54results about How to "No need to change the hardware structure" patented technology

The invention discloses antenna beam tracking device and method of a moving communication satellite communication system. The antenna beam tracking device comprises a geographical position detection device, a carrier gesture detection unit, a signal intensity detection unit, a signal conditioning circuit and a master control computer, wherein the master control computer controls a servo driver; and the servo driver controls an azimuth and pitching motor. The antenna beam tracking method comprises the following steps of: 1, initially capturing a target satellite; 2, tracking: setting initial parameters, storing and updating the initial parameters in real time, generating simultaneous disturbance random vectors, driving disturbance, measuring the intensity of received signals, estimating gradient, determining tracking error signals, regulating antenna beam pointing directions, and judging the received signals; and 3, recapturing. The invention has the advantages of simple design, low cost, system implementation without changing the hardware structure of an original tracking system, easy operation, high tracking accuracy and fast tracking speed and overcomes the defects of inconvenient operation, complex tracking step, lower tracking accuracy and tracking speed, and the like of the traditional method.

The invention discloses a charge control method and system for a low-voltage storage battery of an electric automobile, and a vehicle control unit and relates to the technical field of electric automobile vehicle control. The charge control method comprises the steps that after the electric automobile is started, the vehicle control unit controls a DC / DC convertor to start, and the low-voltage storage battery is precharged; after the low-voltage storage battery is precharged, the vehicle control unit controls the DC / DC convertor to stop, and voltage of the low-voltage storage battery is monitored; the vehicle control unit determines the battery state of the low-voltage storage battery according to the monitored voltage of the low-voltage storage battery; and according to the battery state of the low-voltage storage battery and / or the current operating state of the electric automobile, the DC / DC convertor is controlled to start or stop, and intermittent charge for the low-voltage storage battery is achieved. Through charge control over the low-voltage storage battery, the energy utilization ratio of the electric automobile is increased, and the service life of the low-voltage storage battery is prolonged.

The invention discloses a robot collision detection method and device. The method comprises the steps that according to parameters on a target joint, a predicted driving moment of the target joint isdetermined, and an actual driving moment of the target joint is obtained; according to the specific value of the actual driving moment and the predicted driving moment, whether a robot collides or notis judged. Accordingly, a sensor does not need to be additionally arranged, the hardware structure of the robot does not need to be changed, the system development cost is reduced, and the technicalproblem that in the prior art, the sensor is used for detecting robot collision, and then the robot cost is high is solved.

The invention discloses a method for modeling a background based on a camera response function in an automatic gain scene, which comprises the following steps of: performing automatic gain progressiveness-based analysis to obtain a roughly divided background area, obtaining low-noise training data by using a joint histogram method, and performing recovery once to obtain a globally optimal camera response function by the method based on maximum likelihood estimation and parameter constraints; online calculating a gain ratio frame by frame by utilizing correlation between a foreground and background difference and the gain ratio and the homography of a grayscale difference function relative to the gain ratio; and if the gain ratio is not 1, performing updating to obtain a background reference frame the same as a current reference frame by using the camera response function and the gain ratio, otherwise determining the background reference frame is unchanged, and obtaining the background reference frame with a gain coefficient the same as that of the current frame along with the change of the gain coefficient of a camera. By the method, the shortcomings of high background change speed, caused by difficulties in realizing automatic gain along with the camera, of the conventional methods are overcome, thereby ensuring high-efficiency motion detection.

The technical scheme of a money withdrawing and transaction method without a bank card includes that when handling a bank card in a bank, a client signs a treaty that money withdrawing and transaction can be carried out without the bank card with the bank, a series of passwords is appointed to be relevant to bank card numbers of the client and information stored in the bank card, the group of passwords is passwords without the bank card and replaces the function of the bank card, and transaction passwords with 6 numbers are further set. The passwords without the bank card and the transaction passwords are corresponding to accounts of the client and are stored in a data base of a bank server. When a user withdraws money and transacts on a bank terminal, \ the terminal reminds the user of inserting (swiping ) the card, the user presses a determining button, a dialog box reminding the user of inputting the passwords without the bank card appears on a screen of the bank terminal, after the passwords without the bank card is input correctly by the client, a dialog box reminding the user of inputting the transaction passwords appears on the screen of a bank terminal system, after the transaction passwords of the client is input correctly, a rest process of money withdrawing and transaction is achieved, and money withdrawing without the bank card and transaction without the bank card are achieved. A bank computer system automatically sends information of the amount of money withdrawing or information of failure transaction to a mobile phone of the client.

The invention discloses a multichannel target detection method based on channel optimized selection and belongs to the field of target detection, and especially relates to the technical field of multichannel target detection in a multi-transmitter and multi-receiver radar system. The method comprises: designing a multichannel detector structure based on a generalized likelihood ratio (or Rao, Wald) criterion; sorting the detection statistical magnitudes of the channels (from small to large); by using sequential detection idea, circularly determining whether the joint detection statistical magnitudes of the last n channels exceed threshold values until a target is detected. For a conventional distributed radar system, the structure of a detector is not required to be changed. The method is low in realization expense and low in complexity, and may obviously improve an effect of detecting an invisible target.

The invention relates to an inclination plane scanning method based on two wind-measurement laser radars, which comprises the steps of calculating the coordinates of wind-measurement laser radars A, B and a target point C, and thus acquiring a unit normal vector p(u, v, w) of a plane in which the three points A, B, C are located; calculating attitude variables of the two wind-measurement laser radars according to the vector p and a Euler formula, wherein the attitude variables comprise a rolling angle, an azimuth angle and a pitch angle; thus adjusting the attitude of the two laser radars according to the three acquired attitude variables with the sequence being the rolling angle, the azimuth angle and the pitch angle; synchronizing the system time of the two wind-measurement laser radars, and setting a pitch angle, a scanning range and a scanning speed of a scanning rotating mirror; and enabling the two laser radars to operate simultaneously and perform wind speed measurement. The inclination plane scanning method a problem of data space mismatch of a traditional scanning method under the premise of not changing a hardware structure of a wind-measurement laser radar system, is simple to operate and easy to implement, truly gives play to advantages of the two wind-measurement laser radars in measurement for the wind speed and the wind direction, and thus improves the measurement accuracy.

The invention provides a start-stop control method of a hybrid special engine, wherein the start control includes quickly starting the engine by using a high electric motor auxiliary torque backhauling; The auxiliary torque of the control motor decreases slowly after being halved. Controlling the engine to inject fuel; The auxiliary torque of the control motor is gradually reduced to 0, and the engine catches fire steadily. The invention improves the transient working characteristics of the hybrid special engine by optimizing the motor torque auxiliary control process and reasonably utilizingthe capability of multiple injections of the advanced fuel injector. The invention does not need to change the engine hardware structure, and has the advantages of low cost and convenient application.The engine speed is raised to the target speed which is much higher than the traditional speed by using the high electric motor auxiliary torque to start the engine quickly, which greatly reduces thefuel consumption during the starting process and further shortens the light-off time of the after-treatment system. The engine quick start process takes less than 10 engine cycles, significantly reducing the number of incomplete combustion cycles and thus reducing unburned HC emissions.

The invention discloses a measuring method and system of the blast capacity of an inlet of a power station coal mill. The method comprises the steps of building a mechanism model of the blast capacityof the inlet, wherein in the mechanism model, there is a corresponding relation between the blast capacity of the inlet and the pressure difference between an outlet and the inlet of the coal mill; determining the ratio coefficient based on calculation of an auxiliary formula of the blast capacity of the inlet of the coal mill, and building an inlet blast capacity mathematical model of the coal mill based on the mechanism model; conducting empirical correction on the inlet blast capacity mathematical model by comparing the model with a hardware measurement value; meanwhile, regarding the inlet blast capacity calibration coefficient as the model gain of the mathematical model. The measuring method is not influenced by factors like on-spot flow fields and pipelines, the reaction is sensitive, the instantaneous change condition of the blast capacity in an air channel of the inlet of the coal mill can be timely reflected, and operating personnel conveniently conduct adjustment and next automatic control; the fault rate is low, the mathematical model is built after a large quantity of experiments and long-term observation, and the measuring precision is high; new measuring points do not need to be arranged, the hardware structure of a coal mill system does not need to be changed either, and the measuring method has universality.

The invention discloses a method and a system for chromatic aberration correction of equipment. The method comprises the following steps of obtaining a two-dimensional index value corresponding to each pixel of a digital image; obtaining a red index value, a green index value and a blue index value, which are corresponding to each pixel after chromatic dispersion through a lens; sampling the digital image to obtain a red component value, a green component value and a blue component value of a color value of each pixel after chromatic dispersion; computing the color value of each pixel after chromatic dispersion to obtain a digital image after chromatic dispersion; and observing the digital image after chromatic dispersion through the lens. The image has a chromatic dispersion effect, when eyes observe the image through the lens, the chromatic dispersion effect on the image and the dispersion characteristic of the lens cancel out, so that the image seen by the eyes is a normal image without the chromatic dispersion, the eyes cannot observe the chromatic dispersion, the user experience is improved and the competitive power of the equipment is improved; and modification of a hardware structure of the equipment is not needed, the cost is lower and the method and the system are easy to implement.

The invention relates to an image super-resolution reconstruction method based on learning. A first resolution image and a second resolution image are trained so as to form an image learning dictionary; block division is performed on an image to be reconstructed so as to form multiple image blocks to be reconstructed; an image information content fixed threshold is determined according to the second resolution image; if the information content of the image blocks to be reconstructed is greater than the fixed threshold, image reconstruction is performed according to the image learning dictionary so as to form a first reconstruction subarea; or image reconstruction is performed according to a double cubic interpolation algorithm so as to form a second reconstruction subarea; and imaging splicing is performed on the first reconstruction subarea and the second reconstruction subarea so as to obtain a super-resolution reconstruction image. According to the image super-resolution reconstruction algorithm based on learning, real-time image resolution reconstruction is realized, and data dimension reduction is performed in the reconstruction process by using the KPCA method; and the imaging system hardware structure does not need to be changed so that the method has the advantages of low cost and high economic benefit.

The invention relates to a device and method for controlling a television to achieve remote control operations through an intelligent handheld terminal. The device for controlling the television to achieve the remote control operations through the intelligent handheld terminal comprises a handheld intelligent terminal device and a television, wherein the handheld intelligent terminal device communicates with the television through a transmission unit. By means of an existing intelligent handheld terminal device such as a mobile phone and a tablet computer, the remote control operations of the television are achieved, and the troubles of a remote controller are omitted. According to the method, the hardware structure of the existing intelligent terminal device does not need to be changed, and people only need to install special application programs on the terminal device such as the mobile phone. Meanwhile, the hardware structure of the television does not need to be changed, and people only need to install application programs on the television. The application programs can be downloaded in application stores according to needs.

The invention discloses a vehicle A column image developing device capable of collecting following sight, which comprises flexible OLED screens, an eyeball tracking module, an exterior scene collecting module and a central processing unit, the flexible OLED screens are respectively mounted on A columns on two sides in a vehicle, the eyeball tracking module is mounted on the inner wall of the vehicle in front of a driving position, and the exterior scene collecting module is mounted on the inner wall of the vehicle in front of the driving position. The eyeball tracking module and the exterior scene acquisition modules are installed on two sets of rearview mirrors outside an automobile respectively, the central processing unit is packaged in the automobile, the eyeball tracking module and the exterior scene acquisition modules are electrically connected with the central processing unit, the central processing unit is electrically connected with the flexible OLED screen, and the flexible OLED screen is electrically connected with the eyeball tracking module and the exterior scene acquisition modules. The A-column blind area image is obtained according to the head posture and the eye position of the driver, and the problems that an existing A-column blind area eliminating system cannot dynamically display the blind area image according to the sight change of the driver, and a certain angle exists between an image boundary and an external actual image are solved.

The invention discloses a communication method, a device and a system based on radio frequency identification system. The communication method, device and system are used for achieving both-way communication between an electronic tag and a reader in the radio frequency identification system, saving battery energy consumption of an active electronic tag, and guaranteeing communication stability between the electronic tag and the reader. The method includes steps of receiving data frames sent by the reader during a current inventory cycle, analyzing the data frames and extracting a frame number from a pre-set field, calculating a required waiting time of the current inventory cycle entering a channel idle state based on the extracted frame number, choosing a slot time from slot times contained in the current inventory cycle while determining the reader is in the channel idle state, and sending a message to the reader based on the chosen slot time. The invention discloses a communication device based on radio frequency identification system and a communication system based on radio frequency identification at the same time.

The invention relates to a slide transition technology, in particular to a technology for slide transition through an intelligent terminal. A system for performing the slide transition through intelligent terminal gravity sensing comprises a gravity sensing device and a computer module, wherein the gravity sensing device is communicated with the computer module through a transmission unit. The gravity sensing device comprises a gravity sensing unit, a control unit, a sending unit and an instruction converting unit, wherein the gravity sensing unit, the sending unit and the instruction converting unit are respectively connected with the control unit. The computer module comprises a receiving unit and a slide operating unit, wherein the receiving unit is communicated with the sending unit through a transmission unit. A hardware structure of an existing intelligent terminal device is not required to be changed, and only specific application program is required to be installed on a mobile phone and other terminal devices.

The invention provides an automatic spectrum further sensing method, an automatic spectrum further sensing system, a computer readable storage medium and a terminal. The automatic spectrum further sensing method comprises the steps as follows: 1, a cognitive user uses at least two monitoring antennas to monitor the transmission situation of a main user to acquire monitored results of the monitoring antennas or the collected monitored content; the transmission situation of the main user comprises a communication signal transmitted currently or a communication signal that is not transmitted currently by the main user; and 2, the cognitive user performs comprehensive decision making according to the monitored results or monitored content of the monitoring antennas, so as to judge whether to execute the automatic further sensing of the spectrum. According to the method, the system, the medium and the terminal provided by the invention, the judgment state distinguishing granularity of spectrum sensing can be significantly enhanced, compared with the existing sensing technology, the method significantly improves sensing accuracy under equal system parameters; the method is wide in application range, applicable to various types of spectrum sensing technologies, easy to implement without changing the hardware structure of the existing system, and convenient for actual popularization and application

The invention discloses an image processing method and device and electronic equipment, and belongs to the technical field of image processing. The problem that the quality of images shot by electronic equipment is poor can be solved. The method comprises the following steps: acquiring an image acquired in real time through an image sensor; determining a to-be-stored image and a to-be-previewed image through a central processing chip according to the image acquired in real time; performing enhancement processing on the to-be-stored image and the to-be-previewed image through an image processing chip; storing the enhanced image through a memory, and displaying the enhanced image to be previewed on a display screen.

The invention relates to an NMOS (N-channel metal oxide semiconductor) linear array image sensor with a segmental integral reading circuit. Output signals are connected with a video signal line through a gating switch, and bias voltage is connected with an output signal end through a series resistor; when a reading switch of a certain image element is on, if a corresponding gating switch is off, a circuit is in an open-circuit state, signals in the image element cannot be output to a signal output end, and the bias voltage cannot perform charge resetting on a circuit inside the image sensor; if the gating switch is on, the signals in the image element can be output to the signal output end, and the bias voltage can perform charge resetting on the image sensor. The NMOS linear array image sensor can realize integration of input light signals at different integral time through different image elements, namely a segmental integral function.

The invention relates to a device and method for using a handheld terminal provided with a touch tablet as an intelligent television mouse. The device for using the handheld terminal provided with the touch tablet as the intelligent television mouse comprises a handheld intelligent terminal device and a television, wherein the handheld intelligent terminal device communicates with the television through a transmission unit. By means of an existing intelligent handheld terminal device such as a mobile phone and a tablet computer, mouse operation of the television is achieved, and the troubles of a remote controller are omitted. According to the method, the touch tablet of the existing intelligent handheld terminal device is effectively used, and a user can finish mouse control of the television by operating the touch tablet.

Embodiments of the invention provide a terminal and a display method thereof. The method comprises the steps of uninstalling drivers of a first screen and a second screen, loading a driver for driving the first screen and the second screen to be synthesized and displayed as a third screen, and sending a corresponding notification; obtaining previously kept activity stacks of the first screen and the second screen according to the notification, and synthesizing the activity stacks of the first screen and the second screen into an activity stack of the third screen; generating screen information of the third screen and a task stack for placing the screen information according to the activity stack of the third screen; and performing windowing calculation on the third screen synthesized by the first screen and the second screen again according to the screen information, generating display windows of the third screen, and sending the display windows to a display synthesis module corresponding to the third screen, thereby enabling the display windows to be synthesized and displayed in the third screen. According to the terminal and the display method provided by the embodiments of the invention, data of any application can be displayed in one screen synthesized by two screens on the premise of not restarting a system, so that the compatibility is good.

The invention discloses a terminal device control method and apparatus. The method comprises the steps of obtaining a real-time temperature value of a terminal device; when the real-time temperature value is higher than a preset temperature value, obtaining at least one abnormal application with a processor occupation rate exceeding a preset occupation rate in the terminal device, and closing at least one of abnormal applications to reduce the real-time temperature value of the terminal device so as to prolong standby time of the terminal device. When the real-time temperature value is higher than the preset temperature value, a processor load is determined to be high, at the moment, the abnormal applications with the processor occupation rates exceeding the preset occupation rate currently are obtained and are namely applications causing power consumption anomaly of the terminal device, and at the moment, the abnormal applications can be closed, so that the processor load is reduced, the real-time temperature value of the terminal device is reduced, the power consumption speed of a battery of the terminal device is reduced, and the standby time of the terminal device is prolonged.

The invention discloses a loss balance control method for a full-bridge modular multilevel converter, and the method comprises the following steps: collecting the current of a bridge arm, the capacitor voltage of a sub-module, and the switching state of each power device in the sub-module, calculating the average loss of each power device, judging the switching state of the sub-module, and carrying out the calculation of the average loss of each power device. By comparing the average loss of the left and right bridge arms of the full-bridge sub-module, the working time of the sub-module in the two operation modes is adjusted, and finally loss balance is realized. Compared with a conventional method, the loss balancing method is good in loss balancing effect, easy to control and high in economical efficiency, and the construction cost of the modular multilevel converter does not need to be increased.

The invention provides a new method for enhancing the work efficiency of a piler, analyzes the relation among the maximum allowable velocity, piler cargo capacity and cargo height, considers the control requirements for the piler speed in the starting and braking process of the piler, establishes the relation among the working speed, the cargo capacity and the cargo height, and the relation related to the horizontal position of the piler (determining the states of start, stop and working according to the horizontal position) by using a fuzzy control method, establishes a reasonable function of membership grade and a fuzzy reasoning rule, and designs an adaptive fuzzy optimal control method based on fuzzy control. By using the method, the piler can be kept at the optimal working speed all over the working process, thereby reducing vibration, enhancing the work efficiency and realizing stable changes of the working speed of the piler in different working states. The invention not only meets the requirement of increasing the piler speed, but also realizes stable control on the piler speed and accurate positioning of cargos.

The invention provides a terminal trusting method, a trusting server and a terminal. The terminal trusting method comprises the following steps: sending a trusting service request carrying the characteristic information of the terminal to the trusting server; receiving an initial trusting service corresponding to the trusting service request sent by the trusting server, and according to the initial trusting service, dividing a storage region; receiving service integration information sent by the trusting server, and loading the service integration information to the storage region, then taking the storage region as a trusted source; according to the service integration information, establishing a trusted chain, and verifying the trusted chain, if the verification is successful, sending a trusted service acquisition request to the trusting server; and receiving a trusted service corresponding to the trusted service acquisition request sent by the trusting server. According to the terminal trusting method, the trusting server and the terminal provided by the invention, the trust of the terminal can be realized without change of the hardware structure of the terminal, and the flexibility of the terminal trusting is improved.

The invention relates to a device and a method for controlling computers, in particular to a system and a method for operating computers to change slides by the aid of sliding actions on touch screens. The system for operating the computers to change the slides by the aid of the sliding actions on the touch screens comprises touch screen equipment, a transmission unit and a computer module. The touch screen equipment is communicated with the computer module via the transmission unit and comprises a touch receiving unit, a touch screen switching unit, a controlling unit and a sending unit, the touch receiving unit is connected with the touch screen switching unit, and the touch screen switching unit and the sending unit are respectively connected with the controlling unit; the computer module comprises a receiving unit, an instruction converting unit and a slide operating unit, and the receiving unit is connected with the slide operating unit by the instruction converting unit and is communicated with the sending unit via the transmission unit. The system and the method have the advantage that only specific application programs need to be installed on terminal equipment such as a mobile phone without changing a hardware structure of the existing intelligent terminal equipment.

The present invention provides an adaptive spectrum sensing method, system, medium, and terminal based on pre-evaluation processing, including the following steps: for multiple antennas, obtaining detection information of each antenna for other users in the target frequency band; according to the detection Obtain the sensing result of whether the other user transmits in the target frequency band through the detection information, and when the sensing result is in an unstable state, re-perform spectrum sensing according to the first transition probability or perform a final decision according to the second transition probability. The self-adaptive spectrum sensing method, system, medium, and terminal based on pre-assessment processing of the present invention utilize the signal reception independence between multiple antennas of user terminal equipment, perform pre-evaluation of spectrum sensing based on the detection results of multiple antennas, and then perform comprehensive Perceptual judgment, which significantly improves the accuracy of spectrum sensing.