Self-locking switch control system, control method and beacon machine

Abstract

This invention provides a self-locking power-on / off control system, control method, and beacon. The control system includes a power module, a button module, a self-locking circuit, and a control module. The button module controls the self-locking circuit to conduct for a first preset time, so that the power module supplies power to the control module for the first preset time, and sends a first status signal to the control module based on the self-locking circuit. The control module sends a first control signal to the self-locking circuit based on the first status signal, and the self-locking circuit conducts based on the first control signal, so that the power module continuously supplies power to the control module after the first preset time. This invention solves the problem of accidental operation in existing handheld beacon devices.

Description

Technical Field

[0001] This invention relates to the field of wireless communication technology, and more specifically, to a self-locking power on / off control system, control method, and beacon unit. Background Technology

[0002] A beacon receiver is an industrial-grade technical equipment that achieves target tracking and position feedback through electrical, optical, or acoustic signals. Its core functions include signal demodulation and antenna control in satellite communications, simulating isolated targets and extending the effective range in radar systems using store-and-forward technology, and supporting navigation and positioning for multiple systems such as GPS, BeiDou, and GLONASS. The beacon receiver is adaptable to a wide temperature range of -40℃ to 85℃, employs real-time microwave positioning technology for aircraft recovery, and achieves a 100% recovery success rate in marine instrument salvage through its low-power design.

[0003] In reality, special forces and geological prospectors all need to carry beacons with positioning capabilities to send signals (such as location signals) to the outside world at critical moments. Among the many types of beacons, handheld beacons have become a popular choice for modern beacons due to their advantages such as light weight, small size, one-handed operation, and portability. However, as handheld beacons become smaller and smaller, they often come at the cost of battery life. But the beacon antenna in a handheld beacon consumes a lot of power to transmit signals. Therefore, it is necessary to strictly control the power consumption of handheld beacons to extend their usage time.

[0004] There are two main existing solutions for controlling the power consumption of handheld beacon transmitters: The first method involves using a power management circuit to keep the handheld beacon in standby mode during normal use, and triggering signal transmission via a mechanical button during actual use. The second method involves using a motion sensor (such as an accelerometer) built into the handheld beacon to determine the user's movement status in real time, automatically activating the handheld beacon based on the user's movement status, and automatically transmitting the corresponding signal.

[0005] However, the first solution relies solely on a single physical button, lacking complex pressing logic or a self-locking function. This makes it prone to accidental activation during transport or compression of the handheld beacon, resulting in erroneous signals, wasted power, or even false alarms. The second solution, on the other hand, relies too heavily on motion sensors. However, motion sensors are susceptible to interference from environmental vibrations (such as vehicle bumps), leading to unintentional triggering and accidental activation. Furthermore, its power consumption is higher than the first solution.

[0006] As can be seen from the two existing solutions mentioned above, accidental operation is still unavoidable for handheld beacon units, and the continuous wear and tear caused by accidental operation will seriously affect the practicality and reliability of handheld beacon units; therefore, there is an urgent need for a solution that can effectively avoid accidental operation of handheld beacon units. Summary of the Invention

[0007] In view of the above problems, the purpose of this invention is to provide a self-locking power on / off control system, control method and beacon to solve the problem of accidental operation of existing handheld beacon.

[0008] The self-locking power on / off control system provided by this invention includes a power module, a button module, a self-locking circuit, and a control module; wherein, The button module is used to control the self-locking circuit to conduct for a first preset time, so that the power module supplies power to the control module for a first preset time, and sends a first status signal to the control module based on the self-locking circuit; The control module is used to send a first control signal to the self-locking circuit based on the first status signal. The self-locking circuit is turned on based on the first control signal so that the power module continuously supplies power to the control module after the first preset time.

[0009] In addition, an alternative approach is that, during the process of the power module continuously supplying power to the control module after the first preset time, the button module is also used to control the self-locking circuit to conduct for a second preset time, and send a second status signal to the control module based on the self-locking circuit. The control module is used to send a second control signal to the self-locking circuit based on the second status signal. The self-locking circuit disconnects based on the second control signal, so that the power module disconnects the power supply to the control module.

[0010] Alternatively, the self-locking circuit may include a MOSFET and a transistor, a power input terminal, a power output terminal, a status output terminal, and a control input terminal; wherein the source of the MOSFET is connected to the power module through the power input terminal, the drain of the MOSFET is connected to the control module through the power output terminal, the status output terminal is used to send the first status signal and the second status signal to the control module, and the control input terminal is used to receive the first control signal and the second control signal; and... A first resistor and a sixth resistor are connected in sequence between the source of the MOS transistor and the collector of the transistor; a second resistor, a ninth resistor, and a tenth resistor are connected in sequence between the gate of the MOS transistor and ground; the status output terminal is connected between the second resistor and the ninth resistor; the base of the transistor is connected to the control input terminal, and the emitter of the transistor is grounded; the buttons of the button module are connected in parallel across the tenth resistor.

[0011] Alternatively, a first node can be formed between the first resistor and the sixth resistor, and a second node can be formed between the second resistor and the ninth resistor; wherein, The first node and the second node are at the same potential.

[0012] Alternatively, a third node can be formed between the second node and the ninth resistor; wherein, A first diode is disposed between the third node and the status output terminal, and a second diode is disposed between the second node and the third node. The positive terminal of the first diode is connected to the status output terminal, and the positive terminal of the second diode is connected to the second resistor.

[0013] Alternatively, a fifth resistor can be connected between the status output terminal and the power input terminal; and, A third resistor is provided between the power output terminal and ground.

[0014] Alternatively, a seventh resistor may be provided between the base of the transistor and the control input terminal. An eighth resistor is connected between the base and emitter of the transistor.

[0015] Alternatively, a first capacitor can be connected between the power input terminal and the first node.

[0016] On the other hand, the present invention also provides a control method for the aforementioned self-locking power on / off system, the control method comprising: The button module controls the self-locking circuit to conduct for a first preset time, so that the power module supplies power to the control module for a first preset time, and sends a first status signal to the control module based on the self-locking circuit; The control module is used to send a first control signal to the self-locking circuit based on the first status signal. The self-locking circuit is turned on based on the first control signal so that the power module continuously supplies power to the control module after the first preset time. During the process of the power module continuously supplying power to the control module after the first preset time, the button module controls the self-locking circuit to conduct for a second preset time, and sends a second status signal to the control module based on the self-locking circuit; The control module is used to send a second control signal to the self-locking circuit based on the second status signal. The self-locking circuit disconnects based on the second control signal, so that the power module disconnects the power supply to the control module.

[0017] In addition, the present invention also provides a beacon unit that includes the aforementioned self-locking on / off control system.

[0018] Compared with the prior art, the self-locking power on / off control system, control method, and beacon provided by the present invention have the following advantages: By configuring modules such as a power module, button module, self-locking circuit, and control module, the required power-on and power-off operations can be achieved. The self-locking power-on / off control system provided by this invention disconnects the downstream module (such as the control module) from the power module after power-off. Only the semiconductor devices in the self-locking circuit experience extremely low losses due to leakage current inherent in their design process, with leakage current only in the nA range. Furthermore, in actual use, specific pressing actions (such as continuously pressing the button for a period of time) achieve anti-accidental touch self-locking power-on / off control, solving problems such as frequent accidental touches and high continuous power consumption during power-off in existing technologies. This significantly improves the reliability, battery life, and practicality of the beacon, making it suitable for applications requiring high equipment stability, such as field rescue and maritime search and rescue.

[0019] To achieve the foregoing and related objectives, one or more aspects of the invention include the features which will be described in detail below and specifically pointed out in the claims. The following description and accompanying drawings illustrate certain exemplary aspects of the invention. However, these aspects indicate only a few of the various ways in which the principles of the invention can be used. Furthermore, the invention is intended to include all such aspects and their equivalents. Attached Figure Description

[0020] Other objects and results of the invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings and the contents of the claims, and with a more complete understanding of the invention. In the drawings: Figure 1 This is a structural diagram of a self-locking on / off control system provided according to an embodiment of the present invention; Figure 2 The circuit diagram of the self-locking circuit provided according to an embodiment of the present invention is shown below; Figure 3 A flowchart of a self-locking power-on / off control method provided according to an embodiment of the present invention; Figure reference numerals: Power input terminal VIN, Power output terminal VOUT, Control input terminal CTRL, Status output terminal STATE, First resistor R1, Second resistor R2, Third resistor R3, Fifth resistor R5, Sixth resistor R6, Seventh resistor R7, Eighth resistor R8, Ninth resistor R9, Tenth resistor R10, MOSFET Q1, Transistor Q2, First capacitor C1, First diode D1, Second diode D2, Ground DGND, Button SW1. Detailed Implementation

[0021] In the following description, numerous specific details are set forth for illustrative purposes and to provide a thorough understanding of one or more embodiments. However, it will be apparent that these embodiments may also be implemented without these specific details. In other instances, well-known structures and devices are shown in block diagram form for ease of description of one or more embodiments.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate structural component; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] It should be understood that the terminology used in this invention is merely for describing particular embodiments and is not intended to limit the invention. Furthermore, with respect to numerical ranges in this invention, it should be understood that each intermediate value between the upper and lower limits of the range is also specifically disclosed. Every smaller range between any stated value or intermediate value within a stated range, and any other stated value or intermediate value within said range, is also included in this invention. The upper and lower limits of these smaller ranges may be independently included or excluded from the range.

[0024] Various modifications and variations can be made to the specific embodiments described in this specification without departing from the scope or spirit of the invention, as will be apparent to those skilled in the art. Other embodiments derived from this specification will also be readily apparent to those skilled in the art. This application specification and embodiments are merely exemplary.

[0025] To facilitate others' understanding of the principle of the self-locking power-on / off control system provided by this invention, before detailing the specific structure of the self-locking power-on / off control system provided by this invention, it is necessary to briefly introduce the definition of self-locking: self-locking is achieved by combining electronic control logic (firmware / hardware) with mechanical buttons, so that when the device triggers specific conditions (such as power on or off), it automatically enters an unauthorized and unremovable state, thereby locking the function.

[0026] The specific structure of the self-locking on / off control system provided by this invention is described in detail below.

[0027] Figure 1 The structure of a self-locking on / off control system according to an embodiment of the present invention is shown. Figure 1 As can be seen, the self-locking power-on / off control system provided by the present invention includes a power supply module, a button module, a self-locking circuit, and a control module; wherein, the button module includes a button for controlling whether the self-locking circuit is turned on by pressing the button; the self-locking circuit is used to control whether the power supply module supplies power to the control module by whether it is turned on; the control module is used to enter the power-on mode in the power supply mode, and in the power-on mode, the control module can send corresponding control signals to the beacon transmitter unit.

[0028] Specifically, when the self-locking circuit is activated for a first preset time via the button on the button module, the activation of the self-locking circuit causes the power module to supply power to the control module for the first preset time, at which point the control module enters the power-on mode. Simultaneously, based on the activation of the self-locking circuit, the self-locking circuit also sends a first status signal to the control module in the power-on mode. Upon receiving the first status signal, the control module further sends a first control signal to the self-locking circuit based on the first status signal. The self-locking circuit then remains activated based on the first control signal, allowing the power module to continuously supply power to the control module after the first preset time. It should be noted that after the self-locking circuit is activated for the first preset time via the button on the button module, the button on the button module will be deactivated. At this point, without needing to activate the self-locking circuit again, the control module will actively and continuously provide the first control signal to the self-locking circuit, keeping the self-locking circuit continuously activated and thus keeping the control module continuously in the power-on mode.

[0029] Furthermore, during the process where the power module continuously supplies power to the control module after the first preset time, when it is necessary to stop the control module, the button module controls the self-locking circuit to send a second status signal to the control module; the control module then sends a second control signal to the self-locking circuit based on the second status signal, and the self-locking circuit disconnects based on the second control signal, so that the power module disconnects power to the control module, thereby causing the control module to enter the stop mode.

[0030] In one specific embodiment of the present invention, in order to implement the design of the self-locking circuit, Figure 2 A circuit diagram of a self-locking circuit according to an embodiment of the present invention is shown, wherein... Figure 2 It can be seen that the self-locking circuit may include a MOSFET Q1 and a transistor, a power input terminal VIN, a power output terminal VOUT, a status output terminal STATE, and a control input terminal CTRL; wherein, the source of the MOSFET Q1 is connected to the power module through the power input terminal VIN, and the drain of the MOSFET Q1 is connected to the control module through the power output terminal VOUT; the status output terminal STATE is used to send the first status signal and the second status signal to the control module, and the control input terminal CTRL is used to receive the first control signal. The second control signal; and, a first resistor R1 and a sixth resistor R6 are connected in sequence between the source of the MOS transistor Q1 and the collector of the transistor; a second resistor R2, a ninth resistor R9 and a tenth resistor R10 are connected in sequence between the gate of the MOS transistor Q1 and ground DGND; the state output terminal STATE is connected between the second resistor R2 and the ninth resistor R9; the base of the transistor is connected to the control input terminal CTRL; the emitter of the transistor Q2 is grounded; the buttons of the button module are connected in parallel across the tenth resistor R10. A first node is formed between the first resistor R1 and the sixth resistor R6, and a second node is formed between the second resistor R2 and the ninth resistor R9; wherein the first node and the second node are at the same potential; a third node is formed between the first node and the ninth resistor R9; wherein a first diode D1 is provided between the third node and the state output terminal STATE, and a second diode D2 is provided between the second node and the third node, the anode of the first diode D1 is connected to the state output terminal STATE, and the anode of the second diode D2 is connected to the second resistor R2; a seventh resistor R7 is provided between the base of the transistor and the control input terminal CTRL; and an eighth resistor R8 is connected between the base of the transistor and the emitter of the transistor Q2.

[0031] In the aforementioned self-locking circuit, the opening and closing of the MOSFET Q1 indicates whether the entire self-locking circuit is conducting, and is used to control whether the power module supplies power to the control module. The second resistor R2 and the ninth resistor R9 form a set of mutually cooperating voltage divider resistors. The second resistor R2, the ninth resistor R9, and the second diode D2 in between together determine the voltage Vgs between the gate and source of the MOSFET Q1 (where the voltage drop of the second diode D2 is approximately 0.3V), thus determining the opening and closing of the MOSFET Q1 during button presses. The first resistor R1 and the sixth resistor R6 form a set of mutually cooperating voltage divider resistors (where the voltage drop of the transistor Q2 when it is open is approximately 0.3V), thus determining the opening and closing of the MOSFET Q1 during the self-locking process.

[0032] Both the seventh resistor R7 and the eighth resistor R8 are voltage divider resistors, and the divided voltage is provided by the control input terminal CTRL of the control module. The seventh resistor R7 and the eighth resistor R8 together determine the voltage Vbe between the base and emitter of the transistor, thus determining the transistor's on and off states during the latch-up process. The divided voltage is provided by the control input terminal CTRL of the core control module.

[0033] The tenth resistor, R10, is a preset resistance value and is connected to ground to maintain its voltage level in the low range. It is connected in parallel with the button to complement its function. In actual design, this allows for a continuous voltage supply to the control module during development, rather than requiring the button to be pressed continuously. Both the first diode, D1, and the second diode, D2, are reverse-connection protection diodes. Reverse-connection diodes have unidirectional conductivity, controlling the current flow and preventing reverse current flow.

[0034] Specifically, a fifth resistor R5 is connected between the status output terminal STATE and the power input terminal VIN. The fifth resistor R5 is a pull-up resistor. During the button press process, the fifth resistor R5 generates a continuous low level due to the voltage division effect of the first resistor R1 and the ninth resistor R9. During the self-locking process, the status output terminal STATE of the control module will be fixed at a high level by the pull-up resistor. In subsequent use, the control module can determine whether the button is pressed and the duration of the press by the change in the level of the status output terminal STATE.

[0035] A third resistor, a pull-down resistor, is provided between the power output terminal VOUT and ground. When there is no valid input drive signal, the power output terminal VOUT can be maintained at a defined low logic level (typically 0V or ground). Because the drain of the MOSFET Q1 is in a floating state when it is not turned on, the third resistor can fix the level of the power output terminal VOUT.

[0036] When button SW1 is pressed, the system is connected to the ground plane, generating a potential difference, which can conduct voltage to turn on MOSFET Q1 or transistor. When the button is not pressed, the system is floating, there is no reference plane, no current is generated, no potential difference can be generated, and MOSFET Q1 or transistor cannot be turned on.

[0037] In addition, to achieve power supply filtering, a first capacitor C1 can be connected between the power input terminal VIN and the first node. The first capacitor C1 can play a filtering role. The first capacitor C1 can store charge and smooth voltage fluctuations. When there is high-frequency noise in the input power supply, the first capacitor C1 will short-circuit the high-frequency components, thereby improving the stability and accuracy of the signal.

[0038] The working principle of the self-locking circuit provided by this invention will be explained in detail below, taking into account the functions of each component in the self-locking circuit.

[0039] First, when button SW1 is not pressed, because the tenth resistor R10 is not soldered (in the PCB, components need to be soldered to the board to be used), the tenth resistor R10 is in a floating state, which makes the ninth resistor R9 not connected to ground (potential 0). At this time, the resistance between the ninth resistor R9 and the ground plane is infinite, and it is in a floating state. Each voltage divider resistor has no reference ground, the power supply is in an open circuit state, no current flows, and no potential difference, i.e., voltage, can be formed. Therefore, the voltage divider resistors do not work, and neither MOSFET Q1 nor transistor is turned on. The power supply is blocked by the source of MOSFET Q1 and cannot pass through, and the power supply is blocked by the collector of transistor Q2 and cannot pass through. At this time, only the leakage current of MOSFET Q1 and transistor Q2 generates extremely low power consumption.

[0040] When powered on, pressing button SW1 grounds resistor R9, allowing power to flow from the power input terminal VIN. The voltage divider between resistors R2 and R9 turns on MOSFET Q1, allowing power to flow from the drain of MOSFET Q1 to the power output terminal VOUT, thus powering the control module. Additionally, resistors R5 and R9 form a voltage divider, conducting diode D1. At this time, the control module (microcontroller MCU) detects a low-level first status signal at the status output terminal. A long press of the button results in a continuously low first status signal at the status output terminal. The control module then sends a first control signal (a continuous high level) to the control input terminal CTRL. This continuous high level, after being divided by resistors R7 and R8, turns on transistor Q2, causing resistors R1 and R6 to divide the voltage, replacing the voltage divider between resistors R2 and R9, thus turning on MOSFET Q1. Even when the button is released, the power module continues to supply power to the control module, forming a self-locking loop.

[0041] When the power is off, press and hold button SW1. At this time, the control module detects that the second status signal of the status output terminal STATE is continuously low. After receiving the second status signal, the control module will send a second control signal through the control input terminal CTRL, which is continuously low. Transistor Q2 is disconnected due to the continuous low level input, so that the first resistor R1 and the sixth resistor R6 no longer divide the voltage. At this time, releasing the button will complete the power off of the self-locking power on / off system.

[0042] To further illustrate the working principle of the self-locking power on / off system provided by this invention, Figure 3 A flowchart of a self-locking power-on / off control method provided according to an embodiment of the present invention is shown, by... Figure 3 It is understood that the present invention also provides a control method for the aforementioned self-locking power on / off system, the control method comprising: S110: The button module controls the self-locking circuit to conduct for a first preset time, so that the power module supplies power to the control module for a first preset time, and sends a first status signal to the control module based on the self-locking circuit; S120: The control module is used to send a first control signal to the self-locking circuit based on the first status signal, and the self-locking circuit is turned on based on the first control signal so that the power module continuously supplies power to the control module after the first preset time. S130: During the process of the power module continuously supplying power to the control module after the first preset time, the button module controls the self-locking circuit to conduct for a second preset time, and sends a second status signal to the control module based on the self-locking circuit; S140: The control module is used to send a second control signal to the self-locking circuit based on the second status signal, and the self-locking circuit is disconnected based on the second control signal, so that the power module disconnects the power supply to the control module.

[0043] Furthermore, to realize the application of the self-locking power-on / off control system provided by the present invention in beacon machines, the present invention also provides a beacon machine, which includes the aforementioned self-locking power-on / off control system. In actual use, the beacon machine performs self-locking control based on the self-locking power-on / off control method provided by the present invention, which can effectively avoid accidental touch and significantly improve the service life.

[0044] As can be seen from the above specific embodiments, the self-locking power on / off control system provided by the present invention has at least the following advantages: 1. The MOSFET in the self-locking circuit can be turned on by the control of the second and ninth resistors, or by the control of the transistor in conjunction with the first and sixth resistors; the two functions are mutually redundant to achieve the self-locking function.

[0045] 2. The detection of the first and second state signals by the control module can be flexibly set (such as the duration of the low level), and the power on / off actions can be customized, which greatly avoids power consumption caused by accidental touch; it saves the power waste of the beacon, and its small size and long battery life meet the needs of individual combat and the requirements of missions such as operation, disaster relief and search and rescue in harsh and extreme environments.

[0046] 3. The self-locking power-on / off control system provided by this invention disconnects the downstream module (such as the control module) from the power supply module after power-off. Only the semiconductor devices in the self-locking circuit suffer from extremely low losses due to leakage current caused by their own design process. The leakage current is only in the nA range.

[0047] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method 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, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.

[0048] As referred above Figures 1 to 3 The self-locking power on / off control system according to the present invention is described by way of example. However, those skilled in the art should understand that various modifications can be made to the self-locking power on / off control system proposed in the present invention without departing from the scope of the invention. Therefore, the scope of protection of the present invention should be determined by the contents of the appended claims.

Claims

1. A self-locking on / off control system, characterized in that, It includes a power module, a button module, a self-locking circuit, and a control module; among which, The button module is used to control the self-locking circuit to conduct for a first preset time, so that the power module supplies power to the control module for a first preset time, and sends a first status signal to the control module based on the self-locking circuit; After the first preset time has elapsed, the control module sends a first control signal to the self-locking circuit based on the first status signal. The self-locking circuit is turned on based on the first control signal, so that the power module continues to supply power to the control module after the first preset time.

2. The self-locking on / off control system as described in claim 1, characterized in that, During the process of the power module continuously supplying power to the control module after the first preset time, the button module is also used to control the self-locking circuit to send a second status signal to the control module; The control module is used to send a second control signal to the self-locking circuit based on the second status signal. The self-locking circuit disconnects based on the second control signal, so that the power module disconnects the power supply to the control module.

3. The self-locking on / off control system as described in claim 2, characterized in that, The self-locking circuit includes a MOSFET and a transistor, a power input terminal, a power output terminal, a status output terminal, and a control input terminal. The source of the MOSFET is connected to the power module via the power input terminal, and the drain of the MOSFET is connected to the control module via the power output terminal. The status output terminal is used to send a first status signal and a second status signal to the control module, and the control input terminal is used to receive the first control signal and the second control signal. A first resistor and a sixth resistor are connected in sequence between the source of the MOS transistor and the collector of the transistor; a second resistor, a ninth resistor, and a tenth resistor are connected in sequence between the gate of the MOS transistor and ground; the status output terminal is connected between the second resistor and the ninth resistor; the base of the transistor is connected to the control input terminal, and the emitter of the transistor is grounded; the buttons of the button module are connected in parallel across the tenth resistor.

4. The self-locking on / off control system as described in claim 3, characterized in that, A first node is formed between the first resistor and the sixth resistor, and a second node is formed between the second resistor and the ninth resistor; wherein... The first node and the second node are at the same potential.

5. The self-locking on / off control system as described in claim 4, characterized in that, A third node is formed between the second node and the ninth resistor; wherein... A first diode is disposed between the third node and the status output terminal, and a second diode is disposed between the second node and the third node. The positive terminal of the first diode is connected to the status output terminal, and the positive terminal of the second diode is connected to the second resistor.

6. The self-locking on / off control system as described in claim 5, characterized in that, A fifth resistor is connected between the status output terminal and the power input terminal; and... A third resistor is provided between the power output terminal and ground.

7. The self-locking on / off control system as described in claim 6, characterized in that, A seventh resistor is provided between the base of the transistor and the control input terminal; An eighth resistor is connected between the base and emitter of the transistor.

8. The self-locking on / off control system as described in claim 7, characterized in that, A first capacitor is connected between the power input terminal and the first node.

9. A self-locking on / off control method, characterized in that, The button module controls the self-locking circuit to conduct for a first preset time, so that the power module supplies power to the control module for a first preset time, and sends a first status signal to the control module based on the self-locking circuit. The control module is used to send a first control signal to the self-locking circuit based on the first status signal. The self-locking circuit is turned on based on the first control signal so that the power module continuously supplies power to the control module after the first preset time. During the process of the power module continuously supplying power to the control module after the first preset time, the button module controls the self-locking circuit to send a second status signal to the control module; The control module is used to send a second control signal to the self-locking circuit based on the second status signal. The self-locking circuit disconnects based on the second control signal, so that the power module disconnects the power supply to the control module.

10. A beacon machine, characterized in that, Includes the self-locking on / off control system described in any one of 1 to 8.

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