Road Stud Hybrid Power and Centralized Control
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Solution Overview
Problem
Existing road stud systems that utilize solar cells for light emission have limited power generation, making them inefficient for effective operation.
Innovation Solution
A road stud system that includes a terminal storage unit for unique fixed position information, a light emission unit, a moving body detection unit, a radio communication unit, and a terminal control unit, allowing for stable power supply through a storage battery and transformer, and centralized control of multiple road studs via a group and overall control apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If solar cells are used to power the light emission unit, then the road stud can operate autonomously using sunlight, but the amount of power obtained is limited and operation becomes inefficient
Solution Approach 1:
The patent combines multiple power sources (solar cells and storage battery) into a hybrid power supply system. The storage battery is connected in parallel with the solar cells to supplement power when solar generation is insufficient, thereby resolving the contradiction between autonomous operation and operational efficiency.
Solution Approach 2:
The storage battery stores energy in advance during periods when solar power is abundant (daytime), so that sufficient power is available during periods when solar power is insufficient (nighttime or cloudy conditions). This preliminary energy accumulation ensures continuous efficient operation.
2Adaptability or versatility
If fixed position information is stored in each road stud for identification and control, then centralized control of multiple road studs becomes possible, but device complexity increases
Solution Approach 1:
The patent introduces a control server as an intermediary that manages multiple road studs. Each road stud stores only simple fixed position information and communicates with the control server, which handles the complex control logic. This distributes complexity from individual road studs to the centralized server, enabling versatile control without significantly increasing road stud complexity.
Solution Approach 2:
The control system is segmented into distributed road studs (with simple identification functions) and a centralized control server (with complex control logic). This segmentation allows each component to have a focused, simpler function while the system as a whole achieves sophisticated control capabilities.
3Reliability
If a storage battery and transformer are added to provide stable power supply, then operation stability improves, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The storage battery and transformer are designed as standardized modules that can be integrated into existing road stud structures. These components serve multiple functions: the battery provides both power storage and voltage regulation, while the transformer handles both step-up and step-down conversion. This multi-functionality reduces the need for additional specialized components, easing manufacturing.
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
Enables efficient and stable operation of road studs with precise light emission control based on detected moving bodies, using fixed position information for identification and instruction receipt, effectively managing power supply and collective control across multiple units.
Implementation Method 1
The road stud further includes a transformer associated with a power line of an alternating current (AC) power embedded near the road stud, and the aforementioned storage battery may receive power supply based on a current that is generated in the transformer
Implementation Method 2
a road stud that includes solar cells and a light emission unit and causes the light emission unit to emit a light by using sunlight
Data Source
AI summary
A road stud includes a terminal storage unit, a light emission unit, a moving body detection unit, a radio communication unit, and a terminal control unit. The terminal storage unit stores preset unique fixed position information. The light emission unit emits a preset light to the surroundings. The moving body detection unit generates a detection signal indicating that a nearby moving body has been detected. The radio communication unit receives, based on fixed position information, an instruction signal for an operation of the light emission unit from a predetermined control system and transmits a detection signal to the control system. The terminal control unit controls a light emission unit based on the instruction signal.