CN102413617A - A kind of LED intelligent drive system with fire and anti-theft alarm function - Google Patents

Abstract

The invention relates to an LED intelligent driving system with a fireproof and antitheft alarming function, which comprises an MCU control module, a smoke sensor module, an infrared human body detection module, a GSM module, an infrared remote controller, an infrared receiver, an LED driving module, an alarm and an AC/DC power supply conversion module. The user can control the LED lamp to be turned on or off, adjust the light and set an alarm mode through an infrared remote controller or a mobile phone short message. In the alarm mode, when the smoke sensor module detects that the smoke concentration is higher than a set value, the alarm sounds, and meanwhile the MCU controls the GSM module to send alarm information to a mobile phone of a user in a Chinese short message mode; when the infrared human body detection module detects human body activity, the alarm sounds, the MCU controls the LED driving module to light the LED lamp, and controls the GSM module to send alarm information to the mobile phone of the user in a Chinese short message mode. The system integrates the LED driving system and the alarm system, not only saves the installation space, but also improves the practicability of the system, and has the advantages of simple structure, low cost, easy realization and the like.

Description

A kind of LED intelligent drive system with fire and anti-theft alarm function

technical field

The invention relates to an LED intelligent driving system, in particular to an LED intelligent driving system with fire prevention and anti-theft alarm functions.

Background technique

Currently, the lighting fixtures and alarms used indoors have a single function and are independent of each other, which cannot meet the comfort and safety requirements of people today.

The development of a new generation of white light LED lighting sources has led to the gradual application of LED lamps in home lighting and stadium lighting. However, most LED lamps are currently controlled by traditional wall switches, which have a single function and can only be controlled by switches. There is often a problem of energy waste caused by forgetting to turn off the lights. Someone invented a remote control LED power supply (public number: 101868098A), which uses infrared remote control to switch and adjust the LED power supply. However, the infrared remote control can only be controlled at a short distance, and is affected by obstacles, so it cannot realize remote control of LED lamps. control.

Now families and other places are often left unattended, which makes the safety of these places a huge hidden danger. It is inevitable to install alarms, but one alarm can only alarm for one situation, and safety must be ensured. Various alarms will be installed, and these alarms will take up a lot of space and affect the appearance.

Contents of the invention

In view of the above problems, the present invention proposes a LED intelligent driving system with fire prevention and anti-theft alarm function, which integrates the LED driving system and the alarm system, and the system can switch and dim the LED lights and set the alarm mode. Indoors can be controlled by infrared remote control, and outdoors can be remotely controlled by mobile phone text messages. In the alarm mode, when the indoor smoke concentration reaches the set value or someone breaks in, the system will send the alarm information to the user's mobile phone in the form of Chinese text messages. superior.

The technical scheme of the present invention is: an LED intelligent drive system with fire prevention and anti-theft alarm function, including MCU control module, smoke sensor module, infrared human body detection module, GSM module, infrared remote controller, infrared receiver, LED drive module, alarm device and AC/DC power conversion module; the smoke sensor module is used to detect liquefied petroleum gas, natural gas, city gas, etc.; the infrared human body detection module is used to detect whether there is human activity in the room; the GSM module communicates with the MCU through the serial port Communication, used for receiving control signals and sending alarm information; the infrared receiver is an integrated infrared receiving demodulator, directly connected to the MCU, and used to receive control signals sent by the infrared remote controller; the LED driver module directly It is connected with MCU, has a PWM dimming interface and can set the size of the output current through an external resistor; the alarm is a buzzer for sound alarm; the input end of the AC/DC power conversion module is directly connected to 220V AC, The output terminal can output +24V and +5V DC voltage to provide the required voltage for each module of the system.

The invention has positive effects: the system integrates the LED intelligent driving function and the fire prevention and anti-theft alarm function, which not only saves the installation space but also improves the practicability of the system. Users can control the LED light switch, dimming and set the alarm mode through the infrared remote control or SMS. In the alarm mode, when the smoke sensor module detects that the smoke concentration is higher than the set value, the alarm will sound, and the MCU controls the GSM module to send the alarm information to the user's mobile phone in the form of a Chinese text message; when the infrared human body detection module detects When the human body is active, the alarm sounds, and at the same time, the MCU controls the LED driver module to light up the LED light, and controls the GSM module to send the alarm information to the user's mobile phone in the form of a Chinese text message.

Description of drawings

Fig. 1 is a general structural diagram of an LED intelligent driving system with fire prevention and anti-theft functions provided by the present invention.

Fig. 2 is a functional flowchart of an LED intelligent drive system with fire prevention and anti-theft functions provided by the present invention.

Detailed ways

Please refer to Fig. 1, the present invention includes MCU control module, smoke sensor module, infrared human body detection module, GSM module, infrared remote control, infrared receiver, LED drive module, alarm and AC/DC power conversion module. The smoke sensor module, infrared human body detection module, infrared receiver, LED driver module and alarm are all directly connected to the MCU, and the GSM module is connected to the MCU through the RS232 serial interface. The MCU control module uses a single-chip microcomputer as the control core to control and coordinate each module to achieve preset functions; the smoke sensor module is used to detect liquefied petroleum gas, natural gas, city gas, etc. When the concentration reaches the preset value, the output of the module output is low The level signal is transmitted to the single-chip microcomputer; the infrared human body detection module is used to detect whether there is human activity in the room, and when human activity is detected, the output terminal of the module outputs a high-level signal and transmits it to the single-chip microcomputer; the core chip of the GSM module adopts the TC35 wireless module , the module communicates with the single-chip microcomputer through the RS232 serial port, and is used to receive mobile phone control short messages and send alarm short messages to the user's mobile phone; the infrared remote control uses PT2248 as the transmitting chip for encoding and transmitting infrared control signals; the infrared receiver adopts integrated The integrated infrared receiving demodulator MIM-R1AA38 is used to receive the control signal sent by the infrared remote control and transmit the processed signal to the single-chip microcomputer; the LED driver module is powered by +24V DC, and the output terminal can be directly connected to the LED lamp. Using LM3407 as the driver chip, the chip has a PWM dimming interface, through the PWM signal output by an external microcontroller, the LED light can be switched and dimmed; the system uses a buzzer as an alarm for sound alarm; AC/DC power supply The input terminal of the conversion module is directly connected to the mains, which can convert the 220V AC power into +24V and +5V low-voltage DC power to supply power for each module of the system.

Please refer to Figure 2, when the user is indoors, the infrared remote controller can be used to switch and dim the LED lights connected to the system LED driver module, and one or more of the alarm functions can be set or canceled; when the user is in When outdoors, the LED lights connected to the LED drive module of the system can be switched and dimmed through mobile phone text messages, and one or more of the alarm functions can be set or canceled. In the alarm mode, when the infrared human body detection module detects human activities in the room, the single-chip microcomputer controls the alarm to sound, and at the same time controls the LED driver module to light up the LED light and controls the GSM module to send the alarm information to the user's mobile phone in the form of a Chinese text message ; When the smoke sensor module detects that the concentration of indoor liquefied petroleum gas, natural gas or city gas is higher than the preset value, the single-chip microcomputer controls the alarm to sound, and at the same time controls the GSM module to send the alarm information to the user's mobile phone in the form of a Chinese text message.

Claims (8)

1. An LED intelligent drive system with fire prevention and anti-theft alarm function, is characterized in that the system includes MCU control module, smoke sensor module, infrared human body detection module, GSM module, infrared remote controller, infrared receiver, LED drive module, alarm converters and AC/DC power conversion modules. The smoke sensor module, the infrared human body detection module, the infrared receiver and the alarm are directly connected with the MCU control module, and the GSM module is connected with the MCU control module through a serial port. 2. A kind of LED intelligent drive system with fire prevention and anti-theft alarm function according to claim 1, characterized in that, the smoke sensor is a sensor with good sensitivity to liquefied petroleum gas, natural gas, city gas, etc. 3. A kind of LED intelligent drive system with fire prevention and anti-theft alarm function according to claim 1, characterized in that the infrared human body detection module adopts a pyroelectric sensor capable of detecting infrared rays emitted by people or animals. 4. A kind of LED intelligent drive system with fire prevention and anti-theft alarm function according to claim 1, characterized in that, the GSM module adopts TC35 wireless module. 5. The LED intelligent drive system with fire prevention and anti-theft alarm function according to claim 1, wherein the infrared receiver is an integrated infrared receiving demodulator. 6. The LED intelligent drive system with fire and theft alarm function according to claim 1, wherein the LED drive module has a PWM dimming interface, and the output current can be set through an external resistor. 7. The LED intelligent drive system with fire prevention and anti-theft alarm function according to claim 1, wherein the alarm is a buzzer. 8. The LED intelligent driving system with fire prevention and anti-theft alarm function according to claim 1, characterized in that the input end of the AC/DC power conversion module is directly connected to 220V alternating current, and the output end can output +24V and +5V DC voltage.

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