PSE Chip Virtual Grouping for Simultaneous PoE Control
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Solution Overview
Problem
Conventional Power over Ethernet (PoE) systems struggle to simultaneously control multiple powered devices, particularly in Lighting over Ethernet applications where multiple light sources need to be powered simultaneously, as existing solutions manage power supply based on individual ports rather than groups.
Innovation Solution
A Power Sourcing Equipment (PSE) chip with registers that allow for the grouping of powering channels into virtual groups, enabling simultaneous control through a single instruction by using a virtual address and channel indication values, allowing multiple powering channels to be managed collectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If power supply is managed based on individual ports, then each port can be controlled independently, but multiple powered devices cannot be controlled simultaneously
Solution Approach 1:
The patent merges multiple individual port control functions into a single virtual group control function. By defining virtual powering groups that can include multiple ports, the system allows a single write instruction to control multiple powered devices simultaneously, transforming individual port control into collective group control while maintaining the underlying independence of each port.
2Device complexity
If conventional PSE chip with single register is used, then the structure is simple, but it cannot support simultaneous control of multiple PDs
Solution Approach 1:
The patent enhances the conventional single-register structure by introducing virtual group identifiers and channel indication values that enable the same register to serve multiple functions: individual port control and collective group control. This multi-functional approach allows the register system to adapt to different control scenarios without increasing hardware complexity.
Data Source
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AI summary
The present invention relates to the field of power over Ethernet (PoE), and in particular, to a power sourcing equipment (PSE) chip, a power sourcing equipment, and a power over Ethernet system and method. The PSE chip includes a first register; the PSE chip controls a powering channel of the PSE chip according to a value stored in the first register; the PSE chip changes, in response to a second instruction, the value stored in the first register into a calculated value, where the second instruction includes a second slave address, a first command byte, and a second data byte, the second slave address is a virtual address of a virtual powering group, and the calculated value is a result obtained by calculation according to the second data byte and a channel indication value that is of the virtual powering group and stored in the PSE chip. According to the present invention, information indicating whether a powering channel is added to a virtual powering group is stored in a PSE chip, so that powering channels added to a virtual powering group can be controlled at a time.