Abstract: A home automation (HA) system may include HA operation devices within a structure and HA user interface devices within the structure for respective users. Each HA user interface device may wirelessly communicate with at least one of the HA operation devices to perform at least one HA operation. The HA system may also include HA hub devices to provide communications within the structure for the HA user interface devices and HA operation devices. The HA hub devices may each have an HA hub device identifier associated therewith and determine a wireless communications time slot for wirelessly communicating with corresponding ones of the HA operation devices. Each wireless communications time slot may be determined relative to a reference time with a corresponding time offset based upon the associated HA hub device identifier so that the wireless communications time slot is non-overlapping in time with other wireless communications time slots.

Abstract: An electromechanical lock includes a user interface configured to receive input from a user, the user interface activating operating power for the lock; a memory configured to store access tables, the access tables including information on the keys allowed to open the lock; and an electronic circuitry configured to modify the access tables on the basis of the insertions of an associate master key and an end function key into the lock, the insertion of the associated master key initializing a programming mode and the insertion of an end function key causing the lock to exit the programming mode.

Abstract: A retainer arrangement that includes a retainer for retaining a hinged arm on a vehicle in a stored position positively so that the hinged arm does not move away from the vehicle unintentionally. The arrangements may be used in connection with a hinged stop arm that is attached to the side of a school bus that is deployed when the school bus stops to pick-up or drop off passengers.

Abstract: A load terminal for use in a remote controlled load management system includes a control unit for starting to count a delay time and sending to a central controller monitoring data indicating that an illumination load has been turned off while controlling a power supply ON/OFF unit to keep the power supply to the illumination load when a transmission signal including a control data instructing to turn off the illumination load is received by a transmission signal transceiver unit. The control unit restarts the count of the delay time when the transmission signal transceiver unit receives a transmission signal including a control data instructing to turn on the illumination load during the count of the delay time from the central controller.

Abstract: A cell site environmental control system includes multiple relays, each monitoring a specific device whose status may have an impact on the environmental condition at the cell site. The cell site environmental control system includes a microprocessor-based central control module that issues environmental control instructions upon receipt of monitoring signals from the monitoring relays. The monitoring signals are captured at a punch-down block that has connections to the monitoring relays and routed from the punch-down block to the central control module.

Abstract: A rugged, miniature, waterproof and lightweight magnetic latching indicator with an auxiliary switch. The indicator includes a solenoid, an elongated plunger mounted in the solenoid, the plunger supporting a first permanent magnet with the magnet being surrounded by specially dimensioned non-magnetic spacers. The plunger and solenoid are packaged in a non-magnetic housing with a solenoid locator, a top cap and a bottom cap maintaining the indicator in a compact waterproof package. An indicator button is mounted to the plunger and a reed switch biasing spring and second permanent magnet are located between the bottom cap and the solenoid. The plunger moves from a retracted latching position to an extended position. In the retracted position, the indicator button is retracted and not readily visible and the second permanent magnet maintains the reed switch in a closed position.

Abstract: In order to receive protection commands in a remote tripping device, one or more signals is or are received, protection commands and combinations of protection commands are coded by means of an individual signal or by means of a predetermined combination of signals, and each protection command is allocated a predetermined minimum safety and/or security value.

Abstract: A building monitoring system is disclosed that includes a bi-directional radio link between a master and a number of remote units, wherein the master unit schedules the transmission times of the remote units to avoid collisions.

Abstract: A security alarm system that may be selectively armed or disarmed when monitoring a protective premises is described which utilizes the position of an entry door to determine whether the security system should be armed or disarmed. The security system comprises (i) an entry door for permitting ingress to the protected premises from the outside of the entry door and egress from the protected premises from the inside of the door; (ii) means for selectively closing and opening the entry door; and (iii) a switch having a first state indicative of the entry door being in a closed position and a second state indicative of the entry door being in an open position wherein, when the switch is in its first state, the security system is armed and, when the switch is in its second state, the security system is disarmed.