1491results about "Fire alarm electric actuation" patented technology

A light-emitting diode (“LED”) based strobe may be used in automated system to provide a visual alert to occupants and/or building personnel if an emergency condition exists. A LED based strobe provides an even distribution of light having a sharp, bright pulse of light desired for emergency evacuation using lower power consumption.

The present invention leverages a co-located communication component to provide remote management of a portable construction device. This enables monitoring and/or controlling the portable construction device from a central management site. The communication component allows the central site, or another communication component, to interact with the portable construction device to retrieve information such as, for example, usage information and/or status information. The communication component also allows remote control of the devices such as, for example, remote power control and/or control of auxiliary devices that facilitate the functionality of the portable construction devices. The present invention can also incorporate global positioning systems and/or location indicating systems to facilitate in determining where the portable construction devices are located and/or when the devices are properly positioned. The systems themselves can be distributed to form a communication network with bi-directional communication capabilities.

Systems, methods, apparatus and devices are described for monitoring a property of an object or an individual, using a conformal sensor device that substantially conforms to contours of a portion of a surface of the object or the individual. The measurement includes data indicative of a property of a temperature of the portion of the surface and the degree of the conformal contact. An analysis engine is used to analyze the data and to generate at least one parameter indicative of the property of the temperature. Based on a comparison of the at least one parameter to a preset threshold, at least one alert can be issued and/or a command can be transmitted to regulate an environmental condition. The at least one alert can be indicative of a potential risk of harm to the object or individual.

Described are a method and a sensor aware network for dynamic processing of sensor data. Network context data are inserted into data packets from sensors or local sensor networks coupled to the sensor aware network. Sensor aware nodes in the sensor aware network can read the context data and can respond by performing specific network actions. The sensor data and network context data are provided to one or more application nodes. The sensor data and network context data can be stored in a database and later searched according to the network context data. Advantageously, sensor data flows can be treated differently by the sensor aware network, the application and the user, depending on the type of sensor data and the actual data values. Thus critical responses to certain sensor data flows can be implemented more efficiently than otherwise possible using conventional network configurations.

A sensor unit comprising a heat resistant shell, the shell having a plurality of viewing windows spaced around the shell exterior to define a 360° view around the unit, each viewing window being optically coupled to an infrared pyroelectric sensor and an infrared thermopile sensor, the interior of the shell defining a chamber containing at least two different smoke detectors, the shell having ventilation holes communicating with the chamber and temperature sensors mounted on the unit, the shell housing at least one printed circuit board coupled to the sensors and detectors and supporting a computer and radio transmitter, and a rechargeable power source powering the printed circuit board.

A detector includes a smoke detecting section that includes a light-receiving unit at a position at which the light-receiving unit does not directly receive light emitted by a light-emitting unit in a chamber in which a labyrinth for preventing light from directly entering from the outside and an insect net covering the rim of the labyrinth are provided, the light-receiving unit receiving light scattered by smoke flowing into the chamber. An opening hole is formed open in the surface of the cover receiving hot air current, of the detector. In the cover behind the opening hole, an electrochemical gas sensor is placed to bring gas generated by a fire through the opening hole into contact with an electrolyte solution to detect the gas by an electrode.

The invention disclosed here is a display system for managing power and security for a plurality of hand-held electronic devices sold to consumers in a retail location. The display includes features that allow power to be supplied to individual devices and security sensors without continuous hard wiring or multi-conductor retractor cables. The display also allows for individual security alarms to be triggered when a theft occurs. Security alarm conditions are preferably triggered via wireless signals.

A refrigerator capable of transmitting and receiving information over a network and having an automatic food ordering function and a method for operating the same, wherein the residual amounts of food articles stored in containers of the refrigerator are measured through sensors installed in the containers and then displayed on a screen of a display unit, thereby enabling a user to easily recognize the residual amounts of the food articles stored in the refrigerator without opening the door of the refrigerator. The measured residual amounts of the food articles are compared with minimum proper amounts of the food articles preset by the user, respectively. In the case where the measured residual amount of a specific one of the food articles is smaller than the minimum proper amount of the specific food article, the specific food article is automatically ordered and delivered.

A multi-sensor type sensor has sensor processors for generating detection data of plural types based on detection signals from a plurality of sensor portions, and a mode switching portion for switching a mode which indicates type of data to be sent to a receiver in response to a mode switching instruction issued from the receiver, and sending selectively the data of the type which corresponds to a current switching mode in response to a data request instruction issued from the receiver. The receiver includes a mode switching indicating portion for switching the mode by transmitting the mode switching instruction which selects type of response data to the fire sensors, and a fire judging portion for judging the fire by receiving the response data from the fire sensors in response to transmission of the data request instruction.

The invention discloses a building fire early warning and fire situation assessment system based on the internet of things and a method thereof. Environmental information and electrical information closely related to occurrence of fire in the building are acquired through the building internet of things, feature extraction and data fusion are performed on the acquired information and fire early warning is performed on the building. The building information is acquired by using the building internet of things system, the information from multiple sensors is integrated, data analysis is performed by using the data fusion method and accurate and rapid early warning is performed on the fire situation of the building so that interference signals can be effectively filtered through weight calculation of multiple types of information, the uncertainty and the limitation of the single sensor can be overcome, and the fire early warning and forecasting accuracy of the building can be enhanced andthe fire situation can be effectively assessed.

Apparatus for routine monitoring and automatic reporting of electrical power and gas utility usage also provides means for detecting and reporting to the relevant utility companies, fire department, and other emergency responders the development of local hazards on premises at which one or more utility usage meters are installed, including the occurrence of a fire, a gas leak, or any other circumstances such as medical emergencies that demand fast response. Such reporting can include automatic reporting of both zero or excess electrical current draw or zero or excess gas usage. The system is clock driven, fully programmable, and expandable to such other types of sensors as would detect and report on such circumstances as the presence of noxious materials as in a chem/bio attack. A permanent record of all reported events is made.

The invention belongs to the forest security protection technical field and discloses a forest fire alarm terminal and system. The forest fire alarm terminal includes a temperature and humidity sensor, a smoke sensor, an NB-IoT transmitting module, a control module, a power source and a support; the temperature and humidity sensor is used for detecting the temperature and humidity of a surrounding environment; the smoke sensor is used for detecting the smoke concentration of the surrounding environment; the NB-IoT transmitting module is used for transmitting fire alarm warning information; and the control module is connected with the temperature and humidity sensor, the smoke sensor, the fire alarm transmitting module and the power source and is used for controlling the NB-IoT transmitting module to transmit the fire alarm warning information when the temperature, humidity or smoke concentration of the surrounding environment exceeds a preset temperature alarm threshold value, a preset humidity threshold value and a preset smoke concentration threshold value. With the forest fire alarm terminal and system of the invention adopted, the accuracy, reliability, timeliness, working efficiency and alarm effect of forest fire monitoring and alarm can be improved.

An automatic fire containment system is disclosed, together with certain components which may be used therewith. An embodiment of the system attempts to provide fire suppressant to regions surrounding a fire zone, thus containing the fire within limited area, but not flooding a larger area than necessary to contain the fire. Sprinklers which may be selectively automatically activated electrically, optionally in addition to common heat triggering, are also provided. Sensors may be embedded in the sprinklers. Further provided are sprinkler capable of reporting activation thereof via electrical state change. Further provided are devices to reduce installation costs and increase the resolution of firefighting and/or fire containment systems by providing wireless communications between network nodes such as flow switches, valve status switch, and individual sensors, sprinkler, and other ports, and a control panel/controller.

The invention discloses a forest fire pre-warning method and system based on deep learning and belongs to the field of firefighting safety. The method comprises: S1, allowing an unmanned aerial vehicle to sense, in real time, temperature and humidity information of a driving area, taking a forest image of the driving area, transmitting the forest image to a ground station; synchronously transmitting locational information to the ground station; S2, judging fire pre-warning according to the temperature and humidity information, and transmitting a fire pre-warning signal to the ground station; S3, allowing the ground station to receive the fire pre-warning signal, and using a deep learning algorithm to process the forest image to obtain whether a fire is about to occur or whether fire results are present; S4, transmitting fire information to a forest management center. The temperature and humidity information is sensed and subjected to comparison; visual judgment is made on chances for afire to occur; if chances for the fire to occur are great, the forest image is processed via the deep learning algorithm; fire pre-occurrence and post-occurrence conditions can be precisely recognized; it is convenient for relevant personnel to accurately acquire fire conditions in the first place.

The invention discloses a remote fire monitoring electric meter system based on Internet of Things. The remote fire monitoring electric meter system comprises electric meter detectors, an Internet of Things monitoring detectors and a monitoring center platform, wherein the electric meter detectors are used for detecting residual current, wire through current and temperature data in a circuit in real time; the Internet of Things monitoring detectors are used for analyzing and processing data sent by the electric meter detectors, judging whether phenomena that the electricity is leaked, the circuit is overloaded and the temperature of electric devices is abnormal occur in the circuit or not, and sending the abnormal phenomena to the monitoring center platform through the Internet of Things; the monitoring center platform is used for comprehensively managing the abnormal data sent by the Internet of Things monitoring detectors, alarming through a central alarming platform when the circuit is abnormal, accurately displaying positions of faults, automatically informing relevant responsible personnel to repair the faults and eliminate hidden danger through calls or short messages. The remote fire monitoring electric meter system can be simultaneously linked with a fire protection monitoring center, so that the fire protection monitoring and early-warning capability can be improved; the remote monitoring is achieved; the fire protection force can be remotely deployed; new generation of information network communication is accelerated and promoted; the electricity safety innovative service mode is promoted.

The present invention provides a liquid crystal display device that achieves increase in operating speed of a drive circuit, reduction in load of signal source, low power consumption, and improvement in reliability of electric conduction between a liquid crystal display section and a liquid crystal driver. The liquid crystal display device includes a liquid crystal display section 44, a source driver 30 having an input latch circuit 48 and circuits 33 to 37, and 39 each of which samples gradation displaying data signal R,G, or B outputted from a control circuit 45 and holds the signal in output terminals thereof for a predetermined period. The circuits 33 to 37, and 39 are each formed of a p-Si thin film on a glass substrate 43 on which the liquid crystal display section 44 is provided. Moreover, the input latch circuit 48 is formed inside a logic circuit 41 formed on a monocrystal silicon substrate.

Systems and methods that provide improved detection of series fault and other localized unsafe heating conditions are described. The systems and methods provide an increased range of response possibilities upon detection of such conditions. Multiple temperature sensors are located in close proximity with the location of potential over-heating events, and differential temperature sensing is used to detect over-heating events. Electronic sensors in accordance with implementations of the present invention detect overheating conditions at lower temperatures and more quickly because of the close proximity of the sensors to locations of potential overheating and because of the differential temperature sensing, thereby improving the safety of electrical wiring devices and fixtures.

The invention discloses a forest fire prevention positioning prewarning monitoring system. The system mainly comprises a plurality of monitoring nodes arranged in a forest, a positioning monitoring forwarding transmission unit and a monitoring center, wherein the monitoring node is used for monitoring the temperature and the smoke concentration in the forest, judging the temperature and the smoke concentration are in the specified range by the logical operation, and transmitting the alarm value out of the range to the adjacent monitoring node or the positioning monitoring forwarding transmission unit; the positioning monitoring forwarding transmission unit receives the alarm value transmitted by the monitoring node and forwarding the positioning physical information of the positioning monitoring forwarding transmission unit and the alarm value to the monitoring center; and the monitoring center receives and stores data transmitted by the positioning monitoring forwarding transmission unit, and providing the alarm and positioning information service. The system can give a prewarnning for the forest fire to a large extent by monitoring the temperature of the forest and has the advantages of a large number of monitoring nodes which are distributed in a starlike form, and good prewarning effect.

An automatic inspection system includes intelligent sensor monitors. A sensor monitor receives input from at least one sensor. The sensor monitor conserves power and communications link bandwidth by transmitting data to an aggregator or server only when relevant to rules of the inspection system or when prompted by the inspection system for data. The sensor monitor also provides an alarm when the sensed data indicates an alarm condition, and the alarm provided is indicative of the alarm condition.

The invention discloses an electrical fire monitoring and early-warning method based on anintegration algorithm and a device, which comprises steps: S1 residual current of an electrical loop is detected; S2 the residual current is integrated for time to obtain a residual current integral parameter; S3 the voltage and the load current of the electrical loop are obtained; S4 electrical fire hidden trouble situations of the electrical loop are monitored and early-warmed according to integral parameters of various time periods; S5 the electrical fire hidden trouble situations of the electrical loop are alarmed and controlled according to the detection results of the residual current, the voltage and the load current; S6 the temperature on presupposed positions in the electrical loop is detected; and S7 an overtemperature integral parameter is obtained when the temperature is bigger than a setting threshold. The electrical fire monitoring and early-warning method based on the anintegration algorithm and the device are beneficial to check in hadden troubles in time in early stage by monitoring the residual current integral parameter, the redidual current, the voltage, the load current, the temperature and the overtemperature integral parameter and particularly monitoring the residual current integral parameter and the overtemperature integral parameter, and prevent the problem that electrical fire hidden troubles are not found in time.

The invention relates to an intelligent alarming, evacuating and fire extinguishing system. The intelligent alarming, evacuating and fire extinguishing system comprises an intelligent detecting system, a central processing unit, a data querying module, a firefighting equipment control module and an intelligent evacuating module. The intelligent detecting system comprises camera shooting detecting equipment and inducting detecting equipment. The central processing unit comprises a database and a data analyzing module. The firefighting equipment control module controls firefighting equipment, and the firefighting equipment comprises fire extinguishing equipment, smoke discharging equipment and isolating equipment. The intelligent evacuating module conducts evacuating of personnel in a fire scene through control over a luminous direction board and a video/audio indicating module. The data querying module is connected with the central processing unit and used for analyzing the causes of a fire and querying related data information later.

The invention discloses a building locating system with an emergency evacuation function. The system comprises a server, a remote control terminal, and a plurality of infrared video cameras arranged on the interior wall. The server comprises a signal receiving module, a face recognition module, a storage module, a control module, and a wireless communication module. A plurality of temperature sensors and a plurality of smoke sensors are arranged on the interior wall. The system can effectively guide indoor personnel to evacuate and escape through the best route in the case of fire, avoid confusion, and effectively improve the escape probability of people in the case of fire.

A smart light-emitting-diode (LED) bulb includes apparatus enabling the bulb to be turned ON, OFF, or dimmed without the use of a wall switch. Such apparatus may include circuitry responsive to rotating the LED portion of the bulb, circuitry responsive to touching or tapping on the bulb, or a Bluetooth or WiFi interconnection enabling the bulb to be controlled using a smartphone or other device executing a bulb-control application. Other apparatus may include a microphone enabling the bulb to be controlled with a voice, sound or music. In other embodiments, apparatus enabling the bulb to be turned ON, OFF, or dimmed may include a power line communication (PLC) interface enabling the bulb or bulbs to be controlled via the Internet. A camera or image sensor may be provided enabling the bulb to be gesture-controlled. A system may include a plurality of smart LED light bulbs.

The invention discloses an electrical fire early warning system based on the internet of things and an electrical fire early warning method thereof. The system comprises multiple smart sockets which are matched with electrical equipment, multiple environment modules, internet of things nodes, a cloud server and a smart terminal. The temperature of the sockets is detected by the temperature sensorsin the sockets and the temperature of the environment is detected by the environment modules. The internet of things nodes analyze and store the received temperature signals and can transmit alarm information to the smart terminal when judging that the hidden trouble of electrical fire exists and disconnect the smart sockets at the same time. The temperature difference between the temperature ofthe smart sockets and the temperature of the environment, the historical data temperature and the temperature of other adjacent sockets is analyzed and compared through the internet of things nodes tojudge the hidden trouble of electrical fire, and the alarm signals are transmitted to the smart terminal through the cloud server so that the accuracy of fire early warning can be enhanced.

The invention relates to an arc fault detection device which comprises a power module, a signal acquisition processing unit, a central processing arithmetic unit and a control output unit capable of controlling power connection and disconnection of a load. The central processing arithmetic unit identifies arcs through a load arc feature library, a load arc type analysis module and a load arc judgment module, and outputs a control signal to the control output unit to control the connection and disconnection of a load circuit. By means of the arc fault detection device, the problems that an arc detection device in the prior art cannot distinguish load characteristics in a loop and cannot sufficiently identify the arcs in the loop are effectively avoided. The arc fault detection device and a detection method of the arc fault detection device can be adjusted automatically according to the characteristics of the arcs and can sufficiently identify the arcs.

The invention relates to a method and device for flexibly identifying residual current-type electrical fire on line. The method comprises the following steps: arranging a residual current mutual inductor in a power transmission and supply circuit of a low-voltage power distribution system; obtaining an instantaneous value irz of lumped residual current in the circuit as well as waveform which areacquired by the mutual inductor through a power supply branch residual current and other signal detection unit; and according to the characteristics such as abrupt change, discontinuity and nonlinearity of a spot-heat agglomeration residual current instantaneous value ird, separating and extracting ird from irz by adopting a modern information processing technology, and calculating an effective value Ird of ird so as to identify whether potential electrical fire danger exists according to the size of Ird. The on-line identification device consists of three parts such as a residual current signal processing unit, the power supply branch residual current and other signal detection unit and an output execution unit. By adopting the residual current-type flexible on-line electrical fire identification method and device, the features of the potential electrical fire danger caused by electric arc grounding faults can be accurately extracted, normal residual current and abnormal residual current can be correctly identified, and alarm failure and false alarm can be avoided.

The invention discloses a fire-fighting Internet of Things remote monitoring system based on a cloud platform. The system comprises an Internet of Things architecture formed by a device sensing layer,a data processing layer, and a system application layer, and further comprises a cloud platform. The device sensing layer performs real-time fire monitoring on each monitored area by a front-end things-sensing device, and obtains fire detection data in real time. The data processing layer transmits the data to the cloud platform through the network, uses the method of weighting fuzzy data fusionto fuse the fire monitoring data detected by the front-end things-sensing device, and classifies, stores, and reports monitoring signals. The system application layer comprises a fire-fighting networked remote monitoring center and a fire alarm information terminal, and uses a combination of a PC terminal and an APP mobile terminal to present monitoring system information. The fire-fighting Internet of Things remote monitoring system based on the cloud platform reduces the energy consumption of data fusion nodes, has better data real-time performance, and realizes real-time automatic update and access of the data of the upper layer service application through a data service support interface.

A fire containment and monitoring system includes a control system that communicates with a fire protection system and an array of alarms, smoke detectors, heat detectors, ventilation dampers, fire dampers, fire doors, and manual call points. The system has particular usefulness for kitchens onboard watercraft, especially large ships, where fire containment is critical to the survivability of the vessel, passengers, crew, and cargo. The control system communicates with the alarms, smoke detectors, heat detectors, ventilation dampers, fire dampers, fire doors, manual call points, and fire protection system, and it initiates a comprehensive list of actions if a smoke detector, a heat detector, or a manual call point is triggered within the monitoring portion of the system.

The invention discloses a multi-physical fused fire monitoring system and method thereof for predicting fire probability of occurrence. The monitoring system comprises a point type smoke sensing detector, a point type temperature sensing detector, a line type beam smoke sensing detector, an air-breathing smoke sensing fire detector, a cable line type temperature sensing detector, a cable multi-point type temperature detector, an in-place module, a first station layer switch and a cable fire monitoring early-warning system server. The method comprises the following steps: step one, orderly performing initialization, denoising and normalization on sensor data; step two, initializing a feature layer, selecting a random input weight beta and an output target T to form an input matrix H; step three, processing the feature layer data in batch, performing weight iteration after the initialization; step four, making the final judgment through an algorithm; and step five, judging that the fireoccurs and giving an alarm if a fusion result is greater than a set threshold, or repeating the steps 1-4. Through the system and method disclosed by the invention, the false alarm and the failed alarm of the fire can be effectively reduced, and the accuracy of the fire prediction can be greatly improved.

The invention discloses an in-building safety monitoring system based on the BIM technology. The system comprises a data acquisition unit, a BIM integrated data memory, a BIM operation controller, a safety supervision terminal and an alarm module; the data acquisition unit comprises a smoke/fog sensor and a temperature sensor, and is used to detect ambient smoke/fog concentration and temperature information in real time and transmit the ambient smoke/fog concentration and the temperature information to the BIM operation controller through wireless communication; the BIM integrated data memory is used to store a three-dimensional model of a building; the BIM operation controller is used to receive and analyze the smoke/fog concentration and the temperature information, and send fire information to the safety supervision terminal and the alarm module; the safety supervision terminal is used to receive the fire information and show the fire information to work personnel; and the alarm module is used to broadcast the fire information and evacuation information to personnel in the building. A detailed three-dimensional position of the fire danger can be timely and accurately obtained, the scope of danger notification is expanded, and the system is in favor of improving danger processing and personnel evacuation efficiency.