A new intelligent safety socket control system

Abstract

The present invention discloses an intelligent safety socket control system, which includes a main control chip and: an infrared safety distance detection module, a human body capacitance induction detection module, a zero-sequence current leakage detection module, a current overload detection module, and a human body contact conductor detection module respectively connected to the main control chip. It can ensure personal safety during the use of the socket, allowing users to use it with greater peace of mind, and at the same time provides a new type of socket with intelligent control and smart services.

Description

Technical Field

[0001] The present invention belongs to the field of household appliances, and in particular relates to a novel intelligent safety socket control system. Background Art

[0002] Sockets are common electrical appliances that every household must use. Since the product was introduced to users, there has been no significant technological improvement. Traditional products have always been in a state of no fundamental protection for personal safety during use. For example, when the human body operates the plug, it is easy to cause leakage due to the quality of the plug itself and the environment, leading to accidental electric shock. Taking into account the hidden dangers to personal safety, this product is designed to fill the gaps in the existing technology. Summary of the Invention

[0003] In response to the defects in the existing technology, the present invention provides a new intelligent safety socket control system that can ensure personal safety during the use of the socket, allowing users to use it with greater peace of mind. At the same time, it provides a new socket with intelligent control and smart services.

[0004] To this end, the present invention discloses a novel intelligent safety socket control system, including a main control chip and:

[0005] The infrared safety distance detection module is used to detect the distance between the socket surface and the surface of the insulating head at the front end of the plug.

[0006] The human body capacitance sensing detection module is used to detect the behavior state of the human body during operation and control the power state of the socket according to the capacitance change caused by the plug being inserted into the socket.

[0007] The zero-sequence current leakage detection module is used to detect the leakage state of the socket, determine whether it is in a leakage state based on the detected zero-sequence current state, and then control the power output through the relay to perform leakage protection.

[0008] The current overload detection module is used to detect whether the load current exceeds the specified value, and according to this condition, it controls the power supply state by controlling the relay to play an overload protection role.

[0009] The human body contact conductor detection module is used to determine whether there is a conductor directly contacting the conductive metal sheet of the socket, and whether the human body directly contacts the conductor; and control the power state of the socket based on this condition.

[0010] Furthermore, the main control chip is connected to a wireless communication module, and the wireless communication module is a 433MHz wireless communication module.

[0011] Furthermore, the 433 MHz wireless communication module is connected to a mobile terminal.

[0012] Furthermore, the main control chip is also connected to an A / D conversion module, and the A / D conversion module is connected to an air quality detection module, an ambient light detection module, an ambient temperature detection module, an ambient humidity detection module, a flame sensor detection module and an alarm module.

[0013] Furthermore, the air quality detection module is an air quality sensor, the ambient light detection module is a photosensor, the ambient temperature detection module is a temperature sensor, the ambient humidity detection module is a humidity sensor, and the flame sensing detection module is a flame sensor.

[0014] Furthermore, the main control chip is also connected to a USB module.

[0015] The beneficial effects of the present invention are:

[0016] 1) Detect whether the socket is in direct contact with the conductor by the human body. If so, the power will be turned off to prevent and protect personal safety in advance.

[0017] 2) If the human body does not leave the plug after the plug is inserted, the power will not be supplied. Ensure that the human body has left the plug before the power is supplied to prevent accidental electric shock.

[0018] 3) If a person accidentally touches a live conductor during normal power-on status, leakage detection will take effect and immediately cut off the power supply to ensure personal safety.

[0019] 4) When it is detected that the current exceeds the load rating, the power supply is immediately cut off to ensure that the electrical appliances are not damaged due to overload or high temperature fire caused by long-term overload, thereby protecting property and safety.

[0020] 5) When a person in the room occasionally feels unwell and needs rescue help, the person seeking help can make an alarm through the alarm module, and the rescue signal will be sent to the mobile phone of the relevant person through the wireless network to remind the rescue.

[0021] 6) Detect combustible gas concentration and air quality related component index parameters to provide safety reminders and air quality detection.

[0022] 7) The flame detection sensor can monitor the presence of open flames in the room in real time, and then send the status to the relevant user's mobile phone via the wireless network to remind the user of the indoor fire safety status in real time, and prevent accidents that cause property safety accidents in time.

[0023] 8) Ambient temperature, humidity and light collection are collected, and through wireless connection and Internet, daily life related status is uploaded to the user's mobile phone to play a role in daily life services and make life more intelligent. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. In the drawings, similar elements or parts are generally identified by similar reference numerals. Elements or parts in the drawings are not necessarily drawn to scale.

[0025] Air quality detection module, ambient light detection module, ambient temperature detection module, ambient humidity detection module, flame sensor detection module and alarm module

[0026] Figure 1 This is a schematic diagram of the leakage detection circuit of the present invention.

[0027] Figure 2 This is a schematic diagram of the safety distance detection circuit of the present invention.

[0028] Figure 3 This is a schematic diagram of the alarm module and the human body contact conductor detection circuit of the present invention.

[0029] Figure 4 This is a schematic diagram of the power protection circuit of the present invention.

[0030] Figure 5 This is a circuit diagram of the flame sensor detection module of the present invention.

[0031] Figure 6 This is a circuit diagram of the ambient light detection module of the present invention.

[0032] Figure 7 This is a circuit diagram of the air quality detection module of the present invention.

[0033] Figure 8 This is a circuit diagram of the ambient humidity detection module of the present invention.

[0034] Figure 9 This is a circuit schematic diagram of the ambient temperature detection module of the present invention.

[0035] Figure 10 This is a circuit schematic diagram of the main control chip and 433MHz wireless module of the present invention.

[0036] Figure 11 1 is a schematic diagram of the operational amplifier circuit of the present invention.

[0037] Figure 12 This is a schematic diagram of the voltage stabilizing circuit of the present invention.

[0038] Figure 13 It is an operation flow chart of the present invention. DETAILED DESCRIPTION

[0039] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0040] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0041] like Figures 1 to 13 As shown, this embodiment discloses an intelligent safety socket control system, including a main control chip and the following modules respectively connected to the main control chip: an infrared safety distance detection module, which is used to detect the distance between the surface of the socket and the surface of the insulating head at the front end of the plug. A human body capacitance induction detection module, which is used to detect the behavior state of the human body during operation, and control the power-on state of the socket according to the capacitance change caused by the socket being inserted into the plug. A zero-sequence current leakage detection module, which is used to detect the leakage state of the socket, and judge whether it is in a leakage state according to the detected zero-sequence current state, and then control the power output through a relay for leakage protection. A current overload detection module, which is used to detect whether the load current exceeds the specified value, and control the power-on state of the power supply by controlling the relay according to this condition to provide overload protection. A human body contact conductor detection module, which is used to judge whether there is a conductor directly contacting the conductive metal sheet of the socket, and whether the human body is directly contacting the conductor; and control the power-on state of the socket according to this condition.

[0042] In this embodiment, the infrared safety distance measurement module uses an infrared reflection sensor, such as Figure 2 As shown in U4 and U6, U4, R12, C4, R16, and R14 constitute the distance detection circuit of plug 1, and U6, R13, C5, R17, and R15 constitute the distance detection circuit of plug 2.

[0043] The human body capacitance sensing detection module adopts a capacitive sensing chip design, which detects the human body's behavior during operation, thereby playing a safety protection role. When the operator inserts the plug into the socket, the capacitive sensing chip senses the human body capacitance. At this time, the socket will not be powered on until there is no human body capacitance sensing for more than 1S. Figure 3 As shown, U7 is a human body capacitance sensing chip, and U7, KO2 pin, C3 and KEY2 sensing electrode constitute a human body capacitance sensing circuit. In this embodiment, the effective sensing distance is set to be less than or equal to 5 mm.

[0044] Zero sequence current leakage detection module such as Figure 1As shown, the socket is a 2-way dual-control socket. Each socket independently detects the leakage status of the circuit and turns on and off the power without affecting the normal use of the other socket. The leakage detection is performed by U2 and U3 to collect the zero-sequence current state. When the socket is in a normal state, the currents of chip pins 5 and 6 are equal and opposite in direction, so it is judged as 0 current. When the output current of any of the two pins is unbalanced, it is judged as a leakage state. At this time, relays K1 and K2 are immediately executed to cut off the power output to play a leakage protection role. The "leakage overload detection module" performs precise operation and compensation processing of the operational amplifier in the design, with an output sensitivity of ≤0.1S and a false operation of ≤1‰.

[0045] In the current overload detection module, overload detection is performed by U2 and U3 outputting the corresponding load current. When the current exceeds the specified value, relays K1 and K2 are activated and the power output is cut off to provide overload protection. This embodiment is based on programmable chip program control, so the user can adjust the output current overload value in increments of 1A-20A, with an output sensitivity of ≤0.1S and a false operation of ≤1‰.

[0046] In the human body contact conductor detection module, when a conductor directly contacts the conductive metal sheet of the socket and a human body directly contacts the conductor, the socket will not perform the power-on action. The power can only be turned on when the human body leaves the conductor or unplugs the conductor. As shown in the figure, K3, R2, R3, R4, R10, Q3, and Q5 constitute a 1-way socket human body contact conductor detection circuit, and K4, R5, R6, R7, R11, Q4, and Q6 constitute a 1-way socket human body contact conductor detection circuit; when relays K1 and K2 are in the open state, K3 , K4 can be in the closed state. After K1 and K2 are disconnected, the jack is isolated from the input strong electricity, and K3 and K4 are closed at this time and connected to the jack plug. When a human body touches the metal conductor outside the plug, the static electricity carried by the human body is introduced into R2, R3, R5, and R6 and then connected to the base of Q5 and Q6, causing the transistor to amplify and turn on. Because the collectors of Q5 and Q6 are connected to the pins of the microcontroller, the microcontroller controls whether the relays K1 and K2 can be turned on and off through the program. Among them, K4 and K5 must be disconnected from the plug connection circuit before connecting the strong electricity of K1 and K2.

[0047] Furthermore, the main control chip is connected to a wireless communication module, which is a 433MHz wireless communication module. The 433MHz wireless communication module is connected to a mobile terminal. The main control chip is also connected to an A / D conversion module, which is connected to an air quality detection module, an ambient light detection module, an ambient temperature detection module, an ambient humidity detection module, a flame sensor detection module, and an alarm module. The air quality detection module is an air quality sensor, the ambient light detection module is a photosensor, the ambient temperature detection module is a temperature sensor, the ambient humidity detection module is a humidity sensor, and the flame sensor detection module is a flame sensor. The main control chip is also connected to a USB module.

[0048] Furthermore, in this embodiment, the main control chip used is STC15W401AS, which is connected to the 433MHz wireless communication module through the main control chip, and then connected to the user's mobile terminal such as the mobile phone through the 433MHz wireless communication module, so that the parameters of each module controlled by the main control chip can be sent to the mobile terminal, and then the environmental parameters of the socket and the environment where the socket is located can be viewed through the mobile terminal, and alarm information can be received.

[0049] In addition, in this embodiment, the socket is also provided with a USB module, which can be used to derive the operating parameters of the socket from the USB module, making it easier to view the operating information and diagnose the source of the fault. In this embodiment, a voltage stabilizing module is also provided as shown in the figure.

[0050] In addition, it should be further explained that the relay used in this embodiment is a clutch relay, which does not need to continuously provide control current to maintain the two states of on and off, and controls the jack to be double-on and double-off. Of course, using a conventional relay will not affect the specific implementation of this solution.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A new type of intelligent safety socket control system, characterized in that: It includes a main control chip and the following components connected to the main control chip: Infrared safety distance detection module, used to detect the distance between the socket surface and the surface of the insulating head at the front end of the plug; The human body capacitance sensing detection module is used to detect the human body's behavior during operation and control the socket's power-on status based on the capacitance change caused by the plug being inserted into the socket. The human body capacitance sensing detection module uses a capacitive sensing chip design. When the operator inserts the plug into the socket, the capacitive sensing chip senses the human body's capacitance. At this time, the socket will not be powered on until there is no human body capacitance sensing for more than 1 second. The zero-sequence current leakage detection module is used to detect the leakage state of the socket. It determines whether the socket is in a leakage state based on the detected zero-sequence current state, and then cuts off the power output through the relay for leakage protection; The current overload detection module is used to detect whether the load current exceeds the specified value, and according to this condition, it controls the relay action to cut off the power output to provide overload protection; A human body contact conductor detection module is used to determine when a conductor directly contacts the conductive metal sheet of the socket and the human body directly contacts the conductor. At this time, the socket does not perform the power-on action; the main control chip is connected to a wireless communication module, which is a 433MHz wireless communication module; the 433MHz wireless communication module is connected to a mobile terminal; the main control chip is also connected to an A / D conversion module, which is connected to an air quality detection module, an ambient light detection module, an ambient temperature detection module, an ambient humidity detection module, a flame sensor detection module and an alarm module; the air quality detection module is an air quality sensor, the ambient light detection module is a photosensor, the ambient temperature detection module is a temperature sensor, the ambient humidity detection module is a humidity sensor, and the flame sensor detection module is a flame sensor; the main control chip is also connected to a USB module.

Images