Low-power-consumption active electronic lock and operation method

Abstract

The invention discloses an active low-power-consumption electronic lockset and an operation method applied to the active low-power-consumption electronic lockset, and the active low-power-consumption electronic lockset comprises a power supply, a first switch module, a second switch module, a trigger module and a control module; wherein the power supply supplies power to the control module through the first switch module, the trigger module and the second switch module jointly control the on-off of the first switch module, and the control module controls the on-off of the second switch module. Through the structure and the method, the effects of complete power failure and zero power consumption of the active electronic lockset in the shutdown state are jointly realized, so that the power consumption of the active electronic lockset is effectively reduced, and the service life of the active electronic lockset is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic locks, and in particular to a low-power active electronic lock and an operating method thereof. Background Art

[0002] The application of smart electronic locks in all walks of life is increasing. At present, the main application scenarios of smart electronic locks include home smart door locks, logistics industry vehicle IoT locks, warehousing industry IoT locks, power industry IoT locks, etc. Compared with traditional mechanical locks, the main advantages of smart electronic locks are: easy key management, easy authorization management, easy record query, easy real-time record upload, etc.

[0003] At present, most smart electronic locks are powered by disposable non-rechargeable batteries, so the battery life of the locks and the maintenance and replacement cycle of the batteries have become important indicators for measuring the quality of smart locks. The traditional low-power method for electronic locks is to put the lock in a low-power sleep state when it is not in operation, and wake it up to work when a trigger source is generated. The trigger source generally includes human body induction trigger, vibration trigger, Hall sensor or reed switch induction trigger, micro switch trigger, etc. Electronic locks using this low-power method have the following three disadvantages: First, the lock still has a large power consumption in the sleep state, which makes the overall battery life insufficient; second, if there are components damaged during the production, manufacturing or transportation and assembly process, such as damaged capacitors, the power consumption of the lock will increase significantly, resulting in a sharp drop in battery life; third, program design vulnerabilities or EMC interference will cause the device to be unable to enter the sleep state or be frequently awakened from the sleep state, which will cause a significant increase in power consumption and a sharp drop in battery life. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a low-power active electronic lock, which realizes the control of power-on of the electronic lock through a circuit composed of a switch module, a trigger module, a battery and a control chip electrically connected, and after the electronic lock is turned on and completes the state acquisition, unlocking operation, record uploading and other work tasks, the software built into the control system is shut down to achieve complete power off, and realize zero power consumption of the lock after power off.

[0005] The present invention also provides a low-power active electronic lock operation method applied to the above-mentioned low-power active electronic lock.

[0006] A low power consumption active electronic lock according to an embodiment of the first aspect of the present invention comprises:

[0007] A power source for providing electrical energy;

[0008] A first switch module, wherein an input end of the first switch module is electrically connected to the power supply;

[0009] A control module, electrically connected to the output end of the first switch module;

[0010] a trigger module, electrically connected to the controlled end of the first switch module;

[0011] A second switch module, wherein a controlled end of the second switch module is electrically connected to the control module, and an output end of the second switch module is electrically connected to a controlled end of the first switch module.

[0012] According to some embodiments of the present invention, the first switch module includes:

[0013] A first MOS tube, wherein a source of the first MOS tube is electrically connected to the power supply, a drain of the first MOS tube is electrically connected to the control module, and a gate of the first MOS tube is electrically connected to the trigger module.

[0014] According to some embodiments of the present invention, the first switch module further includes:

[0015] a first capacitor, one end of which is electrically connected to the drain of the first MOS transistor, and the other end of which is grounded;

[0016] a second capacitor, one end of the second capacitor being electrically connected to the gate of the first MOS transistor, and the other end of the second capacitor being grounded;

[0017] A first resistor, one end of which is electrically connected to the source of the first MOS tube;

[0018] A second resistor, one end of the second resistor is electrically connected to the other end of the first resistor, one end of the second resistor is also electrically connected to the trigger module, and the other end of the second resistor is electrically connected to the gate of the first MOS tube.

[0019] According to some embodiments of the present invention, the trigger module includes:

[0020] a first diode, wherein an anode of the first diode is electrically connected to a controlled end of the first switch module;

[0021] A trigger switch, one end of the trigger switch is grounded, and the other end of the trigger switch is electrically connected to the cathode of the first diode.

[0022] According to some embodiments of the present invention, the trigger module further includes:

[0023] a second diode, wherein a cathode of the second diode is electrically connected to a cathode of the first diode;

[0024] a third resistor, one end of the third resistor being electrically connected to the control module, and the other end of the third resistor being electrically connected to the anode of the second diode;

[0025] a fourth resistor, one end of the fourth resistor being electrically connected to the other end of the third resistor, and the other end of the fourth resistor being electrically connected to the control module;

[0026] A third capacitor, one end of the third capacitor is electrically connected to the control module, and the other end of the third capacitor is electrically connected to one end of the trigger switch.

[0027] According to some embodiments of the present invention, the second switch module includes:

[0028] A second MOS tube, wherein a gate of the second MOS tube is electrically connected to the control module, a source of the second MOS tube is grounded, and a drain of the second MOS tube is electrically connected to the controlled end of the first switch module.

[0029] According to some embodiments of the present invention, the second switch module further includes:

[0030] a third diode, an anode of the third diode being electrically connected to the control module;

[0031] a fifth resistor, one end of the fifth resistor being electrically connected to the cathode of the third diode, and the other end of the fifth resistor being electrically connected to the gate of the second MOS transistor;

[0032] a fourth capacitor, one end of which is electrically connected to the gate of the second MOS transistor, and the other end of which is grounded;

[0033] A sixth resistor, one end of the sixth resistor is electrically connected to the gate of the second MOS tube, and the other end of the sixth resistor is grounded.

[0034] The low-power active electronic lock according to the embodiment of the present invention has at least the following beneficial effects: by electrically connecting the input end of the first switch module to the power supply, electrically connecting the output end of the first switch module to the control module, and electrically connecting the controlled end of the first switch module to the trigger module, the electrical on-off between the power supply and the control module is controlled by the trigger module, so that the entire system is powered on only when the trigger module receives a trigger source, thereby achieving zero power consumption of the active electronic lock in a non-working state, and because the electronic lock is completely powered off in the shutdown state, even if there is abnormal damage to components that do not affect the function, such as capacitors, it will not affect the overall power consumption, and because the electrical connection structure enables the system to be powered on only when the trigger module receives a trigger source, so that the electronic lock does not need to be powered on in a completely shutdown state. There is a concern that the device will be awakened abnormally and generate additional power consumption; then, by electrically connecting the controlled end of the second switch module to the control module, and electrically connecting the output end of the second switch module to the controlled end of the first switch module, it is achieved that when the trigger source disappears, the control chip that has been powered on can maintain the conduction of the first switch module by controlling the second switch module, thereby maintaining its own power-on state. In addition, when the standby time set inside the control module is reached, or the active electronic lock needs to enter the shutdown state due to other reasons, the control module can also indirectly control the on and off of the first switch module by controlling the on and off of the second switch module, thereby powering itself off and entering the shutdown state. By using this method of completely entering the power-off state by internal software, the energy consumption of the device is greatly reduced, and the degree of automation control and controllability of the device are improved.

[0035] According to the second aspect of the present invention, a method for operating a low-power active electronic lock comprises the following steps:

[0036] When the low-power active electronic lock is in an initial shutdown state, the first switch module and the second switch module are both in an off state;

[0037] When the trigger module receives the trigger source, the trigger module is turned on, so that the first switch module is turned on;

[0038] The power supply supplies power to the control module through the first switch module, so that the control module is turned on;

[0039] The control module sends a control signal to the second switch module to turn on the second switch module, thereby keeping the first switch module turned on.

[0040] According to some embodiments of the present invention, the following steps are also included:

[0041] According to the standby time set inside the control module, after the standby time has passed, the control module sends a control signal to the second switch module to turn off the second switch module, thereby turning off the first switch module and shutting down the control module.

[0042] According to some embodiments of the present invention, after the trigger module receives a trigger source, the trigger module further outputs a trigger signal to the control module.

[0043] The low-power active electronic lock operation method according to the embodiment of the present invention has at least the following beneficial effects: by controlling the first switch module to turn on to power on the control module only after the trigger module receives the trigger source, the electronic lock has zero power consumption in the off state, and because the electronic lock is completely powered off in the off state, even if there is abnormal damage to components that do not affect the function, such as capacitors, it will not affect the overall power consumption, and because the system is powered on only when the trigger module receives the trigger source, there is no need to worry about the device being abnormally awakened and generating additional power consumption when the electronic lock is completely powered off; and then the control module sends a control signal to the second switch module to turn on the second switch module, so that the first switch module remains on, thereby preventing the system from being powered off due to the disappearance of the trigger source, so that the control module can decide whether to turn on and off the power of itself and the entire system according to the internal program after powering on, greatly improving the controllability and automation of the system.

[0044] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0046] Figure 1 A module connection diagram of a low-power active electronic lock according to an embodiment of the present invention;

[0047] Figure 2 The electrical schematic diagram of the low-power active electronic lock according to the embodiment of the present invention;

[0048] Figure 3 The figure is a flow chart of a method for operating a low-power active electronic lock according to an embodiment of the present invention.

[0049] A power supply 100 , a first switch module 200 , a control module 300 , a trigger module 400 , and a second switch module 500 . DETAILED DESCRIPTION

[0050] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0051] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0052] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0053] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0054] The following is combined with Figure 1-3 , a gas working time monitoring device according to an embodiment of the present invention is described in detail.

[0055] Reference Figure 1 The present invention proposes a low-power active electronic lock, comprising:

[0056] A power supply 100, for providing electrical energy;

[0057] A first switch module 200, an input end of the first switch module 200 is electrically connected to the power source 100;

[0058] The control module 300 is electrically connected to the output end of the first switch module 200;

[0059] The trigger module 400 is electrically connected to the controlled end of the first switch module 200;

[0060] The second switch module 500, the controlled end of the second switch module 500 is electrically connected to the control module, and the output end of the second switch module is electrically connected to the controlled end of the first switch module.

[0061] Specifically, in this embodiment, the power supply continuously provides the rated voltage, and the first switch module 200 is arranged between the power supply 100 and the control module 300, that is, only when the first switch module 200 is turned on, the power supply 100 can supply power to the control module 300, and the on and off of the first switch module 200 is controlled by an external signal, so the first switch module should use a controllable switch, such as a contactor, a relay, a metal-oxide-semiconductor field effect transistor (MOS tube), a semiconductor triode (BJT), etc. The output end of the first switch module 200 is electrically connected to the power supply pin in the control module 300, and the first switch module 200 The controlled end is electrically connected to the trigger module 400, so the first switch module 200 can receive the trigger signal sent by the trigger module 400, such as a low potential signal, a high potential signal, a digital signal, an analog signal, etc., and determine the on and off of the first switch module 200 according to the trigger signal. The trigger module 400 can use a micro switch or a reed switch, etc. to convert the physical signal into an electrical signal. The control module 300 includes a control chip and other peripheral modules and components. The control chip can use a single-chip microcomputer (MCU). Other peripheral modules and components are commonly used modules and components in the field of active electronic locks, which can be increased or decreased according to actual needs. According to the above electrical connection structure, the technical effect that only when the trigger module 400 is triggered, the power supply 100 supplies power to the control module 300, and the entire electronic lock system is powered on can be achieved. In addition, the device also includes a second switch module 500, the output end of the second switch module 500 is electrically connected to the controlled end of the first switch module 200, and the controlled end of the second switch module 500 is electrically connected to the pin of the control chip in the control module 300. Therefore, the control chip in the control module 300 can control the on and off of the first switch module 200 through the second switch module 500, thereby achieving the effect of maintaining the control module 300 itself powered on, or cutting off its own power supply to put itself into a completely power-off sleep state. The input end of the second switch module 500 can be selected to be electrically connected to the power supply 100, or grounded, or electrically connected to other pins of the control module according to actual conditions (i.e., the selection of the controllable switch of the first switch module 200 and its internal electrical connection). The following technical effects are achieved through the above-mentioned electrical connection structure: 1. The electronic lock has zero power consumption when it is in the off state; 2. Since the electronic lock is completely powered off when it is in the off state, even if there is abnormal damage to components such as capacitors that do not affect the function, it will not affect the overall power consumption; 3. Since the entire system will be powered on only when the trigger module 400 is triggered, there is no need to worry about the device being abnormally awakened and generating additional power consumption when the electronic lock is in the completely off state.

[0062] Reference Figure 2 Further, in some embodiments of the present invention, the first switch module 200 includes:

[0063] The first MOS transistor G1, the source of the first MOS transistor G1 is electrically connected to the power supply 100, the drain of the first MOS transistor G1 is electrically connected to the control module 200, and the gate of the first MOS transistor G1 is electrically connected to the trigger module 400. Specifically, in the present embodiment, the source of the first MOS transistor G1 is electrically connected to the power supply 100 that continuously provides a DC voltage, that is, the source of the first MOS transistor G1 continuously inputs a voltage through the V_BAT power port; the drain of the first MOS transistor G1 is electrically connected to the power-on pin of the control chip in the control module 200, specifically, to the pin named +3V; the gate of the first MOS transistor G1 is electrically connected to the trigger module 400. According to the characteristics of the MOS transistor, whether the source and drain of the MOS transistor are turned on is determined by the voltage between the gate and the source of the MOS transistor. More specifically, for example, when the first MOS transistor G1 uses a PMOS transistor, only when the first MOS transistor G1 is turned on, the power supply 100 is turned on. When the gate-source voltage VGS of the first MOS tube G1 is less than a certain threshold, the first MOS tube G1 will be turned on. Therefore, if the first MOS tube G1 is turned on, a low-level signal should be input to its gate. Therefore, if the first MOS tube G1 is turned on to power on the system, the trigger module 400 should output a low-level signal. When the first MOS tube G1 is an NMOS tube, the first MOS tube G1 will be turned on only when the gate-source voltage VGS of the first MOS tube G1 is greater than a certain threshold. Therefore, if the first MOS tube G1 is turned on, a high-level signal should be input to its gate. Therefore, if the first MOS tube G1 is turned on to power on the system, the trigger module 400 should output a high-level signal. Using a MOS tube as a switch in the first switch module 200 has the following advantages: 1. When the MOS tube is in the on state, the internal resistance is very small, which can reach the milliohm level, so its conduction loss is extremely low, thereby greatly reducing the power consumption of the active electronic lock; 2. The MOS tube has a fast response speed and can quickly switch the on and off state of the circuit, thereby enabling the active electronic lock to respond quickly when triggered; 3. The MOS tube only requires an extremely low gate voltage to be turned on or off, further reducing the energy consumption of the switching process of the active electronic lock, and reducing the complexity and cost of the circuit design, thereby effectively simplifying the structure of the active electronic lock, reducing its production cost, and improving the overall performance; 3. The MOS tube has no secondary breakdown phenomenon, which greatly reduces its damage rate and improves the safety and reliability of the active electronic lock.

[0064] Reference Figure 2 Furthermore, in some embodiments of the present invention, the first switch module 200 further includes:

[0065] A first capacitor C1, one end of the first capacitor C1 is electrically connected to the drain of the first MOS transistor G1, and the other end of the first capacitor C1 is grounded;

[0066] A second capacitor C2, one end of the second capacitor C2 is electrically connected to the gate of the first MOS transistor G1, and the other end of the second capacitor C2 is grounded;

[0067] A first resistor R1, one end of the first resistor R1 is electrically connected to the source of the first MOS transistor G1;

[0068] The second resistor R2 has one end electrically connected to the other end of the first resistor R1, one end of the second resistor R2 is also electrically connected to the trigger module 400, and the other end of the second resistor R2 is electrically connected to the gate of the first MOS transistor G1.

[0069] Specifically, in the present embodiment, one end of the first capacitor C1 is connected in parallel with the +3V interface of the control module 300, and is electrically connected to the drain of the first MOS tube G1, and the other end of the first capacitor C1 is grounded. Therefore, the first capacitor C1 plays the role of energy storage and voltage stabilization in the circuit. In the absence of a capacitor, if the power consumption in the circuit suddenly increases, the voltage of the power supply 100 will be pulled down, thereby generating noise and ringing. A large-capacity capacitor can temporarily store electric energy, thereby stabilizing the voltage of the power supply 100; one end of the second capacitor C2 is connected in parallel with the second resistor R2, and is electrically connected to the gate of the first MOS tube G1, and the other end of the second capacitor C2 is grounded. Therefore, the second capacitor plays the role of filtering in the circuit, and can filter the clutter of the control signal (low-level signal or high-level signal, etc.) applied to the gate of the first MOS tube G1, thereby shielding the influence of other non-trigger signals, and preventing the active electronic lock from being accidentally triggered to power on in the off state, thereby improving the stability of the device. The input end of the first resistor R1 is electrically connected to the source of the first MOS tube G1 and the power supply 100 at the same time, the output end of the first resistor R1 is electrically connected to the input end of the second resistor R2, the input end of the second resistor is also electrically connected to the trigger module 400, and the output end of the second resistor R2 is electrically connected to the gate of the first MOS tube G1. Therefore, the input end of the first resistor R1 and the source of the first MOS tube G1 are equipotential points, and the output end of the second resistor R2 and the gate of the first MOS tube G1 are equipotential points. Due to the existence of the first resistor R1 and the second resistor R2, when the trigger module 400 is not triggered, there is a potential difference between the above two equipotential points. This potential difference is also the power difference between the gate and the source of the first MOS tube G1, that is, the gate-source voltage VGS. The potential signal output by the trigger module 400 can change the gate-source voltage VGS, thereby controlling the conduction and disconnection between the drain and the source of the first MOS tube G1, thereby realizing the power-on and power-off shutdown of the system. For example, when the first MOS tube G1 is a PMOS tube, when there is no trigger source, the gate-source voltage VGS of G1 is the voltage difference between the input end of R1 (i.e., the power supplied by the power supply 100) and the output end of R2. At this time, the gate-source voltage VGS is relatively large. When there is a trigger source, the trigger module 400 outputs a low-level signal, so that the gate-source voltage VGS of G1 becomes low and is lower than the threshold, so that the source and drain of the first MOS tube G1 are turned on, and the system is powered on.

[0070] Reference Figure 2 Further, in some embodiments of the present invention, the trigger module 400 includes:

[0071] A first diode D1, wherein an anode of the first diode D1 is electrically connected to a controlled end of the first switch module 200;

[0072] The trigger switch S1 has one end connected to the ground, and the other end connected to the cathode of the first diode D1.

[0073] Specifically, in this embodiment, the first diode D1 is used to control the unidirectional flow of current, so that the current can only flow from the first switch module 200 to the trigger module 400, to prevent the current from flowing back into the system to generate additional power in the shutdown state, and the reverse leakage current of the diode should be as small as possible, thereby reducing battery leakage; the trigger switch S1 adopts a micro switch or a reed switch, etc., to convert a physical signal into an electrical signal, the input end of the trigger switch S1 is grounded, and the output end of the trigger switch S1 is electrically connected to the cathode of the second diode D2 and the cathode of the first diode D1 at the same time, and the second diode D2 is used to control the unidirectional flow of current, so that the current can only flow from the control module 300 to the trigger module 400, thereby reducing battery leakage. When there is no trigger source, the trigger switch S1 is disconnected, and at this time the power module 100 provides a high potential to the controlled end of the first switch module 200. When the trigger switch S1 is pressed, the controlled end of the first switch module 200 is grounded, thereby achieving the effect of outputting a low-level signal to the controlled end of the first switch module 200, thereby controlling the first switch module 200 to be turned on.

[0074] Reference Figure 2 Furthermore, in some embodiments of the present invention, the trigger module 400 further includes:

[0075] A second diode D2, wherein a cathode of the second diode D2 is electrically connected to a cathode of the first diode D1;

[0076] a third resistor R3, one end of the third resistor R3 is electrically connected to the control module 300, and the other end of the third resistor R3 is electrically connected to the anode of the second diode D2;

[0077] a fourth resistor R4, one end of the fourth resistor R4 is electrically connected to the other end of the third resistor R3, and the other end of the fourth resistor R4 is electrically connected to the control module 300;

[0078] A third capacitor C3, one end of the third capacitor is electrically connected to the control module, and the other end of the third capacitor is electrically connected to one end of the trigger switch.

[0079] Specifically, the output end of the trigger switch S1 is electrically connected to the cathode of the second diode D1, and the second diode D2 is used to control the unidirectional flow of current, so that the current can only flow from the control module 300 to the trigger module 400; the input end of the third resistor R3 is electrically connected to the power supply 100, the input end of the fourth resistor R4 is electrically connected to the output end of the third resistor R3, and the output end of the fourth resistor R4 is electrically connected to the KEY pin of the control chip in the control module 300. When the trigger switch S1 is not connected, the KEY pin of the control chip in the control module 100 is electrically connected to its own +3.0V power-on pin, and there is no voltage input, maintaining a low level state. When the trigger After the switch S1 is connected, a low-level signal is output to the controlled end of the first switch module 200, thereby turning on the first switch module, powering on the system, and the +3.0V power-on pin of the control chip starts to output a +3.0V power-on voltage. Since the KEY pin is grounded via R4 and D2 at this time, it is still in a low-level state. Subsequently, the trigger switch is reset after being triggered and returns to the disconnected state. The KEY pin is no longer grounded, and the +3.0V power-on pin of the control chip electrically connected to it still carries a voltage of 3.0V at this time, so that the KEY pin is in a high-level state, that is: once the power-on initialization of the control module 300 is completed, the KEY pin is energized. Therefore, through the above-mentioned electrical connection method, the trigger switch S1 can output a high-level signal to the control module 100 by touching it, that is, the trigger source signal can be collected by the control chip in the control module 100 in the power-on state, so that the trigger source signal can also be used as other control logics; in addition, in addition to the trigger switch S1, the trigger source in the trigger module 400 can also be connected in parallel with multiple other trigger sources on both sides of the trigger switch S1. When the parallel lock status monitoring system is used as the trigger source, the lock can be actively awakened and the status data can be reported when the lock status changes without human intervention, thereby ensuring the real-time and accuracy of the lock status information; the positive polarity end of the third capacitor C3 is electrically connected to the power module and the power supply 100 via the fourth resistor R4 and the third resistor R3, and the negative polarity end of the third capacitor C3 is grounded, which mainly plays the role of energy storage and voltage stabilization. At the same time, the positive polarity end of the third capacitor C3 is also electrically connected to the KEY pin, and can also play the role of filtering for the control module 300 to prevent the control module 300 from receiving the trigger signal by mistake.

[0080] Reference Figure 2 Further, in some embodiments of the present invention, the second switch module 500 includes:

[0081] The second MOS transistor G2, the gate of the second MOS transistor G2 is electrically connected to the control module 300, the source of the second MOS transistor G2 is grounded, and the drain of the second MOS transistor G2 is electrically connected to the controlled end of the first switch module 200. Specifically, in the present embodiment, the second MOS transistor G2 adopts an NMOS type MOS transistor, and the second MOS transistor G2 will be turned on only when the gate-source voltage VGS of the second MOS transistor G2 is greater than a certain threshold. Since the source of the second MOS transistor G2 is grounded, if the second MOS transistor G2 is turned on, a high-level signal should be input to its gate. The gate of the second MOS transistor G2 is electrically connected to the VOUT_EN pin of the control chip in the control module 300. When the first switch module 200 is turned on to power on the control module 300, the control chip in the control module 300 outputs a high level to the VOUT_EN pin, thereby turning on the source and drain of the second MOS transistor G2. Since the second MOS transistor G2 The drain of the first switch module 200 is electrically connected to the controlled end of the first switch module 200, so the above operation grounds the controlled end of the first switch module 200, so that the controlled end of the first switch module 200 (that is, the gate of the first MOS tube) is kept at a low level, so that the first switch module 200 is continuously turned on and the system is powered on; when the internal timing of the control chip in the control module 300 reaches the standby time, the control chip in the control module 300 outputs a low level to the VOUT_EN pin, so that the source and drain of the second MOS tube G2 are turned off, and the controlled end of the first switch module 200 (that is, the gate of the first MOS tube) is restored to a high level, so that the first switch module 200 is turned off, and the system enters a dormant state with complete power off.

[0082] Reference Figure 2 Furthermore, in some embodiments of the present invention, the second switch module 500 further includes:

[0083] a third diode D3, wherein an anode of the third diode D3 is electrically connected to the control module 300;

[0084] a fifth resistor R5, one end of the fifth resistor R5 is electrically connected to the cathode of the third diode D3, and the other end of the fifth resistor R5 is electrically connected to the gate of the second MOS transistor;

[0085] a fourth capacitor C4, one end of the fourth capacitor C4 is electrically connected to the gate of the second MOS transistor G2, and the other end of the fourth capacitor C4 is grounded;

[0086] A sixth resistor R6, one end of the sixth resistor R6 is electrically connected to the gate of the second MOS transistor G2, and the other end of the sixth resistor R6 is grounded.

[0087] Specifically, in the present embodiment, the anode of the third diode D3 is electrically connected to the VOUT_EN pin of the control chip in the control module 300, the cathode of the third diode D3 is electrically connected to the input end of the fifth resistor R5, and the output end of the fifth resistor R5 is electrically connected to the gate of the second MOS transistor G2, that is, the VOUT_EN port is electrically connected to the gate of the second MOS transistor G2 via the third diode D3 and the fifth resistor R5, wherein the third diode D3 is used to control the unidirectional flow of current, so that the current can only flow from the control chip to the gate of the second MOS transistor G2, to prevent the charge accumulated on the fourth capacitor C4 in the shutdown state from forming a current or other interference current from flowing back into the control module 300 to generate additional power; the positive polarity end of the fourth capacitor C4 is electrically connected to the gate of the second MOS transistor, and the negative polarity end of the fourth capacitor is grounded, therefore, the fourth capacitor C4 plays a filtering role, to prevent the gate of the second MOS transistor G2 from receiving an erroneous clutter signal and causing accidental conduction, thereby generating unnecessary power consumption.

[0088] Reference Figure 1 and Figure 3 The present invention also proposes a low-power active electronic lock operation method, which is applied to the above-mentioned low-power active electronic lock, and includes the following steps:

[0089] S100: When the low-power active electronic lock is in an initial shutdown state, the first switch module 200 and the second switch module 500 are both in an off state;

[0090] S200: When the trigger module 400 receives a trigger source, the trigger module 400 is turned on, so that the first switch module 200 is turned on;

[0091] S300: The power supply 100 supplies power to the control module 300 through the first switch module 200, so that the control module 300 is turned on;

[0092] S400: The control module 300 sends a control signal to the second switch module 500 to turn on the second switch module 500, thereby keeping the first switch module 200 turned on.

[0093] Specifically, in this embodiment, the trigger module 400 of the system in the start state determines whether there is a trigger source. If there is a trigger source, the first switch 200 is turned on, the system is powered on, so that the control module 300 is powered on and initialized. Subsequently, the control chip in the control module 300 controls the second switch module 500 to be turned on, so that the first switch module 200 is continuously turned on, thereby maintaining the power-on state of the system, so that the control module 300 can achieve subsequent operations such as collecting status, executing instructions and reporting records. According to the above operation method, the technical effect that the power supply 100 supplies power to the control module 300 only when the trigger module 400 is triggered can be achieved, and the entire electronic lock system will be powered on. In addition, the control chip in the control module 300 can control the on and off of the first switch module 200 through the second switch module 500, so as to achieve the effect of maintaining the control module 300 itself powered on, or cutting off its own power supply to make itself enter a completely power-off dormant state. The following technical effects are jointly achieved through the above-mentioned operating method: 1. The electronic lock has zero power consumption when it is in the off state; 2. Since the electronic lock is completely powered off when it is in the off state, even if there is abnormal damage to components such as capacitors that do not affect the function, it will not affect the overall power consumption; 3. Since the entire system will be powered on only when the trigger module 400 is triggered, there is no need to worry about the device being abnormally awakened and generating additional power consumption when the electronic lock is in the completely off state.

[0094] Reference Figure 3 Further, in some embodiments of the present invention, the following steps are also included:

[0095] S500: According to the standby time set inside the control module 300, after the standby time has elapsed, the control module 300 sends a control signal to the second switch module 500 to turn off the second switch module 500, thereby turning off the first switch module 200 and shutting down the control module 300.

[0096] Specifically, refer to Figure 3 In this embodiment, the control module 300 counts time inside the control chip to determine whether a preset timing time has been reached. When the timing time has been reached, the control module 300 controls the second switch module 500 to turn off, so that the first switch module 200 is turned off, thereby achieving a complete power-off shutdown. Figure 2 , the VOUT_EN pin of the control chip outputs a high level or a low level to the second MOS tube G2 to control the on / off of the first MOS tube, that is, whether the system is powered on or not. Through the above operation mode, it can be achieved that the control chip in the control module 300 can control the on / off of the first switch module 200 through the second switch module 500, thereby achieving the effect of maintaining the control module 300 itself powered on, or cutting off its own power supply to put itself into a dormant state of complete power off.

[0097] Furthermore, in some embodiments of the present invention, after the trigger module receives the trigger source, the trigger module also outputs a trigger signal to the control module. Specifically, through the above-mentioned operation method, the trigger source signal can also be collected by the control chip in the control module 100 in the power-on state, so that the trigger source signal can also be used as other control logics, thereby greatly improving the intelligence, automation and controllability of the system.

[0098] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A low-power active electronic lock, characterized in that: include: A power source for providing electrical energy; A first switch module, wherein an input end of the first switch module is electrically connected to the power supply; A control module, electrically connected to the output end of the first switch module; a trigger module, electrically connected to the controlled end of the first switch module; A second switch module, wherein a controlled end of the second switch module is electrically connected to the control module, and an output end of the second switch module is electrically connected to a controlled end of the first switch module.

2. A low-power active electronic lock according to claim 1, characterized in that: The first switch module comprises: A first MOS tube, wherein a source of the first MOS tube is electrically connected to the power supply, a drain of the first MOS tube is electrically connected to the control module, and a gate of the first MOS tube is electrically connected to the trigger module.

3. The low power consumption active electronic lock according to claim 2, characterized in that: The first switch module further includes: a first capacitor, one end of which is electrically connected to the drain of the first MOS transistor, and the other end of which is grounded; a second capacitor, one end of the second capacitor being electrically connected to the gate of the first MOS transistor, and the other end of the second capacitor being grounded; a first resistor, one end of which is electrically connected to the power supply; A second resistor, one end of the second resistor is electrically connected to the other end of the first resistor, one end of the second resistor is also electrically connected to the trigger module, and the other end of the second resistor is electrically connected to the gate of the first MOS tube.

4. The low-power active electronic lock according to claim 1, characterized in that: The trigger module comprises: a first diode, wherein an anode of the first diode is electrically connected to a controlled end of the first switch module; A trigger switch, one end of the trigger switch is grounded, and the other end of the trigger switch is electrically connected to the cathode of the first diode.

5. The low-power active electronic lock according to claim 4, characterized in that: The trigger module also includes: a second diode, wherein a cathode of the second diode is electrically connected to a cathode of the first diode; a third resistor, one end of the third resistor being electrically connected to the control module, and the other end of the third resistor being electrically connected to the anode of the second diode; a fourth resistor, one end of the fourth resistor being electrically connected to the other end of the third resistor, and the other end of the fourth resistor being electrically connected to the control module; A third capacitor, one end of the third capacitor is electrically connected to the control module, and the other end of the third capacitor is electrically connected to one end of the trigger switch.

6. The low power consumption active electronic lock according to claim 1, characterized in that: The second switch module comprises: A second MOS tube, wherein a gate of the second MOS tube is electrically connected to the control module, a source of the second MOS tube is grounded, and a drain of the second MOS tube is electrically connected to the controlled end of the first switch module.

7. The low-power active electronic lock according to claim 6, characterized in that: The second switch module further includes: a third diode, an anode of the third diode being electrically connected to the control module; a fifth resistor, one end of the fifth resistor being electrically connected to the cathode of the third diode, and the other end of the fifth resistor being electrically connected to the gate of the second MOS transistor; a fourth capacitor, one end of which is electrically connected to the gate of the second MOS transistor, and the other end of which is grounded; A sixth resistor, one end of the sixth resistor is electrically connected to the gate of the second MOS tube, and the other end of the sixth resistor is grounded.

8. A method for operating a low-power active electronic lock, applied to the low-power active electronic lock as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: When the low-power active electronic lock is in an initial shutdown state, the first switch module and the second switch module are both in an off state; When the trigger module receives the trigger source, the trigger module is turned on, so that the first switch module is turned on; The power supply supplies power to the control module through the first switch module, so that the control module is turned on; The control module sends a control signal to the second switch module to turn on the second switch module, thereby keeping the first switch module turned on.

9. The low-power active electronic lock operation method according to claim 8, characterized in that: The following steps are also included: According to the standby time set inside the control module, after the standby time has passed, the control module sends a control signal to the second switch module to turn off the second switch module, thereby turning off the first switch module and shutting down the control module.

10. The operating method of the low-power active electronic lock according to claim 9, characterized in that: When the trigger module receives the trigger source, the trigger module also outputs a trigger signal to the control module.

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