Wireless Communication Timing Control for Battery-Limited IoT Terminals
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Solution Overview
Problem
In wireless LANs for industrial use, there is a need to manage the operating and transmission times of battery-powered IoT terminals to comply with transmission time constraints while optimizing battery life.
Innovation Solution
A wireless communication management apparatus with a remaining capacity prediction unit and a time setting unit that adjusts the operating and transmission times based on predicted battery capacity to ensure compliance with transmission constraints and maximize battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the transmission time of wireless communication devices is increased to improve communication efficiency, then the communication productivity is improved, but the battery capacity is depleted faster
Solution Approach 1:
The management apparatus performs preliminary prediction of battery remaining capacity before setting transmission parameters. By predicting the battery state in advance and pre-configuring appropriate transmission time and operating time settings, the system prevents battery depletion while maintaining communication efficiency, rather than reacting after battery issues occur.
Solution Approach 2:
The system dynamically adjusts transmission time and operating time parameters based on predicted battery capacity and environmental conditions. The management apparatus continuously monitors battery state and modifies communication parameters in real-time, transitioning from static fixed parameters to dynamic adaptive parameters that optimize both communication efficiency and battery conservation.
2Reliability
If the operating time of wireless communication devices is extended to improve data transmission completeness, then the communication reliability is improved, but the battery capacity is depleted faster
Solution Approach 1:
The management apparatus predicts battery remaining capacity in advance and pre-configures appropriate operating time settings before data transmission begins. This preliminary configuration ensures that the device operates long enough to complete necessary transmissions while preventing excessive operation that would deplete the battery, thereby maintaining reliability without sacrificing battery life.
Solution Approach 2:
The system changes operating parameters (transmission time, operating time) based on predicted battery capacity thresholds. When battery capacity falls below certain thresholds, the management apparatus adjusts these parameters to maintain data transmission completeness while conserving energy, effectively adapting the system's operational characteristics to battery conditions.
3Reliability
If the transmission time is increased to comply with legal constraints, then the regulatory compliance is improved, but the battery capacity is depleted faster
Solution Approach 1:
The management apparatus incorporates legal transmission time constraints into its preliminary battery capacity prediction and parameter setting process. By pre-configuring transmission time parameters that satisfy both regulatory requirements and battery conservation needs, the system ensures compliance without excessive energy consumption, rather than adjusting parameters after the fact.
Solution Approach 2:
The system adjusts transmission time parameters within the bounds of legal constraints based on predicted battery capacity. The management apparatus modifies these parameters dynamically to maintain regulatory compliance while optimizing for battery conservation, effectively navigating the intersection of legal requirements and energy management.
4Duration of action of stationary object
If the transmission time is reduced to conserve battery capacity, then the battery life is extended, but the communication productivity decreases
Solution Approach 1:
The system dynamically determines transmission time parameters based on real-time battery capacity predictions and environmental conditions. Rather than using fixed reduced transmission times, the management apparatus adjusts parameters adaptively - allowing longer transmission times when battery capacity is sufficient and shorter times when battery capacity is low - thereby maintaining communication productivity while extending battery life through intelligent dynamic control.
Solution Approach 2:
The management apparatus changes transmission time parameters based on predicted battery capacity thresholds and environmental factors. By systematically adjusting these parameters according to battery state, the system optimizes the balance between battery life extension and communication productivity, preventing both excessive battery consumption and unnecessary productivity loss.
Data Source
AI summary
A wireless communication management apparatus (100) includes a remaining capacity prediction unit (122) and a time setting unit (123). The remaining capacity prediction unit (122) predicts a remaining capacity (BLafter) of a battery (305) at a time point after a predetermined period has passed in a wireless communication device (300) on which the battery (305) is mounted. The time setting unit (123) sets a condition that the remaining capacity (BLafter) of the battery (305) predicted by the remaining capacity prediction unit (122) is greater than an allowable remaining capacity (BLminreq) and each of an operating time (Ton) and a transmittable time (Ttx) of the wireless communication device (300) falls within the reference range, and sets the operating time (Ton) and the transmittable time (Ttx) of the wireless communication device (300) in a state where the condition is satisfied.