Extension socket

Abstract

The utility model provides an extension socket, relates to the technical field of sockets, and is used for overcoming the phenomena of energy waste and potential safety hazards caused by forgetting to turn off the extension socket. The extension socket comprises a power supply unit, a signal receiving unit, a signal transmitting unit, an induction unit, a control unit and a switch unit. The power supply unit provides direct-current voltage for the signal receiving unit, the sensing unit, the control unit and the switch unit. The signal receiving unit is electrically connected with the signal transmitting unit, and the control unit is electrically connected with the signal receiving unit and used for receiving a control signal transmitted by the signal receiving unit and generating a first starting signal according to the control signal. The sensing unit senses a human body signal and generates a second starting signal according to the human body signal. The control unit is electrically connected with the sensing unit and used for receiving the second starting signal. The control unit generates a starting signal according to the first starting signal and the second starting signal. The switch unit is electrically connected with the control unit and used for receiving the starting signal and controlling self starting according to the starting signal.

Description

Technical Field

[0001] This application relates to the field of socket technology, specifically to a power strip. Background Technology

[0002] With the development of society and the economy and the gradual improvement of people's living standards, the process of making household appliances more intelligent and user-friendly is constantly advancing. As an extremely common electrical device in the home, power strips provide power interfaces for various household appliances, and the intelligentization of power strips will bring great convenience to people's lives.

[0003] The advantages of power strips are the large number of sockets, ease of relocation, and convenient use. However, they also have certain drawbacks, among which safety is a crucial issue that power strips need to address.

[0004] In existing technologies, people often forget to turn off power strips when they are not in use, which not only wastes energy but also poses safety hazards. Utility Model Content

[0005] This application provides a power strip to overcome the energy waste and safety hazards caused by forgetting to turn off the power strip.

[0006] To achieve the above objectives, this application provides a power strip, including a power supply unit, a signal receiving unit, a signal transmitting unit, a sensing unit, a control unit, and a switching unit. The signal receiving unit, sensing unit, control unit, and switching unit are all electrically connected to the power supply unit, which provides DC voltage to these units. The signal receiving unit is electrically connected to the signal transmitting unit and receives control signals transmitted by the signal transmitting unit. The control unit is electrically connected to the signal receiving unit and receives the control signals transmitted by the signal receiving unit, generating a first start signal based on the control signals. The sensing unit senses human body signals and generates a second start signal from these signals. The control unit is electrically connected to the sensing unit and receives the second start signal. The control unit generates a start signal based on the first and second start signals. The switching unit is electrically connected to the control unit and receives the start signal, controlling its own activation based on the start signal.

[0007] When the above technical solution is adopted, the signal receiving unit can receive the control signal sent by the signal transmitting unit. The signal receiving unit is also electrically connected to the control unit and can transmit the received control signal to the control unit. The control unit generates a first start signal according to the control signal. The sensing unit is used to sense human body signals and generate a second start signal from the human body signals. The sensing unit is electrically connected to the control unit to transmit the second start signal to the control unit. The control unit can generate a start signal according to the first start signal and the second start signal. The switching unit is electrically connected to the control unit, can receive the start signal, and control itself to start according to the start signal. At this time, the start-up of the power strip provided in the embodiments of this application can be realized.

[0008] In practice, the power strip can only be activated if both conditions are met simultaneously: the sensing unit detects a human body signal and the signal receiving unit receives the control signal sent by the signal transmitting unit. When people are not using the power strip and the sensing unit does not detect a human body signal, the power strip is in the off state, which can avoid energy waste and safety hazards caused by people forgetting to turn it off.

[0009] In one possible implementation, the power supply unit includes a power module and a step-down module. The power module is electrically connected to an external power source to receive external AC voltage and convert it into DC voltage. Both the sensing unit and the switching unit are electrically connected to the output of the power module to receive the DC voltage. The step-down module is also electrically connected to the output of the power module to receive the DC voltage and convert it into a low-voltage DC voltage. Both the signal receiving unit and the control unit are electrically connected to the output of the step-down module to receive the low-voltage DC voltage.

[0010] When the above technical solution is adopted, the power supply unit can provide different DC voltages for use by the multiple modules included in the power strip provided in this application, thereby expanding the range of module options.

[0011] In one possible implementation, the power supply unit further includes a first filter, which is electrically connected to the output terminal of the power supply module. The first filter is used to receive DC voltage and filter the DC voltage to obtain a filtered DC voltage, which is used to enable the power supply module to provide the filtered DC voltage to the sensing unit, the switching unit, and the buck module.

[0012] When the above technical solution is adopted, the ripple and noise in the DC voltage output by the power module are reduced, so that the DC voltage is smoother.

[0013] In one possible implementation, the control unit includes a control module and an AND gate module. The control module is electrically connected to a signal receiving unit for receiving control signals and generating a first start signal based on the control signals. A first receiving terminal of the AND gate module is electrically connected to the output terminal of the control module for receiving the first start signal. A second receiving terminal of the AND gate module is electrically connected to a sensing unit for receiving a second start signal. The AND gate module generates a start signal based on the first and second start signals. A switching unit is electrically connected to the output terminal of the AND gate module for receiving the start signal.

[0014] In one possible implementation, the control unit further includes a first button and a first resistor. One end of the first button is connected to ground, and the other end of the first button is connected to the control module. One end of the first resistor is connected to the power supply unit, and the other end of the first resistor is connected to the other end of the first button.

[0015] In one possible implementation, the control unit further includes a first light-emitting diode (LED) and a second resistor. The anode of the first LED is electrically connected to the control module. The cathode of the first LED is electrically connected to one end of the second resistor, and the other end of the second resistor is electrically connected to ground.

[0016] In one possible implementation, the signal receiving unit includes a signal receiving antenna and a signal receiving module. The signal receiving antenna is electrically connected to the signal transmitting unit and is used to receive control signals. The signal receiving module is electrically connected to the signal receiving antenna and is used to receive control signals. The output terminal of the signal receiving module is electrically connected to the control unit and is used to transmit control signals to the control unit.

[0017] In one possible implementation, the signal transmitting unit includes a battery, a second button, a signal transmitting module, and a signal transmitting antenna. The negative terminal of the battery is connected to ground. One end of the second button is connected to ground, and the positive terminal of the battery is electrically connected to the other end of the second button, forming a first connection point. The first connection point is electrically connected to the input terminal of the signal transmitting module. When the second button is pressed, the signal transmitting module generates a control signal. The signal transmitting module is also electrically connected to the positive terminal of the battery, which powers the signal transmitting module. The output terminal of the signal transmitting module is electrically connected to the signal transmitting antenna to provide a control signal to the signal transmitting antenna.

[0018] In one possible implementation, the sensing unit includes a radar module for sensing human body signals and generating a second activation signal from these signals. The radar module is electrically connected to the second receiver of the AND gate module to provide the second activation signal to the AND gate module.

[0019] In one possible implementation, the switching unit includes a transistor and a relay. The base of the transistor is electrically connected to the output of the AND gate module to receive a start signal, and the emitter of the transistor is electrically connected to ground. The relay is electrically connected to the power supply unit to receive DC voltage. The collector of the transistor is electrically connected to the input of the relay, and the relay is also electrically connected to an external AC voltage and the load.

[0020] When the above technical solution is adopted, after the transistor receives the start signal transmitted by the AND gate module, the transistor turns on, which can make the relay energize, connect the load to the live wire, and start the power strip. Attached Figure Description

[0021] Figure 1 A circuit diagram of a power strip provided in an embodiment of this application.

[0022] Figure 2 This is a partial circuit diagram of a power supply unit provided in an embodiment of this application.

[0023] Figure 3 This is a circuit diagram of the step-down module provided in an embodiment of this application.

[0024] Figure 4 This is a schematic diagram of the sensing unit provided in an embodiment of this application.

[0025] Figure 5 This is a schematic diagram of the control module provided in an embodiment of this application.

[0026] Figure 6 Circuit diagram of the AND gate module provided in the embodiments of this application Figure 1 .

[0027] Figure 7 This is a circuit diagram of a switching unit provided in an embodiment of this application.

[0028] Figure 8 A partial circuit diagram of the control unit provided in the embodiments of this application. Figure 1 .

[0029] Figure 9 A partial circuit diagram of the control unit provided in the embodiments of this application. Figure 2 .

[0030] Figure 10 A partial circuit diagram of the control unit provided in the embodiments of this application. Figure 3 .

[0031] Figure 11 This is a circuit diagram of the signal receiving unit provided in an embodiment of this application.

[0032] Figure 12This is a circuit diagram of the signal transmitting unit provided in an embodiment of this application.

[0033] Figure 13 A schematic diagram of the connection circuit between analog ground and digital ground provided in an embodiment of this application.

[0034] Figure 14 This is a circuit diagram of the AND gate module in the first case.

[0035] Figure 15 This is a circuit diagram of the AND gate module in the second case.

[0036] Figure 16 This is a circuit diagram of the AND gate module in the third case.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1-Power supply unit, 11-Power supply module, 12-Step-down module, 2-Signal receiving unit, 21-Signal receiving module

[0039] 3-Signal transmitting unit, 31-Signal transmitting module, 4-Sensing unit, 5-Control unit, 51-Control module,

[0040] 52 - AND gate module, 6 - Switch unit. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0043] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0044] like Figure 1 As shown, this application embodiment provides a power strip, including a power supply unit 1, a signal receiving unit 2, a signal transmitting unit 3, a sensing unit 4, a control unit 5, and a switch unit 6. The signal receiving unit 2, sensing unit 4, control unit 5, and switch unit 6 are all electrically connected to the power supply unit 1, which provides DC voltage to them. The signal receiving unit 2 is electrically connected to the signal transmitting unit 3 and receives control signals transmitted by the signal transmitting unit 3. The control unit 5 is electrically connected to the signal receiving unit 2 and receives the control signals transmitted by the signal receiving unit 2, generating a first start signal based on the control signals. The sensing unit 4 senses human body signals and generates a second start signal from them. The control unit 5 is electrically connected to the sensing unit 4 and receives the second start signal. The control unit 5 generates a start signal based on the first and second start signals. The switch unit 6 is electrically connected to the control unit 5 and receives the start signal, controlling its own activation based on the start signal.

[0045] Thus, power supply unit 1 provides DC voltage to signal receiving unit 2, sensing unit 4, control unit 5, and switching unit 6. Signal transmitting unit 3 is electrically connected to signal receiving unit 2, and signal receiving unit 2 can receive control signals sent by signal transmitting unit 3. Signal receiving unit 2 is also electrically connected to control unit 5, and can transmit the received control signals to control unit 5, which generates a first start signal based on the control signals.

[0046] The sensing unit 4 is used to sense human body signals and generate a second start signal from these signals. The sensing unit 4 is electrically connected to the control unit 5 to transmit the second start signal to the control unit 5. The control unit 5 can generate a start signal based on the first and second start signals.

[0047] The switch unit 6 is electrically connected to the control unit 5, and can receive a start signal and control itself to start according to the start signal.

[0048] At this point, the power strip provided in this application embodiment can be started.

[0049] As can be seen from the above, the control unit 5 can generate a start signal based on the first start signal and the second start signal.

[0050] In other words, the control unit 5 can only generate a start signal to control the power strip to start after receiving the control signal and the second start signal.

[0051] When the control unit 5 receives only a control signal or only a second start signal, it cannot generate a start signal and therefore cannot control the power strip to start; the power strip remains in the off state.

[0052] In other words, the power strip can only be activated if both the sensing unit 4 senses a human body signal and the signal receiving unit 2 receives the control signal sent by the signal transmitting unit 3.

[0053] Therefore, when people are not using the power strip and the sensing unit 4 does not detect human signals, the power strip is in a closed state. This can avoid the energy waste and safety hazards caused by people forgetting to turn off the power strip when they leave.

[0054] In practice, a power strip typically consists of a separate power strip body and a remote control device. The power strip body is electrically connected to the load and the live wire. When the power strip is activated, the load is connected to the live wire, providing voltage to the load.

[0055] The power supply unit 1, signal receiving unit 2, sensing unit 4, control unit 5, and switch unit 6 are mounted on the power strip body, while the signal transmitting unit 3 is mounted on the remote control.

[0056] In practice, the signal transmitting unit 3 is matched with the signal receiving unit 2. The signal transmitting unit 3 can be controlled to transmit a control signal of a certain frequency, and the signal receiving unit 2 can receive the control signal of that frequency, thereby transmitting the control signal to the signal receiving unit 2.

[0057] When people need to use the power strip, they can transmit a control signal via a remote control. Upon receiving the control signal, the signal receiving unit 2 sends it to the control unit 5. The control unit 5 generates a first start signal based on the control signal. Simultaneously, the distance between the human body and the power strip is within a certain range, ensuring that the sensing unit 4 can detect the human body signal. The sensing unit 4 generates a second start signal from the human body signal and transmits it to the control unit 5. The control unit 5 generates a start signal based on the first and second start signals, thereby controlling the switch unit 6 to start, and ultimately activating the power strip.

[0058] In one possible implementation, see Figure 2 and Figure 3As shown, the power supply unit 1 includes a power supply module 11 and a step-down module 12. The power supply module 11 is electrically connected to an external power source and is used to receive external AC voltage and convert the external AC voltage into DC voltage.

[0059] See Figure 2 As shown, the power module 11 includes six pins, numbered 1 through 6. Pins 1 and 2 are input pins of the power module 11, used to electrically connect the power module 11 to an external AC voltage source. Pins 3 and 4 are capacitor pins, used to connect a capacitor to the power module 11. Pins 5 and 6 are output pins, used to output DC voltage; pin 5 is the negative terminal of the DC voltage, and pin 6 is the positive terminal of the DC voltage source.

[0060] Pin 5 is connected to digital ground.

[0061] Specifically, pin 1 of power module 11 is electrically connected to the live wire L1 of external AC voltage, and pin 2 of power module 11 is electrically connected to the neutral wire N1 of external AC voltage.

[0062] Meanwhile, a first fuse F1 and a third resistor R1 are connected in series between the live wire L1 and pin 1 of the power module 11. The third resistor R1 is a current-limiting resistor to limit the AC voltage flowing into the power module 11, so as to avoid excessive current flowing into the power module 11.

[0063] A first capacitor CX1 is connected between pin 1 and pin 2 of power module 11 to eliminate differential mode interference and protect power module 11.

[0064] A second capacitor C4 is connected between pins 3 and 4 of power module 11 to ensure that power module 11 can output a stable DC voltage when it is working.

[0065] The power supply unit 1 also includes a third capacitor CY1 and a fourth capacitor CY2. One end of the third capacitor CY1 is electrically connected to pin 4 of the power supply module 11, and the other end of the third capacitor CY1 is electrically connected to one end of the fourth capacitor CY2. The other end of the fourth capacitor CY2 forms a connection point with pin 5 of the power supply module 11, which is connected to digital ground. The third capacitor CY1 and the fourth capacitor CY2 serve to isolate the high voltage ground and the low voltage ground.

[0066] The step-down module 12 is electrically connected to the output terminal of the power supply module 11, and is used to receive DC voltage and convert DC voltage into low-voltage DC voltage.

[0067] At this time, the power supply unit 1 can provide DC voltages of different values ​​for use by the multiple modules included in the power strip provided in this application embodiment, thereby expanding the range of module selectivity.

[0068] In practice, power module 11 can use LS03-13B05R3 to convert the input 220V, 50Hz external AC voltage into the DC voltage required by this application. Power module 11 can convert 220V, 50Hz AC voltage into 5V DC voltage and output it. Step-down module 12 receives the 5V DC voltage and converts it into a low-voltage 3.3V DC voltage.

[0069] The sensing unit 4 and the switching unit 6 are both electrically connected to the output terminal of the power module 11 to receive 5V DC voltage.

[0070] Both the signal receiving unit 2 and the control unit 5 are electrically connected to the output terminal of the step-down module 12 to receive a 3.3V low-voltage DC voltage.

[0071] Of course, the magnitude of the DC voltage and the magnitude of the low-voltage DC voltage are only examples here and are not intended as specific limitations. The voltage required by the actual module should be taken into account.

[0072] In specific implementation, the step-down module 12 can use the HT7533 chip, combined with... Figure 2 and Figure 3 As shown, the input pin Vin of the buck module 12 is electrically connected to the output pin of the power supply module 11, and the ground pin GND of the buck module 12 is connected to analog ground. A fifth capacitor C5 is connected between the input pin Vin of the buck module 12 and the ground pin GND. A sixth capacitor C6 and a seventh capacitor C7 are connected between the output pin Vout of the buck module 12 and the ground pin GND, and the sixth capacitor C6 and the seventh capacitor C7 are connected in parallel.

[0073] The fifth capacitor C5, the sixth capacitor C6, and the seventh capacitor C7 are all filter capacitors to reduce the ripple and noise in the low-voltage DC voltage output by the step-down module 12, thereby obtaining a low-ripple, high-precision, and highly stable low-voltage DC voltage.

[0074] In practice, the capacitance and voltage rating of the fifth capacitor C5, the sixth capacitor C6, and the seventh capacitor C7 are not specifically limited here, but shall be determined according to the actual situation.

[0075] For example, the fifth capacitor C5 can be a 104 capacitor with a voltage rating of 25V. The sixth capacitor C6 can be a 104 capacitor with a voltage rating of 25V. The seventh capacitor C7 can have a capacitance of 100uF and a voltage rating of 10V.

[0076] In some embodiments, such as Figure 2As shown, the power supply unit 1 also includes a first filter, which is electrically connected to the output terminal of the power supply module 11. The first filter receives DC voltage and filters it to obtain a filtered DC voltage, which is then used by the power supply module 11 to provide the filtered DC voltage to the sensing unit 4, the switching unit 6, and the buck module 12. This reduces ripple and noise in the DC voltage output by the power supply module 11, resulting in a smoother DC voltage.

[0077] For specific implementation, please refer to Figure 2 As shown, the first filter includes an eighth capacitor C1, a first inductor L6, and a ninth capacitor C2.

[0078] One end of the eighth capacitor C1 is electrically connected to pin 6 of the power module 11, and the other end of the eighth capacitor C1 is electrically connected to pin 5 of the power module 11. Both the eighth capacitor C1 and the other end of the fourth capacitor CY2 are connected to digital ground. One end of the first inductor L6 is electrically connected to one end of the eighth capacitor C1, and the other end of the first inductor L6 is electrically connected to one end of the ninth capacitor C2. The other end of the ninth capacitor C2 is electrically connected to the other end of the eighth capacitor C1.

[0079] In this way, the eighth capacitor C1, the first inductor L6, and the ninth capacitor C2 form a Π-shaped filter, which is used to reduce the ripple and noise in the DC voltage output by the power module 11, resulting in a smoother DC voltage.

[0080] In addition, a first Zener diode (TVS1) and a tenth capacitor (C3) are connected in parallel across the fourth capacitor (CY2). The tenth capacitor (C3) filters the DC voltage output from the power module 11. The first Zener diode (TVS1) is used to protect the circuit and prevent overload.

[0081] In one alternative approach, see Figure 4 As shown, the sensing unit 4 includes a radar module, which is used to sense human body signals and generate a second activation signal 1R2 from the human body signals. The radar module and the second receiving end of the AND gate module 52 included in the sensing unit 4 are electrically connected, which is used to provide the second activation signal 1R2 to the AND gate module 52.

[0082] In practice, the radar module can be a 24GHz millimeter-wave radar module.

[0083] The radar module can use the RKB1125G, which employs Frequency Modulated Continuous Wave (FMCW) modulation. This module uses 24GHz millimeter-wave radar sensing and can detect human signals in real time. It can determine the presence of a human by detecting large or small movements of the body. The main feature of this module is that, in addition to the functions of traditional human detection radar, it can also detect subtle movements such as breathing to determine the presence of a human, and can simultaneously output the distance between the human body and the radar module.

[0084] like Figure 4 As shown, the radar module has four pins, designated as pins 1 to 4. This embodiment primarily utilizes pins 1 and 2 of the radar module. Figure 4 The GND pin shown in the image) and pin 4 ( Figure 4 (See pin 1R2 shown). Among them, pin 1 is the power supply pin of the radar module, pin 2 is the ground pin of the radar module, and pin 4 is the output pin of the radar module.

[0085] Combination Figure 2 and Figure 4 As shown, pin 1 of the radar module is electrically connected to the output of the power supply module 11, which provides a 5V DC voltage to the radar module.

[0086] After the radar module detects a human signal, it generates a second start signal 1R2 and transmits the second start signal 1R2 to the control unit 5 through pin 4.

[0087] In one possible implementation, the control unit 5 includes a control module 51 and an AND gate module 52. The control module 51 is electrically connected to the signal receiving unit 2 and is used to receive control signals. The control module 51 generates a first start signal RL ON1 based on the control signals.

[0088] In specific implementation, combined with Figure 2 , Figure 3 and Figure 5 As shown, the control module 51 can be an HS16F3211 chip.

[0089] The control module 51 has 14 pins, designated as pins 1 to 14. This embodiment primarily utilizes pin 1 of the control module 51. Figure 5 The PA0 pin shown in the image), pin 2 ( Figure 5 Pin PB7 and pin 4 are shown in the image. Figure 5 The VDD pin shown in the image), pin 6 ( Figure 5Pin PB4 and pin 9 are shown in the image. Figure 5 Pin PB1 shown), pin 11 ( Figure 5 The VSS pin shown in the image) and pin 12 ( Figure 5 (PA3 pin shown in the image).

[0090] In this configuration, pin 1 of control module 51 is the enable signal receiving pin, pin 2 of control module 51 is the signal input pin, pin 4 of control module 51 is the power supply pin, and pin 11 of control module 51 is the ground pin. Pin 12 of control module 51 is the output pin, and the first start signal is output through pin 12 of control module 51.

[0091] Pin 4 of the control module 51 is electrically connected to the output of the step-down module 12, which provides a 3.3V voltage to the control module 51.

[0092] The AND gate module 52 has 5 pins, designated as pins 1 through 5. Pin 1 of the AND gate module 52 (… Figure 6 Pin A shown in the diagram is the first receiving pin, and pin 2 of the AND gate module 52 ( Figure 6 Pin B shown in the diagram is the second receiving pin, and is connected to pin 3 of gate module 52. Figure 6 The GND pin shown is the ground pin, and pin 4 of gate module 52 ( Figure 6 The Y pin shown is the signal output pin, and pin 5 of the AND gate module 52 ( Figure 6 The VCC pin shown is the power supply pin.

[0093] Pin 5 of AND gate module 52 is electrically connected to the output of buck module 12, which provides 3.3V to AND gate module 52.

[0094] Combination Figure 5 and Figure 6 As shown, the first receiving terminal A pin of AND gate module 52 is electrically connected to the output terminal of control module 51, i.e., pin 12 of control module 51. AND gate module 52 is used to receive the first start signal RL ON1.

[0095] The second receiving pin B of AND gate module 52 is electrically connected to sensing unit 4 and is used to receive the second start signal 1R2.

[0096] Combination Figure 1 , Figure 4 and Figure 6 As shown, pin 4 of the radar module is electrically connected to pin B of the second receiver of the AND gate module 52. The AND gate module 52 is used to receive the second start signal 1R2 transmitted by the radar module.

[0097] Combination Figure 1 , Figure 6 and Figure 7 As shown, AND gate module 52 generates a start signal CONT1 based on the first start signal RL ON1 and the second start signal 1R2, and outputs it through the Y pin. Switch unit 6 is electrically connected to the output Y pin of AND gate module 52 to receive the start signal CONT1.

[0098] After receiving the start signal CONT1, the switch unit 6 controls itself to start, thereby putting the power strip into the start state.

[0099] In one example, the control unit 5 also includes a first button K2 and a first resistor R3, such as Figure 8 As shown.

[0100] Combination Figure 3 , Figure 5 and Figure 8 As shown, one end of the first button K2 is electrically connected to analog ground, and the other end of the first button K2 is electrically connected to pin 9, PB1, of the control module 51. One end of the first resistor R3 is electrically connected to the power supply unit 1, and the other end of the first resistor R3 is electrically connected to the other end of the first button K2.

[0101] Specifically, the first resistor R3 is a pull-up resistor. One end of the first resistor R3 is electrically connected to the output terminal of the buck module 12, and the buck module 12 provides a 3.3V low-voltage DC voltage to the first resistor R3.

[0102] In addition, such as Figure 5 and Figure 9 As shown, the control unit 5 also includes a first light-emitting diode (LED2) and a second resistor R8. The anode of the first LED2 is electrically connected to pin 6 of the control module 51. The cathode of the first LED2 is electrically connected to one end of the second resistor R8, and the other end of the second resistor R8 is connected to analog ground.

[0103] The second resistor R8 is a current-limiting resistor, and the first light-emitting diode LED2 can emit green light when it is turned on.

[0104] like Figure 10 As shown, the control unit 5 also includes an eleventh capacitor C8, which is a filter capacitor. One end of the eleventh capacitor C8 is electrically connected to the output terminal of the step-down module 12, which provides a 3.3V voltage to the eleventh capacitor C8. The other end of the eleventh capacitor C8 is connected to analog ground.

[0105] In specific implementation, the control module 51 can use the HS16F3211 microcontroller. The HS16F3211 microcontroller is an 8-bit microcontroller manufactured using low-power, high-speed complementary metal-oxide-semiconductor (CMOS) technology. It has built-in 2K*16bit memory (FLASH), 128 bytes of electrically erasable programmable read-only memory (EEPROM), and 128 bytes of static random access memory (SRAM). It also includes three 12-bit pulse width modulation (PWM) modules and three 8-bit PWM modules.

[0106] In practice, pin 9 (PB1) of control module 51 is active low. When the first button K2 is pressed, because one end of the first button K2 is connected to analog ground, pin 9 (PB1) of control module 51 is at a low level. Control module 51 detects the low-level signal of the first button K2 being pressed and processes the command signal.

[0107] At this point, there are two modes:

[0108] In the first mode, when the first button K2 is pressed for more than or equal to three seconds, the control module 51 processes the instruction and outputs a PWM waveform from pin 6 of the control module 51, causing the first light-emitting diode LED2 indicator to alternately light up and off. At the same time, the signal receiving unit 2 enters the pairing state and waits for the signal transmitting unit 3 to transmit the control signal so that the signal receiving unit 2 and the signal transmitting unit 3 can be successfully paired.

[0109] In the second mode, when the first button K2 is clicked, pin 12 of control module 51 outputs a first start signal RLON1, which is transmitted to pin A of the first receiver of AND gate module 52. Simultaneously, the level toggle signal on pin 6 of control module 51 controls the on / off state of the first light-emitting diode LED2, serving as an indicator of whether the switching unit 6 is on or off. That is, when AND gate module 52 receives the first start signal RLON1 and the second start signal 1R2, it generates a start signal CONT1, controlling the switching unit 6 to start. Furthermore, when the power strip is on, the first light-emitting diode LED2 emits green light. When the power strip is off, the first light-emitting diode LED2 does not emit light. The setting of the first light-emitting diode LED2 makes it easy for users to determine whether the power strip is on or off.

[0110] In practice, pins 12 and 6 of control module 51, as well as pins A, B, and Y of AND gate module 52, are all active high.

[0111] In a specific implementation, a fourth resistor R002 is provided between pin A of AND gate module 52 and pin 12 of control module 51, and a fifth resistor R003 is connected between pin B of AND gate module 52 and pin 4 of radar module.

[0112] Among them, the fourth resistor R002 and the fifth resistor R003 can both be 0 ohms resistors. The resistance of the first resistor R3 can be 330K, the resistance of the second resistor R8 can be 150 ohms, the eleventh capacitor C8 can be a 106 capacitor, and the voltage rating of the eleventh capacitor C8 can be 16V. Of course, this is just an example and is not a specific limitation.

[0113] As an optional configuration, the signal receiving unit 2 includes a signal receiving antenna ANT1 and a signal receiving module 21. The signal receiving antenna ANT1 is electrically connected to the signal transmitting unit 3 and is used to receive control signals. The output terminal STBY pin of the signal receiving module 21 is electrically connected to the control unit 5 and is used to transmit control signals to the control unit 5.

[0114] like Figure 11 As shown, the signal receiving module 21 has 8 pins, namely pin 1 to pin 8 of the signal receiving module 21.

[0115] Among them, pin 1 of the signal receiving module 21 ( Figure 11 The GND pin shown is used to connect to analog ground. Pin 2 of the signal receiving module 21 (… Figure 11 The ANT pin shown is the signal input pin. Pin 3 of the signal receiving module 21 (… Figure 11 The VDDRF pin shown is the power supply pin. Pin 5 of the signal receiving module 21 (… Figure 11 The DO pin shown is a digital output pin. Pin 6 of the signal receiving module 21 (… Figure 11 The STBY pin shown is the standby state control pin.

[0116] Combination Figure 1 , Figure 3 , Figure 5 , Figure 6 and Figure 11 As shown, pin 3 of the signal receiving module 21 is electrically connected to the output terminal of the step-down module 12, which provides a 3.3V DC voltage to the signal receiving module 21.

[0117] Pin 2 of signal receiving module 21 is electrically connected to signal receiving antenna ANT1 for receiving control signals. Pin 6 of signal receiving module 21 is electrically connected to pin 1 of control module 51 for transmitting an enable signal to start control module 51. Pin 5 of signal receiving module 21 is electrically connected to pin 2 of control module 51 for transmitting control signals to control module 51. After generating a first start signal RL ON1 from the control signal, control module 51 transmits the first start signal RL ON1 to the first receiving pin A of AND gate module 52 via pin 12 of control module 51.

[0118] Specifically, the signal receiving module 21 can use the HS0829L RF chip. The HS0829L RF chip realizes data input and data output, and integrates a low-noise amplifier, mixer, intermediate frequency amplifier, bandpass filter, peak detection circuit, low-pass filter and comparator, etc.

[0119] The signal receiving unit 2 also includes a twelfth capacitor C11, a thirteenth capacitor C10, a fourteenth capacitor C12, a fifteenth capacitor C13, a sixteenth capacitor C9, a sixth resistor R7, a seventh resistor R6, an eighth resistor R5, a ninth resistor R4, a second inductor L2, a third inductor L3, and a first crystal oscillator Y1.

[0120] One end of the second inductor L2 is electrically connected to the signal receiving antenna ANT1, and the other end of the second inductor L2 is connected to analog ground. The inductance value of the second inductor L2 can be 39nH (nanohenry).

[0121] One end of the thirteenth capacitor C10 is electrically connected to the signal receiving antenna ANT1, and the other end of the thirteenth capacitor C10 is connected to analog ground. The capacitance and voltage rating of the thirteenth capacitor C10 can be 35pF (picofarad) and 25V, respectively.

[0122] One end of the twelfth capacitor C11 is electrically connected to the signal receiving antenna ANT1, and the other end of the twelfth capacitor C11 is electrically connected to pin 2 of the signal receiving module 21. The capacitance and voltage rating of the twelfth capacitor C11 can be 3pF and 25V, respectively.

[0123] One end of the third inductor L3 is electrically connected to the other end of the twelfth capacitor C11, and the other end of the third inductor L3 is connected to analog ground. The inductance value of the third inductor L3 can be 27nH (nanohenry).

[0124] One end of the fourteenth capacitor C12 is electrically connected to the output terminal of the step-down module 12, and the other end of the fourteenth capacitor C12 is connected to analog ground. The capacitance and voltage rating of the fourteenth capacitor C12 can be 100nF (nanofarad) and 25V, respectively.

[0125] One end of the sixth resistor R7 is electrically connected to the output terminal of the step-down module 12, and the other end of the sixth resistor R7 is electrically connected to pin 3 of the signal receiving module 21. The resistance value of the sixth resistor R7 can be 47 ohms.

[0126] One end of the fifteenth capacitor C13 is electrically connected to pin 4 of the signal receiving module 21, and the other end of the fifteenth capacitor C13 is connected to analog ground. The capacitance value of the fifteenth capacitor C13 can be 47μF (microfarads).

[0127] One end of the seventh resistor R6 is electrically connected to pin 5 (DO pin) of the signal receiving module 21, and the other end of the seventh resistor R6 is connected to analog ground. The resistance value of the seventh resistor R6 can be 1.2MΩ.

[0128] One end of the eighth resistor R5 is electrically connected to pin 5 (DO pin) of the signal receiving module 21, and the other end of the eighth resistor R5 is electrically connected to pin 2 of the control module 51. The resistance value of the eighth resistor R5 can be 1KΩ.

[0129] One end of the ninth resistor R4 is electrically connected to pin 6 (STBY pin) of the signal receiving module 21, and the other end of the ninth resistor R4 is electrically connected to pin 1 of the control module 51. The resistance value of the ninth resistor R4 can be 1KΩ.

[0130] One end of the sixteenth capacitor C9 is electrically connected to pin 7 of the signal receiving module 21, and the other end of the sixteenth capacitor C9 is connected to analog ground. The sixteenth capacitor C9 is an NC capacitor.

[0131] One end of the first crystal oscillator Y1 is electrically connected to pin 8 of the signal receiving module 21, and the other end of the first crystal oscillator Y1 is connected to analog ground. The oscillation frequency of the first crystal oscillator Y1 can be 13.52127MHz.

[0132] It should be noted that the second inductor L2, the thirteenth capacitor C10, the twelfth capacitor C11, and the third inductor L3 filter the control signal. The sixth resistor R7 and the fourteenth capacitor C12 filter the current flowing into the signal receiving module 21. The fifteenth capacitor C13 acts as a decoupling capacitor.

[0133] In one example, such as Figure 12As shown, the signal transmitting unit 3 includes a battery BAT, a second button K3, a signal transmitting module 31, and a signal transmitting antenna ANT2. The negative terminal of the battery BAT is connected to ground. One end of the second button K3 is connected to ground, and the positive terminal of the battery BAT is electrically connected to the other end of the second button K3, forming a first connection point. The first connection point is electrically connected to pin 5 (S0 input pin) of the signal transmitting module 31. When the second button K3 is pressed, the signal transmitting module 31 generates a control signal. The signal transmitting module 31 is also electrically connected to the positive terminal of the battery BAT, which powers the signal transmitting module 31. Pin 1 (output terminal of the signal transmitting module 31) Figure 12 The PAOUT pin shown is electrically connected to the signal transmitting antenna ANT2 and is used to provide control signals to the signal transmitting antenna ANT2.

[0134] Thus, the signal transmitting unit 3 controls the signal transmitting module 31 to send a control signal via the second button K3, thereby enabling the signal receiving module 21 to receive the control signal.

[0135] Specifically, the S0 input pin of the signal transmitting module 31 is active low. When the second button K3 is clicked, this signal is transmitted to the S0 input pin of the signal transmitting module 31. The signal transmitting module 31 processes the signal and causes pin 1 of the signal transmitting module 31 to output a control signal.

[0136] For example, the signal transmitting module 31 can be a wireless transmitting chip HS2245PT. The battery can be a 3V CR2032 button cell battery.

[0137] The frequency of the control signal sent by the signal transmitting module 31 is not specifically limited here. In the embodiment provided in this application, the frequency of the control signal sent by the signal transmitting module 31 is 433MHz.

[0138] Pin 2 of signal transmission module 31 ( Figure 12 The GND pin shown is connected to digital ground.

[0139] like Figure 12 As shown, the signal transmitting unit 3 also includes a second light-emitting diode LED1 and a tenth resistor R9.

[0140] The anode of the second LED1 is electrically connected to the positive terminal of the battery BAT, the cathode of the second LED1 is electrically connected to one end of the tenth resistor R9, and the other end of the tenth resistor R9 is electrically connected to pin 5, i.e., the S0 input pin, of the signal transmission module 31.

[0141] When the second button K3 is pressed, the second LED1 lights up; when the second button K3 is not pressed, the second LED1 does not light up.

[0142] The second LED, LED1, can emit green light, and the tenth resistor, R9, can have a resistance of 150Ω.

[0143] In addition, such as Figure 12 As shown, the signal transmitting unit 3 also includes a seventeenth capacitor C14, an eighteenth capacitor C15, a nineteenth capacitor C16, a fourth inductor L4, a fifth inductor L5, and a second crystal oscillator Y2.

[0144] The seventeenth capacitor C14, the fifth inductor L5, the eighteenth capacitor C15, the fourth inductor L4, and the nineteenth capacitor C16 filter the high-frequency output signal.

[0145] One end of the seventeenth capacitor C14 is electrically connected to one end of the signal transmitting antenna ANT2, and the other end of the seventeenth capacitor C14 is connected to digital ground.

[0146] One end of the fifth inductor L5 is electrically connected to one end of the signal transmitting antenna ANT2, and the other end of the fifth inductor L5 is electrically connected to one end of the eighteenth capacitor C15. The other end of the eighteenth capacitor C15 is electrically connected to pin 1 of the signal transmitting module 31. The inductance value of the fifth inductor L5 can be 820nH (nanohenry). The capacitance value of the eighteenth capacitor C15 can be 2pF (picofarad).

[0147] One end of the fourth inductor L4 is electrically connected to one end of the battery BAT, and the other end of the fourth inductor L4 is electrically connected to pin 1 of the signal transmitting module 31. The inductance value of the fourth inductor L4 can be 820nH (nanohenry).

[0148] One end of the nineteenth capacitor C16 is electrically connected to pin 3 of the signal transmitting module 31, and the other end of the nineteenth capacitor C16 is connected to digital ground. The capacitance value of the nineteenth capacitor C16 can be 100nF (nanofarad).

[0149] One end of the second crystal oscillator Y2 is connected to digital ground, and the other end of the second crystal oscillator Y2 is electrically connected to pin 4 of the signal transmission module 31. The oscillation frequency of the second crystal oscillator Y2 can be 13.56MHz.

[0150] In one possible implementation, such as Figure 7 As shown, the switching unit 6 includes a transistor Q1 and a relay K1. Combined with... Figure 2 , Figure 6 and Figure 7As shown, the base of transistor Q1 is electrically connected to the output pin Y of AND gate module 52 to receive the start signal CONT1, and the emitter of transistor Q1 is connected to digital ground. Relay K1 is electrically connected to power supply unit 1 to receive DC voltage. Pin 2 of relay K1 is electrically connected to power supply module 11, which provides a 5V DC voltage to the relay. The collector of transistor Q1 is electrically connected to input pin 1 of relay K1. Relay K1 is also electrically connected to the external AC voltage live wire L and the load LOUT1.

[0151] Thus, when transistor Q1 receives the start signal transmitted by AND gate module 52, transistor Q1 turns on, which can make the relay energize, connect the load LOUT1 to the live wire L, and start the power strip.

[0152] In specific implementation, the switching unit 6 also includes an eleventh resistor R2 and a diode D1. One end of the eleventh resistor R2 is electrically connected to the Y pin of the AND gate module 52, and the other end of the eleventh resistor R2 is electrically connected to the base of the transistor Q1. The eleventh resistor R2 is a current-limiting resistor used to prevent excessive current from flowing into the transistor. The anode of the diode D1 is electrically connected to the collector of the transistor Q1, and the cathode of the diode D1 is electrically connected to pin 2 of the relay K1. Both are connected to the power supply module 11 to receive a 5V DC voltage. The diode D1 is used to protect the relay coil.

[0153] It should be noted that, as Figure 13 As shown, in the embodiment provided in this application, the twelfth resistor R001 isolates the digital ground line and the analog ground line, serving as a common ground. The twelfth resistor R001 can be a 0Ω resistor.

[0154] For ease of understanding, the working principle of the power strip provided in the embodiments of this application is described below in one possible implementation, which is not intended to be a specific limitation.

[0155] In the initial state, in order to pair the signal transmitting unit 3 and the signal receiving unit 2, firstly, the first button K2 is pressed for a duration of three seconds or more. The control module 51 processes the instruction and outputs a PWM waveform from pin 6 of the control module 51, causing the first light-emitting diode LED2 indicator to alternately light up and off. At the same time, the signal receiving unit 2 enters the pairing state and waits for the signal transmitting unit 3 to transmit the control signal.

[0156] In actual use, first click the first button K2.

[0157] When people are within a certain distance from the power strip, the radar module can sense the human body signal, generate a second start signal 1R2 from the human body signal, and transmit the second start signal 1R2 to the second receiver pin B of the AND gate module 52, so that the B pin of the AND gate module 52 is at a high level.

[0158] Clicking the second button K3 causes the signal transmitting module 31 to generate a control signal. The signal receiving antenna ANT1 is matched with the signal transmitting antenna ANT2, and the control signal is transmitted from the signal transmitting antenna ANT2 to the signal receiving antenna ANT1. Further, the control signal is transmitted to the signal receiving module 21. The data output pin 5 of the signal receiving module 21 is electrically connected to the signal receiving pin of the control module 51, thereby transmitting the control signal to the control module 51. The control module 51 generates a first start signal RL ON1 from the control signal. Since the signal output pin of the control module 51 is electrically connected to the first receiving pin A of the AND gate module 52, the control module 51 can transmit the first start signal RL ON1 to the AND gate module 52, causing the first receiving pin A of the AND gate module 52 to be at a high level.

[0159] Thus, both the first receiving pin A and the second receiving pin B of AND gate module 52 are at a high level. AND gate module 52 generates a start signal CONT1 based on the first start signal RL ON1 and the second start signal 1R2, and outputs it through the signal output pin Y. At this time, the signal output pin Y is at a high level. Since the signal output pin Y of AND gate module 52 is electrically connected to the base of transistor Q1, it can control transistor Q1 to conduct. Furthermore, relay K1 is energized, and the load terminal LOUT1 is connected to the live wire L.

[0160] At this moment, the first LED indicator light, LED2, turns green.

[0161] In summary, the first start signal RL ON1 and the second start signal 1R2 serve as the two input signals of the AND gate module 52. Only when both signal receiving pins A and B of the AND gate module 52 are at a high level will the signal output pin Y of the AND gate module 52 generate a high-level start signal CONT1, turning on the transistor Q1 and thus controlling the relay K1 to engage, connecting the load terminal LOUT1 to the live wire L. Otherwise, the transistor Q1 is turned off, the relay K1 is turned off, and the load terminal LOUT1 is disconnected from the live wire L.

[0162] In addition to the above, in actual circumstances, see Figures 14 to 16 As shown, two pull-up resistors, namely the thirteenth resistor R004 and the fourteenth resistor R005, can also be set on the circuit board of the AND gate module 52. One end of the thirteenth resistor R004 and the fourteenth resistor R005 are connected together and connected to the output terminal of the buck module 12. The buck module 12 provides a 3.3V DC voltage to the thirteenth resistor R004 and the fourteenth resistor R005. The other end of the thirteenth resistor R004 is electrically connected to the second receiver pin B of the AND gate module 52, and the other end of the fourteenth resistor R005 is electrically connected to the first receiver pin A of the AND gate module 52.

[0163] Among them, the thirteenth resistor R004 and the fourteenth resistor R005 can both be 0Ω resistors.

[0164] In actual use of power strips, there are three scenarios:

[0165] In the first scenario, both the thirteenth resistor R004 and the fourteenth resistor R005 are non-NC resistors. This type of connector is the connector provided in the embodiments of this application. Figure 14 As shown, the AND gate module 52 needs to simultaneously receive the human body signal sensed by the sensing unit 4 and the control signal emitted by the signal transmitting unit 3. At this time, the first receiving pin A of the AND gate module 52 can receive the first start signal, and the first receiving pin A of the AND gate module 52 is at a high level. The second receiving pin B of the AND gate module 52 can receive the second start signal, and the second receiving pin B of the AND gate module 52 is at a high level. In this way, the relay K1 can be turned on to start the power strip.

[0166] In the second case, both the fifth resistor R003 and the fourteenth resistor R005 are non-NC resistors, such as... Figure 15 As shown. When the power strip needs to be activated, the signal transmitting unit 3 can transmit a control signal. The first receiving pin A of the AND gate module 52 can receive the first activation signal, making it high. The second receiving pin B of the AND gate module 52 is electrically connected to the output of the step-down module 12 via the thirteenth resistor R004, thus making it high. This allows the relay K1 to be turned on, activating the power strip.

[0167] When the radar module is not working, the second receiver pin B of the AND gate module 52 is made high by connecting the thirteenth resistor R004 (3.3V). At this time, the signal transmitting unit 3 transmits a control signal to control the relay's on and off states.

[0168] In the third case, both the fourth resistor R002 and the thirteenth resistor R004 are non-NC resistors. Figure 16 As shown. When the power strip needs to be activated, the sensing unit 4 can be controlled to sense a human body signal. The second receiver pin B of the AND gate module 52 can receive the second activation signal, and the second receiver pin B of the AND gate module 52 is at a high level. The first receiver pin A of the AND gate module 52 is electrically connected to the output of the step-down module 12 via the fourteenth resistor R005, making the first receiver pin A of the AND gate module 52 high. Thus, the relay K1 can be activated, starting the power strip.

[0169] When signal transmitting unit 3 is not working, the first receiving pin A of AND gate module 52 is made high by connecting the fourteenth resistor R005 (3.3V). At this time, the human body signal is sensed by sensing unit 4 to control the conduction and deactivation of the relay.

[0170] As can be seen from the above, when the sensing unit 4 or the wireless transmitting unit fails to work properly, we can repair it by resoldering the resistor or removing the resistor, so as to reduce the cost of using the power strip.

[0171] The features described in the various embodiments of this specification can be substituted for or combined with each other. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for system or system embodiments, since they are basically similar to method embodiments, the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments. The systems and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0172] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0173] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0174] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A power strip, characterized in that, It includes a power supply unit, a signal receiving unit, a signal transmitting unit, a sensing unit, a control unit, and a switching unit; The signal receiving unit, the sensing unit, the control unit, and the switching unit are all electrically connected to the power supply unit, which provides DC voltage to the signal receiving unit, the sensing unit, the control unit, and the switching unit. The signal receiving unit is electrically connected to the signal transmitting unit and is used to receive control signals sent by the signal transmitting unit. The control unit is electrically connected to the signal receiving unit and is used to receive the control signal transmitted by the signal receiving unit and generate a first start signal according to the control signal. The sensing unit is used to sense human body signals and generate a second start signal from the human body signals; the control unit is electrically connected to the sensing unit and is used to receive the second start signal; the control unit generates a start signal based on the first start signal and the second start signal. The switching unit is electrically connected to the control unit and is used to receive the start signal and control itself to start according to the start signal.

2. The power strip according to claim 1, characterized in that, The power supply unit includes: A power module is electrically connected to an external power source to receive external AC voltage and convert it into DC voltage; the sensing unit and the switching unit are both electrically connected to the output terminal of the power module to receive the DC voltage. The step-down module is electrically connected to the output terminal of the power supply module and is used to receive the DC voltage and convert the DC voltage into a low-voltage DC voltage; the signal receiving unit and the control unit are both electrically connected to the output terminal of the step-down module and are used to receive the low-voltage DC voltage.

3. The power strip according to claim 2, characterized in that, The power supply unit further includes a first filter, which is electrically connected to the output terminal of the power supply module. The first filter is used to receive the DC voltage and filter the DC voltage to obtain a filtered DC voltage, which is used to enable the power supply module to provide the filtered DC voltage to the sensing unit, the switching unit and the buck module.

4. The power strip according to claim 1, characterized in that, The control unit includes: A control module, electrically connected to the signal receiving unit, is used to receive the control signal and generate a first start signal based on the control signal; An AND gate module is provided, wherein the first receiving end of the AND gate module is electrically connected to the output end of the control module for receiving the first start signal; the second receiving end of the AND gate module is electrically connected to the sensing unit for receiving the second start signal; the AND gate module generates the start signal based on the first start signal and the second start signal; and the switching unit is electrically connected to the output end of the AND gate module for receiving the start signal.

5. The power strip according to claim 4, characterized in that, The control unit further includes: A first button, one end of which is connected to ground; the other end of which is electrically connected to the control module. A first resistor, one end of which is electrically connected to the power supply unit, and the other end of which is electrically connected to the other end of the first button.

6. The power strip according to claim 5, characterized in that, The control unit further includes: A first light-emitting diode, the anode of which is electrically connected to the control module; The second resistor is connected to one end of the cathode of the first light-emitting diode and to ground.

7. The power strip according to claim 1, characterized in that, The signal receiving unit includes: A signal receiving antenna, electrically connected to the signal transmitting unit, is used to receive the control signal; A signal receiving module, electrically connected to the signal receiving antenna, is used to receive the control signal; the output terminal of the signal receiving module is electrically connected to the control unit, and is used to transmit the control signal to the control unit.

8. The power strip according to claim 1, characterized in that, The signal transmitting unit includes: A battery, the negative terminal of which is connected to ground; The second button has one end connected to ground; the positive terminal of the battery is electrically connected to the other end of the second button, forming a first connection point. The signal transmitting module has a first connection point electrically connected to its input terminal; when the second button is pressed, the signal transmitting module generates the control signal; the signal transmitting module is also electrically connected to the positive terminal of the battery, which powers the signal transmitting module. A signal transmitting antenna is provided, with the output terminal of the signal transmitting module electrically connected to the signal transmitting antenna for providing the control signal to the signal transmitting antenna.

9. The power strip according to claim 4, characterized in that, The sensing unit includes a radar module, which is used to sense human body signals and generate the second activation signal from the human body signals; the radar module is electrically connected to the second receiving end of the AND gate module, and is used to provide the second activation signal to the AND gate module.

10. The power strip according to claim 4, characterized in that, The switching unit includes: The transistor has its base electrically connected to the output of the AND gate module to receive the start signal; the transistor's emitter is electrically connected to ground. The relay is electrically connected to the power supply unit and is used to receive the DC voltage; the collector of the transistor is electrically connected to the input terminal of the relay; the relay is also electrically connected to an external AC voltage and a load.

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