CN203771632U - Air-conditioner automatic switch device judging whether person is indoor or not - Google Patents

Abstract

The utility model relates to an air-conditioner automatic switch device judging whether a person is indoor or not. The air-conditioner automatic switch device comprises a power module, a human body inducing module, a current detection module, a controller module and a switch control module, wherein the power module is used for supplying power for other modules; the human body inducing module is used for monitoring whether a person is indoor or not and in and out states of the person; the current detection module is used for detecting whether the current air-conditioner is in a working state or not; the controller module is used for processing information acquired by the human body inducing module and the current detection module; the switch control module is used for conducting automatic control on switching on and switching off of the air-conditioner. The air-conditioner automatic switch device is capable of judging whether a person is indoor or not in real-time, conducts automatic operation on switching on and switching off of the air-conditioner according to a current working state of the air-conditioner, is automatic, convenient, safe and reliable, and saves electrical energy greatly.

Description

An air conditioner automatic switch device for judging whether there is no one in the room

technical field

The utility model belongs to the field of automatic control and relates to an automatic air-conditioning switch controller, in particular to an air-conditioning automatic switching device for judging whether there is a person in the room or not.

Background technique

With the general improvement of the quality of life, the use of air conditioners has become quite popular. At present, in classrooms and offices of various colleges and universities, due to people's carelessness and negligence, when there is no one in the room, the air conditioner is not turned off in time and the air conditioner is still in normal working condition, which greatly causes a waste of electric energy. Therefore, it is urgently needed and crucial to develop a device that can judge whether there is anyone in the room in real time, and automatically process it in time according to the working state of the air conditioner.

Contents of the invention

In order to solve the problems of the above-mentioned technologies, the utility model provides an automatic switch device for judging the presence or absence of an air conditioner. The first is to judge whether there is no one in the room, and then judge whether it is in the working state by testing the current of the air conditioner, and finally transmit the observed signal to the control module to realize the automatic control of the opening and closing of the air conditioner.

The utility model comprises a power supply module, a human body induction module, a current detection module, a controller module and a switch control module.

The power module includes a voltage regulator chip LM7805, a reverse voltage regulator protection diode D1, a first filter capacitor C1, a second filter capacitor C2, a third filter capacitor C3, a fourth filter capacitor C4, a first divider resistor R1 and a button S1.

One end of the first voltage dividing resistor R1 is connected to a given 12V total power supply, the other end is connected to the anode of the reverse voltage stabilizing protection diode D1, the cathode of the reverse voltage stabilizing protection diode D1 is connected to one end of the button S1, and the other end of S1 is connected to the first The positive pole of a filter capacitor C1 is connected, the negative pole of the first filter capacitor C1 is connected with one end of the second filter capacitor C2, the other end of the second filter capacitor C2 is connected with the positive pole of the first filter capacitor C1, and the input end of the voltage regulator chip LM7805 , the output terminal of the voltage regulator chip LM7805 is connected to the positive pole of the third filter capacitor C3 and outputs 5V power supply, the negative pole of the third filter capacitor C3 is connected to the ground terminal of the voltage regulator chip LM7805 and one end of the fourth filter capacitor C4 to the ground , the other end of the fourth filter capacitor C4 is connected to the output end of the voltage regulator chip LM7805.

The human body sensing module includes a first human body infrared sensor, a second human body infrared sensor, a third human body infrared sensor, a second voltage dividing resistor R2, a third voltage dividing resistor R3, a fifth filter capacitor C5, a fourth voltage dividing resistor R4, and a third voltage dividing resistor R4. The fifth voltage divider resistor R5, the sixth filter capacitor C6, the sixth voltage divider resistor R6, the seventh voltage divider resistor R7, the seventh filter capacitor C7, the first human body infrared sensor, the second human body infrared sensor and the third human body infrared sensor The models of the infrared sensors are all RE200B.

One end of the second voltage dividing resistor R2 is connected to the No. 1 pin of the first human body infrared sensor, and one end of the fifth filter capacitor C5 is connected to a 5V power supply, and the other end of the second voltage dividing resistor R2 is connected to the third voltage dividing resistor R3. One end, the No. 2 pin of the first human body infrared sensor is connected to the No. 37 pin of the controller module control chip STC89C54RD+, the other end of the third voltage dividing resistor R3 and the other end of the fifth filter capacitor C5, the first human body infrared sensor Pin 3 of the sensor is connected to ground.

One end of the fourth voltage dividing resistor R4 is connected to the No. 1 pin of the second human body infrared sensor, and one end of the sixth filter capacitor C6 is connected to a 5V power supply, and the other end of the fourth voltage dividing resistor R4 is connected to the fifth voltage dividing resistor R5. One end, the No. 2 pin of the second human body infrared sensor is connected to the No. 36 pin of the controller module control chip STC89C54RD+, the other end of the fifth voltage dividing resistor R5 and the other end of the sixth filter capacitor C6, the second human body infrared sensor Pin 3 of the sensor is connected to ground.

One end of the sixth voltage dividing resistor R6 is connected to the No. 1 pin of the third human body infrared sensor, and one end of the seventh filter capacitor C7 is connected to a 5V power supply, and the other end of the fourth voltage dividing resistor R4 is connected to the fifth voltage dividing resistor R5. One end, the No. 2 pin of the third human body infrared sensor is connected to the No. 35 pin of the controller module control chip STC89C54RD+, the other end of the fifth voltage dividing resistor R5 and the other end of the sixth filter capacitor C6, the third human body infrared sensor Pin 3 of the sensor is connected to ground.

The current detection module includes a first relay Relay1 and a current limiting resistor R8.

Pin 1 of the first relay Relay1 is connected to one end of the indicator light of the air conditioner display circuit, pin 2 of the first relay Relay1 is grounded, and pin 3 of the first relay Relay1 is connected to one end of the current limiting resistor R8 , the other end of the current limiting resistor R8 is connected to the 5V power supply, the No. 4 pin of the first relay Relay1 is connected to the other end of the indicator light of the air conditioner display circuit, and the No. 5 pin of the first relay Relay1 is connected to the controller module control chip STC89C54RD+ pin 34.

The controller module includes a control chip STC89C54RD+, a ninth voltage dividing resistor R9, an eighth filter capacitor C8, a ninth filter capacitor C9, a tenth filter capacitor C10, an eleventh filter capacitor C11, and a clock crystal oscillator Y1.

The No. 4 pin of the control chip STC89C54RD+ is connected to the negative pole of the eighth filter capacitor C8 and one end of the ninth voltage divider resistor R9, the positive pole of the eighth filter capacitor C8 is connected to the 5V power supply, and the other end of the ninth voltage divider resistor R9 is grounded , the No. 14 pin of the control chip STC89C54RD+ is connected to one end of the clock crystal oscillator Y1 and one end of the ninth filter capacitor C9, and the other end of the clock crystal oscillator Y1 is connected to one end of the tenth filter capacitor C10 to the No. 15 pin of the control chip STC89C54RD+ Pin, the other end of the ninth filter capacitor C9 and the other end of the tenth filter capacitor C10 are connected to the ground, the 29th pin of the control chip STC89C54RD+ is connected to the 38th pin of the control chip STC89C54RD+, and one end of the eleventh filter capacitor C11 Connected to the 5V power supply, the other end of the eleventh filter capacitor C11 is grounded to the pin 16 of the control chip STC89C54RD+.

The switch module includes a second relay Relay2, a PNP transistor Q1, and an eleventh voltage dividing resistor R11. The No. 1 pin of the second relay Relay2 is connected to the emitter of the PNP transistor Q1, the base of the PNP transistor Q1 is connected to one end of the eleventh voltage dividing resistor R11, and the other end of the eleventh voltage dividing resistor R11 is connected to the control The No. 30 pin of the chip STC89C54RD+ is connected, the collector of the PNP transistor Q1 is grounded, the No. 2 pin of the second relay Relay2 is connected to one end of the air conditioner start button, the No. 3 pin of the second relay Relay2 is suspended, and the second relay The 4th pin of Relay2 is connected to the 5V power supply, and the 5th pin of the second relay Relay2 is connected to the other end of the start button of the air conditioner.

In the utility model, the power supply module supplies power for other modules. Three human body infrared sensors are used in the human body sensing module. The first human body infrared sensor is used to judge whether there is no one in the room, and the other two human body infrared sensors are used to judge the state of people entering and leaving. The current detection module is connected in series in the air conditioner circuit. The relay judges whether the air conditioner is working according to the status of the relay, and the controller module controls and processes the signals transmitted by the first two modules, and finally outputs to the switch module to automatically turn on and off the air conditioner. The utility model has the advantages of convenient installation and low manufacturing cost. It can automatically identify whether there is no one in the room and automatically turn on and off the air conditioner according to the current working condition, which is not only safe and reliable but also greatly saves electric energy. For some places that use more air conditioners, it has broad market prospects.

Description of drawings

Figure 1 Schematic diagram of the structure of the air-conditioning automatic switch device for judging whether there is no one in the room;

Figure 2 Schematic diagram of the power module of the air conditioner automatic switch device for judging whether there is no one in the room;

Figure 3 Schematic diagram of the human body sensing module for judging whether there is no one in the room;

Figure 4 Schematic diagram of the current detection module of the automatic switch device of the air conditioner for judging whether there is no one in the room;

Figure 5 is a schematic diagram of the controller module for judging that there is no one in the room;

Fig. 6 judges the schematic diagram of the switch control module of the automatic switchgear of the air conditioner with unoccupied people in the room;

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

The specific implementation of the utility model is shown in the accompanying drawings. What Fig. 1 shows is a schematic structural diagram of an air-conditioning automatic switch device for judging whether there is no one in the room. It is mainly composed of a power supply module, a human body induction module, a current detection module, a controller module and a switch Control module composition.

The working process of the air-conditioning automatic switch device for judging whether there is no one in the room is as follows: the power module supplies power to other modules, and the human body sensing module uses three human body infrared sensors, and the first human body infrared sensor (wide surface) is used to judge whether there is no one in the room , the last two human body infrared sensors (narrow side) are used to judge the status of people entering and leaving. If the first human body infrared sensor (narrow side) is detected first, and then the second human body infrared sensor (narrow side) is detected, it means that someone has entered , otherwise it means that someone is out; the current detection module connects a relay in series in the air conditioner circuit, and judges whether the air conditioner is working according to the state of the relay coil. If the coil is closed, it means that the air conditioner is working, otherwise it is not working; Control and process the signals transmitted by the first two modules. The built-in counter is used to store the current number of people detected in the room. If someone is detected to enter, the counter will increase by 1, and when someone goes out, the counter will decrease by 1; the switch module is in the air conditioner. A relay coil is connected in parallel at both ends of the start button. According to the signal transmitted by the controller, the relay coil acts accordingly to automatically control the opening and closing of the air conditioner.

As shown in Figure 2, the power module includes a voltage regulator chip LM7805, a reverse voltage regulator protection diode D1, a first filter capacitor C1, a second filter capacitor C2, a third filter capacitor C3, a fourth filter capacitor C4, a first voltage divider Resistor R1, button S1.

Since many processor modules work with 5V power supply, the voltage regulator chip LM2940 converts the working voltage from 12V to 5V to provide a stable 5V working voltage for the human body sensing module, current detection module, controller module and switch control module. One end of the first voltage dividing resistor R1 is connected to a given 12V total power supply, the other end is connected to the anode of the reverse voltage stabilizing protection diode D1, the cathode of the reverse voltage stabilizing protection diode D1 is connected to one end of the button S1, and the other end of S1 is connected to the first The positive pole of a filter capacitor C1 is connected, the negative pole of the first filter capacitor C1 is connected with one end of the second filter capacitor C2, the other end of the second filter capacitor C2 is connected with the positive pole of the first filter capacitor C1, and the input end of the voltage regulator chip LM7805 , the output terminal of the voltage regulator chip LM7805 is connected to the positive pole of the third filter capacitor C3, the negative pole of the third filter capacitor C3 is connected to the ground terminal of the voltage regulator chip LM7805, and one end of the fourth filter capacitor C4 is connected to the ground, and the fourth filter capacitor C3 is connected to the ground. The other end of the capacitor C4 is connected to the anode of the third filter capacitor C3 at 5V.

As shown in Figure 3, the human body sensing module includes a human body infrared sensor 1 (wide surface), a human body infrared sensor 2 (narrow surface), a human body infrared sensor 3 (narrow surface), a second voltage dividing resistor R2, and a third voltage dividing resistor R3 , fifth filter capacitor C5, fourth voltage divider resistor R4, fifth voltage divider resistor R5, sixth filter capacitor C6, sixth voltage divider resistor R6, seventh voltage divider resistor R7, seventh filter capacitor C7, human body infrared sensor Models are selected RE200B.

The utility model adopts three human body infrared sensors, the first human body infrared sensor (wide surface) is used to judge whether there is no one in the room, and the last two human body infrared sensors (narrow surface) are used to judge the state of people entering and leaving. One human body infrared sensor (narrow side), and then detects the second human body infrared sensor (narrow side), which means that someone has entered, otherwise, it means that someone has gone out. One end of the second voltage dividing resistor R2 is connected to the No. 1 pin of the human body infrared sensor 1 (wide surface), and one end of the fifth filter capacitor C5 is connected to 5V, and one end of the second voltage dividing resistor R2 is connected to the third voltage dividing resistor R3 One end of the human body infrared sensor 1 (wide surface) is connected to the No. 37 pin of the controller module control chip STC89C54RD+, the other end of the third voltage dividing resistor R3 is connected to the other end of the fifth filter capacitor C5, The No. 3 pin of the human body infrared sensor 1 (wide surface) is connected to the controller. One end of the fourth voltage dividing resistor R4 is connected to the No. 1 pin of the human body infrared sensor 2 (narrow side), and one end of the sixth filter capacitor C6 is connected to 5V, and one end of the fourth voltage dividing resistor R4 is connected to the fifth voltage dividing resistor R5 One end of human body infrared sensor 2 (narrow side) pin 2 is connected to pin 36 of the controller module control chip STC89C54RD+, the other end of the fifth voltage dividing resistor R5 is connected to the other end of the sixth filter capacitor C6, The No. 3 pins of the human body infrared sensor 2 (narrow side) are connected. One end of the sixth voltage dividing resistor R6 is connected to the No. 1 pin of the human body infrared sensor 3 (narrow side), one end of the seventh filter capacitor C7 is connected to 5V, one end of the fourth voltage dividing resistor R4 is connected to the fifth voltage dividing resistor R5 One end of the human body infrared sensor 2 (narrow side) is connected to the No. 35 pin of the controller module control chip STC89C54RD+, the other end of the fifth voltage dividing resistor R5 is connected to the other end of the sixth filter capacitor C6, The No. 3 pins of the human body infrared sensor 2 (narrow side) are connected.

As shown in FIG. 4 , the current detection module includes a first relay Relay1 and a current limiting resistor R8.

The utility model connects a relay in series in the air conditioner circuit, and judges whether the air conditioner is working according to the state of the relay coil. If the coil is closed, it means that the air conditioner is working, otherwise it is not working. Pin 1 of the first relay Relay1 is connected to one end of the indicator light of the air conditioner display circuit, pin 2 of the first relay Relay1 is grounded, and pin 3 of the first relay Relay1 is connected to one end of the current limiting resistor R8 , the other end of the current limiting resistor R8 is connected to the 5V power supply, the No. 4 pin of the first relay Relay1 is connected to the other end of the indicator light of the air conditioner display circuit, and the No. 5 pin of the first relay Relay1 is connected to the controller module control chip STC89C54RD+ pin 34.

As shown in Figure 5, the controller module includes the control chip STC89C54RD+, the ninth voltage divider resistor R9, the eighth filter capacitor C8, the ninth filter capacitor C9, the tenth filter capacitor C10, the eleventh filter capacitor C11, and the clock crystal oscillator Y1 .

The control chip STC89C54RD+ is a high-performance single-chip microcomputer with low power consumption, undecipherable, and super anti-interference. It integrates 16KB Flash, 1280B RAM, 16KB EEPROM, 3 timers/counters, watchdog and other circuits in the chip. High functional density and good price/performance ratio. The No. 4 pin of the control chip STC89C54RD+ is connected to the negative pole of the eighth filter capacitor C8 and one end of the ninth voltage dividing resistor R9, the positive pole of the eighth filter capacitor C8 is connected to 5V, and the other end of the ninth voltage dividing resistor R9 is grounded. The No. 14 pin of the control chip STC89C54RD+ is connected to one end of the clock crystal oscillator Y1 and one end of the ninth filter capacitor C9, and the other end of the clock crystal oscillator Y1 is connected to one end of the tenth filter capacitor C10 to the No. 15 pin of the control chip STC89C54RD+ , the other end of the ninth filter capacitor C9 is connected to the ground with the other end of the tenth filter capacitor C10, the 29th pin of the control chip STC89C54RD+ is connected to the 38th pin of the control chip STC89C54RD+, and one end of the eleventh filter capacitor C11 At 5V, the other end of the eleventh filter capacitor C11 is grounded to pin 16 of the control chip STC89C54RD+, pin 35 of the control chip STC89C54RD+ is connected to pin 2 of the human body infrared sensor 2 (narrow surface), and the control chip Pin 36 of STC89C54RD+ is connected to pin 2 of human body infrared sensor 1 (narrow side), and pin 37 of the control chip STC89C54RD+ is connected to pin 2 of human body infrared sensor 1 (wide side).

As shown in FIG. 6, the switch module includes a second relay Relay2, a PNP transistor Q1, and an eleventh voltage dividing resistor.

The utility model is that a relay coil is connected in parallel at both ends of the start button of the air conditioner. According to the signal transmitted by the controller, the relay coil acts correspondingly to automatically control the opening and closing of the air conditioner. The No. 1 pin of the second relay Relay2 is connected to the emitter of the PNP transistor Q1, the base of the PNP transistor Q1 is connected to one end of the eleventh voltage dividing resistor R11, and the other end of the eleventh voltage dividing resistor R11 is connected to the control The No. 30 pin of the chip STC89C54RD+ is connected, the collector of the PNP transistor Q1 is grounded, the No. 2 pin of the second relay Relay2 is connected to one end of the start button of the air conditioner, the No. 3 pin of the second relay Relay2 is suspended, and the second relay The 4th pin of Relay2 is connected to the 5V power supply, and the 5th pin of the second relay Relay2 is connected to the other end of the start button of the air conditioner.

Claims (1)

1. An air-conditioning automatic switch device for judging whether there is no one in the room, including a power supply module, a human body sensing module, a current detection module, a controller module and a switch control module; The power module includes a voltage regulator chip LM7805, a reverse voltage regulator protection diode D1, a first filter capacitor C1, a second filter capacitor C2, a third filter capacitor C3, a fourth filter capacitor C4, a first voltage divider resistor R1 and a button S1; One end of the first voltage dividing resistor R1 is connected to a given 12V total power supply, the other end is connected to the anode of the reverse voltage stabilizing protection diode D1, the cathode of the reverse voltage stabilizing protection diode D1 is connected to one end of the button S1, and the other end of S1 is connected to the first The positive pole of a filter capacitor C1 is connected, the negative pole of the first filter capacitor C1 is connected with one end of the second filter capacitor C2, the other end of the second filter capacitor C2 is connected with the positive pole of the first filter capacitor C1, and the input end of the voltage regulator chip LM7805 , the output terminal of the voltage regulator chip LM7805 is connected to the positive pole of the third filter capacitor C3 and outputs 5V power supply, the negative pole of the third filter capacitor C3 is connected to the ground terminal of the voltage regulator chip LM7805 and one end of the fourth filter capacitor C4 to the ground , the other end of the fourth filter capacitor C4 is connected to the output end of the voltage regulator chip LM7805; The human body sensing module includes a first human body infrared sensor, a second human body infrared sensor, a third human body infrared sensor, a second voltage dividing resistor R2, a third voltage dividing resistor R3, a fifth filter capacitor C5, a fourth voltage dividing resistor R4, and a third voltage dividing resistor R4. The fifth voltage divider resistor R5, the sixth filter capacitor C6, the sixth voltage divider resistor R6, the seventh voltage divider resistor R7, the seventh filter capacitor C7, the first human body infrared sensor, the second human body infrared sensor and the third human body infrared sensor The model of the infrared sensor is RE200B One end of the second voltage dividing resistor R2 is connected to the No. 1 pin of the first human body infrared sensor, and one end of the fifth filter capacitor C5 is connected to a 5V power supply, and the other end of the second voltage dividing resistor R2 is connected to the third voltage dividing resistor R3. One end, the No. 2 pin of the first human body infrared sensor is connected to the No. 37 pin of the controller module control chip STC89C54RD+, the other end of the third voltage dividing resistor R3 and the other end of the fifth filter capacitor C5, the first human body infrared sensor The 3rd pin of the sensor is connected to the ground; One end of the fourth voltage dividing resistor R4 is connected to the No. 1 pin of the second human body infrared sensor, and one end of the sixth filter capacitor C6 is connected to a 5V power supply, and the other end of the fourth voltage dividing resistor R4 is connected to the fifth voltage dividing resistor R5. One end, the No. 2 pin of the second human body infrared sensor is connected to the No. 36 pin of the controller module control chip STC89C54RD+, the other end of the fifth voltage dividing resistor R5 and the other end of the sixth filter capacitor C6, the second human body infrared sensor The 3rd pin of the sensor is connected to the ground; One end of the sixth voltage dividing resistor R6 is connected to the No. 1 pin of the third human body infrared sensor, and one end of the seventh filter capacitor C7 is connected to a 5V power supply, and the other end of the fourth voltage dividing resistor R4 is connected to the fifth voltage dividing resistor R5. One end, the No. 2 pin of the third human body infrared sensor is connected to the No. 35 pin of the controller module control chip STC89C54RD+, the other end of the fifth voltage dividing resistor R5 and the other end of the sixth filter capacitor C6, the third human body infrared sensor The 3rd pin of the sensor is connected to the ground; The current detection module includes a first relay Relay1 and a current limiting resistor R8; Pin 1 of the first relay Relay1 is connected to one end of the indicator light of the air conditioner display circuit, pin 2 of the first relay Relay1 is grounded, and pin 3 of the first relay Relay1 is connected to one end of the current limiting resistor R8 , the other end of the current limiting resistor R8 is connected to the 5V power supply, the No. 4 pin of the first relay Relay1 is connected to the other end of the indicator light of the air conditioner display circuit, and the No. 5 pin of the first relay Relay1 is connected to the controller module control chip STC89C54RD+ pin 34; The controller module includes a control chip STC89C54RD+, a ninth voltage divider resistor R9, an eighth filter capacitor C8, a ninth filter capacitor C9, a tenth filter capacitor C10, an eleventh filter capacitor C11, and a clock crystal oscillator Y1; The No. 4 pin of the control chip STC89C54RD+ is connected to the negative pole of the eighth filter capacitor C8 and one end of the ninth voltage divider resistor R9, the positive pole of the eighth filter capacitor C8 is connected to the 5V power supply, and the other end of the ninth voltage divider resistor R9 is grounded , the No. 14 pin of the control chip STC89C54RD+ is connected to one end of the clock crystal oscillator Y1 and one end of the ninth filter capacitor C9, and the other end of the clock crystal oscillator Y1 is connected to one end of the tenth filter capacitor C10 to the No. 15 pin of the control chip STC89C54RD+ Pin, the other end of the ninth filter capacitor C9 and the other end of the tenth filter capacitor C10 are connected to the ground, the 29th pin of the control chip STC89C54RD+ is connected to the 38th pin of the control chip STC89C54RD+, and one end of the eleventh filter capacitor C11 Connected to the 5V power supply, the other end of the eleventh filter capacitor C11 is grounded to the 16th pin of the control chip STC89C54RD+; The switch module includes the second relay Relay2, the PNP transistor Q1, and the eleventh voltage dividing resistor R11; the No. 1 pin of the second relay Relay2 is connected to the emitter of the PNP transistor Q1, and the base of the PNP transistor Q1 is connected to the eleventh branch resistor. One end of the piezoresistor R11 is connected, the other end of the eleventh voltage dividing resistor R11 is connected to the No. 30 pin of the control chip STC89C54RD+, the collector of the PNP transistor Q1 is grounded, and the No. 2 pin of the second relay Relay2 is connected to the air conditioner start One end of the button is connected, the No. 3 pin of the second relay Relay2 is suspended, the No. 4 pin of the second relay Relay2 is connected to the 5V power supply, and the No. 5 pin of the second relay Relay2 is connected to the other end of the air conditioner start button.