Electronic lock with multiple magnetic detection functions and unlocking method thereof

Abstract

The invention relates to the technical field of electronic locks, in particular to an electronic lock with multiple magnetic detection functions and an unlocking method thereof, the electronic lock comprises a key detection mechanism and a controller, the key detection mechanism is in signal connection with the controller, and the key detection mechanism is provided with a first signal detection area and at least one second signal detection area; the first signal detection area is used for detecting the magnetic intensity of the key, and the second signal detection area is used for detecting the magnetic field parameter of the key; the first signal detection area generates an activation signal according to a first detection result of the magnetic intensity, and the activation signal is used for waking up the controller; and the controller controls the second signal detection area to be started and controls the electronic lock and / or equipment applied by the electronic lock to be in an opening state or a closing state according to a second detection result of the magnetic field parameter.

Description

Technical Field

[0001] This application relates to the technical field of electronic locks, and particularly to an electronic lock with multiple magnetic detection functions and an unlocking method. Background Art

[0002] Most of the current electronic locks on the market rely on a single magnetic detection area to perform the unlocking operation. However, in the face of extreme environmental conditions, such as strong magnetic field interference, the design of this single detection point is extremely vulnerable to external factors, which may cause false triggering or complete failure.

[0003] More critically, in application fields such as aerospace vehicles and submarines, which have extremely high requirements for convenience, safety, and reliability, the existing electronic lock technology is unable to meet their stringent safety standards. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide an electronic lock with multiple magnetic detection functions and an unlocking method to solve the above problems.

[0005] To solve the above technical problems, this application adopts the following technical solutions:

[0006] In a first aspect, this application provides an electronic lock with multiple magnetic detection functions. The electronic lock includes a key detection mechanism and a controller. The key detection mechanism is signal-connected to the controller. Inside the key detection mechanism, there is a first signal detection area and at least one second signal detection area. The first signal detection area is used to detect the magnetic strength of the key, and the second signal detection area is used to detect the magnetic field parameters of the key; the first signal detection area generates an activation signal according to the first detection result of the magnetic strength, and the activation signal is used to wake up the controller; the controller controls the second signal detection area to start, and according to the second detection result of the magnetic field parameters, controls the electronic lock and / or the device applied by the electronic lock to be in an open state or a closed state.

[0007] Further, the first signal detection area includes a switch sensing element, and the switch sensing element is used to detect the magnetic strength of the key and generate an activation signal according to the first detection result.

[0008] Further, the switch sensing element is a Hall switch or a reed switch.

[0009] Further, the first signal detection area determines whether the magnetic strength of the key is greater than a preset magnetic field threshold: if so, the first signal detection area generates an activation signal.

[0010] Further, the second signal detection area includes a first magnetic sensor and a second magnetic sensor. The first magnetic sensor is used to detect the first magnetic field intensity and the first magnetic field polarity at the first position of the key, and the second magnetic sensor is used to detect the second magnetic field intensity and the second magnetic field polarity at the second position of the key. The magnetic field parameters include the first magnetic field intensity, the first magnetic field polarity, the second magnetic field intensity, and the second magnetic field polarity.

[0011] Further, the first magnetic sensor and the second magnetic sensor are arranged at intervals, and the distance between the first magnetic sensor and the second magnetic sensor is at least 1 mm.

[0012] Further, the manifestations of the first magnetic field polarity and the second magnetic field polarity are opposite to each other.

[0013] Further, the first magnetic sensor and the second magnetic sensor are Hall elements.

[0014] In a second aspect, the present application provides an unlocking method for an electronic lock. The electronic lock includes a key detection mechanism and a controller. The key detection mechanism includes a first signal detection area and a second signal detection area. The unlocking method includes: Step 1: The first signal detection area obtains the magnetic strength of the key; Step 2: The first signal detection area determines whether the magnetic strength meets a preset first threshold: If so, the first signal detection area wakes up the controller; Step 3: The controller controls the second signal detection area to start, and the second signal detection area obtains the magnetic field parameters of the key; Step 4: The controller controls the electronic lock and / or the device applied by the electronic lock to be in an open state or a closed state according to the detection result of the magnetic field parameters.

[0015] Further, the detection result includes a first determination result and a second determination result. Step 4 specifically includes: Step 4-1: The controller obtains the first determination result, waits for a preset time period, and the controller obtains the second determination result; Step 4-2: The controller determines whether both the first determination result and the second determination result are correct: If so, the controller controls the electronic lock and / or the device applied by the electronic lock to be in an open state or a closed state.

[0016] As can be seen from the above technical solutions, the advantages and positive effects proposed by the present application are as follows:

[0017] The present application innovatively integrates two independent detection areas into the electronic lock structure. Only when the first signal detection area successfully identifies a magnetic field signal that matches it, the controller is awakened, and the controller starts the second signal detection area for detection. This design not only significantly reduces energy consumption but also takes an important step in improving the security and reliability of the electronic lock. Notably, the present application sets at least two magnetic sensors in the second signal detection area, which can improve the strong magnetic anti-interference ability of the electronic lock applied in extreme environments such as aerospace and deep sea underwater, demonstrating excellent environmental adaptability and stability.

[0018] In addition, since the electronic lock of the present application is unlocked inductively, the surface of the lock can be very flat, with strong concealment, and there is no need to turn the key during the unlocking process, so the lock has a long service life and good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above content of the present application and the following specific embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are only examples of the claimed technical solutions.

[0020] Figure 1 is the structural block diagram of the electronic lock of the present application;

[0021] Figure 2 is the front view of the cored electronic lock of the present application;

[0022] Figure 3 is the side perspective view of the cored electronic lock of the present application;

[0023] Figure 4 is the perspective view of the concave electronic lock of the present application;

[0024] Figure 5 is the perspective view of the flat electronic lock of the present application;

[0025] Figure 6 is the schematic diagram of the switch sensing element of the present application;

[0026] Figure 7 is the schematic diagram of the magnetic sensor of the present application;

[0027] Figure 8 is the state schematic diagram of the electronic lock of the present application;

[0028] Figure 9 is the flowchart of the electronic lock unlocking method of the present application;

[0029] Figure 10 is the installation schematic diagram of the first electronic lock application scenario of the present application;

[0030] Figure 11 is the installation schematic diagram of the second electronic lock application scenario of the present application;

[0031] Figure 12 is the installation schematic diagram of the third electronic lock application scenario of the present application.

[0032] Among them, the reference numerals are explained as follows:

[0033] Electronic lock 1;

[0034] Power supply: 10;

[0035] Key detection mechanism: 20;

[0036] First signal detection area: 21;

[0037] Switch sensing element: 211;

[0038] Second signal detection area: 22;

[0039] Magnetic sensing component: 221;

[0040] Controller: 30;

[0041] Lock face: 40;

[0042] Lock hole: 41;

[0043] Hatch door 50;

[0044] Upper cover 60;

[0045] Door panel 70. Detailed implementation manners

[0046] The detailed features and advantages of the present application will be described in detail in the following detailed implementation manners. The content is sufficient for any person skilled in the art to understand the technical content of the present application and implement it accordingly. And according to the specification, claims and drawings disclosed in this specification, those skilled in the art can easily understand the related purposes and advantages of the present application.

[0047] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0048] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present application.

[0049] To make the purpose, technical solution and advantages of the present application clearer, the following will further describe the implementation manners of the present application in detail with reference to the drawings.

[0050] Please refer to Figure 1As shown in the figure, the present application provides an electronic lock 1 with multiple magnetic detection functions. The electronic lock 1 includes a power supply 10, a key detection mechanism 20, and a controller 30. Among them, the key detection mechanism 20 is signal-connected to the controller 30, and the power supply 10 is used to supply power to the key detection mechanism 20 and the controller 30 respectively. Inside the key detection mechanism 20, there are a first signal detection area 21 and a second signal detection area 22. The first signal detection area 21 is used to detect the overall magnetic strength of the key, and the second signal detection area 22 is used to detect the magnetic field parameters of the key.

[0051] The first signal detection area 21 generates an activation signal according to the first detection result of the magnetic strength, and the activation signal is used to wake up the controller 30.

[0052] After the controller 30 is woken up, the controller 30 controls the second signal detection area 22 to be powered on and started, and the controller 30 controls the electronic lock 1 and / or the device applied by the electronic lock 1 to be in an open state or a closed state according to the second detection result of the magnetic field parameters.

[0053] Specifically, there are no active components inside the key detection mechanism 20, and there are no gaps on the outer surface of the electronic lock 1. Therefore, it is particularly suitable for scenarios that pay attention to sealing, such as space capsules, underwater cabins, and underwater instrument equipment.

[0054] Please refer to Figure 2 and Figure 3 , the appearance of the electronic lock 1 can be a traditional lock with a "core". The lock face 40 of the electronic lock 1 is provided with a keyhole 41. Inside the keyhole 41 of the key detection mechanism 20, there are a first signal detection area 21 and a second signal detection area 22. The first signal detection area 21 and the second signal detection area 22 can be located together on the upper side or the lower side of the keyhole 41, or the first signal detection area 21 and the second signal detection area 22 are respectively located on the upper side and the lower side.

[0055] When both the first signal detection area 21 and the second signal detection area 22 are on the same side of the lock face 40 (whether it is the upper side or the lower side), their positions relative to the lock face 40 can be flexibly adjusted. Specifically, the first signal detection area 21 can be configured to be closer to the lock face 40 than the second signal detection area 22. Conversely, the second signal detection area 22 can also be set to be closer to the lock face 40 than the first signal detection area 21, or the first signal detection area 21 and the second signal detection area 22 are overlapped and set together.

[0056] When the first signal detection area 21 and the second signal detection area 22 are respectively arranged on the upper side and the lower side of the lock face 40, there are multiple possibilities for their position layouts in the vertical direction.

[0057] Specifically, the first signal detection area 21 can be configured to be closer to the lock face 40 than the second signal detection area 22.

[0058] Alternatively, the second signal detection area 22 may be closer to the lock surface 40 than the first signal detection area 21 .

[0059] In another case, the vertical distances between the first signal detection area 21 and the second signal detection area 22 and the lock surface 40 can be kept equal.

[0060] Specifically, the appearance of the electronic lock 1 can be similar to the shape of a traditional lock, and the lock surface 40 is provided with a key insertion hole (lock hole 41). The distance between the first signal detection area 21 and the second signal detection area 22 and the lock surface 40 can be 0.2mm-20mm, so as to facilitate sensing the magnetic field on the key inserted into the lock hole 41.

[0061] When the correct key is inserted into the lock hole 41 and the key is inserted in place, the controller 30 can be automatically unlocked within 1 second through the key detection mechanism 20 without rotating the key.

[0062] It can be understood that the electronic lock 1 of the present application is a magnetic induction lock based on an electronic circuit. One of its major features is that the user is unaware of the key identification and verification process (refer to the card swiping unlocking method), and there is no need to mechanically turn the key.

[0063] The unlocking part of the electronic lock 1 may be a motor-driven mechanical structure that unlocks the lock of the electronic lock 1 , such as unlocking / opening a hatch.

[0064] The electronic lock 1 may also be in communication connection with the internal electronic system of the application device, and unlocking may be represented as starting the device.

[0065] For example, when the controller 30 instructs the electronic lock 1 to unlock, the buoy equipment, beacon equipment and navigation equipment are immediately activated and put into operation. This is intended to ensure that these key devices are protected from unauthorized activation, thereby effectively improving the safety of the equipment.

[0066] The key detection mechanism 20 may be made of non-magnetic metal, such as aluminum, magnesium, copper, titanium or alloys thereof, or plastic material, so as to avoid affecting the magnetic induction capabilities of the first signal detection area 21 and the second signal detection area 22 .

[0067] Please refer to Figure 4 and Figure 5 The electronic lock 1 of the present application is not limited to the shape of a traditional lock and may not have a lock hole 41. It may be just a plane, groove or protrusion that can accommodate or fit a key. The key shape is like a round appearance or a square card of an access card / elevator card. When the key is close to a certain distance from the electronic lock 1, the electronic lock 1 automatically senses and unlocks.

[0068] Specifically, the lock face 40 of the flat lock does not contain the traditional lock hole 41 structure, but presents a more concise and concealed form. The lock face 40 of the flat lock can be a completely flat plane or a panel designed to be recessed or protruded.

[0069] It can be understood that in certain application scenarios, such a design not only improves the aesthetics of the lock, but more importantly enhances its security, because without the obvious lock hole 41, the risk of illegal intrusion is greatly reduced.

[0070] When the electronic lock 1 is a flat lock, the first signal detection area 21 and the second signal detection area 22 of the key detection mechanism 20 can either be separated from each other and independently set at different positions on the lock face 40, or overlap with each other, that is, there is an intersection in the spatial distribution on the lock face 40.

[0071] The setting of the first signal detection area 21 and the second signal detection area 22 can be selected depending on the specific application requirements and the overall structural design of the electronic lock 1.

[0072] It can be understood that such a design flexibility of the first signal detection area 21 and the second signal detection area 22 ensures that in different application scenarios, the electronic lock 1 can adjust the layout of its detection area according to actual needs to achieve the best performance.

[0073] The first signal detection area 21 includes a switch sensing element 211, and the switch sensing element 211 can be used to detect the magnetic strength of the key and generate an activation signal according to the first detection result.

[0074] Specifically, the switch sensing element 211 determines whether the magnetic strength of the external key is greater than a preset magnetic field threshold: if so, the switch sensing element generates an activation signal.

[0075] There is one or more switch sensing elements 211 in the first signal detection area 21, and only when the external key is a magnetic object with a certain magnetic strength can the switch sensing element 211 generate an activation signal.

[0076] It can be understood that the preset magnetic field threshold can be understood as a preset magnetic field strength threshold. By setting the magnetic field threshold, it is possible to prevent the controller from being accidentally awakened, thereby increasing unnecessary power consumption.

[0077] In addition, this setting can also increase the cost of imitating the corresponding key. Only keys with sufficient magnetic field strength can make the first signal detection area 21 generate an activation signal for subsequent unlocking and matching work, further improving the security of the electronic lock 1.

[0078] Please refer to Figure 6, the switch sensing element 211 can be a Hall switch. This Hall switch senses the magnetic field signal transmitted by an external magnetic field based on the Hall effect and outputs a corresponding switch signal accordingly.

[0079] When an external magnetic field acts on the Hall switch, the Hall element inside it will generate a change in the Hall voltage. Once this Hall voltage exceeds a preset threshold, the switch will trigger an action, thereby changing its output state and effectively realizing the connection or disconnection control of the circuit.

[0080] When the Hall chip of the Hall switch is in a magnetic field, the carriers inside it will be affected by the Lorentz force, thereby generating a voltage at the output end of the Hall chip. The magnitude of this voltage is related to the strength and direction of the magnetic field. In order to determine whether the magnetic field signal of the external magnetic field parameter is greater than the preset magnetic field threshold, a threshold voltage needs to be set. When the voltage output by the Hall chip exceeds this threshold voltage, it is considered that the magnetic field signal of the external magnetic field parameter has been detected. Otherwise, it can be considered that the magnetic field signal of the external magnetic field parameter has not been detected.

[0081] In addition, the Hall switch has high reliability and stability. Since there is no mechanical moving part inside it, problems such as wear and aging are avoided. Moreover, the Hall switch has almost no power consumption in the static state and only starts to consume electrical energy when the magnetic field changes, which is beneficial to reducing the power consumption of the electronic lock 1 and achieving the purpose of long-term operation.

[0082] In addition, since the Hall switch does not require a mechanical moving part, its volume can be made smaller, which is convenient for integration into the electronic lock 1 and facilitates the internal structural layout of the electronic lock 1. In terms of anti-interference, the Hall switch has strong anti-interference ability and can work stably in a relatively harsh environment.

[0083] The switch sensing element 211 can also be a reed switch. The reed switch is also called a dry reed tube. The dry reed tube is an electric switch operated by an applied magnetic field. Specifically, the dry reed tube is composed of two reed blades sealed in a glass tube. These two reed blades are usually composed of two metals, iron and nickel, and they are in an overlapping state but there is a small gap in the middle.

[0084] In addition, the contacts on these two reed blades are usually plated with a very hard metal, such as rhodium and ruthenium, to improve the life of the switching times. Nitrogen or some inert gases are injected into the glass tube. In order to improve the performance of the switching voltage, the inside of the glass tube can be made into a vacuum state.

[0085] The reed switch works based on the principle of electromagnetic induction.

[0086] Specifically, in the initial state, the two magnetic reed switches are not in contact. When a magnetic field is generated by a magnet or an electromagnetic coil, the applied magnetic field causes different polarities to be generated near the end positions of the two magnetic reed switches.

[0087] When the magnetic force exceeds the elastic force of the magnetic reed switches themselves, the two magnetic reed switches will attract and conduct the circuit. When the magnetic field weakens or disappears, the magnetic reed switches will release due to their own elasticity, and the contact surfaces will separate to disconnect the circuit.

[0088] It can be understood that the magnetic reed switch performs excellently in terms of electrical characteristics. Due to its low internal resistance, it can withstand a large current, which enables it to work stably under various electrical load conditions and is not likely to cause the magnetic reed switch to be affected by arcs or electric shocks.

[0089] The switching principle of the magnetic reed switch is that the magnetic field signal based on the external magnetic field parameters causes the internal metal reed to deform, thereby realizing the switching action. Therefore, the detection sensitivity of the magnetic reed switch to the magnetic field signal of the external magnetic field parameters can be adjusted by methods such as adjusting the distance between the magnetic reed switch and the external key sensing area or using a sensitivity adjustment circuit.

[0090] Please refer to Figure 7 , the second signal detection area 22 includes a magnetic sensing component 221. The magnetic sensing component 221 includes at least a first magnetic sensor and a second magnetic sensor. The first magnetic sensor is used to detect the first magnetic field strength and the first magnetic field polarity at its corresponding position, and the second magnetic sensor is used to detect the second magnetic field strength and the second magnetic field polarity at its corresponding position.

[0091] The first magnetic sensor and the second magnetic sensor can be Hall elements. The controller 30 detects and obtains the magnetic field strength and polarity at the corresponding positions of the first magnetic sensor and the second magnetic sensor through the Hall elements.

[0092] The magnetic field parameters include the first magnetic field strength, the first magnetic field polarity, the second magnetic field strength, and the second magnetic field polarity. Among them, the manifestations of the first magnetic field polarity and the second magnetic field polarity are opposite to each other to improve the security of the electronic lock 1.

[0093] It can be understood that the Hall element is essentially a magnetic sensor based on the Hall effect. The Hall effect is an electromagnetic phenomenon. When a current passes through a conductor (Hall element) located in a magnetic field, the magnetic field will generate an electric potential difference (Hall voltage) on both sides of the conductor. When a current passes through the Hall element, if the element is affected by a magnetic field perpendicular to the current direction, then an electric potential difference, that is, the Hall voltage, will be generated on both sides of the element. According to the magnitude of the Hall voltage and the known parameters of the Hall element (such as sensitivity, current magnitude, etc.), the intensity of the magnetic field can be calculated.

[0094] In actual measurement, the polarity of the magnetic field can be judged by observing the positive or negative of the Hall voltage. Specifically, if the Hall voltage is positive, the magnetic field direction is consistent with the direction judged by the left-hand rule. If the Hall voltage is negative, the magnetic field direction is opposite to the direction judged by the left-hand rule.

[0095] It can be understood that when the magnetic field direction is perpendicular to the current direction, the left-hand rule is used to judge the polarity of the Hall voltage: point the left thumb in the current direction, the direction in which the four fingers are bent is the magnetic field direction, and the direction in which the index finger is straight is the polarity of the Hall voltage.

[0096] Hall elements have many advantages, such as high sensitivity, fast response speed, wide measurement range, etc. The Hall voltage generated by the Hall element is related to the magnetic field strength, current magnitude and material characteristics of the Hall element.

[0097] It can be understood that the distance between the first magnetic sensor and the second magnetic sensor is at least 1 mm. By dispersing the first magnetic sensor and the second magnetic sensor at intervals, the problem of misoperation caused by a single magnetic sensor due to faults or positions can be avoided.

[0098] Please refer to Figure 8 , the power supply 10 is connected to the first signal detection area 21, the second signal detection area 22 and the controller 30. The electronic lock 1 mainly includes a standby state, an activation state, a detection state and a sleep state.

[0099] Specifically, when the electronic lock 1 is in the standby state, the controller 30 is in the sleep state, the second signal detection area 22 and the actuator controlled by the electronic lock 1 are not powered on, and only the first signal detection area 21 is in the working state to detect whether there is a key or a key-like object outside the electronic lock 1.

[0100] When the first signal detection area 21 detects an object such as a key, the electronic lock 1 enters the activation state from the sleep state. The first signal detection area 21 wakes up the controller 30, and the controller 30 enters the running state. And the controller 30 controls the power supply 10 to power on the second signal detection area 22 so that the second signal detection area 22 also enters the running state.

[0101] When the second signal detection area 22 enters the running state, the electronic lock 1 enters the detection state from the activation state. The second signal detection area 22 detects the magnetic field parameters of the key, and the controller 30 controls the electronic lock 1 and / or the device applied by the electronic lock 1 according to the detection result of the magnetic field parameters.

[0102] Subsequently, the electronic lock 1 enters the sleep state from the detection state. The controller 30 controls the power supply 10 to power off the second signal detection area 22, and then the controller 30 goes to sleep.

[0103] When the second signal detection area 22 is powered on, the controller 30 detects the first magnetic sensor and the second magnetic sensor in the second signal detection area 22 at least twice, and the detection interval can be 1 ms to 500 ms to obtain at least two determination results respectively.

[0104] Specifically, the controller 30 determines whether the magnetic field strength and magnetic field polarity of the first magnetic sensor and the second magnetic sensor in the second signal detection area 22 meet the preset conditions. If both detections are verified to meet the conditions continuously for two times, the matching result is successful, and the controller further controls the actuator to respond to the unlocking or starting action; otherwise, the controller 30 determines that it is an illegal key, and then the controller 30 automatically turns off the power supply circuit of the second signal detection area, and the electronic lock 1 re-enters the low-power standby state.

[0105] Exemplarily, generally, it is considered valid only when two or more different polarities are detected simultaneously, so as to avoid forced unlocking by strong magnetic fields. This is also the reason why there are at least two magnetic sensors in the detection area. If both verifications are in line for two consecutive times, the key recognition is successful, and the controller further controls the actuator to respond to the unlocking or starting action; otherwise, it is determined that it is an illegal key; then the controller automatically turns off the detection circuit, and the electronic lock 1 re-enters the standby state.

[0106] The controller 30 can be an MCU (MicroController Unit, microprocessor). After the control module is activated, it obtains the internal magnetic field parameters of the second signal detection area 22. Specifically, the internal magnetic field parameters of the second signal detection area 22 are the magnetic field strength and magnetic field polarity corresponding to the first magnetic sensor and the second magnetic sensor.

[0107] The controller 30 receives the relevant data of the magnetic field strength and polarity from the first magnetic sensor and the second magnetic sensor, and then carefully compares these data with the preset rules.

[0108] Once the data meets the established rule conditions, the controller 30 issues a control instruction to the key detection mechanism 20 to unlock the electronic lock 1 and enter the unlocking state; conversely, if the data does not match, the electronic lock 1 continues to maintain its locked state.

[0109] It can be understood that the first magnetic sensor and the second magnetic sensor are designed to detect the magnetic field strength and polarity inside the key detection mechanism 20 to resist the interference that may be brought by the external extreme strong magnetic field environment, prevent the electronic lock 1 from being unlocked due to the mis-triggering of the external strong magnetic field, ensure the safety performance and reliable operation of the electronic lock 1, and provide a higher level of security protection for users.

[0110] When the judgment duration for the controller 30 to determine whether the internal magnetic field parameter meets the preset second threshold exceeds the preset time threshold, the controller 30 stops working, and the first signal detection area 21 rechecks the external magnetic field parameter of the detection area to avoid the problem of incorrect unlocking of the electronic lock 1.

[0111] Please refer to Figure 9 , based on the above inventive concept, the present application also provides an electronic lock unlocking method, which is applied to the above-mentioned electronic lock with multiple magnetic detection functions. The specific steps include:

[0112] Step 1: The first signal detection area obtains the magnetic strength of the key.

[0113] Step 2: The first signal detection area determines whether the magnetic strength meets the preset first threshold: If so, the first signal detection area wakes up the controller; if not, step 1 is executed again.

[0114] Step 3: The controller controls the second signal detection area to start, and the second signal detection area obtains the magnetic field parameter of the key.

[0115] Step 4: The controller controls the electronic lock and / or the device applied by the electronic lock to be in an open state according to the detection result of the magnetic field parameter.

[0116] Among them, the setting of the first threshold can be flexibly adjusted according to the specific application scenario where the electronic lock is located, and there is also relevant content description in the above-mentioned electronic lock part, so it will not be elaborated in detail here.

[0117] Specifically, step 4 includes: Step 4-1: The controller obtains the first determination result, waits for a preset duration, and the controller obtains the second determination result.

[0118] Step 4-2: The controller determines whether both the first determination result and the second determination result are correct:

[0119] If so, the controller controls the electronic lock and / or the device applied by the electronic lock to be in an open state or a closed state;

[0120] If not, the controller powers off the second signal detection area and executes step 1 again.

[0121] It can be understood that the controller determines that both the determination results of at least two times are correct according to the number of multiple magnetic sensors, and the controller will control the electronic lock and / or the device applied by the electronic lock to be in an open state or a closed state. Such a setting can improve the strong magnetic anti-interference ability of the electronic lock applied in extreme environments such as aerospace and deep underwater.

[0122] Please refer to Figure 10 , in the first electronic lock application scenario, the electronic lock provided by the present application can be used as the door lock of the space capsule hatch or the submersible hatch.

[0123] Exemplarily, the outer shape of the electronic lock 1 is a flat lock. The identification area of the electronic lock 1 is set on the hatch 50 or near the hatch 50. Specifically, the identification area of the electronic lock 1 has a groove, and the groove is used for the staff to determine the position of the identification area. When the key is placed in the identification area, the electronic lock 1 can execute the unlocking method of the electronic lock 1 described above to realize the opening or closing of the hatch 50 of the space capsule or the hatch 50 of the submersible.

[0124] Please refer to Figure 11 and Figure 12 , in the second and third application scenarios of the electronic lock, the electronic lock provided by the present application can be used as an activation lock for buoy devices, beacon devices, and navigation mark devices.

[0125] The electronic lock 1 can be set on components such as the upper cover 60, bottom cover, cabin body, etc. of these devices, or on the door panel 70. The corresponding identification area of the electronic lock 1 is set on the surface of the device. When the staff brings the key close to the identification area of the electronic lock 1, the device switches from the original closed state to the open state, and the device starts to work.

[0126] It can be understood that the unlocking method of this electronic lock 1 is similar to that through NFC (Near Field Communication). Electronic devices can perform non-contact point-to-point data transmission and information exchange when they are close to each other.

[0127] However, it should be noted that there are significant differences between magnetic induction unlocking and NFC in terms of principle, application scenario, and security. NFC is a more extensive wireless communication technology, while magnetic induction unlocking is a specific unlocking method and does not involve data transmission.

[0128] The main core purpose of the present application is to innovatively integrate two independent detection areas in the structure of the electronic lock 1. Specifically, only when the first signal detection area 21 first successfully identifies an external magnetic field signal that matches its preset, the controller 30 is awakened. The controller 30 activates the second signal detection area 22, can establish an electrical connection with the first signal detection area 21, and then enters its preset working state.

[0129] The second signal detection area 22 undertakes the task of precisely monitoring the internal magnetic field parameters of the electronic lock 1, aiming to effectively resist the interference that may be brought by an extremely strong magnetic field environment, thereby avoiding the risk of the electronic lock 1 being accidentally triggered to open, and ensuring the safety and reliability of the electronic lock 1.

[0130] It should be understood that the term "and / or" in this text is merely a description of the relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Here, A and B can be singular or plural.

[0131] In addition, the character " / " in this text generally represents an "or" relationship between the associated objects before and after, but it may also represent an "and / or" relationship. The specific meaning can be understood by referring to the context before and after.

[0132] In this application, "at least one" means one or more, and "a plurality" means two or more. "At least one of the following (items)" or similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, a - b, a - c, b - c, or a - b - c, where a, b, c can be single or multiple.

[0133] The terms and expressions used here are only for description, and this application should not be limited to these terms and expressions. Using these terms and expressions does not mean excluding any equivalent features of the illustration and description (or parts thereof). It should be recognized that various modifications that may exist should also be included within the scope of the claims. Other modifications, changes, and substitutions may also exist. Correspondingly, the claims should be regarded as covering all such equivalents.

[0134] Similarly, it should be noted that although this application has been described with reference to the current specific embodiments, those of ordinary skill in the art in this technical field should recognize that the above embodiments are only used to illustrate this application, and various equivalent changes or substitutions can be made without departing from the spirit of the invention. Therefore, as long as the changes and variations of the above embodiments are within the scope of the spirit of this application, they will fall within the scope of the claims of this application.

Claims

1. An electronic lock with multiple magnetic detection functions, characterized in that: The electronic lock includes a key detection mechanism and a controller, wherein the key detection mechanism is connected to the controller by signal. The key detection mechanism is provided with a first signal detection area and at least one second signal detection area, the first signal detection area is used to detect the magnetic strength of the key, and the second signal detection area is used to detect the magnetic field parameters of the key; The first signal detection area generates an activation signal according to the first detection result of the magnetic strength, and the activation signal is used to wake up the controller; The controller controls the second signal detection area to start, and controls the electronic lock and / or a device used by the electronic lock to be in an on state or a off state according to a second detection result of the magnetic field parameter.

2. The electronic lock according to claim 1, characterized in that: The first signal detection area includes a switch sensor element, and the switch sensor element is used to detect the magnetic strength of the key and generate the activation signal according to the first detection result.

3. The electronic lock according to claim 2, characterized in that: The switch sensing element is a Hall switch or a reed switch.

4. The electronic lock according to claim 1, characterized in that: The first signal detection area determines whether the magnetic strength of the key is greater than a preset magnetic field threshold: if so, the first signal detection area generates the activation signal.

5. The electronic lock according to claim 1, characterized in that: The second signal detection area includes a first magnetic sensor and a second magnetic sensor, the first magnetic sensor is used to detect a first magnetic field strength and a first magnetic field polarity at a first position of the key, the second magnetic sensor is used to detect a second magnetic field strength and a second magnetic field polarity at a second position of the key, and the magnetic field parameters include the first magnetic field strength, the first magnetic field polarity, the second magnetic field strength and the second magnetic field polarity.

6. The electronic lock according to claim 5, characterized in that: The first magnetic sensor and the second magnetic sensor are spaced apart from each other, and the distance between the first magnetic sensor and the second magnetic sensor is at least 1 mm.

7. The electronic lock according to claim 5, characterized in that: The first magnetic field polarity and the second magnetic field polarity are opposite to each other.

8. The electronic lock according to claim 5, characterized in that: The first magnetic sensor and the second magnetic sensor are Hall elements.

9. A method for unlocking an electronic lock, characterized in that: The electronic lock comprises: a key detection mechanism and a controller, the key detection mechanism comprises a first signal detection area and a second signal detection area, and the unlocking method comprises: Step 1: The first signal detection area obtains the magnetic strength of the key; Step 2: The first signal detection area determines whether the magnetic strength meets a preset first threshold value: if so, the first signal detection area wakes up the controller; Step 3: The controller controls the second signal detection area to start, and the second signal detection area obtains the magnetic field parameters of the key; Step 4: The controller controls the electronic lock and / or the device used by the electronic lock to be in an on state or a off state according to the detection result of the magnetic field parameter.

10. The unlocking method according to claim 9, characterized in that: The detection result includes a first determination result and a second determination result, and step 4 specifically includes: Step 4-1: the controller obtains the first determination result, waits for a preset time, and then obtains the second determination result; Step 4-2: The controller determines whether the first determination result and the second determination result are both correct: if so, the controller controls the electronic lock and / or the device applied by the electronic lock to be in an on state or a off state.

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