrives. This allows the base station to pre-plan its collection route based on which terminals actually have data, avoiding unnecessary visits to terminals without data and reducing overall collection time while maintaining comprehensive coverage of areas with data sources
Solution Approach 2:
Instead of collecting data from all sensor terminals regardless of data availability, the system applies partial action by selectively collecting data only from terminals that have data to transmit (indicated by flag information). This reduces the number of collection points visited, decreasing total collection time while still achieving complete data coverage from all necessary sources
2Reliability
If the speed of the mobile base station is reduced to secure sufficient data collection time, then data collection completeness is improved, but battery consumption increases
Solution Approach 1:
Sensor terminals transmit flag information in advance to indicate whether they have data available for collection. The mobile base station uses this preliminary information to optimize its route, visiting only terminals that actually have data. This reduces the total number of stops and collection attempts, thereby reducing energy consumption while ensuring complete data collection from all terminals that have data
Solution Approach 2:
The system extracts and utilizes flag information from sensor terminals that indicates data availability status. By separating the information about data availability from the actual data collection process, the mobile base station can make informed routing decisions, avoiding unnecessary visits to terminals without data, thus reducing energy consumption while maintaining collection completeness
3Ease of operation
If data is collected from one sensor terminal at a time, then communication simplicity is improved, but total data collection time increases dramatically
Solution Approach 1:
The system implements preliminary action by having all sensor terminals transmit their flag information simultaneously or in parallel before the mobile base station begins its collection route. This preliminary parallel information gathering allows the base station to plan an optimized route that minimizes total collection time, while the actual data collection during the route maintains simple one-to-one communication
Solution Approach 2:
The system adds a new dimension to the data collection process by introducing flag information transmission as a separate preliminary phase. This creates a two-stage process: first, parallel flag information exchange; second, sequential data collection along an optimized route. This dimensional separation allows the system to maintain communication simplicity during data collection while achieving time efficiency through pre-planning
Data Source
AI summary
An object of this disclosure is to reduce a total time required for data collection and improve data collection efficiency.According to this disclosure, there is provided a data collecting system in which a mobile base station apparatus collects data from a plurality of terminal devices arranged in a distributed manner. The mobile base station apparatus collects flag information from each terminal device of the plurality of terminal devices, the flag information indicating that the corresponding terminal device has data to be collected, by using a control signal before establishing communication with the terminal device, calculates a data collection route for collecting data from the terminal device by using the flag information; and collects data from the terminal device by moving along the calculated data collection route.