CN201142133Y - smart switch - Google Patents

Abstract

The utility model relates to a series of intelligent switches using power carrier communication. The switches include an input detection circuit, a power output circuit, a signal coupling circuit, a central processing unit circuit, and a power supply circuit; Control command; power output circuit is used to output switch control signal; signal coupling circuit realizes transmission and reception of power carrier signal; central processor circuit is used to realize data storage and processing; power supply circuit is used to provide working power for intelligent switch. The intelligent switch of the utility model can be programmed to realize the mutual control of other switches/sockets of the same kind, and can realize the function of monitoring the lighting of other rooms and the switching status of electrical appliances in one room, which is very in line with the humanized design.

Description

smart switch

technical field

The utility model relates to a switch system, in particular to an intelligent switch using power carrier communication.

Background technique

Traditional switches cannot be controlled remotely. A switch can only control electrical appliances or lighting equipment that are physically connected to it. For houses with many rooms, it will be inconvenient to use. For example, if parents want to turn off the lights and computers in the children's room, or want to control the watering system, some electrical appliances, etc., they have to go to that room to turn it off. If they are not on the same floor, they may have to go up and down the stairs to realize the operation, which is very inconvenient .

Utility model content

The technical problem to be solved by the utility model is to provide an intelligent switch for the above-mentioned defects in the functions of the existing traditional switch products.

The technical solution adopted by the utility model to solve the technical problem is to construct an intelligent switch using power carrier communication, wherein the switch includes:

An input detection circuit for inputting user commands;

A power output circuit for generating switch control signals;

A coupling circuit for coupling the power carrier signal to the power line and obtaining the carrier signal from the power line;

A central processor for realizing data storage and processing, the central processor is connected with the input detection circuit, power output circuit and signal coupling circuit, and is used to receive user instructions received by the input detection circuit and control the The power output circuit outputs the switch control signal, and the signal coupling circuit realizes the transmission and reception of the power carrier signal;

The power supply circuit for providing the working power of the intelligent switch.

In the smart switch described in the present invention, the switch further includes a function indicating circuit for displaying the working state of the switch, the function indicating circuit includes a plurality of LED lights, the LED lights and the central An I/O expansion circuit is also connected between the processors.

In the smart switch described in the utility model, the central processing unit is a PL3120 chip.

In the intelligent switch described in the utility model, the power supply circuit is composed of a rectifier bridge, a switching power supply circuit and an integrated voltage regulator step-down circuit.

In the intelligent switch described in the utility model, the signal coupling circuit is composed of series and parallel connections of inductors and capacitors.

In the smart switch described in the present invention, the input detection circuit includes a plurality of buttons, and the buttons are connected to the central processing unit.

In the intelligent switch described in the present invention, a decoding circuit is further connected between the key and the central processing unit.

The intelligent switch described in the utility model is characterized in that the key, the central processing unit and the signal coupling circuit can form a distributed central control.

In the intelligent switch described in the utility model, the power output circuit includes a triode drive circuit and a relay.

Implementing the smart switch of the utility model has the following beneficial effects: the smart switch of the utility model can be programmed to realize switching control of other switches/sockets of the same type, and can monitor the lighting and electrical status functions of other rooms in one room , very in line with humanized design.

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is the functional block diagram of the intelligent switch of the present utility model;

Fig. 2 is the exterior view of the intelligent switch of the present utility model;

Fig. 3 is the appearance diagram after removing the panel of the intelligent switch of the present invention;

Fig. 4 is the internal functional block diagram of the intelligent switch of the present utility model;

Fig. 5 is a circuit diagram of a preferred embodiment of the smart switch of the present invention.

Detailed ways

As shown in Fig. 1, it is a functional block diagram of the intelligent switch of the present invention; the switches can communicate with each other through the power line coupling power carrier signal.

As shown in Figure 2, the appearance of the new type of intelligent switch is used; the switch includes four remote control buttons, one to four local control buttons and a pair of group on group off buttons, including an intelligent dimming switch, which can Realize the dimming function of the lighting load.

As shown in Figure 3, the appearance of the new smart switch after the panel is removed; the four remote control buttons and one to four local control buttons on the switch can be replaced at will; the configuration button on the lower right is for communication mode setting and factory reset.

As shown in Figure 4, it is the internal functional block diagram of the intelligent switch of the present invention; it includes a power supply circuit, a central processing unit, a signal coupling circuit, an input detection circuit, a power output circuit and a function indicating circuit. The power supply circuit is connected to the residential distribution box, and after processing, the appropriate voltage is obtained as the power supply for other parts of the circuit; the central processing unit, as the main control part of the intelligent switch, controls other parts of the circuit except the power supply circuit, and serves as a data storage and processing carrier; the signal coupling circuit is connected to the power supply circuit, which will provide a channel for the communication between the central processing unit and other devices on the grid; the input detection circuit is connected to the central processing unit circuit, and the central processing unit circuit will Input the result to complete the corresponding action; the power output circuit is used to control the switch of the connected electrical appliance; the function indication circuit will indicate the state of the input and output according to the command of the central processing unit.

As shown in Figure 5, it is a circuit diagram of a preferred embodiment of the intelligent switch of the present utility model; the power supply circuit consists of a rectifier bridge DB1, an inductor L1, capacitors C1, C2, C3, a switching power supply control chip U1, a switching transformer T1, and a resistor R1 , R2, R3, rectifier diode D1, and integrated regulator chip U2; L1, C1, C2, R1, U1, T1, D1, R2, and R3 form a step-down switching power supply, of which L1 and C1 form an input filter circuit; R2 and R3 form a sampling circuit to sample the output voltage. Since the FB pin of U1 is fixed at 1.69V to ground, different voltages can be obtained by adjusting the values of R2 and R3; C3 filters the output voltage of the switching power supply to stabilize the waveform. U2 is an integrated voltage regulator chip, which is used to further step down the DC voltage after the switching power supply is stepped down to obtain the voltage required for subsequent circuit work. The central processing unit is composed of J1, and J1 includes the main control chip PL3120 and its peripheral circuits. The signal coupling circuit is composed of C4, C5, C6 and L3, and the two ends of C5 are respectively connected to the signal receiving and sending ends of the central processing unit, and the power carrier signal is returned to the power line through C5, C6, L3 and C4. The input detection circuit is composed of keys KEY1-KEY5, KEY-A, KEY-B, KEY-CFG, SERVICE and chips U3 and U4; among them, KEY1-KEY4 is defined as remote control keys, when any one of KEY1-KEY4 is pressed, The central processing unit will send commands for remote setting or execution to other devices; KEY5 is defined as a power output control button. When the central processing unit detects that KEY5 is pressed, it will send a signal to the power drive circuit to make the relay perform corresponding actions; KEY-A and KEY-B are defined as group control buttons, among which KEY-A is group opening and KEY-B is group closing. When KEY-A is pressed for 3 seconds, the central processing unit sends a message to all devices (including this switch) Send group control setting information, and all opened devices will be set; when KEY-A or KEY-B is pressed normally, the central processing unit will send a command to execute group opening or group closing to all devices, and all set The device will be turned on or off at the same time; KEY-CFG is defined as a configuration button, press and hold the KEY-CFG button for 3 seconds, the utility model will reset, and all information stored in the central processing unit will be cleared, and the corresponding function needs to be used next time reconfigure. Power output circuit is made of relay K1, triode Q1 and resistance R4, and relay will carry out corresponding action according to the IO0 pin signal of central processing unit, and then control is connected to the equipment of output terminal LO1 of the utility model. The function indication circuit is composed of LED1-LED6, LED-TXON, LED-PKD, LED-BIU and U5, among which LED-TXON, LED-PKD and LED-BIU are directly connected to the central processing unit as communication indicators; LED1-LED4 Corresponding to the functions of KEY1-KEY4 respectively, when the remote device is turned on, the corresponding LED light is on, when the remote device is turned off, the corresponding LED light is off; LED5 corresponds to the switch function, when the new power output relay is turned on, LED5 is on, otherwise LED5 is off ; LED6 corresponds to the group control function, LED6 flashes when performing group control settings and control.

Above-mentioned example is provided to be familiar with and use the present utility model to the person familiar with in the art, and the person familiar with the art can revise and change above-mentioned example without departing from the utility model thought of the present utility model, so the present invention The protection scope of the utility model is not limited by the above-mentioned examples, but should be the maximum scope consistent with the innovative features mentioned in the claims.

Claims (8)

1, a kind of intelligent switch that adopts power line carrier, PLC is characterized in that, described switch comprises:

Be used to import the input detecting circuit of user instruction;

Be used to produce the switch controlling signal power output circuit;

Be used to realize that power carrier signal is coupled to line of electric force and obtains the coupled circuit of carrier signal from the line of electric force coupling;

Be used to realize the central processing unit of data storage and processing, described central processing unit links to each other with described input detecting circuit, power output circuit and signal coupling circuit, be used to receive the user instruction that described input detecting circuit receives, control described power output circuit output switch control signal and described signal coupling circuit and realize the power carrier signal transmitting-receiving;

Be used to provide the feed circuit of the working power of intelligent switch.

2, a kind of intelligent switch according to claim 1, it is characterized in that, described switch also comprises the function indicating circuit that is used to show described switch working state, and described function indicating circuit comprises a plurality of LED lamps, also is connected with the I/O expanded circuit between described LED lamp and the described central processing unit.

3, a kind of intelligent switch according to claim 1 is characterized in that, described central processing unit is the PL3120 chip.

4, a kind of intelligent switch according to claim 1 is characterized in that, described feed circuit are made up of rectifier bridge, switching power circuit and integrated regulator reduction voltage circuit.

5, a kind of intelligent switch according to claim 1 is characterized in that, described signal coupling circuit is made up of the series and parallel of inductance and electric capacity.

6, a kind of intelligent switch according to claim 1 is characterized in that, described input detecting circuit comprises a plurality of buttons, and described button links to each other with described central processing unit.

7, a kind of intelligent switch according to claim 6 is characterized in that, also is connected with decoding scheme between described button and the described central processing unit.

8, a kind of intelligent switch according to claim 1 is characterized in that, described power output circuit comprises transistor drive circuit and relay.

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