TWI697226B - Electric lock and control method thereof - Google Patents

Abstract

A control method for an electric lock by using a portable device includes the portable device obtaining an encrypted message according to an encryption function; the portable device sending the encrypted message to the electric lock; the electric lock decrypting the encrypted message according to a decryption function; and the electric lock determining whether to perform an action according to an decryption result of the encrypted message.

Description

Electronic lock and its control method

The invention relates to a control method of an electronic lock, and particularly relates to a control method of operating an electronic lock using a handheld device.

Generally speaking, the conventional electronic lock sets a fixed set of passwords. The user can enter the correct password through the input interface to achieve the purpose of unlocking. For example, the input interface can be a set of electronic locks located on the outside of the door The digital keys, the password can be a set of digital passwords, as long as the correct digital password is pressed on the digital keys, the electronic lock can be unlocked. However, when the owner of the electronic lock is unlocked, it is difficult to prevent the intentional person from knowing the password through peeping or side recording. Or, generally, the arrangement and arrangement of the keys are limited, and those who are interested can try different arrangement and combinations to crack the password. Therefore, the security of the conventional electronic lock needs to be strengthened.

The purpose of the present invention is to provide an electronic lock and an electronic lock control method to solve the above problems.

According to one embodiment of the present invention, a control method for a handheld device to operate an electronic lock is provided. The handheld device obtains an encrypted message according to an encryption function; the handheld device transmits the encrypted message to the electronic lock; the electronic lock encrypts according to a decryption function Decryption of messages; and electronic locks based on encrypted messages One of the decryption results to determine whether to perform an action.

According to the aforementioned control method, the action may be an unlocking operation; the control method may further include the electronic lock sending a first wireless signal by broadcast, wherein the first wireless signal includes unique identification data of a lock of the electronic lock and a time message ; The handheld device can receive the first wireless signal in a scanning manner and determine whether the unique identification data of the lock of the first wireless signal matches a preset lock identification data; when the unique identification data of the lock matches the preset lock identification data, the handheld device can change the time The message is encrypted into an encrypted message according to an encryption function; and the handheld device can send out a second wireless signal in a broadcast manner, where the second wireless signal includes the encrypted message and unique identification data of one of the handheld devices. The electronic lock can scan to receive the second wireless signal and determine whether the device unique identification data of the second wireless signal matches a default device identification data. When the device unique identification data matches the default device identification data, the electronic lock can decrypt The function decrypts the encrypted message to obtain the time message, and the electronic lock can determine whether to perform the unlock operation based on the time message and a signal strength value of the second wireless signal received by the electronic lock. When the electronic lock determines that the difference between the time information and the time when the electronic lock receives the second wireless signal is less than a time threshold and the signal strength value is greater than a preset strength value, the electronic lock performs the unlocking operation. The signal strength value may be a received signal strength indication (Received Signal Strength Indication, RSSI). The unique identification data of the lock and the unique identification data of the device may be a universally unique identifier (UUID).

According to the aforementioned control method, the electronic lock further includes an input interface, the input interface may be disposed on an outer side of a door, and the control method may further include inputting an exclusive shortcode of the handheld device on the input interface; the electronic lock determines the exclusive shortcode Whether the code matches a preset shortcode; when the exclusive shortcode matches the preset shortcode, the electronic lock sends out a first wireless signal, the first wireless signal contains the unique identification data of one of the handheld devices; and the device has unique identification data After receiving the first wireless signal, the handheld device sends a connection request to connect with the electronic lock. According to the aforementioned control method, it may further include that after the handheld device is connected to the electronic lock, the electronic lock generates a random key and sends it to the handheld device; the handheld device can send an action command According to the encryption function, the random key is used for encryption to obtain the encrypted message; and the electronic lock can decrypt the encrypted message with the random key according to the decryption function. When the electronic lock is successfully decrypted, the electronic lock can execute the aforementioned action command. The electronic lock can encrypt the execution result of executing one of the foregoing action instructions with a random key according to an encryption function into an encrypted result message; and the electronic lock can send the encrypted result message to the handheld device. The handheld device can decrypt the encrypted result message with a random key according to the decryption function to read the execution result.

According to another embodiment of the present invention, an electronic lock is provided, which includes a wireless module, a storage unit, a lock unit, and a processing unit. The processing unit is electrically connected to the wireless module, the storage unit, and the lock unit. The electronic lock is operated by a handheld device. The handheld device obtains an encrypted message according to an encryption function, and the handheld device transmits the encrypted message to the electronic lock. The wireless module receives the encrypted message, and the processing unit decrypts the encrypted message according to a decryption function. The processing unit determines whether to perform an action based on the decryption result of the encrypted message.

According to the aforementioned electronic lock, the aforementioned action can be an unlocking operation; the wireless module can broadcast a first wireless signal, the first wireless signal includes unique identification data of a lock of the electronic lock and a time message; the handheld device can scan To receive the first wireless signal and determine whether the unique identification data of the lock of the first wireless signal matches a preset lock identification data; when the unique identification data of the lock matches the preset lock identification data, the handheld device can encrypt the time information according to the encryption function To encrypt the message; and the handheld device can send a second wireless signal in a broadcast manner. The second wireless signal includes the encrypted message and unique identification data of one of the handheld devices. The wireless module can receive the second wireless signal in a scanning manner. The processing unit can determine whether the device unique identification data of the second wireless signal matches a default device identification data. The default device identification data can be stored in the storage unit when the device is unique When the identification data matches the default device identification data, the processing unit can decrypt the encrypted message according to the decryption function to obtain the time message, and the processing unit can determine according to the time message and a signal strength value of the second wireless signal received by the wireless module Whether to perform the unlock operation. When the processing unit determines that the difference between the time message and the time of the second wireless signal received by the wireless module is less than a time threshold and the signal strength value is greater than a preset strength value At this time, the processing unit can control the lock unit to perform an unlocking operation. The signal strength value may be a received signal strength indicator.

According to the aforementioned electronic lock, it may further include an input interface, which is electrically connected to the processing unit, and the input interface may be provided on an outer side of a door panel for a user to input an exclusive shortcode of the handheld device; wherein the processing unit may Determine whether the dedicated shortcode matches a preset shortcode, the preset shortcode can be stored in the storage unit; when the dedicated shortcode matches the preset shortcode, the wireless module can send out a first wireless signal, the first wireless signal includes the handheld One of the devices has unique identification data; and the handheld device with the unique identification data of the device can send a connection request after receiving the first wireless signal to connect with the wireless module. After the handheld device is connected with the wireless module, the processing unit can generate a random key and send it to the handheld device through the wireless module; the handheld device can encrypt a motion command with the random key according to the encryption function to obtain the encrypted message; And the electronic lock can decrypt the encrypted message with a random key according to the decryption function. When the electronic lock is successfully decrypted, the electronic lock executes the aforementioned action command. The processing unit may encrypt the execution result of executing one of the foregoing action instructions with a random key according to an encryption function into an encrypted result message; and the wireless module may transmit the encrypted result message to the handheld device. The handheld device can decrypt the encrypted result message with a random key according to the decryption function to read the execution result.

Through the above two embodiments, the present invention transmits the encrypted message to the electronic lock through the handheld device, and then the electronic lock decrypts the encrypted message, which can prevent the intentional person from obtaining the password by way of side recording, or by trying different arrangements of keys To crack the password is conducive to improving security.

100: Electronic lock

110: wireless module

120: storage unit

130: Lock unit

140: input interface

150: processing unit

200, 300: handheld device

400, 500, 600, 800: control method

410 to 440: steps

510 to 570: steps

610 to 670: steps

810 to 870: steps

AP: Application

C1: Username field

C2: Unlock code field

L: Button

R: Button

Figure 1 is a schematic diagram of the electronic lock of the present invention.

Figure 2 is a functional block diagram of the electronic lock of the present invention.

FIG. 3 is a schematic diagram of an electronic lock of the present invention receiving an encrypted message in an embodiment.

FIG. 4 is a schematic diagram of the first embodiment of the electronic lock of FIG. 3 for unlocking operation.

FIG. 5 is a schematic diagram of establishing a connection between the electronic lock and the handheld device in the second embodiment of the electronic lock of FIG. 3 for unlocking operation.

FIG. 6 is a schematic diagram of the electronic lock and the handheld device transmitting random keys and encrypted messages in the second embodiment of the electronic lock of FIG. 3 for unlocking operation.

FIG. 7 is a schematic diagram of the electronic lock transmitting an encrypted result message in the second embodiment of the electronic lock of FIG. 3 performing an unlocking operation.

FIG. 8 is a flowchart of steps of a control method for operating an electronic lock using a handheld device of the present invention.

Fig. 9 is a flowchart of steps in the control method of the first embodiment of Fig. 8;

FIG. 10 is a flowchart of steps in the control method according to the second embodiment of FIG. 8.

FIG. 11 is a schematic diagram of the electronic lock of the present invention entering the administrator setting mode in another embodiment.

FIG. 12 is a schematic diagram of the electronic lock of FIG. 11 entering the user setting mode.

FIG. 13 is a schematic diagram of the handheld device of FIG. 11 in a user setting mode.

FIG. 14 is a schematic diagram of the first embodiment of the electronic lock of FIG. 11 performing an unlocking operation.

FIG. 15 is a schematic diagram of a second embodiment of the electronic lock of FIG. 11 for unlocking operation.

FIG. 16 is a flow chart of another method for controlling an electronic lock using a handheld device of the present invention.

Please refer to Figure 1 and Figure 2 at the same time. FIG. 1 is a schematic diagram of the electronic lock 100 of the present invention, and FIG. 2 is a functional block diagram of the electronic lock 100 of the present invention. As shown in FIGS. 1 and 2, the electronic lock 100 includes a wireless module 110, a storage unit 120, a lock unit 130, and a processing unit 150. The electronic lock 100 optionally includes an input interface 140. The wireless module 110 may be a Bluetooth module or other wireless communication module. The storage unit 120 is used to store data (such as a device's unique identification data, a dedicated shortcode, or a default manager password) of the handheld device. The storage unit 120 may be, but not limited to, read-only memory, random access memory, or combination. The lock unit 130 is used to unlock or unlock a target (such as a door). The lock unit 130 may be a general electronic lock mechanism, which may include a lock tongue, a set of disks, and a transmission mechanism (including motor and gear) Etc.), a clutch mechanism, etc., the clutch mechanism cooperates with the set of discs, so that the transmission mechanism can drive the lock tongue to latch or unlatch the door leaf. The input interface 140 is used to receive external input. In this embodiment, the input interface 140 includes a button L and a button R, but the invention is not limited thereto. In other embodiments of the present invention, the input interface 140 may further include other types of input elements, such as numeric buttons or touch panels. The processing unit 150 is electrically connected to the wireless module 110, the storage unit 120, the lock unit 130, and the input interface 140 to control the operation of the electronic lock 100. The processing unit 150 may be, but not limited to, a central processing unit (Central Processing Unit, CPU).

Please refer to Figure 3, and refer to Figure 1 and Figure 2 together. FIG. 3 is a schematic diagram of an electronic lock 100 of the present invention receiving an encrypted message in an embodiment. As shown in FIG. 3, the electronic lock 100 can be operated by a handheld device 200. The handheld device 200 obtains an encrypted message according to an encryption function and transmits the encrypted message to the electronic lock 100. The wireless module 110 of the electronic lock 100 receives the encrypted message The processing unit 150 decrypts the encrypted message according to a decryption function, and the processing unit 150 determines whether to perform an action according to the decryption result of the encrypted message. For example, the electronic lock 100 and the handheld device 200 can be installed with an application program AP. The application program AP has built-in encryption function and decryption function. The handheld device 200 can use the encryption function in the application program AP to send a message (such as time Message, unlock command, etc.) to obtain an encrypted message and send the encrypted message to the electronic lock 100. After the wireless module 110 of the electronic lock 100 receives the encrypted message, the electronic lock 100 can use the decryption function in the application AP to hold the handheld The encrypted message sent by the device 200 is decrypted. The encryption function and the decryption function can be based on algorithms not limited to Advanced Encryption Standard (AES).

By using the handheld device 200 to operate the electronic lock 100, it is possible to avoid intentional persons from obtaining the password by peeping, or to try to crack the password by different combinations of keys, which is conducive to improving security. In addition, the communication message between the electronic lock 100 and the handheld device 200 is performed with an encrypted message, which can be avoided It prevents the other handheld devices from wirelessly intercepting the communication messages between the electronic lock 100 and the handheld device 200 to unlock the electronic lock 100, which can further improve the security.

Please refer to Figure 4 and refer to Figures 1 to 3 together. FIG. 4 is a schematic diagram of the first embodiment of the electronic lock 100 of FIG. 3 performing an unlocking operation. In detail, the wireless module 110 can send out a first wireless signal by broadcast. The first wireless signal can include a unique identification data and time information of one of the locks of the electronic lock 100. The unique identification data of the lock can be a universal unique identification code, time The message may be the real-time clock (RTC) in the electronic lock 100 or the current time of the clock chip when the first wireless signal is sent. The handheld device 200 can scan to receive the first wireless signal and determine whether the unique lock identification data of the first wireless signal matches a preset lock identification data. When the unique lock identification data matches the preset lock identification data, the handheld device 200 can The time message is encrypted into an encrypted message according to an encryption function. The handheld device 200 then broadcasts a second wireless signal. The second wireless signal may include the encrypted message and unique device identification data of the handheld device 200. The unique device identification data may be It is a universal unique identification code. The wireless module 110 can receive the second wireless signal in a scanning manner. The processing unit 150 can determine whether the device unique identification data of the second wireless signal matches a default device identification data. The default device identification data is stored in the storage unit 120 when the When the unique device identification data matches the default device identification data, the processing unit 150 decrypts the encrypted message according to the decryption function to obtain the time message. The processing unit 150 may determine whether to perform the unlocking operation according to the time message and a signal strength value of the second wireless signal received by the wireless module 110, and the signal strength value may be a received signal strength indicator. In more detail, when the processing unit 150 determines that the difference between the time information and the time of the second wireless signal received by the wireless module 110 is less than a time threshold and the signal strength value is greater than a predetermined strength value, the processing unit 150 The lock unit 130 can be controlled to perform an unlocking operation.

As can be seen from the above description, in the first embodiment, the electronic lock 100 and the handheld device 200 interact through broadcasting and scanning, and the step of the handheld device 200 requesting the electronic lock 100 for connection can be omitted, which is beneficial to save time and improve unlocking. effectiveness. In addition, in the first embodiment, the electronic lock 100 is The unique identification data of one of the devices 200 determines whether the handheld device 200 is a preset handheld device for unlocking. The handheld device 200 determines whether the electronic lock 100 is a preset unlocking object through the unique identification data of the lock of the electronic lock 100. In this way, the electronic lock 100 can be prevented from being unlocked by a non-preset handheld device, which is beneficial to improving the security of the electronic lock 100.

Furthermore, in the first embodiment, the electronic lock 100 uses time information as an encrypted message, which can ensure the uniqueness of the encrypted message and prevent the unlocking by receiving an error message. Furthermore, in the first embodiment, when the following two conditions are met at the same time, the processing unit 150 will control the lock unit 130 to perform the unlocking operation. The first condition is the time information in the first wireless signal and the wireless module 110 The time difference of the received second wireless signal needs to be less than a time threshold. The second condition is that the signal strength value of the second wireless signal needs to be greater than a preset strength value for unlocking operation. With the first condition, it can be improved The timeliness of the second wireless signal increases the difficulty of cracking the encrypted message. With the second condition, the precise unlocking timing can be grasped, that is, when the distance between the handheld device 200 and the electronic lock 100 needs to be within a predetermined range (handheld device 200 The smaller the distance from the electronic lock 100, the greater the signal strength value of the second wireless signal), the processing unit 150 will control the lock unit 130 to perform the unlocking operation. In addition, in this embodiment, neither the first wireless signal nor the second wireless signal contains any unlocking instructions, which can greatly reduce the chance of malicious intrusion by others.

Please refer to Figure 5 and refer to Figures 1 to 3 together. FIG. 5 is a schematic diagram of establishing a connection between the electronic lock 100 and the handheld device 200 in the second embodiment of the electronic lock 100 of FIG. 3 performing an unlocking operation. In the second embodiment, as described in FIG. 3, the electronic lock 100 can be operated by a handheld device 200. The handheld device 200 obtains an encrypted message according to an encryption function and transmits the encrypted message to the electronic lock 100. The electronic lock 100 The wireless module 110 receives the encrypted message, the processing unit 150 decrypts the encrypted message according to a decryption function, and the processing unit 150 determines whether to perform an action based on the decryption result of the encrypted message. For other details about FIG. 3, reference may be made to the above, which will not be repeated here.

As shown in FIGS. 1 and 5, the input interface 140 may be provided on an outer side of a door (not shown) for a user to input a unique shortcode of the handheld device 200, and the dedicated shortcode may be the keys L and Button R The arrangement and combination of pressing sequence and pressing times, such as LLRR, but the present invention is not limited to this, can set a dedicated shortcode according to the type of input interface 140, such as numeric keys or touch panel. When the user wants to use the handheld device 200 to operate the electronic lock 100, the user needs to input an exclusive shortcode of the handheld device 200 through the input interface 140, and the processing unit 150 determines whether the exclusive shortcode matches a preset shortcode, and the preset shortcode Stored in the storage unit 120. When the dedicated shortcode matches the default shortcode, the wireless module 110 sends out a first wireless signal, the first wireless signal includes device unique identification data of one of the handheld devices 200, and the handheld device 200 with the device unique identification data receives the first wireless signal After the signal, a connection request is sent to connect with the wireless module 110.

The user needs to manually input the exclusive shortcode outside the door to prevent the user from accidentally starting the unlock operation inside the door. In addition, the handheld devices 200 that are preset to be unlocked all have exclusive shortcodes to avoid the electronic lock 100 Unlocking by a non-preset handheld device is beneficial to improve the security of the electronic lock 100.

Please refer to FIG. 6. FIG. 6 is a schematic diagram of the electronic lock 100 and the handheld device 200 transmitting a random key and an encrypted message in the second embodiment of the electronic lock 100 of FIG. 3 performing an unlocking operation. After the handheld device 200 is connected to the wireless module 110, the processing unit 150 generates a random key and transmits it to the handheld device 200 through the wireless module 110. The handheld device 200 can encrypt the action command with the random key according to the encryption function. Get encrypted messages. The electronic lock 100 decrypts the encrypted message with a random key according to the decryption function. When the electronic lock 100 successfully decrypts, the electronic lock 100 performs the action specified in the action instruction. In detail, the random key can be generated by the application AP installed in the electronic lock 100, and the communication messages between the electronic lock 100 and the handheld device 200 can be encrypted and decrypted by the random key, and the action command can be As an unlocking instruction, when the electronic lock 100 is successfully decrypted, the processing unit 150 in the electronic lock 100 can control the lock unit 130 to perform an unlocking operation according to the unlocking instruction.

By using random keys for encryption and decryption, it is possible to prevent other handheld devices from wirelessly intercepting communication messages between the electronic lock 100 and the handheld device 200 and unlocking the electronic lock 100, which is beneficial to improving security. In addition, the random key generated by each connection between the electronic lock 100 and the handheld device 200 It can be different, which can avoid copying and copying by interested persons, and can further improve security.

Please refer to FIG. 7 together. FIG. 7 is a schematic diagram of the electronic lock 100 transmitting an encrypted result message in the second embodiment of the electronic lock 100 of FIG. 3 performing an unlocking operation. In FIG. 7, after the electronic lock 100 is successfully decrypted and the electronic lock 100 executes the action specified in the action instruction, the processing unit 150 may encrypt the execution result of one of the execution action instructions according to the encryption function with a random key as an encryption result Message, and control the wireless module 110 to send the encrypted result message to the handheld device 200. The handheld device 200 can decrypt the encrypted result message with a random key according to the decryption function to read the execution result. In this way, the electronic lock 100 can report whether the action command issued by the handheld device 200 has been successfully executed. For example, when the action command is an unlock command, the electronic lock 100 can report whether the handheld device 200 successfully unlocked the electronic lock 100. In addition, the handheld device 200 can store the execution result, so as to retain the operation record of the electronic lock 100 each time.

As can be seen from the above description, in the second embodiment, the user needs to manually enter the exclusive shortcode outside the door, which can effectively avoid the unlocking operation in the door by mistake, and the use of random keys can greatly improve Use security of electronic lock.

With reference to FIG. 8, FIG. 8 is a flowchart of steps of a method 400 for controlling an electronic lock using a handheld device of the present invention. In FIG. 8, the control method 400 includes step 410, step 420, step 430, and step 440.

Step 410 is that the handheld device obtains an encrypted message according to an encryption function, step 420 is that the handheld device sends the encrypted message to the electronic lock, step 430 is that the electronic lock decrypts the encrypted message according to a decryption function, and step 440 is that the electronic lock according to the encrypted message As a result of decryption, it is judged whether an action is performed. For details of steps 410 to 440, reference may be made to the related description in FIG. 3, and no further details are provided here.

With reference to FIG. 9, FIG. 9 is a flowchart of steps of the control method 500 of the first embodiment of FIG. 8. In FIG. 9, the control method 500 includes step 510, step 520, step 530, step 540, step 550, step 560, and step 570.

Step 510 is that the electronic lock sends out a first wireless signal by broadcasting, in which the first wireless The signal includes unique identification data of a lock of an electronic lock and a time message.

Step 520 is that the handheld device receives the first wireless signal in a scanning manner and determines whether the unique identification data of the lock of the first wireless signal matches a preset lock identification data.

Step 530 is that when the unique identification data of the lock matches the preset lock identification data, the handheld device encrypts the time message into an encrypted message according to the encryption function.

Step 540 is that the handheld device sends out a second wireless signal in a broadcast manner, wherein the second wireless signal includes the encrypted message and unique identification data of one of the handheld devices.

Step 550 is that the electronic lock receives the second wireless signal by scanning, and determines whether the device unique identification data of the second wireless signal matches a preset device identification data.

Step 560 is that when the device unique identification data matches the default device identification data, the electronic lock decrypts the encrypted message according to the decryption function to obtain the time message.

Step 570 is that the electronic lock determines whether to perform the unlocking operation according to the time information and a signal strength value of the second wireless signal received by the electronic lock.

For details of steps 510 to 570, reference may be made to the related description in FIG. 4, and details are not described herein again.

With reference to FIG. 10, FIG. 10 is a flowchart of steps of the control method 600 of the second embodiment of FIG. 8. In FIG. 10, the control method 600 includes step 610, step 620, step 630, step 640, step 650, step 660, and step 670.

Step 610 is to input one of the short codes of the handheld device on the input interface.

Step 620 is that the electronic lock determines whether the exclusive shortcode matches a preset shortcode.

Step 630 is that when the exclusive shortcode matches the preset shortcode, the electronic lock sends out a first wireless signal, and the first wireless signal includes unique identification data of one of the handheld devices.

Step 640 is that the handheld device with the unique identification data of the device receives a first wireless signal and sends a connection request to connect with the electronic lock.

Step 650 is that after the handheld device is connected with the electronic lock, the electronic lock generates a random key and transmits it to the handheld device.

Step 660 is that the handheld device encrypts an action command with a random key according to an encryption function to obtain an encrypted message.

Step 670 is that the electronic lock decrypts the encrypted message with a random key according to the decryption function. When the electronic lock is successfully decrypted, the electronic lock executes the action command.

For details of steps 610 to 670, reference may be made to the relevant descriptions in FIG. 5 to FIG. 7, which are not repeated here.

Please refer to Figure 11 and refer to Figure 1 and Figure 2 together. FIG. 11 is a schematic diagram of the electronic lock 100 of the present invention entering the administrator setting mode in another embodiment. As shown in the figure, the administrator can use a handheld device 200 to communicate with the electronic lock 100. For example, the handheld device 200 may install an application program AP and communicate with the electronic lock 100 via the wireless module 110 of the electronic lock 100. The administrator can input an administrator password to the application program AP, and use the handheld device 200 to send the administrator password to the electronic lock 100. When the processing unit 150 determines that the administrator password transmitted from the handheld device 200 matches the preset administrator password in the storage unit 120, the processing unit 150 enters an administrator setting mode. On the other hand, regardless of whether the input of the manager password comes from the authenticated/paired handheld device, even if the input of the manager password comes from a non-specific handheld device, as long as the processing unit judges that the input manager password matches the preset manager password You can enter the administrator setting mode, so as to have the convenience of management operation, and there is no worry about whether the handheld device is lost. In the administrator setting mode, the administrator can use the handheld device 200 to control the processing unit 150 to randomly generate a verification code (or multiple verification codes). The number of verification codes generated can be determined according to the needs of the manager. After the processing unit 150 generates the verification code, the processing unit 150 can control the wireless module 110 to transmit the verification code to the handheld device 200. On the other hand, the processing unit 150 can also control the storage unit 120 to store the verification code.

Please refer to Figure 12, and refer to Figure 1 and Figure 2 together. Figure 12 is the electronics of Figure 11 A schematic diagram of the lock 100 entering the user setting mode. After the administrator obtains the verification code, the administrator can notify the temporary user (for example, by text message or email notification) to let the temporary user know the verification code. After that, the temporary user can use the verification code to set the unlock. As shown in the figure, a temporary user can use a handheld device 300 to communicate with the electronic lock 100. For example, the handheld device 300 can install the application program AP and communicate with the electronic lock 100 via the wireless module 110 of the electronic lock 100. The temporary user can input the verification code to the application program AP, and use the handheld device 300 to send the verification code to the electronic lock 100, so that the processing unit 150 compares the verification code transmitted from the handheld device 300 with the verification code in the storage unit 120. When the processing unit 150 determines that the verification code transmitted from the handheld device 300 matches the verification code in the storage unit 120, the processing unit 150 can control the wireless module 110 and the handheld device 300 to perform pairing (for example, Bluetooth pairing) and receive the handheld device 300’s Unique identification information of the device. The device unique identification data of the handheld device 300 may include at least one of a device serial code, an international mobile equipment identity (IMEI), and a media access control address (MAC address). In addition, the processing unit 150 can also control the storage unit 120 to store the device unique identification data of the handheld device 300.

On the other hand, when the processing unit 150 determines that the verification code transmitted from the handheld device 300 matches the verification code in the storage unit 120, the processing unit 150 may enter a user setting mode. As shown in FIG. 13, in the user setting mode, the temporary user can enter a user name in the user name field C1 in the application AP, and enter an unlock code in the unlock code field C2. The unlock code is the order in which the temporary user needs to press the key L and the key R when unlocking the electronic lock 100 (for example, LLRR, but the invention is not limited to this). The temporary user can set the unlock code according to personal preference. On the other hand, the unlock code is not limited to the pressing sequence of the key L and the key R. When the input interface 140 includes numeric keys or a touch panel, the unlock code may also be the pressing sequence of the numeric keys or a touch drag gesture. After that, the application AP sends the user name and unlock code input by the temporary user to the electronic lock 100. After the processing unit 150 receives the user name and the unlock code in the user setting mode, the processing unit 150 can control the storage unit 120 to store the user name and the unlock code. In addition, in the user setting mode, the processing unit 150 does not Generate a verification code to avoid excessive user rights. Furthermore, after the verification code is input, the processing unit 150 may mark the input verification code to avoid repeated use of the input verification code.

Please refer to FIG. 14, which is a schematic diagram of the first embodiment of the electronic lock 100 of FIG. 11 performing an unlocking operation. As shown in FIG. 14, when the temporary user wants to unlock the electronic lock 100, the temporary user can use the application AP of the handheld device 300 to send an unlock command to the electronic lock 100. When the processing unit 150 receives the unlocking instruction and the wireless module 110 detects that the handheld device 300 with the unique identification information of the device is within a predetermined distance, the processing unit 150 can control the lock unit 130 to perform the unlocking operation.

On the other hand, please refer to FIG. 15, which is a schematic diagram of the second embodiment of the electronic lock 100 of FIG. 11 performing an unlocking operation. As shown in FIG. 15, when the temporary user wants to unlock the electronic lock 100, the temporary user can also sequentially press the button L and the button R of the input interface 140 according to the previously set unlock code. When the processing unit 150 determines that the pressing sequence of the key L and the key R conforms to one of the unlock codes of the storage unit 120 and the wireless module 110 detects that the handheld device 300 having the aforementioned unique identification data of the device (corresponding to the entered unlock code) is scheduled When the distance is within, the processing unit 150 can control the lock unit 130 to perform an unlocking operation. In this way, the temporary user can unlock the electronic lock 100 without operating the handheld device 300.

According to the above configuration, the administrator of the electronic lock 100 of the present invention can authorize the temporary user to perform unlock setting without having to manually operate the electronic lock 100 to change the password of the electronic lock 100. In addition, after the temporary user completes the unlock setting, the electronic lock 100 can perform the unlock operation according to the device unique identification data of the handheld device 300. Since the device unique identification data of the handheld device 300 is unique, the unlock setting of the temporary user is not easy to be cracked.

In addition, in the administrator setting mode, the administrator can use the application AP of the handheld device 200 to further set the valid time corresponding to the verification code. When the temporary user uses the handheld device 300 to unlock the electronic lock 100 outside the valid time, the processing unit 150 does not control the lock unit 130 to perform the unlocking operation according to the device unique identification data of the handheld device 300.

Furthermore, in the administrator setting mode, the administrator can also use the application of the handheld device 200 The program AP further sets the number of valid uses corresponding to the verification code. When the temporary user uses the handheld device 300 to unlock the electronic lock 100 for more than a valid number of times, the processing unit 150 no longer controls the lock unit 130 to perform the unlocking operation according to the device unique identification data of the handheld device 300.

On the other hand, when the processing unit 150 controls the lock unit 130 to perform the unlocking operation, the processing unit 150 can further control the storage unit 120 to store the user name and unlock time of the handheld device 300. The administrator can use the handheld device 200 to connect the electronic lock 100 to obtain the unlock history of the electronic lock 100, or the processing unit 150 can upload the unlock history of the electronic lock 100 to the cloud, so that the administrator can monitor the unlock history of the electronic lock 100.

In the embodiment of the present invention, the handheld device 200 of the administrator and the handheld device 300 of the temporary user are different handheld devices, but the present invention is not limited thereto. In other embodiments of the present invention, the handheld device 200 of the administrator and the handheld device 300 of the temporary user may be the same handheld device.

Please refer to Figure 16. FIG. 16 is a flow chart of another method for controlling an electronic lock 800 using a handheld device according to the present invention. As shown in FIG. 16, the control method 800 includes step 810, step 820, step 830, step 840, step 850, step 860, and step 870.

Step 810 is that an electronic lock enters an administrator setting mode after receiving an administrator password.

Step 820 is that the electronic lock generates a verification code in the administrator setting mode.

Step 830 is that the electronic lock wirelessly receives a first input from a handheld device.

Step 840 is the electronic lock to the first input and the verification code.

Step 850 is when the electronic lock determines that the first input matches the verification code, the electronic lock is paired with the handheld device and the device unique identification data of the received handheld device is received.

Step 860 is that the electronic lock stores the unique identification data of the handheld device; and

Step 870 is when the electronic lock receives a second input and the electronic lock detects that the handheld device with the unique identification information of the device is within a predetermined distance, the electronic lock performs an unlocking operation.

In addition, in the method of the present invention, the above steps do not necessarily have to follow the above order. In other words In other words, without conflicts, the order of the above steps can be changed, and other steps can also be interposed between the above steps.

Compared with the prior art, the present invention transmits the encrypted message to the electronic lock through the handheld device, and the electronic lock decrypts the encrypted message, which can avoid the intentional person from obtaining the password by way of side recording, or by trying different key combinations to break The password is conducive to improving security.

Compared with the prior art, the administrator of the electronic lock of the present invention can authorize temporary users to perform unlocking settings without having to manually operate the electronic lock to change the password of the electronic lock, thereby increasing the management convenience of the electronic lock. In addition, the electronic lock of the present invention performs unlocking operation based on the unique identification data of the handheld device, thereby increasing the safety of the temporary user in use.

The above are only the preferred embodiments of the present invention, and all changes and modifications made in accordance with the scope of the patent application of the present invention shall fall within the scope of the present invention.

100: Electronic lock

110: wireless module

120: storage unit

130: Lock unit

140: input interface

150: processing unit

Claims (17)

A control method for operating an electronic lock using a handheld device, comprising: the electronic lock sends out a first wireless signal by broadcast, wherein the first wireless signal includes unique identification data of a lock of the electronic lock and a time message; The handheld device receives the first wireless signal by scanning and determines whether the unique identification data of the lock of the first wireless signal conforms to a preset lock identification data; when the unique identification data of the lock matches the preset lock identification data, The handheld device encrypts the time message according to an encryption function to obtain an encrypted message; the handheld device transmits a second wireless signal to the electronic lock by broadcast, wherein the second wireless signal includes the encrypted message and the handheld One of the devices has unique identification data; the electronic lock decrypts the encrypted message according to a decryption function; and the electronic lock determines whether to perform an unlock operation based on a decryption result of the encrypted message. The control method according to claim 1, wherein: the electronic lock receives the second wireless signal by scanning, and determines whether the device unique identification data of the second wireless signal matches a preset device identification data; when the When the device unique identification data matches the default device identification data, the electronic lock decrypts the encrypted message according to the decryption function to obtain the time message; and the electronic lock receives the second message received by the electronic lock according to the time message A signal strength value of the wireless signal determines whether to perform the unlocking operation. The control method according to claim 2, wherein the electronic lock determines that the difference between the time message and the time when the electronic lock receives the second wireless signal is less than a time threshold and the signal strength value is greater than a preset strength value , The electronic lock performs the unlocking operation. The control method according to claim 2, wherein the signal strength value is a received signal strength indication (Received Signal Strength Indication, RSSI). The control method according to claim 1, wherein the unique identification data of the lock and the unique identification data of the device are respectively a universally unique identifier (UUID). A control method for operating an electronic lock by using a handheld device, the electronic lock includes an input interface, the input interface is disposed on an outer side of a door, the control method includes: inputting an exclusive shortcode of the handheld device at the input interface The electronic lock determines whether the dedicated shortcode matches a preset shortcode; when the dedicated shortcode matches the preset shortcode, the electronic lock sends out a first wireless signal, the first wireless signal including the handheld device A device unique identification data; the handheld device with the device unique identification data sends a connection request after receiving the first wireless signal to connect with the electronic lock; the handheld device obtains an encrypted message according to an encryption function; The handheld device transmits the encrypted message to the electronic lock; the electronic lock decrypts the encrypted message according to a decryption function; and the electronic lock determines whether to perform an action based on a decryption result of the encrypted message. The control method according to claim 6, further comprising: after the handheld device is connected to the electronic lock, the electronic lock generates a random key and transmits it to the handheld device; the handheld device transmits an action command according to the encryption function Encrypt with the random key to obtain The encrypted message; and the electronic lock decrypts the encrypted message with the random key according to the decryption function, and when the electronic lock is successfully decrypted, the electronic lock executes the action instruction. The control method according to claim 7, further comprising: the electronic lock will execute one of the execution results of the action instruction according to the encryption function to encrypt the random key into an encrypted result message; and the electronic lock will encrypt the encrypted result The message is sent to the handheld device. The control method according to claim 8, further comprising: the handheld device decrypts the encrypted result message with the random key according to the decryption function to read the execution result. An electronic lock includes: a wireless module; a storage unit; a lock unit; and a processing unit electrically connected to the wireless module, the storage unit, and the lock unit; wherein the electronic lock is operated by a handheld device Wherein the wireless module sends out a first wireless signal in a broadcast manner, the first wireless signal includes a unique identification data of a lock of the electronic lock and a time message; wherein the handheld device receives the first wireless signal by scanning Signal and determine whether the unique identification data of the lock of the first wireless signal matches a preset lock identification data; wherein when the unique identification data of the lock matches the preset lock identification data, the handheld device The inter-message is encrypted according to an encryption function to obtain an encrypted message. The handheld device transmits a second wireless signal to the electronic lock in a broadcast manner. The second wireless signal includes the encrypted message and a unique identification of a device of the handheld device Data; wherein the wireless module receives the encrypted message, the processing unit decrypts the encrypted message according to a decryption function, and the processing unit determines whether to perform an unlocking operation according to a decryption result of the encrypted message. The electronic lock according to claim 10, wherein the wireless module receives the second wireless signal by scanning, and the processing unit determines whether the unique identification data of the device of the second wireless signal matches a preset device identification data, The default device identification data is stored in the storage unit, and when the device unique identification data matches the default device identification data, the processing unit decrypts the encrypted message according to the decryption function to obtain the time message, and the processing The unit determines whether to perform the unlocking operation according to the time information and a signal strength value of the second wireless signal received by the wireless module. The electronic lock of claim 11, wherein the processing unit determines that the difference between the time of the time message and the time of the second wireless signal received by the wireless module is less than a time threshold and the signal strength value is greater than a preset At the strength value, the processing unit controls the lock unit to perform the unlocking operation. The electronic lock according to claim 11, wherein the signal strength value is a received signal strength indication (Received Signal Strength Indication, RSSI). An electronic lock, including: a wireless module; A storage unit; a lock unit; a processing unit, electrically connected to the wireless module, the storage unit, and the lock unit; and an input interface, the input interface is electrically connected to the processing unit, and the input interface is provided in a door An outer side of the tablet is provided for a user to input an exclusive shortcode of a handheld device; wherein the processing unit determines whether the exclusive shortcode matches a preset shortcode, the preset shortcode is stored in the storage unit; When the dedicated shortcode matches the default shortcode, the wireless module sends out a first wireless signal, the first wireless signal includes unique device identification data of the handheld device; wherein the handheld device with the unique identification data of the device receives After the first wireless signal, a connection request is sent to connect with the wireless module; wherein the electronic lock is operated by the handheld device, the handheld device obtains an encrypted message according to an encryption function, and the handheld device encrypts The message is sent to the electronic lock; wherein the wireless module receives the encrypted message, the processing unit decrypts the encrypted message according to a decryption function, and the processing unit determines whether to perform an action based on a decryption result of the encrypted message. The electronic lock of claim 14, wherein: after the handheld device is connected to the wireless module, the processing unit generates a random key and transmits it to the handheld device through the wireless module; the handheld device will perform an action The instruction encrypts the random key with the random key according to the encryption function to obtain the encrypted message; and the electronic lock decrypts the encrypted message with the random key according to the decryption function. When the electronic lock is successfully decrypted, the electronic lock executes the Action instructions. The electronic lock according to claim 15, wherein: the processing unit encrypts the execution result of one of the action instructions according to the encryption function with the random key into an encryption result message; and the wireless module encrypts the encryption result The message is sent to the handheld device. The electronic lock according to claim 16, wherein the handheld device decrypts the encrypted result message with the random key according to the decryption function to read the execution result.

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