Panel and lamp control method based on closed carrier technology

Abstract

The invention provides a panel and lamp control method based on a closed carrier technology. The panel and lamp control method based on the closed carrier technology comprises the following steps: step 11, according to user operation, sending a control signal to a panel through a wireless communication module of a hand-held device by a command code of an APP (application); step 12, after the panel receives the control signal, judging whether the control signal is a signal rightly sent to the panel, if so, analyzing the command, repackaging information, and closing a power line between the panel and lamps hung therebelow into an independent channel by using a high-frequency band-stop filter, and after channel monitoring of the panel, modulating digital signals into carrier signals, coupling the carrier signals to the power line and sending the carrier signals to multiple lamps hung therebelow by a MCU (microcontroller unit), and replying an acknowledgment frame to the APP; step 13, after the lamps receive the carrier signals, demodulating the carrier signals first into digital signals, and judging whether an ID is an ID of a current lamp, and if so, sending a PWM (pulse-width modulation) signal to control the lamp to achieve dimming or turn on or off the lamp by the MCU according to a command. In the panel and lamp control method, a closed carrier channel is used between the panel and a lamp system, so that anti-interference is strong and control operation is simple and easy.

Description

technical field [0001] The invention relates to the field of lamp control of indoor AC power supply lines, and more specifically relates to a carrier communication method based on AC power supply lines and with a controllable communication range. Background technique [0002] Traditionally, the following technologies are generally used for dimming control of lamps: 1. Install a thyristor in the switch panel, and control the conduction angle of the thyristor through the knob on the panel to control the brightness of the lamp. 2. Two additional communication lines are laid between the panel and the lamp. The panel sends the dimming signal to the dimming controller of the lamp head through the communication line. 3. The communication between the panel and the lamp adopts the wireless radio frequency (RF) method to replace the communication line in 2, and the dimming is realized through the wireless method. [0003] The above methods have their own characteristics, but there ar...

AI Technical Summary

Problems solved by technology

[0003] The above methods have their own characteristics, but there are also obvious problems: 1. The thyristor method is used. Due to the characteristics of the thyristor itself, its reliability is not high, and it can only realize one-way dimming without lamps. Information feedback and communication functions, if several lights are installed under one panel, then these lights can only be controlled at the same time

2. Dimming by laying communication lines requires additional wiring, which increases construction difficulty and cost, and the interface of the lamp is not compatible with the interface of the traditional lamp (there are more communication line interfaces)

3. Using the wireless radio frequency method, the RF receiving module needs to be placed on the lamp head, and the temperature of the lamp head is relatively high. In order for the RF module to work normally, the power of the lamp must be limited, and a good heat dissipation design must be required

This increases the difficulty of lamp holder mold design and manufacture, and the antenna of the RF module is integrated in the lamp holder, and there are special regulations on the installation position of the lamp

At the same time, multiple wireless modules are installed within a certain space range. Since they share a channel, there will be crosstalk problems, and the matching operation for the initial installation is also more complicated.

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