Abstract: A communication device comprises a processing circuit having at least two modes, a sleep mode and an awake mode, a wireless communications circuit that can wirelessly send a message as to whether an alarm has been triggered, and a passive sensor, powered by audio signals impinging on the passive sensor, that provides at least an approximation of an audio signal to the processing circuit so as to cause the processing circuit to switch between the at least two modes. The communication device can be housed in a housing sized to fit into a battery compartment.

Abstract: An auxiliary device for a hazard alarm constructed as a point type detector, in particular for a smoke alarm or smoke gas alarm. The device is a separate unit that can be attached to the hazard alarm and is provided to monitor the function thereof. It has a transmitting unit and/or a receiving unit for the detection of objects in the vicinity of the hazard alarm. The auxiliary device monitors smoke inlet openings of the hazard alarm. An arrangement containing the hazard alarm and the auxiliary device attached thereto and matched thereto in terms of construction and/or connections is also provided. The auxiliary device of this kind is used for monitoring the vicinity of the hazard alarm for current-shielding objects, for monitoring an inlet opening of the hazard alarm for contamination and optionally for monitoring the function of an acoustic alarm signaling device of the hazard alarm.

Abstract: A method and device for early detection of fires is based on the detection of volatile thermolysis products which are characteristic of the material to be monitored, ambient air being aspirated from an area to be monitored with respect to fire and being ionized, the ionized gas flow being channeled through an electromagnetic field, the resulting field strength of which modifying the trajectories of the ions in their temporal and spatial dependence with a parameter set in such a manner that positive and/or negative ions of the ionized gas are forced onto pre-determined trajectories and are detected for generating a fire alarm. Accordingly, fires can be detected quickly and reliably in the earliest possible phase before their full development so that taking or initiating follow-up actions can occur particularly quickly and at an early stage.

Abstract: This invention comprises a fire and smoke detector and alarm device comprising a base unit which is recess-mounted into a surface and has at least three female connectors connected with basic wiring attached to each female connector; a battery quick connect locking a battery into the base unit when the battery is pushed into said battery quick connect by a first push; a bottom unit which is removably attached to the base unit using a hand manipulated pole; at least one detector for detecting a prescribed condition in an airstream, the at least one detector connected to the basic wiring; and at least one alarm for projecting a sound when the at least one detector detects the prescribed condition in the airstream, the alarm also connected to the basic wiring; wherein when the battery is locked into said battery quick connect via a first push, said battery provides a power source for the basic wiring; the battery disengages from the battery quick connect via a second push for removal of the battery, said removal

Abstract: An integrated circuit, in particular a microcontroller, for operation in an area with ionizing radiation, has at least one part of a temperature control circuit. The temperature control circuit performs a regulated increase in the circuit temperature to a predefined, essentially constant operating temperature, by increasing the electrical power consumption of the circuit by an adjustable additional electrical power. The circuit has an output facility for information about damage to the integrated circuit caused by the ionizing radiation impacting thereon, it being possible to determine the information about damage from a radiation-dose-dependent decrease in the adjustable additional electrical power.

Abstract: A carbon monoxide safety device detects levels of carbon monoxide producible by a device and deactivates the device upon detection of a predetermined level of carbon monoxide. The device includes a housing and a processor coupled to the housing. A plurality of wires is electrically coupled to the processor. A sensor is operationally coupled to the processor wherein the sensor measures a level of carbon monoxide. A switch is operationally coupled to the sensor wherein the sensor sends a deactivation signal to the switch to deactivate the source of carbon monoxide upon the sensor detecting a predetermined level of carbon monoxide.

Abstract: A particular smart hazard detector may itself function as a guide during a process of installation of the same at an installation location. Additionally, the installation location of the particular smart hazard detector may play a central role in how various settings of the smart hazard detector are defined and adjusted over time.

Abstract: A sensor unit that includes at least one sensor configured to measure an ambient condition is described. The controller can be configured to receive instructions, to report a notice level when the controller determines that data measured by the at least one sensor fails a report threshold test corresponding to a report threshold value. The controller can also be configured to obtain a plurality of calibration measurements from the at least one sensor during a calibration period and to adjust the threshold based on the calibration measurements. The controller can be configured to compute a first threshold level corresponding to background noise and a second threshold level corresponding to sensor noise, and to compute the report threshold value from the second threshold. In one embodiment, the sensor unit adjusts one or more of the thresholds based on ambient temperature.

Abstract: Methods and apparatus for smoke detection are disclosed. In one embodiment, a smoke detector uses linear discriminant analysis (LDA) to determine whether observed conditions indicate that an alarm is warranted.

Abstract: The smoke detector comprises a housing provided with one or more openings for the passage of smoke particles into an interior of the housing. A first electrode and a second electrode are disposed in the interior of the housing and generate an electric field by application of an electrical potential therebetween. A detection chamber is defined between the first electrode and the second electrode, the detection chamber comprising an ionization zone for the generation of charged particles by ionization of air in the vicinity of the second electrode and a drift zone for the movement of charged particles towards the first electrode. A measurement device measures an electrical parameter representative of the electrical current generated between the first electrode and the second electrode by the charged particles.

Abstract: An optical smoke detector (110) is provided that comprises a housing (112) having a base (114) for attaching the detector to a surface and a cover (116) having a side wall (124) and a bottom wall (126) defining the interior of said cover. An optical sensor (131) is provided for generating a signal representative of the detected light and a control circuit (130) is provided for controlling operation of the detector. The control circuit (130) includes a plurality of temperature sensors (D1, D2) for sensing a rise in ambient temperature and generating a signal representative thereof. The temperature sensors (D1, D2) are located above an internal surface of said bottom wall (126) within the housing and are substantially equally spaced. The control circuit (30) is operable to compare said representative signal with a reference signal and generate an alarm signal in dependence thereon.

Abstract: The invention provides use of one or more emitted beams of radiation (16), for example, laser beam(s), in combination with an image capturing means (14), for example, one or more video cameras and/or optical elements to detect particles (30), for example, smoke particles, located in an open space (12).

Abstract: In various embodiments, a hazard detector is presented. The hazard detector may include a hazard detection sensor that detects a presence of a type of hazard. The hazard detector may include a light and a light sensor that senses a brightness level in an ambient environment of the hazard detector. The hazard detector may include a processing system configured to receive an indication of the brightness level in the ambient environment of the hazard detector from the light sensor. The processing system may determine the brightness level in the ambient environment of the hazard detector has reached a threshold value. A status check of one or more components of the hazard detector may be performed. The processing system may cause the light to illuminate using a selected illumination state in response to the determining the brightness level in the ambient environment of the hazard detector has reached the threshold value.

Abstract: Various devices, systems, and methods may be presented. A wireless device may include a smoke sensor configured to obtain measurement data regarding a level of smoke. The wireless device may operate in a sleep mode while the smoke sensor obtains the measurement data. The wireless device may determine, from the measurement data, whether the level of smoke has exceeded a warning threshold. In response to determining that the level of smoke has exceeded the warning threshold, the wireless device may communicate a warning indication. The wireless device may determine, from the measurement data, whether the level of smoke has exceeded an alarm threshold. In response to determining that the level of smoke has exceeded the alarm threshold, the wireless device may communicate an alarm indication, the alarm indication indicating that the alarm threshold has been exceeded.

Abstract: A method for self-testing notification appliances in an alarm system, including the steps of measuring ambient noise at a notification appliance, comparing the measured ambient noise to a threshold ambient noise level, and performing a self-test of the notification appliance if the measured ambient noise does not exceed the threshold ambient noise level. The method may further include the step of recording a fail result for the notification appliance if the measured ambient noise exceeds the threshold ambient noise level. Performing the self-test of the notification appliance may include the steps of activating a notification feature of the notification appliance, measuring output of the notification feature, comparing the measured output to a predefined value, recording a pass result for the notification appliance if the measured output exceeds the predefined value, and recording a fail result for the notification appliance if the measured output does not exceed the predefined value.

Abstract: According to one embodiment, a hazard detector may include a back plate and a front casing coupled to the back plate to define a housing having an interior region and an opening through which air flows into the interior region. A circuit board may be coupled to the back plate and have a plurality of components mounted thereon. A smoke chamber may be mid-mounted on the circuit board, mid-mounting being characterized in the smoke chamber extending through a hole formed in the circuit board such that a top surface of the smoke chamber is positioned above a top surface of the circuit board and a bottom surface of the smoke chamber is positioned below a bottom surface of the circuit board, whereby an interior region of the smoke chamber is accessible to smoke from both the top and bottom surfaces of the circuit board.

Abstract: Ambient amount of a hazardous condition may be monitored. A mode may be set to a state indicative of the hazardous condition being present in the ambient environment. It may then be determined that the amount of the hazard in the ambient environment has dropped below a threshold hazardous condition level. A time period may then be tracked during which the amount of the hazardous condition present in the ambient environment of the hazard detector has remained below the threshold hazardous condition level. It may be determined that the time period has reached at least a threshold duration, during such time period the amount of the hazardous condition present in the ambient environment of the hazard detector having remained below the threshold hazardous condition level. An indication of the hazardous condition easing may be output in response to the time period being at least the threshold duration.

Abstract: Hazard detector for providing a pre-alarm of a developing hazardous condition includes a detection module that detects a hazard level of smoke or carbon monoxide, a storage module that stores a pre-alarm threshold and an emergency threshold, a light source that generates light in a first color, a second color, and a third color, a speaker that generates an audible sound, a horn that generates an audible alarm that a higher volume than the speaker, and a processing module. The processing module receives the detected hazard level and compares it with the pre-alarm threshold and the emergency threshold. The processing module determines that the hazard level is greater than the pre-alarm threshold and less than the emergency threshold and generates an audible pre-alarm speech via the speaker that warns of the developing hazardous condition. The processing module also activates the light source in the second color.

Abstract: System for displaying hazard events and adjusting hazard detector settings on a mobile device includes a user interface executed on the mobile device, a hazard detector, and a computer server system communicatively coupled to the mobile device and hazard detector. The hazard detector generates hazard events indicating detection of smoke or carbon monoxide. The hazard events are transmitted to the computer server system and then to the mobile device. User interface displays the hazard events in an event group. User interface receives an adjusted value for a setting of the hazard detector and transmits the adjusted value to the computer server system. The computer server system determines that the adjusted value corresponds to the hazard detector, receives a check-in event from the hazard detector, and transmits the adjusted value to the hazard detector in response to receiving the check-in event. The hazard detector applies the adjusted value to the setting.

Abstract: System for customizing hazard notifications based on user activity includes a hazard detector and a computer server system communicatively coupled to the hazard detector. The hazard detector detects a hazard level that is greater than a threshold setting, the hazard level indicating an amount of smoke or carbon monoxide present at the hazard detector. The hazard detector generates hazard data indicating the detection of the hazard level and transmits the hazard data to the computer server system. The computer server system associates a location with the hazard detector. Activity data indicating a user location is received at the computer server system and the hazard data is received at the computer server system. The computer server system generates a notification based on the hazard location and the user location in response to receiving the hazard data.

Abstract: A particular smart hazard detector may itself function as a guide during a process of installation of the same at an installation location. Additionally, the installation location of the particular smart hazard detector may play a central role in how various settings of the smart hazard detector are defined and adjusted over time.

Abstract: A smoke detector system that includes an airflow barrier installed between a detector base unit and a mounting surface to ensure there is separation between the detector base unit and the mounting surface. The barrier isolates and seals the smoke detector to prevent the formation of condensation in or around the smoke detector. The barrier further includes a cavity that can collect condensation if condensation does occur. The condensation is then directed to a channel that extends around the periphery of the airflow barrier. Additionally, the channel includes weep holes so that condensation has a means to exit the detector.

Abstract: In various embodiments, a hazard detector is presented. The hazard detector may include a hazard detection sensor that detects a presence of a type of hazard. The hazard detector may include a light and a light sensor that senses a brightness level in an ambient environment of the hazard detector. The hazard detector may include a processing system configured to receive an indication of the brightness level in the ambient environment of the hazard detector from the light sensor. The processing system may determine the brightness level in the ambient environment of the hazard detector has reached a threshold value. A status check of one or more components of the hazard detector may be performed. The processing system may cause the light to illuminate using a selected illumination state in response to the determining the brightness level in the ambient environment of the hazard detector has reached the threshold value.

Abstract: A system and method of providing a protective cover to occupants of a room, which includes detecting an occurrence of a threatening event with a protection system deployed in the room, such as detecting gunfire with the protection system and/or receiving a transmitted command of the threatening event by the protection system, and emitting an obscuring haze into the room from a haze generator of the protection system in response to the detected occurrence of the gunfire. The emitted obscuring haze obscures the light of sight contact between a shooter and the occupants in the room, which provides a measure of cover for the occupants while other assistance is being organized. This reduces the chances that the shooter will be able to accurately shoot any victim, increasing the odds of victim survival.

Abstract: A rail vehicle includes an aspirating or induction smoke alarm or detector which is connected by a line to at least one aspiration or induction end piece having a defined opening cross-section for collecting air samples. At least one line piece made of flexible material extends outward from the aspiration or induction end piece in the direction of the aspirating or induction smoke alarm or detector.

Abstract: According to one embodiment, a hazard detector may include a housing having a back plate and a front casing coupled therewith to define an interior space within which various components are contained. The components may include an alarm device and a hazard sensor that is configured to detect a potentially hazardous condition to trigger the alarm device. A cover plate may be coupled with the housing and may face an occupant of a room in which the hazard detector is positioned. The cover plate may include a relatively large population of relatively small openings that are positioned, configured, and dimensioned so that internal components are substantially hidden from view of the occupant while air is allowed to substantially freely flow through the cover plate. A collective area of the openings may be at least 30% of the total area of the cover plate.

Abstract: This fire detector is provided with a light-emitting portion that repeats stopping of light emission and light emission a plurality of number of times in predetermined light emission periods during a predetermined smoke detection operation time set for each first period; a light-receiving portion that receives the light emitted from the light-emitting portion and outputs a light reception signal during the smoke detection operation time; a light reception signal detecting portion that detects as a zero-point light reception signal the light reception signal that the light-receiving portion outputs at each light emission stop timing of the smoke detection operation time, and detects as a smoke light reception signal the light reception signal that the light-receiving portion outputs at each light emission timing; a smoke detecting portion that detects a smoke detection signal based on the zero-point light reception signals of a plurality of number of times and the smoke light reception signals of a plurality o

Abstract: Various devices, systems, and methods may be presented. A sensor unit may be presented that includes a housing and a chamber arranged within the housing. The sensor unit may include a controller arranged within the housing. The controller may receive information from an HVAC (heating ventilation and air conditioning) system, wherein the information is indicative of operation of the HVAC system. The controller may determine an effect of the HVAC system on measurements made by the sensor using the information from the HVAC system.

Abstract: According to one embodiment, a multi-sensing hazard detector for detecting potential dangers may include a back plate and a front casing that is coupled with the back plate to define a housing. A circuit board and a plurality of components may be positioned within the housing. The circuit board may be communicatively coupled with the components. The components may include, among other components, an alarm device, an occupancy sensor, and a smoke chamber. The alarm device may be activatable upon the detection of a potential hazard to warn an occupant of a potential danger, the occupancy sensor may be configured to detect the presence and/or movement of objects external to the hazard detector, and the smoke chamber may be configured to detect the presence of smoke to cause a triggering of the alarm device. The housing may comprise a volume of less than 1024 cubic centimeters.

Abstract: Various devices, systems, and methods may be presented. A wireless device may include a smoke sensor configured to obtain measurement data regarding a level of smoke. The wireless device may operate in a sleep mode while the smoke sensor obtains the measurement data. The wireless device may determine, from the measurement data, whether the level of smoke has exceeded a warning threshold. In response to determining that the level of smoke has exceeded the warning threshold, the wireless device may communicate a warning indication. The wireless device may determine, from the measurement data, whether the level of smoke has exceeded an alarm threshold. In response to determining that the level of smoke has exceeded the alarm threshold, the wireless device may communicate an alarm indication, the alarm indication indicating that the alarm threshold has been exceeded.

Abstract: Various devices, systems, and methods may be presented. A sensor unit may be presented that includes a housing and a chamber arranged within the housing. The sensor unit may include a controller arranged within the housing. The controller may receive information from an HVAC (heating ventilation and air conditioning) system, wherein the information is indicative of operation of the HVAC system. The controller may determine an effect of the HVAC system on measurements made by the sensor using the information from the HVAC system.

Abstract: Incident response methods include receiving notification that an incident has occurred, determining a source of the notification, the source being near the incident, and establishing at least one guided path configured to direct a first person, a first animal, or a first movable device positioned near the source away from the incident and/or to direct a second person, a second animal, or a second movable device toward the incident. Electronic guides include an indicator, and processing circuitry configured to receive a request to configure the indicator from an inactive state to an active state in which the indicator encourages a first person positioned near a first side of the electronic guide to move toward the electronic guide and encourages a second person positioned near a second side of the electronic guide to move away from the electronic guide and configure the indicator according to the request.

Abstract: An alarm for detecting smoke comprises a housing (1) having vents (9) for allowing ingress of smoke into the housing. A sensor chamber (22,26) is disposed within the housing and has vents (24a,24b) for allowing ingress of smoke into the sensor chamber and comprises two parts. A diode emitter and diode sensor (25) is mounted within the sensor chamber for sensing light reflected off smoke. An alarm circuit (32), including detection means for detecting smoke sensed by the sensor diode (25), is supported on a printed circuit board (PCB) (29). The PCB is sandwiched between two halves (22 and 26) of the sensor chamber such that an edge (30) thereof extends part-way into said sensor chamber. The sensor is mounted on, near or adjacent to the edge.

Abstract: The detection device comprises a sensor, a power supply, an alarm and an acousto-electric transducer. The activated acousto-electric transducer receives an acoustic signal and emits an electrical signal representative of the acoustic signal. The detection device further comprises a means of recognizing a predefined acoustic signal according to the electrical signal emitted by the transducer and triggering an emission of a message by the alarm when the predefined acoustic signal is recognized. The acoustic-electric transducer is only activated at regular intervals. Preferably, the transducer also serves an alarm to emit the message when the predefined acoustic signal is recognized.

Abstract: A sensor unit that includes at least one sensor configured to measure an ambient condition is described. The controller can be configured to receive instructions, to report a notice level when the controller determines that data measured by the at least one sensor fails a report threshold test corresponding to a report threshold value. The controller can also be configured to obtain a plurality of calibration measurements from the at least one sensor during a calibration period and to adjust the threshold based on the calibration measurements. The controller can be configured to compute a first threshold level corresponding to background noise and a second threshold level corresponding to sensor noise, and to compute the report threshold value from the second threshold. In one embodiment, the sensor unit adjusts one or more of the thresholds based on ambient temperature.

Abstract: A sensor unit that includes at least one sensor configured to measure an ambient condition is described. The controller can be configured to receive instructions, to report a notice level when the controller determines that data measured by the at least one sensor fails a report threshold test corresponding to a report threshold value. The controller can also be configured to obtain a plurality of calibration measurements from the at least one sensor during a calibration period and to adjust the threshold based on the calibration measurements. The controller can be configured to compute a first threshold level corresponding to background noise and a second threshold level corresponding to sensor noise, and to compute the report threshold value from the second threshold. In one embodiment, the sensor unit adjusts one or more of the thresholds based on ambient temperature.

Abstract: The invention relates to a tester and test method for smoke amount of electrical cigarette. The tester includes a collect device, a testing device, a control device as well as an input and output device. The input and output device is used to set test parameters, alarm and display a value of smoke amount and a test result whether qualified. The collect device, used to collect smoke, can precisely control a pumping smoke time and a pumping smoke capacity by introducing a step motor. The testing device, utilizing a light emitter and receiver, test a smoke amount. If the smoke amount tested is less than a predetermined smoke amount, an alarm system alarms by way of display and/or sound. The invention quantifies smoke amount of electronic cigarette, which can be adopted in the manufacture field of electronic cigarette to test smoke amount.

Abstract: A sensor unit that includes at least one sensor configured to measure an ambient condition is described. The controller can be configured to receive instructions, to report a notice level when the controller determines that data measured by the at least one sensor fails a report threshold test corresponding to a report threshold value. The controller can also be configured to obtain a plurality of calibration measurements from the at least one sensor during a calibration period and to adjust the threshold based on the calibration measurements. The controller can be configured to compute a first threshold level corresponding to background noise and a second threshold level corresponding to sensor noise, and to compute the report threshold value from the second threshold. In one embodiment, the sensor unit adjusts one or more of the thresholds based on ambient temperature.

Abstract: A porch light assembly with an emergency signaling device is disclosed. The emergency signaling device is in the form of a strobe light associated with a porch light, the strobe light being in communication with one or more smoke detectors installed within the building or residence. The strobe light can be mounted integrally within the mounting base of the lighting fixture itself or a separate mounting base with strobe light can be attached to a separate lighting fixture. The strobe light can be hardwired to the same electrical circuit operating the smoke detectors or can be connected wirelessly with the smoke detectors. Upon activation, the strobe light provides a visual emergency signal on the exterior of the building or residence allowing emergency crews to quickly and easily identify the building or residence in need of assistance.

Abstract: A fire and flammable gas system comprises a signal detector installed in a detection area for detecting flue gas, temperature or flammable gas signal; an alarm controller for real time collecting flue gas, temperature or flammable gas signal detected by the signal detector; a data manager for recording and storing an initial background value of the detector and detection data of the detector during running process, and analyzing the historical data of the detector during running process in real time so as to carry out early-warning in advance or detector self-diagnosis or alarm threshold adjusting; and an early-warning monitor for displaying early-warning analysis result output by the data manager on the monitor. A fire and flammable gas method is also provided.

Abstract: A system for evacuating persons from a vehicle includes a light signal generating device, which is adapted to emit at least one visual light signal that indicates at least one preset escape route for at least one person to be evacuated.

Abstract: A smoke alarm comprises smoke detection circuitry for detecting smoke and generating a detection signal responsive thereto. Proximity detection circuitry generates a proximity detection signal responsive to detection of an object within in a selected distance of the smoke alarm. Alarm generation circuitry generates an audible alarm responsive to the detection signal. The audible alarm may be deactivated for a predetermined period of time responsive to at least one proximity detection signal.

Abstract: In accordance with certain embodiments, a smoke detector utilizes a reflected-light signal and sensed ambient light to determine the presence of smoke particles.

Abstract: An environmental monitoring device that includes an acoustic sensor is described. During operation of the environmental monitoring device, the acoustic sensor provides acoustic data based on measurements of sound in an external environment that includes the environmental monitoring device. Based on the acoustic data, a control mechanism determines if an alarm device, which is separate from the environmental monitoring device, is activated. For example, the environmental monitoring device may determine if a smoke detector is activated based on measurements of sound, such as a temporal 3 acoustic pattern. In addition, a sensor mechanism in the environmental monitoring device may provide sensor data based on measurements of an environmental condition in the external environment. The control mechanism may use the sensor data to assess a degree of threat in the external environment, and the environmental monitoring device may output different audible sounds as the degree of threat changes.

Abstract: In accordance with certain embodiments, a smoke detector utilizes broadband light with a plurality of wavelengths to determine the presence of smoke.

Abstract: In accordance with certain embodiments, a smoke detector comprises a housing, a light source, one or more light detectors, and an evaluation circuit for determining the presence of smoke particles outside the housing based on light emitted from and reflected back into the housing, as well as light emitted within the housing without emission therefrom.

Abstract: A device uses motion detection and heat detection to monitor a room and heating appliance and to remind a user to check on the appliance after a period of time. A motion detector sensor observes motion within a room or area by the heating appliance. If someone is in the area, then the device resets itself. If no one is detected, then the device alerts a user if heat is detected by a heat sensor. The alert prevents a possible heating or cooking emergency.

Abstract: This smoke detector is provided with: a plurality of light emitting devices which emit light beams of mutually different wavelengths; and a plurality of scattered light receiving sections which receive, at a different scattering angle for each light beam of the respective wavelengths, scattered light generated due to the plurality of light beams emitted simultaneously from these light emitting devices impinging on smoke.

Abstract: An aspirated smoke detector includes a manifold coupled to a smoke sensing chamber of the smoke detector. The manifold couples ambient smoke from a plurality of locations to the smoke sensing chamber. A location of the origin of the smoke can be determined by associating a member of a plurality of a different type of smoke sensor with each of the locations. When smoke is detected in the sensing chamber, the members of the plurality can be interrogated to determine the location of the origin of the smoke in the sensing chamber.

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.