CN201119071Y - Light control device to confuse burglars - Google Patents

Abstract

The utility model relates to a light control device capable of confusing thieves, which is composed of a stabilized power supply, a photoelectric sensor, a normally open button switch, a single-chip microcomputer, a power output gate, a relay, an output socket, and a light-emitting diode connection. The output end of the photoelectric sensor is connected to The input port of the single-chip microcomputer, the normally open button switch is connected to the input port of the single-chip microcomputer, the other end of the button switch is grounded, the output port of the single-chip microcomputer is connected to the power output gate, the output port of the single-chip microcomputer is also connected to a light-emitting diode, the power output gate is connected to the relay, and the relay's The working contact is connected to the 220V AC power supply and the output socket. It is a control device that can automatically switch on and off the console lamp or other lamps at night, simulating the situation that someone uses the lamp at home.

Description

Light control device to confuse burglars

technical field

The utility model relates to a lighting control device capable of confusing thieves. The device is composed of a single-chip microcomputer control system and can control the automatic alternate connection of lamps connected to output sockets.

Background technique

At present, thieves burglary often occur. In addition to strengthening inspections and installing various alarm systems, people often use lights at home, which can also make thieves give up the purpose of committing crimes. However, if you do not spend the night at home for a long time such as business trips, tourism, or going abroad, thieves will see that this family does not turn on the lights every night and increase the probability of being stolen. The utility model can solve this problem at low cost.

Utility model content

The utility model is a lighting control device that can confuse thieves. The purpose is to provide a control device that is easy to use, low-cost, and can automatically switch on and off the console lamp or other lamps at night. It also controls the lights to be turned off, simulating the situation where someone is active at home, and is used to confuse thieves who observe outside the house and make them give up their attempts to enter the room to commit crimes, reducing the chance of being stolen. The device is composed of a single-chip microcomputer control system, including a regulated power supply, a photoelectric sensor, a normally open button switch, a single-chip microcomputer, a power output gate, a relay, an output socket, and a light-emitting diode connection. The output terminal of the photoelectric sensor is connected to the input port of the single-chip computer. The push button switch is connected to the input port of the single chip microcomputer, the other end of the push button switch is grounded, the output port of the single chip microcomputer is connected to the power output gate, the power output gate is connected to the relay, and the output port of the single chip microcomputer is also connected to a light emitting diode.

The output of the photoelectric sensor is transmitted to the input port of the single-chip microcomputer, and the timer in the single-chip microcomputer is started. After a period of delay, the output port is controlled to change state, and the power output gate is used to push the relay to pull in, so that the AC 220V output socket is connected. The lamp above it will light up, and after a period of delay, control the output port to change state, turn off the first lamp; after a period of delay, control the second output port to change state, light up the second lamp , and after a period of delay, control the output port to change state and turn off the second lamp; by controlling the state of the output port, the two lamps are turned on or off alternately, simulating the situation of someone using the lamp at home, so as to confuse the Watch for burglars outside the house.

The input port of the microcontroller is also connected to a normally open button switch, and the other end of the switch is grounded. When the switch is pressed, the computer program will record the number of times the switch is pressed, and the result will affect the delay time value and the two The fraction of time the light is on.

The photoelectric sensor is composed of a photodiode, an amplifier, and a voltage comparator, and the output of the voltage comparator is connected to the input port of the microcontroller.

The relay works by driving the gate with power connected to the output port of the microcontroller.

The upper end of the relay is directly connected to the input end of the three-terminal regulator.

The working contact of the relay and the output socket connected to it are in parallel with the power transformer, and are connected to the circuit through a power switch and a fuse.

The output port of the single-chip microcomputer is also connected with a light-emitting diode, which lights up when all lamps are in the off state, to indicate that it is in the delay process.

Beneficial effect

The utility model is composed of simple circuit connections, and its effect can simulate the illusion of people's activities in the home, confuses and deters thieves from entering, and effectively improves the safety probability. For people who are unwilling to laboriously install other alarm devices and have safety requirements, it is convenient and effective to use the utility model as a preventive measure.

Description of drawings

Fig. 1 is a schematic circuit diagram of the utility model.

Fig. 2 is the main program flowchart of the utility model.

Detailed ways

The functional prototype of the utility model has been completed, and with reference to the accompanying drawings, the implementation content of the technical solution of the utility model will be described in detail below:

Referring to Figure 1, the single-chip microcomputer system is powered by a power supply. The power supply is composed of a power transformer, a rectifier, and a voltage regulator. The relay is directly connected to the output of the rectifier and the input of the voltage regulator to increase the operating voltage of the relay. Both the photoelectric sensor and the microcontroller are powered by voltage regulators. The single-chip microcomputer can use any type of chip, and what is used in this embodiment is AT89C2051. An operational amplifier and a voltage comparator are used in the photoelectric sensor, and any type of chip can also be used. In this embodiment, two units in the LM324 general operational amplifier are used.

The output sockets are used to connect external lamps, and whether they are turned on or not is controlled by whether the working contacts of the relay are closed, and the relay is controlled by the state of the output terminal of the single-chip microcomputer. In this embodiment, the power gate chip driving the relay is MC1413.

The output socket and the working contact of the relay are connected in parallel on the primary coil of the transformer, and both are connected to the 220V AC power supply through a fuse and a power switch.

According to the circuit connection of Fig. 1, can implement the hardware function of the present utility model smoothly.

Referring to Fig. 2, the main program is a judgment and delay program. When changing from daytime to night, the output of the photoelectric sensor causes the state of the input port of the single-chip microcomputer to change, and this change determines the start of the delay. After the lamp is turned on, the specific delay time to turn off depends on the number of times the normally open switch button is set, which can be determined by referring to the living habits of people in different regions. For example, the average person's evening activity time does not exceed about 10 o'clock at night, and the room where the lamp is used can be changed every hour or so. After the lights are completely turned off, there must be a longer delay to ensure that the sky is already bright after the delay ends. For example, it can be delayed until middle age, otherwise the delay is too short and the sky is still not bright after the delay ends. , the program will mistakenly think that it was just dark, and enter the program section of turning on the lights again, thereby wasting energy. This delay is more suitable for about 12 hours.

Claims (2)

1. one kind can be confused burglar's Light Control Unit, form by single-chip computer control system, it is characterized in that: this device comprises stabilized voltage power supply, photoelectric sensor, normally open push button switch, single-chip microcomputer, relay, accessory power outlet, light-emitting diode connects to form, the output of photoelectric sensor is connected to input of single chip, normally open push button switch is connected to input of single chip, the other end ground connection of push-button switch, single machine output end connects the power out gate, single machine output end also connects a light-emitting diode, and the power out gate connects relay.

2. the Light Control Unit that can confuse the burglar according to claim 1 is characterized in that: photoelectric sensor is connected to form by photodiode, amplifier, voltage comparator, and the output of voltage comparator connects input of single chip.

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