CN106455240A - Multifunctional intelligent LED lighting system - Google Patents

Abstract

The invention relates to the field of smart home, in particular to a multifunctional smart LED lighting system. The system uses a single-chip microcomputer as the control core, and has the functions of ultrasonic distance measurement, LED display control, liquid crystal display control, environmental monitoring control, voice control, timing and timing shutdown. It can automatically and manually realize the stepless adjustment of the brightness of the LED lighting system, can realize direct control through voice, can use the LCD screen to display information such as temperature, humidity, light intensity, time and running time, and also considers the design of heat dissipation. The beneficial effect of the present invention is that through the stepless adjustment of the brightness of the LED lighting system, the energy consumption of the lighting lamp is further reduced, and the control is simpler and more convenient through the voice control; Words, adding wake-up entries and other functions have improved the reliability of the system; through functions such as liquid crystal display temperature, light intensity, humidity, playing background music, and timing shutdown, the functions of the LED lighting system are more humanized and diversified, meeting the requirements of modern lighting systems. The needs of life for smart homes.

Description

A multifunctional intelligent LED lighting system

technical field

The invention relates to the field of smart home, in particular to a multifunctional smart LED lighting system.

Background technique

With the improvement of people's living requirements, lighting fixtures, as an indispensable part of modern life, have received extensive attention. LED (Lighting Emitting Diode) lighting is light-emitting diode lighting, which is a semiconductor solid-state light-emitting device. It uses a solid semiconductor chip as a light-emitting material. In the semiconductor, the excess energy is released through the recombination of carriers to cause photon emission, and directly emits red, yellow, blue, and green light. On this basis, using the principle of three primary colors, Adding fluorescent powder can emit light of any color such as red, yellow, blue, green, blue, orange, purple, white, etc. LED lamps are lighting fixtures that use LEDs as light sources.

LED has the characteristics of high luminous efficiency, low voltage, low energy consumption, less heat generation, long life and easy control. Under the same brightness, the energy consumed by the LED light source is 10% of the incandescent lamp and 50% of the fluorescent lamp. In my country, the annual electricity consumption for lighting accounts for 12% of the total electric energy consumption. It is reported that if all the existing incandescent lamps are replaced with energy-saving lamps, the electric energy that can be saved is 48 billion kwh a year. At present, as LEDs are gradually introduced into the indoor and outdoor lighting markets, the price of LED lighting has also dropped significantly.

At present, the main LED lighting fixtures on the market only use LED as a substitute light source for traditional incandescent lamps, and its good controlled performance (for example, stepless dimming) cannot be brought into play, and its functions are also very single. Therefore, it is necessary to excavate and use the performance of LED to achieve the function of making the best use of everything, and to develop a multifunctional intelligent LED lighting system that meets people's living requirements.

Contents of the invention

The object of the present invention is a multi-functional intelligent LED lighting system to solve the problems in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a multi-functional intelligent LED lighting system with a single-chip microcomputer as the control core, with ultrasonic distance measurement, LED display control, liquid crystal display control, environmental monitoring control, voice control, timing and timing shutdown Features.

Furthermore, the above-mentioned multifunctional intelligent LED lighting system is characterized in that it adopts a "soft switch" based on ultrasonic distance measurement to perform on/off control and stepless brightness adjustment of the LED lighting system.

Further, the multi-functional intelligent LED lighting system is characterized in that it has a liquid crystal display module, which can display information such as current temperature, humidity, light intensity, time and running time.

Further, the described multi-functional intelligent LED lighting system is characterized in that a voice module is developed, which adopts non-specific human voice speech recognition technology, and has the functions of voice control, voice answering, and playing background music; the voice module also has three questions. Timekeeping function, can voice timekeeping. The speech module is also filled with junk words, which increases the system's fault tolerance; the speech module is also provided with wake-up entries to prevent misoperation.

Further, it is characterized in that there are two modes of manual and automatic control, the brightness of the lamp can be manually controlled and adjusted, and automatic control can also be completed through voice and ultrasonic ranging module signals, and it can be combined with the clock system to realize timing shutdown.

Furthermore, the above-mentioned multi-functional intelligent LED lighting system is characterized in that heat dissipation copper pillars are added between the LED array and the driving circuit board to create a certain gap, so that air can flow between the gaps and improve the heat dissipation effect.

Compared with prior art, the beneficial effect of the present invention is:

(1) Utilize the ultrasonic ranging signal to control the brightness of the LED lighting system and perform stepless adjustment. When the distance between people is relatively long or there is no one, the low-energy working mode is adopted to further reduce the energy consumption of the lighting system.

(2) Voice control makes the control easier and more convenient. The reliability of the system is improved by using functions such as filling garbage words and adding wake-up entries.

(3) Through functions such as liquid crystal display of temperature, light intensity, humidity, playing background music, and timing shutdown, the functions of the LED lighting system are more humanized and diversified, meeting the needs of modern life for smart homes.

Description of drawings

Fig. 1 is a structural block diagram of a multifunctional intelligent LED lighting system of the present invention;

Fig. 2 is a main circuit wiring diagram of a multifunctional intelligent LED lighting system of the present invention;

Fig. 3 is a kind of multifunctional intelligent LED lighting system voice module software block diagram of the present invention;

Fig. 4 is a flow chart of the main program of a multifunctional intelligent LED lighting system of the present invention;

Fig. 5 is a flow chart of an interruption subroutine of a multifunctional intelligent LED lighting system according to the present invention.

Reference signs: 1-initial mode, 2-sleeping mode, 3-lighting control, 4-music playing, 5-system setting.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figure 1:

The multifunctional intelligent LED lighting system uses a single-chip microcomputer as the control core, and has the functions of ultrasonic distance measurement, LED display control, liquid crystal display control, environmental monitoring control, voice control, timing and timing.

The ultrasonic ranging can detect whether there are people in the room and how far the distance is, so as to control the brightness of the light and achieve the purpose of energy saving.

The LED control function can realize stepless dimming according to the monitoring signal or voice.

The liquid crystal display function can display information such as temperature, light intensity, humidity, and time.

The environment monitoring function can detect the light intensity and temperature at the same time, and the detection results are displayed in real time.

The voice control function can control lights according to voice, can recognize the voices of multiple users, and can play music.

The time function can realize turning off the lights at regular intervals, as well as timing and liquid crystal display.

Please refer to Figure 2:

The multi-functional intelligent LED lighting system takes the main control chip (STC12C5A60S2) as the core, and communicates with AD/DA through an analog bus;

Connect with the ultrasonic ranging module through Trig and Rcho, and connect with the LED driver through the PWM output signal; realize stepless adjustment of light intensity.

Communicate with the RTC 1302 clock module through I/O, DAT, and RST ports, and the system shares the same ground. Adding an RTC module to the lighting system can facilitate users to know the current time in actual use and provide the function of system timing switch.

In addition, the system communicates with the voice module through the P port, and connects with the 1602A liquid crystal display through the seat.

Please refer to Figure 3:

The voice module has 5 modes in total: initial mode 1, sleep mode 2, and 3 working modes: lighting control 3, music playing 4, and system setting mode 5.

The initial mode 1 is mainly used for system initialization and variable allocation, but after the system is powered on, it enters the initial mode by default.

The lighting mode 3 is mainly used for lighting control of LEDs, including operations such as on, off, bright, dark, etc., and has a warning prompt function.

The music playing mode 4 is used to play background music preset into the system, and more background music can also be added through system upgrade.

The system setting mode 5 is used to redefine the volume of the system, and this setting function is also controlled by voice.

When the system is idle for a long time, it will automatically enter the sleep mode 2. After entering sleep mode 2, the system needs to be woken up before further control work can be performed.

At the same time, the dormant mode 2 can also be awakened by setting a specific identification entry to realize a function similar to a combination lock and prevent user misoperation.

The voice module has also been filled with junk words, which increases the system's fault tolerance. It has the function of minute repeater and can tell the time by voice.

See Figure 4:

The main program of the multifunctional intelligent LED lighting system is a loop detection, processing and display program embedded with conditional statements, which is used for collecting and displaying environmental data. The main function of the embedded conditional statement is to realize the manual control function: when the condition is met, the LED light is allowed to be controlled manually; when the condition is not met, the statement is directly skipped and the automatic control is performed.

Please refer to Figure 5:

The interrupt used by the interrupt subroutine is external interrupt 0, which has the highest priority. The main function of the interrupt subroutine is to connect with the voice module, obtain the data output by the voice module, and adjust the system according to the content of the data, such as switching lights, adjusting brightness, etc. First enter the interrupt subroutine, then record the system state, obtain the external communication signal, control the LED light according to the signal, restore the system state after the control is completed, and exit the interrupt.

The multifunctional intelligent LED lighting system described in this embodiment further reduces the energy consumption of lighting lamps through the stepless adjustment of the brightness of the LED lighting system, and makes the control simpler and more convenient through voice control; through voice control, the control is more convenient. For simplicity and convenience, functions such as filling garbage words and adding wake-up entries are used to improve system reliability; through functions such as liquid crystal display temperature, light intensity, humidity, playing background music, and timing shutdown, the functions of the LED lighting system are more humanized And diversification, to meet the needs of modern life for smart home.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (6)

1. a kind of multifunctional intellectual LED illumination System is with single-chip microcomputer as control core, with ultrasonic ranging, LED display control, LCD Controller, environmental monitoring control, Voice command, timing and timing shutdown function.

2. a kind of multifunctional intellectual LED illumination System according to claim 1, it is characterised in that using based on ultrasound Away from " Sofe Switch ", carry out the open and close control of LED illumination System, stepless brilliance and adjust etc..

3. a kind of multifunctional intellectual LED illumination System according to claim 1, it is characterised in that with liquid crystal display mode Block, can show the information such as Current Temperatures, humidity, light intensity, time and run time.

4. a kind of multifunctional intellectual LED illumination System according to claim 1, it is characterised in that develop voice module, Nonspecific voice speech recognition technology is employed, with Voice command, voice answer, function of playing background music；Voice module Also with three, time reporting function is asked, can be with speech chronopher.The voice module has also carried out the filling of rubbish word, increased System Fault Tolerance Ability；The voice module is also provided with waking up entry, to prevent maloperation.

5. a kind of multifunctional intellectual LED illumination System according to claim 1, it is characterised in that have and manually and automatically control Both of which, can control and adjust the brightness of lamp manually, it is also possible to by voice, be completed by ultrasonic distance measuring module signal Automatically control, timing shutdown can be realized in conjunction with clock system.

6. a kind of multifunctional intellectual LED illumination System according to claim 1, it is characterized by LED array and drive circuit Between plate, radiating copper post is added, certain space is manufactured, enable air to flow between space, improve radiating effect.