An intelligent lock, a battery management system and a method

Abstract

The present invention discloses a method for managing the battery of an intelligent lock, belonging to the technical field of intelligent locks. It includes Step 1: determining whether the power of the first battery 1 is lower than a first preset value. If so, Step 2 is executed; if not, Step 3 is executed. Step 2: turning off the power supply of the first battery 1 to the intelligent lock, controlling the second battery 8 to supply power to the intelligent lock. If the first battery 1 is charging the second battery 8, then turning off the charging of the first battery 1 to the second battery 8, and then ending the execution. Step 3: determining whether the power of the first battery 1 is greater than a second preset value. Aiming at the technical problem that the intelligent lock cannot be opened during battery charging in the prior art, it can effectively manage the charging and discharging process of the second battery of the intelligent lock, and will not cause the intelligent lock to have a power-off situation, and the intelligent lock can be normally opened when the first battery is charging.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent locks, and particularly relates to an intelligent lock, a battery management system and a method. Background Art

[0002] Traditional intelligent locks are charged by batteries. Currently, lithium batteries with high energy density are widely used for charging in existing intelligent locks. When the power of the lithium battery is insufficient, the lithium battery needs to be taken out of the intelligent lock for charging. During the charging of the lithium battery, the intelligent lock is in a state without battery power supply; the charging time of the lithium battery is relatively long; if the user forgets that the intelligent lock has no power at this time and closes the door casually, it will lead to the situation that the user cannot open the door. Summary of the Invention

[0003] 1. Technical Problems to be Solved by the Invention

[0004] Aiming at the technical problem that the existing intelligent lock cannot be opened during battery charging, the present invention provides an intelligent lock battery management method, which can effectively manage the charging and discharging process of the second battery of the intelligent lock, and will not cause the intelligent lock to lose power. The intelligent lock can be opened normally during the charging of the first battery.

[0005] 2. Technical Solutions

[0006] To solve the above problems, the technical solutions provided by the present invention are as follows:

[0007] An intelligent lock battery management method includes:

[0008] Step 1: Judge whether the power of the first battery 1 is lower than a first preset value. If so, execute Step 2; if not, execute Step 3;

[0009] Step 2: Turn off the power supply of the first battery 1 to the intelligent lock, control the second battery 8 to supply power to the intelligent lock. If the first battery 1 is charging the second battery 8, turn off the charging of the first battery 1 to the second battery 8, and then end the execution;

[0010] Step 3: Judge whether the power of the first battery 1 is greater than a second preset value. If so, execute Step 4; if not, execute Step 5;

[0011] Step 4: Judge whether the first battery 1 is charging the second battery 8. If so, execute Step 7; if not, execute Step 8;

[0012] Step 5: Judge that the power of the first battery 1 is greater than or equal to the first preset value and less than or equal to the second preset value, and continue to execute Step 6.

[0013] Step 6: Do not perform any operation on the second battery 8, and the second battery 8 is in a state of not charging and not discharging, and then end the execution;

[0014] Step 7: Determine whether the second battery 8 is fully charged. If so, end the charging of the second battery 8 by the first battery 1 and end the execution. If not, the first battery 1 continues to charge the second battery 8 and end the execution;

[0015] Step 8: Determine whether the power of the second battery 8 is less than a third preset value. If so, execute Step 9. If not, execute Step 6;

[0016] Step 9: Control the first battery 1 to charge the second battery 8. If the second battery 8 is supplying power to the smart lock, turn off the discharge of the second battery 8 and control the first battery 1 to supply power to the smart lock.

[0017] The first battery 1 is an external battery and is set as a detachable battery, and the second battery 8 is an internal battery and is set as a non-detachable battery. After the smart lock is awakened, the judgment is started. When it is judged that the power of the first battery 1 is less than the first preset value, the second battery 8 cuts in to supply power, and some functions of the smart lock are turned off to ensure the basic functions of the smart lock, so as to ensure that the user can use the smart lock without interruption. After the second battery 8 cuts in to supply power, each time the door is opened or closed or the handle is pressed, the smart lock will be awakened, and the voice module will remind the user of the power status of the first battery 1 and remind the user to replace the first battery 1 in time. After replacing the first battery 1, when the smart lock is awakened and it is judged that the power of the first battery 1 is greater than the second preset value and is in a high power state, if it is judged that the power of the second battery 8 is lower than the third preset value, the first battery 1 will charge the second battery 8 in time to ensure that the second battery 8 can always be ready to handle abnormal situations such as the power failure or removal of the first battery 1. When the power of the first battery 1 is greater than or equal to the first preset value and less than or equal to the second preset value after being used for a period of time, it is in a low power state. At this time, the second battery 8 has been fully charged, and at this time, the second battery 8 is in a state of not charging and not discharging, and the smart lock is powered by the first battery 1. The first battery 1 and the second battery 8 are only a naming method of this embodiment, and the number of batteries in the battery management system is not limited. Through the management of the charging process of the smart lock, the smart lock will not have a power-off situation, and the door can be opened normally when the smart lock is charging.

[0018] Optionally, the first battery 1 supplies power to the basic function module and the auxiliary function module of the smart lock, and the second battery 8 supplies power to the basic function module of the smart lock.

[0019] Optionally, it is characterized in that the battery management system includes a main control module 5, a first battery 1, a second battery 8, a first battery power detection element 2, a second battery power detection element 7, a charging module 6, and a discharging module 4. The negative electrode of the first battery 1 is electrically connected to one end of the first battery power detection element 2, and the negative electrode of the second battery 8 is electrically connected to one end of the second battery power detection element 7. The other end of the first battery power detection element 2 is respectively electrically connected to the positive electrode of the first battery 1 and the main control module 5. The other end of the second battery 8 power detection element is respectively electrically connected to one end of the charging module 6 and one end of the discharging module 4. The main control module 5 controls the discharging module 4 and the charging module 6 respectively through a discharging enable pin 9 and a charging enable pin 10.

[0020] Optionally, the intelligent lock includes a basic function module and an auxiliary function module. The basic function module includes a main control module 5, a fingerprint module, a motor module, a password input module, and a voice module. The auxiliary function module includes a wireless communication module, a face recognition module, a cat's eye module, and a backlight module. The main control module 5 is electrically connected to the fingerprint module, the password input module, the motor module, the face recognition module, the cat's eye module, the voice module, and the backlight module. The wireless communication module is electrically connected to the cat's eye module. The backlight module is electrically connected to the face recognition module, the fingerprint module, and the password input module. The first battery 1 is electrically connected to both the basic function module and the auxiliary function module. The second battery 8 is electrically connected to the basic function module. A notch for inserting the first battery 1 is provided on the outer wall of the intelligent lock.

[0021] Optionally, the positive electrode of the first battery 1 is electrically connected to one end of a control circuit. The other end of the control circuit is respectively electrically connected to the main control module 5, another function module 3, and the other end of the charging module 6. The control circuit includes a diode D1, a first capacitor C1, a second capacitor C2, and a first resistor R1. The anode of the diode D1 is respectively electrically connected to the positive electrode of the first battery 1 and the 1 end of the second capacitor C2. The cathode of the diode D1 is respectively electrically connected to one end of the first capacitor C1, one end of the first resistor R1, another function module 3, the main control module 5, and the other end of the charging module 6. The 2 end of the second capacitor C2 is electrically connected to the main control module 5 and the other end of the first resistor R1. The other end of the discharging module 4 is electrically connected to another function module 3. The negative electrode of the first battery 1, the other end of the first capacitor C1, and the negative electrode of the second battery 8 are all grounded.

[0022] Optionally, the control circuit is a control chip, and the control chip is respectively electrically connected to the positive electrode of the first battery 1 and the main control module 5.

[0023] Optionally, the motor module is a stepping motor.

[0024] Optionally, the password input module includes a touch screen and an RC control circuit, and the RC control circuit is electrically connected to the main control module 5.

[0025] Optionally, the fingerprint module includes a fingerprint collection module and a fingerprint recognition module, and the fingerprint collection module is connected to the fingerprint recognition module.

[0026] Optionally, the face recognition module includes a camera and a face algorithm module connected in sequence.

[0027] 3. Beneficial effects

[0028] Adopting the technical solution provided by the present invention, compared with the prior art, it has the following beneficial effects:

[0029] (1) The dual-battery management method in the embodiment of the present invention can effectively manage the charging process of the smart lock, prevent the smart lock from losing power, and enable normal door opening during the charging of the smart lock.

[0030] (2) Through the setting of the control circuit in the embodiment of the present invention, not only can the removal state of the first battery 1 be detected, but also the power supply can be continuously provided during the gap time when the first battery 1 is removed and the second battery 8 cuts in for power supply, ensuring the use of the smart lock.

[0031] (3) When the first battery 1 has no power in the embodiment of the present invention and the second battery 2 cuts in for power supply, only the basic function module of the smart lock is powered, saving power and ensuring the use of the basic functions of the smart lock. Description of the drawings

[0032] Figure 1 It is a power supply block diagram of a smart lock battery management method proposed in an embodiment of the present invention;

[0033] Figure 2 It is a dual-battery management logic diagram of a smart lock battery management method proposed in an embodiment of the present invention;

[0034] Figure 3 It is a dual-battery management circuit diagram of a smart lock battery management method proposed in an embodiment of the present invention.

[0035] Explanation of the reference numerals in the schematic diagram:

[0036] 1. First battery; 2. First battery power detection element; 3. Other function modules; 4. Discharge module; 5. Main control module; 6. Charging module; 7. Second battery power detection element; 8. Second battery; 9. Discharge enable pin; 10. Charging enable pin. Detailed implementation manners

[0037] To further understand the content of the present invention, the present invention will be described in detail with reference to the appended Figures 1-3 drawings and embodiments.

[0038] Example 1

[0039] Combined with the attached Figures 1-3 , an intelligent lock battery management method in this embodiment includes:

[0040] Step 1: Determine whether the power of the first battery 1 is lower than the first preset value. If so, execute Step 2; if not, execute Step 3.

[0041] Step 2: Turn off the power supply of the first battery 1 to the intelligent lock, control the second battery 8 to supply power to the intelligent lock. If the first battery 1 is charging the second battery 8, turn off the charging of the first battery 1 to the second battery 8, and then end the execution.

[0042] Step 3: Determine whether the power of the first battery 1 is greater than the second preset value. If so, execute Step 4; if not, execute Step 5.

[0043] Step 4: Determine whether the first battery 1 is charging the second battery 8. If so, execute Step 7; if not, execute Step 8.

[0044] Step 5: Determine that the power of the first battery 1 is greater than or equal to the first preset value and less than or equal to the second preset value, and continue to execute Step 6.

[0045] Step 6: Do not perform any operation on the second battery 8, and the second battery 8 is in a state of not charging and not discharging, and then end the execution.

[0046] Step 7: Determine whether the second battery 8 is fully charged. If so, end the charging of the first battery 1 to the second battery 8 and end the execution; if not, the first battery 1 continues to charge the second battery 8 and end the execution.

[0047] Step 8: Determine whether the power of the second battery 8 is less than the third preset value. If so, execute Step 9; if not, execute Step 6.

[0048] Step 9: Control the first battery 1 to charge the second battery 8. If the second battery 8 is supplying power to the intelligent lock, turn off the discharge of the second battery 8, and control the first battery 1 to supply power to the intelligent lock.

[0049] The intelligent lock is normally in a sleep state, and all functional modules of the intelligent lock are in a low-power state during the sleep state. When the intelligent lock is triggered by an external interrupt signal, it will be awakened. The external interrupt signals include the interrupt generated by touching the intelligent lock button, the interrupt generated by touching the fingerprint module of the intelligent lock, the interrupt generated by pressing the handle of the intelligent lock, the interrupt generated by touching the door opening / closing button inside the door, etc. After the intelligent lock is awakened, if the verification such as password or fingerprint passes, the intelligent lock will be opened. After the intelligent lock is opened for a period of time, if no operation is performed on the intelligent lock, the intelligent lock will enter the sleep state again. If no operation is performed on the intelligent lock after it is awakened, the intelligent lock will enter the sleep state again after a period of time. After the intelligent lock is triggered by an external interrupt signal, the main control module 5 will start to execute the judgment and manage the charging and discharging of the first battery 1 and the second battery 8.

[0050] The first battery 1 is an external battery and is set as a detachable battery, and the second battery 8 is an internal battery and is set as a non-detachable battery. After the intelligent lock is awakened, the judgment is started. When it is judged that the power of the first battery 1 is less than the first preset value, the second battery 8 cuts in for power supply, and some functions of the intelligent lock are turned off to ensure the basic functions of the intelligent lock, so as to ensure that the user can use the intelligent lock without interruption. After the second battery 8 cuts in for power supply, each time the door is opened or closed or the handle is pressed, the intelligent lock will be awakened, and the voice module will remind the user of the power status of the first battery 1 and remind the user to replace the first battery 1 in time. After the first battery 1 is replaced, when the intelligent lock is awakened and it is judged that the power of the first battery 1 is greater than the second preset value and is in a high-power state, if it is judged that the power of the second battery 8 is lower than the third preset value, the first battery 1 will charge the second battery 8 in time to ensure that the second battery 8 can always be ready to handle abnormal situations such as the power loss or removal of the first battery 1. When the power of the first battery 1 is greater than or equal to the first preset value and less than or equal to the second preset value after being used for a period of time, it is in a low-power state. At this time, the second battery 8 has been fully charged, and at this time, the second battery 8 is in a state of not charging and not discharging, and the intelligent lock is powered by the first battery 1. The first battery 1 and the second battery 8 are only a naming method in this embodiment, and the number of batteries in the battery management system is not limited. Through the management of the charging process of the intelligent lock, the intelligent lock will not have a power-off situation, and the door can be opened normally when the intelligent lock is charging.

[0051] Embodiment 2

[0052] Combined with the attached Figures 1-3 In this embodiment, a method for managing the battery of an intelligent lock, compared with the technical solution of Embodiment 1, the first battery 1 supplies power to the basic functional module and the auxiliary functional module of the intelligent lock, and the second battery 8 supplies power to the basic functional module of the intelligent lock.

[0053] The basic functional modules include a main control module 5, a fingerprint module, a motor module, a password input module, and a voice module. The auxiliary functional modules include a wireless communication module, a face module, a cat's eye module, and a backlight module. The first battery 1 and the second battery 8 are placed in the smart lock inside the door. The indoor temperature is relatively high, keeping the first battery 1 and the second battery 8 in a warm environment and maintaining good capacity characteristics. The first battery 1 is a large battery with a capacity of several thousand milliamperes per hour. The first battery 1 supplies power to all the functional modules of the smart lock, including the basic functional modules and the auxiliary functional modules. The second battery 8 has a capacity of several hundred milliamperes per hour and only supplies power to the basic functional modules. After the first battery 1 runs out of power, the second battery 8 takes over the power supply and the auxiliary functional modules of the smart lock are turned off to ensure the basic functions of the smart lock and prevent the smart lock from losing power.

[0054] Embodiment 3

[0055] Combined with the attached Figures 1-3 For a smart lock battery management system according to this embodiment, compared with the technical solutions of Embodiment 1 or 2, the battery management system includes a main control module 5, a first battery 1, a second battery 8, a first battery power detection element 2, a second battery power detection element 7, a charging module 6, and a discharging module 4. The negative electrode of the first battery 1 is electrically connected to one end of the first battery power detection element 2. The negative electrode of the second battery 8 is electrically connected to one end of the second battery power detection element 7. The other end of the first battery power detection element 2 is respectively electrically connected to the positive electrode of the first battery 1 and the main control module 5. The other end of the second battery 8 power detection element is respectively electrically connected to one end of the charging module 6 and one end of the discharging module 4. The main control module 5 controls the discharging module 4 and the charging module 6 respectively through a discharging enable pin 9 and a charging enable pin 10.

[0056] The second battery 8 powers the basic function module of the intelligent lock through the discharge module 4 and charges itself through the charging module 6. The main control module 5 controls the charging and discharging of the second battery 8 by controlling the charging enable pin 10 and the discharging enable pin 9, so as to control the on-off of the charging module 6 and the discharging module 4 of the second battery 8. The main control module is a single-chip microcomputer. The single-chip microcomputer detects the power of the first battery 1 and the second battery 8 through the first battery power detection element 2 and the second battery power detection element 7. There is a welded logic circuit in the single-chip microcomputer. When the single-chip microcomputer detects that the power of the first battery 1 is less than the first preset value, the single-chip microcomputer controls the charging module 6 to close through the charging enable pin 10 and controls the discharging module 4 to turn on through the discharging enable pin 9, so that the second battery 8 discharges to power the basic function module of the intelligent lock. At the same time, the main control module 5 controls the voice module to announce the power of the first battery 1 and remind the user to replace the first battery 1. When the single-chip microcomputer detects that the power of the first battery 1 is greater than the second preset value and at the same time detects that the power of the second battery 8 is less than the third preset value, the single-chip microcomputer controls the charging module 6 to turn on through the charging enable pin 10 and controls the discharging module 4 to close through the discharging enable pin 9, so that the first battery 1 charges the second battery 8, and the first battery 1 provides electrical energy for the intelligent lock. When the single-chip microcomputer detects that the second battery 8 is fully charged, the single-chip microcomputer controls the charging module 6 to close through the charging enable pin 10. When the single-chip microcomputer detects that the power of the first battery 1 is greater than or equal to the first preset value and less than or equal to the second preset value, the single-chip microcomputer does not perform any operation, and the second battery 8 is in a state of not charging or discharging. At this time, the first battery 1 provides electrical energy for the intelligent lock.

[0057] Embodiment 4

[0058] Combined with the attached Figures 1-3 , an intelligent lock according to this embodiment, compared with any one of the technical solutions of Embodiments 1-3, the intelligent lock includes a basic function module and an auxiliary function module. The basic function module includes a main control module 5, a fingerprint module, a motor module, a password input module, and a voice module. The auxiliary function module includes a wireless communication module, a face module, a cat's eye module, and a backlight module. The main control module 5 is electrically connected to the fingerprint module, the password input module, the motor module, the face module, the cat's eye module, the voice module, and the backlight module. The wireless communication module is electrically connected to the cat's eye module. The backlight module is electrically connected to the face recognition module, the fingerprint module, and the password input module. The first battery 1 is electrically connected to both the basic function module and the auxiliary function module. The second battery 8 is electrically connected to the basic function module. A slot for inserting the first battery 1 is provided on the outer wall of the intelligent lock.

[0059] The first battery 1 provides electrical energy for all functional modules of the entire intelligent lock. The second battery 8 provides electrical energy for the basic functional modules of the intelligent lock when the first battery 1 is out of power or removed, ensuring the use of the intelligent lock. The main control module 5 controls the correctness of the passwords, fingerprints, or face images received by the password input module, fingerprint module, or face module. If the main control module 5 recognizes that the passwords, fingerprints, or face images received by the password input module, fingerprint module, or face module are correct, it will control the motor module to actuate and unlock the lock. When the intelligent lock receives an interrupt signal trigger, the main control module 5 of the intelligent lock will be awakened, and the main control module 5 will manage the first battery 1 and the second battery 8 according to the method in Embodiment 1. When the first battery 1 is out of power, the second battery 8 cuts in for power supply, and the main control module 5 will control to turn off the auxiliary functional modules of the intelligent lock and retain the basic functional modules of the intelligent lock to reduce the power consumption of the intelligent lock and ensure the basic functions of the intelligent lock. When the second battery 8 cuts in for power supply, the main control module 5 will control the voice module to announce the power level of the first battery 1 and remind the user to replace the first battery 1. The cat's eye module can monitor the situation at the door in real time and connect to the mobile phone software through the wireless communication module to transmit the monitoring video to the mobile phone software, allowing the user to view the monitoring video at the door in real time to ensure security. When the user touches the intelligent lock, the main control module 5 will control the backlight module to emit light. The backlight module provides light sources for the liquid crystal displays of the face recognition module, fingerprint module, and password input module, providing a good visual effect.

[0060] Embodiment 5

[0061] Combined with the attached Figures 1-3 , for an intelligent lock in this embodiment, compared with any one of the technical solutions in Embodiments 1-4, the positive electrode of the first battery 1 is electrically connected to one end of the control circuit, and the other end of the control circuit is respectively electrically connected to the main control module 5, other functional modules 3, and the other end of the charging module 6. The control circuit includes a diode D1, a first capacitor C1, a second capacitor C2, and a first resistor R1. The anode of the diode D1 is respectively electrically connected to the positive electrode of the first battery 1 and the 1 end of the second capacitor C2. The cathode of the diode D1 is respectively electrically connected to one end of the first capacitor C1, one end of the first resistor R1, other functional modules 3, the main control module 5, and the other end of the charging module 6. The 2 end of the second capacitor C2 is electrically connected to the main control module 5 and the other end of the first resistor R1. The other end of the discharge module 4 is electrically connected to other functional modules 3. The negative electrodes of the first battery 1, the first capacitor C1, and the second battery 8 are all grounded.

[0062] The other functional modules 3 refer to the functional modules 3 other than the main control module 5. The first battery 1 supplies power to all the intelligent lock functional modules through a diode. The control circuit is a detection circuit for the state of the first battery 1 being pulled out. When the first battery 1 is in place, the voltage at one end of the second capacitor C2 is equal to the voltage of the first battery 1, and the voltage at the other end of the second capacitor C2 is also the voltage of the first battery 1 due to the pull-up effect of the first resistor R1. When the first battery 1 is pulled out, the voltage at one end of the second capacitor C2 immediately decreases. Because the voltage across the capacitor cannot change suddenly, the voltage at the other end of the second capacitor C2 will also decrease synchronously and immediately. Due to the existence of the first capacitor C1, which is an energy storage capacitor, the voltage of the entire circuit will not decrease immediately. The first capacitor C1 charges the second capacitor C2 through R1, and finally the voltage at the other end of the second capacitor C2 will increase. In this way, the voltage at the other end of the second capacitor C2 is greater than the voltage at one end of the second capacitor C2, forming a low-level interrupt signal to the main control module 5. When the main control module 5 receives the low-level interrupt signal and determines that the first battery 1 has been pulled out, it will control the discharge enable pin 9 to turn on the discharge module 4, and the second battery 8 discharges. The first capacitor C1 is an energy storage capacitor. Its function is to provide electrical energy for the intelligent lock when the first battery 1 is pulled out and the second battery 8 has not been connected yet, and to increase the voltage at the other end of C2 to generate a low-level signal to trigger the main control module 5, so that the main control module 5 can detect the state of the first battery 1 being pulled out. This period is generally within 10 ms. The power detection elements of the first battery 1 and the second battery 8 are used to detect the power of the two batteries, generally by measuring the battery voltage, and the power information is fed back to the main control module 5 for processing. Through the setting of the control circuit, not only can the state of the first battery 1 being pulled out be detected, but also the intelligent lock can be powered continuously during the gap time when the first battery 1 is pulled out and the second battery 8 cuts in for power supply, ensuring the use of the intelligent lock.

[0063] Embodiment 6

[0064] Combined with the attached Figures 1-3 For an intelligent lock according to this embodiment, compared with any one of the technical solutions of Embodiments 1-5, the control circuit is a control chip, and the control chip is electrically connected to the positive electrode of the first battery 1 and the main control module 5 respectively. The control chip is provided with a control integrated circuit. The control chip can detect whether the first battery 1 is in place. If it detects that the first battery 1 has been pulled out, the control chip will send a pull-out signal to the main control module 5, and the main control module 5 will control the second battery 8 to discharge after receiving the pull-out signal.

[0065] Embodiment 7

[0066] Combined with the attached Figures 1-3, An intelligent lock according to this embodiment. Compared with any one of the technical solutions in Embodiments 1-6, the motor module is a stepper motor. A stepper motor is an open-loop control motor that converts an electrical pulse signal into an angular displacement or a linear displacement. The main control module 5 drives the stepper motor to rotate a fixed angle in a set direction, and the stepper motor drives the unlocking component of the intelligent lock to unlock, achieving the purpose of accurate unlocking.

[0067] Embodiment 8

[0068] Combined with the attached Figures 1-3 , An intelligent lock according to this embodiment. Compared with any one of the technical solutions in Embodiments 1-7, the password input module includes a touch screen and an RC control circuit, and the RC control circuit is electrically connected to the main control module 5. The password input module uses the capacitance voltage change of the RC (Resistor Capacitance circuit) control circuit to sense the touch action for password recognition. The RC control circuit is connected to the touch screen. When a human hand approaches the touch screen, a capacitance will be formed with the electrode sheet under the touch screen, and the touch action is sensed by detecting the change in capacitance. The main control module 5 compares the password input through the touch screen and the RC control circuit with the correct password stored in the single-chip microcomputer. If the password comparison is successful, the main control module 5 will send an unlocking instruction to the motor module, and the motor module controls the lock body to unlock; if the password comparison is unsuccessful, the main control module 5 will not send an unlocking instruction to the motor module. Unlocking using the password input method is simple, safe, and reliable.

[0069] Embodiment 9

[0070] Combined with the attached Figures 1-3 , An intelligent lock according to this embodiment. Compared with any one of the technical solutions in Embodiments 1-8, the fingerprint module includes a fingerprint collection module and a fingerprint recognition module, and the fingerprint collection module is connected to the fingerprint recognition module. The fingerprint collection module uses the principles of refraction and reflection of light to collect fingerprints. Light is emitted from a prism to the fingerprint. The refraction angle on the uneven line patterns of the fingerprint and the brightness of the reflected light are different. Thus, the optical device collects picture information of different brightness levels to complete the fingerprint collection. The fingerprint recognition module analyzes the fingerprints collected by the fingerprint collection module, extracts features from them, separates specific feature points to replace different fingerprint patterns, and then compares the collected fingerprint features with the fingerprint features stored in the database of the fingerprint recognition module one by one to determine whether they belong to the same fingerprint. If the fingerprint comparison is successful, the fingerprint recognition module sends an unlocking signal to the main control module 5, and the main control module 5 receives the signal and controls the motor main control module 5 to unlock; if the fingerprint comparison is unsuccessful, the fingerprint module will not send a signal to the main control module 5. Unlocking using the fingerprint input method is simple, safe, and reliable.

[0071] Embodiment 10

[0072] Combined with the attached Figures 1-3 , an intelligent lock according to this embodiment, compared with any one of the technical solutions of Embodiments 1-9, the face recognition module includes a camera and a face algorithm module connected in sequence. The camera collects face images, and the face recognition module uses the built-in face contour recognition algorithm in the face algorithm module to recognize the images. First, the face contour recognition algorithm grayscales the face image collected by the camera; secondly, it converts the image into a simple contour expression form by analyzing the light and dark of the image, and generates a certain number of measurement values through this contour expression form; finally, these measurement values are compared with the measurement values saved in the database. If the measurement values are similar in comparison, the face recognition module sends an unlocking signal to the main control module 5. The main control module 5 receives the signal and controls the motor module to unlock; if the measurement values are quite different in comparison, the face recognition module does not send a signal to the main control module 5. Using face recognition for unlocking is simple, safe and reliable.

[0073] The above schematically describes the present invention and its implementation manners. This description is not restrictive, and what is shown in the drawings is only one of the implementation manners of the present invention. The actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention, creatively design a structural manner and an embodiment similar to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. An intelligent lock, comprising an intelligent lock battery management system, characterized in that, The intelligent lock includes a basic function module and an auxiliary function module. The basic function module includes a main control module 5, a fingerprint module, a motor module, a password input module, and a voice module. The auxiliary function module includes a wireless communication module, a face recognition module, a cat's eye module, and a backlight module. The battery management system includes a main control module 5, a first battery 1, a second battery 8, a first battery power detection element 2, a second battery power detection element 7, a charging module 6, and a discharging module 4. The negative electrode of the first battery 1 is electrically connected to one end of the first battery power detection element 2. The negative electrode of the second battery 8 is electrically connected to one end of the second battery power detection element 7. The other end of the first battery power detection element 2 is respectively electrically connected to the positive electrode of the first battery 1 and the main control module 5. The other end of the second battery 8 power detection element is respectively electrically connected to one end of the charging module 6 and one end of the discharging module 4. The main control module 5 controls the discharging module 4 and the charging module 6 respectively through a discharging enable pin 9 and a charging enable pin 10. The positive electrode of the first battery 1 is electrically connected to one end of a control circuit. The other end of the control circuit is respectively electrically connected to the main control module 5, other function modules 3, and the other end of the charging module 6. The control circuit includes a diode D1, a first capacitor C1, a second capacitor C2, and a first resistor R1. The anode of the diode D1 is respectively electrically connected to the positive electrode of the first battery 1 and the 1 end of the second capacitor C2. The cathode of the diode D1 is respectively electrically connected to one end of the first capacitor C1, one end of the first resistor R1, other function modules 3, the main control module 5, and the other end of the charging module 6. The 2 end of the second capacitor C2 is electrically connected to the main control module 5 and the other end of the first resistor R1. The other end of the discharging module 4 is electrically connected to other function modules 3. The negative electrodes of the first battery 1, the other end of the first capacitor C1, and the negative electrode of the second battery 8 are all grounded. When the single-chip microcomputer detects that the power of the first battery 1 is less than a first preset value, the single-chip microcomputer controls the charging module 6 to turn off through the charging enable pin 10, and controls the discharging module 4 to turn on through the discharging enable pin 9, so that the second battery 8 discharges to supply power to the basic function module of the intelligent lock. When the single-chip microcomputer detects that the power of the first battery 1 is greater than a second preset value and at the same time detects that the power of the second battery 8 is less than a third preset value, the single-chip microcomputer controls the charging module 6 to turn on through the charging enable pin 10, and controls the discharging module 4 to turn off through the discharging enable pin 9, so that the first battery 1 charges the second battery 8, and the first battery 1 provides electrical energy for the intelligent lock.

2. The intelligent lock according to claim 1, characterized in that, The control circuit is a control chip, and the control chip is respectively electrically connected to the positive electrode of the first battery 1 and the main control module 5.

3. The intelligent lock according to claim 1, characterized in that, The motor module is a stepper motor.

4. An intelligent lock according to claim 1, characterized in that, The password input module includes a touch screen and an RC control circuit, and the RC control circuit is electrically connected to the main control module 5.

5. An intelligent lock according to claim 1, characterized in that, The fingerprint module includes a fingerprint collection module and a fingerprint recognition module, and the fingerprint collection module is connected to the fingerprint recognition module.

6. An intelligent lock according to claim 1, characterized in that, The face recognition module includes a camera and a face algorithm module connected in sequence.

7. An intelligent lock battery management method, characterized in that, The intelligent lock according to any one of claims 1-6, comprising: Step 1: Determine whether the power of the first battery 1 is lower than the first preset value. If so, execute Step 2; if not, execute Step 3; Step 2: Cut off the power supply of the first battery 1 to the smart lock, and control the second battery 8 to supply power to the smart lock. If the first battery 1 is charging the second battery 8, cut off the charging of the first battery 1 to the second battery 8, and then end the execution; Step 3: Determine whether the power of the first battery 1 is greater than the second preset value. If so, execute Step 4; if not, execute Step 5; Step 4: Determine whether the first battery 1 is charging the second battery 8. If so, execute Step 7; if not, execute Step 8; Step 5: Determine that the power of the first battery 1 is greater than or equal to the first preset value and less than or equal to the second preset value, and continue to execute Step 6; Step 6: Do not perform any operation on the second battery 8, and the second battery 8 is in a state of not charging or discharging, and then end the execution; Step 7: Determine whether the second battery 8 is fully charged. If so, end the charging of the first battery 1 to the second battery 8 and end the execution; if not, the first battery 1 continues to charge the second battery 8 and end the execution; Step 8: Determine whether the power of the second battery 8 is less than the third preset value. If so, execute Step 9; if not, execute Step 6; Step 9: Control the first battery 1 to charge the second battery 8. If the second battery 8 is supplying power to the smart lock, cut off the discharge of the second battery 8, and control the first battery 1 to supply power to the smart lock.

8. The intelligent lock battery management method according to claim 7, characterized in that, The first battery 1 supplies power to the basic function module and the auxiliary function module of the smart lock, and the second battery 8 supplies power to the basic function module of the smart lock.

Images