Information processing apparatus, information processing method, and program

4:

• The lock control device according to claim 1,
• wherein the circuitry is configured to
• execute, when communication with a third communication terminal is further detected, a first process of processes to unlock the lock corresponding to the third communication terminal, and
• temporarily halt the first process corresponding to the third communication terminal, and execute a second process to unlock the lock corresponding to the first communication terminal, when the unlocking request is detected during the first process corresponding to the third communication terminal,
• wherein execution of the first process is based on detection of communication with the third communication terminal, and
• wherein execution of the second process is based on when the first communication terminal completes the first process of processes to unlock the lock.

7:

• The lock control device according to claim 1, wherein the circuitry is configured to
• cause a transmitter to transmit to the first communication terminal a warning notification based on detection of a remaining level of a first battery being equal to or smaller than a predetermined threshold value;
• and
• switch a battery to use, from the first battery to a second battery based on detection of a remaining level of the first battery being one of equal to or smaller than a predetermined threshold value.

9:

• The lock control device according to claim 8, wherein the circuitry is configured to
• receive first key information including the first public key and signature information for the first public key from the second communication terminal,
• verify rightfulness of the first public key based on the signature information for the first public key, and
• determine whether or not to cause the lock to unlock based on a verification result of the verifying.

11:

• A locking control method executed by a lock control device removably provided external to a lock, the method comprising:
• receiving position information from a first communication terminal of a user, and determining whether the user is within a predetermined range from the lock control device;
• detecting an unlocking request when a signal is received from a second communication terminal of the user different from the first communication terminal;
• in response to determining that the user is within the predetermined range from the lock control device, executing a pre-processing sequence for unlocking the lock;
• and
• in response to the pre-processing sequence ending and to detecting the unlocking request, outputting a control signal to unlock the lock based on detection of the unlocking request.

12:

• A non-transitory computer-readable storage medium storing computer-readable instructions that, when executed by a computer, cause the computer to perform a method comprising:
• receiving position information from a first communication terminal of a user, and determining whether the user is within a predetermined range from a lock control device removably provided external to a lock;
• detecting an unlocking request when a signal is received from a second communication terminal of the user different from the first communication terminal;
• in response to determining that the user is within the predetermined range from the lock control device, executing a pre-processing sequence for unlocking the lock;
• and
• in response to the pre-processing sequence ending and to detecting the unlocking request, outputting a control signal to unlock the lock based on detection of the unlocking request.