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455results about How to "Easy for secondary development" patented technology

LX I embedded type reconfigurable general test platform capable of being used for on-site test

The invention discloses an LX I embedded type reconfigurable general test platform capable of being used for an on-site test. The test platform mainly comprises a core control unit, an FPGA integrated test unit, an instrument function unit, a test program set, a Web server and the like. Modularized hardware design is reliably and tightly connected with a function module through a compact and firm portable machine box. The core control unit finishes control and communication of a whole system. The integrated test unit mainly completes logic functions of test instruments. The instrument function unit mainly completes conversion of signals. On the basis of LX I standard design, the test platform has multiple communication modes, is suitable for mobile tests, and facilitates secondary development. Hardware is designed in a modularized mode, and is compact in structure, small in size and low in weight. Software meets standards such as IVI, SCPI, ATML and the like, and is strong in generality. The instruments have the strong data processing ability and have functions of multi-channel parallel testing and online reconfiguration of the hardware and the software. What is needed is a browser during use of the instruments, the instruments can be operated remotely and the online reconfiguration of the instruments is achieved.
Owner:BEIHANG UNIV

Fused Internet of Things gateway system and method for solving data heterogeneous

The invention relates to a fused Internet of Things gateway system and method for solving data heterogeneous. The system comprises an intelligent sensing layer, an Internet of Things gateway layer and a network layer, wherein the intelligent sensing layer comprises a plurality of sensors responsible for data acquisition; the Internet of Things gateway layer is used for dynamically adapting and controlling the sensors of different types in the intelligent sensing layer, and analyzing and storing the data acquired by the sensors, and then transmitting the data to the network layer; the network layer comprises a data storage server and a driving cloud-side server; the data storage server stores the data received from the Internet of Things gateway layer, the drive cloud-side server is used for storing drive programs of the sensors of different types so that the Internet of Things gateway layer can perform the dynamic adapting and control on the sensors of different types. By use of the gateway system disclosed by the invention, the multisource heterogeneous problem of data acquisition and storage in the Internet of Things gateway are solved, the problems of high equipment cost, complex maintenance, short gateway life, bad system stability and expandability in the upgrade process are solved.
Owner:INST OF INFORMATION ENG CHINESE ACAD OF SCI

Garbage can capable of automatic classifying based on visual recognition and classifying method

The invention discloses a garbage can capable of automatic classifying based on visual identification and a classifying method. The garbage can comprises a garbage throwing opening, a first photoelectric switch sensor, an identifying and classifying tray, second photoelectric switch sensors, sub garbage cans, an image identification component, an STM32 controller, a double-path stepping motor driver and a garbage can shell, wherein the garbage throwing opening is formed in the side wall of the garbage can shell; the first photoelectric switch sensor is arranged in the garbage throwing opening;a plurality of sub garbage cans are arranged in the garbage can shell; a second photoelectric switch sensor is mounted in a can opening position of each sub garbage can; the identifying and classifying tray is arranged in the garbage can shell and is located above the sub garbage cans; the identifying and classifying tray comprises a garbage tray, a V-shaped baffle stepping motor, a camera, a V-shaped baffle, a support frame, a rotary baffle stepping motor and a rotary baffle. According to the garbage can, the camera is used for collecting garbage images; a TensorFlow deep learning frameworkis adopted; through transfer training of a model, the accuracy rate of garbage identification is increased.
Owner:石家庄邮电职业技术学院

Livestock and poultry information sensing robot based on autonomous navigation and map construction method

The invention discloses a livestock and poultry information sensing robot based on autonomous navigation and a map construction method. The livestock and poultry information sensing robot comprises afour-wheel dolly, an autonomous navigation system, a motion module and an information acquisition module. The autonomous navigation system comprises a laser radar, an RGB-D camera, an inertia measurement unit, a speedometer and a master control module. The motion module comprises a DC motor set, a push rod motor and a microcontroller. The information acquisition module comprises a thermal imager,an environment detection sensor module and a wireless transmission module. The method is characterized by controlling the robot to move in an indoor working environment; obtaining ambient informationin the moving process by utilizing the laser radar, the RGB-D camera, the inertia measurement unit and the speedometer; and carrying out data processing to obtain positioning position and constructinga global map. The method can improve positioning precision of the robot and meet application requirements, overcomes the problem of excessive dependence on breeders and realizes automatic detection of the breeding environment, and has the advantages of being high in efficiency, high in economic benefit and wide in applicability and the like.
Owner:ZHEJIANG UNIV

System and method of detecting interference of wireless signal based on spectral analysis

The invention relates to a system and a method of detecting interference of a wireless signal based on spectral analysis. The system comprises a data acquisition unit, a data preprocessing unit, a feature extraction unit, a classification detection unit and a display unit, wherein the data acquisition unit is used for collecting the wireless signal in the environment, carrying out fast Fourier transform FFT on the collected wireless signal to obtain FFT data provided with frequency spectrum information, and transmitting the collected wireless signal to the data preprocessing unit; the data preprocessing unit is used for obtaining time domain information and the frequency spectrum from the collected wireless signal, and transmitting the time domain information and the frequency spectrum to the feature extraction unit; the feature extraction unit is used for carrying out feature extraction on the time domain information and the frequency spectrum which are obtained by the data preprocessing unit, and transmitting the extracted frequency spectrum features to a classification recognition unit; the classification detection unit is used for carrying out training and classification recognition on the frequency spectrum features extracted by the feature extraction unit, and transmitting a result obtained after training and classification recognition to the display unit; the display unit is used for providing an interactive interface for displaying a recognition result.
Owner:XIDIAN UNIV

Multi-sensor combined calibration device and method

The invention provides a multi-sensor combined calibration device and method, and relates to a multi-sensor calibration technology. The problem of multi-sensor combined calibration in the prior art issolved. The multi-sensor combined calibration device comprises a mechanical arm, a sensor fusion frame is arranged on the mechanical arm; a laser radar, a monocular camera and a computer for processing data are arranged on the sensor fusion frame, the sensor fusion frame further comprises a laser radar-camera four-calibration-plate combined calibration target, and the laser radar-camera four-calibration-plate combined calibration target comprises a first calibration plate, a second calibration plate, a third calibration plate and a fourth calibration plate; the central positions of the firstcalibration plate, the second calibration plate and the third calibration plate are marked by dots, and the dots are used for providing feature points for external parameter calibration. According tothe embodiment of the invention, the portable multi-sensor fusion framework is built, so that calibration and secondary development are facilitated; according to the embodiment of the invention, a mechanical arm auxiliary calibration method is used, and intelligent calibration and batch calibration can be realized.
Owner:CHINA JILIANG UNIV

PLC-based two-dimensional motion demonstration platform for teaching and implementation method thereof

InactiveCN101739865ARealize unlimited point expansionEasy for secondary developmentTeaching apparatusAnti jammingElectric machinery
The invention discloses a PLC-based two-dimensional motion demonstration platform for teaching and an implementation method thereof. The PLC-based two-dimensional motion demonstration platform for teaching comprises an upper computer PC (1), a lower computer PLC (2), an X-Y-directional servo driver (3), an X-Y-directional servo motor (4), a two-dimensional mechanical executing mechanism (5) and an input component (6), wherein the X-Y-directional servo driver (3) consists of an X-directional servo driver (301) and a Y-directional servo driver (302); and the X-Y-directional servo motor (4) consists of an X-directional servo motor (401), a Y-directional servo motor (402), an X-directional photoelectric code disc (403) and a Y-directional photoelectric code disc (404). The PLC-based two-dimensional motion demonstration platform for teaching and the implementation method thereof realize the functions of two-axis motion control demonstration and reproduction by utilizing a high-speed counter and high-speed pulse output; a system has the characteristics of small volume, strong anti-jamming capability, convenient function expansion and the like; and through hardware expanding, the current two axes can be expanded to a plurality of axes, which has wide application to the motion control occasions such as a welding robot, a carving machine and the like needing contouring control.
Owner:SANJIANG UNIVERSITY

Anti-4G (fourth generation)-interference Beidou GPS (global positioning system) multi-mode receiving-dispatching integration navigation communication module

The invention discloses an anti-4G (fourth generation)-interference Beidou GPS (global positioning system) multi-mode receiving-dispatching integration navigation communication module, which comprises a Beidou first-generation RDSS (radio determination satellite service) unit, a Beidou second-generation RNSS (radio navigation satellite service) /GPS unit, a power supply processing unit, a connector and a metal box body, wherein the Beidou first-generation RDSS unit and the Beidou second-generation RNSS/GPS unit are both loaded on a PCB (printed circuit board); the power supply processing unit supplies power to the Beidou first-generation RDSS unit and the Beidou second-generation RNSS/GPS unit; a receiving-dispatching processing channel adopts an anti-4G-intererence receiving-dispatching circuit and comprises a low-noise amplifier (LNA), a first-level frequency Mixer1, a first low pass filter (LPF), a second-level frequency Mixer2, a band-pass filter (BPF), a variable gain amplifier (VGA) and a second LPF, wherein all components are successively connected; the signal output end of the second LPF is connected with a baseband processing module; a radio frequency signal IF1OUT output from the first-level frequency mixer1 is input into a first intermediate frequency surface acoustic wave filter IF1SAW; the IF1SAW outputs a frequency radio signal IF1IN to the input end of the first LPF. According to the module, the problem of receiving interference on the Beidou first-generation RDSS by a 4G signal is solved.
Owner:BONA RAINFIELD ELECTRONICS

Measuring method and module for attitude of agriculture machinery vehicle

The invention provides a measuring module and method for the attitude of an agriculture machinery vehicle. The measuring module comprises a gyroscope, a magnetometer and an accelerometer, wherein the gyroscope, the magnetometer and the accelerometer are integrated on a circuit board. The gyroscope is used for measuring the angular velocity, the magnetometer is used for measuring the intensity of the earth magnetic field, and the accelerometer is used for measuring the acceleration. The acceleration can be regarded as a component of the acceleration of gravity under the static condition and the low dynamic condition, and the gradient of a plane can be determined; the heading can be obtained through fusion calculation of the gradient and the magnetometer, an attitude error and a gyroscope zero bias error are estimated through the Kalman filtering algorithm and corrected. According to the measuring module and method, the magnetometer, the accelerometer and the gyroscope are integrated on the circuit board at the same time, fusion calculation is carried out by combining the measured data of the gyroscope, the magnetometer and the accelerometer, the small attitude measuring module low in cost and high in accuracy is developed, the module with the complete attitude measuring function can be conveniently integrated into a larger project, and convenience is brought to secondary development.
Owner:GUANGZHOU HI TARGET NAVIGATION TECH

Condition type triggering high-speed synchronous collecting and recording system with expandable channels

The invention discloses a condition type triggering high-speed synchronous collecting and recording system with expandable channels. The system comprises a clock module, a collection module, a storage module and a mainboard controller. The clock module, the collection module and the storage module are mutually connected with the mainboard controller through a PCIE interface. The clock module can output accurate synchronous clock signals and synchronous triggering signals to drive the collection module to carry out high-speed synchronous collection on input analog signals, the collected data are written into the storage module for permanent storage at a high speed under the effect of the mainboard controller, wherein frequencies of clock signals and sources of triggering signals can be set, and judgment signals output by the collection module are accessed into the clock module for condition type triggering. Compared with the prior art, the method has the advantages that the channels are expandable, synchronous collection and condition type triggering are achieved, collection can be carried out through multiple modes, secondary development is facilitated, the man-computer interaction design is simple, and other advantages.
Owner:NAT UNIV OF DEFENSE TECH

Multipoint touch application program development method supporting user defined gestures

The invention discloses a multipoint touch application program development method supporting user defined gestures, which adopts multipoint touch equipment capable of returning two dimensional coordinate point data of a contact point, and is provided with a tool case which is supplied to a developer and used for achieving multipoint touch application program development. The tool case comprises a gesture identification register module, a gesture definition module, a gesture guiding module and a gesture description and identification module. The developer uses the gesture identification register module to register gesture identification and allocate gesture states, gesture response operation is achieved according to allocated gesture states, and the gesture definition module is used for providing a gesture definition view for the users who complete gesture definition to enable the gesture identification and the defined gesture to conduct mapping. The method can enable the developer to conveniently and rapidly develop multipoint touch application programs and enable the users to define the gestures according to self habits, provided tool case is friendly in interface and strong in interactive performance, and hommization and individuation design thought is reflected.
Owner:HEFEI UNIV OF TECH

Vehicle-mounted equipment implementation method for managing GYK running state data

The invention relates to a vehicle-mounted equipment implementation method for managing GYK running state data. A running state of the conventional GYK cannot be timely known, an alarming event cannot be timely grasped, and the GYK running data cannot be timely uploaded to a remote management server. After being powered on, vehicle-mounted equipment completes system booting and the initialization of hardware peripherals and initializes a global positioning system (GPS) module and a general packet radio service (GPRS) module to start a vehicle-mounted equipment system; after the system is started, the GPS module broadcasts GPS geographic position data which are provided for each application program module to use; GPRS wireless network service is started simultaneously; and after the wireless network service is started, the application program modules start automatic operation. According to the method, an advanced technology of the conventional field of electronic information is fully utilized, and full integration is realized, so that the method can be effectively applied to the vehicle-mounted equipment; and the method can be widely applied to a network transmission technology in the field of computers, and applied to an embedded control system in the field of industry.
Owner:HANGZHOU CHUANGLIAN ELECTRONICS TECH

Java application server and method for processing Web service

The invention discloses a Java application server and a method for processing a Web service, and belongs to the technical field of network. The Java application server comprises a network framework layer, an application container layer, and a page table formwork layer, wherein the network framework layer is used for acquiring a uniform resource locator for accessing to the Web service, wherein the uniform resource locator is sent by a client side. The application container layer comprises an obtaining module and an operating module, wherein the obtaining module is used for locating corresponding relation between the uniform resource locator and service logic according to operation service logic to obtain the service logic, and the operating module is used for operating the service logic to obtain a data model and a view name. The page table formwork layer comprises a searching module and a call output module, wherein the searching module is used for locating corresponding relation between the view name and a view target to obtain view target according to the view name, and the call output module is used for calling a corresponding method of the view target to render and output the data model to the client side to be displayed. The Java application server has large handling capacity, difficulty of deployment of the service logic and operation maintenance is enabled to be low due to a concise structure, and secondary development is easily carried out.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Cloud-storage-based streaming media publication device, system and method

The invention discloses a cloud-storage-based streaming media publication device, which comprises a cloud storage device and a streaming media server. The cloud storage device is used for storing multimedia data. The streaming media server is connected with the cloud storage device through a network, interacts with a client through a real time streaming protocol (RTSP), and comprises a receiving module, a reading and query module and a transmission module, wherein the receiving module is used for receiving a request from the client; the reading and query module is used for reading the multimedia data from the cloud storage device according to the request of the client; and the transmission module is used for packing the read data into a real-time transport protocol (RTP) packet, and transmitting the RTP packet to the client. A multimedia file is acquired from the cloud storage device by using a standard RTSP, so that the characteristics of high capacity, high reliability, high expansibility and the like of the cloud storage device are reserved, the development complexity of the client is lowered, the device is simple in structure, and the use and secondary development of a user are facilitated. In addition, the invention also provides a cloud-storage-based streaming media publication system and a cloud-storage-based streaming media publication method.
Owner:中安消旭龙电子技术有限责任公司
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