A near field induction type socket

Abstract

The utility model discloses a kind of near-field induction type socket, including AC power supply module, AC power supply module is electrically connected with bluetooth induction module and control module respectively, for supplying power to bluetooth induction module and control module;The bluetooth induction module includes three for positioning target mobile device's bluetooth signal receiver, control module includes first electromagnetic relay and main control chip;The signal output end of three bluetooth signal receivers is connected with the signal input end of main control chip, and the signal output end of main control chip is connected with the signal input end of first electromagnetic relay;The utility model is accurately positioned to target mobile device by three bluetooth receivers according to triangulation principle, to control socket energization condition by first electromagnetic relay, realize the "non-inductive" use of socket and monitoring range controllable, improve positioning accuracy simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of socket technology, and in particular relates to a near-field sensing socket. Background Technology

[0002] As a power access node, a power outlet is a device that physically connects electrical appliances to the power grid and facilitates power transmission. Most existing smart outlets still rely on app operation and user-preset rules, failing to proactively detect the proximity of user devices and thus unable to achieve a seamless user experience. They also cause continuous power consumption during standby. Existing outlets that control power via Bluetooth signals only monitor Bluetooth signals within a fixed range. Outlets with indicator lights currently available suffer from problems such as continuous light at night interfering with sleep and increased electricity costs over long-term operation. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention aims to provide a near-field induction socket. This socket uses three Bluetooth receivers to accurately locate the target mobile device based on the triangulation principle. The first electromagnetic relay in the control module then controls the socket's power supply, achieving "non-intrusive" use and controllable monitoring range, while improving positioning accuracy. Furthermore, the first electromagnetic relay controls the visualization module, enabling nighttime visibility and preventing power waste caused by prolonged standby.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A near-field sensing socket includes a Bluetooth sensing module 1, an AC power supply module 2, and a control module 3;

[0006] The AC power supply module 2 is electrically connected to the Bluetooth sensing module 1 and the control module 3 respectively, and is used to supply power to the Bluetooth sensing module 1 and the control module 3.

[0007] The Bluetooth sensing module 1 includes three Bluetooth signal receivers for locating the target mobile device, and the control module 3 includes a first electromagnetic relay A and a main control chip; the signal output terminals of the three Bluetooth signal receivers are all connected to the signal input terminal of the main control chip, and the signal output terminal of the main control chip is connected to the signal input terminal of the first electromagnetic relay A.

[0008] The three Bluetooth signal receivers in the Bluetooth sensing module 1 are arranged in an equilateral triangle.

[0009] The socket also includes a visual module 4, and the AC power supply module 2 is electrically connected to the visual module 4 to supply power to the visual module 4; the visual module 4 includes a photoresistor, an indicator light C, and a second electromagnetic relay B, the indicator light C is connected in series with the second electromagnetic relay B and in parallel with the photoresistor; the photoresistor is connected in series with the first electromagnetic relay A.

[0010] The main control chip is an STM32F407VET6.

[0011] Compared with the prior art, this utility model has the following technical effects:

[0012] 1. The socket provided by this utility model has three Bluetooth signal receivers internally deployed. When at least three Bluetooth signals from a target mobile device are detected within a preset detection range, the first electromagnetic relay controls the socket to start supplying power. Compared with existing Bluetooth sockets, setting three Bluetooth signal receivers can improve the detection accuracy of Bluetooth signals from the target mobile device, achieve precise positioning of the target mobile device, and avoid the problem of false triggering.

[0013] 2. This utility model uses three Bluetooth signal receivers to accurately locate target mobile devices at different positions based on the triangulation principle, and the effective monitoring range can be flexibly adjusted, resulting in higher positioning accuracy.

[0014] 3. This utility model utilizes a visual module, where an indicator light and a photoresistor work together to ensure the socket remains constantly lit only at night, guaranteeing its visibility at night. When the socket is powered on and in a nighttime environment, the indicator light illuminates; otherwise, it remains off. Compared to existing sockets with visual functionality, this mode, linked to a Bluetooth sensing module, reduces power consumption of the indicator light in standby mode. Attached Figure Description

[0015] Figure 1 This is a flowchart of the module control for a near-field sensing socket.

[0016] Figure 2 This is a circuit diagram for a near-field induction socket.

[0017] In the diagram: A - First electromagnetic relay, B - Second electromagnetic relay, C - Indicator light.

[0018] Figure 3 This is a schematic diagram of the triangulation principle of a Bluetooth sensing module. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0020] like Figure 1 and Figure 2As shown, a near-field sensing socket includes a Bluetooth sensing module 1, an AC power supply module 2, a control module 3, and a visual module 4. The Bluetooth sensing module 1 includes three Bluetooth signal receivers for locating target mobile devices. The control module 3 includes a first electromagnetic relay A and a main control chip. The signal output terminals of the three Bluetooth signal receivers are all connected to the signal input terminal of the main control chip, and the signal output terminal of the main control chip is connected to the signal input terminal of the first electromagnetic relay A. The Bluetooth signal receivers collect the Bluetooth signals emitted by the target mobile device and transmit them to the main control chip. After analysis, the main control chip sends a control signal to the first electromagnetic relay A according to a preset monitoring range, controlling the opening and closing state of the first electromagnetic relay A, thereby controlling the on / off state of the socket's power supply. The main control chip is an STM32F407VET6.

[0021] The AC power supply module 2 includes an AC input terminal, a varistor, a safety capacitor, a rectifier and filter unit, an AC-DC conversion unit, and an output voltage regulator unit. An external AC power source is connected through the AC input terminal. The varistor and safety capacitor are connected in parallel at the AC input terminal to form an overvoltage protection unit to suppress voltage fluctuations and protect the circuit. The AC input terminal is connected to the rectifier and filter unit, where a full-bridge rectifier circuit converts AC power into pulsating DC power. After filtering by an electrolytic capacitor, a high-voltage DC power supply is output. The rectifier and filter unit is connected to the AC-DC conversion unit, where an isolated AC-DC power chip converts the high-voltage DC power into a low-voltage DC power supply. The AC-DC conversion unit is connected to the output voltage regulator unit, where a DC / DC step-down chip further stabilizes the voltage to the target level before supplying power to the Bluetooth sensing module 1, the control module 3, and the video module 4 to ensure the electrical safety of the socket. The electrical signal output terminal of the AC power supply module 2 is connected to the electrical signal input terminals of the Bluetooth sensing module 1, the control module 3, and the video module 4, respectively.

[0022] The visual module 4 includes a photoresistor, an indicator light C, and a second electromagnetic relay B. The photoresistor is connected in parallel to the series circuit of the indicator light C and the second electromagnetic relay B, and is also connected in series with the first electromagnetic relay A. When the first electromagnetic relay A is closed and energized, the photoresistor starts working, and its value changes with the ambient light to control the brightness of the indicator light C. When the ambient light is sufficient during the day, the second electromagnetic relay B is not closed, and the indicator light C is off; when the ambient light is dim at night, the second electromagnetic relay B is closed, and the indicator light C remains on, thus achieving nighttime visibility of the socket while avoiding standby power consumption.

[0023] like Figure 3As shown, the three Bluetooth signal receivers in the Bluetooth sensing module 1 are the first Bluetooth signal receiver 11, the second Bluetooth signal receiver 12, and the third Bluetooth signal receiver 13, which are evenly arranged in an equilateral triangle. The three Bluetooth signal receivers arranged in a triangular distribution can accurately locate the target mobile devices E and F at different locations according to the principle of triangulation.

[0024]

[0025] Where r is the distance from the target mobile devices E and F to the center of the three Bluetooth receivers, i.e., the preset monitoring range, which can be flexibly adjusted according to the actual situation; R1, R2, and R3 are the distances from the target devices to the three Bluetooth receivers, respectively; and l is the side length of the triangle in which the three Bluetooth receivers are arranged in an equilateral triangle. Figure 3 As shown;

[0026] If the preset monitoring range is set to 3 meters, the socket will not be powered when r > 3 meters; otherwise, it will be powered.

[0027] The working principle of this utility model is as follows:

[0028] External 220V AC power is converted into low-voltage DC through AC power supply module 2 to power the Bluetooth signal receiver. The Bluetooth signal receiver is initialized and a preset monitoring range is established to monitor whether there is a target device Bluetooth signal within this range. If no target mobile device Bluetooth signal is detected within the set range, or if the target device Bluetooth signal is detected less than three times, the first electromagnetic relay A is disconnected and no power is supplied. If the target mobile device Bluetooth signal is detected at least three times within the set range, the main control chip analyzes and locates the collected data according to the preset monitoring range and sends a control signal to the first electromagnetic relay A. The first electromagnetic relay A closes, and the socket is powered on, realizing sensorless automatic control of the socket's power supply. Power is supplied to the first electromagnetic relay A through AC power supply module 2. When the first electromagnetic relay A is closed, the photoresistor of the visibility module 4 starts working, and its value changes with the ambient light. When the ambient light is sufficient during the day, the second electromagnetic relay B is not closed, and the indicator light C is off. When the ambient light is dim at night, the second electromagnetic relay B closes, and the indicator light C remains on, achieving nighttime visibility of the socket while avoiding standby power consumption.

Claims

1. A near field inductive socket, characterized by: It includes a Bluetooth sensing module (1), an AC power supply module (2), and a control module (3); The AC power supply module (2) is electrically connected to the Bluetooth sensing module (1) and the control module (3) respectively, and is used to supply power to the Bluetooth sensing module (1) and the control module (3); The Bluetooth sensing module (1) includes three Bluetooth signal receivers for locating the target mobile device, and the control module (3) includes a first electromagnetic relay A and a main control chip; the signal output terminals of the three Bluetooth signal receivers are all connected to the signal input terminal of the main control chip, and the signal output terminal of the main control chip is connected to the signal input terminal of the first electromagnetic relay A.

2. The near field inductive socket according to claim 1, wherein: The three Bluetooth signal receivers in the Bluetooth sensing module (1) are arranged in an equilateral triangle.

3. The near field inductive socket according to claim 1, wherein: The socket also includes a visual module (4), and the AC power supply module (2) is electrically connected to the visual module (4) for supplying power to the visual module (4); the visual module (4) includes a photoresistor, an indicator light C, and a second electromagnetic relay B, the indicator light C is connected in series with the second electromagnetic relay B and in parallel with the photoresistor; the photoresistor is connected in series with the first electromagnetic relay A.

4. The near field inductive socket according to claim 1, wherein: The main control chip is an STM32F407VET6.

Images