Abstract: A padlock includes a lock body, a shackle receivable in first and second shackle openings in the lock body, and a locking mechanism disposed in the lock body. The locking mechanism includes at least one locking member, a key cylinder rotatable between a locked position and an unlocked position, an actuator assembled with the key cylinder for co-rotation therewith, and a torsion spring having a first end engaging the lock body and a second end engaging the actuator to rotationally bias the key cylinder toward the locked position. The actuator includes a projection that engages a portion of the lock body when the key cylinder is in a locked position, and a blocker portion aligned with the at least one locking member to hold the at least one locking member in locking engagement with the shackle when the key cylinder is in the locked position.

Abstract: A lockable enclosure includes a housing and an access door. The access door includes a hinge portion connected with a first side wall of the housing and is pivotable about the hinge portion between closed and open positions. When the access door is in the closed position, the hinge portion of the access door is slideable for sliding movement of the access door between a latching position in which a first latch portion of the access door engages a corresponding second latch portion of the housing to secure the access door in the closed position, and a release position in which the first interlock portion disengages from the second interlock portion to permit pivoting movement of the access door from the closed position to the open position. The access door further comprises at least one locking feature configured to secure the closed access door in the latching position.

Abstract: A system includes a remote server and a device having a wireless transceiver, microphone, and processing circuit. The processing circuit is configured to monitor the microphone for a siren signature. The processing circuit is configured to use the wireless transceiver to send information to the remote server in response to a detection of the siren signature. The remote server causes wireless cameras located near the device to capture a current image and to send the captured image to the remote server for further distribution.

Abstract: Disclosed are methods, and devices for wireless key management for authentication. One method includes receiving a lock identifier from a locking device; determining that the lock identifier is associated with a user profile, wherein a user profile is authenticated and encrypted by a server using a lock key that is stored by the server and the locking device, and wherein the user profile comprises a user key; transmitting the user profile; decrypting the user profile using the lock key; transmitting a security code; generating an encrypted command comprising the security code and encrypted using the user key; transmitting the command; validating the command. Validating the command can include decrypting using the user key; determining whether the security code is valid; and authenticating using the user key; and initiating, in response to validating, an action of the locking device as specified by the command.

Abstract: Disclosed herein are methods, systems, and computer-readable media for operating an electronic locking device. The disclosed methods include a method of predicting a battery life of an electronic locking product based at least in part on a usage history of the electronic locking product. The predicted battery life may include an adjustment based on received weather information relating to a location of the electronic locking device. The disclosed methods include a method of sharing an unlocking code to an electronic locking product by a first user to a second user.

Abstract: A method includes transmitting, by a user device, an encrypted user profile to a locking device, the encrypted user profile including a user key and encrypted by a server using a lock key; decrypting, by the locking device, the encrypted user profile using the lock key to generate a decrypted user profile and obtain the user key from the decrypted user profile; generating, by the user device, an encrypted firmware update command, the encrypted firmware update command encrypted using the user key of the user profile; transmitting, by the user device, the encrypted firmware update command to the locking device; decrypting, by the locking device, the encrypted firmware update command using the user key to generate a decrypted firmware update command; and installing, by the locking device, a firmware update in accordance with the decrypted firmware update command in response to successfully decrypting the encrypted firmware update command.

Abstract: A method for performing a lockout-tagout procedure includes reading, by a sensor of a portable device, a location tag positioned at a location or on a device that an electronic lock is associated with to acquire a location identifier; acquiring, by a communication device of the portable device, audit data from the electronic lock regarding at least one of a lock event or an unlock event of the electronic lock; and at least one of transmitting, by the communication device of the portable device, the audit data and the location identifier to a remote server configured to provide for determination of compliance with the lockout-tagout procedure using the audit data and the location identifier; or interpreting, by a processing circuit of the portable device, the audit data and the location identifier to determine at least one of the lock event or the unlock event is part of the lockout-tagout procedure.

Abstract: Disclosed are methods, systems, and computer-readable media for tracking location of locking devices. One locking device includes a wireless transceiver, a memory, an electronically controllable locking mechanism, a processor, and a location determination circuit configured to determine a location of the electronic locking device. The processor is configured to receive one or more location data items indicating the location of the electronic locking device at one or more times, to store the one or more location data items in the memory, and to transmit the one or more location data items from the memory to a mobile device via the wireless transceiver.

Abstract: A lockout-tagout system for use with at least one securing item may include at least one lock for locking the securing item in place. The lockout-tagout system may further include at least one lockout tag on or near the securing item or lock. The lockout tag may have a wireless identification device. The lockout-tagout system may further include a reader configured to read the wireless identification device.

Abstract: Disclosed herein are methods, systems, and computer-readable media for operating an electronic locking device. The disclosed methods include a method of predicting a battery life of an electronic locking product based at least in part on a usage history of the electronic locking product. The predicted battery life may include an adjustment based on received weather information relating to a location of the electronic locking device. The disclosed methods include a method of sharing an unlocking code to an electronic locking product by a first user to a second user.

Abstract: A method of communicating between a wireless security device and a security server through an access point includes estimating a link latency between a time of transmission of a message from the wireless security device and a time at which a response is received from the security server. A polling mode is enabled in which the access point will hold messages received by the access point that are directed to the wireless security device while the device is in a sleep state, without discarding the messages for a threshold period of time. The wireless security device may be placed in a sleep state and woken after a wake time determined based on the estimated link latency, and receives any messages received by the access point during the sleep state.

Abstract: A system for monitoring a lockout condition of a component includes a lockout device, a lock unit, and a reader. The lockout device is moveable between a lockout condition blocking operation of the component and an access condition permitting operation of the component. The lock unit is configured to be secured to a lockout interface of the lockout device to secure the lockout device in the lockout condition. One of the lockout device and the lock unit includes a communication module configured to communicate a data signal including an identification code identifying the one of the lockout device and the lock unit. The reader is remote from the one of the lockout device and the lock unit, and is configured to receive the data signal at least when the lockout device is assembled with the component and the lock unit is secured to the lockout interface of the lockout device.

Abstract: Systems and methods for dynamically assigning unique identifiers for devices on a bus using repurposed bits. Dynamically assigned unique identifiers can be dynamically assigned bus addresses. Exemplary methods do not require prior knowledge of the presence of devices on the network, accommodate networks with different numbers and types of devices, and allow for a node addresses as small as the number of devices on the network.

Abstract: Disclosed are methods and devices for securely updating firmware of locking devices. One method includes receiving a lock identifier from a locking device; determining that the lock identifier is associated with a user profile by comparing the lock identifier to a set of lock identifiers; receiving a firmware update packet from a server, wherein the firmware packet is encrypted by a lock key; transmitting the firmware update packet to the lock; decrypting the firmware update using the lock key; validating the encrypted firmware update; and installing the firmware update.

Abstract: A padlock includes a lock body, a locking element movable between a locked position and an unlocked position, a latch, a user manipulable lock interface, an actuator mechanism, and a counter member. When the lock interface is operated to a sequence of N correct code entry conditions, the latch is moved from an initial locked position to an unlocked position. When the lock interface is operated to any one of the plurality of code entry conditions, the actuator mechanism engages the counter member and incrementally advances the counter member toward a stop position. When the lock interface is operated to a sequence of N code entry conditions in which at least one of the sequence of N code entry conditions is an incorrect code entry condition, the counter member is moved from the start position to the stop position before the latch can be advanced to the unlocked position.

Abstract: A method of securing communications between a security device and a security server include receiving, at the security server, a registration request from the security device, the registration request being encrypted using an initial registration key. A device identifier and rotation key unique to the security device are transmitted to the security device. A first session key request is received at the security server from the security device, the request being encrypted using the rotation key. A first session key is transmitted to the security device in response. One or more communications, encrypted using the first session key, is received at the security server from the security device. A second session key request is received at the security server from the security device after the first session key has expired, the request encrypted using the rotation key. A second session key is transmitted to the security device in response.

Abstract: Circuits and methods allowing virtually any number of batteries to be connected in parallel without the supply voltage being substantially reduced, while allowing their capacities to add directly as well as increasing the current capability of the batteries by placing the batteries' internal resistances in parallel.

Abstract: A lockable enclosure includes a housing and an access door assembled with the housing and movable between a closed position and an open position. A latch is carried by the access door and is slideable along a first axis between a door latching and a door releasing position. A plurality of dials are carried by the access door and rotatable about a post extending along a second axis. When each of the plurality of dials is rotated to an unlocking orientation, an outer peripheral recess on each of the dials aligns with a corresponding dial engaging portion of the latch, allowing the latch to slide along the first axis from the door latching position to the door releasing position.

Abstract: Disclosed are methods, systems, and computer-readable media for wireless key management for authentication. Authentication includes transmitting a request to a locking device, transmitting a security challenge to the mobile device, and transmitting a response to the challenge and an encrypted user profile for the locking device. The response includes data generated with an access key that is stored by both the mobile device and the locking device, and the user profile is encrypted by a server using a secret key that is stored by the server and the locking device. Authentication further includes verifying the response to the challenge, where the response is verified using the access key, and validating additional data from the mobile device. An action of the locking device may be initiated as specified by the request.

Abstract: Disclosed are methods, and devices for wireless key management for authentication. One method includes receiving a lock identifier from a locking device; determining that the lock identifier is associated with a user profile, wherein a user profile is authenticated and encrypted by a server using a lock key that is stored by the server and the locking device, and wherein the user profile comprises a user key; transmitting the user profile; decrypting the user profile using the lock key; transmitting a security code; generating an encrypted command comprising the security code and encrypted using the user key; transmitting the command; validating the command. Validating the command can include decrypting using the user key; determining whether the security code is valid; and authenticating using the user key; and initiating, in response to validating, an action of the locking device as specified by the command.