Abstract: A method is provided for tuning an oxygen trim controller during the commissioning of a combustion control system for controlling operation of a boiler combustion system, rather than tuning the oxygen trim controller after the commissioning process has been completed.

Abstract: A system and method for monitoring a location having at least one sensor for sensing a change in at least one condition using voice tags to announce alarms. The system includes a registration process where a voice recorder and a digital conversion unit form digital voice tags from recorded speech representing the type and location of sensors. The voice tag is sent as part of an alarm message or pre-stored in a control panel for later retrieval such that the type and location of an alarm is reproduced vocally at the time of the alarm. The registration process may be completed with a registration module which may be a keypad or the voice recorder may be included in the sensors. Additional features include sensor location change notification to ensure the stored voice tag represents the current location of the sensor.

Abstract: An actuator for an electronic door lock includes a stationary first magnet assembly, a beam, and a second magnet assembly. The first magnet includes at least one magnet stationarily positioned within the electronic door lock. The beam is movable relative to the first magnet assembly to a first position and a second position. The second magnet assembly is connected to the beam and is configured to be magnetically repulsed away from the first magnet assembly. The repulsion of the second magnet assembly maintains the beam in either the first or second position until the beam is selectively actuated therefrom.

Abstract: A method is provided for the automated setup of a metered combustion control system for controlling operation of a boiler combustion system. The automated setup process includes both commissioning and controller tuning, rather than tuning the carbon monoxide and/or oxygen trim controller after the commissioning process has been completed. The oxygen trim controller or the carbon monoxide trim controller is used to identify the air/fuel ratio.

Abstract: A security system useful for monitoring an automated teller machine (ATM) includes a camera that provides images of at least selected portions of the ATM. A controller automatically determines whether a difference between a reference image of the ATM and a subsequently acquired image from the camera indicates an alteration to the ATM. One example provides the ability to detect whether a skimming reader has been placed adjacent a card receiving slot. A disclosed example includes acquiring a plurality of reference images corresponding to different lighting conditions and using an appropriate one of the reference images based upon a lighting condition or time of day associated with a subsequently acquired image.

Abstract: A two-phase liquid/inert gas flow inerting fire suppression system is provided having improved liquid fire suppressant distribution within the inert gas flow. The system includes a flow distribution network having a first pipe interconnected with a second pipe at a flow splitting tee. A liquid flow redistribution device is disposed in the first pipe upstream with respect to fluid flow of the flow splitting tee.

Abstract: An adjustable door strike includes a mounting bracket (10) and an adjustable strike (12) mounted to a doorframe (26) that allows for the position of the strike (12) to be adjusted such that it is aligned with latch and/or deadbolt mounted on a door. The mounting bracket (10) includes a first mounting aperture (14(a), a second mounting aperture (14b) and a rectangular opening (16) located between the first mounting aperture (14a) and the second mounting aperture (14b). The adjustable strike (12) includes a first slotted aperture (18a) located on a first edge of the adjustable strike (12), a second slotted aperture (18b) located on a second edge opposite the first edge of the adjustable strike (12), and a latch opening (22).

Abstract: A video recognition system detects the presence of fire based on video data provided by one or more video detectors, but suppresses the triggering of an alarm in situations based on the selection of acceptable regions and application of rules associated with each acceptable region. A user defines acceptable regions within the field of view of the video detector and associates with each acceptable region a rule. During processing of video data associated with the field of view, video metrics are calculated and analyzed to detect the presence of fire (e.g., flame or smoke). Prior to triggering an alarm, regions identified as indicative of fire are compared with the user-defined acceptable regions. If there is overlap between the two regions, the rule associated with the acceptable region is applied to determine whether the alarm should be suppressed or triggered.

Abstract: A hybrid fire suppression system includes a supply of pressurized inert gas, a pipe network connected in inert gas flow communication to the inert gas supply, a first inert gas nozzle, a second inert gas nozzle, and a water storage cartridge having an interior volume defining a water reservoir storing a limited amount of water. The water reservoir communicates with the second inert gas spray nozzle. The first inert gas nozzle connects with the first terminus for introducing a flooding flow of inert gas only into a first protected space. The second inert gas nozzle connects with the second terminus for introducing a flooding flow of inert gas and the limited amount of water from the water reservoir into the second protected space.

Abstract: A weather-proof notification device includes an enclosure having an integrally formed grille and a speaker located within and attached to the enclosure proximate the grille. The grille is configured to inhibit the entry of rainwater into the interior of the enclosure. A water-resistant or water-tight seal is provided between the speaker and the enclosure, and the speaker includes a water-repellent diaphragm, in order to prevent water from migrating from the sound chamber into the operating electrical compartment. A drain is provided on the grille to permit free drainage of water from the sound chamber.

Abstract: A card reader housing (20) has an exterior surface configuration (22) that includes a plurality of distinct surface portions (24-38) aligned at oblique angles relative to each other. The exterior surface configuration (22) prevents the placement of a skimming reader over the top of the card reader housing (20). In a disclosed example, a finger-receiving notch (50) is directly aligned with a reader (60) and has a depth and a dimension sized for receiving at least a portion of a finger holding a card inserted into a slot (46) in the housing (20). Any alteration of the notch (50) dimensions prevents proper operation of the card reader.

Abstract: A life safety assembly includes an attachment stud configured to attach to a surface, and a life safety device that is mountable on the attachment stud. The life safety device has a receptacle configured to receive and interlock with the attachment stud to mount the life safety device with respect to the surface.

Abstract: A method for detecting flame and smoke using spatial analysis of video input (40) provided by a video detector. The video input (40) consists of a number of individual frames, wherein analysis is performed on each individual frame to detect and outline regions that may contain smoke or flame (42). Based on the defined outline or boundary of each detected region, spatial features associated with the region are extracted (52), such as perimeter/area and surface area/volume. The extracted spatial features are related to one another (54) to determine the likelihood that the region contains smoke or flame. Extracted spatial features may be related to one another using a power law relationship that provides an indication of the turbulence associated with a bounded region, wherein turbulence is a characteristic of both flame and smoke.

Abstract: A system and method for monitoring a location having at least one sensor for sensing a change in at least one condition using voice tags to announce alarms. The system includes a registration process where a voice recorder and a digital conversion unit form digital voice tags from recorded speech representing the type and location of sensors. The voice tag is sent as part of an alarm message or pre-stored in a control panel for later retrieval such that the type and location of an alarm is reproduced vocally at the time of the alarm. The registration process may be completed with a registration module which may be a keypad or the voice recorder may be included in the sensors. Additional features include sensor location change notification to ensure the stored voice tag represents the current location of the sensor.

Abstract: A method for recognizing fire using block-wise processing of video input provided by a video detector. Video input is divided into a plurality of frames (42), and each frame is divided into a plurality of blocks (44). Video metrics are calculated with respect to each of the plurality of blocks (46), and blocks containing the presence of fire are identified based on the calculated video metrics (74). The detection of a fire is then communicated to an alarm system.

Abstract: A security system useful for monitoring an automated teller machine (ATM) includes a camera that provides images of at least selected portions of the ATM. A controller automatically determines whether a difference between a reference image of the ATM and a subsequently acquired image from the camera indicates an alteration to the ATM. One example provides the ability to detect whether a skimming reader has been placed adjacent a card receiving slot. A disclosed example includes acquiring a plurality of reference images corresponding to different lighting conditions and using an appropriate one of the reference images based upon a lighting condition or time of day associated with a subsequently acquired image.