CN108777403B - Closed-loop intelligent infrared remote control socket - Google Patents

Abstract

A closed-loop intelligent infrared remote control socket, including a smart socket, the smart socket includes a power output jack, a current isolation transformer, a rectification and filtering module, a power transformer, a rectification and filtering voltage stabilization module, a working state indication module, and a main controller , a data storage module, an infrared signal transmitting module, an infrared coding learning receiving module and a network interface module form a closed-loop circuit. A smart socket designed with closed-loop control ideas; it has an infrared signal transmitting module, an infrared code learning receiving module, a current isolation transformer and a network interface module, which realizes the start/stop control of the load equipment and can also detect the load current value of the load equipment , so as to judge whether the load equipment starts and stops correctly. The invention is suitable for various occasions where it is inconvenient for personnel to operate and maintain equipment, and is especially suitable for automatic and reliable opening of electrical equipment in high-rise buildings.

Description

Closed-loop intelligent infrared remote control socket

technical field

The invention relates to the field of power sockets, in particular to a closed-loop intelligent infrared remote control socket.

Background technique

Existing large-scale electrical equipment has been equipped with infrared receivers, such as TVs, air conditioners, etc. Electrical equipment installed on high-rise buildings, such as LED large screens, will generate high temperature during operation. If the heat is not dissipated, the life of LED large screens will be shortened. The general solution is to install multiple air conditioners in the large LED screen, but the air conditioners cannot be started automatically after an unexpected power outage, and it is necessary to manually climb up to start the electrical equipment, and the risk factor is very high.

At present, known smart sockets control the power on/off of the load equipment on the socket through the cooperation of a remote controller and a wired or wireless communication interface. However, the existing smart sockets all belong to the open-loop control system. This kind of socket can only power on/off the load equipment, without the function of detecting the startup status of the load equipment, and it is impossible to judge whether the load equipment of the socket is activated.

Therefore, when the existing smart socket is used in electrical equipment on high-rise buildings, or in the field of remote control of electrical equipment, its reliability is not high, and it cannot sense and judge the start/stop of electrical equipment.

Contents of the invention

The present invention proposes a closed-loop intelligent infrared remote control socket, which adopts the closed-loop control idea to design an intelligent socket; it has an infrared signal transmitting module, an infrared code learning receiving module, a current isolation transformer and a network interface module, and realizes the start/stop of load equipment While controlling, it can also detect the load current value of the load equipment, so as to judge whether the load equipment is started and stopped correctly, and restart the load equipment as needed.

The present invention is realized through the following technical solutions:

A closed-loop intelligent infrared remote control socket, including an intelligent socket, the intelligent socket includes a power output jack, a current isolation transformer, a rectification and filtering module, a power transformer, a rectification and filtering voltage stabilization module, a working state indication module, and a main controller , a data storage module, an infrared signal transmitting module, an infrared code learning receiving module and a network interface module form a closed-loop circuit. The main controller adopts STC15W408AS processor. The data storage module adopts EEPROM memory AT24C02. The infrared code learning and receiving module adopts an infrared receiving chip with a model number of HS0038.

One end of the power output jack is connected to the live wire of the 220V mains, and the other end is connected to the current isolation transformer. The current isolation transformer is connected to the neutral line of the 220V mains. The rectification and filtering module is connected to the AD signal pin of the main controller; the current isolation transformer detects and collects the current signal of the output jack of the power supply, and the collected current signal is sent to the A/D signal pin of the main controller through the rectification and filtering module. D data acquisition port, the main controller judges the start-stop state of the load equipment on the socket by detecting the complex voltage of the current isolation transformer.

The 220V commercial power is connected to the rectification, filtering and voltage stabilizing module through a power transformer, and the rectification, filtering and voltage stabilizing module is connected to the main controller to perform voltage stabilization and filtering on the power supply voltage of the controller; the 220V commercial power is passed through The power transformer, after passing through the rectification, filtering and voltage stabilizing module, outputs a voltage of 5V, which provides a 5V power supply voltage for the entire circuit board.

The working status indicating module is bidirectionally connected with the main controller, the main controller issues working instructions to the working status indicating module, and the working status indicating module feeds back the working status of the load equipment to the main controller.

The data storage module is bidirectionally connected with the main controller for data transmission.

The network interface module is bidirectionally connected with the main controller, and sends an alarm signal to the user through the network interface after the load device has failed to start for many times.

The infrared coding learning receiving module is connected with the main controller to receive signals, the infrared coding learning receiving module is connected with the remote controller of the load device through the infrared signal, receives the infrared signal of the remote controller of the load device, and then transmits the received signal to the main controller A controller, the main controller detects and learns the infrared coded signal, and then stores the infrared coded signal into the data storage module.

The main controller is connected with the infrared signal transmitting module to send signals; the infrared signal transmitting module is connected with the signal receiving module of the load device through the infrared signal.

Further, the galvanic isolation transformer detects the current of the output jack, if it is too small, it indicates that the electrical equipment has not started normally, and the MCU resends the infrared coded signal until the electrical equipment starts normally. After multiple startups are invalid, an alarm signal is sent to the user through the network interface.

Further, the smart socket can receive and store infrared signals input by remote controllers of multiple load devices.

Further, the main controller can read the infrared coded signal of the remote controller of the corresponding load device from the EEPROM memory when the power is turned on again after a power failure, or according to the received network command, and after adjustment, it will be emitted by the infrared emitting diode to turn on the load. equipment.

(3) Beneficial effects

Compared with the prior art, a closed-loop intelligent infrared remote control socket proposed by the present invention has the following beneficial effects:

(1) A smart socket designed with closed-loop control ideas; it has an infrared signal transmitting module, an infrared code learning receiving module, a current isolation transformer and a network interface module, which realizes the start/stop control of the load equipment and can also detect the status of the load equipment The load current value is used to judge whether the load equipment is started and stopped correctly. It is of great significance to the safe and reliable use of electricity for electrical equipment.

(2) Learn the receiving module and the main controller through the infrared code, store the received infrared code information in the EEPROM, the main controller extracts the coded data from the EEPROM according to the instruction, and transmits the infrared signal through the infrared signal transmitting module to control the load device Start and stop.

(3) The data storage module adopts EEPROM memory. EEPROM memory is a memory chip that does not lose data after power failure. It communicates with the interface of the single-chip microcomputer to realize data storage.

(4) It is suitable for various occasions where it is not convenient for personnel to operate and maintain equipment, especially suitable for automatic and reliable opening of electrical equipment in high-rise buildings. It can be applied to the control of high-rise large-screen cooling air conditioners, which can solve the problem of automatic start-up of cooling air conditioners after unexpected power failures, and avoid frequent high-altitude operations for operators.

(5) It can also facilitate the intelligent control of various electrical equipment with infrared remote control, and has the function of allowing electrical equipment to perform reliable automatic opening, automatic closing and detection of current in electrical equipment.

Description of drawings

Fig. 1 is a functional block diagram of the intelligent infrared remote control socket of the present invention.

Fig. 2 is a flow chart of the working state of the infrared coding learning receiving module of the present invention.

Fig. 3 is a flow chart of the working state of infrared signal transceiving in the present invention.

Fig. 4 is a working flowchart of the infrared signal transmitting module of the present invention.

Fig. 5 is a schematic diagram of the circuit connection mode of the current isolation transformer of the present invention.

Fig. 6 is a schematic diagram of the overall circuit connection of the intelligent infrared remote control socket of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. The described embodiments are only some, not all, embodiments of the present invention. On the premise of not departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention shall fall within the protection scope of the present invention.

Example:

As shown in Figure 1: a closed-loop smart infrared remote control socket, including a smart socket, the smart socket can receive and store infrared signals input by remote controllers of multiple load devices.

The smart socket includes a power output jack, a current isolation transformer, a rectification and filtering module, a power transformer, a rectification and filtering voltage stabilization module, a working status indication module, a main controller, a data storage module, an infrared signal transmitting module, an infrared coding learning receiving module and The network interface module forms a closed-loop circuit. The main controller adopts STC15W408AS processor. The data storage module adopts EEPROM memory, and the EEPROM memory adopts AT24C02. The infrared code learning and receiving module adopts an infrared receiving chip with a model number of HS0038.

One end of the power output jack is connected to the live wire of the 220V mains, and the other end is connected to the current isolation transformer. The current isolation transformer is connected to the neutral line of the 220V mains. The rectification and filtering module is connected to the AD signal pin of the main controller; the current isolation transformer detects and collects the current signal of the output jack of the power supply, and the collected current signal is sent to the A/D signal pin of the main controller through the rectification and filtering module. D data acquisition port, the main controller judges the start-stop state of the load equipment on the socket by detecting the complex voltage of the current isolation transformer. The galvanic isolation transformer detects the current of the output jack. If it is too small, it indicates that the electrical equipment has not started normally, and the MCU resends the infrared coded signal until the electrical equipment starts normally. After multiple startups are invalid, an alarm signal is sent to the user through the network interface.

The 220V commercial power is connected to the rectification, filtering and voltage stabilizing module through a power transformer, and the rectification, filtering and voltage stabilizing module is connected to the main controller to perform voltage stabilization and filtering on the power supply voltage of the controller; the 220V commercial power is passed through The power transformer, after passing through the rectification, filtering and voltage stabilizing module, outputs a voltage of 5V, which provides a 5V power supply voltage for the entire circuit board.

The working status indicating module is bidirectionally connected with the main controller, the main controller issues working instructions to the working status indicating module, and the working status indicating module feeds back the working status of the load equipment to the main controller.

The data storage module is bidirectionally connected with the main controller for data transmission.

The network interface module is bidirectionally connected with the main controller, and sends an alarm signal to the user through the network interface after the load device has failed to start for many times.

The infrared coding learning receiving module is connected with the main controller to receive signals, the infrared coding learning receiving module is connected with the remote controller of the load device through the infrared signal, receives the infrared signal of the remote controller of the load device, and then transmits the received signal to the main controller A controller, the main controller detects and learns the infrared coded signal, and then stores the infrared coded signal into the data storage module.

The main controller is connected with the infrared signal transmitting module to send signals; the infrared signal transmitting module is connected with the signal receiving module of the load device through the infrared signal.

The main controller can read the infrared coded signal of the remote control of the corresponding load device from the EEPROM memory when the power is turned on again after a power failure, or according to the received network command, and after adjustment, it will be emitted by the infrared emitting diode to turn on the load device.

When using the smart socket for the first time, aim the remote control of the load device to be controlled at the infrared receiving window of the smart socket, and press the button of the remote control; the infrared code learning receiving module of the smart socket receives the infrared signal emitted by the remote control, and the infrared signal passes through After filtering and shaping, it is sent to the main controller. The main controller detects and learns the infrared coded signal, and stores it in the EEPROM memory. The working state of the infrared coding learning receiving module is shown in Figure 2.

When the load device is connected to the smart socket and the load device to be controlled needs to be turned on, use the infrared transmitter module to emit an infrared control signal. If the load device is in a power-off state, the load device will not be able to start automatically. After the load equipment is powered on, the main controller is in the working state. After the main controller works, after a delay for a period of time, the main controller can transmit a code of the remote control to the controlled load equipment through the infrared signal transmitting module. Under special circumstances, the controlled load device is not turned on, and the smart socket can detect the current through the current isolation transformer, because after the remote control code signal is sent, if the controlled load device is turned on, there must be current flowing in the circuit. The galvanic isolation transformer has a voltage output, and its working process state is shown in Figure 3.

The main controller reads the infrared coded data of the corresponding buttons from the EEPROM memory according to the needs or network instructions, controls the infrared signal transmitting module after modulation, sends out the working state instructions, and controls the load equipment on the smart socket to start and stop. The workflow status of the infrared signal transmitting module is shown in Figure 4.

The working current of the detection load equipment is measured and collected by the galvanic isolation transformer. The collected signal is sent to the A/D data acquisition port of the main controller through the rectification and filtering module through the AD signal pin. The main controller detects the complex voltage of the galvanic isolation transformer. , to sense the start-stop status of the load equipment on the socket; at the same time, it can also detect the power consumption of the controlled electrical load equipment. The circuit connection mode of the galvanic isolation transformer is shown in Fig. 5 .

The specific circuit connection of the closed-loop intelligent infrared remote control socket is as follows:

As shown in Figure 6:

Circuit U1 part:

The first pin of the chip STC15W408AS is suspended; the second pin is connected to the second pin of the network interface NET; the third pin is connected to one end of the button KEY, and the other end of the button KEY is grounded; the fourth pin is connected to the negative pole of the light-emitting diode LED1, which emits light The anode of the diode LED1 is connected to one end of the resistor R2, and the other end of the resistor R2 is connected to the power supply voltage VCC; the fifth pin is connected to the sixth pin of the memory chip ST24C08 and one end of the resistor R6, and the other end of the resistor R6 is connected to the power supply voltage VCC; The 6 pins are connected to the 5th pin of the memory chip ST24C08 and one end of the resistor R5, and the other end of the resistor R5 is connected to the power supply voltage VCC; the 7th pin is suspended; the 8th pin is connected to the DC power supply voltage VCC of the stabilized integrated circuit ;The 9th pin is floating; the 10th pin is grounded; the 11th pin is connected to the first pin of the chip ISP of the serial port circuit; the 12th pin is connected to the second pin of the chip ISP of the serial port circuit; the 13th pin is connected to the The first pin of the chip HS0038 of the signal receiving circuit and one end of the resistor R13, the other end of the resistor R13 is connected to the power supply voltage VCC; the 14th pin is connected to the first pin of the network interface NET; the 15th pin is connected to the infrared emission circuit One end of the resistor R10, the other end of the resistor R10 is connected to the base of the transistor Q1; the 16th pin is connected to one end of the resistor R11 in the infrared emission circuit, and the other end of the resistor R11 is connected to the base of the transistor Q2; the 17th pin to the 18th pin The pin is suspended; the 19th pin is connected to the cathode of the rectifier diode D2, one end of the resistor R4 and one end of the resistor R3, the anode of the rectifier diode D2 and the other end of the resistor R4 are grounded, and the other end of the resistor R3 is connected to the cathode of the diode D1 and the electrolytic The positive pole of the capacitor C5, the negative pole of the electrolytic capacitor C5 are grounded, the positive pole of the diode D1 is connected to the inductance coil T2; the 20th pin is suspended;

The anode of the light-emitting diode LED0 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to the power supply voltage VCC, and the anode of the light-emitting diode LED0 is grounded;

The first pin of the program download interface ISP is connected to the 11th pin of the chip STC15W408AS; the second pin is connected to the 12th pin of the chip STC15W408AS; the third pin is grounded;

The first pin of the network interface NET is connected to the 14th pin of the chip STC15W408AS; the second pin is connected to the second pin of the chip STC15W408AS; the third pin is grounded.

Circuit V1 part:

The first pin of the chip 78M05 is connected to one end of the capacitor C2, the positive pole of the electrolytic capacitor C1 and the second pin of the bridge stack circuit B1, the other end of the capacitor C2, the negative pole of the electrolytic capacitor C1, and the fourth pin of the bridge stack circuit B1 Grounding; the first pin of the bridge stack circuit B1 is connected to a pin on one side of the current transformer T1, the third pin of the bridge stack circuit B1 is connected to the other pin on the side of the current transformer T1; the other pin of the current transformer T1 One pin on one side is connected to the neutral terminal L of the power supply line of the socket; the neutral terminal L of the power supply line is connected to the AC power supply; the other pin on the other side of the current transformer T1 is connected to a pin on the side of the current transformer T2 ; The other pin on one side of the current transformer T2 is connected to the live wire end N of the power supply line of the socket; the live wire end N of the power supply line is connected to the AC power supply; the ground wire end G of the socket is connected to the protection ground; One pin is connected to the positive pole of the diode D1, and the other pin on the other side of the current transformer T2 is grounded; the negative pole of the diode D1 is connected to one end of the resistor R3 and one end of the electrolytic capacitor C5, and the other end of the resistor R3 is connected to one end of the resistor R4, The cathode of the rectifier diode D2 and the 19th pin of the chip STC15W408AS, the cathode of the electrolytic capacitor C5, the other end of the resistor R4 and the anode of the rectifier diode D2 are grounded; the second pin of the chip 78M05 is grounded; the second pin is connected to the electrolytic capacitor C3 The positive pole of the electrolytic capacitor C3 and one end of the capacitor C4 and the power supply voltage VCC are grounded.

Circuit U2 part:

The first pin to the fourth pin of the chip ST24C08 are grounded; the fifth pin is connected to one end of the resistor R5 and the sixth pin of the chip STC15W408AS, and the other end of the resistor R5 is connected to the power supply voltage VCC; the sixth pin is connected to the resistor R6 One end and the 5th pin of the chip STC15W408AS, the other end of the resistor R6 is connected to the power supply voltage VCC; the 7th pin is grounded; the 8th pin is connected to the power supply voltage VCC;

Circuit H1 part:

The first pin of the chip HS0038 is connected to the 13th pin of the chip STC15W408AS and one end of the resistor R13, and the other end of the resistor R13 is connected to the power supply voltage VCC; the second pin is grounded; the third pin is connected to the power supply voltage VCC;

The base of the transistor Q1 is connected to one end of the resistor R10, and the other end of the resistor R10 is connected to the 15th pin of the chip STC15W408AS; the emitter is connected to the power supply voltage VCC and the positive electrode of the electrolytic capacitor C9, and the negative electrode of the electrolytic capacitor C9 is grounded; the collector is connected to the light-emitting diode The positive pole of LD and the negative pole of light-emitting diode LD are connected to one end of resistor R12, and the other end of resistor R12 is connected to the collector of transistor Q2; the emitter of transistor Q2 is grounded; the base of transistor Q2 is connected to one end of resistor R11, and the other end of resistor R11 Connect to the 16th pin of the chip STC15W408AS.

Claims (9)

1. The utility model provides a closed-loop intelligence infrared remote control socket, includes smart jack, its characterized in that: the intelligent socket comprises a power output jack, a current isolation mutual inductor, a rectification filtering module, a power transformer, a rectification filtering voltage stabilizing module, a working state indicating module, a main controller, a data storage module, an infrared signal transmitting module, an infrared coding learning receiving module and a network interface module to form a closed loop circuit;

one end of the power output jack is connected with a live wire of 220V mains supply, and the other end of the power output jack is connected with the current isolation mutual inductor; the current isolation mutual inductor is respectively connected with a live wire and a zero wire of the power output jack; the current isolation mutual inductor is connected with a zero line of 220V commercial power, and the output end of the current isolation mutual inductor is connected with an AD signal pin of the main controller through the rectification filter module; the current isolation mutual inductor detects and collects current signals of the power output jacks, the collected current signals are sent to an A/D data collection port of the main controller through an AD signal pin through the rectification filter module, and the main controller judges the starting and stopping states of load equipment on the socket by detecting the repeated transformation voltage of the current isolation mutual inductor;

the 220V mains supply is connected with a rectification filtering voltage stabilizing module through a power transformer, and the rectification filtering voltage stabilizing module is connected with the main controller and used for stabilizing and filtering the power supply voltage of the controller; the working state indicating module, the data storage module and the network interface module are in bidirectional connection with the main controller for data transmission; the infrared code learning receiving module is connected with the main controller to receive signals, and the main controller is connected with the infrared signal transmitting module to transmit signals.

2. The closed loop intelligent infrared remote control socket according to claim 1, characterized in that: the current isolation mutual inductor is connected with the main controller, detected current of the output jack is input into the main controller, the main controller judges the current, if the current is too small, the fact that the electrical equipment is not normally started is indicated, and the MCU sends the infrared coding signals again until the electrical equipment is normally started.

3. The closed loop intelligent infrared remote control socket according to claim 1 or 2, characterized in that: the circuit of the current isolation transformer adopts a chip 78M05, the chip 78M05 is connected with a bridge circuit B1 after passing through an electrolytic capacitor, and the bridge circuit B1 is connected with one side of a current transformer T1; the zero line end L of the power supply line of the socket at the other side of the current transformer T1; the zero line end L of the power supply line is connected to an alternating current power supply; the other pin at the other side of the current transformer T1 is connected with one pin at one side of the current transformer T2; the live wire end N of the power supply line of the other pin socket on one side of the current transformer T2 is connected to an alternating current power supply; and after a pin at the other side of the current transformer T2 is connected with a diode D1, the pin is connected with an AD signal pin of the main controller through a rectifying and filtering circuit consisting of a load resistor, filtering current and a rectifying diode D2.

4. The closed loop intelligent infrared remote control socket according to claim 1, characterized in that: the infrared signal transmitting module is connected with a signal receiving module of the load equipment through an infrared signal.

5. The closed loop intelligent infrared remote control socket according to claim 1 or 4, characterized in that: the infrared code learning receiving module is connected with a remote controller of the load equipment through infrared signals, receives the infrared signals of the remote controller of the load equipment, transmits the received signals to the main controller, and the main controller detects and learns the infrared code signals and stores the infrared code signals to the data storage module.

6. The closed loop intelligent infrared remote control socket according to claim 1, characterized in that: the 220V commercial power passes through the power transformer and the rectification, filtering and voltage stabilization module, and the output voltage is 5V.

7. The closed loop intelligent infrared remote control socket according to claim 1, characterized in that: the intelligent socket can receive and store infrared signals input by a plurality of load equipment remote controllers.

8. The closed loop intelligent infrared remote control socket according to claim 1, characterized in that: the main controller can read the infrared coding signal of the corresponding load equipment remote controller from the EEPROM storage when a power is returned after power failure or according to a received network instruction, and the infrared coding signal is transmitted by the infrared signal transmitting module after adjustment to start the load equipment.

9. The closed loop intelligent infrared remote control socket according to claim 1, characterized in that: the main controller adopts an STC15W408AS processor; the data storage module adopts an EEPROM AT24C 02; the infrared code learning receiving module adopts an infrared receiving chip with the model number of HS 0038.