CN108834255A - A new multifunctional energy-saving lighting system and design method - Google Patents

Abstract

The invention provides a novel multifunctional energy-saving lighting system and design method, including a single-chip microcomputer, a wireless remote control sensor, a light sensor, an infrared sensor, a bluetooth module, an LCD display screen, an LED driver and an LED lamp group. The invention adopts a scientific and reasonable system The structural design forms a multifunctional and intelligent adjustment of the brightness of LED bulbs, so that the indoor environment will not burden the human eyes, reduce the occurrence of eye diseases, and have the functions of energy saving and emission reduction to a large extent. The lighting system provided by the invention The structure is simple, the operation is convenient, the degree of intelligence is high, and it has good economic and popularization value.

Description

A new multifunctional energy-saving lighting system and design method

technical field

The invention relates to the field of indoor lighting, in particular to a novel multifunctional energy-saving lighting system and a design method.

Background technique

In the context of the energy crisis and the deteriorating global ecological environment, the form of saving and rationally utilizing effective resources is unstoppable. China's energy crisis has become increasingly prominent, and energy shortages have restricted the rapid development of the economy. Lighting is an extremely important demand in people's lives. With the acceleration of urbanization in our country, indoor lighting systems are also being built rapidly. Intelligent control of lighting according to the brightness of indoor light can not only create a comfortable brightness condition for human eyes, but also reduce the waste of power resources to a large extent, reduce economic costs, and has a high market application prospect.

Contents of the invention

The purpose of the present invention is to provide a new multifunctional energy-saving lighting system and design method, aiming at solving the problem that the unsuitable light intensity of indoor lighting at the present stage is likely to induce eye diseases and bring about a huge waste of electricity, while ensuring indoor comfortable light On the basis of light intensity, it reduces the consumption of lighting energy, and plays the role of energy saving and intelligence.

The present invention solves the above technical problems through the following technical solutions:

A new multifunctional energy-saving lighting system, including a single-chip microcomputer, a wireless remote control sensor, a light sensor, an infrared sensor, a Bluetooth module, an LCD display and an LED driver; the light sensor is used to automatically detect the intensity of external light, and communicates with the The single-chip microcomputer is connected; the infrared induction sensor is used to adjust the light intensity through gesture sliding, and is connected to the single-chip microcomputer through the power line; the wireless remote control sensor manually adjusts the light intensity by pressing the button of the hand-held remote control , connected to the single-chip microcomputer through the power line; the bluetooth module is used to use the mobile terminal to independently adjust the light intensity of the LED bulb, and is connected to the single-chip microcomputer through the power line; the LCD display is used to display the current light intensity value, through the power line It is connected with the single-chip microcomputer; the LED driver is electrically connected with the LED light bulb group, lights up different numbers of LED light bulbs through the change of the voltage value, and adjusts the light intensity, and the LED driver is connected with the single-chip microcomputer through the power line; The single-chip microcomputer performs comprehensive processing by receiving the signal changes of the light sensor, infrared sensor, wireless remote control sensor and Bluetooth module, and uses PWM frequency modulation technology to control the LED driver module to adjust the brightness change of the LED lighting system.

A new multifunctional energy-saving lighting system, the output end of the light sensor is electrically connected to the input end of a single-chip microcomputer, and the sensor transmits the received external light intensity to the single-chip microcomputer for setting processing to automatically adjust the light intensity of the LED light group.

A new multi-functional energy-saving lighting system, the output end of the Bluetooth module is electrically connected to the input end of the single-chip microcomputer, connected to the mobile terminal through the Bluetooth protocol, and the light intensity of the LED light group is adjusted independently by using the mobile phone software program written independently .

A new multifunctional energy-saving lighting system, the infrared sensing sensor includes an infrared sensing module and a potentiometer, the potentiometer is used to adjust the infrared sensing distance, the output end of the infrared sensing module is electrically connected to the input end of a single-chip microcomputer, and the gesture recognition input The signal slides to adjust the light intensity of the LED light group.

A new multifunctional energy-saving lighting system, the wireless remote control sensor includes a wireless remote control driver, which is connected to a hand-held remote control in a wireless manner, the output end of the wireless remote control sensor is electrically connected to the input end of a single-chip microcomputer, and the hand-held remote control button Adjust the light intensity of the LED light group.

A new multi-functional energy-saving lighting system, the input end of the LCD display screen is electrically connected with the output end of the single-chip microcomputer, and the current light intensity value is displayed on the LCD screen through the processing signal received by the single-chip microcomputer.

A new multifunctional energy-saving lighting system, the input end of the LED driver is electrically connected to the output end of the single-chip microcomputer, the output end of the LED driver is electrically connected to the input end of the LED lamp group, and the processing signal received by the single-chip microcomputer is directly driven. The LED driver adjusts the light brightness of the LED lamp group.

A design method for a novel multifunctional energy-saving lighting system, comprising the following steps:

S1. In the automatic mode, when the system is enabled, the light sensor automatically detects the external light intensity, and transmits the detected light intensity value to the single-chip microcomputer for processing. When the external light intensity is strong, the LED driver drives the LED light group to weaken the lighting of the LED bulb Brightness, when the external light intensity is weak, drive the LED light group to enhance the lighting brightness;

S2. In manual mode, when the single-chip microcomputer receives the signal from the handheld wireless remote control, manually adjust the light intensity of the LED bulb through the different key numbers of the wireless remote control;

S3. In manual mode, when the MCU receives the signal from the infrared sensing module, the MCU initializes. By detecting whether there is a gesture sliding signal input, if there is a light intensity adjustment according to the set user program, if not, keep the original light intensity;

S4. In manual mode, connect the bluetooth driver module connected to the microcontroller through the mobile terminal bluetooth program, and use the self-designed photometric bar to directly control the light intensity. If other control methods are used, disconnect the mobile terminal bluetooth program;

S5. When adjusting the light intensity in manual mode, when the light intensity exceeds the real-time set light intensity range, the system will send a warning signal.

The beneficial effects of the present invention are:

1. The intelligent energy-saving lighting system provided by the present invention can adjust the light intensity of the LED in the mode of automatic adjustment and manual adjustment based on the characteristics of the ambient light ratio, which meets the requirements of multi-control;

2. The single-chip microcomputer intelligently controls the luminous intensity of the LED light. When the ambient light is strong, the luminous intensity is automatically reduced to save power. When the ambient light is weak, the luminous intensity is automatically increased, making the product humanized and more comfortable for users;

3. The user can adjust the light with hand-held remote control or infrared sensor gestures, or automatically adjust the light through the mobile phone program, which simplifies operation and improves user sensitivity;

4. There are only power input terminals, adjustment signal terminals, and power output terminals externally, which can be easily combined with the existing lighting system, which is convenient for expansion and promotion;

5. Compared with the traditional fixed LED lighting system, it only needs to add light sensors, wireless modules and Bluetooth modules, which will not have a great impact on the system cost, and the improved lighting system can save energy and reduce emissions, which is worth promoting .

Description of drawings

FIG. 1 is a schematic diagram of the overall design of a novel multifunctional energy-saving lighting system according to an embodiment of the present invention.

Fig. 2 is a schematic circuit diagram of an illumination sensing module according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of an encoding circuit of an encoder according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a decoding circuit of a decoder according to an embodiment of the present invention.

Fig. 5 is a schematic circuit diagram of an infrared sensing module according to an embodiment of the present invention.

FIG. 6 is a schematic circuit diagram of a Bluetooth module according to an embodiment of the present invention.

Fig. 7 is a flow chart of the overall design of the software of the new multifunctional energy-saving lighting system according to the embodiment of the present invention.

FIG. 8 is a flow chart of driving an illumination sensor according to an embodiment of the present invention.

FIG. 9 is a flow chart from key number input to data transmission according to an embodiment of the present invention.

Fig. 10 is a flow chart of infrared induction driving according to an embodiment of the present invention.

Fig. 11 is a flow chart of Bluetooth driver according to the embodiment of the present invention.

Detailed ways

The following is a detailed description of the embodiments of the present invention. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

The invention discloses a novel multifunctional energy-saving lighting system, as shown in Figure 1, comprising a single-chip microcomputer, a wireless remote control sensor, a light sensor, an infrared sensor, a bluetooth module, an LCD display screen and an LED driver; the wireless remote control sensor, the light sensor , the output of the infrared sensor and the Bluetooth module are electrically connected to the input of the single-chip microcomputer, the input of the LCD display and the LED driver are electrically connected to the output of the single-chip microcomputer, and the output of the LED driver is electrically connected to the LED light bulb group; The light sensor is used to automatically detect the light intensity of the outside world; the infrared sensor is used to adjust the light intensity through gesture sliding; the wireless remote control sensor manually adjusts the light intensity by pressing or not the button of the hand-held remote control; The bluetooth module is used to use the mobile terminal to independently adjust the light intensity of the LED light bulb; the LCD display is used to display the current light intensity value; the LED driver lights up different numbers of LED light bulbs through the change of the voltage value to adjust the light intensity; The single-chip microcomputer performs comprehensive processing by receiving signal changes of the light sensor, infrared sensor, wireless remote sensor and Bluetooth module, and uses PWM frequency modulation technology to control the LED drive module to adjust the brightness change of the LED lighting system.

In this embodiment, the output end of the light sensor is electrically connected to the input end of the single-chip microcomputer, and the sensor transmits the received external light intensity to the single-chip microcomputer for setting processing to automatically adjust the light intensity of the LED light group.

The circuit diagram of the light sensor module is shown in Figure 2, where the sensor in the light sensor module transmits light intensity data through the SCL clock pin and the SDA data pin, and SDA is used as the receiving and sending end of the response signal to control the start signal and stop signal, and finally the data is sent to the single chip microcomputer along the I IC bus for signal processing. In order to adjust the LED lighting system according to the different light intensity of the outside world, it needs to be driven by the light sensor, as shown in Figure 8. The light sensor module receives The data form of external light intensity converted into voltage is transmitted to the driving module for data processing. After the data is sent, it is synthesized on the receiving module, and then connected to the single-chip microcomputer through the corresponding port. The single-chip microcomputer drives the LED driver to change the LED light intensity through the transmitted data.

In this embodiment, the output end of the bluetooth module is electrically connected to the input end of the single-chip microcomputer, and connected to the mobile terminal through the bluetooth protocol, and the light intensity of the LED lamp group is adjusted independently by using the mobile phone software program written independently.

The bluetooth module circuit diagram is shown in Figure 6. The single-chip microcomputer communicates with the bluetooth module through the UART serial port. The module TXD is connected to the single-chip microcomputer RXD, and the module RXD is connected to the single-chip microcomputer TXD. The UART protocol communicates with the MCU for data transmission. In order to use the mobile terminal to adjust the light intensity independently, it is completed through the Bluetooth driver program as shown in Figure 11. The mobile terminal is connected to the Bluetooth module through the Bluetooth protocol, and the brightness bar is independently designed on the mobile terminal through Bluetooth. The driver program directly controls the Bluetooth adapter, and sends the data to the single-chip microcomputer through the serial port connection for corresponding processing of light intensity, so as to realize intelligent dimming by using the mobile terminal.

The infrared sensing sensor described in this embodiment includes an infrared sensing module and a potentiometer, and the potentiometer is used to adjust the infrared sensing distance. The output end of the infrared sensing module is electrically connected to the input end of the single-chip microcomputer, and the LED light is adjusted by sliding the input gesture recognition signal. Group light intensity.

The circuit diagram of the infrared sensor module is shown in Figure 5. The output port of the sensor module is directly connected to the IO port of the microcontroller. When there is no level change at the detection end, the output port continues to output a low-level signal. When the level change occurs at the detection end , the output port outputs a high level. The level change signal is transmitted to the single-chip microcomputer for processing through the IO port, and the corresponding light intensity change is obtained. When the infrared sensing module circuit module detects the obstacle signal in front, the green indicator light on the circuit board lights up the level, and the signal output interface Output low-level signal, in order to adjust the light intensity of the lighting system through gesture recognition, add an infrared sensor driver to the infrared sensor, as shown in Figure 10, start to initialize the single-chip microcomputer, write the gesture in advance and slide to the right The program to increase the light intensity, and the program to slide the gesture to the left to reduce the light intensity. When the infrared sensor module detects a gesture slide, it will send a pulse to the driver for sampling, and send the sampling signal to the single-chip microcomputer to run the user program. According to the written in advance The program adjusts the light intensity. When the infrared sensor module emits a pulse every time, the system automatically clears and sends the next group of pulses again. The receiving pulse end also returns to the initial state when no data is received.

The wireless remote control sensor described in this embodiment includes a wireless remote control drive, which is connected to the handheld remote control in a wireless manner, the output end of the wireless remote control sensor is electrically connected to the input end of the single-chip microcomputer, and the LED light group is illuminated through the buttons of the hand-held remote control Adjust the intensity.

The wireless remote control module is a control module composed of a wireless encoding module and a wireless decoding module. The wireless encoding module is composed of an encoder, a high-frequency regulator and a power amplifier circuit. The wireless decoding module is composed of a decoding chip and a receiving head; Figure 3 shows PT2262 encoding circuit diagram, Figure 4 is a PT2272 decoding circuit diagram, in which the PT2262 encoder transmits the encoded signal to the receiving head of the PT2262 decoder in a wireless manner under the oscillation circuit and modulation circuit, and the receiving head inputs the received data into the decoding The chip is decoded, and the corresponding instructions obtained are passed to the single-chip microcomputer for signal processing. The address codes and oscillation resistors of the PT2262 encoder and PT2272 decoder match each other to ensure that the signal is received when the distance is long. The adjustment of the light intensity needs to be completed by the wireless remote control drive as shown in Figure 9. When the power is turned on, the microcontroller is initialized, and the method of calling the key scan subroutine is used to determine whether the control key of the remote control is pressed. Find the corresponding button number according to the port value, and send the corresponding signal to the single chip microcomputer for specific processing according to the program written in different button numbers, so as to realize the remote control button to adjust the brightness of the lighting system.

The LCD display screen in this embodiment is an LCD1602 display screen, its input end is electrically connected to the output end of the single-chip microcomputer, and the current light intensity value is displayed on the display screen through the processing signal received by the single-chip microcomputer.

The input end of the LED driver described in this embodiment is electrically connected to the output end of the single-chip microcomputer, and the output end of the LED driver is electrically connected to the input end of the LED light group, and the processing signal received by the single-chip microcomputer directly drives the LED driver to adjust the LED light. The light intensity of the group.

The operating principle of the novel multifunctional energy-saving lighting system provided by the present invention is as follows:

As shown in Figure 7: when the system is started, the data is initialized, the LED bulb is lit by the duty cycle output after the microcontroller is powered on, and the light intensity value of the LED bulb lighted by the system is displayed on the LCD1602 display. , when using the hand-held wireless remote control to control the current light intensity, determine whether to increase the light intensity through the key program set in advance, if you choose to increase the light intensity, the microcontroller will increase the PWM duty cycle through the received signal from the remote control module to enhance the LED The brightness of the light bulb group, if you choose to reduce the light intensity, the single-chip microcomputer reduces the PWM duty cycle to weaken the brightness of the LED light bulb group; when no wireless remote control signal is received, the light sensor automatically detects the external light intensity, and the signal is converted by the value of the external light intensity. Pass it to the single-chip microcomputer, and the single-chip microcomputer changes the PWM duty cycle according to the external light intensity to change the brightness of the LED bulb. When the external light intensity is strong, the LED bulb brightness is weakened. When the external light intensity is weak, the LED bulb brightness is enhanced; when the system receives When the signal from the infrared sensor module is received, the brightness of the LED bulb will be changed through the input gesture signal of sliding right. If the infrared sensor module senses the signal of gesture sliding to the right, the signal transmitted by the microcontroller through the infrared module will increase the PWM duty cycle to enhance the brightness of the LED bulb. Slide the gesture to the left to reduce the PWM duty cycle and weaken the brightness of the LED bulb. The changed LED bulb intensity value will display the current light intensity on the LCD display.

The new multi-functional energy-saving lighting system provided by the present invention is assembled and tested according to the embodiment. After testing, the light intensity of the LED can be adjusted in the mode of automatic adjustment and manual adjustment, which meets the requirements of multi-control, and passed the test during the test. The test data obtained through comparative tests on the lighting system and energy-saving system are shown in Table 1 and Table 2:

Table 1

Comparison list of 3 1.2m 36W fluorescent lamps and 3 15W new energy-saving feature combination LED lamps

Table 2

Data list of light intensity (duty cycle is 70%) that meets the requirements of people's normal life

Through the above data analysis, it can be concluded that:

(1) The new multifunctional energy-saving lighting system can save energy by about 30% compared with ordinary LED lights, and reduce carbon dioxide emissions by about 30%;

(2) The new multifunctional energy-saving lighting system can save energy by about 70% compared with traditional fluorescent lamps, and reduce carbon dioxide emissions by about 70%;

(3) The new multifunctional energy-saving lighting system can not only meet people's needs for normal lighting brightness, but also achieve energy saving and emission reduction. It has objective economic benefits and can be promoted to indoor lighting public places such as schools, factories, underground parking lots, supermarkets, etc. , has a good application prospect.

Claims (8)

1. A novel multifunctional energy-saving lighting system is characterized in that it comprises a single-chip microcomputer, a wireless remote sensor, a light sensor, an infrared sensor, a bluetooth module, an LCD display screen and an LED driver; , is connected with the single-chip microcomputer through the power line; the infrared induction sensor is used to adjust the light intensity through gesture sliding, and is connected with the single-chip microcomputer through the power line; Manually adjust the light intensity, and connect with the single-chip microcomputer through the power line; the bluetooth module is used to use the mobile terminal to independently adjust the light intensity of the LED bulb, and is connected with the single-chip microcomputer through the power line; the LCD display screen is used to display the current The light intensity value is connected to the single-chip microcomputer through the power line; the LED driver is electrically connected to the LED light bulb group, and different numbers of LED light bulbs are lit through the change of the voltage value to adjust the light intensity. The LED driver is connected to the light intensity through the power line The single-chip microcomputer is connected; the single-chip microcomputer performs comprehensive processing by receiving the signal changes of the light sensor, infrared sensor, wireless remote control sensor and Bluetooth module, and uses PWM frequency modulation technology to control the LED driver module to adjust the brightness change of the LED lighting system. 2. A novel multifunctional energy-saving lighting system according to claim 1, wherein the output end of the light sensor is electrically connected to the input end of the single-chip microcomputer, and the sensor transmits the received external light intensity to the single-chip microcomputer for setting processing Automatically adjust the light intensity of the LED light group. 3. A novel multifunctional energy-saving lighting system according to claim 1, wherein the output end of the Bluetooth module is electrically connected to the input end of the single-chip microcomputer, and is connected to the mobile terminal through the Bluetooth protocol. The mobile phone software program can independently adjust the light intensity of the LED light group. 4. A novel multifunctional energy-saving lighting system according to claim 1, wherein the infrared sensing sensor comprises an infrared sensing module and a potentiometer, the potentiometer is used for adjusting the infrared sensing distance, and the output terminal of the infrared sensing module It is electrically connected to the input terminal of the single-chip microcomputer, and the light intensity of the LED light group is adjusted by sliding the input gesture recognition signal. 5. A novel multifunctional energy-saving lighting system according to claim 1, wherein the wireless remote control sensor includes a wireless remote control driver, is connected to a hand-held remote control in a wireless manner, and the output terminal of the wireless remote control sensor is connected to the The input terminal of the single-chip microcomputer is electrically connected, and the light intensity of the LED light group is adjusted through the buttons of the hand-held remote control. 6. A novel multifunctional energy-saving lighting system according to claim 1, wherein the input end of the LCD display is electrically connected to the output end of the single-chip microcomputer, and the current light intensity is converted to the current light intensity by the processing signal received by the single-chip microcomputer. The value is shown on the LCD display. 7. A novel multifunctional energy-saving lighting system according to claim 1, characterized in that, the input end of the LED driver is electrically connected to the output end of the single-chip microcomputer, and the output end of the LED driver is connected to the input end of the LED light group Electrically connected, the processing signal received by the microcontroller directly drives the LED driver to adjust the brightness of the LED light group. 8. The design method of a novel multifunctional energy-saving lighting system according to any one of claims 1-7, characterized in that it comprises the following steps: S1. In the automatic mode, when the system is enabled, the light sensor automatically detects the external light intensity, and transmits the detected light intensity value to the single-chip microcomputer for processing. When the external light intensity is strong, the LED driver drives the LED light group to weaken the lighting of the LED bulb Brightness, when the external light intensity is weak, drive the LED light group to enhance the lighting brightness; S2. In manual mode, when the single-chip microcomputer receives the signal from the handheld wireless remote control, manually adjust the light intensity of the LED bulb through the different key numbers of the wireless remote control; S3. In manual mode, when the MCU receives the signal from the infrared sensing module, the MCU initializes. By detecting whether there is a gesture sliding signal input, if there is a light intensity adjustment according to the set user program, if not, keep the original light intensity; S4. In manual mode, connect the bluetooth driver module connected to the microcontroller through the mobile terminal bluetooth program, and use the self-designed photometric bar to directly control the light intensity. If other control methods are used, disconnect the mobile terminal bluetooth program; S5. When adjusting the light intensity in manual mode, when the light intensity exceeds the real-time set light intensity range, the system will send a warning signal.