244 results about "Alarm sensor" patented technology

The present invention extends to methods, systems, and computer program products for wireless takeover of wired alarm system components. Embodiments of the invention can be used to bridge hardwired alarm zones for use with a wireless alarm controller. Wired sensors are wired to a takeover module that converts communication from the wired sensors into wireless communication that can be compatibly processed at an alarm controller that accepts wireless signals. Power and ground connections from an existing wired alarm controller can be used with the takeover module to facilitate wireless takeover of wired alarm sensors.

A security system device including a single housing including at least a primary alarm sensor, an alarm verification unit, and processing circuitry. The primary alarm sensor is adapted to monitor a primary protected area and to generate a primary alarm signal when the primary alarm sensor is triggered. The alarm verification unit selectively provides verification information (e.g. video and/or audio signals) from at least part of the primary protected area to a central station monitor. The processing circuitry is adapted to generate an alarm enable signal when the primary alarm signal is generated. On the occurrence of an alarm enable signal, the processing circuitry generates an alarm detected signal and causes the alarm detected signal to be transmitted to a central station monitor, enables operation of the alarm verification unit, and enables transmission of the verification information from the protected area to the central station monitor. A secondary alarm sensor may also be included within the housing, in which case the alarm enable signal is generated only on the triggering of both the primary and secondary alarm sensors. The primary alarm sensor may be adapted to cause the sensitivity of the secondary alarm sensor to be modified on the triggering of the primary alarm sensor.

An air flow monitoring and control system with reduced false alarms includes an alarm sensor for monitoring air flow in a fume hood or the like, set to provide a warning if air flow drops below a predetermined amount. A local controller monitors the alarm, and disables it when the hood is set to reduced air flow, whether by a local timer or by command of a central control system. Optionally, the controller itself can operate a variable speed drive to reduce air flow on a timed basis, and the controller can communicate with facility management through a dialer or the Internet, or can interface with a central control for the facility through a facility bus.

A turtle alerting system and method utilizes an acoustic signal that may be provided in a first, low frequency range, a second, mid-frequency range, or a third, high frequency range. One or more of those acoustic signals may be accompanied and/or modulated by either an ultrasonic signal or a MHz signal, so as to provide a carrier for the acoustic signal. Further, a beam of light may be used as another type of alerting sensor. Lastly, a sonar may be used to steer the system in a direction in which turtles may be located.

A pseudo-noise-modulated spread spectrum is irradiated undirectedly-or, encoded by different modulation, into mutually displaced spatial sectors-and the energy (20) received after reflection at a potential target (13) is cross-correlated, using the pseudo-noise code which is predetermined at the transmission end, in order to provide a spherical monitoring effect which is continuous but which cannot be located in respect of its origin, to provide a warning in particular for marine craft, land vehicles and aircraft against an attacking guided missile as the target (13) to be repelled, and in order to be able to transfer to a target tracker (12) distance and speed information obtained from the correlation product, with the alarm signal, if the alarm sensor (11) is not itself also used as the tracking sensor.

The invention discloses an intelligent window opener. The intelligent window opener comprises a window opener body, an intelligent window opener main machine, a wind and rain sensor, a sensor for detecting human bodies inside a window, a sensor for detecting the remote human bodies outside the window, a sensor for detecting the short-distance human bodies outside the window, a fire alarm sensor, a radio frequency remote controller and a UPS. The intelligent window opener has the advantages that 1) the window can be controlled to be opened and closed by adopting the remote controller or keys of the intelligent window opener main machine; 2) when a person outside the window gets close to the window, the window can be automatically closed, and therefore the anti-theft function can be achieved; 3) when a person inside the window gets close to the window, the window can be automatically closed, and therefore the phenomenon that a child accidentally falls off from a building can be prevented; 4) the wind and rain detection function is achieved, and therefore the window can be automatically closed during strong-wind or rainy days; and 5) the fire detection function is achieved, the controller adopts the UPS for power supply so that the normal work of the window opener can be ensured even if the electric supply is cut off due to fire, and when the fire occurs indoor, the window can be automatically opened so that firefighters can conveniently carry out fire rescue.

An alarm system having the capability to self-adjust or self-calibrate itself is disclosed. The system includes an alarm controller and at least one sensor that generates a signal that corresponds to the magnitude of a detected event. The signal evaluator is part of the alarm controller and receives the magnitude signal from the sensor. The signal evaluator compares the magnitude signal to a user-defined or preset alarm sensor sensitivity threshold and generates an alarm signal if the magnitude signal exceeds the alarm signal sensitivity threshold. If repeated alarm signals are generated, an alarm threshold adjuster will adjust the sensor sensitivity threshold to a point where repeated magnitude signals will be ignored. The system will reset itself to the original user-defined or preset sensor sensitivity threshold levels after a predetermined time of no alarm signal generation. The alarm signals generated will activate an alarm annunciator, which generates an alarm.

The invention relates to an Internet of Things sensor gateway data collecting and analyzing platform. A hardware part is composed of a network, a camera in an R232 series port transmitting mode or a 485 series port transmitting mode, sensors such as an alarm sensor, a temperature and humidity sensor and a smoke sensor, an RFID device, a gateway server, a wireless sensor and a client side PC. An Internet of Things sensor gateway data collecting and analyzing system is installed in a hard disk of the gateway server of the hardware part, and a client side software data presenting system is installed in a hard disk of the client side PC. The client side software data presenting system comprises a data presenting module, a data application module, a data management module and a data storage module. The limitation of a reader and a non-standard protocol on developing, maintaining and expanding is removed through the data collecting and analyzing platform, Internet of Things RFID terminal equipment of different factories, types, communication modes, communication protocols and data formats is supported, and a table data calling platform based on the SQL standard is provided for application software.

A merchandize item protection apparatus has a housing, with an alarm transducer received in the housing. A device for securing the housing to a merchandize item or merchandize to be protected is provided because the housing has a passthrough opening in order to hang a protected merchandize item or merchandize package on a merchandize presenter. The housing is constituted by two housing elements that are detachably joined to one another by the attachment device. A gap is formed between the housing elements, and in which a merchandize package can be clamped in place between the housing elements.

Disclosed herein is a flash tank of a two-stage compression heat pump system that can perform cooling and heating with a separate type intercooler and a high-stage compressor protecting device. The system comprises a fluid-level detecting sensor for detecting the fluid-level of the refrigerant, an alarm sensor for notifying the saturated state of the refrigerant filled in the flash tank, an evaporator pressure sensor for measuring and notifying the pressure of the refrigerant flowing into the evaporator, a condenser pressure sensor for measuring and notifying the pressure of the refrigerant flowing out of the condenser, a flash tank fluid-level controller for receiving signals from the above sensors and controlling intermediate pressure and the fluid-level of the flash tank, and a bypass valve controller for controlling a bypass valve that receives signals from the alarm sensor and allowing a refrigerant to directly flow from the low-stage compressor to the high-stage compressor.

The invention discloses an aviation audio player and an aviation alarm system. The aviation audio player comprises a CPU (Central Processing Unit) module, an audio decoding module, a power supply module, an audio pre-recording module, an audio storage module and an alarm detection sensor module, wherein the audio pre-recording module and the audio storage module are used for inputting audio files into the audio decoding module respectively; the alarm detection sensor module is connected with the CPU module, and is used for detecting flight state parameters through an alarm sensor and inputting the flight state parameters into the CPU module for analysis; the CPU module is used for outputting a corresponding audio file reading instruction to the audio decoding module according to an analysis result of the flight state parameters; and the audio decoding module is used for reading the audio files according to the audio file reading instruction sent by the CPU module, and decoding the audio files. Through the aviation audio player, an audio playing function is realized, the aim of making alarms can be fulfilled without any peripheral complex system, direct and rapid multi-channel decoding control is realized, and the delay time is shortened.

An alarm system sensor (10) monitoring movement of an object (D) and placing the system into alarm when the object moves more than a predetermined distance from a predetermined position. First and second reed switches (16, 18) are located in a predetermined orientation relative to each other and in tandem to the object. Bias magnets (24, 26) are used with the reed switches. A magnet (20) is movable with the object and produces a force simultaneously sensed by both reed switches. This force maintains both reed switches in a state keeping the alarm system in a non-alarm condition so long as the object substantially remains in its predetermined position. The object, when it moves, moves toward one of the reed switches and away from the other reed switch. Movement of the object more than the predetermined distance results in the force sensed by one of the reed switches increasing and the force sensed by the other reed switch decreasing. Either change in sensed force activates the appropriate reed switch causing the alarm system to go into alarm.

The invention provides an intelligent and secure community management and control system based on a cloud platform, and belongs to the field of electronic technology. The problems of single function,low integration level and incapability of completely managing and controlling community security and protection in the prior art are solved. The management and control system comprises an informationsensing platform, a network platform, a data processing platform and a public security application platform, the information sensing platform comprises a video collecting device, an alarm sensor, an AP collecting device and an RFID device; the network platform comprises a video private network, a public security information network, a 3G/ 4G/5G wireless network and the Internet; the data processing platform comprises a video image information data processing module, a public security service information data processing module, an information integrated processing module and a GPS spatial information processing module; and the public security application platform comprises a video investigation application unit, a vehicle application unit, a face application unit, an AP application unit, anRFID application unit, and a data comprehensive analysis application unit. Through multi-functional integration, the management and control system can realize the comprehensive management and controlof the community security and protection management, and has good practicability.

The invention discloses a vehicle-mounted anti-theft alarm system of an automobile. The vehicle-mounted anti-theft alarm system comprises a central controller, and the central controller is connected with a wireless alarm sensor, a camera module, an alarm module and a mobile terminal. According to the vehicle-mounted anti-theft alarm system, the multiple sensors are introduced, data of the sensors is processed through information fusion of the sensors, the reliability is improved, mistaken alarms and false alarms are prevented, and alarm reliability is improved; and the intelligent management alarm system integrates network communication, satellite positioning and real-time monitoring, the automobile can be monitored and tracked in real time, an owner conveniently locates and monitors the automobile, man-vehicle real-time communication is achieved, the real sense of anti-theft function is achieved, and various vehicle stealing behaviors of lawbreakers are effectively fought.