Optical Battery Control Wake-Up Circuit for Low-Power Communication
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Solution Overview
Problem
Existing battery systems face challenges with static control of power output and charging, which are insufficient to meet dynamic power demands, and wire-based control systems suffer from issues like electromagnetic interference, power losses, and high costs, while light-based communication struggles with reliable wake-up processes and increased power consumption.
Innovation Solution
A control system utilizing light-based communication with a master control unit and slave control units, featuring a light source, photo-sensitive elements, and a wake-up unit that allows for a low-energy wake-up process, decoupling wake-up functions from normal operation modes to reduce power consumption and enhance reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wire-based control systems are used for battery system control, then reliable communication can be achieved, but electromagnetic interference, power losses, and high costs occur
Solution Approach 1:
The patent replaces the wire-based mechanical/electrical communication system with an optical communication system using light signals. The master control unit and slave control units communicate through optical signals instead of electrical wires, eliminating electromagnetic interference while maintaining communication reliability. This substitution of the transmission medium resolves the contradiction between reliable communication and electromagnetic interference.
2Object-generated harmful factors
If light-based communication is used for battery system control, then electromagnetic interference is eliminated, but wake-up processes become unreliable and power consumption increases
Solution Approach 1:
The patent segments the optical communication system into distinct functional components: a light source in the master control unit, photo-sensitive elements in the slave control units, and a wake-up unit with switching elements. This segmentation allows independent optimization of each component, enabling reliable wake-up processes through dedicated circuitry while maintaining the benefits of optical communication.
Solution Approach 2:
The patent introduces a wake-up unit as an intermediary component between the photo-sensitive element and the main control circuitry. This wake-up unit includes switching elements that control the connection between the photo-sensitive element and the control unit, enabling reliable wake-up processes by mediating the transition from sleep to active state in the optical communication system.
3Reliability
If slave control units remain in normal operation mode, then wake-up processes are reliable, but power consumption increases
Solution Approach 1:
The patent implements periodic action by allowing slave control units to alternate between sleep mode and active mode. During normal operation, slave control units can enter sleep mode to conserve energy, and the wake-up unit enables reliable transitions to active mode when needed. This periodic switching between operational states resolves the contradiction between reliability and power consumption.
Solution Approach 2:
The patent introduces dynamic operation modes for slave control units, allowing them to switch between sleep mode and active mode based on system requirements. The wake-up unit with its switching elements enables dynamic transitions between these states, optimizing the balance between wake-up reliability and power consumption by adapting the operational state to current system needs.
4Reliability
If wire-based control systems are used, then established communication can be achieved, but power losses and construction costs increase
Solution Approach 1:
The patent replaces the wire-based electrical communication system with an optical communication system. This substitution eliminates the power losses associated with electrical wire transmission while maintaining communication stability through reliable optical signal transmission between master and slave control units.
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
The solution enables a reliable wake-up process in battery systems with reduced energy consumption, improving the overall efficiency and lifespan of the battery system by minimizing power losses and construction costs associated with wire-based systems.
Implementation Method 1
a photo-sensitive element configured to receive light signals emitted by the light source
Data Source
AI summary
A control system for a battery system is provided. The control system includes a master controller and a slave controller using light-based communication. The master controller includes a light source and a transmission controller controlling the light source, and the slave controller includes a photo-sensitive element, a wake-up circuit, a power supply node, and a receiver circuit. The photo-sensitive element receives the light signals emitted by the light source and, in response to receiving a wake-up light signal, outputs a wake-up signal to the wake-up circuit, and in response to receiving the wake-up signal from the photo-sensitive element, the wake-up circuit connects the receiver circuit to the power supply node or to the photo-sensitive element. When the receiver circuit is connected to the power supply node and the photo-sensitive element, the receiver circuit receives an operation voltage from the power supply node and receives reception signals from the photo-sensitive element.