Abstract:
The acoustic sound of water flowing to/from activated sprinkler heads is used to identify fire location in a region(s). Acoustic transducers, such as microphones, can be located in the vicinity of sprinkler heads. Active heads, spraying water, will produce sounds of flowing water to which the transducers respond. Alternately, acoustic flow sensors can be coupled to sprinkler head feed pipes.
Abstract:
An alarm for detecting radiation and/or pollutants such as smoke, carbon monoxide or the like has a housing (3, 4), a mounting plate (2) for mounting the housing to a flat surface, cooperating means (25, 12) on the housing and the mounting plate engageable to secure the housing to the mounting plate, and an alarm circuit (70) including a detector (74) for detecting the radiation and/or pollutants. The alarm also has a switch (101) in the alarm circuit in the housing (3, 4) and a magnet on the mounting plate (2), the arrangement being such that the magnet actuates the switch in response to engagement of the housing with the mounting plate thereby to arm the circuit. A battery compartment (11) in the housing (3, 4) receives a battery for the alarm and stop means (13, 14, 19, 28) prevent proper engagement of the cooperating means (25, 12) in the absence of the battery. The mounting plate (2) is generally planar having an upper surface (2a) and a through-opening (20) for receiving a fixing such as a screw for fixing the mounting plate to a generally flat surface. The through-opening is elongate having an enlarged portion (22) for passage of the head of the fixing through the through-opening, a narrowed portion (21) for retention of the head and a neck portion (23) therebetween. The alarm circuit (70) also preferably includes actuation means configured to scroll through the various functions of the alarm when the actuation means is activated in a particular fashion.
Abstract:
A fire exit alert system, preferably integrated into an exit device or automatic fire exit door closer, uses sound and light to signal the location of a fire exit in darkness and smoke-obscured rooms. The alert system includes a voice signal, such as "EXIT LOCATED HERE," to signal that the location of the voice is also the location of the exit. A white noise signal generator is used to supplement the voice signal and produces a sound that is particularly localizable by the human ear. A strobe light and a laser are used to produce a visual guide to the location of the exit. The strobe light is flashed when the word "HERE" is used in the voice signal. The laser is used to produce a cone of light that points towards the fire exit alert system.
Abstract:
The invention relates to a system with base units (10) and smoke alarms (50). The base units are plug in base units (10) that have a plug (14, 16) that may plug into and be supported by a conventional mains power socket (18). Simple broadcast messages provide test, mute and panic alarm functionality.
Abstract:
An ambient condition detector incorporates an audio transducer for discrimination between alarm and non-alarm conditions. The transducer can provide occupancy information. In addition, a monitoring system can graphically present information as to the location of individuals, such as firefighters, in the region.
Abstract:
The present invention relates to the field of the detection, analysis andior determination of matter or particles suspended in fluid. In one particular form, the present invention relates to smoke detectors, which detect unwanted pyrolysis or combustion of material. In another form, the present Invention relates to srnoke detectors of the early detection type, and which may be applied to ventilation, air-conditioning or duct monitoring of a particular area. In yet another form, the present invention relates to surveillance monitoring, such as building, fire or security monitoring. in still another form, the present invention relates to environment monitoring, such as monitoring, detection and/or analysis of a fluid, zone, area and/or ambient environment, including commercial and Industrial environments.
Abstract:
A disaster prevention system using a wireless digital communication is disclosed. The object of the present invention is capable of outputting a fire alarm when a fire occurs, displaying a location of the fire, and also driving an initial fire fighting device installed at the location of the fire so that the fire can be rapidly suppressed while still in its initial stage. It is another object of the present invention to provide a disaster prevention system using wireless communication capable of providing convenience of construction and reducing construction costs. It is a further object of the present invention to provide a disaster prevention system using wireless communication capable of stably operating even if an external AC power source is not supplied thereto. It is yet another object of the present invention to provide a disaster prevention system using wireless communication capable of automatically and rapidly calling corresponding office and corresponding office and corresponding manager when a fire occurs.