CN201886735U - Remote control LED (light emitting diode) light-emitting word control system - Google Patents

Abstract

The utility model discloses a remote control LED light-emitting character control system, which comprises a remote controller S2 and a control processor S4, wherein the control processor S4 comprises a power supply module, a control module, a battery power supply module and a clock module. At least one LED drive module and a remote control receiving module S3 for receiving remote control signals; the remote control receiving module S3 and the LED drive module are all connected to the control module, the luminous characters to be controlled are connected to the LED drive module, and the power supply module is other modules powered by. The remote controller S2 includes a key module, an encoding module, a modulating and transmitting module S1, and a power supply module; the encoding module is connected to the key module, and the modulating and transmitting module S1 is connected to the encoding module. The utility model enables the user to freely set the color of the luminous characters and the dynamically changing parameters through the remote controller S2, thereby realizing the interaction between people and the luminous characters. Timing automatic and remote control manual switch machine make the installation wiring and user operation more convenient and simple.

Description

A remote control LED luminous word control system

Technical field

The utility model relates to LED control technology, in particular to a remote control LED light-emitting character control system.

Background technique

With the advancement of solid-state light source LED technology and the gradual decline in cost, the LED lighting and decoration and beautification industries centered on it are developing rapidly. As one of the important components, LED luminous characters can be seen everywhere. At present, there have been luminous character controllers on the market, which can dynamically change the luminous characters. But these controllers can only adjust the speed of change at most, and the user can't change the color arbitrarily, and it is carried out by the dial switch on the controller, and the controller is generally all installed in a very high place during actual installation. All these bring great inconvenience to the user.

Contents of the invention

In order to make up for the above deficiencies, the utility model provides a remote control LED light-emitting character control system. The system has the following three main functions:

1. The color can be changed automatically, and the user can adjust the changing parameters through the remote control.

2. The user can set the color at will through the remote control. When controlling the three-color luminous characters, 16777216 colors can be set under 8-bit PWM.

3. Timing or remote control manual switch.

The technical solution adopted by the utility model is: a remote control LED light-emitting character control system, including a remote control S2 and a control processor S4, and the control processor S4 includes a power supply module, a control module, at least one LED drive module and a The remote control receiving module S3 that receives the remote control signal; the remote control receiving module S3 and the LED drive module are all connected to the control module, the luminous characters to be controlled are connected to the LED drive module, and the power supply module supplies power to other modules.

The remote control S2 includes a key module, a coding module, a modulation and transmission module, and a power supply module; the coding module is connected to the key module, and the modulation and transmission module S1 is connected to the coding module.

The encoding module in the remote controller S2 generates a corresponding control code according to the user's keystroke code, and then modulates the control code on a carrier wave and transmits it into space. The remote control receiving module S3 of the control processor S4 demodulates the control code from the carrier wave and sends it to the control module, and the control module performs corresponding processing.

The control module adjusts the grayscale of each color channel of the luminous characters in PWM mode through the LED driver module. When the LED drive output of the control processor is not enough, it can be extended with the expansion interface.

The control processor S4 is equipped with a battery-powered module and a clock module; the clock module provides a reference clock for the timing switch of the controller; the battery-powered module enables the clock module to still time correctly when the control system is powered off.

The beneficial effect of the utility model is that it enables the user to freely set the color of the luminous characters and the dynamically changing parameters through the remote controller S2, thereby realizing the interaction between people and the luminous characters. Timing automatic and remote control manual switch makes installation, wiring and user operation more convenient and simple.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Figure 1 is a block diagram of the new circuit.

FIG. 2 is a schematic diagram of the remote controller S2.

Figure 3 is a circuit diagram of the LED driver module.

Remote control modulation transmitter module S1, remote control S2, remote control receiving module S3, control processor S4, power input J1; overall brightness adjustment area P1, status setting area P2, color setting area P3, time adjustment area P4, change style setting Area P5; a color channel LED1 on the luminous characters.

Detailed ways

Referring to Figure 1 and Figure 2, the entire LED luminous character control system includes a remote controller S2 and a control processor S4, the remote controller S2 includes a button module, a coding module, a modulation and transmitting module S1, and a power supply module; the coding module is connected to the button module , the modulating and transmitting module S1 is connected to the coding module.

The control processor S4 includes a power supply module, a control module, at least one LED driver module and a remote control receiver module S3 for receiving remote control signals; Connect to the LED driver module. J1 is the power input interface of the entire control processor, usually the same as the power supply voltage of the luminous characters, which is DC12V. The power supply module transforms DC12V into the DC5V voltage required by other modules. It is a typical application of a 7805 (three-terminal regulator).

The overall brightness adjustment area P1 of the remote control S2 adjusts the brightness of the entire luminous characters, and the color setting area P3 has 14 preset colors, and the gray scale of each channel can be adjusted separately through 3 groups of 6 adjustment buttons in P3, and can be adjusted again if necessary. Change the predetermined color button according to the need (R, G, B, W four can not be changed), so as to replace the predetermined color with the current color; the change style setting area P5 can set a variety of change styles for the luminous characters, and the change speed can be adjusted .

During adjustment, the code transmitting module in the remote controller S2 generates a corresponding control code according to the code of the user's button action, and then modulates the control code on the carrier wave and transmits it into space. The carrier wave can be infrared or radio frequency. The difference is that the infrared remote control circuit is simple and the technology is mature, but the remote control distance is short, it can only transmit in a straight line, and cannot avoid obstacles. When remote control needs to be aligned with the remote control receiving window, Relatively inconvenient.

The radio frequency method can be remotely controlled without alignment and can pass through obstacles, but the circuit is more complicated, but there are many ready-made modules that can be used directly: the wireless transmitting module usually has 3 pins and an antenna interface, two of them It is the positive and negative poles of the power supply, and the other is the input of the unmodulated control code signal; the wireless receiving module generally has 3 pins and an antenna interface, two of which are the positive and negative poles of the power supply, and the other is the demodulated control signal output.

The remote control receiving module S3 of the control processor S4 is responsible for receiving the modulated signal and demodulating the output to the control module for processing. The control module is composed of STC51 series single-chip microcomputer, power-on reset circuit and crystal oscillator circuit. various information.

The processing results of the control module are displayed on the luminous characters through the LED driver module.

One LED driver module can drive at least one color channel. In actual use, each LED driver module generally drives one color channel, which is equivalent to a switch controlled by a routing control module. Its circuit is shown in Figure 3, where LED1 represents light A color channel on the word. When P0.1 is at a high level, Q801 is turned on, and LED1 is equivalent to being connected between the two poles of the power supply VDD and GND. At this time, LED1 is on, otherwise it is off. When the luminous characters have three color channels, according to the PWM (Pulse Width Modulation) principle, the grayscale of the relevant color channel can be adjusted by adjusting the duty cycle, and 16777216 colors can be transformed under 8-bit PWM.

The state setting area P2 of the remote control S2 can manually light up or turn off the luminous characters. When the timer needs to be switched on and off, the current clock can be adjusted through the SC key in the time adjustment area P4 and the number keys on the color setting area P3, and the ST key is Adjust the timing of switching on and off. When adjusting, first press the SC or ST key, then input a group of time numbers according to the predetermined format, and finally press the OK key to control the processor S4 to store the current settings in the EEPROM of the single-chip microcomputer.

The clock module is used for timing, and if the timing is realized by 51 single-chip microcomputer, the error is relatively large. The clock module can be composed of a serial clock chip DS1302, which provides a high-precision clock for the control module. A backup battery allows the clock module to keep time correctly even when the system is powered off.

As long as the power is not turned on, the single-chip microcomputer reads the data in the clock module every one minute, and compares it with the set power on and off time, and if they are the same, it will perform the corresponding power on or power off action. When shutting down, the control module turns off the output of each channel of the LED driver module, so that the luminous characters are extinguished.

When the LED drive output of the control processor S4 is not enough, it can be expanded with the expansion interface. There are two types of expansion interfaces: one is the direct control interface, as long as the unitized LED driver module is connected to this interface, the luminous characters can be driven. Simple and low cost, but the number of extensions is limited; the second is the serial port, which is then connected to a shift register such as 74HC595 to convert it into a parallel output to the LED driver module, thereby driving the luminous characters.

In addition, they are all mature technologies and will not be repeated here.

Claims (3)

1. remote control LED luminescent characters control system, it is characterized in that, comprise telepilot (S2) and processor controls (S4), described processor controls (S4) comprises power module, control module, at least one LED driver module and the remote control receiver module that is used to receive remote signal; Remote control receiver module, LED driver module all are connected on the control module, need the luminescent characters of control to be connected on the LED driver module, and power module is other each module for power supply;

Described telepilot (S2) comprises key-press module, coding module, modulate emission module (S1), supply module; Coding module is connected on the key-press module, and modulate emission module (S1) is connected on the coding module.

2. a kind of remote control LED luminescent characters control system according to claim 1 is characterized in that described processor controls comprises the output expansion interface.

3. a kind of remote control LED luminescent characters control system according to claim 1 and 2 is characterized in that the powered battery module being arranged, clock module on the described processor controls.

Images