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42results about How to "Real time use" patented technology

Visual SLAM method based on multi-feature fusion

The invention discloses a visual SLAM method based on multi-feature fusion, and relates to the field of robot visual positioning and mapping. The invention discloses a multi-feature fusion vision SLAM(simultaneous localization and mapping) method based on a depth camera, which solves the vision positioning problem under the condition that pure point features fail by fully using point-line features extracted from an image and constructing plane features according to the point-line features. A self-adaptive threshold method is adopted to extract point features, so that more uniform point features can be obtained; line features are extracted, short and small line segments are deleted, and the segmented line segments are combined to improve the accuracy of line feature matching; wherein the point-line features are used for estimating the inter-frame pose and constructing a local map; a surface feature is calculated by adopting a minimum parameter method to reduce the calculated amount; the point, line and plane features are tightly coupled by constructing a back projection error function of the fusion features, and a global map is constructed to carry out global pose optimization. Thevisual SLAM method is high in precision, good in real-time performance and high in robustness, and the problem that the visual SLAM precision is reduced or even a system fails in a low-texture environment based on a feature point method is solved.
Owner:HARBIN UNIV OF SCI & TECH

Account checking system and method

The invention provides an account checking system and method. A first configuration module sets an account checking information import template for configuration of a user and extracts first account checking information corresponding to configuration information from a target account checking data source according to the input configuration information, the first account checking information includes multiple pieces of bill information, and each piece of bill information includes payment serial number information, order information, transaction amount information, transaction date information and a transaction company. A second configuration module is used for extracting second account checking information corresponding to the first account checking information from a reference account checking data source. A matching module is used for matching of the first account checking information and the second account checking information and transmitting matching failure information to a display module to display the matching failure information when matching of a certain piece of bill information in the first account checking information and the bill information in the second account checking information fails, and the matching failure information includes the payment serial number information of the bill information. Real-time configuration and real-time application can be realized without modifying the system code level.
Owner:SHANGHAI CTRIP COMMERCE CO LTD

Digital fountain code based cloud storage system structure and service providing method

The invention discloses a digital fountain code based cloud storage system structure and a service providing method. By means of the system structure and the service providing method, the quality of service (QoS) of a cloud storage is effectively guaranteed. Edge clouds are deployed on different networks and in different regions, and the digital fountain code based cloud storage system structure is formed by a core cloud, the edge clouds, a terminal user and a digital fountain code coding and decoding layer. According to the system structure, services of common data, frequently-used data by a user and the like are distributed on the edge clouds of the networks or the regions where the terminal user is located, and the core cloud and the edge clouds cooperate to transparently provide a cloud storage service for the user. On the above basis, the service providing method specific to the digital fountain code based cloud storage system structure, the cooperating method of the core cloud and the edge clouds, and a user data migration method are provided. According to the digital fountain code based cloud storage system structure and the service providing method, most of network flow in the cloud storage is limited to local terminal users, the flow of a backbone network is reduced, the problem of the dependence of a centralized type cloud storage mode on the network bandwidth, the time delay and the like is effectively avoided, and the QoS of the cloud storage is guaranteed.
Owner:万鑫明 +2

Information flow recommendation method and device based on deep reinforcement learning, equipment and medium

The embodiment of the invention discloses an information flow recommendation method and a device based on deep reinforcement learning, equipment and a medium, and relates to the technical field of information processing. The method comprises the steps of collecting a historical click sequence of a target user; calling a preset actor neural network and a preset critic neural network; generating a user recommendation list, and displaying the user recommendation list to the target user to obtain feedback result data and a new historical click sequence generated after feedback; calculating a timedifference error; updating parameters in the critic neural network and the actor neural network; and generating a new user recommendation list, and displaying the new user recommendation list until feedback result data of the target user for the new user recommendation list and a new historical click sequence generated after feedback cannot be obtained. According to the method, the interactivity between the recommendation system and the user is enhanced, the feedback of the user is utilized in real time, the recommendation engine can be continuously optimized, the recommendation quality is improved, the user experience is improved, and the user is effectively attracted to remain.
Owner:CHINA PING AN LIFE INSURANCE CO LTD

High-rise water supply and drainage integrated gas medium energy return-flow system based on air energy storage

The invention relates to a high-rise water supply and drainage integrated gas medium energy return-flow system based on air energy storage. The high-rise water supply and drainage integrated gas medium energy return-flow system comprises an energy collecting module, a torque increasing transmission module and an energy return-flow module. The energy collecting module is composed of a gas guide-out pipe, a sewer line and a pelton turbine; the torque increasing transmission module comprises a reducer and a crankshaft and connecting rod mechanism, a power input gear of the reducer and the pelton turbine are coaxial, and a power output gear of the reducer is installed on a crankshaft of the crankshaft and connecting rod mechanism; and the energy return-flow module comprises a piston, an inflator, a gas temporary storage tank and a secondary water supply pressure tank, the piston is connected to the end of the crankshaft, and a gas outlet of the inflator is communicated to the gas temporary storage tank in a one-way manner to be then communicated to the secondary water supply pressure tank in a one-way manner to be finally communicated to the gas guide-out pipe in a one-way manner. According to the high-rise water supply and drainage integrated gas medium energy return-flow system, potential energy of high-rise waste water is collected and is stored in a gas storage device in the manner of high-pressure gas potential energy and is used for existing residential area secondary water supply systems, and therefore part of water supply energy flows back to assist in water supply, and energy consumption of high-rise water supply is reduced.
Owner:CHINA UNIV OF MINING & TECH

Illumination control system of tunnel lamps on expressways

ActiveCN103486497AMeet the needs of lighting stepless dimmingMeet the needs of remote transmissionOutdoor lightingElectric light circuit arrangementVehicle detectorEngineering
The invention discloses anillumination control system of tunnel lamps on expressways. The illumination control system comprises an illumination control device, wherein the illumination control device is connected with an upper computer by an exchanger, receives signals measured by a brightness detecting instrument and a vehicle detector by a bus, and is connected with and outputs PWM (Pulse Width Modulation) signals to a constant-current power supply of an LED (Light Emitting Diode) lamp in an illumination loop in a tunnel by a PWM bus; the constant-current power supply of the LED lamp is connected with the LED lamp; when the PWM signals are in high level, the current output of the constant-current power supply of the LED lamp is the minimum value, and when the PWM signals are in low level, the current output of the constant-current power supply of the LED lamp is a maximum value; and the illumination control device outputs at least two paths of PWM signals, and the number of the paths is set by the illumination control device according to processed results of the signals measured by the brightness detecting instrument and the vehicle detector. The illumination control system disclosed by the invention has the advantages that under the conditions with different light environments, vehicles or novehicles and different vehicle flows, automatic stepless regulation is realized for tunnel illumination on the expressways, so that the light-emitting efficiency of the lamps is improved and the consumption of the electric energy for tunnel illumination is reduced.
Owner:GUANGXI TRANSPORTATION SCI & TECH GRP CO LTD

Method and system for indirectly measuring dew point temperature by microwave radiometer

The invention relates to the technical field of meteorological element measurement and technology development, and discloses a method and system for indirectly measuring the dew point temperature by amicrowave radiometer, wherein the method comprises the following steps: S1, carrying out data decoding of the microwave radiometer, and extracting the temperature and humidity values of N profiles; S2, automatically identifying an algorithm of each height point of each profile based on temperature and humidity values; S3, calculating the dew point temperature of each height point of the N profiles according to an algorithm matching result; and S4, generating a 0-24-h and 0-10 km dew point temperature hour height map in an imaging manner. According to the method for indirectly measuring the dew point temperature by the microwave radiometer, different algorithms are matched according to different temperature and humidity, dew point temperature values of different height points of each profile are calculated, images are generated, and continuous measurement of the 0-24-h and 0-10 km dew point temperature is achieved; and continuous judgment of atmospheric condition saturation degrees ofdifferent layers of 0-10 km and continuous generation of severe convection forecasting and early warning products serving convection temperature, K index, total index (TT) and the like are provided for a pre-announcer.
Owner:泰州市气象局

Real-time monitoring apparatus for building fire-fighting and warning

The invention discloses a real-time monitoring apparatus for building fire-fighting and warning. The real-time monitoring apparatus is composed of a central processor, a temperature sensor, a smoke sensor, a voice acquisition module, a shooting acquisition module, a positioning module, a storage device, a warning device, a wireless communication module, a fire fighting and warning module, a display device, an escape emergency lamp circuit, an electrically controlled door lock drive circuit, and an electrically controlled door lock. The temperature sensor, the smoke sensor, the voice acquisition module, and the shooting acquisition module are connected with the central processor respectively; the shooting acquisition module is connected with the positioning module; the central processor is connected with the storage device and the warning device; the central processor is connected with the wireless communication module connected with the fire fighting and warning module; the wireless communication module is connected with the electrically controlled door lock drive circuit and the escape emergency lamp circuit; and the electrically controlled door lock drive circuit is connected with the electrically controlled door lock. The real-time monitoring apparatus can be used conveniently; the real-time monitoring performance is good; warning can be carried out rapidly; and a rescuer can be helped.
Owner:TIANJIN ANJIE PUBLIC FACILITIES SERVICE CO LTD

Electric heating drying oven

The invention discloses an electric heating drying oven. The electric heating drying oven comprises a shell, a fan, heating tubes and a liner. The fan is fixedly embedded into the outer surface of oneside of the liner. The heating tubes are fixedly installed on the outer surfaces and the outer bottom ends of the two sides of an opening in the side, with the fan, of the liner respectively. Protruding rivet structures are fixedly installed on the outer surfaces of the two sides of the liner respectively. Each protruding rivet structure comprises a lifting lug and a blocking piece. The liner ismovably connected with an outer shell. An air outlet pipe is installed in the outer shell and the top of the liner in penetration manner. A tube end connection flange and a tube end installation flange are fixedly installed at the two ends of the air outlet pipe respectively. The tube end connection flange is used for connection with a drying oven air outlet channel. According to the electric heating drying oven, because of a series of arranged structures, the circulation efficiency of hot air inside the drying oven is improved in the process of drying materials because of application of the electric heating drying oven, the use ratio of heat energy is increased, and the better drying effect is achieved.
Owner:浙江智城医疗器械有限公司

Cross-service Modify data sharing and using method, system, device and storage medium

The invention discloses a cross-service Modify data sharing and using method, a system, a device and a storage medium. The method comprises the steps of obtaining return data in the mode that cross-service is called through an automatic engineering service; analyzing the content data of which the type is Modify from the returned data; monitoring and intercepting an interface request of an interface needing to use the Modify data through a proxy server in the automation engineering service; transmitting the content data into an automatic engineering service, matching and modifying parameters according to a Meddy rule, and returning; and applying the returned modified data to the automation case through the automation engineering service so as to carry out data verification, UI display and checking. The UI automatic case writing is simplified, the case execution efficiency is improved, and when Mordify data need to be performed after a proxy server intercepts a request, only a cross-service method needs to be called to obtain the Mordify rule data stored in the cross-service data, and after analysis, the Mordify rule data is directly transmitted into the Mordify data method for batch modification and is returned in real time for use.
Owner:GUANGZHOU PINWEI SOFTWARE

Video monitoring system used for monitoring cable leakage and arc-climbing

The invention provides a video monitoring system used for monitoring cable leakage and arc-climbing. The video monitoring system used for monitoring cable leakage and arc-climbing comprises a controller, a data transmission module, a video capturing module, an alarming module, a monitoring module, a memory, a circuit breaker and an electric brake protector; the alarming module comprises an audible-visual alarm and a communication module; the video capturing module comprises a camera, an infrared probe and a video collection circuit; the data transmission module comprises an RS485/232 converter, an IPC (Industrial Personal Computer) and a monitor; the monitoring module comprises an environment temperature monitoring unit, an electric leakage monitoring unit and an electric arc monitoring unit; the memory, the circuit breaker and the electric brake protector are respectively connected with the controller. As the advanced video monitoring system is adopted to carry out real-time safety monitoring, including electric leakage and arc-climbing monitoring and video capturing, on a cable, reference data are provided for safety monitoring of the cable; and as an alarm can be given in time when the cable is in problem, real-time monitoring of the cable is realized; and the video monitoring system used for monitoring the cable leakage and arc-climbing has the advantages of simple structure, use safety, monitoring convenience and etc.
Owner:TIANJIN SAISI TECH DEV
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