151results about "Fire alarms" patented technology

The embodiment of the present application provides a kind of fire automatic alarm method and system, it is applied to the fire automatic alarm system of nuclear power plant, the method comprises: the alarm module obtains fire information;The fire-fighting linkage module collects the equipment parameter of fire-fighting equipment;The control module receives the fire information and the equipment parameter, according to the fire information and the equipment parameter, first control instruction is sent to the fire-fighting linkage module, and the first control instruction is used to control the fire-fighting equipment;After the fire-fighting equipment executes the first control instruction, the fire-fighting linkage module collects the state information of the fire-fighting equipment;The control module receives the state information, and the state information is sent to the DCS module.By control module, the flexibility of system can be improved to the fire automatic alarm system.

To provide a fire alarm system that can improve the work efficiency when installing district name forms. [Solution] The fire alarm receiver 100 is a fire alarm receiver equipped with a display unit (area display unit 15) that displays the location of an abnormality. The display unit (area display unit 15) comprises a main body 20, an area name sheet 90 on which the area name is written and placed on the surface of the main body 20, and an area window cover 30 attached to the main body so as to overlap the area name sheet 90 and having light-transmitting properties in at least the portion that overlaps the area name. Multiple area window covers 30 are provided, and each of the multiple area window covers 30 has a portion that overlaps the area name and a portion that does not overlap the area name, and at least the portion that does not overlap the area name has a different color depending on whether the overlapping area name indicates the location of a fire or whether the overlapping area name indicates the location of an abnormality other than a fire.

This utility model discloses a fire alarm device, relating to the field of fire alarm devices. It includes a base and a housing. A damping rod is fixedly connected inside the base, and a wedge block is fixedly connected to the end of the damping rod away from the base. A switch button is slidably connected to the housing. A limit post is fixedly connected to the side of the switch button, and a moving post is fixedly connected to the end of the limit post away from the switch button. A sliding plate is slidably connected to the moving post, and a fixed plate is fixedly connected to the end of the moving post. The wedge block is positioned between the sliding plate and the fixed plate via the fixed plate. Through the cooperation of the switch button, the moving post, the sliding plate, the fixed plate, the groove, and the wedge block, the housing and the base can be clamped together for installation without needing to check for alignment. Installation of the housing and the mounting groove can be achieved simply by adjusting the direction of the housing according to the position of the mounting groove, thereby improving the quick installation and disassembly of the fire alarm.

Example implementations include a method, apparatus and computer-readable medium for smoke detection using a smoke detector / fire alarm system implemented as a beam receiver and beam transmitter. In some examples, the beam receiver is configured to receive a plurality of beam pairs including a first beam pair, wherein each beam pair is received via one of a plurality of receive elements, and wherein the first beam pair is received via a first receive element and comprises a first beam and a second beam. In some examples, the beam receiver is further configured to compare a first delta between the first beam intensity and the second beam intensity at the first time instance with a second delta between the first beam intensity and the second beam intensity at the second time instance to determine whether to perform an action.

The present invention provides an operational testing device for flame detectors that can prevent damage to the lens caused by uneven temperature distribution in different locations. [Solution] An operational test device for a flame detector is provided with a light-emitting unit equipped with a lamp (31) and a lens unit having a lens (23) positioned in front of the light-emitting unit, and a main body case that houses a power supply unit and a light-emitting drive unit for the lamp, and is capable of irradiating light of a predetermined wavelength in a certain direction, wherein the lens unit (12) comprises a cylindrical lens cover (24) that holds the lens and is attached to the front of the main body case, and an annular lens retaining member (21) for fixing the lens to a predetermined part of the lens cover, and the lens is fixed by having its outer edge sandwiched between the front inner edge of the lens cover and the outer edge of the lens retaining member, and an O-ring (26) is interposed between the outer edge of the lens and the front inner edge of the lens cover.

This enables firefighting operations using appropriate fire hydrant systems to respond to fires in electric vehicles. [Solution] The electric door of the fire hydrant system 10 installed in the tunnel is equipped with an EV vehicle transmitter in addition to a transmitter for reporting fires involving EV vehicles (electric vehicles). When the EV vehicle transmitter is operated, the fire hydrant system 10's disaster prevention receiving panel 12 transmits an EV notification signal and outputs an audio message from a speaker regarding firefighting methods and precautions for EV vehicle fires. Based on the receipt of the EV notification signal, the disaster prevention receiving panel 12 notifies an external fire department of the occurrence of an EV vehicle fire. Furthermore, since it may be unclear whether the burning vehicle is an EV, the image of the burning vehicle captured by the surveillance camera is transmitted to an external EV vehicle identification server 20 so that it can be determined to be an EV and appropriate action can be taken.

Fire alarm device (1) with at least one fire alarm arrangement (2), wherein the at least one fire alarm arrangement (2) comprises at least one fire detector (3) for detecting a fire and at least one processing unit, in particular at least one image processing unit (4), wherein the at least one fire detector (3) and the at least one processing unit, in particular the at least one image processing unit (4), provide data, with a communication device (5), wherein the at least one fire alarm arrangement (2) is connectable or connected to the communication device (5) for transmitting the provided data, wherein the at least one fire alarm assembly (2) and the communication device (5) each have at least one wired bus connection (7), wherein the at least one fire alarm assembly (2) and the communication device (5) can be connected to each other via a wired bus connection (8) by means of the at least one wired bus connection (7), wherein the at least one fire alarm arrangement (2) for transmitting the data additionally has at least one wireless connection port (9), wherein the communication device (5) comprises a further wireless connection port (9), wherein the wireless connection ports (9) of the at least one fire alarm arrangement (2) and the communication device (5) are connectable or connected to each other for the transmission of data via a wireless network unit (10), where the data with a small data size are allocated to the wired bus connection (8) for transmission at low data rates, wherein the data with a large data size is assigned to the wireless network unit (10) for transmission at high data rates, wherein the fire alarm device (1) comprises at least one repeater (11), wherein the wireless transmission of the data between the wireless connection terminals (9) of the communication device (5) and the at least one fire alarm arrangement (2) is carried out indirectly via the at least one repeater (11).

We provide the system. [Solution] An analysis means for detecting emergencies from user voice and video data, A terminal device for acquiring and analyzing environmental data in real time, Information processing means for generating the optimal evacuation route based on acquired environmental data, Display means and audio guidance means for presenting the generated evacuation route to the user visually and audibly, A control system for updating evacuation routes in real time in response to environmental changes, A system that includes this.

This application discloses a fire early warning method based on multidimensional forest health status analysis, belonging to the field of forest fire prevention technology. The method includes: acquiring multidimensional observable data for each assessment unit in a target forest area; inputting the multidimensional observable data into a pre-constructed hybrid prediction model, outputting a comprehensive flammability risk index for each assessment unit within a specified future time period, and generating a visualized spatiotemporal distribution map on a GIS map; wherein the hybrid prediction model calculates the flammability probability of each tree species using a single-tree physical mechanism model, obtains a stand risk index using a spatial weighted aggregation algorithm, outputs a landscape-level probability through a landscape-level risk prediction network, and performs weighted fusion of three sources of uncertainty based on traditional empirical paths; and issuing early warning information based on the spatiotemporal distribution map. This application combines physical mechanisms with transfer learning to achieve rapid adaptation with few samples and accurate prediction at multiple scales, providing reliable decision support for forest fire prevention.

The application relates to a forest and grassland fire risk intelligent early warning method, system, device and medium. The method comprises the following steps: acquiring meteorological data and combustible moisture content and other multi-source heterogeneous data of a target area; extracting and fusing meteorological features, terrain features and vegetation features to form fire risk feature data; performing grid processing and weighted calculation on the feature data to obtain a real-time fire risk index and perform grade mapping, and combining historical data and weather forecasts to perform timing prediction to obtain a future fire risk grade; automatically identifying a high-risk area based on an evaluation result to generate an analysis report containing risk distribution and prevention measure suggestions; and matching an early warning template according to an analysis result to push precise early warning information to relevant areas and objects. The method can effectively solve the problems of insufficient data fusion, prediction lag and extensive early warning in the traditional early warning mode through multi-source data deep fusion, dynamic evaluation and intelligent analysis, and improve the active prevention capability of forest and grassland fires.

Described herein are self-test manual activation devices. A self-test manual activation device includes a switch configured to activate a fire alarm system, an actuator coupled to the switch and configured to activate the switch, and a controller configured to receive a command to test the self-test manual activation device and send a command to the actuator to activate the switch in response to receiving the command to test the self-test manual activation device.

The utility model relates to early warning equipment technical field, and disclose an emergency lighting system based on wisdom building, including prop, the circumference of prop is fixedly connected with disc, the top of disc is fixedly connected with the ring of teeth, the circumference of prop rotatably connected with the board of turning, the bottom of board of turning is fixedly connected with the round angle board, the inner wall of round angle board rotatably connected with output shaft, the circumference of output shaft is fixedly connected with gear, the top of board of turning is fixedly connected with detector, the front of board of turning is fixedly connected with photovoltaic board, the present application can carry out the detection of larger range between building, when detecting the fire, can give the signal to the detection center and carry out the early warning and open the lighting lamp simultaneously and carry out the emergency lighting.

Aspects described herein relate to a notification appliance that can receive, from a notification appliance circuit (NAC) and using the interface, a synchronization pulse signal including a command signal indicating a synchronized candela rating (or other settings), and can modify, based on the command signal, a candela rating stored at the notification appliance for operating the strobe light to be equal to the synchronized candela rating. Other aspects relate to a fire alarm control panel (FACP) that can transmit the synchronization pulse signal including a command signal indicating the synchronized candela rating (or other settings).

This invention provides a fire precursor detection system, a fire precursor detection method, and a fire precursor detection program that can detect signs of fire at an early stage. [Solution] The fire precursor detection system is a fire precursor detection system that is installed in an area to be monitored and is capable of communicating with multiple types of sensors that measure the environment of the area and detects signs of fire in the area, and is characterized by comprising: a measurement data acquisition unit that acquires measurement data for each of multiple indicators of the environment of the area acquired by multiple types of sensors; a precursor presence / absence determination unit that determines whether or not there are signs of fire in the area based on a combination of measurement data of predetermined indicators selected from the measurement data acquired by the measurement data acquisition unit; and a notification unit that notifies the area monitor that there are signs of fire in the area when the precursor presence / absence determination unit determines that there are signs of fire in the area.

This invention relates to a method and system for fire spread prediction and emergency early warning based on on-board computing, belonging to the field of remote sensing satellite technology. The system completes fire point identification, environmental parameter extraction, lightweight dynamic spread simulation, and multi-frame fire line spatiotemporal sequence compression encoding on-board, and transmits the data instantly to ground terminals via BeiDou short message service, achieving an emergency closed loop of "on-board imaging, on-board computing, on-board prediction of future trends, and on-board transmission." This overcomes the problems of existing technologies where forest fire spread prediction relies on ground station processing, resulting in poor timeliness, and the inability to receive early warning information in remote areas lacking communication links.

Devices, methods, and systems for monitoring an aerosol density level in a self-testing fire sensing device are described herein. One device includes an adjustable particle generator configured to generate aerosol, an optical scatter chamber configured to measure an aerosol density level of the aerosol, and a controller configured to compare the measured aerosol density level with a threshold aerosol density level and stop the adjustable particle generator from generating the aerosol responsive to the measured aerosol density level reaching and remaining at or above the threshold aerosol density level for a particular period of time.

To improve smoke inflow property with respect to a smoke detection chamber.SOLUTION: A sensor 1 includes a smoke detection chamber 4 and at least one of airflow control walls 8. The smoke detection chamber 4 includes inflow openings 40 from which smoke flows in. The airflow control walls 8 are arranged in the periphery of the smoke detection chamber 4. The airflow control wall 8 controls an airflow so as to reduce variations of smoke inflow property with respect to the smoke detection chamber 4 in a circumferential direction A3 of the smoke detection chamber 4.SELECTED DRAWING: Figure 5

This invention belongs to the field of smoke and fire alarm technology, specifically relating to a smoke and fire alarm processing method, system, and terminal based on IoT-based smart fire protection. This invention calculates the overall offset time to correct the real-time collected smoke and fire alarm signals based on an alarm response time sequence formed from historical smoke and fire alarm datasets. Based on a set of alarm data nodes determined in the corrected signal, a comprehensive fitting value is calculated as a reference benchmark for subsequent corrections. Therefore, through macroscopic correction of historical data and iterative optimization of recent data, dynamic and adaptive precision calibration of the alarm response time is achieved, overcoming the insufficient accuracy problem caused by using fixed offset values ​​for correction, thereby improving the accuracy of the timestamp of the starting point of the fire alarm event signal characteristics.

Devices, methods, and systems for extending a fire loop are described herein. An example device for a fire alarm system includes a first communication pathway coupled to a first plurality of fire sensing devices wired in a first loop, a second communication pathway coupled to a second plurality of fire sensing devices wired in a second loop, wherein the second loop is independent of the first loop, and a controller configured to drive the second plurality of fire sensing devices of the second loop and drive the first plurality of fire sensing devices of the first loop during a failure event occurring on the first loop.

An object is to provide an alarm apparatus capable of improving a degree of freedom in design of light shielding section. A light shielding section for inhibiting ambient light from entering a detection space 34 for detecting smoke contained in a gas is included, the light shielding section includes an inner labyrinth 36 that covers an outer edge of the detection space 34 and has a first inner inflow opening 36f, a detector body 4 disposed at a position facing the first inner inflow opening 36f, the position being separated from the first inner inflow opening 36f by a first gap 38, and an outer labyrinth 37 disposed at a position separated from the first gap 38 by a second gap 39 on an imaginary line orthogonal to a direction in which the first inner inflow opening 36f and the detector body 4 face each other, the imaginary line passing through the first gap 38, and the gas outside the light shielding section is allowed to flow into the detection space 34 through the second gap 39, the first gap 38, and the first inner inflow opening 36f in order.

The application discloses a unified probability propagation prediction method and system suitable for WUI fire, and the method comprises the following steps: constructing a unified state space and discretizing; constructing an external driving model of building layer fire propagation; constructing a building layer dynamic Bayesian network with each building as a node, parameterizing a conditional probability table of the building layer dynamic Bayesian network based on a physical driving mechanism; establishing a mapping relationship between an internal state of the building layer and an external observation category; realizing state correction and rolling prediction based on Bayesian updating; when external observation is obtained, the system state is updated based on Bayesian updating in combination with observation information, a posterior state distribution is obtained, the posterior state distribution is taken as an initial state of the next time step prediction, a rolling assimilation closed loop is formed, and finally a multi-state probability risk field of building scale evolution over time is output. The application can realize unified coupling of a landscape, a building and a flying fire, obtain state probability output over time, and can be assimilated and corrected.

We provide a compact, indicator-light-integrated transmitter. [Solution] The indicator light integrated transmitter according to the present invention comprises a push button storage section 11 for storing a push button 9, a switch storage section 13 for housing a switch 12 that is linked to the push button 9, a transmitter cover 5 which is disc-shaped and attached to the front side of the push button storage section 11 and extends outward from the push button storage section 11, and a substrate storage section 29 for housing a substrate 27 on which a light-emitting element 25 is mounted so as to be located on the outer circumference of the push button storage section 11 and on the back side of the transmitter cover 5. The substrate 27 is arranged only outside the switch storage section 13 and is housed so that its substrate surface faces the back side of the transmitter cover 5, and the light-emitting element 25 is mounted on the substrate surface. The transmitter cover 5 is translucent on the radially outer side and not translucent on the inner side, so that the light from the light-emitting element 25 reaches the transmitter cover 5 without being blocked by the push button storage section 11.

To provide a fire-related information display device capable of improving an operator's operability.SOLUTION: A fire-related information display device includes: a receiving unit that receives fire-related information from each of a plurality of terminal devices; a display unit that displays fire determination information necessary for an operator to determine whether a fire has occurred; and a control unit that makes the display unit display the fire-related information generated based on the fire-related information, in which the control unit has an illustration display function of displaying the operation contents to be performed by the operator after then as illustrations based on the fire occurrence status when displaying the fire determination information as text, and makes the display unit display the illustrations of the operation contents regarding switching or resetting operations for the fire-related information display device as the operation contents to be performed by the operator after then based on the fire detection information when the fire detection information is displayed as text, thereby achieving operability improvement functions.SELECTED DRAWING: Figure 3

The utility model relates to a kind of optical beam smoke detector, comprising: back cover, with first installation site and second installation site;Optical module, is installed at the first installation site;Key, at the second installation site;First front cover, cover in the first installation site, to at least partially shield the optical module;Second front cover, detachably installed at the second installation site, to at least partially shield the key;Control panel, electrically connected to the key;Drive assembly, electrically connected to the control panel, the drive assembly is used to adjust the position state of the optical module at the first installation site.

The present application relates to the field of fire alarm technology, and more particularly to a fire smoke concentration real-time detection and early warning method and system, comprising: in a smoke-free detection cavity environment, collecting and recording the background value of the detection light signal intensity of each direction and each wavelength of each point, and recording the time synchronization information of detection light emission and signal collection. The present application collects the motion and coagulation state parameters of smoke particles and generates characteristic parameters in the time-space dimension, combines the dynamic correction model of light scattering efficiency to perform regional dynamic correction on the scattered light signal, accurately eliminates the scattering deviation caused by particle motion and coagulation, makes the light signal data linearly correspond to the actual particle mass concentration, solves the problem that the light signal and the actual particle quantity cannot be accurately matched and the concentration detection has dynamic deviation due to the dynamic behavior of particles in the prior art, and solves the technical limitations of conventional fixed correction.

This invention relates to the field of coal mine safety monitoring and fire prevention technology, and in particular to a portable device for coal mines integrating gas sampling and fire identification functions, and its usage method. This invention integrates a multi-parameter gas sensor array and an internal temperature sensor into the device housing, along with a power supply compartment. It collects underground sample gas via a pump, first controlling the connection between the detection pipeline and the exhaust port via a gas distribution valve. Data measured by the internal temperature sensor and the multi-parameter gas sensor array is used in real time for fire identification and to determine the validity of the sampling. When the fire is identified as safe and the sampling is valid, the gas distribution valve is controlled to connect the pumping pipeline and the detection pipeline, allowing the sample gas to be collected via a gas sampling bag. The sample can then be brought back to the surface for high-precision chromatographic analysis, achieving synergy between real-time underground monitoring and surface verification. This improves the accuracy, reliability, practicality, and portability of underground fire detection.

To monitor a heap of a material in a recycling station to reduce the number of false alarms.SOLUTION: A device comprises a circuit (120) configured to perform a region of interest function (132), a reference spatial characteristic setting function (134), a region of interest adjustment function (136), and a temperature monitoring function (138). The region of interest function is configured to define a region of interest covering a heap of a material in a thermal video stream of a scene captured by a thermal video camera. The reference spatial characteristic setting function is configured to determine a spatial characteristic of the heap of the material from pixels within a region of interest of a video frame of the thermal video stream, and to set the determined spatial characteristic as a reference spatial characteristic. The temperature monitoring function is configured to monitor temperature measure in the video stream within the region of interest over time, and generate an alarm event when the temperature measure exceeds a predetermined threshold.SELECTED DRAWING: Figure 1

To provide a fire alarm system that can improve convenience for a user in monitoring or operating a fire alarm facility.SOLUTION: In a fire alarm system comprising a fire alarm facility equipped with a display unit and an operation unit, and a portable terminal that communicates with the fire alarm facility, the portable terminal comprises: a camera; and a display device that displays images of the display unit and the operation unit of the fire alarm facility, taken with the camera, along with additional information relating to one or both of the display unit and the operation unit.SELECTED DRAWING: Figure 1

The objective is to obtain an indicator light with a circular light-emitting display section that can improve visibility without increasing the number or brightness of light sources. [Solution] The indicator light 37 according to the present invention is an indicator light 1 that is attached to a mounting surface to indicate the location of disaster prevention equipment, and has a main body portion 38 that houses a substrate 17 on which a light-emitting element 15 is mounted, and a light-emitting display portion 11 that transmits light emitted by the light-emitting element 15, the light-emitting display portion 11 is formed in a ring shape, and a transmitter 3 having a push button 31, a push button storage portion 33, and a transmitter body portion 35 is housed on the inner circumference side of the ring-shaped light-emitting display portion when viewed from the front, and a translucent filler material 39 is filled into the space portion 14 on the back side of the light-emitting display portion 11 in which the substrate 17 is housed, and a reflector plate 25 is attached so as to cover the transmitter mounting surface portion 21 of the transmitter storage portion 13.

To provide a display lamp-attached transmitter that enables reading characters being displayed even in a dark site, and is helpful in checking functions or operation methods of instruments.SOLUTION: In a display lamp-attached transmitter comprising: a main body case (13) incorporating a push button switch to be turned to an ON state by push operation from a front; a protection plate (21) arranged in front of the push button switch; a front panel (22) having an opening part making at least a part of the protection plate (push button) exposed; and a light source (28) disposed in the protection plate or in a rear part or a lateral part of the front panel, the protection plate and front panel are formed of a light guide material, and in a rear surface, a plurality of grooves is formed that corresponds to characters desired to display. These different formation embodiments of the plurality of grooves make an amount of light per a unit area to be emitted from the protection plate or a surface of the front panel different in a part of the character and other part thereof other than the character part, which in turn luminance unevenness occurs. By this luminance unevenness, the character is configured to be displayed.SELECTED DRAWING: Figure 2