33 results about "Alarm sensor" patented technology

The present application belongs to the technical field of blade clearance protection, and particularly relates to a wind turbine generator unit blade clearance protection system and method. The technical scheme is as follows: a wind turbine generator unit blade clearance protection system, comprising a clearance protection control box and a blade tip deformation alarm sensor, the blade tip deformation alarm sensor is arranged corresponding to the blade tip of a fan, the blade tip deformation alarm sensor is electrically connected with the clearance protection control box, a fan control system and a wireless receiver are further installed on the fan, the clearance protection control box is in communication connection with the wireless receiver, and the wireless receiver is electrically connected with the fan control system. The present application provides a wind turbine generator unit blade clearance protection system and method for measuring whether the blade clearance is within a safe range by using a deformation switch sensor.

The utility model provides an alarm device for emergency safety. The alarm device comprises a mounting plate; and the supporting frame is fixedly mounted at the bottom of the mounting plate, a fixing frame is fixedly mounted on one side of the supporting frame, and a driving motor is fixedly mounted on one side of the fixing frame. According to the emergency safety alarm device provided by the utility model, through mutual cooperation of the driving motor, the worm, the worm gear, the rotating shaft, the winding wheel, the pull rope, the fixed plate, the support frame, the first contact terminal, the second contact terminal and other structures, when the device operates, the driving motor is started to drive the worm to rotate, and then the worm drives the worm gear to operate; by means of the self-locking characteristic of the worm and gear mechanism, after the driving motor stops working, the worm gear and a part connected with the worm gear can stably maintain the current position, the characteristic not only avoids random lifting of the alarm device body caused by accidents, guarantees the stability of the alarm device body during working, but also ensures that the alarm sensor is always located at the optimal detection position, and improves the detection accuracy. And the detection precision is improved.

The utility model belongs to the technical field of fire extinguishing simulation, and particularly relates to an airplane fire extinguishing system simulation training device which comprises an operation module, a display module and a simulation circuit module which are connected with one another. The control relationship between the line laying and construction of the analog circuit module and the preset line on the airplane is consistent, and the circuit of the analog circuit module is provided with an analog fire alarm sensor used for simulating a fire alarm signal; the operation module controls a simulation fire alarm sensor in the simulation circuit module to simulate and generate a fire alarm signal according to the operation of a user, and reads the response of the simulation circuit module; the display module displays corresponding information according to the states of the operation module and the analog circuit module. The technical scheme provided by the utility model corresponds to the real object installation position on the machine completely according to the control relation of the actual circuit on the machine, and adapts to the operation environment and operation mode which are basically consistent with the real installation. The fire extinguishing system can simulate airplane fire and fire extinguishing line and pipeline actions after fire, and the working principle of the fire extinguishing system can be visually demonstrated.

The utility model discloses an intelligent self-cleaning smoke furnace device capable of increasing rain and snow through artificial catalysis. The intelligent self-cleaning smoke furnace device comprises a smoke furnace body, a ventilation automatic adjusting device, a control system, an alarm sensor, a contact wiring board and a self-cleaning layer. The outer wall of a chimney of the smoke furnace body is coated with a self-cleaning layer, the ventilation automatic adjusting device is arranged at the bottom of the smoke furnace body, the alarm sensor, the contact terminal wiring board and the control system are all arranged on the smoke furnace body, the contact terminal wiring board is connected with a smoke pipe ignition wire of the smoke furnace body, and the control system is connected with the smoke pipe ignition wire of the smoke furnace body. The alarm sensor, the contact terminal wiring board and the ventilation automatic adjusting device are all connected with the control system. The smoke furnace has the advantages that by integrating advanced technologies and equipment, automatic and intelligent operation of the smoke furnace is achieved, operation efficiency and safety are improved, and meanwhile maintenance cost and environmental influence are reduced.

The invention relates to the technical field of aquaculture constant-temperature equipment, and discloses an aquaculture circulating water constant-temperature control system and method based on microwave energy, and the system comprises a base plate, and the center of the top surface of the base plate is fixedly provided with a culture barrel, a microwave generation module, a circulating water treatment unit, a temperature detection network, an intelligent control center and a safety protection system. The microwave generation module comprises a heat preservation box, a heat exchange tube, a resonance tube, a magnetron and a waveguide, the circulating water treatment unit comprises a rotary drum type filtering device, a water tank and a flow sensor, and the temperature detection network comprises a water quality monitoring probe, a multi-point distributed optical fiber temperature sensor, an intelligent control center touch control type man-machine interaction interface and a PLC. The safety protection system comprises a high-temperature alarm sensor, a resonant cavity pressure safety valve and a microwave leakage monitoring probe, a double-closed-loop control strategy is adopted, an inner ring is used for controlling microwave power, an outer ring is used for adjusting circulating flow, and the device can dynamically optimize a temperature curve according to breeding varieties and growth stages.

The utility model relates to steel wire rope technical field, and disclose a kind of cable force detection device of sealed steel wire rope, including steel wire rope body, the left and right sides of steel wire rope body are all fixedly connected with connecting section, the surface of steel wire rope body is provided with detection component, the detection component includes hug tightly hoop, stress sensor, armoured cable, wireless gateway, sensor protection shell, cloud platform and cell -phone APP, two the hug tightly hoop is fixedly installed on the surface of steel wire rope body, by setting detection component, hug tightly hoop can firmly fixed stress sensor on the two sides of steel wire rope body, improve the precision of detection, simultaneously, wireless gateway can be detected data is transported to cell -phone APP by cloud platform, if cable force mutation or unbalance is found, can immediately alarm, sensor protection shell can also carry out protective work to stress sensor, realize the work of dustproof, waterproof and anti-impact, guarantee the stability of steel wire rope body cable force detection.

The invention provides a coal mine safety monitoring alarm studying and judging method and system based on data fusion. The method comprises the following steps: establishing an identification framework for representing alarm causes; determining a first support probability of various alarm causes in the recognition framework according to data of an alarm sensor; determining a second support probability of various alarm causes in the recognition framework according to the same type of sensor data located at the upstream and downstream of the alarm sensor; determining a third support probability of various alarm causes in the recognition framework according to different types of sensor data located in the same area as the alarm sensor; and fusing the first support probability, the second support probability and the third support probability of each type of alarm cause based on an evidence theory to obtain an occurrence probability representing each type of alarm cause, and studying and judging the cause of the alarm event according to the occurrence probability. According to the technical scheme provided by the invention, the accuracy and reliability of alarm reason identification are remarkably improved while the research and judgment efficiency is improved.

In some embodiments, a window fan has a housing mountable in a window, the housing comprising one or more fans therein and including interior and exterior sides and a top side, the top side configured to be in touch with a window panel when the window is in a closed state. An alarm sensor is disposed on the top side of the housing and configured to detect whether the window is open. A control circuitry is provided and configured to: responsive to the alarm sensor detecting that the window is in the open state, activate an alarm output device. The control circuitry may cancel an alarm upon receiving a user command from a control panel or detecting that the alarm sensor is disengaged by a sensor stopper.

The utility model relates to the related technical field of electric appliance fire hazard sensing and alarming sensors, in particular to an electric appliance fire hazard sensing and alarming sensor, which comprises a sensor protection shell, a display screen, a mounting shell and a mounting assembly, and is characterized in that heat generated by the mounting shell and the sensor protection shell is dissipated through a flat sheet membrane; ventilation is carried out through heat dissipation holes in a mounting plate, so that the electric appliance fire sensing alarm sensor adopts a lithium battery structure, dust can enter the heat dissipation holes and the interior of a flat sheet membrane during heat dissipation, filtering is carried out, and a flexible connection cover is slidably mounted on an operation panel, a sensor protection shell and a display screen through a folding cover; the flexible connection cover and the folding cover are folded and unfolded on the operation panel and the sensor protection shell for dust prevention and fire prevention, dust is prevented from entering the installation positions of the installation shell and the sensor protection shell, heat dissipation holes and a flat sheet membrane are prone to being exposed in a high-dust, lampblack or humid environment for a long time, and the flat sheet membrane can filter the dust and block and isolate the dust.

This invention discloses a tilt-sensing alarm sensor and its installation method, comprising multiple columns spaced along the boundary of a protected area, each column topped with a tilt-sensing alarm sensor. The tilt-sensing alarm sensor includes a fixed bracket, a sensing frame, and a sensor. The bottom ends of adjacent columns are connected by a lower crossbeam, and the tops of the columns are vertically connected to the base of the tilt-sensing alarm sensor. The mating portions of the tilt-sensing alarm sensors at the tops of adjacent columns are horizontally connected by an upper crossbeam. An anti-shearing net is installed within the frame formed by the upper and lower crossbeams and the two columns. Based on the tilt change of the anti-shearing net in the direction of gravity, the sensing frame and fixed bracket, which have a gap fit, generate a vertical force, which is sensed by the sensor. This invention improves anti-interference capability by optimizing sensor design, thereby reducing false alarms and missed alarms.

This invention discloses a method, apparatus, storage medium, and electronic device for identifying the cause of a carbon monoxide alarm. The method includes: obtaining information about a target vehicle after it enters a mine; processing the target vehicle information to generate a first database table; a carbon monoxide alarm sensor in the mine generating alarm information; processing the alarm information to generate a second database table; obtaining the coordinates of the target vehicle within a preset alarm duration based on the alarm start time in the alarm information; determining whether the coordinates of the target vehicle and the sensor coordinates within the preset alarm duration are within a preset distance; if so, identifying the cause of the alarm information as a non-safety accident alarm; if not, identifying it as a safety accident alarm, and generating an alarm identification information table for both. This invention improves the accuracy of carbon monoxide alarm cause identification and enhances the timeliness of identifying non-safety accident carbon monoxide alarms.

The application relates to the technical field of alarm devices, and particularly relates to an alarm device with an obstacle detection function, which comprises a mounting seat, an obstacle sensor, a cover shell and an alarm sensor. The obstacle sensor is mounted on the mounting seat. An airflow channel is formed between the cover shell and the mounting seat, and the airflow channel is in the detection area of the obstacle sensor. The alarm sensor is mounted on the cover shell and is arranged in the detection area of the obstacle sensor. The airflow channel provides a channel for the matter triggering the alarm sensor to reach the alarm sensor. In this way, the obstacle sensor and the alarm sensor are respectively mounted on the mounting seat and the cover shell, the alarm sensor and the airflow channel are arranged in the detection area of the obstacle sensor, the blind area of the obstacle sensor for detecting the environment obstacles of the alarm sensor is eliminated, the obstacle sensor can comprehensively monitor the environment obstacles of the alarm sensor, and the reliability of the alarm device is improved.

The utility model discloses an airplane fire alarm signal system detection circuit, which comprises a detection circuit, the detection circuit comprises a power plug, a main switch K1, a wave band change-over switch K2, a panel detection signal lamp and an inspection plug, the positive electrode end of the power plug is respectively connected with one end of the main switch K1 and one end of the wave band switch K2, and the negative electrode end of the power plug is connected with one end of the panel detection signal lamp; the other end of the main switch K1, the other end of the wave band switch K2 and the other end of the panel detection signal lamp are connected to a socket matched with a CH2 bolt on a fire alarm signal processing device HJ-1 on an airplane. The inspection plug is used for being connected with a CH1 bolt on a fire alarm signal processing device HJ-1 on an airplane. According to the utility model, the inspection plug simulates different ignition conditions of an engine compartment, so that not only can the good performance of the fire alarm signal processing device HJ-1 be detected, but also the fault position of the fire alarm sensor can be quickly judged, the fault position can be replaced in a targeted manner, and the maintenance efficiency is improved.

1. Name of the product in this design: Brake Drum High Temperature Alarm Sensor. 2. Purpose of this design: To monitor the temperature of the brake drum and issue an alarm signal when the temperature is too high. 3. The key design features of this product are its overall shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention discloses a goaf sealing wall poisonous and harmful gas dissipation prevention device and a construction method. The goaf sealing wall poisonous and harmful gas dissipation prevention device comprises an inclined bottom plate arranged in a goaf, a sedimentation tank is installed at the end of the inclined bottom plate, a first groove is formed in one side of the sedimentation tank, and a U-shaped stainless steel pipe is installed in the first groove. According to the goaf sealing wall toxic and harmful gas dissipation prevention device, when the end opening of the U-shaped stainless steel pipe is exposed out of the water surface, the water level alarm sensor is triggered and sends out an early warning signal, and the gate valve is connected with the monitoring substation through the controller and used for controlling the water flow switch; when a water level alarm sensor gives an alarm, a gate valve can be started through a controller and a monitoring substation to prevent water from entering a second groove, it is ensured that water in the second groove is sufficient, and the problem that the water in the second groove is reduced, so that the water in a U-shaped stainless steel pipe is reduced, and the sealing effect is poor is solved.

The utility model discloses a glass detection and alarm integrated device based on multi-sensor feedback. The glass detection and alarm integrated device comprises a concave frame, a limiting plate and detection sensors, conveying wheels are arranged in the concave frame at equal intervals, and a motor is arranged at the position, located on one side of the conveying wheels, of the side edge of the concave frame; according to the utility model, the glass is in contact with the detection plate, if a bulge is uneven, the detection plate moves upwards, the detection plate drives the vertical rod connected to the top of the detection plate and the contact plate to move upwards, and when the contact plate moves upwards to be in contact with the alarm sensor, the alarm sensor is triggered, and the alarm sensor transmits an alarm signal out; the limiting plates are located at the tops of the conveying wheels and the inner sides of the concave frames, so that when glass is conveyed, the position of the glass can be strictly limited, and deviation is prevented; the detection sensor detects that the glass is abnormal or the surface of the glass protrudes and is uneven, so that the detection plate moves upwards, and a worker is reminded of abnormal glass detection in time in a sound and vision dual mode.

The invention provides a hydraulic jacking preventer, and relates to the technical field of oil and gas field well equipment. The blowout prevention shell is formed by folding an upper blowout prevention shell body and a lower blowout prevention shell body, and the two ends of the two blowout prevention shell bodies are sleeved with end sealing covers respectively. A drilling tool penetrates through the middle of the blowout prevention shell, a shaft is arranged on an end sealing cover on the periphery of the drilling tool in a vertical outward extending mode, and the shaft located on the lower portion is embedded into a producing well. Through the hydraulic drive mechanism triggered by the alarm sensor and driven by the high-pressure oil pump, top-speed response and action of the device are achieved. After an alarm signal is received, the high-pressure oil pump can be instantly started in the forward direction, high-pressure oil is injected into the hydraulic cylinder through the oil inlet pipe, the hydraulic piston disc and the hydraulic piston rod are driven to be linearly pushed inwards, power is transmitted to the interlocking sealing mechanism without delay, and therefore sealing action is started at the initial stage of blowout, and sealing is achieved. And precious time is won for dangerous case control.

The invention discloses a telegraph pole erecting machine, belongs to the technical field of pole erecting machines, and solves the technical problem that an existing pole erecting machine is poor in intelligence. The device comprises a boarding platform, a swing mechanism, a frame and a track driving system, the boarding platform is provided with a movable arm, the movable arm is provided with a bucket rod, a plurality of all-round cameras are arranged around the boarding platform, the bottom of the bucket rod is provided with an operation auxiliary camera and a laser distance measuring sensor, and the side wall of the bucket rod is provided with a near-electricity alarm. An instability alarm sensor, a look-around monitor and an operation auxiliary video monitor are arranged in a cab of the upper vehicle platform, an ultrasonic environment detection sensor is arranged at the top of the cab, a quick change device used for being connected with an accessory is arranged at one end of the bucket rod, and a bucket oil cylinder driving the quick change device to turn up and down is arranged at the top of the bucket rod. A counterweight device is arranged at the rear end of the getting-on platform, and a central controller ECU of the getting-on platform is in signal connection with a laser distance measuring sensor, an electricity approaching alarm, an instability alarm sensor and an ultrasonic environment detection sensor.

The utility model discloses a kind of fire alarm signal system checkers, belong to fire alarm signal system inspection technical field.The checker includes main equipment box, test cable, millivolt electromotive force generation module, multi-channel switching module, resistance measurement module, display module and control module.Test cable one end connects main equipment box, the other end connects the measured fire alarm signal system;Millivolt electromotive force generation module generates the high-precision thermoelectric potential signal of analog fire alarm sensor;Multi-channel switching module switches the sensitive branch of measured fire alarm signal system;Resistance measurement module accurately measures the resistance of fire alarm sensor circuit;Display module shows detection result;Control module is electrically connected with millivolt electromotive force generation module, multi-channel switching module, resistance measurement module and display module, to coordinate each module operation.The fire alarm signal system checker provided by the utility model can be suitable for the detection of fire alarm signal system, with the characteristics of high efficiency, strong reliability, good adaptability.

This invention relates to a hydraulic leakage monitoring device and method for redundant braking systems. The device includes an active leakage diagnosis module. The active leakage diagnosis module performs active hydraulic detection to determine whether air or leakage exists in the hydraulic braking system. The device alerts the driver to safety via an instrument panel. This invention fills a gap in existing technology by using a logic control algorithm to determine whether air or leakage exists in the hydraulic braking system and alerts the driver to safety via an instrument panel, ensuring vehicle and user safety. This invention utilizes a liquid level alarm sensor to detect problems earlier and can also perform big data monitoring to predict vehicle braking risks in advance.

The utility model discloses an assembled whole prefabricated special bathroom system, including ceiling, base and side panel, the side panel of utility model discloses can realize quick installation with wall body through the load -bearing fixed buckle code, and quick splicing of side panel and base can be realized with integral base connector, and installation is convenient and fast, and the construction process is simplified, and installation efficiency is greatly improved. Furthermore, the utility model is equipped with adjustable lifting foot stand, which can adapt to the different height requirements of the bathroom system and adapt to uneven ground, ensuring that the parts in the bathroom system can be installed stably. Secondly, the utility model can additionally add a water leakage alarm sensor, and the linkage type intelligent alarm system can actively monitor the water leakage situation, and eliminate the leakage hidden danger. In addition, the utility model sets up floor drain, drainage seat and other drainage components, which can improve the drainage efficiency, have a certain degree of impurity filtering function, and can also improve the problem of drainage pipe blockage.

The invention relates to the technical field of communication cables, in particular to a star quad type communication cable with a damp monitoring and alarming function, which comprises a star quad group consisting of four insulating core wires and an insulating protective sleeve, the insulating protective sleeve is sleeved outside the four insulating core wires, one star quad group is a subunit, and the subunit is twisted according to a twist pitch to form a star quad structure; the working line positions of the four insulated core wires are called as a pair of paired wires according to square diagonal symmetry, and two diagonal wires form a call loop, namely a group of paired wires; one of the two groups of paired lines has a color A, and the other one of the two groups of paired lines has a marking line color B. The five groups of subunits totally have ten pairs of paired lines. A monitoring line is arranged outside the subunit and super-unit structures of the communication cable, and a damp sensing unit is arranged on the monitoring line to form a monitoring alarm mechanism. A monitoring line and a monitoring terminal are arranged to sense the damp condition of the communication cable, and an alarm is given in real time through an alarm sensor at a communication cable node, so that maintenance is facilitated.

1. Name of the design product: wear warning sensor sensing head. 2. Use of the design product: wear warning for disc brake. 3. Design features of the design product: in shape. 4. Picture or photograph best indicating the design features: perspective view 1.

Apparatus and methods for determining if fluid contained within a housing is leaking. A level sensor is provided for determining a measured level of fluid within the housing. A reference sensor is provided for determining a reference parameter that can be used to provide a predicted level of fluid within the housing. The measured level of fluid is compared with the predicted level of fluid to determine if it is likely fluid is leaking from the housing.

In some embodiments, a window fan has a housing mountable in a window, the housing comprising one or more fans therein and including interior and exterior sides and a top side, the top side configured to be in touch with a window panel when the window is in a closed state. An alarm sensor is disposed on the top side of the housing and configured to detect whether the window is open. A control circuitry is provided and configured to: responsive to the alarm sensor detecting that the window is in the open state, activate an alarm output device. The control circuitry may cancel an alarm upon receiving a user command from a control panel or detecting that the alarm sensor is disengaged by a sensor stopper.

This invention discloses a tilt-sensing alarm sensor, comprising: a fixed bracket having a base and a central support on the base; a sensing frame body divided into a mounting portion and a sleeve portion; a sensor being fixedly connected to the top of the central support of the fixed bracket and the inner wall of the mounting portion of the sensing frame body via connectors, such that a gap is formed between the bottom end of the sleeve portion of the sensing frame body, which is sleeved on the outside of the central support, and the base of the fixed bracket; the base of the fixed bracket is used to form a perpendicular connection with the protective medium to be measured. Based on the change in the force exerted by the protective medium in the direction of gravity, a perpendicular force is generated between the sensing frame body with the gap and the fixed bracket, and this perpendicular force is sensed by the sensor connected to both the sensing frame body and the fixed bracket. This invention improves anti-interference capability by optimizing the sensor design, thereby reducing false alarms and missed alarms.

A printing and coating line iron sheet displacement alarm device comprises two alarm sensors matched with the edges of an iron sheet, an adjusting mechanism used for adjusting the alarm sensors and a fixing frame, and the edges of the two sides of the iron sheet on a conveying belt are monitored through the alarm sensors; when the alarm sensors detect that the edges of the iron sheets exceed the straight line where the alarm sensors are located, the adjusting mechanisms are symmetrically installed on the fixing frame in pairs, the alarm sensors are installed on the adjusting mechanisms, and the distance between the alarm sensors is adjusted through the adjusting mechanisms so that the adjacent alarm sensors can be matched with the two sides of the iron sheets of different sizes. Therefore, the positions of the iron sheets with different sizes can be conveniently monitored, and the application range of the alarm device is widened.

1. Name of the product in this design: Brake disc high temperature alarm sensor. 2. Purpose of this design: To monitor the temperature of the brake disc and issue an alarm signal when the temperature is too high. 3. The key design features of this product are its overall shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.

The utility model discloses an online cleaning system for a numerical control gantry boring and milling machine. The online cleaning system comprises a machining platform, a spindle box, an X / Y guide rail, a rotary electromagnetic scrap suction roller, a multispectral detection module and a closed-loop recovery system. The rotary electromagnetic scrap suction roller is installed on the side face of the spindle box through an installation frame at the dip angle of 15 degrees, a composite structure of a neodymium iron boron N52 permanent magnet and a 2.5 mm < 2 > excitation coil is adopted, the power ratio is 1: 1.2-1.5, and a centrifugal scrap throwing disc with a flow guide groove is arranged at the end of the rotary electromagnetic scrap suction roller. The multispectral detection module comprises a 3-5 [mu] m infrared sensor and a three-way polarization camera, and debris thickness detection is realized through a deep learning algorithm. The chip collecting groove is connected with the chip collecting box through a negative pressure pipeline, and a compression device with the compression ratio larger than or equal to 3: 1 and a full material alarm sensor are arranged in the box. Automatic adsorption, detection and recovery of chippings in the machining process are achieved, the cleaning efficiency reaches 98% or above, and the problems that a traditional cleaning mode is low in efficiency, machining is interfered and the like are solved.

The utility model belongs to the field of metal dust treatment, and relates to a dust alarm sensor, which comprises a probe and at least one binding post group arranged at one end of the probe, and each binding post group comprises two binding posts capable of being connected with an external power supply; the probe is provided with a conductive coating which can form an electric loop with the two binding posts. The dust alarm sensor provided by the utility model is low in cost and convenient to maintain.