97 results about "City area" patented technology

Using six types of nodes of radio sensors to structure four types of radio sensor networks, the invention forms cooperation in four layers, and accomplishes four functions. The said cooperation is: cooperation between section of road and vehicles; road junction and road junction; road junction and subarea; subarea and subarea. The said four functions are: using radio sensor networks to collect data of traffic flow in real time, fast and accurately; based on need of real time traffic flow, the invention selects self-contained signal control algorithm or cooperated signal control algorithm dynamically to generate optimal scheme for allocating time of signal for road junction; communication between road junction and vehicles make possible to redistribute spatial traffic flow; remote control end can control schemes for allocating time forcibly. There is good compatibility between the invention and current hardware of signal control system.

The invention discloses a three-dimensional geological model constructing and integrating method for a mountain city area, and belongs to the field of three-dimensional geological models. The construction of the three-dimensional geological model for the mountain city area is achieved through the method; due to the fact that the features of the geological structure of the mountain city area are combined, according to the process of constructing a sectional framework, drawing a section and constructing a geological model and the method for constructing the geological model by utilizing the section, the construction of the three-dimensional geological model for the mountain city area is completed more accurately. According to the three-dimensional geological model constructing and integrating method, visualization integration of the three-dimensional regional geological model is further achieved, and a data basis is provided for application analysis of geological topics. Moreover, with regard to the result data of the formed three-dimensional regional geological model, visual integration simulation on a three-dimensional digital city platform is achieved, and real-time geological analysis of the three-dimensional geological model can be achieved in a three-dimensional scene.

The invention discloses a small-scale air quality index prediction method and system for a city, which firstly divides a city area into a plurality of to-be-predicted locations in a grid form; and then acquires historical data related to each model, and based on historical data: establishing corresponding correspondences The current time prediction and the time prediction model predicted at each moment in the future time, establish a spatial prediction model for air quality prediction at the specified coordinates, and establish a dynamic prediction model that characterizes the relationship between traffic data and geographic interest point data and air quality index, an indoor and outdoor prediction model that characterizes the relationship between the indoor air quality index and the outdoor air quality index; when performing the prediction, the established time prediction model, the spatial prediction model, and the dynamic prediction are performed for any real-time moments to be predicted. The model and the indoor and outdoor prediction models are cooperatively trained to fuse the prediction results of all the models, that is, the predicted values of the air quality index at each moment in the respective current and future time periods of each to-be-predicted location.

The invention relates to the technical field of mobile communication systems, in particular to a positioning method of a city mobile station. The method comprises the following steps of: (11) collecting data of a target city to generate a geographical grid, and calculating grid codes; (12) updating an actual measurement main-neighbor cell dictionary database; (13) updating a geographical grid area propagation characteristic database; (14) synchronizing data in a grid library subsystem; (15) analyzing measuring reports, rejecting invalid records, and selecting city area records; (16) merging and smoothing multiple continuous measuring reports in the same conversation; (17) performing positioning calculation of the indoor mobile station on the conversation generated indoors in the records; and (18) accurately positioning nonpositioned recorded matched grid area propagation characteristic database. In the positioning method, actual measurement data are mined and integrated fully, and the indoor positioning and outdoor positioning of the city are processed respectively by combining with network engineering parameters and urban wireless environment simulation results, so that the positioning accuracy under the urban complex environment is reduced to within hectometer.

The invention discloses a polarization four-component decomposition method for a city area. The method comprises the following steps of: performing preprocessing on the polarimetric synthetic aperture radar image data of the city area so as to obtain a coherent matrix T theta; S12: eliminating the orientation angle theta in the coherent matrix T theta so as to obtain coherent matrix T; and S13: performing polarization four-component decomposition on the coherent matrix T by using a volume scattering model Tv. Through the orientation angle compensation performed on a coherent matrix and using a new volume scattering model to describe the volume scatting in polarization decomposition, the negative power problems of surface scattering and dihedral angle scattering, which are caused by overestimated volume scattering power, can be released to a certain extent.

The present invention relates to preventing, warning and intelligent controlling technology of automobile end collision and is used in preventing automobile end collision accident. The intelligent control system adopts integral detecting, analysis, processing and control structure mode, and includes signal acquisition part comprising Doppler ranging radar, vehicle speed and braking sensor; central system processor part; display and alarm part; and control and executing part comprising engine fuel supplying and braking unit. The central system processor unit has integrated signal modulation, input buffering, sampling and holding and many other functions, and is provided with conversion switch for changing between the 'overtaking mode' and 'city area running mode'. The present invention may be installed in various kinds of automobile without altering influencing the outer appearance and electric lines of the automobile.

The invention discloses a high-speed rail user identification method based on motion trajectory, which belongs to the technical field of mobile user special scene identification, including data acquisition and name definition, and the name definition includes station area, high-speed rail area, public network area, time occupied by the first area, and occupied area. The time of the last cell, the total duration, and the duration of a single cell; station cells: waiting halls / platforms / occupied cells before and after high-speed rail enters and exits; high-speed rail cells: high-speed rail cells + non-high-speed rail cells in urban areas; public network cells: The first layer of the non-urban area; the time of occupying the first cell: the end time of the last XDR in this cell; the time of occupying the last cell: the start time of the first XDR in this cell. The present invention simplifies the recognition algorithm and improves the recognition accuracy by combining the screening of the station district, the high-speed rail private network district, the public network district near the high-speed railway, the occupied time of the district and the speed of the road section.

The invention provides a city CBD parking lot comprehensive evaluation method. A city CBD parking lot comprehensive evaluation index system is established, then a multi-stage comprehensive evaluation method is used, and a city CBD parking lot comprehensive evaluation model is established. According to the method, the systematic, hierarchy and fuzzy features of parking lot evaluation are fully considered, and a quantitative evaluation result is given. The method is useful for urban traffic managers to understand parking current situation, optimize and improve parking facilities, facilitate residents traveling by cars and solve city area parking lot supply and demand contradiction.

The invention discloses an acoustic environment functional area partitioning method based on a road network and interest points. The method comprises the following steps: according to a road network picture, using image morphology to divide a city area into a plurality of subareas; taking a specific gravity of each interest point category in the area as area description parameters, screening the area description parameters, and then, clustering the area description parameters to obtain different area clustering categories; and according to the acoustic functional area requirement and the acoustic environment impact factor of each interest point category, realizing the calibration of an acoustic functional area of each interest point category, and carrying out acoustic functional area division on the area along a road. Since a large quantity of geographical spatial data in a city is applied to the acoustic functional area division, the method has the advantages of being high in automation degree, high in division efficiency and short in updating period and is suitable for evaluating the current acoustic environment quality of the city.

The invention discloses an airplane demisting equipment, which comprises a water tank. The water tank is communicated with a plurality of injecting nozzles arranged outside the airplane through a pipeline, and water in the water tank can be sprayed through the injecting nozzles in the period when the airplane flies in the mist zone, to cause the mist to be formed into rain, snow or hail to fall off. Because the water tank is communicated with a plurality of injecting nozzles arranged outside the airplane through the pipeline, the water in the water tank can be sprayed through the injecting nozzles in the period when the airplane flies in the mist zone, to cause the mist to be formed into rain, snow or hail to fall off. The demisting method that water drops are taken as condensation nucleus has the advantages that the equipment is simple, the raw material cost is low, the airplane demisting equipment is suitable for the demisting in the large range, thus not only the demisting effect is good, and the mist cost is low, but also the demisting effect is enduring. The invention can be used for the demisting in the large range in the city area, on the highway, at the air port and at the dock.

This invention discloses a method for guaranteeing data safety of two layer Ether net exchange in MAN transmission devices including: setting up a message filter list to filter the messages received by the exchange, setting up a route list to forward the filtered messages based on the route list, which can prevent the attack of network end to increase the data safety in the MAN transmission device.

The invention discloses a thermal power pollution factor control method of air fine particles. The method includes the steps that data related to production of thermal power plants are obtained from the power production department, meteorological and PM2.5 monitoring data are obtained from the environment protection bureau, influences of pollutants emitted by one single thermal power plant on PM2.5 are calculated quantitatively, and an analysis model of the influences of one single thermal power plant on surrounding environment pollution is built; model superposition is carried out on the single thermal power plants to form thermal power generation emission PM2.5 quantitative analysis model around a city, and thermal power PM2.5 pollution around important cities even larger geographic areas is analyzed quantitatively; prediction and quantitative calculation are carried out on pollution emission by means of power generation amount of the thermal power plants, the production process and environment parameters to obtain quantitative priority of thermal power plant government. By means of the method, the influences of the pollutants emitted by thermal power enterprises around the city on PM2.5 are quantitatively analyzed, prediction of a week level and a month level of the PM2.5 value in the important city area is carried out, bases are provided for the government to make policies, and environment protection is achieved while production is guaranteed.

The invention relates to a space load prediction method and belongs to the field of power systems. The method includes the steps of firstly, predicting the land using information of a planning year, and dividing lands of the planning year according to communities to determine the classification load density index of a future year; secondly, calculating the load saturation value of each community in the future year, and calculating the total classification load amount and total load saturation value of the future year at the same time; thirdly, using the data of the second step to predict the load distribution of an old city area; fourthly, using the data of the second step to predict the load distribution of a new city area through space deduction; fifthly, checking the load prediction result of the planning year; sixth, continuing checking if the checking result is unsatisfactory until the checking result is satisfactory. By the method, the problem that the prediction load of all same-classification old city areas is obtained according to unified classification load average density is solved, prediction precision is improved effectively, and additional data can be obtained easily.

The invention provides a method for dynamically monitoring the urban traffic emission pollution status based on taxi GPS data and belongs to the atmospheric environmental monitoring technology field.The method comprises steps that firstly, GPS data of taxis, the proportion of each type of vehicles of different road types and daily change of the proportion of the taxis are collected; GIS-based grid division of the collected GPS data is carried out, and the traffic volume, the average speed and the pollutant emission amount of each grid are calculated; the traffic volume, the average speed, thepollutant emission amount of each grid and road length are selected as monitoring factors, a monitoring index value of each grid is calculated according to the weight of each monitoring factor, and lastly, the level of the traffic emission pollution status of each grid is determined based on the monitored index values. The method is advantaged in that a problem of low accuracy of real-time monitoring data of the traffic emission pollution status in the prior art is solved, and the method is applicable to monitoring of the traffic emission pollution status.

The invention discloses a comprehensive control method for the town water pollution in the three gorges reservoir area, comprising a method for controlling a series of pollutants such as the town industrial and domestic pollution sources discharged out of the small-town area and the city area, the urban non-point source pollution caused by the rainfall runoff generation and the like, so that the comprehensive control method has the characteristics of being feasible in technology, reasonable in economical efficiency, remarkable in combined effect and the like, and the defect that the existing pollutant control method is single in implementation mode, free from technology support, and free from pertinence can be overcome. By respectively setting a water pollution control method for the small-town area of the three gorges reservoir area and the residential district, the dense population business district and the industrial park of the city region, the comprehensive control method for the town water pollution in the three gorges reservoir area is integrated, so that the powerful technology support can be provided for realizing the total water quality target requirement and the pollution abatement work in the three gorges reservoir area of China, and the example can be provided for the town water pollution control of various hydraulic and hydro-power engineering reservoir areas in the western China.

The invention relates to the technical field of route optimization, and provides a logistics distribution route optimization method and device and a terminal device. The method comprises the steps that a city area is divided to generate a number of divided areas, and at least one logistics distribution person is arranged for each divided area; logistics distribution information is received, wherein the logistics distribution information comprises address information; according to the logistics distribution information, a logistics distribution task is generated and sent to the work terminal of the logistics distribution person corresponding to the address information; and according to the current logistics distribution task of the logistics distribution person, current traffic situation and historical traffic information, a logistics distribution route is recommended through a route optimization algorithm and is sent to the work terminal of the logistics distribution person for display. According to the method, time spent by the logistics distribution person can be reduced, and the logistics distribution efficiency is improved.

The invention discloses a subway station position selection method and system based on space big data; the method comprises the following steps: determining a city area in which a subway line is to be built, and gridding the city area so as to form a candidate subway station position set; optimizing the candidate subway station position set according to preset restrictive conditions so as to determine a feasible subway station position set, wherein the subway station position set comprises the start point and end point of the subway line; building a multi-target subway station position selection model according to the preset constrained conditions; optimizing the subway station positions in the feasible subway station position set according to the subway station position selection model, thus determining the subway station selected positions. The method and system consider various factors like city economy, social, traffic and policies, can extract colony travel activities from multi-source space-time locus data so as to build the multi-target subway station position selection model, and can use the built multi-target subway station position selection model to select subway station positions with high efficiency and quality.

This invention relates to a distribution method for a base station IP address, in which, the DHCP server of a core network is divided into a hierarchical structure based on the geographical positions, each DHCP server in a MAN can manage several radio base stations, which are taken as the broker for assigning and releasing IP addresses between the mobile station and DHCP server, at the beginning of the core net, a lower level DHSP server can require to the upper level server based on the positions of its managed base stations to get the corresponding IP address action region dynamically, at the beginning of logging-on to the net, the mobile station asks for assigning IP addresses to the base station, which negotiates with a DHCP server of the MAN sub-net to assign the IP addresses and confirms them not conflict and returns back the new IP addresses to the mobile station.

The invention relates to an urban community structure mining method and device based on navigation data, belonging to the. Data data processing technology field, T. The invention discloses a method for providing taxi navigation data. clustering the get-off points, determining a center point of each cluster, and performing Thiessen polygon division on the hot spot area by taking the center point asa reference point to realize division of the city area, so that the distance between all sample points in the polygon and the reference point in the polygon is shorter than that between the sample points in the polygon and any other reference point; A; and abstracting the discretized hot spot areas into a graph, and gathering the divided areas with stronger connection through a clustering algorithm to form a community. According to the invention, good perceptibility of taxi operation behaviors to resident travel activities and urban dynamic characteristics is fully utilized; O; on the premiseof no expert knowledge, urban community structure characteristics can be automatically obtained in an unsupervised mode, and effective decision-making means and reference information can be providedfor reasonable urban function area planning, land resource utilization and road traffic construction.

The invention relates to a groundwater feeding system used to collect rain and avoid blooding ground, wherein the invention is characterized in that: it arranges garage parking; arranges cover plate above the road, to form the rail collecting system with roof of garage parking, cover plate and parks. Said part has water pools to collect the rain; the upper water pool of water pool can keep the water level; the circumference of park is arranged with baffle wall, to avoid the rain to flow into the road, and leak abundant rain into ground, to feed the groundwater.

The invention discloses a city area traffic emergency plan method for a severe haze weather. Targeting at a haze weather which occurs recently, the invention establishes an emergency plan system which is formed by a database module, a mesoscopic simulator module, an offline optimization platform module and a preferred plan module. The system simulates a pollutant exhausting condition and a pollutant concentration diffusion condition of city area motor vehicles and on the basis of the conditions, the plan system obtains a reasonable and effective emergency plan method through computation and optimization, that is, a novel scheme for limiting a proportion of motor vehicles which enter city areas and timing of signal lamps in the areas. Under a severe weather, the method guarantees that the weather of city areas does not further deteriorate because of pollutant exhaust of motor vehicles and also prevents threats on human health by pollutants.

The application discloses a city region division method, a device and terminal equipment, relates to the technical field of computer applications, and solves the problems that the existing urban division method cannot meet the regional information transfer needs using district as the target in the city, the information transmission efficiency is low, and user experiences are poor. The scheme specifically comprises the steps that the city map to-be-divided is divided into a preset number of unit grids; each divided unit grid is marked, the mark information of each unit grid includes the information of vehicles passing through each unit grid; according to the mark information of each unit grid, through the clustering method, unit grids of the adjacent and the close and with similar vehicle movement law are gathered, to complete the division of city regions. The scheme achieves the division of the city area based on the vehicle trajectory information, meets the information transfer needs in the city using region as the target, and improves the efficiency of information transfer between city areas, so as to improve the technical effects of user experience.

The composition of said invented environment-protecting type water-permeable brick is composed of (wt%) 75%-85% of bauxite granule material with 6-35 meshes, 7%-10% of clay fine powder with 250-300 meshes, 3%-6% of talcum powder and 4%-8% of bentonite. Said invented water-permeable brick is made up by using the above-mentioned materials in which the bauxite granule material is used as main material through the process of baking at high temperature. Said product has high strength, high hardness, strong bearing capacity and excellent water permeability, and its water-permeable rate can be up to21mm / s.

The present invention relates to a geographic positioned coding technique of city region and component. It is characterized by that it includes the following steps: 1. dividing city region into several levels of grids, coding every-level grid and forming grid code map; 2. coding every city component in the city and forming city component code; 3. marking every city component code on the place nearby the position of city component in correspondent unit grid of grid code map so as to form city component grid code map. Said invention also provides the application range of said city component grid code map.

The invention provides a cloud service system for home-based care for the aged, which comprises a city big data center consisting of a data acquiring unit and a city-area narrow-band internet-of-things unit, a care service sub-unit, a calling center sub-unit, a pre-warning prompting and aiding sub-unit, a government data sharing sub-unit, a cloud data analyzing engine unit. The data acquiring unit comprises an intelligent smoke sensor, a water consumption information sensor, an SOS emergency speaking module, a door and passage human body sensor, and a biological characteristics sensor. The data acquiring unit is arranged at home; and the wireless data outputted from the data acquiring unit act on the city-area narrow-band internet-of-things unit; and the city-area narrow-band internet-of-things unit, is connected with the cloud data analyzing engine unit through the city-area narrow-band internet-of-things; the government data sharing sub-unit and the cloud data analyzing engine unit are connected through a network. The care service, the calling center, the pre-warning prompting and aiding, the government data sharing sub-units are software installed in the computer of the engine unit. With the system, it is possible to provide assistance and aid to the aged and provide data for relevant government departments.

The invention provides a method used for calculating the bus network density of any region in a city. The invention relates to a bus system network density calculation method, and especially relates to the bus network density method in any region in the city based on multi bus line GPS data. According to the method used for calculating the bus network density of any region in the city, GPS data of a number of bus lines are split; a distance similarity technology is used to remove repetitive lines; non-repetitive lines are accumulated to acquire the total length of a road centerline; the total length is divided by a selected city area to seek the ultimate bus network density; and a good reference is provided for network planning and optimization of a bus company.

The invention provides a method, a device and a system for determining a home area of a mobile user, and the method comprises the steps: obtaining a call record of the mobile user in a preset observation period; obtaining a base station cell and call duration corresponding to each call record according to the call records; carrying out discretization processing on the call duration to obtain a discrete time variable; establishing a spatial clustering model of the discrete time variables, and obtaining the most active position of the mobile user; and determining a home area of the mobile user according to a corresponding relationship between the most active position and a bottommost city area of an operator. Therefore, the purpose of determining the affiliation area through spatial clustering analysis of the activity degree position of the mobile user is achieved, the accuracy of the affiliation area determination result is improved, and a guarantee is provided for later customer maintenance and revenue improvement.

The invention discloses an infrared demisting equipment, which comprises a universal supporting rack. The universal supporting rack is driven by a motor, and an infrared lamp and a reflector on the universal supporting rack; when the light reflected by the infrared lamp and the reflector radiates in a mist area, mist drops are heated into water vapor to ascend, the water vapor is coagulated on the mist drops on the upper layer, and when the weight of the mist drops on the upper layer is increased to the state that the suspension can not be maintained, the mist drops are formed into rain, snow or hail to fall off. The method that infrared rays are utilized to demist has the advantages that the problem that positive ions discharge does not exist, thus the security is good, and the universal supporting rack is driven by the motor, thus the infrared demisting equipment is easy to be operated. The invention can be used for the demisting in the large range in the city area, on the highway, at the air port and at the dock.

The invention discloses an automatic division method for a catchment area of an urban drainage pipe network, solves the problem of low division efficiency of an existing catchment area, and belongs to the field of cross application of environmental engineering, visible light remote sensing image semantic segmentation and computer vision. The method comprises the following steps: S1, acquiring a remote sensing image of an urban target area, and constructing a training data set; S2, utilizing a convolutional neural network coupling variant residual network to construct a road network extraction convolutional neural network model, and using a variant residual network as a coding structure of the convolutional neural network; S3, training a road network extraction convolutional neural network model by using the training data set, and determining parameters of the road network extraction convolutional neural network model; S4, inputting the remote sensing image of the city area to be divided into a road network extraction convolutional neural network model, and extracting road network information; and S5, dividing the extracted road network information into water catchment area, and further dividing sub-water catchment areas by using an inverse distance weighted Thiessen polygon method in combination with prior information of rainwater well point distribution.