237results about How to "Increase hardware cost" patented technology

The present invention provides a display apparatus which enables high-accuracy, hands-free operation, while adopting a low-cost configuration. The display apparatus according to the present invention includes: an obtainment unit that obtains a display element which is information to be displayed to the user; a determining unit that determines a display position of the obtained display element, at which a portion of the obtained display element can not be seen by the user; a display unit that displays the display element at the determined display position; a detection unit that detects a direction of change when an orientation of the user's head is changed; a selection unit that selects the display element to be displayed in the detected direction of change; and an execution unit that executes a predetermined process related to the selected display element.

The present invention discloses a double-computer backing up implementation method, which contains respectively increasing communicating interface on two servers of realizing double-computer backing up, through signalling exchange of main server and standby server to realize two servers main using and standby state switch, through main using server synchronous transmitting service data to standby server to realize two servers data synchronization. The present invention also discloses double-computer backing up system including main using server, standby server and client-side. The present invention provided is free from operation system restriction, capable of operation in different kinds of operation system platform, by software to realize without increasing the hardware cost. The present invention provided system is free from server hard ware restriction, any two kinds server capable of consisting of double-computer standby system with fine compatibility, available single machine system capable of convenient updating to double-computer standby system without sharing storage medium and saving space.

The present invention is directed to a method and system for providing redundancy and resiliency features to network devices, such as switches and routers, that do not have built-in redundancy and resiliency features. Health-check messages are periodically transmitted over a first link that transmits network data. Upon detecting a failure of the first link, transmission of network data is switched to a second redundant link, while health check messages continue to be periodically transmitted over the first link. Upon detecting that the first link has been restored, transmission of network data is switched to the first link.

The invention relates to a method, a mobile terminal and a device for controlling a smart home device as well as a medium. The method comprises steps as follows: acquiring the distance between a userand a target home device, acquiring device information of the target home device when the distance is smaller than or equal to a preset distance, and entering a device control program corresponding tothe target home device to control the target home device. The medium stores a computer program used for executing steps of the method. The mobile terminal comprises the storage medium and a processor, and the processor executes the computer program of the storage medium to implement the steps of the method. By getting close to the target home device, acquiring the device information of the targethome device and entering the device control program of the corresponding target home device according to the device information, the user operation is simplified, the use experience of the home device is improved, functions of the home device can be enriched through hardware reuse of the mobile terminal without remarkable increase of the hardware cost of the home device, and the design difficultyand the complexity of the home device are reduced.

A wireless air-volume damper control system for regulating air balance in a ducted network, the damper control system having one damper or more damper units installable in the ducted network at locations where air flow in the terminal can be adjusted, the damper units each having a damper blade with a motor to pivot the blade, a power source for powering the motor and pivoting the blade, a receiver and electronic circuitry that operates the motor in response to signals received by the receiver with a portable remote controller having inputs controls and a transmitter that transmits signals to the receiver for operation of the damper unit and a flow volume measuring device for measuring the volume of air flowing in the terminal, the airflow being adjusted by signals from the transmitter of the remote controller in response to measurements from the flow volume measuring device.

The invention discloses a method and device for measuring the frequencies of high-frequency cosine signals under the undersampling rate, and relates to the field of digital signal processing. By combining the type of the zero crossing point with the distribution characteristic of apFFT phase spectrums, L spectrum position index values are selected from 2L peak value magnitude spectrum positions; according to the remainder selecting result, each apFFT phase spectrum is corrected through the all-phase ratio interpolation method so that the frequency of the apFFT phase spectrum can be estimated; the frequency estimation value obtained after each apFFT phase spectrum is corrected is used as a remainder, the remainders are processed according to the Chinese remainder theorem of the closed analysis form, and the frequencies of the original high-frequency signals are reconstituted through the frequency estimation values. According to the method and the device, the frequencies of the multiple paths of high-frequency cosine signals under the undersampling rate are measured, and the measuring range of the frequencies of the high-frequency signals is greatly widened; the novel spectrum correction method is adopted, and therefore the measuring accuracy of the frequencies of the high-frequency cosine signals is improved, and novel anti-noise performance of the high-frequency cosine signals under the low undersampling rate is ensured.

The invention discloses a flexible robot posture measurement method and relates to the field of robot vision measurement. According to the flexible robot posture measurement method, the initial posture information is obtained, extended kalman filtering is performed on measured data, so that the relative posture information of a flexible robot and a charging head is obtained, and the expected speedof the tail end of a mechanical arm is calculated according to the relative posture information, and then motions of all joints of the flexible robot are planned, so that precise aligning to the charging head is performed; and by means of introducing of the flexible robot, the working space of a charging robot is enlarged and the movement flexibility of the charging robot is improved, furthermore, the multiple-freedom-degree redundancy of the flexible robot is quite suitable for an unstructured measurement environment, and influence of past-time historical cumulative measurement data on the subsequent motion process of the flexible robot is added to the measurement result through the extended kalman filtering, the corrected posture information after compensation is obtained, the flexiblerobot posture measurement method and a device have high calculation accuracy, addition of the hardware cost is not needed, the posture information can be obtained just needing one camera, the measuring system cost is reduced, and the posture measurement accuracy is improved.

A virtual machine system supporting trusted computing includes a virtual machine monitor, a hardware and multiple operating systems (OSs). Said multiple OSs include at least a trusted OS, and at least a distrusted OS, a redirecting pipe is set in the virtual machine monitor, the redirecting pipe is adapted to redirect an I/O instruction from the distrusted OS to the trusted OS. Wherein, the trusted OS checks the trusted degree of a procedure information of the distrusted OS, and sends to the hardware an I/O instruction that corresponds to trusted procedure information confirmed via the trusted degree check, transferred via the redirecting pipe and came from the distrusted OS, performs an I/O operation by the hardware.

The invention discloses a method for improving communication energy efficiency based on antenna selection in a large-scale MIMO system. The method comprises the following steps: S1, establishing a system power consumption model according to a system channel status condition, transmission link power, receiving link power and conversion efficiency, and performing the channel estimation to obtain a channel status, and feeding back the channel status to a base station to determine the minimum capacity requirement at a user side and compute the minimum antenna number; S2, computing the antenna number with the optimal energy efficiency by use of an improved search method according to the system power consumption model and the minimum antenna number; S3, obtaining a sub-set more than the antenna number with the optimal energy efficiency by use of the maximum norm method, and then selecting an antenna array with the antenna number with the optimal energy efficiency by use of a successive subtraction method in the sub-set. Compared with the traditional antenna selection algorithm, the method disclosed by the invention has higher system capacity and lower computing complexity, the communication energy efficiency of the large scale MIMO system can be improved, and the performance of the system is improved.

In the present invention, an input and/or output interface of at least one of a plurality of processing units forming a data processing system is designated independently of timing of execution of the processing unit, so as to allow the plurality of processing units to define various data paths at the program level. The present invention makes it possible to flexibly execute individual complicated data processes with hardware at a high speed without having various dedicated circuits fixed specifically to the respective data processings.

The invention discloses a method for restraining torque ripple of a permanent magnet motor based on direct torque control. The direct torque control strategy is adopted in the permanent magnet motor, an additional harmonic torque is directly added based on a given electromagnetic torque so that amplitudes of fundamental components and higher harmonic components in the additional harmonic torque and a position torque are equal and the opposite phases of the fundamental components and the higher harmonic components are opposite and are counterbalanced so as to restrain the torque ripple. The invention is suitable for manufactured motors or purchased finished motors, and particularly permanent magnet motors with larger position torque. The invention has the advantages of low cost by only modifying the control software instead of increasing a drive control cost of the motor, and simplicity, validity and good universality.

A computer system comprises a processor unit arranged to run a hypervisor running one or more virtual machines; a cache connected to the processor unit and comprising a plurality of cache rows, each cache row comprising a memory address, a cache line and an image modification flag; and a memory connected to the cache and arranged to store an image of at least one virtual machine. The processor unit is arranged to define a log in the memory and the cache further comprises a cache controller arranged to set the image modification flag for a cache line modified by a virtual machine being backed up, but not for a cache line modified by the hypervisor operating in privilege mode; periodically check the image modification flags; and write only the memory address of the flagged cache rows in the defined log.

The present invention discloses a control method, an apparatus and a system for a computer terminal, wherein, the method comprises: detecting a contact to a touch-sensitive display of a hand-held electronic terminal; judging if a contact attitude of the contact matches with a preset contact attitude; if yes, generating a control command, which is used for controlling the computer terminal to execute a mouse click operation and/or a mouse cursor moving operation, corresponding to the contact attitude and sending the control command to the computer terminal. Through the method, the apparatus and the system in the invention, a mouse function is realized using the hand-held electronic terminal and user experience of the hand-held electronic terminal is enhanced without increasing hardware cost.

There is provided a device control apparatus including a transmission signal input/output unit for receiving a signal including a control signal for controlling an internal state from another device or outputting the signal to the other device, an application acquisition unit for properly accessing an application server over a network and properly acquiring the application, a display control unit for controlling a display based on the application acquired by the application acquisition unit, and an operation control unit for executing the application acquired by the application acquisition unit and controlling an operation of the other device connected to the transmission signal input/output unit. The operation control unit permits the other device to transmit its status upon initiation of the execution of the application acquired by the application acquisition unit, and prohibits the other device from transmitting the status upon termination of the application execution.

An embodiment of the invention discloses a display method for a virtual reality device. The method comprises the steps of tracking eyeballs of a current user in real time; and when it is detected that the eyeballs move, generating a driving instruction for enabling a driving part to drive a screen to move according to a moving direction of the eyeballs, thereby removing black edges of the virtual reality device. According to the technical scheme, the screen is controlled to correspondingly move when the eyeballs move, so that the phenomenon of the black edges of the VR device is effectively eliminated, the immersion of the user is improved, the reality sense of experiencing VR by the user is improved, and the usage experience of the user is improved. In addition, embodiments of the invention provide a corresponding realization apparatus and the virtual reality device, aiming at the display method for the virtual reality device. The method is more practical. The apparatus and the virtual reality device have the corresponding advantages.

The invention discloses a Doppler shift measuring method and a device thereof. The Doppler shift measuring method comprises the steps of detecting the same moving target through L branches of local receiving antenna arrays of different low frequency bands, receiving and obtaining L branches of SAR signals, and storing the L branches of SAR signals; carrying out fast Fourier transformation and Hanning double-window all-phase fast Fourier transformation on the L branches of SAR signals to obtain a magnitude spectrum and a phase spectrum respectively; carrying out spectrum correction on the peak value position through the phase difference frequency correction method to obtain corrected peak value position estimation and then obtain remainder information; according to the remainder information obtained through spectrum correction of each branch, processing remainders according to the Chinese remainder theorem of the closed analytical form to reconstruct Doppler shift estimation of target signals. According to the device, a radar detects a target to be detected to obtain L branches of SAR values, the SAR values enter a DSP in a parallel digital input mode and are processed by the DSP to obtain Doppler shift estimation of the moving target to be detected, and finally, Doppler shift values are displayed by means of a drive and a display module of the drive.

The invention provides a method and device for processing hash collisions and switching equipment. The method comprises the following steps: determining a media access control MAC address that has thehash collisions; storing table entry information of the MAC address in a user-defined forwarding table L2-USER-ENTRY of a switching chip; and when a message which takes the MAC address as a destination address is received, forwarding the message by querying the table entry information of the MAC address from the L2-USER-ENTRY table. The method for processing the hash collisions provided by the invention solves the problems that the prior art needs to modify hardware design and the cost is increased in response to the hash collisions, and can effectively alleviate the hash collisions of the MAC address without modifying the hardware design and increasing the hardware cost.

The invention discloses an alarming system for locking a child in an automobile by mistake and relates to the technical field of safety early warning of the automobile. The alarming system for locking the child in the automobile by mistake comprises a seat passenger detection system, a sound and light alarming control system and an Internet of Vehicles system. The seat passenger detection system is used for detecting and judging types of passengers on seats in the automobile, so as to judge whether the child is locked in the automobile by mistake. The sound and light alarming control system is used for sending out sound and light alarming information to the passengers outside the automobile when judging that the child is locked in the automobile by mistake. The Internet of Vehicles system is used for sending a message with the content that the child is locked in the automobile by mistake to a cell phone of a driver through a network after the alarming system judges that the child is locked in the automobile by mistake and the child is still not rescued after the sound and light alarming control system alarms. According to the alarming system disclosed by the invention, hardware cost is not increased and three grades of alarming prompts can be provided; the alarming system has the effect of preventing tragedies from occurring and conditions that the child is rescued through damaging manners of crashing glass and the like are reduced; the benefits of an automobile owner are effectively protected and the alarming system has a relatively good application prospect in the future.