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Method and system for communicating with a lighting unit via a power bus

A power bus, power supply technology, applied in the field of lighting systems, can solve problems such as the central controller cannot recognize the addition or removal, the command of the lighting unit is misinterpreted or lost, and the individual control of a single lighting unit is prevented.

Inactive Publication Date: 2016-07-06
TERRALUX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these systems are susceptible to noise and / or transmission problems such that commands sent to the lighting unit are misinterpreted or lost, and data received from the lighting unit is corrupted
Additionally, it may be difficult or impossible to identify a lighting unit among multiple units connected to a central controller, which prevents individual control of individual lighting units
This difficulty is severe in systems where the number of lighting units is not known at the time of manufacture or installation (for example, lighting units may be added or removed from the system during its post-installation lifetime), since the central controller may not recognize the number of lighting units to add or remove. removed, causing additional communication problems

Method used

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  • Method and system for communicating with a lighting unit via a power bus
  • Method and system for communicating with a lighting unit via a power bus
  • Method and system for communicating with a lighting unit via a power bus

Examples

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Embodiment Construction

[0026] figure 1 is a block diagram of a lighting system 100 implemented according to an embodiment of the present invention. An AC power source 102 (eg, a household wall outlet or other suitable power source) powers a power converter 104 that converts input electrical energy into a form suitable for powering a light source 106 . Only one light source 106 is shown, but the system is capable of supporting multiple light sources 106 up to the maximum number supported by the maximum power output of the power converter 104 . The converted power may be AC ​​or DC power and distributed by the power bus 108 as required by a particular application. Central controller 110 communicates with one or more light sources 106 using power bus 108; central controller 110 may be powered by separate power supply link 112, power bus 108, or in any other manner. Communication ports 114, 116 may be used by central controller 110 and light source 106 to interface with power bus 108, respectively. ...

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Abstract

The first entity communicates with the second entity over the shared power bus by switching the bus to a high impedance state and modifying the voltage on the power bus according to the outgoing communication such that the second entity detects the modified voltage and receives the communication.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit to US Provisional Patent Applications Serial Nos. 61 / 383,506 and 61 / 383,517, filed September 16, 2010, the entire contents of which are hereby incorporated by reference. technical field [0003] Embodiments of the invention generally relate to lighting systems having multiple light sources controlled and managed by a central controller. Background technique [0004] A lighting system comprising multiple light sources may have circuitry common to all light sources, such as a power supply, located in a central controller, rather than including redundant identical circuitry at each light source. A central power supply can reduce the cost of a lighting system, for example by using fewer overall components, and reduce the power consumption of the system, allow for smaller and cooler light sources, and provide more convenient access points for maintenance or repair . Such a sys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02H05B33/08H05B44/00
CPCH05B47/185H05B45/18H05B47/198G05B11/01
Inventor A·卡塔拉诺J·A·考斯奇
Owner TERRALUX