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4085results about How to "Reduce hardware costs" patented technology

Posting/subscribing system for adding message queue models and working method thereof

The invention provides a posting/subscribing system for adding message queue models and a working method of the posting/subscribing system. The system comprises a distributed message-oriented middleware server-side cluster, a client-side cluster and a distributed coordinate server cluster. Service nodes in the message-oriented middleware server-side cluster are composed of corresponding modules of an original posting/subscribing system, and the function of the message-oriented middleware server-side cluster is the same as the information transferring relation; a client side is simultaneously provided with a calling interface of a posting/subscribing model and a calling interface of a message queue model which are used for achieving the purpose that a user can select and use the two different message transferring models directly without transforming the bottom layer middleware, so that a coordinate service module and a message processing module are additionally arranged on the client side based on an original framework. The system supports the posting/subscribing message transferring model and the message queue message transferring model simultaneously and guarantees that the availability, flexibility and other performance of the two models are all within the acceptable range, and the problem that it is difficult to transform the bottom layer message transferring model for the user is better solved.
Owner:BEIJING UNIV OF POSTS & TELECOMM

DC frequency converting air-conditioner compressor intelligent controller and control method thereof

The invention provides an intelligent controller used for a direct current (DC) frequency-conversion air conditioner compressor and a technical proposal of the control method thereof; the hardware proposal comprises a rectifier filter circuit and a power module which are electrically connected sequentially; the rectifier filter circuit (220) is also electrically connected with a single DSP controller used as a core processing unit by a switch power supply (240); the single DSP controller is also respectively and electrically connected with the power module, a communication isolation circuit which is used for communicating with the indoor machine of the air conditioner, a fan driving circuit (280), and a temperature sampling circuit (270); the control method comprises the steps as follows:the control software is embedded in the DSP controller; by a control type of dual close-ring FOC no-sensor magnetic field vector, the current ring at the internal ring realizes the decoupling controlto the driving current of the permanent magnetic synchronous motor of a compressor and indirectly controls the output torque of the motor; the speed ring at the external ring is used for controlling the working frequency of the compressor, thus not only meeting the stable requirement during fixed frequency but also meeting the dynamic response during the frequency conversion; and the control software comprises a primitive recursive function and a main interrupt function.
Owner:宁波德业变频技术有限公司

Unmanned aerial vehicle capable of indentifying gesture and identifying method thereof

The invention relates to the technical field of unmanned aerial vehicle control and computer vision combination, and discloses an unmanned aerial vehicle capable of identifying a gesture. The unmanned aerial vehicle specifically comprises an image acquisition device, an image processing module, a gesture identifying module and a gesture translator which are arranged on the unmanned aerial vehicle, wherein the image acquisition device is used for acquiring an image in a visual angle range; the image processing module judges the existence of a person in the image according to the acquired image, and starts the gesture identifying module when the person exists in the image; the gesture identifying module identifies the gesture of the person in the image according to the gesture of the person in the image and a pre-established gesture motion model of the person; the gesture translator translates the gesture of the person in the image into a control command of the unmanned aerial vehicle, and transmits the control command to the unmanned aerial vehicle. Gesture identification is introduced into the control of an unmanned aerial vehicle, so that the hardware cost of the unmanned aerial vehicle can be reduced; the operating enjoyment of the unmanned aerial vehicle can also be increased; the interaction between the person and the unmanned aerial vehicle is enhanced.
Owner:CHENGDU TOPPLUSVISION TECH CO LTD

Intelligent household electric appliance system based on ZigBee and page generation and implementation method thereof

The invention provides an intelligent household electric appliance system based on ZigBee and page generation and an implementation method thereof, wherein the system comprises a computer, an embedded Web gateway and a plurality of terminal devices. The embedded Web gateway comprises an ARM (Advanced RISC Machine) microprocessor, a Flash SDRAM (synchronous dynamic random access memory), a time circuit, a power circuit, a network card interface and a ZigBee coordinator module, wherein the automatic generation of the household electric appliance control page is achieved based on the embedded Web server. The ZigBee coordinator module is wirelessly connected with the terminal devices via a ZigBee protocol for transmitting operation instructions and uploading the date of the terminal devices. The terminal devices receive the gateway instructions, execute the control instructions and unload the operation state of the devices and the environment parameter data. The computer remotely accesses the embedded Web gateway via the internet so as to obtain the household electric appliance control page, to manage the names of the terminal devices and to check and control the operation state of the devices and the environment parameter.
Owner:SOUTH CHINA UNIV OF TECH

Method for achieving control of wirelessly shared and displayed pages between electronic devices

The invention relates to a method for achieving control of wirelessly shared and displayed pages between electronic devices. In the method, a page processing electronic device is connected with a page displaying electronic device through a wireless signal, the page displaying electronic device sends a display content request to the page processing electronic device. The page processing electronic device processes corresponding contents into page data suitable for being displayed by the page displaying electronic device according to the display content request and sends the page data to the page displaying electronic device in a wireless mode to be displayed. By utilizing the method, the page processing electronic device with strong data processing capability and the page displaying electronic device with good displaying effect are combined for use, the pages are generated by utilizing the page processing electronic device and shared to the page displaying electronic device to be displayed, thereby saving the hardware cost of the page displaying electronic device and providing best reading experience for users. In addition, the method for achieving the control of the wirelessly shared and displayed pages between the electronic devices is simple in achieving mode and wide in application range.
Owner:SHANGHAI BIBANG INFORMATION TECH

Industrial robot capturing method based on monocular camera and three-dimensional force sensor

The invention discloses an industrial robot capturing method based on a monocular camera and a three-dimensional force sensor. The method comprises the steps that the monocular camera and the industrial robot are calibrated, and the three-dimensional force sensor is initialized; the monocular camera acquires an object image, an upper computer conducts image processing and calculates the position information of an object, the robot is controlled to move to a position above the object according to the position information, and then the robot moves downwards vertically till making contact with the object to be captured; the three-dimensional force sensor senses the contact force information between the tail end of the robot and the surface of the object, the upper computer controls the industrial robot to stop moving according to contact force information and calculates the pose increment of the tail end of the robot, the posture of the robot is adjusted according to the pose increment till a pneumatic sucker at the tail end of the robot is attached to the plane of the object to be captured, and the pneumatic sucker acts to achieve capturing. By the adoption of the method, objects placed obliquely in a messy mode can be captured, and complexity of camera calibration and object space pose estimation is reduced.
Owner:HUAZHONG UNIV OF SCI & TECH

Method for the operation of an antenna group having a plurality of transmitters and a plurality of receivers and associated apparatus

The present invention relates to a method for the operation of an antenna group (1) having M≧2 transmitters and N≧2 receivers (3) for the digital beamforming. In the method, a coherent transmit signal is transmitted in a transmit-receive-cycle via each of the M transmitters (2) into an area to be monitored, and a coherent receive signal from the area is recorded by each of the N receivers (3) for each transmit signal so that M·N receive signals are obtained. To each receive signal, a combination of the respective transmitting transmitter (2) and the respective receiving receiver (3) is allocated. The M·N receive signals are processed by means of digital beamforming to obtain spatial information about objects in the area to be monitored. In the method, each of the M·N receive signals is multiplied during processing by an amplitude factor which is individually allocated to the respective combination of transmitter (2) and receiver (3), wherein the amplitude factors are selected such that an increase of the signal dynamic range at the digital beamforming is achieved. The method and the apparatus formed for the execution of the method allow a high angle resolution and, at the same time, a high signal dynamic range.
Owner:KARLSRUHER INST FUR TECH
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