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2198 results about "Home use" patented technology

Household camera imaging quality detection method and system

The invention relates to the field of image signal processing, in particular to a household camera imaging quality detection method and system. Comprising the following steps: acquiring a to-be-detected image sequence shot by a camera in a preset scene; carrying out regional preprocessing on the to-be-detected image sequence; extracting motion feature parameters of a dynamic target area and static feature parameters of a static background area in the preprocessed to-be-detected image sequence; inputting the motion characteristic parameters and the static characteristic parameters into a preset imaging quality evaluation model, and outputting a comprehensive quality score; and obtaining an imaging quality grade of the camera based on a comparison result of the comprehensive quality score and a preset threshold value. According to the invention, by constructing the preset scene including the dynamic target area and the static background area, the composite environment of the household scene is accurately simulated; meanwhile, illumination gradient change control is introduced, a typical household illumination range is covered, and the problem of detection distortion caused by a single scene in an existing method is solved.
Owner:ZHUHAI XINCHUANG PRECISION MFG CO LTD

Home monitoring method and system based on multi-agent large model

The invention discloses a home monitoring method and system based on a multi-agent large model, the multi-agent large model comprises a central large model and agents, and the central large model is used for scheduling at least one agent to execute monitoring, analysis and alarm tasks; the method comprises the following steps: reading video stream data of a household camera in real time, and preprocessing source data to obtain unified video format data; and inputting the processed video data into the multi-agent large model, distributing a task to at least one agent by the central large model, and executing corresponding monitoring, analysis and alarm operations by the at least one agent according to the task. By performing uniform format processing on real-time read camera video streams, the accuracy of system data is ensured, and monitoring identification and intelligent alarm of abnormal conditions in a home environment are realized through a multi-agent collaborative decision-making mechanism in combination with intelligent analysis and reasoning capabilities of a large language model. And the reliability, the intelligence, the user experience and the like of the home safety monitoring system are remarkably improved.
Owner:SOUTH CHINA UNIV OF TECH

Intelligent planning configuration management system for household energy storage system

The invention relates to the technical field of energy storage and utilization, in particular to an intelligent planning configuration management system for a household energy storage system, which comprises a data acquisition and transmission unit, a data analysis and processing unit and a decision execution unit, the data acquisition and transmission unit acquires and transmits related data of a battery and cooling liquid through a sensor and a thermal imager, and the data analysis and processing unit preprocesses, fuses and screens the data by using a denoising algorithm based on quantum noise cancellation and a multi-physical field data fusion algorithm based on holographic entanglement. A thermal health factor is calculated to evaluate the thermal health state of the battery, meanwhile, model predictive control and a multi-stage early warning algorithm are used for optimizing parameters of a thermal management system and early warning thermal faults of the battery, and a decision execution unit controls a coolant pump and regulates the thermal state of the battery according to the optimized parameters, so that the problem of inaccurate data processing of an existing household energy storage system is effectively solved. The safety and stability of the system are improved, and the service life of the battery is prolonged.
Owner:NANJING SIMOWEI ENERGY SAVING TECHNOLOGY CO LTD

Household equipment intelligent fault early warning and after-sales optimization system based on multi-sensor fusion and wireless transmission

The invention relates to a household equipment intelligent fault early warning and after-sales optimization system based on multi-sensor fusion and wireless transmission, which comprises a sensing layer, a transmission layer, a cloud intelligent layer and an application layer, and is characterized in that the sensing layer comprises a heterogeneous sensor cluster and an edge computing node, and the heterogeneous sensor cluster deploys a multi-dimensional sensor; and mechanical, electrical and environmental parameters are covered. Through a physical model and data-driven double-engine architecture, a flexible sensing technology and a decentralized service network, full-chain intelligent reconstruction from fault early warning to after-sales service is realized, and analyzed data is timely and stably transmitted back to an after-sales service center or a specified monitoring platform. Through deep analysis and processing of the sensor data, a scientific fault prediction model can be established, and the model can be utilized to accurately predict possible faults of the equipment and perform early warning before the faults occur, so that a user can know potential problems of the equipment in advance and take corresponding measures in time.
Owner:王毅千

Clean storage system for household breathing machine

The utility model discloses a clean storage system for a household breathing machine. The machine body is provided with a breathing machine placing area, a storage device, an air purification system and a display control component, an air outlet is at least formed in the breathing machine placing area or the part, close to the breathing machine placing area, of the machine body, the storage device is provided with a storage chamber, an exhaust port and a storage port capable of being opened and closed, and the storage chamber is communicated with an air supply device. The air purification system is provided with a fan, an air purification device, an air outlet and an air inlet, an airflow channel in the machine body in the air outlet direction of the air purification device is a clean air area, the air outlet communicates with the airflow channel, the breathing machine containing area forms the clean air area, and the air supply device sucks clean air. The household breathing machine platform is provided with a special platform space for placing various types of household breathing machines, has an air source filtering and purifying function, and has the advantages that accessories / parts of the household breathing machines can be cleanly accommodated and stored, indoor environment air can be purified, and the like.
Owner:HUNAN TAIYANGLONG MEDICAL TECH

Systems and methods for energy distribution control using a distributed energy resource management system

The systems and methods provide techniques for a distributed energy resource management system (DERMS). The system can optimize energy distribution by leveraging Distributed Energy Resources (DERs) (such as thermostats for HVAC systems, electric vehicle (EV) chargers, and home battery storage) by shifting energy among devices and home. During peak demand, the VPP can minimize the cost to the company, reduce demand on the grid, and ultimately reduce long-term consumer costs. The system can utilize home sensors to determine a state of occupancy (such as a home is occupied, unoccupied, or the residents are on vacation). The system can consider a desired comfort level. The various sources of data (e.g., energy data, cost data, and home sensor data) can be used to manage energy distribution in a VPP and generate demand response events or other instructions for energy usage based on real-time occupancy data.
Owner:VIVINT LLC

Clean storage system for household breathing machine

The invention discloses a clean storage system for a household breathing machine. The machine body is provided with a breathing machine placing area, a storage device, an air purification system and a display control component, an air outlet is at least formed in the breathing machine placing area or the part, close to the breathing machine placing area, of the machine body, the storage device is provided with a storage chamber, an exhaust port and a storage port capable of being opened and closed, and the storage chamber is communicated with an air supply device. The air purification system is provided with a fan, an air purification device, an air outlet and an air inlet, an airflow channel in the machine body in the air outlet direction of the air purification device is a clean air area, the air outlet communicates with the airflow channel, the breathing machine containing area forms the clean air area, and the air supply device sucks clean air. The household breathing machine platform has a special platform space for placing various types of household breathing machines, has an air source filtering and purifying function, and has the advantages that accessories / parts of the household breathing machines can be cleanly stored, indoor environment air can be purified, and the like.
Owner:HUNAN TAIYANGLONG MEDICAL TECH

Semantic processing system and method for home elevator intelligent customer service

The invention relates to the technical field of semantic processing, and discloses a semantic processing system and method for home elevator intelligent customer service, and the system comprises a data collection module, a semantic processing module, a response generation and optimization module, and a communication and log module. The method comprises the steps of collecting natural language request information input by a user through voice, performing semantic analysis and intention recognition on preprocessed information based on a deep learning model, and synchronously recording an interaction log of a whole link according to an intention recognition result and the emergency degree and priority of optimized response content. In order to solve the problems that a traditional keyword matching system is poor in semantic comprehension ability and prone to misjudgment of user intentions, the context and real intentions of natural language requests can be deeply understood by introducing a semantic analysis model based on deep learning and combining a confidence degree evaluation mechanism, and when the system recognizes the low confidence degree condition, the user intentions can be accurately judged. And multiple rounds of clear conversations can be automatically triggered or interaction channels can be switched.
Owner:SUZHOU FRANZ INTELLIGENT ELEVATOR CO LTD

Household heat supply method and system capable of conveniently adjusting temperature

The invention provides a household heat supply method and system facilitating temperature adjustment. The household heat supply method comprises the following steps that the environment temperature of each to-be-heated area in a to-be-heated room is obtained; the actual heat of each corresponding to-be-heated area is adjusted by using the environment temperature and the preset target temperature of each to-be-heated area; compared with a traditional constant-temperature heat supply system, through refined temperature management, the user experience is improved, the service life of heat supply equipment is prolonged, and due to the fact that the system does not need continuous full-load operation and is intelligently adjusted according to actual requirements, mechanical abrasion and thermal stress of the equipment are reduced.
Owner:EAST HAILAER POWER PLANT OF HULUNBEIER ANTAI THERMAL POWER CO LTD +2

Household intelligent robot for alkene moxibustion

The invention discloses a household graphene moxibustion intelligent robot which comprises a robot body, a mechanical arm, a graphene heating module, a main control module and an LED phototherapy module. The device has the beneficial effects that 1, mechanization, automation and digitization of alkene moxibustion are realized; 2, the traditional Chinese medicine suspended moxibustion manipulation treatment is accurately simulated, a standardized treatment scheme is realized, the manipulation precision of a professional physician can be copied, and the burn risk of traditional moxibustion is completely eradicated; voice interaction is supported, acupoint combination is intelligently matched, the detachable graphene module design is adopted, independent replacement can be achieved when the thermal efficiency attenuation exceeds 5%, and safety and comfort are improved; 4, the smokeless and dustless design thoroughly solves the pollution problem of traditional moxibustion, and the application scene is expanded to closed spaces such as bedrooms and offices; and fifthly, the maintenance cost is reduced through the modular design, and production and maintenance are easy.
Owner:SHENZHEN AOXIN DATA ALGORITHM INNOVATION INSTITUTE

Household cleaning and disinfecting machine

The utility model relates to the technical field of household sterilizing machines, particularly provides a household cleaning and sterilizing machine, and aims to solve the problem of poor sealing between a cover body of the household cleaning and sterilizing machine and the sterilizing machine in the prior art. The utility model comprises: a base provided with a water tank; the cover body is arranged on the base in a covering mode, and a cleaning cavity is defined by the cover body and the water tank; an inserting part is arranged at the bottom of the cover body, and a step is arranged at the joint of the inserting part and the cover body; when the cover body covers the base, the inserting part is inserted into the inner wall of the water tank, and the step abuts against the upper edge of the base. The sealing structure between the cover body and the base is simple, and the manufacturing process is simple and convenient. The opening of the gap between the cover body and the base faces downwards and is close to the bottom of the water tank, so that high-pressure water flow sprayed out of the water tank flows back into the water tank along the inner wall of the cover body and does not flow into the gap between the cover body and the base or the base, and good sealing performance between the cover body and the base is guaranteed.
Owner:ZHEJIANG TIANXI KITCHEN APPLIANCE CO LTD

Household combined vegetable cutter

The utility model relates to the technical field of household appliances, in particular to a household combined vegetable cutter, which is characterized in that a first connecting component is arranged between a vegetable cutter main body and a driving module, so that the driving module can be detachably connected with a vegetable cutter shell, and the driving module is in transmission connection with a vegetable cutting module through an output end; through the design of the first connecting assembly, the driving module and the vegetable cutter shell can be rapidly disassembled and combined, a user can conveniently clean, maintain or replace the modules of the household combined vegetable cutter, due to the detachable design, the user can easily replace a fault part without repairing the whole device, the maintenance cost is reduced, the maintenance time is shortened, and the user experience is improved. And by reducing the downtime and providing more function options, the use experience of the user is remarkably improved.
Owner:GUANG DONG GE LU HUA JIA JU YOU XIAN GONG SI

Ageing-suitable transformation recommendation method and system, electronic equipment and storage medium

The invention relates to an aging-suitable transformation recommendation method and system, electronic equipment and a storage medium, and relates to the technical field of smart pension, and the transformation recommendation method comprises the steps: obtaining the temperature and humidity in a living room and a living room state diagram, and collecting the appearance form, the placement position, the home use frequency and the home use duration of home articles displayed in the living room; judging the home damage level by adopting a home full-life monitoring model; acquiring physiological index data of the supervised object, and generating a home life table; according to the household damage level and the living room state diagram, generating aging-suitable transformation reminding information, determining household article transformation requirements of the supervision object in combination with a household life table, and sending the household article transformation requirements to the supervision subject; generating a household position adjustment graph based on the household article transformation demand and the placement position; generating a novel home recommendation table according to the home article transformation demand and the appearance form in combination with the home market data; the living safety and life quality of the supervised object are improved, and the evaluation effectiveness of the aging degree of the household articles is improved.
Owner:SUZHOU PUKANG SMART PENSION IND TECH CO LTD +1

Double-cutter-group reversing device and meat cutter comprising same

According to the double-cutter-set reversing device and the meat cutter comprising the same, the double-cutter-set reversing device drives the two cutter sets which are vertically and crosswise stacked to rotate and cut at the same time through a single power source, and the vertical height difference and the horizontal position difference between driven wheels of the two cutter sets and the angle difference formed by cutter shaft crossing can be compensated through the structural design of the double-cutter-set reversing device. The meat cutting machine is based on the same reversing device core design and has two implementation modes: a commercial type adopts a quick-release separation type knife group and a meat grinder head adaptive structure, is compatible with various types of meat grinder heads, and switches driving modes through a clutch device so as to meet diversified meat processing requirements; a fixed cutter set and a waterproof pure mechanical transmission structure are adopted for household use, a hand crank is configured to serve as a driving device, the whole machine is allowed to be directly flushed and soaked, and the problems of cleaning and space occupation in a small kitchen scene are solved.
Owner:王元杰

Ergonomic Support Cushion with Tailbone Relief and Variable Density Memory Foam

PendingUS20260060431A1StoolsChairsCar seatHome use
An ergonomic support cushion designed to alleviate discomfort from prolonged sitting. The cushion features a contoured shape that supports the spine's natural curvature and includes a central cut-out to relieve tailbone pressure, ideal for individuals with coccyx pain or those recovering from related surgery or injury. It is constructed from high-density memory foam with a density range of 52% to 56%, which adapts to the user's body shape, providing customized support that enhances comfort and reduces pressure points. The cushion also includes a non-slip base to ensure it stays securely in position on various seating surfaces. Its lightweight, portable nature allows it to be used in different environments, such as office chairs, car seats, wheelchairs, and home seating. This innovation provides a comprehensive solution for those needing improved comfort and support during extended periods of sitting, promoting better posture and reducing strain on the lower back.
Owner:PADILLA IVAN

Actuator mechanism for an item of household equipment

Embodiments of the invention provide a door opener for an electrical appliance of household equipment. The door opener comprises an electric motor and a pusher drivable by means of the electric motor for pressing co-operation with the door of the electrical appliance. A power transmission mechanism is provided between the electric motor and the pusher, which is capable of ensuring a variable effective velocity of the pusher at the same rotational frequency of the electric motor. Certain embodiments provide for a multi-stage rack and pinion gear for this purpose, which is formed by a gear rim and a toothed rack, which can transmit the driving force of the electric motor to the pusher via various gear pairings that can be brought alternately into meshing engagement with one another.
Owner:EMZ HANAUER GMBH & CO KGAA

Home compostable colour masterbatch

PCT designated stage expiredWO2025137760A1Home useMasterbatch
A home compostable colour masterbatch and a process for making the same are provided. The colour masterbatch includes a colorant and an amphiphilic biodegradable polymer matrix selected from the group consisting of PBAT-PEG, PHA-PEG, PCL-PEG, TPS-PHA, PBSA- PEG, TPS-PBAT, and TPS-PBS. The colour masterbatch does not contain polylactic acid. The colorant and the amphiphilic biodegradable polymer matrix to form a mixture. The mixture is heated and torqued at a processing temperature sufficient to melt the amphiphilic biodegradable polymer matrix to make the colour masterbatch.
Owner:CTK RES & DEV CANADA LTD

Household Schuss gymnastics exercise mirror

The invention relates to the field of Schuss gymnastic exercise mirrors, and discloses a household Schuss gymnastic exercise mirror which comprises a front mirror and a back mirror, a supporting mechanism for supporting is mounted on the outer side of the front mirror, and a height adjusting mechanism for adjusting the height of the back mirror is arranged on the outer side of the front mirror. An angle adjusting mechanism used for adjusting the angle of the back mirror is arranged on the outer side of the back mirror, the supporting mechanism comprises a support and a counterweight assembly, a connecting base with a self-locking function is arranged on the outer side of the support and used for installing the front mirror, the counterweight assembly comprises a balancing weight, and the balancing weight is arranged at the bottom end of the support and used for adjusting the angle of the back mirror. The side is far away from the front mirror. The rousse gymnastic exercise machine is small in occupied area and suitable for the home environment, the front mirror and the back mirror can be freely adjusted, it is ensured that the state is stable in the using process, a user can conduct rousse gymnastic exercise in an omnibearing cooperation mode, clearly observe body actions and timely correct postures, and the exercise effect is greatly guaranteed.
Owner:SHUGUANG HOSPITAL AFFILIATED WITH SHANGHAI UNIV OF T C M

Sofa

A sofa belonging to a technical field of household sofas and being simple in assembly and disassembly and suitable for small dwelling-size apartment is provided. The sofa includes a bottom box, two groups of wing-type armrests, a backrest, two groups of seat cushions, and two groups of backrest cushions. The two groups of the wing-type armrests expand outward and are symmetrically connected to side walls of the bottom box. The backrest is connected to the two groups of the wing-type armrests. The two groups of the seat cushions are disposed on the bottom box. The two groups of the backrest cushions abut against the backrest. Bottom sides of the two groups of the backrest cushions abut against upper surfaces of the two groups of the seat cushions.
Owner:GUANGDONG SWEETNIGHT INNOVATION TECHNOLOGY CO LTD

Household elevator with modular structure platform

The utility model relates to the technical field of platform household elevators, in particular to a platform household elevator of a modular structure. Comprising a bottom hoistway frame module, a middle hoistway frame module and a top hoistway frame module. The number of the bottom hoistway frame module and the number of the top hoistway frame module are each one. The number of the middle shaft frame modules is set to be larger than or equal to 0 according to the actual elevator running height, and the effects that elevator installation can be rapidly achieved, and therefore the installation efficiency and quality are improved are achieved.
Owner:SUZHOU SAIANG ELEVATOR TECHNOLOGY CO LTD

Household equipment control method, household equipment and storage medium

The invention discloses a household equipment control method, household equipment and a storage medium, and relates to the technical field of household equipment, the disclosed household equipment control method comprises the following steps: pre-processing a received voice signal to obtain an audio frame sequence; processing the audio frame sequence through a voice semantic joint coding model to obtain a voice semantic feature vector, and processing the audio frame sequence through a pinyin semantic embedding pre-training model to obtain a pinyin semantic feature vector; performing intention recognition on the voice signal based on the voice semantic feature vector and the pinyin semantic feature vector, and determining a control instruction of the household equipment; and controlling the household equipment to operate by adopting the control instruction. The technical problem that the control effect of the household equipment becomes poor due to the fact that the recognition precision of the voice signal for controlling the household equipment is not high at present is solved, and the control effect of the household equipment is improved.
Owner:NORTHEASTERN UNIV FOSHAN GRADUATE SCHOOL OF INNOVATION +1

Home toilet waste treatment system comprising bio-treatment device and combustion device, and method for treating toilet waste by using same

Provided are a household toilet waste treatment system and a method of treating toilet waste using the same, the household toilet waste treatment system comprising a solid-liquid separation toilet, a biological treatment apparatus, a sterilization apparatus, and a combustion apparatus. The combustion apparatus complements a slow biological treatment apparatus to allow continuous treatment of the household toilet waste in a unit space without long-distance piping connections.
Owner:SAMSUNG ELECTRONICS CO LTD

Flow channel box of dialysis equipment and portable dialysis equipment

According to the flow channel box (13) of the dialysis equipment and the portable dialysis equipment, a plurality of fluid channels (1313) for controlling fluid to flow forwards or backwards through air pressure are arranged in a box body of the flow channel box (13); a plurality of independent first pneumatic interfaces (1322) which are respectively butted with a plurality of second pneumatic interfaces (103) of the dialysis equipment are arranged on a box body of the flow channel box (13), so that a pneumatic system in the dialysis equipment can control fluid in a fluid channel (1313) to flow forwards or backwards by utilizing air pressure after the flow channel box (13) is butted with the second pneumatic interfaces (103) by a user; the operation complexity and the operation threshold are greatly reduced, the integration level of dialysis equipment is higher, the size is smaller, and dialysis treatment in the scenes such as first aid, travel, rescue and relief work and home is particularly facilitated.
Owner:SHANGHAI XINGUANG BIO-PHARM LTD

Ion detection without optical interference from samples

Devices to detect analytes (e.g., charged species such as ions) in samples are provided as are methods for their use. The devices comprise a tube or container comprising a water-immiscible sensing oil phase comprising at least one sensing chemical that binds the at least one analyte. The tube further receives an aqueous sample. Upon mixing of the two immiscible phases, the analyte partitions into the oil phase and binds to the sensing chemical, delectably changing the optical properties of the sensing chemical (or of an associated reporter molecule). Detection of the changes permits quantification of the amount or concentration of analyte in the sample without optical interference from the sample. The devices are suitable for home use and other decentralized settings.
Owner:VIRGINIA COMMONWEALTH UNIV

Meter circuit control system based on household power supply and control method thereof

The invention discloses a household power supply-based meter machine circuit control system and a control method thereof, and relates to the technical field of intelligent household appliance control. Comprising a cognitive load quantification module which obtains an interface comprehensive cognitive load score of a user through a user portrait and a terminology, and determines an interface display effect; the progressive guide module is used for carrying out progressive guide according to the Petri network, grading pressing pressure in the use process of the user through a pressure induction touch screen, and determining a pressure threshold value according to a grading result and complexity score; and the state mirror image module is used for carrying out dual-channel operation preview through a set dual-channel memory mirror image, and carrying out node dragging rollback and parameter comparison preview according to a visual operation timeline. The learning cost and the use pressure of the user can be reduced, the problems that a traditional intelligent rice machine is complex in interface and poor in operation fault tolerance are solved, and users with different cognitive levels can efficiently use advanced functions of the equipment.
Owner:四川钭进科技有限公司

Household cleaning machine water tank and household cleaning machine

The utility model relates to the technical field of automatic cleaning equipment, in particular to a household cleaning machine water tank and a household cleaning machine. The utility model provides a household cleaning machine water tank and a household cleaning machine, and aims to solve the problems that in the prior art, a water tank is unreasonable in structure, and operation is inconvenient when water is added into the water tank. A household cleaning machine water tank comprises a tank body, a cavity is formed in the tank body, and a tank cover covering an opening is further arranged on the tank body. The box cover is rotationally connected to the box body, and when the box cover is in an open state, the box cover is located on one side of the box body instead of the upper portion of the box body. According to the design, a user can easily add water into the water tank without taking the water tank out of the equipment or moving the water tank to a specific position. A user only needs to simply and laterally turn the box cover, the outlet part can be exposed, and therefore water can be conveniently injected into the cavity. Due to the side opening type design, more sufficient operation space is provided for a user, and the water adding process is smoother and unobstructed.
Owner:ZHEJIANG TIANXI KITCHEN APPLIANCE CO LTD

Old people guarding method and system based on Internet of Things

The invention provides an old people guarding method and system based on the Internet of Things, and the method comprises the steps: generating a control parameter distribution state of an Internet of Things node device according to the use data of the Internet of Things node device, the Internet of Things node device being a household intelligent device in communication connection with an Internet of Things central device; modeling based on the control parameter distribution state of the Internet of Things node equipment to obtain a behavioral habit model of a guarding object, monitoring daily use behaviors of the Internet of Things node equipment, and judging whether an abnormal use event which is not matched with the behavioral habit model exists or not; and when an abnormal use event which is not matched with the behavior habit model exists, calling video monitoring data to analyze the real-time state of the guarding object, and judging whether emergency treatment measures need to be executed or not according to the analysis result of the real-time state, so that the behavior data of the old people can be comprehensively obtained, and the safety of the old people is improved. Therefore, the physical state of the elderly can be analyzed and predicted more reasonably.
Owner:SHENZHEN EPS TECH CO LTD +2

A home elevator fall detection method and system based on 4D millimeter wave radar

This application relates to the field of elevator monitoring technology and discloses a method and system for detecting falls in home elevators based on a 4D millimeter-wave radar. The method includes acquiring a radar echo signal of any target object in the elevator in real time; determining the static point cloud and dynamic point cloud information of the target object; calculating the mean of all dynamic point clouds of the target object, and at the same time, forming a target tracking trajectory based on the dynamic point cloud, selecting a dynamic point cloud with a height value greater than the target object to solve the mean; when the means of both dynamic point clouds continuously and monotonically decrease within a preset range, and the minimum means of both dynamic point clouds are less than a first threshold, calculating the height mean of the static point cloud of the target object; when the height mean of the static point cloud of the target object is less than a second threshold for a long time, determining that the target object has fallen; when it is determined that the target object has fallen, the radar sends a person-trapped signal to the elevator master control. This application improves the detection accuracy of people falling in elevators and has better environmental adaptability.
Owner:HANGZHOU INNOVATION RES INST OF BEIJING UNIV OF AERONAUTICS & ASTRONAUTICS