36results about How to "Facilitate data fusion" patented technology

The embodiment of the present invention discloses a data processing method and device, which are used for performing confidential processing on data used for user portraits, and promoting the realization of user portraits. The method in the embodiment of the present invention includes: acquiring business system data; converting the business system data to obtain converted data, the converted data is data that is confidential and can be used for user portraits; sending the converted data to the portrait platform data, so that the portrait platform performs user portraits according to the conversion data. In this way, after the business system data of the business system data party is confidentially processed, information leakage of sensitive data of these business system data can be avoided, and the converted data processed in this way can still be used for user portraits. On the portrait platform, according to the Transform data for user portraits, and promote the integration of data from the data side of the business system and data from the portrait service provider to achieve user portraits.

The invention relates to a functional SDN northbound interface system and an implementation method suitable for heterogeneous industrial networks, belonging to the technical field of industrial networks. On the basis of fully considering the business characteristics of the industrial network, the present invention concentrates and abstracts the network resources of the industrial wireless network into a virtual resource pool, and performs unified arrangement and integrated management of the virtualized resources of the industrial wireless network and the industrial backhaul network through the resource arrangement unit , so as to provide a basis for the function opening of the northbound interface. The functional SDN northbound interface system designed by the present invention can flexibly provide two levels of functional northbound interfaces, the industrial wireless network functional interface and the integrated management interface, to the upper-layer network managers. At the same time, when accessing a new network, the system only needs to Modifications at the software level are made with high scalability.

The invention discloses a multi-interface network gateway with terminal function for a wireless sensor. The network gateway comprises a processor, an Ethernet communication unit, a serial interface communication unit, a Bluetooth communication unit, a wireless communication unit and a subscriber display unit. The invention also discloses a data transmission method based on the network gateway; data stream transmission is controlled through a data distribution module, thus realizing one-to-multiple and multiple-to-one reliable transmissions. The network gateway is integrated with terminal displaying function, and is capable of data displaying, storing and controlling to the network of the wireless sensor without other terminal units, thus realizing the terminal function of the network gateway. The network gateway is small in size and light in weight and can be effectively applied in outdoor occasions when PCs or large terminal units are inconvenient to carry, solving the problem that conventional network gateways are out of use when no PC or DC electrical source is available; therefore the network gateway accelerates the development of the practicality of the wireless sensor network.

The invention discloses a method for conversion between coordinate systems of two independent systems based on quaternion. The method includes a conversion parameter calibrating process and an information conversion process, wherein the conversion parameter calibrating process includes the steps of fixing markers of the two independent systems, retaining the markers to be relatively still, rotating the markers, obtaining the positional information and space attitude information of the two markers during the motion process, converting the obtained positional information and space attitude information into quaternion, and estimating the conversion parameter with least squares. The information conversion process includes the steps of obtaining the positional information and space attitude information of the marker of one system, converting the obtained positional information and space attitude information into quaternion, and calculating the positional information and space attitude information of the marker in the other system according to the estimated conversion parameters. The conversion of positional information and space attitude information of two systems is possible, which facilitates subsequent data fusion. Calculation is simple and fast, and no extra measuring instrument is needed.

The invention provides a vehicle autonomous navigation method based on image matching / inertial navigation / odometer. Configure an unmanned aerial vehicle equipped with a ground-facing camera on the ground vehicle that needs to be positioned; start the vehicle-mounted inertial navigation / odometer integrated navigation system, and the driver will judge whether the unmanned aerial vehicle has the conditions to take off when the vehicle is in motion; if When the take-off conditions are met, the UAV takes off autonomously and tracks the vehicle autonomously. At the same time, it takes pictures of the ground and uses the captured real-time image to match the reference map made in advance to realize the positioning of the ground vehicle; after obtaining the positioning result, it is sent to the vehicle navigation computer for data fusion; After the vehicle positioning results, the UAV autonomously lands and returns to the vehicle. The present invention proposes a new navigation scheme, which uses a UAV to carry an aerial camera, and performs template matching on the real-time aerial image and the reference gallery, thereby determining the geographical coordinates of the vehicle in the real-time aerial image, and correcting the inertial navigation / mileage of the matching positioning result Calculated combined navigation error.

An attitude sensing device, data fusion, and attitude calculation method, first collect attitude data through an attitude data acquisition module, and transmit the collected attitude data acquisition module to an MCU; the MCU sends the received attitude data to an MPL library; through the MPL library solution to obtain the calculated pitch angle, roll angle and heading angle; sample the heading angle value every 20s, make a difference between the heading angle after each sampling and the calibration value, and accumulate all the differences , to get the accumulated value; subtract the accumulated value from the value of the heading angle collected in real time to obtain the calibrated heading angle, and complete the update of the attitude. The invention is based on the data fusion and attitude dissolution method of the motion digital processing engine, which can effectively suppress the zero drift and temperature drift of the heading angle, and the accuracy can reach 0.1°.

The invention discloses a low-loss temperature and pressure composite sensor air nozzle, comprising a check valve core, a check valve body, a control valve core, a control valve body, a temperature and pressure sensing core, and a bolt; One end of the valve body is connected to one end of the control valve body, and the temperature and pressure sensing core is located in the installation groove of the control valve body; the temperature and pressure sensing core collects the temperature and pressure of the gas to be measured, pressure; one end of the one-way valve spool is connected with one end of the control valve spool, and the other end of the control valve spool is connected with a bolt. In this technical solution, a temperature and pressure sensing core body is arranged in the installation groove of the control valve body. When the gas enters the control valve core and the internal channel of the control valve body, the temperature and pressure of the gas can be detected together, so as to realize Multi-parameter measurement function; and the temperature and pressure sensing core is located inside the valve body of the control valve, which reduces the interference of the external environment to the component during the test process.