59results about How to "Rich data types" patented technology

The invention discloses a car networking accident black spot warning system and method based on an augmented reality and a cloud intelligent decision. The method comprises the steps that car operating data is collected through a vehicle-mounted client system layer, and the collected car operating data is sent to a cloud control center layer through a cellular communication network layer; a data decision package sent back from the cloud control center layer is received and displayed to a driver in an augmented reality mode combined with real road conditions; based on car operating data received in real time and data in a black spot database, the cloud control center layer makes decision analysis according to a car operating state and current traffic and weather conditions and publishes corresponding warning information to the vehicle-mounted client system layer in a data package format. By fusing various dynamic traffic data sources and combining the cloud intelligent decision and the augmented reality, the perceptibility of the driver to various accident risks on a road black spot can be greatly improved, the safety awareness of the driver on a invisible road black spot is enhanced, accordingly the accident rate is reduced, and the road black spot safety is improved.

The embodiment of the invention discloses a method and device for generating a picture search library and a method and device for searching for a picture. The method for generating the picture search library comprises the steps that image data of a currently shot object are obtained; a search recognition picture is generated according to the image data and the search recognition information of the image data; the search recognition picture is provided for the picture search library; the search recognition information comprises the shooting time and shooting spot of the image data. The method for searching for the picture comprises the steps that a target search recognition picture matched with a target picture is searched for in the picture search library; the target search recognition picture is provided for a user, and the target search recognition picture comprises the image data and the search recognition information; the search recognition information comprises the shooting time and shooting spot of the image data. An existing picture search technology is optimized, data sources and data types in the picture search library are enriched, and the growing individualized and convenient picture search needs of people are met.

The invention discloses a charging scheduling system based on an electric vehicle charging priority and a method thereof. The system comprises a child node apparatus and an anchor node device. The sub-node apparatus is installed on a child node charging pile and is used for collecting charging pile data. The anchor node device is installed on an anchor node charging pile and is used for data integration and processing, executing a charging scheduling algorithm, processing user feedback information and carrying out charging scheduling. According to a position of an anchor node, area division is performed. One anchor node manages several child nodes. Data collection and operation efficiency are increased. By using the charging scheduling algorithm, according to information of an electric vehicle and the charging pile, charging priority degree assessments are performed twice; global comparison is performed on a final priority degree assessment value; relative priorities of the electric vehicle on each reachable charging pile are determined so that global solution is realized. By using the system and the method in the invention, a utilization rate of a charging pile resource and charging efficiency of the electric vehicle are increased; and charging system performance of the electric vehicle is improved.

The invention relates to a vehicle behavior monitoring system based on radar and video group, and a realization method thereof. The system comprises multiple sets of monitoring terminal equipment, multiple sets of data communication equipment, data storage equipment, a background data processing server, a vehicle driving state display module and the like; the monitoring terminal equipment is composed of a millimeter wave radar, a high-definition camera, a front-end data processing unit module and a power control module. Compared with the prior art, the system disclosed by the invention realizes the advantage complementation of the millimeter wave radar data and the high-definition video image data on traffic data acquisition by deeply fusing the millimeter wave radar data and the high-definition video image data, so that the detected data type is more comprehensive, and the accuracy, reliability and robustness are further improved by steps, thereby being beneficial to providing technical support for the aspects of traffic control, safety early warning and the like.

The invention discloses a 3D laser and 2D imaging synchronous scanning device and a scanning method thereof. A laser receiving and sending matrix is installed on a 3D laser radar, the point laser receiving and sending matrix and a line scanning imaging sensor are installed on the same rotatable platform in parallel, the height of the point laser receiving and sending matrix and the line scanning imaging sensor is the same, the positions are close or connected, the rotatable platform can drive the point laser receiving and sending matrix and the line scanning imaging sensor to synchronously rotate, the synchronous scanning device further comprises a control device, the control device comprises a synchronous clock module, the synchronous clock module is connected to the 3D laser radar and the line scanning imaging sensor signal, the control device can synchronously send the signal to the 3D laser radar and the line scanning imaging sensor through a synchronous clock module, so that the 3D laser radar and the line scanning imaging sensor can synchronously scan, and therefore the obtained data has synchronism and facilitates the fusion of radar laser scanning data and line scanning image data.

The invention discloses an embedded software reliability accelerated test method, which comprises the following steps of: by establishing a software task profile, randomly extracting and generating a software task sequence as applied complete and valid test input in actual reliability test; and in the test process, counting and collecting task characteristics and task statuses, entering a controlprocess after the test process is stable, applying a test strategy and finally performing engineering assessment on software reliability. In the method, the test strategy in the control process fulfills the aim of rationally, highly efficiently and acceleratedly testing the reliability, and expands the concept in the embedded software reliability test; the software task sequence generated based on the software task profile can satisfy the description and coverage of complex input conditions and ensures the credibility of reliability test data; and the assessment method is independent of the superposed mathematical distribution of failure data, and is applied to the reliability assessment, without overhigh requirement on accuracy, on embedded software.

The invention discloses a digital watermark embedding method for a database. The method comprises the steps of scoring an attribute column of the target database, and according to a scoring result, selecting an attribute of performing embedding; by using a tuple selection algorithm and a binary tree-based histogram shifting algorithm, marking a tuple embedded with a digital watermark, and storingthe position of a mark through a mapping matrix; and according to the mapping matrix, embedding the digital watermark in the target database for multiple times repeatedly by using a watermarking algorithm of the binary tree-based histogram shifting algorithm. The invention furthermore discloses a protection method for the database and a watermark generation and embedding method for the internet car database. Compared with other methods, the method has the advantages that the robustness and imperceptibility of the digital watermark are improved through the algorithm; the attack resistance capability is stronger; the quantity of information which can be used for authentication is higher; and the effect of the digital watermark during specific application is enhanced.

The invention discloses a wireless sensing network node capable of realizing simultaneous access of digital quantity and analog quantity. The node comprises a sensor module, a data processing module, a short-range wireless communication module, a wireless transceiving module and a power supply module. The sensor module is a sensor group composed of a plurality of sensors, the sensor group communicates with the data processing module via a digital quantity and analog quantity multiplex interface, and the digital quantity and analog quantity multiplex interface comprises a sensor input interface, a signal input channel, an automatic distinguishing module for automatically distinguishing the type of the signal input by the signal input channel, a control module, and a digital signal processing module and an analog signal processing module controlled by the control module according to the distinguishing result of the automatic distinguishing module. The invention has reasonable design, convenient network deployment and maintenance, simple operation, good use effects, and high intelligence degree, and can satisfy actual demands of synchronous processing of analog signals and digital signals and simultaneous accessing of multiple sensor signals of different types.

The invention provides a vehicle-mounted terminal data transmission system and method. The vehicle-mounted terminal data transmission system comprises at least one vehicle-mounted terminal, a data acquisition platform server, a Web server, a database and a streaming media forwarding serve; the vehicle-mounted terminal is used for recording traffic data of a vehicle; The Web server can send a datarequest instruction to the vehicle-mounted terminal through the data acquisition platform server, so that the vehicle-mounted terminal sends required traffic data to the Web server through the data acquisition platform server; The data acquisition platform server provides a real-time memory access interface to push the traffic data or stores the traffic data in a database for the Web server to obtain; And the Web server can also obtain real-time video streaming data of the preset vehicle-mounted terminal from the streaming media forwarding server. According to the vehicle-mounted terminal datatransmission system provided by the invention, the efficiency of data sharing among the vehicle-mounted terminal, the data acquisition platform server and the Web server can be improved.

The invention discloses a vehicle data management method and a vehicle data management system, and the method comprises the following steps: acquiring vehicle data information in real time; transmitting the acquired vehicle data information to a background server through a network connection; allocating the vehicle data information received by the background server to a plurality of message queueservers of the background server through a load balancing strategy to perform cleaning and conversion, and outputting the vehicle data information of a preset format; storing the vehicle data information of the preset format to a database of the background server, wherein the vehicle data information comprises vehicle localization position data, vehicle operating state data, vehicle driving posture data, real-time road environment video data during vehicle driving process, driver state image data and vehicle outside illumination intensity data. The method and the system provided by the invention guarantee enough data for following vehicle driving analysis through abundant data types; and by unified processing of the background server, data of various types are integrated into applicable data structures.

The invention relates to air quality monitoring equipment capable of supporting data remote transmission. The traditional equipment has high cost and limited monitoring range. The air quality monitoring equipment capable of supporting data remote transmission comprises a power source management module, an air quality parameter acquisition module, a microprocessor module and a GPRS transmission module, wherein the power source management module supplies power for the air quality parameter acquisition module, the microprocessor module and the GPRS transmission module; a plurality of transducers in the air quality parameter acquisition module output signals to the microprocessor module after passing through an I/V conversion circuit; and the GPRS transmission module is connected with a USART interface of the microprocessor module. The invention has strong real-time, various data types, wide coverage area, strong communication capacity and high transmission speed.

The invention relates to the technical field of data storage and management, in particular to a data index establishment method and device and an index retrieval method and device, and is used for solving the problems that an existing index mode cannot be suitable for a mass data environment and high-efficiency batch deletion is very difficult to achieve. The data index establishing method provided by the embodiment of the invention comprises the following steps: extracting a field value corresponding to an appointed field in a to-be-processed data file; And generating an index file containingan association relationship between a field value corresponding to a specified field in the data file and data file information, the data file information being a data file name and/or a data file storage position.

The invention discloses a wireless sensor node with an automatic inspection function, which comprises a sensor module, a data processing module, a short-range wireless communication module, a wireless transceiver/receiver module, a data memory module, a display unit which synchronously displays the detected information of the sensor module, the inspection result of a sensor activation state and the relevant working parameters of the data processing module, a power module, and an automatic inspection unit which consists of a plurality of sensor activation state detection units, a working parameter detection unit, a timing module, a power detection unit, the timing module and the data processing module and periodically and automatically inspects the wireless sensor node. The wireless sensor node has a reasonable design, the network is convenient to distribute and maintain, the wireless sensor node is simple to operate, and has a good use effect and high intelligent degree, the automatic inspection unit periodically and automatically inspects the wireless sensor node through automatic inspection, all the sensors in the sensor node can be effectively ensured to normally and orderly work, and the inspection effect is directly displayed.

The invention discloses an automatic triggering type Ad hoc network node of a wireless sensor network. The automatic triggering type Ad hoc network node comprises: a sensor module; a short-distance wireless communication module for automatically searching adjacent wireless sensor nodes; a CPU (Central Processing Unit) module; a working parameter detecting unit for detecting the working parameters of monitored equipment in real time; a signal trigger for transmitting the work instruction of a triggering sensor to the CPU module according to information detected by the working parameter detecting unit; an LED (Light Emitting Diode) display unit; a parameter setting unit; and a power supply unit and a wireless transceiving module which are connected with the CPU module. The CPU module conducts two-way communication with an upper monitoring computer through the wireless transceiving module; and the signal trigger conducts two-way communication with the CPU module in a wired or wireless way. The automatic triggering type Ad hoc network node is reasonable in design, convenient to distribute in network and maintain, easy and simple to operate, excellent in using effect, high in intelligent degree and capable of automatically triggering the sensor module by a triggering device which consists of the working parameter detecting unit and the triggering sensor.

The present invention provides a method for quickly constructing a heart coronary vessel recognition data set, comprising: obtaining an original picture; marking blood vessels in the original picture to form a rough-labeled picture; performing pixel-level labeling on a very small amount of original pictures according to the rough-labeled picture. Form a finely labeled picture; change the finely labeled picture from a three-channel image to a single-channel image; binarize the single-channel image and store it as a binarized picture; use the binarized picture and its corresponding original picture as training data, Train the initial network to obtain the first network; input all the original pictures into the above-mentioned first network to obtain the binarized result map; generate pseudo-fine annotations based on the binarized result map and its corresponding rough-labeled pictures Pictures: Create a data set based on original pictures, finely labeled pictures, and pseudo-finely labeled pictures to train the network. This method greatly reduces the cost of manual labeling while ensuring the quality of the data set, and the training speed can be significantly improved.