Remote Optical Path Switching Node With Dual-Capacitor Backup Power
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Solution Overview
Problem
Existing remote optical path switching nodes face instability due to potential failure in charging capacitors from optical power supply fibers, leading to operational challenges.
Innovation Solution
A remote optical path switching node equipped with an optical switch unit, photoelectric conversion element, first and second capacitors, and a remote control unit, utilizing both capacitors to ensure stable operation by switching power sources when one fails, and incorporating renewable energy generation units on the manhole cover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a remote optical path switching node is installed in a manhole to enable remote switching operations, then working time can be shortened and operational efficiency improved, but power supply becomes difficult to secure from external sources
Solution Approach 1:
The remote optical path switching node generates its own power through photoelectric conversion of feeding light transmitted from the accommodation station, storing energy in capacitors to operate independently without external power supply infrastructure
Solution Approach 2:
The feeding light transmitted from the accommodation station serves dual purposes: transmitting optical signals for communication and providing energy through photoelectric conversion to power the remote switching node's operations
2Device complexity
If power is supplied solely through optical power supply fibers to the remote switching node, then system simplicity is maintained, but reliability decreases due to potential charging failures
Solution Approach 1:
The power supply system is differentiated into two independent sources: optical power supply for normal operation and external power supply for backup, with each having distinct characteristics and reliability profiles
Solution Approach 2:
The system prepares for potential optical power supply failures by pre-configuring an external power supply unit with a power storage device, ensuring backup power is available before failures occur
3Device complexity
If a single power storage capacitor is used in the remote switching node, then device complexity is reduced, but operational stability deteriorates when power supply fails
Solution Approach 1:
The power storage function is segmented into two separate capacitors: a first capacitor charged by optical power supply and a second capacitor charged by external power supply, allowing independent operation of each power source
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
Ensures stable operation of the remote optical path switching node by providing redundant power supply through capacitors and renewable energy, enhancing reliability and reducing downtime.
Implementation Method 1
a photoelectric conversion element configured to photoelectrically convert feeding light into electric energy
Data Source
AI summary
A remote optical path switching node 10 disposed at a connection point between optical fibers includes an optical switch unit 11 that switches connection of core wires of optical fibers connected to ports, a photoelectric conversion element 13 that photoelectrically converts feeding light into electric energy, an optical power supply capacitor 14 that stores the electric energy obtained by performing the photoelectric conversion by the photoelectric conversion element 13, a manhole power generation capacitor 15 that stores electric energy supplied from a power generation unit 30, and a remote control unit 16 that supplies electric energy from at least one of an optical power supply capacitor 14 and the manhole power generation capacitor 15 to the optical switch unit 11 and controls the optical switch unit 11 to switch connection of the core wires between the optical fibers.