CN206650903U - lamp control management system - Google Patents

Abstract

The utility model provides a light control management system, which includes a host computer and an integrated circuit module. The host computer communicates with the integrated circuit module through the RS‑485 serial bus. Resistor peripheral circuit, pyroelectric infrared detection circuit, relay and buzzer; among them, the photosensitive resistor peripheral circuit includes photosensitive resistor, voltage comparator, first resistor and second resistor; pyroelectric infrared detection circuit includes pyroelectric infrared Sensor, pyroelectric infrared processing chip, third resistor, fourth resistor, fifth resistor, sixth resistor, seventh resistor, eighth resistor, ninth resistor, tenth resistor, eleventh resistor, first capacitor, The second capacitor, the third capacitor, the fourth capacitor, the fifth capacitor, the sixth capacitor and the seventh capacitor. The utility model can automatically extinguish the dormitory lights of the student dormitories, effectively solving the problem of waste of power resources in the dormitories of college students.

Description

Light Control Management System

technical field

The utility model relates to the technical field of light control, in particular to a light control management system.

Background technique

With the rapid development of economy and society, my country's higher education has entered the stage of popularization, and the increasing number of college students has brought unprecedented challenges to the management of universities. In terms of light control management for college students’ dormitories, the existing technology cannot effectively ensure that the lights can be turned off on time in the dormitory of college students at night, nor can they be turned off in time when there is no one in the dormitory. Both of these situations will cause waste of power resources.

Therefore, how to ensure that the dormitory of college students can turn off the lights on time at night, and turn off the lights in time when there is no one in the dormitory is an urgent problem to be solved in the current logistics management of colleges and universities.

Utility model content

In view of the above problems, the purpose of this utility model is to provide a light control management system to solve the existing problems that the dormitories of college students cannot turn off the lights on time at night, and cannot turn off the lights in time when there is no one in the dormitory.

The light control management system provided by the utility model includes a host computer and an integrated circuit module, the host computer communicates with the integrated circuit module through the RS-485 serial bus, and the integrated circuit module includes a power supply, a single-chip microcomputer, and photosensitive resistors connected to the single-chip microcomputer respectively Peripheral circuit, pyroelectric infrared detection circuit, relay and buzzer; among them, the peripheral circuit of photoresistor includes photoresistor, voltage comparator, first resistor and second resistor, and the positive phase input terminal of voltage comparator is connected with photoresistor respectively One end of the first resistor is connected to one end of the first resistor, the other end of the photoresistor is connected to the negative pole of the power supply, the other end of the first resistor is connected to the positive pole of the power supply, the inverting input terminal of the voltage comparator is connected to the reference voltage, and the output of the voltage comparator The terminal is connected to the P1.2 pin of the single-chip microcomputer, and connected in series with the second resistor to the positive pole of the power supply, the positive working power supply terminal of the voltage comparator is connected to the positive pole of the power supply, and the negative working power supply terminal of the voltage comparator is connected to the negative pole of the power supply; The pyroelectric infrared detection circuit includes a pyroelectric infrared sensor, a pyroelectric infrared processing chip, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, and a tenth resistor. resistor, eleventh resistor, first capacitor, second capacitor, third capacitor, fourth capacitor, fifth capacitor, sixth capacitor and seventh capacitor; wherein, pin 1 of the pyroelectric infrared processing chip is connected to the power supply Positive connection; pin 2 of the pyroelectric infrared processing chip is connected to one end of the second capacitor, the other end of the second capacitor is connected to one end of the fifth resistor, the other end of the fifth resistor is connected to one end of the sixth resistor, and the other end of the second capacitor is connected to one end of the sixth resistor. The other end of the six resistors is connected to pin 10 of the pyroelectric infrared processing chip, and the third capacitor is connected in parallel to both ends of the sixth resistor; pin 3 of the pyroelectric infrared processing chip is connected to the P1.0 pin of the microcontroller; Pin 4 of the pyroelectric infrared processing chip is connected to one end of the seventh resistor, the other end of the seventh resistor is connected to the end of the second capacitor far away from the fifth resistor, the fourth capacitor is connected in parallel to both ends of the seventh resistor, and the ninth One end of the resistor is connected to one end of the fourth capacitor close to the pin 4 of the pyroelectric infrared processing chip, the other end of the ninth resistor is connected to one end of the fifth capacitor, and the other end of the fifth capacitor is connected to the negative pole of the power supply; The 5th pin of the electric infrared processing chip is connected to the eleventh resistor, and the other end of the eleventh resistor is respectively connected to the 7th pin of the pyroelectric infrared processing chip and one end of the sixth capacitor, and the other end of the sixth capacitor is connected to the power supply The negative pole connection of the pyroelectric infrared processing chip is connected with the signal output end of the pyroelectric infrared sensor, one end of the third resistor, and one end of the first capacitor respectively, and the other end of the third resistor is connected with the first capacitor. The other ends are respectively connected to the negative pole of the power supply; the 8 pins of the pyroelectric infrared processing chip are respectively connected to one end of the fifth resistor and one end of the sixth resistor; the 9 pins of the pyroelectric infrared processing chip are respectively connected to the tenth resistor One end, one end of the seventh capacitor is connected, the other end of the seventh capacitor is connected to the negative pole of the power supply, the other end of the tenth resistor is connected to the 11 pin of the pyroelectric infrared processing chip; the 12 pin of the pyroelectric infrared processing chip and 15 pins are respectively connected to the positive pole of the power supply; pyroelectric The 13 pins of the infrared processing chip are connected to the negative pole of the power supply; the 14 pins of the pyroelectric infrared processing chip are connected to one end of the fourth resistor, and the other end of the fourth resistor is connected to the negative pole of the power supply; The 16-pin is connected to one end of the eighth resistor, and the other end of the eighth resistor is connected to the positive pole of the power supply; the power supply end of the pyroelectric infrared sensor is connected to the positive pole of the power supply, and the ground terminal of the pyroelectric infrared sensor is connected to the negative pole of the power supply Connection; the switch pin of the buzzer is connected to the P1.7 pin of the single-chip microcomputer; the pin of the relay is connected to the P1.6 pin of the single-chip microcomputer; the Gnd pin of the single-chip microcomputer is connected to the negative pole of the power supply; the Vcc pin of the single-chip microcomputer is connected to Positive connection for power supply.

In addition, the preferred structure is: the integrated circuit module also includes a switching light voting circuit, and the switching light voting circuit includes a nixie tube, a first switch, a second switch, a third switch, a fourth switch, a fifth switch, and a sixth switch , the eighth capacitor, the ninth capacitor, and a crystal oscillator; wherein, the P0.0 pin of the single-chip microcomputer is connected to one end of the first switch, and the other end of the first switch is connected to the negative pole of the power supply; the P0.1 pin of the single-chip microcomputer is connected to the negative pole of the power supply One end of the second switch is connected, and the other end of the second switch is connected to the negative pole of the power supply; the P0.2 pin of the microcontroller is connected to one end of the third switch, and the other end of the third switch is connected to the negative pole of the power supply; the P0. The pin 3 is connected to one end of the fourth switch, the other end of the fourth switch is connected to the negative pole of the power supply; the P0.4 pin of the microcontroller is connected to one end of the fifth switch, and the other end of the fifth switch is connected to the negative pole of the power supply; The P0.5 pin of the single-chip microcomputer is connected to one end of the sixth switch, and the other end of the sixth switch is connected to the negative pole of the power supply; the P2.0 pin of the single-chip microcomputer is connected to the a pin of the digital tube; the P2.1 pin of the single-chip microcomputer Connect with the b pin of the digital tube; connect the P2.2 pin of the single chip microcomputer with the c pin of the digital tube; connect the P2.3 pin of the single chip microcomputer with the d pin of the digital tube; connect the P2.4 pin of the single chip microcomputer with the digital tube The e pin of the tube is connected; the P2.5 pin of the microcontroller is connected with the f pin of the digital tube; the P2.6 pin of the single chip is connected with the g pin of the digital tube; the P2.7 pin of the single chip is connected with the digital tube The dp pin is connected; the XTAL2 pin of the single-chip microcomputer is respectively connected to one end of the crystal oscillator and one end of the eighth capacitor, and the other end of the eighth capacitor is connected to the negative pole of the power supply; the XTAL1 pin of the single-chip microcomputer is respectively connected to the other end of the crystal oscillator 1. One end of the ninth capacitor is connected, and the other end of the ninth capacitor is connected to the negative pole of the power supply.

In addition, the preferred structure is: the RS-485 serial bus is connected to the UART serial port of the microcontroller through a conversion circuit, and the conversion circuit includes a MAX485 converter, an RS485 interface, a tenth capacitor and a twelfth resistor; wherein, the VCC lead of the MAX485 converter The pins are respectively connected to the positive pole of the power supply and one end of the tenth capacitor; the A pin of the MAX485 converter is connected to the 1 pin of the RS485 interface; the B pin of the MAX485 converter is connected to the 2 pin of the RS485 interface; the twelfth resistor Connect in parallel between the A pin and the B pin of the MAX485 converter; the GND pin of the MAX485 converter is respectively connected to the other end of the tenth capacitor and the negative pole of the power supply; the RO pin of the MAX485 converter is connected to the P3.0 of the microcontroller Pin Connections; MAX485 Converter's After the pin is connected to the DE pin, it is connected to the P1.1 pin of the microcontroller; the DI pin of the MAX485 converter is connected to the P3.1 pin of the microcontroller.

The light control management system provided by the utility model can achieve the following technical effects:

Use the pyroelectric infrared detection circuit to detect whether there is anyone in the dormitory. When no one is detected in the dormitory, turn off the dormitory light through the single-chip microcomputer control relay, and use the photoresistor peripheral circuit to detect whether the dormitory light is turned off when the light is turned off. If it is not turned off, pass The single-chip microcomputer turns on the buzzer, and the internal timer of the single-chip microcomputer starts counting. When the timer reaches the timing time, the dormitory lights are not turned off, and the buzzer is turned off through the single-chip microcomputer and the relay is controlled to force the lights to be turned off, thereby effectively solving the problem of power resources in the dormitories of college students. waste problem.

Description of drawings

Fig. 1 is a logical structural diagram of a light control management system according to an embodiment of the present invention;

Fig. 2 is the circuit schematic diagram of the conversion circuit according to the utility model embodiment;

Fig. 3 is a schematic circuit diagram of a switching lamp voting circuit according to an embodiment of the present invention;

4 is a schematic circuit diagram of a pyroelectric infrared detection circuit according to an embodiment of the present invention;

5 is a schematic circuit diagram of a photoresistor peripheral circuit according to an embodiment of the present invention;

Fig. 6 is a control flow chart of the light control management system according to the embodiment of the present utility model.

The reference signs include: upper computer 1, integrated circuit module 2, single-chip microcomputer 21, photoresistor peripheral circuit 22, pyroelectric infrared detection circuit 23, switch light voting circuit 24, relay 25, buzzer 26, photoresistor RL, voltage comparator A, pyroelectric infrared sensor PIR, pyroelectric infrared processing chip CHIP, digital tube LED, crystal oscillator X, MAX485 converter U, RS485 interface J, the first resistor to the twelfth resistor R1- R12, the first capacitor to the tenth capacitor C1-C10, the first switch to the sixth switch S1-S6.

detailed description

Specific embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

To illustrate in detail the light control management system provided by the present invention, FIG. 1 shows the logical structure of the light control management system according to an embodiment of the present invention.

As shown in Figure 1, the light control management system provided by the utility model includes: a host computer 1 and an integrated circuit module 2, the host computer 1 communicates with the integrated circuit module 2 through the RS-485 serial bus, and the integrated circuit module 2 includes: Power supply, single-chip microcomputer 21, and photoresistor peripheral circuit 22, pyroelectric infrared detection circuit 23, switch light voting circuit 24, relay 25 and buzzer 26 that are connected with single-chip microcomputer 21 respectively; Integrated circuit module 2 is at least one, according to Depending on the number of bedrooms, an integrated circuit module 2 is installed in each bedroom, and all integrated circuit modules 2 communicate with the host computer 1 through the RS-485 serial bus. The RS-485 serial bus communicates with the host computer 1. Since the RS-485 serial bus cannot be directly connected with the UART serial port of the single-chip microcomputer 21, the RS-485 serial bus is connected with the UART serial port of the single-chip microcomputer 21 through a conversion circuit. Exactly the same asynchronous serial communication protocol. The single-chip microcomputer 21 can respectively process the signal detected by the photoresistor peripheral circuit 22, the signal detected by the pyroelectric infrared detection circuit 23, the signal collected by the switch light voting circuit 24 and the signal sent by the upper computer 1, and then generate Control the level signal of bedroom lights. The photoresistor peripheral circuit 22 is used to detect the light brightness in the dormitory to judge whether to turn off the dormitory light according to the prescribed time; the pyroelectric infrared detection circuit 23 is used to detect whether there are people in the dormitory to judge whether the dormitory light needs to be turned off; Lamp voting circuit 24 is used for collecting voting signal, to judge whether need to turn off bedroom light. The conversion circuit, the photoresistor peripheral circuit 22 , the pyroelectric infrared detection circuit 23 , and the switching lamp voting circuit 24 will be described respectively below.

1. Conversion circuit

Fig. 2 shows the circuit principle of the conversion circuit according to the embodiment of the present invention.

As shown in Figure 2, the conversion circuit includes: MAX485 converter U, RS485 interface J, tenth capacitor C10 and twelfth resistor R12; wherein, the VCC pin of MAX485 converter U is connected to the positive pole of the power supply and the tenth capacitor C10 respectively Connect one end of MAX485 converter U to pin 1 of RS485 interface J; connect pin B of MAX485 converter U to pin 2 of RS485 interface J; the twelfth resistor R12 is connected in parallel to MAX485 converter Between pin A and pin B of U; the GND pin of MAX485 converter U is connected to the other end of the tenth capacitor C10 and the negative pole of the power supply; the RO pin of MAX485 converter U is connected to P3.0 of microcontroller 21 Pin connection; MAX485 converter U's The pin is connected with the P1.1 pin of the single-chip microcomputer 21 after being connected with the DE pin; the DI pin of the MAX485 converter U is connected with the P3.1 pin of the single-chip microcomputer 21 .

Wherein, the VCC pin and the GND pin are power supply pins; the A pin and the B pin are two pins of A and B in RS485 communication; the RO pin and the DI pin are respectively connected to the P3.0 (RXD) pin of the microcontroller 21 On the pin and P3.1 (TXD) pin, directly use the UART serial port of the single-chip microcomputer 21 to receive and send data; pin and DE pin are direction pins, pin is low to enable the receiver, DE pin is high to enable the output driver, put pin and DE pin together, when not sending data, keep Pin and DE pin are low level, so that the MAX485 converter U is in the receiving state, and when sending data, put Pin and DE pin set high level to send data, after the data is sent, set pin and the DE pin are set low. The twelfth resistor R12 connected in parallel between the A and B pins of the MAX485 converter can improve the anti-interference ability of RS-485, and the resistance value of the twelfth resistor R12 can be any value from 100 ohms to 1000 ohms .

2. Switch light voting circuit

There is often a phenomenon of "difficult to adjust" when switching lights in the dormitory. For this reason, a switching light voting circuit for switching lights in the dormitory is designed, and a maximum of 6 people can participate in voting as an example.

Fig. 3 shows the circuit principle of the switch light voting circuit according to the embodiment of the present invention.

As shown in Figure 3, the switch light voting circuit includes: digital tube LED, first switch S1, second switch S2, third switch S3, fourth switch S4, fifth switch S5, sixth switch S6, eighth capacitor C8, the ninth capacitor C9, crystal oscillator X; wherein, the P0.0 pin of the single-chip microcomputer 21 is connected with one end of the first switch S1, and the other end of the first switch S1 is connected with the negative pole of the power supply; P0.1 of the single-chip microcomputer 21 The pin is connected to one end of the second switch S2, and the other end of the second switch S2 is connected to the negative pole of the power supply; the P0.2 pin of the microcontroller 21 is connected to one end of the third switch S3, and the other end of the third switch S3 is connected to the power supply The P0.3 pin of the single-chip microcomputer 21 is connected with one end of the fourth switch S4, and the other end of the fourth switch S4 is connected with the negative pole of the power supply; the P0.4 pin of the single-chip microcomputer 21 is connected with one end of the fifth switch S5 , the other end of the fifth switch S5 is connected to the negative pole of the power supply; the P0.5 pin of the single-chip microcomputer 21 is connected to one end of the sixth switch S6, and the other end of the sixth switch S6 is connected to the negative pole of the power supply; P2.0 of the single-chip microcomputer 21 The pin is connected to the pin a of the digital tube LED; the P2.1 pin of the single-chip microcomputer 21 is connected to the b pin of the digital tube LED; the P2.2 pin of the single-chip microcomputer 21 is connected to the c pin of the digital tube LED; the single-chip microcomputer 21 The P2.3 pin of the single-chip microcomputer 21 is connected with the d pin of the digital tube LED; the P2.4 pin of the single-chip microcomputer 21 is connected with the e pin of the digital tube LED; the P2.5 pin of the single-chip microcomputer 21 is connected with the f pin of the digital tube LED Connection; the P2.6 pin of the single-chip microcomputer 21 is connected with the g pin of the digital tube LED; the P2.7 pin of the single-chip microcomputer 21 is connected with the dp pin of the digital tube LED; the XTAL2 pin of the single-chip microcomputer 21 is respectively connected with the crystal oscillator X One end of the eighth capacitor C8 is connected to one end of the eighth capacitor C8, and the other end of the eighth capacitor C8 is connected to the negative pole of the power supply; the XTAL1 pin of the single-chip microcomputer 21 is respectively connected to the other end of the crystal oscillator X and one end of the ninth capacitor C9, and the ninth capacitor C9 is connected to the other end of the capacitor C9. The other end of the capacitor C9 is connected to the negative pole of the power supply; the Gnd pin of the single-chip microcomputer 21 is connected to the negative pole of the power supply; the Vcc pin of the single-chip microcomputer 21 is connected to the positive pole of the power supply.

The crystal oscillator X, the eighth capacitor C8 and the ninth capacitor C9 form a reset circuit.

3 in combination with FIG. 1 , the pin of the relay 25 is connected to the P1.6 pin of the single-chip microcomputer 21 , and the switch pin of the buzzer 26 is connected to the P1.7 pin of the single-chip microcomputer 21 .

When the dormitory needs to switch the light to vote, each person agrees to turn off the light and press the switch according to his own wishes, and does not press the switch if he does not agree to turn off the light. After the voting is over, the switch generates a corresponding level signal, which is detected by the microcontroller After the low-level signal generated by the switch is processed, the digital tube LED displays the total number of people who voted and agreed to turn off the lights. When the number displayed by the nixie tube LED was greater than or equal to 1/2 of the total number of people participating in the voting in the dormitory, the dormitory light was turned off by the single-chip microcomputer 21 control relay 25, otherwise the dormitory light was not turned off.

3. Pyroelectric infrared detection circuit

Students often forget to turn off the lights when they leave the dormitory. In order to solve the problem of "eternal light" in the dormitory, a pyroelectric infrared detection circuit is designed to detect whether there is anyone in the dormitory.

Fig. 4 shows the circuit principle of the pyroelectric infrared detection circuit according to the embodiment of the present invention.

As shown in Figure 4, the pyroelectric infrared detection circuit includes: the pyroelectric infrared detection circuit 23 includes a pyroelectric infrared sensor PIR, a pyroelectric infrared processing chip CHIP, a third resistor R3, a fourth resistor R4, a fifth resistor R5, sixth resistor R6, seventh resistor R7, eighth resistor R8, ninth resistor R9, tenth resistor R10, eleventh resistor R11, first capacitor C1, second capacitor C2, third capacitor C3, fourth Capacitor C4, fifth capacitor C5, sixth capacitor C6 and seventh capacitor C7; wherein, pin 1 of the pyroelectric infrared processing chip CHIP is connected to the positive pole of the power supply; pin 2 of the pyroelectric infrared processing chip CHIP is connected to the first One end of the second capacitor C2 is connected, the other end of the second capacitor C2 is connected to one end of the fifth resistor R5, the other end of the fifth resistor R5 is connected to one end of the sixth resistor R6, and the other end of the sixth resistor R6 is connected to the pyroelectric The 10 pins of the infrared processing chip CHIP are connected, and the third capacitor C3 is connected in parallel with both ends of the sixth resistor R6; the 3 pins of the pyroelectric infrared processing chip CHIP are connected with the P1.0 pin of the microcontroller; the pyroelectric infrared processing chip Pin 4 of the chip CHIP is connected to one end of the seventh resistor R7, the other end of the seventh resistor R7 is connected to an end of the second capacitor C2 away from the fifth resistor R5, and the fourth capacitor C4 is connected in parallel to both ends of the seventh resistor R7, One end of the ninth resistor R9 is connected to one end of the fourth capacitor C4 close to pin 4 of the pyroelectric infrared processing chip CHIP, the other end of the ninth resistor R9 is connected to one end of the fifth capacitor C5, and the other end of the fifth capacitor C5 Connect to the negative pole of the power supply; the 5th pin of the pyroelectric infrared processing chip CHIP is connected to the eleventh resistor R11, and the other end of the eleventh resistor R11 is respectively connected to the 7th pin of the pyroelectric infrared processing chip CHIP and the sixth capacitor One end of C6 is connected, and the other end of the sixth capacitor C6 is connected to the negative pole of the power supply; pin 6 of the pyroelectric infrared processing chip CHIP is respectively connected to the signal output end of the pyroelectric infrared sensor PIR, one end of the third resistor R3, and the third resistor R3. One end of a capacitor C1 is connected, the other end of the third resistor R3 and the other end of the first capacitor C1 are respectively connected to the negative pole of the power supply; the 8 pins of the pyroelectric infrared processing chip CHIP are respectively connected to one end of the fifth resistor R5, the second One end of the six resistors R6 is connected; 9 pins of the pyroelectric infrared processing chip CHIP are respectively connected to one end of the tenth resistor R10 and one end of the seventh capacitor C7, and the other end of the seventh capacitor C7 is connected to the negative pole of the power supply. The other end of the resistor R10 is connected to pin 11 of the pyroelectric infrared processing chip CHIP; pins 12 and 15 of the pyroelectric infrared processing chip CHIP are respectively connected to the positive pole of the power supply; 13 pins of the pyroelectric infrared processing chip CHIP The pin is connected to the negative pole of the power supply; the 14 pin of the pyroelectric infrared processing chip CHIP is connected to one end of the fourth resistor R4, and the other end of the fourth resistor R4 is connected to the negative pole of the power supply; the 16 pin of the pyroelectric infrared processing chip CHIP is connected to the negative pole of the power supply. The pin is connected to one end of the eighth resistor R8, and the other end of the eighth resistor R8 is connected to the power supply Positive connection; the power supply terminal of the pyroelectric infrared sensor PIR is connected to the positive pole of the power supply, and the ground terminal of the pyroelectric infrared sensor PIR is connected to the negative pole of the power supply.

Figure 4 is combined with Figure 1. The pyroelectric infrared processing chip CHIP works in the repeatable trigger mode. When the pyroelectric infrared sensor PIR detects someone in the dormitory, the 3 pin of the pyroelectric infrared processing chip CHIP keeps high. state, when the pyroelectric infrared sensor PIR detects that there is no one in the dormitory, the 3 pin of the pyroelectric infrared processing chip CHIP becomes low level, triggering the timer inside the microcontroller to start counting, if within the preset time, 3 pins of the pyroelectric infrared processing chip CHIP still have no level jump, and then the single-chip microcomputer 21 turns off the bedroom light by controlling the relay 25 .

4. Peripheral circuit of photoresistor

FIG. 5 shows the circuit principle of the peripheral circuit of the photoresistor according to the embodiment of the present invention.

As shown in Figure 5, the peripheral circuit of the photoresistor includes: a photoresistor RL, a voltage comparator A, a first resistor R1 and a second resistor R2. One end of the resistor R1 is connected, the other end of the photosensitive resistor RL is connected to the negative pole of the power supply, the other end of the first resistor R1 is connected to the positive pole of the power supply, the inverting input terminal of the voltage comparator A is connected to the reference voltage, and the output of the voltage comparator A The terminal is connected to the P1.2 pin of the single-chip microcomputer 21, and connected in series with the second resistor R2 to the positive pole of the power supply, the positive working power supply terminal of the voltage comparator A is connected to the positive pole of the power supply, and the negative working power supply terminal of the voltage comparator A is connected to the power supply the negative connection.

Fig. 5 is combined with Fig. 1, after the host computer 1 is turned on, it can monitor the level state of the P1.2 pin of the single-chip microcomputer 21 in the integrated circuit module 2 in each dormitory in real time, analyze the light-off situation of each dormitory, when the prescribed light-off time is reached 2 pin of the single-chip microcomputer 21 is in a high level state, triggering the timer inside the single-chip microcomputer 21 to start counting, and the single-chip microcomputer 21 turns on the buzzer 26 simultaneously, if the bedroom light remains on after the predetermined time On, the single-chip microcomputer 21 closes the buzzer 26, and controls the relay 25 to forcibly turn off the light.

The above content has described in detail the logical structure of the light control management system provided by the present invention. The control flow of the light control management system will be described below.

Fig. 6 shows the control flow of the light control management system according to the embodiment of the present invention.

As shown in Figure 6, the control process of the light control management system is:

First, detect whether there is anyone in the dormitory through the pyroelectric infrared detection circuit. If there is no one in the dormitory, the timer inside the single-chip microcomputer starts timing. If there is no one in the dormitory within the preset time, the single-chip microcomputer controls the relay to turn off the dormitory light; If there are people inside, it is judged whether it is necessary to turn off the light through voting. If necessary, it is judged whether it is necessary to turn off the light through the switching light voting circuit (taking six people as an example). The dormitory light, otherwise, do not turn off the dormitory light; when it is judged that it is not necessary to turn off the light by voting or vote not to turn off the light, it is judged whether it is the specified time to turn off the light, if it is the specified time to turn off the light, the light in the dormitory is detected by the peripheral circuit of the photoresistor Brightness, if the brightness of the light in the dormitory is less than the preset value, it is judged that the dormitory light is turned off on time; if the brightness of the light in the dormitory is greater than or equal to the preset value, it is judged that the dormitory light is not turned off on time, at this time, the timer inside the microcontroller starts counting At the same time, the MCU turns on the buzzer to remind students to turn off the dormitory lights. After a predetermined time, the peripheral circuit of the photoresistor detects the light brightness in the dormitory again. If the light brightness in the dormitory is still greater than or equal to the preset value, the dormitory light is judged Still not closed, at this time, the single-chip microcomputer 21 closes the buzzer 26, and controls the relay 25 to forcibly turn off the light simultaneously.

The light control management system according to the present invention has been described by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various improvements can be made to the light control management system proposed in the above-mentioned utility model without departing from the content of the utility model. Therefore, the protection scope of the present utility model should be determined by the contents of the appended claims.

Claims (3)

1. A lamp control management system comprises an upper computer and an integrated circuit module, wherein the upper computer is communicated with the integrated circuit module through an RS-485 serial bus; the integrated circuit module comprises a power supply, a singlechip, and a photosensitive resistor peripheral circuit, a pyroelectric infrared detection circuit, a relay and a buzzer which are respectively connected with the singlechip; wherein,

the peripheral circuit of the photoresistor comprises a photoresistor, a voltage comparator, a first resistor and a second resistor, wherein a positive phase input end of the voltage comparator is respectively connected with one end of the photoresistor and one end of the first resistor, the other end of the photoresistor is connected with a negative electrode of the power supply, the other end of the first resistor is connected with a positive electrode of the power supply, an inverted phase input end of the voltage comparator is connected with a reference voltage, an output end of the voltage comparator is connected with a P1.2 pin of the single chip microcomputer and is connected with the second resistor in series to the positive electrode of the power supply, a positive working power supply end of the voltage comparator is connected with the positive electrode of the power supply, and a negative working power supply end of the voltage comparator is connected with the negative electrode of the power supply;

the pyroelectric infrared detection circuit comprises a pyroelectric infrared sensor, a pyroelectric infrared processing chip, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor and a seventh capacitor; the pin 1 of the pyroelectric infrared processing chip is connected with the anode of the power supply; the pin 2 of the pyroelectric infrared processing chip is connected with one end of the second capacitor, the other end of the second capacitor is connected with one end of the fifth resistor, the other end of the fifth resistor is connected with one end of the sixth resistor, the other end of the sixth resistor is connected with the pin 10 of the pyroelectric infrared processing chip, and the third capacitor is connected in parallel with the two ends of the sixth resistor; the pin 3 of the pyroelectric infrared processing chip is connected with the pin P1.0 of the single chip microcomputer; the 4-pin of the pyroelectric infrared processing chip is connected with one end of the seventh resistor, the other end of the seventh resistor is connected with one end, far away from the fifth resistor, of the second capacitor, the fourth capacitor is connected in parallel with the two ends of the seventh resistor, one end of the ninth resistor is connected with one end, close to the 4-pin of the pyroelectric infrared processing chip, of the fourth capacitor, the other end of the ninth resistor is connected with one end of the fifth capacitor, and the other end of the fifth capacitor is connected with the negative electrode of the power supply; a pin 5 of the pyroelectric infrared processing chip is connected with the eleventh resistor, the other end of the eleventh resistor is respectively connected with a pin 7 of the pyroelectric infrared processing chip and one end of the sixth capacitor, and the other end of the sixth capacitor is connected with the negative electrode of the power supply; a pin 6 of the pyroelectric infrared processing chip is respectively connected with a signal output end of the pyroelectric infrared sensor, one end of the third resistor and one end of the first capacitor, and the other end of the third resistor and the other end of the first capacitor are respectively connected with a negative electrode of the power supply; 8 pins of the pyroelectric infrared processing chip are respectively connected with one end of the fifth resistor and one end of the sixth resistor; a pin 9 of the pyroelectric infrared processing chip is respectively connected with one end of the tenth resistor and one end of the seventh capacitor, the other end of the seventh capacitor is connected with the negative electrode of the power supply, and the other end of the tenth resistor is connected with a pin 11 of the pyroelectric infrared processing chip; a pin 12 and a pin 15 of the pyroelectric infrared processing chip are respectively connected with the anode of the power supply; the pin 13 of the pyroelectric infrared processing chip is connected with the negative electrode of the power supply; a 14 pin of the pyroelectric infrared processing chip is connected with one end of the fourth resistor, and the other end of the fourth resistor is connected with the negative electrode of the power supply; a 16 pin of the pyroelectric infrared processing chip is connected with one end of the eighth resistor, and the other end of the eighth resistor is connected with the positive electrode of the power supply; the power supply end of the pyroelectric infrared sensor is connected with the positive electrode of the power supply, and the grounding end of the pyroelectric infrared sensor is connected with the negative electrode of the power supply; a switch pin of the buzzer is connected with a P1.7 pin of the singlechip; the pin of the relay is connected with the P1.6 pin of the singlechip; a Gnd pin of the single chip microcomputer is connected with a negative electrode of the power supply; and the Vcc pin of the singlechip is connected with the positive electrode of the power supply.

2. The lamp control management system of claim 1, wherein the integrated circuit module further comprises a lamp switching voting circuit, the lamp switching voting circuit comprising a nixie tube, a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, an eighth capacitor, a ninth capacitor, a crystal oscillator; wherein,

a P0.0 pin of the single chip microcomputer is connected with one end of the first switch, and the other end of the first switch is connected with the negative electrode of the power supply;

a P0.1 pin of the single chip microcomputer is connected with one end of the second switch, and the other end of the second switch is connected with the negative electrode of the power supply;

a P0.2 pin of the single chip microcomputer is connected with one end of the third switch, and the other end of the third switch is connected with the negative electrode of the power supply;

a P0.3 pin of the single chip microcomputer is connected with one end of the fourth switch, and the other end of the fourth switch is connected with the negative electrode of the power supply;

a P0.4 pin of the single chip microcomputer is connected with one end of the fifth switch, and the other end of the fifth switch is connected with the negative electrode of the power supply;

a P0.5 pin of the single chip microcomputer is connected with one end of the sixth switch, and the other end of the sixth switch is connected with the negative electrode of the power supply;

the P2.0 pin of the single chip microcomputer is connected with the pin a of the nixie tube;

a pin P2.1 of the singlechip is connected with a pin b of the nixie tube;

a pin P2.2 of the singlechip is connected with a pin c of the nixie tube;

a pin P2.3 of the singlechip is connected with a pin d of the nixie tube;

a P2.4 pin of the singlechip is connected with an e pin of the nixie tube;

a pin P2.5 of the singlechip is connected with a pin f of the nixie tube;

a pin P2.6 of the singlechip is connected with a pin g of the nixie tube;

a P2.7 pin of the singlechip is connected with a dp pin of the nixie tube;

an XTAL2 pin of the single chip microcomputer is respectively connected with one end of the crystal oscillator and one end of the eighth capacitor, and the other end of the eighth capacitor is connected with a negative electrode of the power supply;

the XTAL1 pin of the single chip microcomputer is respectively connected with the other end of the crystal oscillator and one end of the ninth capacitor, and the other end of the ninth capacitor is connected with the negative electrode of the power supply.

3. The lamp control management system of claim 1,

the RS-485 serial bus is connected with a UART serial port of the single chip microcomputer through a conversion circuit, and the conversion circuit comprises an MAX485 converter, an RS485 interface, a tenth capacitor and a twelfth resistor; wherein,

a VCC pin of the MAX485 converter is respectively connected with the anode of the power supply and one end of the tenth capacitor;

the pin A of the MAX485 converter is connected with the pin 1 of the RS485 interface;

a pin B of the MAX485 converter is connected with a pin 2 of the RS485 interface;

the twelfth resistor is connected between the pin A and the pin B of the MAX485 converter in parallel;

a GND pin of the MAX485 converter is connected with the other end of the tenth capacitor and a negative electrode of the power supply respectively;

the RO pin of the MAX485 converter is connected with the P3.0 pin of the single chip microcomputer;

of the MAX485 converterThe pin is connected with the DE pin and then connected with a P1.1 pin of the singlechip;

and a DI pin of the MAX485 converter is connected with a P3.1 pin of the singlechip.