549 results about "Smoke alarm" patented technology

The invention provides an intelligent fire-fighting fire prediction method and system, a medium and a program product, and relates to the technical field of electric digital data processing. The method comprises the following steps: firstly, acquiring real-time smoke monitoring data of a smoke alarm sensor in a target building, and once the data reaches a preset threshold value, immediately determining fire occurrence and locking a target fire source range; thirdly, calculating a fire risk value of the range by means of a fire risk assessment model trained based on multiple factors of a target building and a machine learning algorithm, and determining that a high-risk fire source point exists when the fire risk value is higher than a threshold value; then, combining meteorological data to obtain multi-dimensional environment characteristic data, and inputting the high-risk fire source point and the meteorological data into a fire spreading prediction model trained by a deep learning algorithm to obtain a fire spreading prediction condition; and finally, the situation is sent to a management end for alarming, and according to the method, rapid and accurate pre-judgment of the fire situation is achieved by means of multi-source data and an intelligent model.

The invention discloses a building outer wall fire fighting system based on an unmanned aerial vehicle and a fire extinguishing method thereof, and belongs to the technical field of fire fighting, the building outer wall fire fighting system comprises fixed fire fighting equipment and mobile fire fighting equipment, the fixed fire fighting equipment is arranged on a building body, and the mobile fire fighting equipment is in butt joint with the fixed fire fighting equipment according to fire conditions; and the mobile fire-fighting equipment and the fixed fire-fighting equipment are electrically connected with the fire-fighting control center. The fire early warning cameras and the smoke alarm are arranged on the periphery of the roof parapet wall and used for discovering a fire in the early stage; the outer wall fire-fighting vertical pipe and the fire-fighting power supply are connected with a fire-fighting system of the whole building, and the unmanned aerial vehicle obtains a water source and the power supply through an adapter on the outer wall fire-fighting vertical pipe, so that the unmanned aerial vehicle can continuously work until a building fire is successfully extinguished; the building builds a three-dimensional fire-fighting network by means of indoor and outer wall fire-fighting systems, and the internal and external fire-fighting systems cooperate with each other to accelerate fire extinguishing of the building, reduce fire hazards and guarantee personal and property safety.

The invention belongs to the technical field of fire detection, and particularly discloses a smoke sensor labyrinth optimization design and dust pollution resistance method, which comprises the following steps: detecting corresponding smoke and dust fusion particles and water vapor particles in an air detection area through a signal transmitting device; water vapor particles are screened to weaken smoke alarm triggered by mistake caused by the water vapor particles, a differential signal processing technology is adopted to distinguish and identify fusion particles, meanwhile, the fusion particles are introduced into a labyrinth measuring cavity, the concentration of smoke and dust is measured in the labyrinth measuring cavity, and the detection stability is enhanced; the width of a labyrinth channel in a labyrinth measuring cavity is automatically adjusted according to the smoke concentration to carry out space division of smoke particles and dust particles, so that the adaptability of the detector to a complex environment is improved; the smoke concentration in the labyrinth measuring cavity is subjected to fire early warning judgment, the cleaning device additionally arranged in the labyrinth measuring cavity is started according to the smoke concentration and the dust concentration for cleaning treatment, and the detection continuity is improved.

A one-time activation smoke alarm includes a smoke alarm body and a wall-hanging base. The smoke alarm body includes a case and a sliding sheet. An engaging recessed slot and a supporting protrusion platform are respectively formed on two sides of a bottom of the case. The sliding sheet is slidably disposed on the supporting protrusion platform, and a front end of the sliding sheet has a pressed protrusion portion that extends into the engaging recessed slot. An engaging protrusion platform is formed on the wall-hanging base, and at least one abutting protrusion portion protrudes outward from a periphery of the engaging protrusion platform. The engaging protrusion platform and the engaging recessed slot are capable of being engaged and fixed together such that the abutting protrusion portion abuts the pressed protrusion portion and the smoke alarm body activates a detection function.

The artificial intelligent fireproof smoke exhaust window comprises a ventilation window body, a window sash is arranged on the right side of the ventilation window body, fireproof sound insulation glass is installed in the window sash, the bottom end of the window sash is hinged to the bottom end of the right side of the ventilation window body, and a driving assembly is arranged between the window sash and the ventilation window body; a smoke exhaust assembly used for exhausting smoke outwards is arranged between the upper end of the ventilation window and the window sash. The driving assembly and the smoke exhaust assembly are arranged between the ventilation window and the window sash, the smoke alarm, the temperature sensor and the equipment box are arranged on the right side of the ventilation window, the equipment box can receive signals transmitted by the smoke alarm and control the electric telescopic rod to be started, and the electric telescopic rod drives the window sash to be opened; and meanwhile, in the opening process of the window sash, a T-shaped groove, a T-shaped block and a guide block can drive a movable plate to be overturned and opened, so that a fan corresponds to an exhaust channel, the fan exhausts smoke, the smoke exhaust effect is improved, and safety accidents are avoided.

The invention relates to the technical field of image recognition, in particular to a fire behavior recognition method and system based on video monitoring. The technical problem that the early warning reliability of a video monitoring system on fire smoke is insufficient is solved. The method comprises the following steps: acquiring a monitoring video stream of a monitoring area and time sequence data acquired by a sensor in the monitoring area; determining an evaluation value of the to-be-detected area based on the image feature and the morphological change of the to-be-detected area; determining a confidence factor based on the form change trend of the to-be-detected region and the change trend of the time series data; determining a smoke authenticity value based on the evaluation value and the confidence factor; and adjusting an alarm threshold value of the smoke alarm based on the smoke authenticity value. The method is used for fire smoke early warning and monitoring scenes.

The invention relates to the technical field of smoke alarm, and particularly discloses an anti-false-alarm fire-fighting smoke alarm method and system and a storage medium, and the method comprises the steps: carrying out the deep analysis through the refined obtaining of the data collection process parameters of a fire-fighting smoke sensing device, obtaining the data collection sensitivity factors, and combining with the data analysis process parameters to obtain the false alarm of the fire-fighting smoke sensing device. The step is crucial for improving the accuracy of the fire-fighting smoke sensing device, a scientific basis is provided for judging whether the performance of the fire-fighting smoke sensing device is optimized or not, the false alarm rate is effectively reduced, and the overall efficiency of the fire-fighting smoke sensing device is improved. The environment parameters of the target area are collected in real time through the fire-fighting smoke sensing device, the smoke fire-fighting demand coefficient of the target area can be accurately evaluated in combination with the response precision factor, the coefficient directly guides whether false alarm prevention and early warning measures need to be carried out on the target area or not, and therefore the fire risk is effectively prevented.

The invention discloses a smoke alarm device and an alarm control method, and particularly relates to the technical field of fire-fighting alarm devices.The device comprises a shell, and a multi-mode sensor module is arranged in the shell and used for collecting parameters in the environment in real time and generating detection signals; the data processing unit is electrically connected with the multi-mode sensor module through an I2C bus and is used for performing multi-dimensional analysis on the detection signal and generating an alarm decision instruction; the grading alarm module is used for receiving the alarm decision instruction through a GPIO (General Purpose Input / Output) interface; wherein the grading alarm module comprises a visible light warning assembly which comprises an RGBLED array and a laser projector and is used for generating a visual alarm and escape guidance; the sound wave generating device is used for transmitting a directional frequency-adjustable sound wave signal; the wireless communication module is electrically connected with the data processing unit; the invention aims to solve the problem that a smoke alarm device in the prior art can only play a role in warning and cannot effectively guide evacuation of users.

A smoke alarm includes a housing having a generally hollow interior, a printed circuit board arranged within the interior of the housing, and an optical chamber assembly connected to the printed circuit board. The optical chamber assembly has an interior chamber and at least one smoke entry location. A substantial entirety of the interior chamber is external to the housing. At least one light device for evaluating particles is arranged within an interior chamber of the optical chamber assembly.

The invention belongs to the technical field of smoke alarm false alarm prevention, and particularly discloses a smoke alarm water vapor false alarm prevention system based on double emission and double wave bands, which comprises a signal emission module, a signal receiving analysis module, a propagation environment correction module, a light path pollution compensation module and a judgment early warning module. According to the invention, a dual-band detection technology and an intelligent environment adaptation mechanism are innovatively established, the anti-interference capability is enhanced by adopting a dual-light-source cooperative detection and environment parameter real-time calibration technology, and the influence of environmental factors on the detection performance is reduced in combination with a light pollution self-compensation mechanism; and meanwhile, accurate identification is realized by analyzing the physical characteristic difference of smoke and water vapor, and the risk of environmental misjudgment is remarkably reduced while a real fire behavior is quickly responded by establishing a dynamic grading early warning model, so that the key technical problems that smoke detection is easily interfered and water vapor is confused in a complex scene are systematically solved.

The utility model relates to the technical field of smoke-sensing alarms, and particularly discloses a smoke-sensing alarm mounting support which comprises a base and a smoke-sensing alarm body, the upper end face of the base is rotatably connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a gear, the outer wall of the gear is meshed with a first rack, and the first rack is meshed with a second rack. The upper end face of the base is fixedly connected with a vertical plate, the front end of the vertical plate penetrates through and is in threaded connection with a threaded rod, the other end of the threaded rod is rotationally connected with a first rack, and the outer wall of a gear is in meshed connection with two second racks which are oppositely distributed and located above the first rack; according to the device, the two clamping seats can be driven to move by rotating the threaded rods, the smoke sensing alarms of different sizes can be mounted and fixed without electric driving, and the purpose of low use cost is achieved.

The invention discloses fire smoke alarm equipment based on a satellite positioning function, and belongs to the technical field of fire smoke alarm systems. Comprising a smoke alarm and a base, and double interchangeable collecting cylinders are arranged in the smoke alarm. The first collecting cylinder is used for a high-dust environment, and 80% of coarse dust is pre-separated through a large aperture and a settling table. The second collecting cylinder is used for high-humidity environment, small aperture and chimney effect condensation prevention, and the ventilation rate is larger than or equal to 96%. A smoke channel is integrated in an inner cavity of the upper connecting disc, an annular spraying array is arranged on the outer ring of the lower connecting disc, and the integration of detection, positioning and fire extinguishing is achieved. The satellite baseband chip and the infrared maze share an antenna guiding assembly, NMEA coordinates are frozen when smoke exceeds a threshold value, the NMEA coordinates are directly sent to a platform through NB-IoT, the positioning error is smaller than or equal to 2 m, and a platform map is a second-level flash point. The drawer type smoke detection module can be disassembled quickly in 5s, double silica gel sealing and pulse water spraying hole cooling are adopted, and long-term maintenance-free under high-temperature, high-dust and high-humidity conditions is ensured.

The invention relates to the technical field of fire detection, in particular to a smog alarm method based on a smog particle motion trail, which comprises the following steps: constructing a three-dimensional flow field distribution diagram of smog particles, and aiming at the sectional area change and curvature change of a current channel at a branch path, taking the predicted smog particle position as a center to obtain a smog particle motion trail distribution diagram; associating the flow velocity data of each branch path to obtain a flow velocity gradient sequence of each branch path; on the basis of the flow velocity gradient sequence of each branch path, when the flow velocity gradient exceeds a flow velocity threshold value, the smoke particle position in each branch path is updated; performing trajectory fitting on the smoke particles, and configuring concentration intensity indexes and updating time of the smoke particles in different branch paths according to concentration gradients corresponding to the motion trajectory sequences on the branch paths; and configuring a classification label of each branch path, and carrying out graded early warning according to flow velocity differentiation. And the accuracy and timeliness of smoke alarm are improved.

The invention discloses a smokeless electronic cigarette liquid capable of inhibiting generation of visible aerosol and a preparation method thereof, the smokeless electronic cigarette liquid is composed of a matrix component and an essence component, the matrix component comprises food-grade propylene glycol, absolute ethyl alcohol and purified water, and the essence component comprises essence, nicotine salt, a cooling agent, food-grade propylene glycol and a sweetening agent. According to the smokeless electronic cigarette liquid, by canceling traditional atomized matrix glycerol, the electronic cigarette liquid hardly generates aerosol in the heating and using process, namely hardly generates obvious smoke which is lower than an alarm threshold value of a smoke alarm, does not trigger the smoke alarm, avoids environmental residues, and is safe and reliable. According to the present invention, the use requirements of users in public places or no-smoking areas can be met, the trouble to surrounding people is effectively avoided, the harm to the human respiratory system is reduced, the environmental protection and health are provided, the transmission efficiency and the taste of nicotine are retained, and the preparation method has characteristics of simple processing, simple process requirement and low cost, and is suitable for large-scale production.

The invention discloses a low-light power generation hardware management system of a smoke alarm, and relates to the technical field of low-light power generation of smoke alarms, and the system comprises a micro-control module which controls a first conversion module and a second conversion module to carry out power adjustment, electric energy superposition and electric energy bootstrap on electric energy generated by a photovoltaic module. The stage detection module carries out voltage detection of four different stages on the photovoltaic module so as to control the first conversion module and the second conversion module to independently supply power according to different voltage stages, and the transmission module controls the first conversion module and the second conversion module to carry out electric energy superposition. And controlling the first conversion module, the second conversion module and the battery control module to carry out electric energy superposition, and controlling the battery control module to directly supply power when no light exists or a smoke alarm occurs. According to the low-light power generation hardware management system of the smoke alarm, the utilization rate of photovoltaic electric energy can be improved, the electric energy consumption of the battery control module is reduced, the cruising ability is improved, the power utilization requirement is met, and the power supply efficiency is improved.

The embodiment of the invention discloses a forest fire real-time monitoring system based on multiple sensors of an unmanned aerial vehicle. The forest fire real-time monitoring system is characterized by comprising a four-rotor unmanned aerial vehicle, edge computing equipment, a carbon monoxide sensor and an infrared visible light double-camera, the quad-rotor unmanned aerial vehicle reciprocates and patrols the area for a long distance by relying on a flight task pre-input by edge computing equipment in a specified working range, and a charging hangar is configured at a take-off point of the quad-rotor unmanned aerial vehicle; the edge computing device is installed on the quad-rotor unmanned aerial vehicle, obtains video streams of visible light images and infrared images shot by the infrared and visible light double-camera in real time in the process of flying along a path, carries out real-time smoke alarm in combination with an electric signal input by the carbon monoxide sensor, and carries out multi-mode real-time monitoring by utilizing multiple sensors; when the edge computing device recognizes the forest fire, the forest fire is fed back to the quad-rotor unmanned aerial vehicle, then the quad-rotor unmanned aerial vehicle enters a return flight mode, and forest fire positioning is recorded in the device and fed back to the data center.

The utility model belongs to the technical field of high-rise building fire-fighting equipment detection, and particularly relates to a high-rise building fire-fighting equipment detection device, which comprises a smoke hood, the bottom of the smoke hood is in threaded connection with a circular-truncated-cone-shaped bottom-layer protective cover, a plurality of uniformly distributed air inlet holes are formed in the circumferential side wall of the bottom-layer protective cover, and a fan is mounted in an inner cavity of the bottom-layer protective cover; the overall size of the device is small, fire fighting detection is conducted on a smoke alarm by means of the multiple detection mechanisms at the top of the device body, detection personnel can conveniently hold the device body by arranging the first butt joint rod, the fan is arranged and arranged under the smoke generator, and the detection efficiency is improved by arranging the first butt joint rod and the second butt joint rod. The smoke is quickly blown away by using wind generated when the fan works, so that residual smoke in the bottom of the bottom plate, the inner cavity of the displacement cavity and the inner cavity of the hollow interlayer of the diffusion head can be quickly discharged under the action of the wind generated when the fan works, time is greatly saved for subsequent detection, and the overall detection effect of the device is improved.

A push-to-test control panel for controlling a single or a plurality of smoke alarms including an outlet cover for mounting to an outlet box or low voltage outlet box and a circuit board disposed on a back surface of the outlet box. The push-to-test control panel is wired to at least one smoke alarm. Depressing of the first button tests initiates a test or, if the test has been initiated, depressing of the first button stops the test. A time period for the test is controlled by the circuit board to stop testing after an established period of time. The second button silences an alarm function for a period of time as established by the circuit board. The push-to-test device may include an emergency button for triggering a strobe light or other alarm on the exterior of a house for easy identification of the house for emergency responders.

The utility model aims to provide a mounting structure of a smoke alarm, which solves the problem that the traditional mounting structure of the smoke alarm cannot prevent dust, and comprises a top seat, the smoke alarm is fixedly arranged at the lower part of the top seat; the air gathering pipe is arranged at the lower part of the top seat, and the air gathering pipe is arranged on the outer side of the smoke alarm in a sleeving manner; the filter screen is detachably arranged at the lower part of the air gathering pipe; the air blowing mechanism is arranged at the lower part of the filter screen; according to the device, the problem that a traditional smoke alarm installation structure cannot prevent dust is solved.

An outdoor equipment prefabricated cabin safety monitoring system disclosed by the present invention comprises a mobile monitoring mechanism, the mobile monitoring mechanism comprises a mounting strip, the lower end of the mounting strip is provided with a sliding groove, a rotating shaft is rotatably connected between the inner walls of the left and right sides of the sliding groove, and the rotating shaft is provided with a reciprocating thread layer. A sliding block is in threaded connection with the reciprocating threaded layer of the rotating shaft, the sliding block is in sliding connection with the inner wall of the sliding groove, the lower end of the sliding block is fixedly connected with a connecting rod, and the lower end of the connecting rod is fixedly connected with a smoke alarm. And the gas flowing mechanism comprises a vertical plate fixedly connected to the lower portion of the mounting strip, and the inner bottom space of the piston cylinder communicates with the smoke alarm space through a first one-way pipe. According to the monitoring system, the movable smoke alarm is adopted, in the using process, the detection range is widened, and the effect of timely response is achieved through cooperation with the gas flowing structure.

The invention provides a fire-fighting monitoring method and device, a storage medium and a program product. The method comprises the following steps: taking at least one area which meets a first smoke alarm requirement and is confirmed according to smoke sensing information as a to-be-confirmed area; judging whether the area meets a second smoke alarm requirement or not according to the personnel monitoring information and smoke sensing data and time data in the area acquired within a preset time length; and taking the to-be-confirmed area meeting the second smoke alarm requirement as a fire-fighting target area, sending the smoke sensing data, the area label and the time data corresponding to the fire-fighting target area to a cloud server, and sending fire-fighting evacuation prompt information to user equipment arranged in the fire-fighting target area through the cloud server. According to the technical scheme, the target building is divided into a plurality of areas, and the personnel evacuation efficiency of each fire-fighting target area in the target building is improved through combination of hierarchical smoke alarm requirements and personnel monitoring information for each area.

The invention discloses a vehicle, a control method and device thereof and a computer readable storage medium, the vehicle comprises an air compressor and a vortex tube, the compressor is connected with the vortex tube, and the vortex tube is arranged corresponding to a vehicle battery pack. The method comprises the steps that the temperature of a vehicle battery pack, the driving state of a vehicle and the conditions of drivers and passengers on the vehicle are obtained; under the condition that the temperature is larger than a first preset temperature threshold value, an air compressor is controlled to be started, so that the pressure of the vortex tube is increased; and under the condition that it is determined that the battery pack has the smoke alarm, the vehicle is controlled based on the driving state and the conditions of a driver and passengers. According to the method, the battery can be rapidly cooled, the risk of spontaneous combustion of the battery caused by too high battery fault temperature is avoided or reduced, the safety of people and properties in the vehicle can be guaranteed, and the safety risk of a public area is reduced.

The invention discloses a video-smoke sensing linkage intelligent fire early warning method and system, and the method comprises the steps: A1, collecting and preprocessing a monitoring video stream and real-time smoke concentration data of a fire fighting access, and obtaining a preprocessed monitoring video stream and preprocessed smoke concentration time sequence data; a2, fire enhancement visual features are extracted according to the preprocessed monitoring video stream; a3, extracting a fire precursor visual feature according to the fire enhanced visual feature, and calculating a preliminary fire confidence score; a4, smoke concentration trend characteristics are extracted; a5, based on the fire precursor visual features, the preliminary fire confidence score and the smoke concentration trend features, calculating a fire confidence score and a dynamic smoke alarm threshold; a6, the fire behavior grade is judged; and A7, generating an event processing instruction according to the fire behavior grade. According to the invention, the problem of inaccurate fire early warning caused by difficulty in linkage of a video and a smoke sensor and incapability of dynamically adjusting an alarm threshold in a traditional method can be solved.

A safety management method and system for a smart building. The system comprises: a central processing module and a 3D building model, the central processing module being electrically connected to a data storage module; cameras, the central processing module combining the cameras and the 3D building model, when a camera at a certain position in the 3D building is clicked on, a pop-up window appearing, and picture information being actually captured by the camera being displayed; mobile terminals, the mobile terminals performing information receiving and information feedback by means of the central processing module; smoke alarms, the plurality of smoke alarms being fixedly mounted in inflammable regions, and matching temperature sensors being provided; and GPS positioners, the plurality of GPS positioners being respectively used in cooperation with warning lamps and the smoke alarms, and the smoke alarms, the warning lamps and the GPS positioners being respectively bound with the 3D building model.

This utility model provides a smoke alarm mechanism for ceiling installation, including a magnetic suction base plate. A smoke alarm body is fixedly installed below the magnetic suction base plate. A magnetic suction cup at the upper end of the magnetic suction base plate is attracted and fixed to the lower surface of the perforated ceiling. A fixing rope fixedly installed on the magnetic suction base plate passes through the perforated ceiling and a limiting plate, and then through a tightening cylinder. It then embeds into a vortex groove through a notch in the tightening cylinder. A locking nut and a lower pressure plate are tightened and fixedly installed on the tightening cylinder, pressing and fixing the fixing rope. This utility model uses a magnetic suction cup to adhere to the perforated ceiling, eliminating the need for drilling, resulting in high efficiency and low cost. Three or more fixing ropes, passing through the tightening cylinder and vortex groove, along with the locking nut and lower pressure plate, provide a secure connection to prevent falling. The vortex groove structure also facilitates fine-tuning of the alarm position, adapting to various installation environments.

The utility model relates to the technical field of electromechanical equipment protection devices, in particular to an underground electromechanical equipment protection and monitoring integrated device which comprises an electromechanical protection box, a base is arranged at the bottom of the electromechanical protection box, a base plate is arranged between the bottom of the electromechanical protection box and the base, and the side edge of the electromechanical protection box is fixedly connected with an installation base. The electromechanical protection box is screwed on the base through a mounting base, an alarm lamp is mounted at the upper end of the electromechanical protection box, a temperature sensor, a smoke alarm and a sliding groove are arranged on the inner side of the electromechanical protection box, and a box door is rotationally mounted on the front side of the electromechanical protection box. According to the utility model, the equipment mounting flat plate is arranged in the case, and the equipment mounting flat plate can slide to the outer side of the case without being limited by the operation space in the case, so that the earlier-stage mounting work and the later-stage replacement and maintenance work of the equipment are more convenient; and the bearing capacity is enhanced and guaranteed when the equipment mounting flat plate is externally arranged, and the practicability is enhanced.

The utility model discloses a fire-fighting device for fire-fighting engineering, and relates to the technical field of fire-fighting devices, the fire-fighting device comprises a base and a smoke alarm, the smoke alarm is clamped on one side of the base, both sides of the middle of one end of the smoke alarm are fixedly provided with insertion rods, and the middle of one end of each insertion rod is provided with a notch. According to the utility model, when the smoke alarm is overhauled, the two pressing rods are pressed to extrude inwards, the spring shrinks, the limiting block and the limiting rod move and are separated from the notch and the chute, and the alarm can be taken down for overhauling after the limiting is cancelled; the pressing rod needs to be pressed to drive the spring to contract, the limiting block deviates to one side, the pressing rod is loosened after the inserting rod makes contact with the bottom, the spring is reset, the limiting block and the limiting rod are clamped in the sliding groove and the limiting groove respectively, and then installation can be completed, the time of a maintainer staying at a high position is shortened by simplifying the disassembling and installing process, and safety is improved.

The application provides a smoke alarm with a temperature detection structure, comprising a smoke alarm body, the smoke alarm body comprising a flow guide fan, a reflection assembly, an infrared emission module and an infrared receiving module, the flow guide fan being installed at the bottom of a top plate, the side edges of the top plate each being provided with a fixing seat, the top plate and the bottom structure each being installed on a ceiling by using a screw passing through the fixing seat, the side edges of the top plate being provided with a plurality of smoke exhaust holes, the flow guide fan sucking in air from the bottom and blowing out from the smoke exhaust holes, the infrared emission module and the infrared receiving module each being installed at the bottom position by the reflection assembly, only the reflection assembly needing to be maintained and cleaned, the protection effect of the infrared emission module and the infrared receiving module being improved, the temperature sensing module being installed at the bottom of the reflection assembly, the temperature sensing module being quickly cleaned and processed without the need of disassembling the shell.

The invention discloses a lithium battery thermal runaway early warning and shock wave collaborative dry water suppression system. The system comprises a heat dissipation structure outer cover arranged outside a lithium battery in a covering mode and an explosion scattering device wrapping the outer cover. A sliding rail is arranged on the inner wall of the outer cover and slidably connected with a bottom heat dissipation plate. The outer cover and the bottom heat dissipation plate are made of flame-retardant materials, and heat dissipation holes are evenly formed in the outer cover and the bottom heat dissipation plate. Temperature alarm devices are arranged on the outer cover and the bottom heat dissipation plate, a smoke alarm device is arranged at the position, located above the lithium battery, of the outer cover, the explosion scattering device is filled with dry water, a deformation alarm device is arranged on the outer wall of the explosion scattering device, and the temperature alarm device, the smoke alarm device and the deformation alarm device are integrally connected with the trigger device. When any two of temperature, flue gas and deformation are detected to be abnormal, the explosion scattering device can be activated to explode, and dry water uniformly covers the surface of the lithium battery. The system is high in universality and safe and reliable to use, thermal runaway of the battery is inhibited physically and chemically, detonation of the battery is prevented, and the use safety of the battery is greatly improved.

The utility model relates to fire control detection technical field, and disclose a kind of smoke alarm remote triggering device for fire detection, including protective cover, the inside of protective cover is installed with smoke alarm, the outer edge of smoke alarm is installed with smoke making storehouse, the inside of smoke making storehouse is opened with cavity, the inner bottom of cavity is installed with heating pipe, the inner wall of cavity is connected with thread ring with thread, the top of thread ring is installed with pressing plate, the inner wall of pressing plate is installed with extension ring, the bottom of extension ring is opened with four recesses;By smoke alarm, it can be remotely controlled heating pipe operation to heat the smoke oil inside cavity, further can generate smoke, so that smoke can be discharged to the inside of protective cover through smoke exhaust pipe, and can be directly sprayed outside smoke alarm, for actively triggering smoke alarm to carry out smoke detection, without manually igniting combustible to produce smoke, more environmentally friendly.