2834results about How to "Improve response speed" patented technology

The invention discloses a trajectory tracking control method used for an automatic driving robot of a vehicle, which relates to electronic control technologies of vehicles. The desired trajectory of a vehicle is described in a data point mode to obtain the current position information of the vehicle; humanoid driving is carried out according to the current driving direction at the current vehicle position to preview a distance ahead; the position obtained by previewing is compared with the desired trajectory to determine the lateral position deviation, the angle deviation and the vehicle speed deviation of the coordinate position obtained by previewing relative to the desired trajectory; then, the vehicle direction is jointly controlled by a trajectory tracking and speed controller according to position deviation and direction deviation; and according to vehicle speed deviation, the control quantities of an accelerator pedal and a brake pedal are determined with a fuzzy control method. The trajectory tracking control method is suitable for controlling the trajectory tracking of any trajectory, various vehicle types and various working conditions, and an automatic driving robot performs the control. The trajectory tracking control method has high precision and good repeatability and has an important meaning for guaranteeing the quality of vehicle reliability experiments and improving experiment safety.

To provide a hold-type display device without a problem of motion blur and a driving method thereof. The length of a period for displaying a blanking image in one frame period is controlled in accordance with a control parameter showing the degree of motion blur, and the level of a signal supplied to a display element is changed in accordance with the length of the period for displaying the blanking image. Accordingly, the hold-type display device without a problem of motion blur and the driving method thereof can be provided.

For routing in a communications network, alternate paths to a destination are aggregated into a single composite route, prior to onward propagation of the route. Ideally, aggregation is performed at each point of route convergence in the network. Consequently, failure in only one of the paths does not then require that the composite route be withdrawn, and thus visibility of and reaction to the fault is restricted to parts of the network directly affected. The method is particularly applicable to border gateway protocols employed between Autonomous Systems as in, for example, the Internet.

A display panel includes (i) a first substrate and a second substrate, which face each other, (ii) a medium layer being sandwiched between the first and second substrate, and (iii) first electrodes and second electrodes being provided on that side of the first substrate which faces the second substrate, the display panel performing display operation by generating an electric field between the first and second electrodes. The display panel is configured such that the medium layer comprises a medium that is optically isotropic when no electric field is applied thereon, and whose optical anisotropy magnitude is changeable by and according to the electric field applied thereon; and the first and second electrodes are transparent electrodes, and a distance between the first and the second electrodes is shorter than a distance between the first substrate and second substrate. This configuration attains gives the display panel high response speed and high transmissivity.

A liquid crystal display of the present invention contains a first panel and a second panel being stacked. Adjacent pairs of polarizers (A to C) disposed on the panels form crossed Nicols. When the first panel produces a display according to a first display signal, the second panel produces a display according to a second display signal obtained from the first display signal. Each of the two joined panels is provided with a light diffusion layer having a light diffusing property. The provision of the light diffusion layers enables reducing moire pattern occurrences which would otherwise markedly increase when two liquid crystal panels are stacked. As a result, the liquid crystal display has high display quality.

An illumination control circuit allows a user to set a desired brightness level and maintains the desired brightness level over temperature and life of a light source. The illumination control circuit uses a dual feedback loop with both optical and thermal feedbacks. The optical feedback loop controls power to the light source during normal operations. The thermal feedback loop overrides the optical feedback loop when the temperature of the light source becomes excessive.

An organic photoelectric conversion element comprises: a pair of electrodes; an organic photoelectric conversion layer arranged between the pair of electrodes; and an positive hole blocking layer arranged between one of the pair of electrodes and the organic photoelectric conversion layer, wherein an ionization potential of the positive hole blocking layer is larger than a work function of the adjoining electrode by 1.3 eV or more, and wherein an electron affinity of the positive hole blocking layer is equal to or larger than that of the adjoining organic photoelectric conversion layer. An electron blocking layer may be arranged between the other one of the pair of electrodes and the organic photoelectric conversion layer, wherein its electron affinity is smaller than a work function of the adjoining electrode by 1.3 eV or more, and its ionization potential is equal to or smaller than that of the adjoining organic photoelectric conversion layer.

The invention relates to a construction and operation method of a container cloud platform system. The construction and operation method comprises the following steps: (1) the system is constructed; (2) access shunting is carried out on a control instruction and a service instruction; (3) a container cluster scheduling module forwards an access request to a specific container, and the specific container carries out service processing on the access request, returns the access request to the container cluster scheduling module, and then returns a processing result to a caller; (4) a host containerization engine module containerizes a host, records and maintains an application operated in the current platform and an application operation example list, supports and processes the control instruction, forwards instruction information, and monitors and feeds back the state of an application operation example; (5) a general controller module processes the control instruction of a container cloud platform; (6) an application health management module monitors the application condition; and (7) a message bus carries out message communication of a cloud platform device. The construction and operation method provided by the invention is used for packaging and operating dependent terms of third party applications with a container as a unit for achieving isolated operation and avoiding mutual interference, and the system resources of the host are used more fully.

The present disclosure belongs to the field of petroleum engineering, in particular to a fully-electrically driven downhole safety valve. The fully-electrically driven downhole safety valve comprises a downhole safety valve mechanism and a downhole safety valve control system; wherein the downhole safety valve mechanism includes an electronic cabin module, a transmission control module, a motion conversion module, a magnetic coupling and spring module. and a valve module; the downhole safety valve control system includes a downhole comprehensive unit and an uphole comprehensive unit.

The invention relates to a smart agricultural insect disease remote automatic diagnosis system. The system comprises an interaction system, an identification system and an insect disease database management system. The interaction system comprises an information acquisition system, a wireless communication system and an information display system; the identification system comprises a similarity comparison system and a remarkable feature extraction system; and the inset disease database management system comprises an insect disease picture database, an insect disease remarkable feature database and an insect disease diagnosis database. The smart agricultural insect disease remote automatic diagnosis system, based on images of crop growth conditions, through intersection operation of the image similarity and remarkable feature extraction comparison system and a machine learning algorithm of the identification system, can effectively improve the identification accuracy of an insect disease type. According to the insect disease type, the system provides an omni-directional diagnosis scheme so as to improve the survival rate and the quality of crops.

A curved liquid crystal display panel includes an upper substrate having a curved shape, a liquid crystal layer, a lower substrate having a curved shape, where the lower substrate is combined with the upper substrate and the liquid crystal layer is disposed between the upper substrate and the lower substrate, and a heating line disposed on at least one of the upper substrate and the lower substrate and which provides heat to the liquid crystal layer such that a temperature of the liquid crystal layer increases.

A transmission and updating method and the apparatus thereof for consecutive changing data. The method comprising the steps: the server extracts the data set from the consecutive changing data at the predetermined time interval consecutively (101); the server compares the whole set of the latest data set with the whole set of the prior one in the form of symbol to obtain the changing string; vary the changing string to the changing set (102); transmit the changing set to one or more clients (103) so that the clients can update the data set to the latest data set according to the current data set (104). The method of the present invention divides the data set into several symbols, as the symbol is flexible, an item can be divided into multiple symbols, and the data sets are compared with the symbol as a unit to diminish the compared unit, so the byte length of the obtained changing string is reduced, such that the transmission quantity is reduced greatly, the transmission speed is increased and the requirement for bandwidth is reduced.

The invention discloses a multi-channel fiber Bragg grating (FBG) demodulator, which adopts a scanning fiber laser as a light source. The scanning fiber laser is on the basis of a micro-mechanical structural filter with temperature control, and belongs to a narrow-linewidth and high-coherent light source which is calibrated accurately. The calibration is implemented by a thermostable FP etalon with a wavelength label. A gain matching fiber amplifier amplifies the power of the output of a laser and achieves the power flatness of scanning laser spectroscopy. A fiber Bragg grating reflected signal enters a data acquiring and processing system after passing through a photoelectric detector and an AD converter processing module. A data acquiring and processing and peak detection system is implemented by adopting an FPGA-based all-digital scheme, and simultaneously utilizes a synchronous signal of a direct numerical frequency synthesis module to obtain a control voltage of the micro-mechanical structural filter. By combining with other equipment, the scanning fiber laser, the etalon and the FPGA realize the multichannel, high-precision, high-stability, high-repeatability, and serial-parallel structure detection of a grating sensor network signal.

The invention relates to high integrity MIMU / GPS / micro magnetic compass / pressure altitude gage integrated navigation system. It is made up MIMU subsystem, GPS subsystem, micro magnetic compass subsystem, pressure altitude gage subsystem, and integrated navigation computer used to process subsystem output data and inosculate information to output carrier position, speed, and attitude information. The four subsystems adopt hard ware integrative high grade integration technique. The navigation computer adopts three embedding type microprocessor and has the feature of redundancy multiplexing. The GPS, micro magnetic compass, pressure altitude gage use one microprocessor together to process their algorithm. Navigation algorithm is made up of strap down inertial navigation algorithm, multi velocity model combined filtering algorithm. The invention has the advantages of small volume, low cost, high reliability, fast response speed and high precision. Thus it can be used in micro-miniature flyer precise navigation.

An avalanche photo-detector (APD) is disclosed, which can reduce device capacitance, operating voltage, carrier transport time and dark current as well as increasing response speed and output power. Thus, an avalanche photo-detector (APD) with high saturation power, high gain-bandwidth product, low noise, fast response, low dark current is achieved. The APD includes an absorption layer with graded doping for converting an incident light into carriers, an undoped multiplication layer for multiplying current by means of receiving carriers, a doped field buffer layer sandwiched between the absorption layer and the multiplication layer for concentrating an electric field in the multiplication layer when a bias voltage is applied, and an undoped drift layer sandwiched between the absorption layer and the field buffer layer for capacitance reduction.

First alignment is performed by forming an alignment layer that includes a photopolymerizable monomer or oligomer on a substrate and the like, introducing liquid crystal, and bringing the liquid crystal into contact with the alignment layer including the photopolymerizable monomer or oligomer.The liquid crystal is then subjected to secondary alignment by photopolymerizing the photopolymerizable monomer or oligomer including the alignment layer to form an alignment regulator in a state in which an electric field is applied to the liquid crystal to hange the alignment of the liquid crystal.

An illumination control circuit allows a user to set a desired brightness level and maintains the desired brightness level over temperature and life of a light source. The illumination control circuit uses a dual feedback loop with both optical and thermal feedbacks. The optical feedback loop controls power to the light source during normal operations. The thermal feedback loop overrides the optical feedback loop when the temperature of the light source becomes excessive.

The invention discloses a coordinated control system (CCS) of a large-size circulating fluidized bed boiler (CFBB) unit, consisting of a computer algorithm realization program and a human-machine interface program (HMI). The computer algorithm realization program mainly processes data and executes corresponding logical operation according to input parameters and outputs a turbine and boiler coordinated control instruction to various closed loop control systems of a dispersion control system (DCS). The HMI provides a human-machine interface which carries out instruction interaction with low-layer control equipment for a running operator and consists of a CCS operation interface and a parameter resetting panel. The system mainly achieves the coordinated control function of the CFBB unit andthe aims of completely and automatically controlling the generation process of the CFBB unit and reducing the labor intensity and economic running of the running operators.

The invention belongs to the field of power converter control and relates to a model prediction control method of a voltage source type rectifier when a network voltage is unbalanced. The model prediction control method of the voltage source type rectifier when the network voltage is unbalanced comprises the steps of converting three-phase network voltage and a three-phase current into network voltage and a current which are under a two-phase static coordinate system through an abc / alpha beta coordinate, obtaining network positive sequence voltage and negative sequence voltage by carrying positive and negative sequence component separation of the network voltage under the two-phase static coordinate system, calculating reference values of active power, calculating current reference values of the rectifier under the two-phase static coordinate system, and carrying out model prediction current control and selecting an optimal on-off state. The model prediction control method of the voltage source type rectifier when the network voltage is unbalanced is capable of quickly and precisely tracing the current under the two-phase static coordinate and effectively eliminating fluctuation of direct current side voltage at the same time, power quality of the system is improved, a reliable network-connected operation of the rectifier when transient state network voltage is unbalance is achieved, and dynamics and stability of the whole system are improved.

A flow diverter valve is used in controlling the pressure and / or flow rate of a breathable gas supplied to the airways of a patient by a breathable gas flow generator supply apparatus during, for example, ventilatory assistance treatments such as non-invasive positive pressure ventilation and nasal Continuous Positive Airway Pressure (CPAP) treatment of Obstructive Sleep Apnea. The flow diverter valve includes a vane and a housing. The housing has an inlet port, an outlet port, and an exhaust port. The exhaust port opens to atmosphere, and the inlet port is in fluid communication with the flow generator. The outlet port is in fluid communication with a patient mask via a conduit. The vane is configured with respect to the housing such that a blower associated with the CPAP apparatus remains substantially unchoked, regardless of whether the vane is in the open or closed position.

The invention provides a distributed monitor system and method based on streaming media service clusters. The system comprises a Hadoop-based data distributed processing framework, a distributed internal memory caching module Memcached, a relation data management module, a non-relation data management module, a streaming media service cluster module, and a load balancing module. The Hadoop-based data distributed processing framework extracts and analyzes data from a data source and performs preprocessing and distributed calculation on analyzed data. The distributed internal memory caching module Memcached caches commonly-used and temporary data in the internal memory of a server. The relation data management module achieves query, storage, management, and computation of information of an access device achieved by a monitoring system platform. The non-relation data management module achieves distributed disposition in combination with a fragment calculating method of a non-relation No-SQL data storage system. The streaming media service cluster module achieves distributed cluster processing of streaming media information transmission. The load balancing module performs balancing procession on the load of the monitoring system platform and expands WEB container level. In combination with a load balancing mechanism and database fragment calculation, the distributed monitor system improves a level expansion capability, decreases platform configuration and management workload, and maintains stability.

A data caching apparatus, data caching method and medium recorded with data caching program in client / server distributed systems, wherein, when there is a request from a client for reference to a database, duplicate of reference request data retained in a cache file is preferentially sent back to the client, and the duplicate data retained in the cache file is updated in the server background.

Provided are a functional porous film having a plurality of functions, a method of manufacturing the same, and a sensor using the same. In the functional porous film, a functional portion having a different function from a porous body is disposed on the inner wall of a pore of the porous body. The functional porous film is formed through forming a precursor film including a pore-forming powder such as an organic powder on which a material powder of the functional portion is deposited and a material powder of the porous body, and then heating the precursor film to remove the pore-forming powder and sinter the material powder of the porous body.

A consulting system helps a user on collecting information, building object model, and creating virtual environment, produces animated images, captures feedback from the user, analyzes user's response, and provides advices in various formats. First, the system provides interfaces for guiding the user to collect, manipulate, organize, search, and retrieve advices and their related examples. Next, the system provides interfaces for the user to build object models, which consist of the general object model for describing regular objects and human object model for describing human characteristics and behaviors. Further, the system provides interfaces for the user to build virtual environment from object models and creates animated images according to the events described in the related examples, properties associated with objects, and event templates. Further, the system captures user's feedback, which can be verbal requirement, facial expression, and keyboard input. Then the system analyzes user's response, compares to predetermined goals or expert's requirement, and provides user advices in various desired formats.

Provided are a method for preparing an electrode system, an electrode system prepared therefrom, and an electric device including the same. The method includes the steps of forming a porous template having nanopores on a first electrode, wherein a diameter of the nanopores is between 5 to nm 500 nm; and forming a rod-type / tube-type second electrode inside the nanopores which are connected to the first electrode, the electrode system prepared therefrom, and an electric device including the same. With the large surface area, the electrode system of the present research improves efficiency and performance of various electric devices. The contrast and respond speed of the electrochromic device can be increased, and the number of electron-hole pairs of a solar cell is increased. The loss of electron-hole pairs is minimized, and charge storage of the supercapacitor and charge respond speed is heightened.

A driving system and method for electroluminescent displays which by connecting the electroluminescent elements that have been lighted up to the electroluminescent elements that are to be lighted up causes charge to be shared among the elements, so as to increase the voltage level at the anodes of the electroluminescent elements which are to be lighted up, thereby reducing the power consumption and increasing the response speed.

A display device has a light blocking arrangement for selectively blocking light which has or would be emitted at large lateral angles. The display can be configured so that light reaching these elements is either allowed to reach the viewer or is blocked from reaching the viewer. This means that a public viewing mode can be chosen or a private viewing mode. The light blocking elements are controlled optically in order to simplify the construction and control.

The invention relates to a control system device based on interconnection of various networks for a large-scale live pig culturing environment and an environment factor parameter control method. The device of the invention comprises a data acquisition and transmission layer, a data analysis and storage layer and a data use and sharing layer which communicate with each other by a wired or wireless mode to realize data acquisition, analysis and remote control. On the monitoring field, the system adopts a self-organizing intelligent control network formed based on wireless sensor network interface nodes, or adopts a collection and control system of field unit environment factor parameters formed based on field bus interface nodes and a field monitoring terminal; information interaction between the control field and a remote center monitoring terminal is realized by the wired or wireless mode through multiple interface gateways; and the networks of the overall system have various information interactive modes, thereby improving the flexibility, reliability and economy of structural design of the control system.