339 results about "Smoke detectors" patented technology

The invention provides an intelligent fire prevention and control fire-fighting management system and method for a lithium battery energy storage power station, and relates to the technical field of data processing, and the method comprises the steps: arranging a multi-level temperature sensor, a gas detector and a smoke detector in and outside a battery module, and collecting and forming multi-source monitoring data; performing time sequence rate analysis, and if a preset condition is met, generating early warning data; in combination with sensor matrix distribution in the battery module, spatial cross comparison is executed to obtain abnormal positioning data, and false anomalies are eliminated through multi-point consistency verification; generating a directional processing instruction corresponding to the injection unit, and setting injection data in the processing instruction; the spraying unit is controlled to release an atomized fire extinguishing medium, so that the medium forms a permeation flow field in the gaps of the battery cells, and treatment feedback data is acquired and formed; performing trend analysis, and if the trend is not enough to recover to the preset safety range, generating a secondary processing instruction; according to the invention, the autonomy and accuracy of fire control management are improved.

The invention provides a control method, device and equipment of a smoke detector and a medium, and the control method comprises the steps: obtaining a signal sampling value and an environment parameter according to a preset sampling period; calculating and storing a corresponding initial compensation value according to the signal sampling value; calculating a corresponding adjustment coefficient through an environment correction model according to the environment parameters; the environment correction model represents a function relationship between an environment parameter and an adjustment coefficient; according to the initial compensation value, the adjustment coefficient, a historical initial compensation value and an initial alarm threshold value, calculating a real-time alarm threshold value, and giving an alarm according to the real-time alarm threshold value; the historical initial compensation value is calculated according to a historical signal sampling value. According to the smoke detector control method and device, the equipment and the medium provided by the invention, the technical problem that the alarm threshold cannot be effectively adjusted is solved.

The invention relates to the technical field of fire-fighting management, and discloses an intelligent fire-fighting management method and system based on a multi-modal large model, and the method comprises the steps: 1, collecting multi-modal perception data in a field environment, and transmitting the multi-modal perception data as input data to a multi-modal semantic recognition module; and 2, performing modal analysis and semantic fusion on the input data by using the multi-modal semantic recognition module, and generating a unified semantic description containing fire state elements. According to the invention, a multi-modal perception data semantic fusion mechanism and a multi-modal large model-driven fire behavior recognition framework are adopted, and data of different modals from a camera, a temperature and humidity sensor, a smoke detector and combustible gas monitoring equipment are input into a unified semantic recognition module, so that unified fire behavior state semantic description is constructed; and the technical effects of multi-source data complementation and semantic-level collaborative recognition of the fire state are achieved.

To provide a smoke detector capable of facilitating the adjustment of smoke detection sensitivity.SOLUTION: The smoke detection device 1 includes a substrate 10, a light emitting unit 11, a light receiving unit 12, a first optical member 111, and a second optical member 121. The light-emitting part 11 is surface-mounted on the main surface 10A side of the substrate 10. The light receiving part 12 is surface-mounted on the 10A side of the main surface of the substrate 10. The first optical member 111 is provided on the light emission side of the light-emitting part 11. The second optical member 121 is provided on the light incident side of the light receiving section 12. There is an air gap Vd1 between the first optical member 111 and the second optical member 121.SELECTED DRAWING: Figure 1

The invention discloses a fire source positioning method and terminal based on an Internet of Things smoke detector, and relates to the technical field of fire source positioning, and the method comprises the steps: 1, collecting the detection data in a monitoring region in real time, and when the detection data meets a preset triggering condition, executing the step 2: starting a time-limited data collection window, step 2, verifying the rationality of the detection data by adopting an RANSAC algorithm, and filtering abnormal detection data; step 3, carrying out multi-modal wind direction estimation, and carrying out wind direction fusion calculation; 4, establishing a three-dimensional Gaussian plume model, simulating spatial distribution of smoke under the action of wind direction and turbulence diffusion, and obtaining a plurality of candidate fire source positioning points; multi-source data mutual verification and compensation are carried out through a multi-modal data fusion mechanism, system errors of a single data source are eliminated, data reliability is improved by matching with an enhanced RANSAC anomaly detection algorithm and an environment adaptive Gaussian plume model, and accurate positioning of a fire source when an indoor fire occurs is realized by matching with time control and confidence evaluation.

Magnetic holder for smoke detectors with removal detection

1. The name of the design product: detector. 2. The use of the design product: design 1 is used for temperature information collection of temperature detector, design 2 is used for smoke information collection of smoke detector. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: design 1 perspective view. 5. Design 1 is specified as the basic design.

A disposable forest fire detector, which mainly comprises a detection apparatus and a signal transceiving apparatus, wherein the detection apparatus comprises a trigger apparatus, a sound-producing apparatus, and an energy storage apparatus, the trigger apparatus being connected to the energy storage apparatus, and a sound-producing cavity being connected to the energy storage apparatus, and the trigger apparatus being used for triggering the energy storage apparatus to release energy that enables the sound-producing apparatus to operate. By means of using the detector, it is only necessary to widely cover a forest with sound-producing apparatuses for fire detection. After receiving signals, the signal transceiving apparatuses send the signals to a remote terminal of, for example, a fire command center, such that the detection of an entire fire can be completed. The sound-producing apparatus of the fire detector is small, light-weight, low-cost and environmentally friendly, and there is no need to deploy expensive smoke detectors or flame detectors.

To provide a smoke detector capable of detecting smoke more quickly than a conventional smoke detector.SOLUTION: The smoke detector 11 includes a light emitting unit 111, a light receiving unit 113, a light receiving unit 114, and a control unit 118. The light receiving unit 113 receives scattered light that is emitted from the light emitting unit 111 and scattered by the particles contained in the air in the region A. The light receiving unit 114 receives reflected light that is emitted from the light emitting unit 111 and reflected by a particle passing through the position B. The control unit 118 measures the number of particles that have passed through position B within the most recent period of a predetermined length of time by counting the pulse waves that appear in the change over time of the light intensity signal outputted from the light receiver 114. The control unit 118 determines the presence or absence of smoke in the external space based on the number of particles thus measured and the amplitude of the light intensity signal output from the light receiving part 113.SELECTED DRAWING: Figure 2

The present invention relates to a smoke detector test bench (test device) for the functional testing of a smoke detector, in particular a linear smoke detector based on the transmitted light principle, in a manner that complies with standards and / or is standardized, and to its use or application in this regard, as well as to a corresponding smoke detector test method.

1. Name of the product in this design: Smoke Detector. 2. Purpose of this design: For use in smoke detectors to detect smoke concentration. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

A smoke detector includes detector mount that can define a cavity into which air can flow to a detector component of a detector body engaged with the detector mount. The detector mount can include a base, e.g., that defines a cavity into which air can flow and / or into which a portion of the detector body can extend, and an intermediate component that can removably engage with both the base and the detector body so the base is engaged with the detector body via the intermediate component. The intermediate component can include fins or other features to direct air flow in the cavity to one or more portions of the detector body.

This invention relates to the field of safety alarm equipment technology, specifically an explosion alarm device for cable well joints. A smoke detector and a temperature detector are fixedly installed on the top surface of an upper mounting box, with their probes located inside the upper mounting box. Two explosion-proof enclosures are fixedly embedded inside the upper and lower mounting boxes, respectively, and wiring grooves are provided on the side walls of the explosion-proof enclosures. A lifting frame is fixedly mounted above a movable frame via a connecting rod, and warning light strips and buzzers are fixedly embedded on the side walls of the lifting frame. This device enables more accurate detection of explosions at cable joints and effectively prevents damage to equipment and personnel inside and outside the cable well, ensuring the safety of the cable well. The warning light strips and buzzers on the lifting frame provide outdoor alarms, facilitating alerts to maintenance personnel and pedestrians, and enabling maintenance personnel to locate the explosion point more quickly and efficiently.

The present application is suitable for security technology field, provide a kind of smoke detector, the smoke detector of the present application, by rotating the switch plate makes it along axial movement and press the switch, simultaneously by lock piece the movement track lock switch plate being set on guide smoke plate, make switch be in normally closed state, to make smoke detector be in power-on state.And when reverse rotation switch plate, release the lock state of switch plate, switch plate release switch, make switch be in normally open state, to make smoke detector be in power-off state.The smoke detector is cooperated by switch plate and lock piece the movement track being set on guide smoke plate, can realize manual power-on and power-off, can avoid the problem that existing smoke detector must be installed to power-on test, improve the installation efficiency of worker, reduce the risk of installation worker climbing operation.In addition, when multiple switches are provided on the smoke detector and need to be continuously pressed or long-pressed for testing, one-handed operation can be realized, and the testing efficiency is improved.

The utility model discloses a tool bit box, a tool bit box protection system and a filter stick cutting device. The tool bit box comprises a tool sharpening unit, a box body shell, a smoke detection unit and a smoke adjusting unit. The knife sharpening unit is located in an inner area surrounded by the box body shell. A first smoke detector included in the smoke detection unit is fixed to the box shell, and the distance between the first smoke detector and the knife sharpening unit is smaller than or equal to the distance between any point in the box shell and the knife sharpening unit. The smoke adjusting unit comprises a liquid adjusting structure, a liquid output module of the liquid adjusting structure is fixed to the box shell, the water tank is located in an outer area surrounded by the box shell, a connecting pipeline of the liquid adjusting structure penetrates through the box shell, and the connecting pipeline is connected with the water tank and the liquid output module; the smoke detection unit is used for detecting the smoke concentration generated by the knife sharpening unit in the internal area, the smoke adjusting unit is used for adjusting the smoke concentration of the internal area, and by means of the method, it can be guaranteed that the knife head box is more reliable.

Device for mounting a smoke detector (1) with an optical measuring arrangement, in particular a scattered light measuring arrangement (2), comprising at least one light-emitting element (3) and at least one light-receiving element (4), which are mounted in or on a multi-part measuring chamber (5) comprising at least one upper measuring chamber part (6) and at least one lower measuring chamber part (7) with a labyrinth (8) forming a light-tight fluidic connection open to the outside atmosphere, wherein a positioning of the light-emitting element (3) and / or the scattered light-receiving element (4) in the scattered light measuring arrangement (2) is provided with respect to an optical axis (10) by simultaneously positioning and fixing the light-emitting element (3) and / or the light, in particular scattered light,The receiving element (4) is configured during the joining process of the multi-part measuring chamber (5) consisting of at least one upper measuring chamber part (6) and at least one lower measuring chamber part (7) to the optical axis (10) by means of at least one deformable element (11) and a holder (9). It is characterized in that the deformable element (11) is configured as a wedge-shaped body (12) in the upper measuring chamber part (6), which positions and fixes the light-emitting element (3) and / or the scattered light-receiving element (4) in the holder (9).

This invention discloses a detection method, system, and storage medium for photoelectric smoke detectors, relating to the field of detector detection. By performing static and dynamic smoke simulations on the final test piezoelectric element, the invention tests the response capability and sensitivity of the photoelectric smoke detector from both static and dynamic perspectives, improving the comprehensiveness of the test. The test results can thus accurately reflect whether the photoelectric smoke detector needs repair or replacement. Furthermore, by employing a tuna optimization algorithm to iterate multiple parameters of the piezoelectric element multiple times simultaneously, and using the error between the abrupt change time of the piezoelectric element and the abrupt change time of the actual smoke as the fitness function, the error between the abrupt change time of the piezoelectric element and the abrupt change time of the actual smoke decreases with each iteration, ultimately meeting the simulation requirements.

1. The name of the design product: smoke detector. 2. The use of the design product: for smoke detector. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The utility model discloses a refraction luminescence smoke sensing device comprising a housing, the upper surface of the housing is provided with a mounting mechanism, the middle part of the inner side surface of the housing is provided with a drainage mechanism, and the edge of the inner side surface of the housing is provided with a light sensing mechanism. According to the refraction light-emitting smoke sensing device, through the arrangement of the first refraction plate, the second refraction plate and the concave lens, light emitted by the light-emitting part irradiates the outer surface of the first refraction plate, the light is reflected to the second refraction plate through the first refraction plate, then the second refraction plate scatters the light through the concave lens, the interaction between the light and smoke particles is enhanced, and the smoke sensing effect is improved. When smoke particles enter the shell, light can be refracted, scattered or reflected, part of light can be captured by the light receiver, and if the intensity of received light signals is different from a set threshold value, the device can trigger an alarm, so that the smoke detection sensitivity is improved, and meanwhile, the false alarm rate is reduced.

A battery omission prevention structure for a smoke detector is provided, and belongs to the technical field of smoke detectors. The battery omission prevention structure includes: an omission prevention shell, in which an element mounting slot is provided, where a battery compartment is arranged at a bottom of the omission prevention shell; elastic plates are arranged on two sides of the battery compartment; when a battery is not mounted, the elastic plates extend inward and protrude out relative to an inner wall of the battery compartment; tops of the elastic plates extend out of the omission prevention shell; an upper cover clamped onto the omission prevention shell; and a lower cover rotatably clamped onto the omission prevention shell. The following problems are solved: Most smoke detectors are powered by independent batteries. Installation personnel may forget to mount a battery, or may omit mounting a new battery during battery replacement.

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 invention discloses a fire-fighting smoke sensing detection instrument, and belongs to the technical field of chemical monitoring analysis, the fire-fighting smoke sensing detection instrument comprises a combined shell and a combined mounting seat, a smoke detector and an indicating lamp are fixedly mounted in the combined shell, and the detection end of the smoke detector is located on the outer side of the combined shell; through the arrangement of the press-in assembly and the side limiting assembly, during installation, the device only needs to be directly pressed and installed between the two installation plates of the installation frame, the effect of extrusion and immediate installation can be rapidly achieved through the linkage effect, meanwhile, the effect of simultaneous positioning of multiple points is achieved, the installation and positioning rapidness of the structure is improved, and the installation efficiency is improved. Meanwhile, the overall structure is designed into a split type, disassembly and inspection can be conducted regularly, the overall structure does not need to be disassembled, the disassembly process is convenient and rapid, and after inspection, the combined shell and the combined installation base are rapidly assembled, the connecting assembly is rotated, and clamping is conducted again.

The invention provides a modular assembly type high-voltage distribution box, and relates to the technical field of electrical equipment. The coating device for tent cloth production comprises a shell, a box door is movably arranged on the front face of the shell, a protection block is fixedly arranged on the back face of the box door, the inner walls of the two sides of the shell are each provided with two T-shaped plates, two supporting plates are arranged between the multiple T-shaped plates, and fire extinguishing structures are arranged on the two sides of the shell. By arranging the fire extinguisher, the first push rod motor and the pressing plate, when a fire occurs, the photoelectric smoke detector sends a signal to the central control module, the central control module starts the first push rod motor at the same time, and the output end of the first push rod motor drives the pressing plate to move downwards; when the pressing plate moves downwards, a handle at the top of the fire extinguisher is extruded and drives two connecting rods at the top, the handle of the fire extinguisher is extruded to spray out dry powder, and the dry powder enters the vertical pipe through the connecting pipe, is finally sprayed out through a through hole in the outer portion of the vertical pipe and acts on a fire source, so that the purpose of automatic fire extinguishing is achieved.

The application provides a smoke detector horizontal labyrinth for a battery pack, adopts a horizontal structure, is light and thin in volume, is convenient to install in the battery pack, adopts a double-emission single-reception forward scattering combined with rear scattering optical structure, improves the accuracy of black smoke detection, and prevents missed reports, and comprises a PCB circuit board, characterized in that: a receiving tube, a first light-emitting tube and a second light-emitting tube are installed on the PCB circuit board, the receiving tube, the first light-emitting tube and the second light-emitting tube are arranged in parallel with the PCB circuit board, and the main optical axes of the three are also parallel with the PCB circuit board; the receiving tube and the first light-emitting tube form a forward scattering structure, and the receiving tube and the second light-emitting tube form a rear scattering structure; the first light-emitting tube is selected from an infrared light-emitting tube, and the second light-emitting tube is selected from a blue light-emitting tube, a green light-emitting tube, a yellow light-emitting tube, a red light-emitting tube or an infrared light-emitting tube.

The application discloses a smoke detector and belongs to the technical field of fire-fighting equipment. The smoke detector comprises a detector main body, a communication element, a reset element and a cover plate. The detector main body is used for being installed on a basic installation surface, and the detector main body is provided with an installation space. The communication element and the reset element are arranged in the installation space. The cover plate is detachably connected with the detector main body, and the cover plate is used for closing the installation space. The cover plate can move along the direction from the detector main body to the basic installation surface, so as to trigger the reset element. In the scheme, the installation space is arranged on the detector main body, and the communication element and the reset element are arranged in the installation space. The number of slotting on the detector main body can be reduced, and the mold opening cost of the smoke detector is reduced. Meanwhile, the cover plate can be used as a key for triggering the reset element, and the key for triggering the reset element does not need to be additionally arranged, so that the material can be saved, and the cost is reduced.

Various embodiments of the teachings herein include a monitoring system. An example includes: a housing defining an internal test chamber; one or more passageways allowing air flow into the internal test chamber from a surrounding area; a source of compressed gas; an air channel in the housing to direct gas from the source of compressed gas to dislodge contaminants in the one or more passageways; an actuator to activate the source of compressed gas; and a controller to operate the actuator.

A system and method for the use of digital analysis to filter out extraneous light are disclosed. The system may include a light source to emit a light beam in a smoke detector. The system may include a first light sensor in the smoke detector to receive a reflected light beam corresponding to the light beam reflecting off a smoke particle. The system may include a second light sensor in the smoke detector to receive a noise light corresponding to ambient light in the smoke detector. The system may include a control circuit. The control circuit may be to receive the reflected light signal from a first light sensor indicative of the reflected light beam and to receive a noise signal from the second light sensor indicative of the noise light. The control circuit may be to reduce noise from the reflected light signal based on the noise signal.

Newness and distinctiveness is claimed in the features of shape and configuration of a smoke detector as shown in the accompanying representations.

Various embodiments of the teachings herein include a monitoring system. An example includes: a housing defining an internal test chamber; one or more passageways allowing air flow into the internal test chamber from a surrounding area; a source of compressed gas; an air channel in the housing to direct gas from the source of compressed gas to dislodge contaminants in the one or more passageways; an actuator to activate the source of compressed gas; and a controller to operate the actuator.