103 results about "Alarm sensor" patented technology

The invention relates to the technical field of alarm devices, and discloses a building monitoring management system based on the Internet of Things, which is characterized in that when an alarm sensor generates an early warning signal, a side evidence confirmation module captures power grid harmonic data and compares the power grid harmonic data with a benign equipment feature library, and whether to trigger an alarm or not is determined according to a matching result; according to the invention, through a time sequence mutual identification mechanism of power grid harmonic waves and alarm signals, real fire behavior and equipment operation interference are fundamentally distinguished, and the alarm accuracy is significantly improved; meanwhile, passive positioning is achieved through the multi-branch harmonic intensity difference, the error suppression risk in a large building is eliminated, the equipment health state is monitored through the harmonic entropy change trend, and a complete safety closed loop from early warning to prevention is formed.

The invention belongs to the technical field of liquid level alarm, and discloses a liquid level alarm sensor with a self-checking device, which comprises a liquid level display, the bottom of the liquid level display is fixedly connected with a first guide rod through a mounting plate, and the bottom of the first guide rod is detachably connected with a second guide rod. Through cooperation of structures such as a cap-shaped filter screen and a hollowed-out baffle, the service life of the self-checking device is prolonged, through the design of double cavities and double pumps, the floating cavity and the lower liquid storage cavity are divided, the micro liquid pump and the micro vacuum pump are matched, during self-checking, through liquid suction and liquid drainage operation, the initial value and the change range of the numerical value of the liquid level displayer are compared, and the self-checking efficiency is improved. By means of the technical scheme, the common shell damage and clamping stagnation problems can be basically judged, the self-inspection efficiency of maintenance personnel is improved, in the liquid suction and drainage process, particulate matter or sticky liquid can be contained at the top through the cap-shaped filter screen, the peripheral contact area is effectively increased, and during liquid drainage, the flexible net bag in the middle of the cap-shaped filter screen turns over reversely, and the mesh blockage situation is effectively reduced.

The invention provides a wireless combustible gas alarm system and method, and relates to the technical field of combustible gas alarm, the system comprises a sensor node, a sink node and an alarm terminal, the sensor node collects gas concentration in real time, and after temperature and gas pressure compensation and Kalman filtering processing, the gas concentration is sent to the sink node; the 2.4 GHz / 433MHz dual-band wireless module is used for sending a first-level early warning signal or a second-level alarm signal; the aggregation node fuses multi-node data and optimizes signal transmission stability, and the alarm terminal triggers sound-light alarm according to signals and sends an alarm short message containing positioning information. According to the method, hierarchical alarm logic is adopted, multi-node linkage triggering of high-level alarm in the same area is supported, sensor nodes have dormancy self-inspection and fault alarm functions, the whole system adapts to a complex industrial environment, the monitoring precision is improved through an environment compensation and filtering algorithm, signal reliability is enhanced through dual-band communication, and the system reliability is improved. Differentiated emergency response is achieved through a multi-stage alarm mechanism, and long-term stable operation is guaranteed through the low-power-consumption self-maintenance design.

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 invention discloses a low-power infrared gas detection alarm sensor, comprising a gas chamber housing and a gas chamber bottom cover and a PCB circuit board that are mutually covered to form a gas sampling chamber; an infrared light source and an infrared gas sensor are arranged on the PCB circuit board; an air inlet and outlet are opened on the top surface of the gas chamber housing, and a microporous filter membrane is arranged on the air inlet and outlet; the microporous filter membrane is pressed on the air inlet and outlet through a light shielding pressing plate, and a light shielding membrane is also pressed between the light shielding pressing plate and the microporous filter membrane; a shielding cover is fixedly installed on the bottom of the gas chamber housing, and the shielding cover blocks the gas chamber bottom cover and the PCB circuit board in the gas chamber housing; an infrared photosensitive diode is arranged on the PCB circuit board; a reflection window is opened on the gas chamber bottom cover, and an arc-shaped reflection surface is formed in the gas chamber housing. The invention uses 2 to 3 batteries to work, has low power consumption and long service life, can be simply applied to gas detection alarms that have an absorption effect outside the red line and directly use a digital output interface as a gas sensor.

The invention provides a trace element detection instrument. The trace element detection instrument comprises a foldable and turnover shell; the liquid supply mechanism comprises a test tube with a peristaltic pump, and the test tube is provided with a replaceable filter membrane, a liquid level alarm sensor and a modular fixing seat; the reaction tank replacement mechanism realizes elastic installation of the reaction tank through a first elastic assembly at the tail part of the six-way valve; the optical measurement module detects an excitation light signal through a laser transmitter, a probe sensor and a photoelectric sensor and converts the excitation light signal into concentration data; the six-way valve is connected with the flow velocity measurement module and calculates the liquid flow velocity through the glass tube and the upper and lower sensors; waste liquid is discharged into a middle waste liquid pool through a waste liquid head linked with the pressing block. Through the foldable shell, the elastic docking mechanism, low residual fluid control, real-time flow rate monitoring and automatic waste liquid treatment, high precision, high efficiency and high adaptability of the detection process are achieved, and the device is suitable for multi-scene trace element analysis such as clinical detection and environment monitoring.

The utility model provides an automatic test tool for an air filter blocking alarm sensor, which comprises a power supply, a vacuum pump, an air pressure regulating valve, a time relay, a counting relay and the air filter blocking alarm sensor, the time relay and the counting relay are electrically connected with the power supply, and the counting relay, the time relay and the vacuum pump are electrically connected in pairs respectively. An air inlet of the vacuum pump is connected with an air pressure regulating valve through an air delivery pipe; the air pressure regulating valve is connected with an air filter blockage alarm sensor through an air delivery pipe; the time relay controls the opening and closing time of the vacuum pump, the counting relay records the power-on and power-off times of the vacuum pump, and the counting relay cuts off the power of the time relay and the vacuum pump after the cycle of the preset times is reached, thereby completing the whole test process, and achieving the automatic product durability test. The vacuum holding time, the pressure relief holding time and the reciprocating operation frequency can be controlled, and accurate testing is achieved.

The utility model discloses a pipe piling detection device and a heat shrink tube conveying system, the pipe piling detection device comprises a support, a moving block, a swing assembly and an alarm sensor, one side of the support is provided with a support member, the moving block is slidably arranged on the support member, the swing assembly is rotatably arranged on the moving block, and the alarm sensor is arranged on the support member. The swing assembly correspondingly extends to the moving path of the pipe, and the alarm sensor is arranged on the support and correspondingly faces the swing assembly so that the alarm sensor can send out an alarm signal when the swing assembly deviates from the original position. According to the pipe expanding and conveying device, the pipe stacking phenomenon possibly occurring in the pipe expanding and conveying process is detected, and an alarm is given immediately after the pipe stacking phenomenon is detected, so that field staff are reminded to process in time, the number of waste products is reduced, and the phenomenon of material waste is effectively avoided; and smooth operation of the whole process is effectively ensured.

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 relates to a recording and protecting device for variable-pitch super-capacitor testing equipment. The recording and protecting device comprises a direct-current power supply (1), a power supply air switch (SB1), a PLC (Programmable Logic Controller) (4), a first smoke alarm sensor (9), a second smoke alarm sensor (10), a first contactor (KM1), a second contactor (KM2) and a temperature sensor (15). According to the utility model, the total duration of the service life test of the super capacitor and the temperature in the oven can be monitored in real time, and the damage of the super capacitor in the test process caused by overlong floating charge time or overhigh temperature is avoided. Meanwhile, whether gas production, liquid leakage and explosion occur in the service life test of the super capacitor can be judged according to the smoke concentration in the ambient air, and if problems are found, power supply of the drying oven and the charger can be cut off in time to prevent further deterioration of accidents.

The utility model discloses a fuel oil distribution connector which comprises a distribution block body, and a fuel oil return channel, a leakage oil return channel and a fuel oil inlet channel are sequentially arranged in the distribution block body from top to bottom. A fuel oil leakage alarm sensor is installed on the leakage oil return channel, a leakage oil inlet and a leakage oil outlet are formed in the leakage oil return channel, the height of the leakage oil inlet is smaller than that of the leakage oil outlet, and the height of the leakage oil outlet is larger than that of a middle electrode of the fuel oil leakage alarm sensor. According to the fuel oil leakage alarm sensor, a total oil inlet and return channel is integrated, the leakage alarm and leakage functions are achieved, and meanwhile the problem that when the fuel oil leakage alarm sensor is used in a transversely-arranged state, due to the fact that the fuel oil leakage amount is small, and the liquid level does not reach an intermediate electrode, alarming cannot be conducted is solved.

The invention discloses a landslide alarm sensor and an alarm device. The sensor comprises a fixed metal contact which is arranged on an insulating column as a first conductor and is connected with one pole of an alarm circuit; the movable metal contact is mounted at the front end of the insulating spring piece, serves as a second conductor and is connected with the other pole of the alarm circuit; the insulating heavy ball is placed in a limiting groove in the insulating plate, so that the insulating spring piece deforms, the fixed metal contact and the movable metal contact are separated, and the alarm circuit is switched off; when the insulating heavy ball rolls down, the insulating spring piece recovers deformation, the two metal contacts are in contact, and the alarm circuit is connected. The landslide alarm device comprises the landslide alarm sensor, a device shell, an anti-interference module and a communication module. Based on the gravity principle, the landslide alarm device is reliable in working principle, simple in structure and good in sensitivity, and the landslide timely alarm function is achieved through the simple physical principle and the photoelectric technology.

The invention provides an electric power communication data network field fault patrol device, and relates to the technical field of electric power communication, the electric power communication data network field fault patrol device comprises a traction rope, a mounting plate and a supporting plate, the left end of the mounting plate is fixedly connected with a fixing assembly, the bottom end of the supporting plate is fixedly provided with a detection assembly, and one side of the top end of the supporting plate is fixedly provided with a supporting rod. A module assembly is fixedly installed on the other side of the top end of the supporting plate, a fixing block is fixedly connected to the top end of the supporting rod, a solar panel is fixedly connected to the top end of the fixing block, and two alarm sensors are fixedly connected to the front side and the rear side of the top end of the supporting plate at equal intervals. The fault patrol device is installed at a deployed network key point through the installation plate and the fixing assembly, the traction rope ensures the installation stability of the device, the detection assembly and the module assembly collect and process the operation information of an electric power communication data network in real time, the solar panel continuously supplies power to the device, and normal operation of the fault patrol device is ensured.

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 invention relates to a fault alarm sensor with an adjustable fault current threshold and a panel type fault indicator. The fault alarm sensor adopts a triode as an alarm switch element, the output of a current transformer is connected to an alarm signal circuit and is simultaneously used as a working power supply and a detection signal, and the base electrode of the triode is provided with a pull-down resistor branch capable of passing through the resistance value of a dial switch, so that the dial switch can be adjusted to set and adjust a fault current threshold. Light emitted by a light emitting diode in the alarm signal circuit is an alarm signal. The panel type fault indicator is provided with a panel host and the sensors, and the panel host can be used for setting and adjusting the short-circuit fault minimum discrimination time, the grounding fault minimum discrimination time and the fault reset time. The panel type fault indicator realizes electrical isolation of the sensor and the host, is simple in structure and convenient to use, and can be mainly used for current fault monitoring of power cables and related equipment.

The invention discloses an automatic alarm sensor for engine oil pressure detection, which comprises a main body, the main body comprises a sensor shell, and the two ends of the sensor shell are respectively provided with an opening for inputting / outputting oil; the oil pressure detector is arranged in the main body and is used for detecting the fluctuation of the input / output oil pressure at the two ends; the selector is used for selectively starting the oil pressure detector, one end of the sensor shell is provided with a first connector, and the end, away from the first connector, of the sensor shell is provided with a second connector. The oil pressure detector is arranged in the main body, and when oil is input into the two ends of the oil pressure detector and the pressure of the oil is detected, the change of an electric signal of the pressure of the oil can be checked through the contact assembly, the conduction cylinder, the induction assembly and the Wheatstone resistor in the detector; and the two ends can be used as input / output ends for conduction detection in the inspection process.

The present invention discloses a revolvable multifunctional fire escape pipe gallery for temporary buildings and a method for using the same, and relates to the field of building technology. The revolvable multifunctional fire escape pipe gallery for temporary buildings includes a fire alarm response system, a fire escape pipe gallery system, and a protective fence system. The fire alarm system includes a fire alarm sensor, a sensor line, and a jack alarm reactor. The revolvable multifunctional fire escape pipe gallery for temporary buildings and a method for using the same can be used in a revolving state, reduce costs and increase efficiency, and combine the pipe gallery with an evacuation and escape device into one. In normal times, the pipe gallery characteristics are used to arrange the pipes and used as a ground road. In emergencies, the evacuation and escape device can function. One thing has multiple functions, which greatly improves the energy efficiency of the equipment. The various components are linked through a fire sensing device and automatically triggered in an emergency, avoiding the time loss caused by manual operation and increasing the evacuation time.

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.

The invention discloses a pontoon liquid level measurement and valve control system, comprising a ballast tank and a ballast pump cabin. A ballast pump is installed in the ballast pump cabin, and the ballast pump is connected to each ballast tank through a pipeline system. A liquid level transmitter is arranged in the ballast tank, and the pontoon is provided with four-corner draft sensors and a bilge flooding alarm sensor; the pipeline system is provided with a clamp-type electric remote-controlled butterfly valve corresponding to each ballast tank, and the bilge water suction port and the liquid level transmitter are respectively arranged on the left and right sides of the ballast pump cabin; the invention can specifically monitor, remotely sense, alarm, record and other functions, and its communication mode adopts a wired or wireless mode. When the pontoon needs to draft, after the data processing console issues a draft adjustment command, the butterfly valve is controlled to control the working state of the ballast pump to control the pontoon draft to a predetermined position.

Fastening element for attaching alarm components to a vehicle steering wheel or similar mobile objects, characterized in that - an inwardly curved basic structure (number 1 of the drawing) made of plastic is provided - wherein a non-slip foam pad (item 2 of the drawing) is attached to the inside of the basic structure and - screw holes for connecting the holder to the alarm component are provided on the outside of the base structure (item 3 of the drawing) and - which has a central recess (item 4 of the drawing) for the insertion of a Velcro strap / cable tie, which in turn enables the variable connection of the holder to vehicle steering wheels or other mobile objects.

The invention relates to the technical field of radio measurement, in particular to a fire dynamic sensing and processing system for a construction site of a dual-purpose car washer, so as to achieve the purpose that in the process that the car washer sprays at the positions of alarm sensors issuing fire alarms, the fire alarms are sent out according to the distance between each alarm sensor and each car washer; determining a to-be-supported car washer which does not start spraying and corresponds to each alarm sensor; determining a current threat index according to the difference between the overall trend of the fire diffusion rate at the position of the alarm sensor which newly issues the fire alarm currently and the overall trend of the fire diffusion rate at the position of each alarm sensor which has issued the fire alarm historically; and respectively selecting the to-be-supported car washing machine conforming to the proportion of the threat index from the to-be-supported car washing machines of the alarm sensors to spray to the positions of the corresponding alarm sensors. The car washing machine is dynamically dispatched for support along with fire spreading, and therefore the fire control effect is improved.

The utility model relates to the technical field of harmful gas induction sensors, and discloses a harmful gas induction alarm device with a protection structure, which comprises a base, and is characterized in that the top of the base is provided with a harmful gas induction alarm sensor and a fixed protection mechanism, and the fixed protection mechanism is arranged on the top of the base. An external protection mechanism is arranged at the top of the fixed protection mechanism, the harmful gas induction alarm sensor is fixed to the base through the fixed protection mechanism, the harmful gas induction alarm sensor is prevented from falling off to be damaged after being used for a long time, the overall fixing effect is good, and the harmful gas induction alarm sensor cannot fall off to be damaged; when the device falls off, the device body is protected through the first external protection ring and the rubber protection ring, the device is prevented from falling off and being damaged, the impact force generated by falling is reduced through the damping telescopic column and the buffer spring arranged between the rubber protection ring and the second external protection ring, and the safety of the device is further guaranteed.

The invention belongs to the technical field of aviation fire alarm sensor sealant coating equipment, and relates to a special automatic gluing device for an airplane fire alarm sensor. According to the invention, each part is miniaturized, so that the coating operation can be conveniently carried out in a narrow environment in a cabin, the screw pump can improve the coating precision, and the clamping cylinder is adopted for supplying glue, so that the device is suitable for aviation sealants with different packages, different viscosities and different properties. According to the sealant coating device, intelligent control over the sealant discharging mechanism is achieved through the touch screen and the PLC all-in-one machine, and equipment parameters such as the sealant discharging amount, the sealant discharging speed and the sealant discharging time can be accurately controlled, so that the overall sealant coating quality, coating precision and sealant dosage control are improved, and workers can conveniently conduct coating work. Under the same conditions, the gluing time of the device special for automatic gluing is 3 minutes, the time of traditional manual non-automatic gluing is 34 minutes, and the efficiency is improved by 91% on year-on-year basis.

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.

The invention relates to a hydraulic leakage monitoring device and method for a redundant braking system. The device comprises an active leakage diagnosis module. Active hydraulic detection is carried out through an active leakage diagnosis module, and whether the air or leakage condition exists in the hydraulic braking system or not is judged; a driver is reminded to pay attention to safety through an instrument; the blank in the prior art is filled, whether the hydraulic braking system has the air or leakage condition or not is judged through a logic control algorithm, a driver is reminded to pay attention to safety through an instrument, and the safety of a vehicle and a user is guaranteed; by means of the liquid level alarm sensor, problems can be found in advance, meanwhile, big data monitoring can be conducted, and the vehicle braking risk can be judged in advance.

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.