Intelligent electronic ballast with remote dimmer-type high-voltage sodium lamp, and intelligent dimming method

Abstract

The invention discloses an intelligent remote-control electronic ballast with a high-voltage sodium lamp capable of dimming in real time. The electronic ballast comprises an electronic ballast circuit board, a remote communication unit, an intelligent dimming unit, a light intensity testing unit, a signal conditioning unit and an electronic ballast shell, wherein the remote communication unit and the intelligent dimming unit are mounted on the electronic ballast circuit board; the light intensity testing unit is mounted outside electronic ballast shell; and the signal conditioning unit is also mounted on the electronic ballast circuit board. The electronic ballast forms a remote streetlamp dimming system with a remote controller and a computer terminal. The remote controller is connected with a plurality of electronic ballasts, and the computer terminal is connected with the remote controller.

Description

technical field [0001] The invention relates to an electronic ballast for a high-pressure sodium lamp, in particular to a remote dimming type intelligent electronic ballast for a high-pressure sodium lamp. Background technique [0002] Electronic ballasts are converters that convert industrial-frequency AC power into high-frequency AC power. They mainly go through two different stages: inductive and digital. [0003] Digital electronic ballasts are aimed at analog electronic ballasts. The structure of analog electronic ballasts is relatively simple, the function is relatively single, the construction of the circuit is relatively complicated, and it is not easy to realize preheating start, cut-off ( Shutdown) and other protection functions; if the above functions are to be realized on analog electronic ballasts, there are high requirements for product consistency and reliability, which are not easy to solve. However, ordinary analog electronics have cost advantages, and play...

AI Technical Summary

Problems solved by technology

[0005] At present, the function of the ballast is relatively single, and it cannot realize remote monitoring and dimming, and lacks an effective automatic dimming strategy. For example, the publication number is CN 101646296A, and the applicant is Zhao Na Invention patent, the invention patent uses a single-chip microcomputer, which cannot generate the high-frequency signals required by high-efficiency electronic ballasts, and uses power carrier communication, the control signal quality is poor, unstable, large interference, and prone to malfunction, especially when some street lights When there is a fault in the segment, communication cannot be realized; similarly, the electronic ballast of the invention is not flexible in dimming, and cannot dynamically adjust the brightness of the light according to real-time road conditions; Flexible online upgrade

This not only wastes electric energy, but also makes electronic ballasts and lamps work at full power for a long time, and the life of electronic ballasts and lamps is affected, causing a large loss of human and material resources for users.

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