501 results about "Public place" patented technology

The invention relates to the technical field of artificial intelligence, and discloses an event prediction method and system based on multi-modal fusion, and the method comprises the steps: constructing a knowledge graph encoder, and converting domain expert knowledge into learnable vector representation; constructing a multi-granularity feature extraction network, and extracting features from different microcosmic, mesoscopic and macroscopic scales; realizing a knowledge-guided attention mechanism, and dynamically adjusting feature scale importance; constructing a prototype learning module, and establishing prototype representation of the abnormal category; a knowledge migration mechanism is constructed, and the generalization ability of the model to novel anomalies is enhanced; and multi-granularity abnormal event detection and early warning are realized, and a detection result and interpretable analysis are output. According to the method, through combination of knowledge guidance and multi-scale feature learning, efficient identification and early warning of social abnormal events under the condition of data scarcity are realized, and the method is suitable for the fields of public place safety monitoring, urban traffic safety management, large-scale activity safety guarantee and the like.

The present invention allows for the creation of a biometrically secure environment that allows viewing, editing and sharing of confidential documents, or the like, in public places, without worrying that someone will see the contents. The invention provides privacy, for example for the purposes of reading documents, in a public environment while having the confidence that you are the only one able to read the document. Privacy may be achieved through methods of identification using biometric features, such as: face, iris or voice recognition. Verification that a real person is viewing the document may also be achieved by pulse recognition. In one embodiment, the screen will shut down when more than one person looks directly at the screen.

The invention provides a linkage illumination control method, system and device based on multiple devices and a medium, and the method comprises the steps: carrying out the function partition planning of the internal space of a public place, and setting a differential illumination standard value according to the use characteristics of each region; the method comprises the following steps: collecting real-time illumination parameters of all orientations of the periphery of a building through a deployed illumination sensor, and establishing an indoor space gridding lighting model to obtain indoor natural light distribution; based on the natural light distribution of each indoor area, using a compensation natural light model to adjust the brightness of lighting equipment in each indoor area; a prediction model is established through historical indoor illumination data and weather data, real-time weather and time information is input into the prediction model to predict indoor natural light distribution, and the brightness of illumination equipment in each indoor area is adjusted based on the predicted indoor natural light distribution. According to the invention, unnecessary power consumption can be reduced, natural light is utilized to the maximum extent, and total energy consumption is reduced.

The invention relates to the technical field of public safety personnel evacuation, discloses a public emergency emotional infection simulation method, and aims to solve the problems that an existing emotional infection simulation model does not fully consider a group emotional propagation theoretical mechanism and the influence of personality characteristics of an intelligent agent and is insufficient in simulation precision and authenticity. The method is based on an improved SIRS (Susceptable-Infected-Recovery-Susceptable) model and an OCEAN large five-personality model, and is realized through the following six core steps: 1) constructing a three-dimensional simulation model of a public place; 2) initializing personality characteristics, emotional states and behavior states of the agents; 3) calculating an emotion propagation process (including a propagation range, an influence value, a distance weight and emotion conflict processing) between the intelligent agents; the method comprises the steps of (1) acquiring the emotion of the intelligent agent, (2) calculating the emotion attenuation of the intelligent agent, (3) determining the evacuation speed and completing analogue simulation, (4) realizing the behavior logic of the intelligent agent in different emotion states, (5) calculating the emotion attenuation of the intelligent agent, and (6) determining the evacuation speed and completing analogue simulation. The method can accurately restore the emotion infection and evacuation behaviors of the crowd in an emergency scene, improves the simulation authenticity and lightweight level, and provides decision support for emergency evacuation scheme making and emergency management.

The invention relates to the field of fire risk assessment, in particular to a public place fire risk assessment method and system, and the method comprises the steps: building a communication channel attenuation model through high-temperature smoke interference parameters of a target place, and calculating comprehensive signal attenuation coefficients of different spatial positions of the target place; performing dynamic interference analysis on the multi-mode communication network of the target place according to the comprehensive signal attenuation coefficient to obtain a communication system stability coefficient; and analyzing the stability coefficient of the communication system in combination with historical fire data to obtain a communication topology vulnerability map of the target place under high-temperature smoke interference, and obtaining a risk assessment result of the target place according to the communication topology vulnerability map. The risk assessment accuracy of the fire-fighting communication system under the interference of high-temperature smoke in public places is effectively improved, and the fire-fighting safety guarantee level in public places is improved.

The catkin collecting and incinerating device comprises a box body, an air suction head is arranged on the box body, the air outlet end of the air suction head penetrates through the box body and is connected with the air inlet end of an air pipe, a blocking net is arranged at the joint of the air suction head and the air inlet end of the air pipe, an electric arc generator is installed on the blocking net, and an exhaust fan is installed between an air outlet of an exhaust pipe on the side portion of the air pipe and an air outlet of the box body. The air outlet end of the air pipe extends downwards into the water tank dust collecting device, and the water tank dust collecting device is installed at the bottom in the box body. The fan is used for generating suction force, so that floating or accumulated catkins can be quickly sucked into the device like a dust collector, and high-efficiency and centralized collection is realized; willow catkins are rapidly removed from public places, and drift of allergens and contact with human bodies are directly reduced from the source; collected catkins are intensively incinerated in a closed combustion space through an arc generator, the risk of open-air random ignition is avoided through controllable incineration, and the combustion process is limited within a safe range.

The invention relates to the technical field of air purification equipment, in particular to an unpowered public place air directional flow purification structure. The problems that in the prior art, the natural ventilation principle and the multi-stage purification function cannot be fused on the structural design level, and consequently inherent defects exist in the aspects of energy consumption, noise, maintenance cost, airflow organization stability and the like are solved. The unpowered public place air directional flow purification structure is arranged on a wall unit and comprises a micropore physical pre-filtering structure, a multi-layer labyrinth type physical filtering structure and an adsorption / deposition structure which are integrally arranged in a closed mounting cavity in the wall unit. In the operation process of the structure, no fan or motor or external power supply is needed in the whole process, air circulation is driven by completely depending on the thermal characteristics of the wall and weak thermal buoyancy formed by an indoor environment heat source, no mechanical moving part exists in the operation process, the noise level is low, and the noiseless requirement of a hospital ward area at night is met.

The invention discloses an intelligent dynamic guiding method based on a multi-agent system, and relates to the technical field of multi-agent systems, and the method comprises the following steps: S1, constructing an environment macroscopic state abstract tensor, and inputting the environment macroscopic state abstract tensor into an improved QMIX model; s2, extracting an optimal evacuation decision intention tensor; s3, constructing a local observation state tensor; s4, extracting an individual Q value tensor; s5, extracting a global team Q value; s6, generating an anti-fact state through the VRNN model, calculating time sequence differential loss, and jointly optimizing parameters of the whole QMIX model; and S7, based on the individual Q value tensor, selecting an evacuation guide action. The method overcomes the limitation that a traditional crowd guiding method depends on a fixed plan, the guiding strategy is single and response lags behind, and an efficient and accurate solution is provided for intelligent crowd flow management and control and cooperative guiding of large public places.

The invention relates to the technical field of computer vision and artificial intelligence, and discloses a public area pedestrian trajectory monitoring system based on cross-camera tracking and hybrid simulation completion. The system comprises a camera array module, a pedestrian detection and cross-camera tracking module, a monitoring blind area information base module, a hybrid drive pedestrian simulation engine module, a track fusion and complementation module and a simulation integration propulsion module. According to the invention, monitoring blind area tracks can be effectively filled, track continuity and prediction accuracy are improved, existing hardware is fully utilized to reduce cost, and modular design is easy to integrate and convenient to use. The generated complete track can be widely applied to scenes such as public safety monitoring, passenger flow analysis and emergency evacuation plan making in public places such as ports, subway hubs, cruise ship wharfs and commercial complexes, and supports a real-time monitoring or post-analysis mode.

The invention discloses a public place abnormal behavior recognition method and system based on deep learning, and relates to the technical field of machine learning, and the method comprises the steps: connecting monitoring equipment to obtain and preprocess a video stream; identifying pedestrian targets through a lightweight target detection model and distributing IDs; tracking a pedestrian ID, constructing a motion track and identifying behavior action features; and training an abnormal behavior recognition model through an abnormal behavior sample library, importing a movement track and behavior action feature recognition abnormality, and generating abnormal feedback information according to the traceability level of a result and the like. The technical problems that in public place abnormal behavior detection through a traditional means, abnormal behaviors in a complex scene are difficult to accurately recognize, missing detection and false detection are prone to occurring, information is not timely and inaccurate, and the safety management and control requirement cannot be met are solved, and the purposes of accurately recognizing the public place abnormal behaviors and improving the safety of public place abnormal behavior detection are achieved. And the abnormal feedback information which is accurate and contains the traceability level, the risk level and the timeliness is output, and the technical effect of meeting the safety management and control requirements is achieved.

1. The name of the design product: landscape column. 2. The use of the design product: landscape column for "geographical" square, museum square, urban public place or park. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view. 5. The bottom surface of the design product is the part that is not easy to see or cannot be seen during use, and the top view is omitted.

1. Name of the design product: self-study desk. 2. Use of the design product: desk for self-study in public places. 3. Design points of the design product: in shape. 4. Picture or photo best indicating the design points: perspective view.

1. Name of the product in this design: High Pressure Cleaner (SLT-2502). 2. Application of this design: It is used in vehicles, home appliances, industrial equipment, homes, commercial spaces, public places and other fields to wash dirty exterior surfaces with high-pressure water. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. Name of the product in this design: LED display screen (NTV2). 2. Purpose of this design: For use as an indoor and outdoor information display device in public places. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the key design points: Design 1 3D diagram 1. 5. Design 1 is designated as the basic design.

1. The name of the design product: waterproof outdoor storage box. 2. The use of the design product: used for the classification, carrying and placing of items in the scenes such as home garden, camping / picnic, car / trunk, gardening / agriculture, business / public place, special environment, etc. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view.

This invention discloses a bottle holder and a notification method with a notification function, belonging to the technical field of daily necessities in public places. It includes a support frame and a notification component. The support frame has a first movable groove for accommodating the bottom of the bottle, and is fitted onto the top of the bottle, engaging with it movably. The notification component is disposed within the support frame and located below the bottom of the bottle, engaging with the bottom of the bottle. The notification component has a first state and a second state. In the first state, there is a gap between the bottom of the bottle and the bottom of the first movable groove, allowing the bottle to abut against the support frame. In the second state, the bottom of the bottle is flush with the bottom of the first movable groove. Due to this gap, when the bottle is pressed, it moves downwards, allowing for a certain amount of sinking space, making it easy for outsiders to clearly see that the bottle is low on liquid and prompting them to add more.

The utility model belongs to the technical field of building boards, and particularly provides a fireproof high-strength hydrophobic composite board structure which comprises a fiber reinforcement layer. Hydrophobic layers are arranged on the upper surface and the lower surface of the fiber reinforced layer; the hydrophobic layer comprises a floating bead plate and a hydrophobic film; and the hydrophobic film wraps the pore surface of the floating bead plate. According to the fire-resistant high-strength hydrophobic composite board structure provided by the embodiment, through the synergistic effect of all the layers, the light fire-resistant and heat-insulating performance of the floating beads can be achieved, and water can be prevented from permeating into the composite board structure through the surface or capillary action through the hydrophobic films on the upper surface and the lower surface when the composite board structure is in a humid environment or is corroded by water. Besides, by means of the fiber reinforcing layer with a fiber net laid in the middle, the overall strength and bearing capacity of the board can be improved, the service life of the composite board is prolonged, the composite board is suitable for public places such as office buildings, hotels, restaurants, movie theaters, markets, hospitals and underground parking lots needing fire-fighting smoke exhaust air pipes, and the structural safety is high.

Method for recognizing a pedestrian’s wandering behaviour (pattern), comprising: acquiring motion images of the pedestrian (Fig.4a); recognizing motion centroids of the pedestrian in the motion images; constructing the motion trajectory of the pedestrian using the motion centroids (Fig.5); and performing recognition on the motion trajectory of the centroid to obtain a wandering pattern result; wherein recognition on the motion trajectory comprises analysing the wandering motion trajectories relative to known common wandering behaviours in public places (Fig.2). The pedestrian trajectory may be obtained by: determining key nodes of the pedestrian e.g. head, ears, eyes, nose, mouth, neck, shoulders, elbows, wrists, hips, knees, and ankles; determining body segments based on the nodes, and calculating a centroid of each body segment; calculating total centroid from each body segment centroid; and obtaining a motion trajectory of the total centroids of the pedestrian. The known wandering motion trajectories may be determined from inflection point so the trajectory (Fig.3) and comprise an: oval (Fig.2a); spiral (Fig.2b); snake (Fig.2c); and Brownian motion (Fig.2d).

The application discloses a theft-proof and tamper-proof soap liquid device for public use and capable of reducing plastic use, relates to the technical field of soap liquid devices, and discloses a structure of an inner shell and an outer shell sliding sleeve cooperation. The inner shell and the outer shell are matched to form a closed space for accommodating and containing a refillable bottle or a disposable bag. The inner shell and the outer shell are fixed and locked through a spring and a metal bolt. A clamping groove is arranged at the back of the device to enhance the connection strength, and only a magnetic key is allowed to open the device. The soap liquid device solves the problems of poor theft-proof and tamper-proof effect, serious plastic waste, pollution caused by repeated refilling, maintenance difficulty, unattractive appearance and poor user experience of the existing soap liquid devices through a plurality of technical innovations and design optimization, and has important significance for improving the use efficiency and user experience of cleaning supplies in public places.

1. Name of the product in this design: Mobile Flower Garden (Environmental Design). 2. Purpose of this design: for planting flowers and greenery in public places. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This utility model discloses an intelligent umbrella drying device capable of collecting dripping water, specifically relating to the field of drying equipment technology. It includes a base, with a water storage box fixedly installed on the upper end of the base. An outer shell is fixedly installed on the upper end of the water storage box, and multiple evenly distributed conical placement tubes are fixedly installed on the top of the outer shell. Inside the conical placement tubes, inner and outer filter cylinders and an outer cylinder are fixedly installed at their bottoms. This intelligent umbrella drying device, through its conical placement tubes, filter cylinders, and drain design, quickly collects rainwater from the umbrella surface into the water storage box, preventing slippery surfaces in public places and improving safety. A fan delivers hot air to the area around the umbrella through an air delivery pipe, and combined with a spiral guide plate to optimize hot air circulation, significantly improving drying efficiency. The rainwater collected in the water box is pumped to a top tray by a micro-pump and can be used to water plants, achieving resource reuse and reducing waste.

1. Name of the product in this design: Integrated Government Information Disclosure Machine (Horizontal). 2. Applications of this design: It is used for government departments such as industry and commerce, taxation, procuratorate, and court for the disclosure and inquiry of government information. It can also be used for information inquiry, advertising content playback, and interactive display in public places such as banks, schools, transportation, power, shopping malls, hospitals, airports, railway stations, and exhibition halls. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

1. Name of the product in this design: High Pressure Cleaner (SLT-2501). 2. Application of this design: It is used in vehicles, home appliances, industrial equipment, homes, commercial spaces, public places and other fields to wash dirty exterior surfaces with high-pressure water. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention belongs to the field of intelligent transportation, specifically relating to a MaaS-IoT integrated method and system for crowd risk perception and intervention. The method first collects environmental data and travel orders for the target area through IoT devices and an online platform; then, it constructs a path decision model based on the Bandit algorithm; combining shared and unique feature vectors to achieve path recommendation. Next, it constructs a crowd risk event dataset based on historical data and generates an easily searchable vector database, and fine-tunes the LLM to obtain a crowd risk inference model. Then, it tokenizes the time-series data, and uses the crowd risk inference model to perform chain reasoning and Monte Carlo-Shapley attribution to generate corresponding results; finally, it generates intervention instructions based on the outputs of the two models, and issues them for execution after verification. This invention solves the problem that existing methods struggle to achieve timely risk perception and efficient intervention in public places where crowds gather.

1. Name of the design product: fixed desk and chair (plastic steel combination three). 2. Use of the design product: used in schools, training institutions, hospitals, enterprises and institutions, and other public places such as fixed desk and chair, which can be used in ladder classrooms or flat classrooms. 3. Design points of the design product: in shape. 4. Picture or photo that best shows the design points: perspective view 1.