A smart power strip based on the Internet of Things

Abstract

This utility model relates to the field of household appliances and provides an IoT-based smart power strip, including a power module, an input port, an input protection circuit, a main control module, a drive module, a communication module, and multiple socket interfaces. The input end of the input port is connected to the AC power supply line. The input end of the input protection circuit is connected to the input port. The input end of the drive module is connected to the input protection circuit, and its output end is connected to the socket interfaces. The controlled end is connected to the output end of the main control module to control the connection and disconnection between the socket interfaces and the input port under the signal of the main control module. The communication module is connected to the main control module for IoT communication with the main control module. The input end of the power module is connected to the input port, and its output end provides DC power to the main control module, the drive module, and the communication module. This utility model can control the switching on and off of each socket on the power strip through the Internet of Things.

Description

Technical Field

[0001] This utility model relates to the field of household appliances, and more specifically, to a smart power strip based on the Internet of Things. Background Technology

[0002] With the rapid development of IoT technology, it has been widely used in smart homes. However, most power strips still use manual switches. Users have to go to the power strip and press a button to turn the power on or off when they need to turn off or on the power of the appliances connected to the power strip. Remote control is not possible, which is inconvenient. Utility Model Content

[0003] The problem this invention solves is how to provide an intelligent power strip that can be remotely controlled via network communication.

[0004] To address the aforementioned issues, this utility model provides an IoT-based smart power strip, comprising: a power module, an input port, an input protection circuit, a main control module, a drive module, a communication module, and multiple socket interfaces. The input terminal of the input port is connected to the mains power supply line. The input terminal of the input protection circuit is connected to the input port. The input terminal of the drive module is connected to the input protection circuit, and its output terminal is connected to the socket interfaces. The controlled terminal is connected to the output terminal of the main control module to control the connection / disconnection between the socket interfaces and the input port under the signal of the main control module. The communication module is connected to the main control module for IoT communication of the main control module. The input terminal of the power module is connected to the input port, and its output terminal provides DC power to the main control module, the drive module, and the communication module.

[0005] Furthermore, the incoming line protection circuit includes a first fuse, the input terminal of which is connected to the live wire terminal of the incoming line port, and the output terminal is connected to the drive module.

[0006] Furthermore, the drive module includes multiple drive circuits, with the controlled terminal of each drive circuit connected to one output terminal of the main control module, and the output terminal connected to a corresponding socket interface.

[0007] Furthermore, the driving circuit includes a relay circuit and a current detection circuit. The relay circuit is used to control the power supply to and from the socket interface, and the current detection circuit is used to detect the current information of the electrical appliances connected to the socket interface.

[0008] Furthermore, the relay circuit includes a first MOSFET and a first relay. The first lead of the gate of the first MOSFET is connected to the output terminal of the main control module via a first resistor, and the second lead is grounded via a second resistor. The source of the first MOSFET is grounded, and the drain is connected to the second terminal of the coil of the first relay. The first terminal of the coil of the first relay is connected to the DC power supply. The first terminal of the open contact of the first relay is connected to the live wire terminal of the input port via the first fuse, and the second terminal is connected to the live wire terminal of the socket interface.

[0009] Furthermore, the current detection circuit includes a first Hall current sensor, the first detection terminal of the first Hall current sensor is connected to the neutral wire terminal of the socket interface, the second detection terminal is connected to the neutral wire terminal of the input port, and the output terminal is connected to the input terminal of the main control module.

[0010] Furthermore, the power module includes a first transformer, a first rectifier bridge, a first voltage conversion circuit, and a filter circuit. The input terminal of the first transformer is connected to the input port, the input terminal of the first rectifier bridge is connected to the first transformer, and the output terminal is connected to the input terminal of the first voltage conversion circuit. The output terminal of the first voltage conversion circuit outputs a 5V DC power supply, and the filter circuit is located at the output terminal of the first voltage conversion circuit.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By connecting the main control module to the communication module, the main control module is integrated into the Internet of Things (IoT). Users can communicate with the main control module via Wi-Fi or other networks on their mobile devices. Furthermore, by setting up relay circuits driven by the main control module in multiple routes, each relay circuit controls the power on / off of a corresponding socket, enabling the main control module to control the power supply of each appliance connected to each socket. This allows users to remotely control the power supply of each appliance connected to the smart power strip via the IoT, greatly enhancing user convenience. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall principle structure of an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the principle structure of the driving module in an embodiment of this utility model;

[0015] Figure 3 This is a schematic diagram of the driving circuit in an embodiment of the present invention.

[0016] Figure 4 This is a schematic diagram of the principle structure of the power module in an embodiment of this utility model. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or illustrative embodiment of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0020] like Figure 1 As shown, this utility model provides an IoT-based smart power strip, including: a power module, an input port, an input protection circuit, a main control module, a drive module, a communication module, and multiple socket interfaces. The input end of the input port is connected to the AC power input line. The input end of the input protection circuit is connected to the input port. The input end of the drive module is connected to the input protection circuit, and its output end is connected to the socket interfaces. The controlled end is connected to the output end of the main control module to control the connection and disconnection between the socket interfaces and the input port under the signal of the main control module. The communication module is connected to the main control module for IoT communication of the main control module. The input end of the power module is connected to the input port, and its output end provides DC power to the main control module, the drive module, and the communication module.

[0021] It should be noted that the communication module connected to the main control module enables the main control module to access the Internet of Things (IoT). Users can communicate with the main control module via Wi-Fi or other networks on their mobile devices. In this way, users can remotely control the power on / off of each connected appliance on the smart power strip through the IoT, which makes it more convenient for users.

[0022] The main control module can use a microcontroller chip, and the communication module can use a communication chip such as WIFI or Bluetooth to enable communication between the socket and the user's mobile terminal. In this embodiment, to further reduce the circuit size, an integrated design of the main control module and the communication module can be adopted, using a SOC chip with integrated communication functions, such as the ESP32-C6. The ESP32-C6 has dual processors, and while realizing input / output control, it also has a WIFI module and an onboard antenna to realize IoT communication.

[0023] In one embodiment of this utility model, the incoming line protection circuit includes a first fuse, the input terminal of which is connected to the live wire terminal of the incoming line port, and the output terminal is connected to the driving module.

[0024] It should be noted that a fuse is used as the total current protection for all sockets. When the total current exceeds the current limit of the fuse, it will blow to protect the socket.

[0025] In one embodiment of this utility model, the driving module includes multiple driving circuits, and the controlled terminal of each driving circuit is connected to one output terminal of the main control module, and the output terminal is connected to a corresponding socket interface.

[0026] It should be noted that, as Figure 2 As shown, by setting up a drive circuit driven by a multi-route main control module, each relay circuit controls the power on / off of a corresponding socket, enabling the main control module to control the power supply of the appliances connected to each socket. For example, multiple sockets on the power strip are connected to a desk lamp, humidifier, charger, etc. If a user wants to turn off the humidifier individually, they can use a mobile terminal to send a disconnect operation to the corresponding numbered socket. The main control module receives the signal and drives the corresponding drive circuit to operate, thus turning it off.

[0027] In one embodiment of this utility model, the driving circuit includes a relay circuit and a current detection circuit. The relay circuit is used to control the power supply to and from the socket interface, and the current detection circuit is used to detect the current information of the electrical appliance connected to the socket interface.

[0028] It should be noted that, as Figure 3 As shown, a relay is used as the on / off drive to achieve effective control of high voltage by low voltage. By setting individual current detection for each socket, the main control module can automatically shut down when the output current of the socket exceeds the socket's load capacity. At the same time, the user can view the current. When the charger is connected to the socket for charging, the charging status can be observed through the current. The user can also operate and remotely disconnect when fully charged.

[0029] In one embodiment of this utility model, the relay circuit includes a first MOSFET and a first relay. The first lead of the gate of the first MOSFET is connected to the output terminal of the main control module via a first resistor, and the second lead is grounded via a second resistor. The source of the first MOSFET is grounded, and the drain is connected to the second terminal of the coil of the first relay. The first terminal of the coil of the first relay is connected to the DC power supply. The first terminal of the open contact of the first relay is connected to the live wire terminal of the input port via a first fuse, and the second terminal is connected to the live wire terminal of the socket interface.

[0030] It should be noted that, as Figure 3 As shown, when the first MOSFET Q1 receives the signal PA1 from the main control module through the first resistor R1, the first MOSFET Q1 is turned on, which in turn energizes the coil of the first relay RL1 and causes its opening to close. The live wire end of the socket interface is connected to the live wire, and the neutral wire end is connected to the neutral wire through the current detection circuit, thus realizing the power-on.

[0031] In one embodiment of this utility model, the current detection circuit includes a first Hall current sensor, the first detection terminal of the first Hall current sensor is connected to the neutral terminal of the socket interface, the second detection terminal is connected to the neutral terminal of the input port, and the output terminal is connected to the input terminal of the main control module.

[0032] It should be noted that, as Figure 3 As shown, the first Hall current sensor U1 can be an ACS712ELCTR. It connects to the circuit of the electrical appliance connected to the socket and can transmit the circuit current information to the main control module when the appliance is working.

[0033] In one embodiment of this utility model, the power supply module includes a first transformer, a first rectifier bridge, a first voltage conversion circuit, and a filter circuit. The input terminal of the first transformer is connected to the input port, the input terminal of the first rectifier bridge is connected to the first transformer, and the output terminal is connected to the input terminal of the first voltage conversion circuit. The output terminal of the first voltage conversion circuit outputs a 5V DC power supply, and the filter circuit is disposed at the output terminal of the first voltage conversion circuit.

[0034] It should be noted that, as Figure 4 As shown, the input terminal of the power module is connected to 220V AC power. After the 220V AC power is reduced by the step-down transformer, it is rectified by the rectifier bridge to convert the AC power into DC power. Then, the first voltage conversion circuit converts it into 5V DC power to provide DC power to the main control SOC chip and relay. The filter circuit uses a filter capacitor, which is set between the output terminal of the first voltage conversion circuit and ground to filter the power supply. The first voltage conversion circuit can use a power conversion chip of model LM7805.

[0035] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A smart power strip based on the Internet of Things, characterized in that, include: The system includes a power module, an input port, an input protection circuit, a main control module, a drive module, a communication module, and multiple jack interfaces. The input terminal of the input port is connected to the mains power supply. The input terminal of the input protection circuit is connected to the input port. The input terminal of the drive module is connected to the input protection circuit, and its output terminal is connected to the jack interfaces. The controlled terminal is connected to the output terminal of the main control module to control the connection and disconnection between the jack interfaces and the input port under the signal of the main control module. The communication module is connected to the main control module for IoT communication of the main control module. The input terminal of the power module is connected to the input port, and its output terminal provides DC power to the main control module, drive module, and communication module.

2. The smart power strip based on the Internet of Things according to claim 1, characterized in that, The incoming line protection circuit includes a first fuse, the input terminal of which is connected to the live wire terminal of the incoming line port, and the output terminal is connected to the drive module.

3. The smart power strip based on the Internet of Things according to claim 2, characterized in that, The drive module includes multiple drive circuits, and the controlled terminal of each drive circuit is connected to one output terminal of the main control module, and the output terminal is connected to a corresponding socket interface.

4. The smart power strip based on the Internet of Things according to claim 3, characterized in that, The driving circuit includes a relay circuit and a current detection circuit. The relay circuit is used to control the power supply to and from the socket interface, and the current detection circuit is used to detect the current information of the electrical appliances connected to the socket interface.

5. The smart power strip based on the Internet of Things according to claim 4, characterized in that, The relay circuit includes a first MOSFET and a first relay. The first lead of the gate of the first MOSFET is connected to the output terminal of the main control module via a first resistor, and the second lead is grounded via a second resistor. The source of the first MOSFET is grounded, and the drain is connected to the second terminal of the coil of the first relay. The first terminal of the coil of the first relay is connected to the DC power supply. The first terminal of the open contact of the first relay is connected to the live wire terminal of the input port via the first fuse, and the second terminal is connected to the live wire terminal of the socket interface.

6. The smart power strip based on the Internet of Things according to claim 5, characterized in that, The current detection circuit includes a first Hall current sensor, the first detection terminal of the first Hall current sensor is connected to the neutral wire terminal of the socket interface, the second detection terminal is connected to the neutral wire terminal of the input port, and the output terminal is connected to the input terminal of the main control module.

7. The smart power strip based on the Internet of Things according to claim 1, characterized in that, The power module includes a first transformer, a first rectifier bridge, a first voltage conversion circuit, and a filter circuit. The input terminal of the first transformer is connected to the input port, the input terminal of the first rectifier bridge is connected to the first transformer, and the output terminal is connected to the input terminal of the first voltage conversion circuit. The output terminal of the first voltage conversion circuit outputs a 5V DC power supply, and the filter circuit is located at the output terminal of the first voltage conversion circuit.

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