74results about How to "Fast display" patented technology

The invention provides a method for processing map data based on a mobile terminal, a system and the mobile terminal. The method comprises the following steps of: carrying out format conversion processing for the map data and generating map vector data; encoding the generated map vector data and generating the map vector data with a compressed format; constructing a dynamic vector database in the mobile terminal; downloading the map vector data with the compressed format into the dynamic vector database; reading the map vector data with the compressed format from the dynamic vector database and decoding the map vector data with the compressed format to obtain the map vector data; and mapping a map which is corresponding to the map vector data on a display of the mobile terminal according to the map vector data and mobile terminal display pixel data. The method, the system and the mobile terminal are used to solve the problem that map data storage is matched with display and real time map scanning, voice navigation, real time geographic information and interest point searching and the like on the mobile terminal are realized in deed.

The invention discloses a large-scale network topology plane visualization method based on a vector diagram and a bitmap, relating to a visualization technology of a network topology plane, and solving the problem in the prior art of complex algorithm and slow refreshing speed existing in the condition that the vector diagram is adopted to display a large-scale network topology diagram. The invention adopts the bitmap of three layers to display a network topology diagram, wherein the first layer is a graphics field represented by a spacebit diagram; the second layer on the graphics field is a bitmap field with a coordinate; and the third layer on the bitmap field is a client field. A vector graphic file is adopted to store the position, curve and colour of a node, and the vector diagram is mapped onto the bitmap field; in the graphics moving process, a bitmap moving method is adopted to move the client field; in the graphics scaling process, the vector diagram is scaled, and then the scaled vector diagram is mapped to the bitmap. The invention has the advantages of no scaling distortion and high displaying speed and is especially suitable for a large-scale undirected graph visualization technology.

The invention provides a method and a device for saving and loading map road shape point data. The method includes: acquiring the shape point data with the largest measuring scale, and sorting the data according to a first order; determining the shape point data of each measuring scale level through vacuating extraction on the basis of the shape point data with the largest measuring scale, and removing the shape point data smaller than each measuring scale and under other measuring scales; arranging and adjusting the shape point data of each measuring scale level; adding index information to the shape point information under a smaller measuring scale, wherein the index information of each shape point datum points to the number of the shape point data arranged behind the shape point datum under a measuring scale one level larger than the smaller measuring scale, and no index information is added to the shape point data under the largest measuring scale. By the method, redundancy of the saved shape point data is avoided, and saving and loading efficiency are increased favorably.

The invention discloses a map display method for a geographic information system. The method comprises the step of establishing a map file linked list cache, two virtual screen caches and a map data cache. The invention also provides a map display device for the geographic information system. Through application of the technical scheme provided by the invention, a traveler is facilitated, practicability of a smart terminal is improved, and moreover, visual experience of a smart terminal user is improved.

The invention discloses a multifunctional and intelligent certificate access management method. A step for rapidly inquiring a plurality of keywords comprises the following specific steps of: reading and warehousing certificates; selecting and setting keyword types; inputting keywords through a user interface (UI); comparing keywords; finding out a certificate list comprising the keywords in certificate tag information; and returning an inquiry result. A step for performing WLT storage and bitmap reduction and display: scanning certificates; storing images; and reducing and displaying. A step for performing certificate overdue management comprises the following steps of: setting system time and a certificate overdue limit; reading and warehousing certificates; recording warehousing time; performing overdue monitoring; and taking overdue certificates out. In the method, a multi-keyword inquiry technology is adopted, so that the inquiry speed and the inquiry efficiency are high; image files in certificates are stored in a WLT format with a small occupation volume and are reduced into bitmap files for display, so that high inquiry and identification speeds and a clear and good display effect are achieved; and overdue certificates are eliminated in real time, so that the storage space utilization ratio can be increased effectively.

The invention provides a video name display method and a mobile terminal. The video name display method includes the steps: when monitoring that a video file is being downloaded, obtaining the video name of the video file; when the length of the video name is greater than the preset length value, replacing the characters, satisfying the filtering rules, of the video name, and generating a target video name; and after the video file is downloaded completely, displaying the target video name. The video name display method can accurately and quickly display the video name and improve the usage experience of a user.

The invention relates to a virtual inspection system of a digital factory. The virtual inspection system at least comprises a server system, at least one interaction terminal and at least one controlsystem, the server system is respectively in communication connection with the at least one interaction terminal and the at least one control system, the server system at least comprises a three-dimensional module and a graphic server, the three-dimensional module forms a three-dimensional scene displayed on at least one interaction terminal based on at least one three-dimensional graphic component formed by fusing attribute data and graphic data of a controlled object by the graphic server, so as to respond to the operation of an inspector on the interaction terminal, and the three-dimensional module adaptively adjusts the display angle of the three-dimensional graphic component of a controlled object, so that an inspector inspects the attribute of the controlled object in the three-dimensional scene in a roaming manner. The virtual inspection system can directly and truly inspect the attributes of the controlled object in the factory and control the controlled object, and the inspection efficiency is higher.

The invention relates to a meter reading identification method and device, a readable storage medium and computer equipment. The method comprises the steps of acquiring a dial image; carrying out dialplate detection on the dial plate image, and a dial plate area is extracted from the dial plate image according to a detection result; reading a pointer point and at least two dial plate key points from the dial plate area; respectively calculating central angle values between the at least two dial plate key points and the pointer point; and calculating a reading corresponding to the pointer point according to the central angle values and the scale values of the at least two dial plate key points. According to the scheme provided by the invention, the reading of a meter can be quickly read, and the reading efficiency of the meter is improved.

The invention relates to the technical field of fuel cells, in particular to a fuel cell control management system which comprises an on-site layer, a data transmission layer and a management layer which are sequentially connected, wherein the management layer comprises a controller and an upper computer, the data transmission layer comprises an MDS main station, and the on-site layer comprises aDSP control system; the on-site layer is used for monitoring operation equipment of the fuel cell power system in real time, the data transmission layer is used for data transmission between the on-site layer and the management layer, and the management layer is used for monitoring and controlling the fuel cell power system. The control management system has the advantages of simple structure, andsimplified management control strategy, and high sampling speed, strong data processing capability, increased sampling points and very high sampling data precision by adopting a DSP operation technology. The system can adapt to indoor and outdoor severe working environments, has remote diagnosis, test and supervision functions, and can meet data acquisition and control between scheduling or control centers of all walks of life and controllers.

The invention provides a designing method for a third-generation (3G)-network-based wireless video monitoring system. By the method, a set of wireless video monitoring system is constructed under a simple hardware environment by utilizing the characteristics of relatively lower cost, mobility and convenience of an advanced reduced instruction set computer machine (ARM) 9 processor and a 3G network. The system is compact and based on a linux kernel so as to be convenient, easy to carry and highly extensible. A main working principle of the system is that: the system adopts a processor S3C2440A, utilizes the linux2.6.30.4 kernel, transmits video signals acquired by a universal serial bus (USB) camera to a remote terminal for displaying by the 3G network, and is optimized to a certain extent in acquisition and displaying processes. The system can be used as a cluster video monitoring system to effectively ensure the 24-hour video monitoring, remote monitoring and the like of a cluster administrator over a cluster by own characteristics of convenience and mobility. Final test results show that the system has high communication real-time performance, video transmission smoothness and relatively higher image quality.

The present invention a three-dimensional display device and a three-dimensional display method. The device comprises: a pulse light source configured to emit pulse optical signals; a first dispersiondevice configured to convert the pulse optical signals emitted by the pulse light source from a frequency domain to a time domain to form pulse optical signals after broadening of the time domain; asignal modulator configured to modulate image data of a pre-displayed three-dimensional object to the pulse optical signals with broadened time domain; a first optical device configured to achieve scanning of the modulated optical signals in an X direction and a Y direction; a second optical device configured to achieve Z-direction scanning of the pulse optical signals scanned in the X direction and the Y direction; and display materials configured to allow the pulse optical signals scanned through the first optical device and the second optical device to achieve display of the three-dimensional body in the X direction, the Y direction and the Z direction through the display materials. The three-dimensional display device and the three-dimensional display method can achieve real three-dimensional display of the object through an optical structure.

The invention relates to a redundancy device of a large-screen image processor based on display detection and a control method. The system comprises a display wall, an image processor, a control computer, a signal distributor, a network switch and a computer for providing a signal source, client operation software for large-screen display, a control image processor and a large-screen display unitare installed on the control computer, and one control computer synchronously controls two hardware type image processors with identical configurations. The control computer is respectively connectedwith the large screen and the network switch, the network switch is respectively connected with the two hardware type image processors with the same configuration, the computer is connected with the signal distributor, and the signal distributor is connected with the image processor. According to the invention, the fault which cannot be normally displayed and occurs in the image processor can be accurately judged. The display recovery speed is high; And the original display scene can be recovered, and real display redundancy is realized.

The invention discloses an ecological red line automatic positioning display system, which comprises a user management module, a map function module, a data processing module and a data display module. The user management module performs user management and authority setting; the map function module displays the ecological red line area, the real-time position of the user and destination navigation; the data processing module acquires the position data of the ecological red line and realizes conversion, cutting, processing and returning of the position data of the ecological red line in real time; and the data display module displays the position data of the ecological red lines in real time and performs map display. The invention further discloses a power grid project site selection and line selection method adopting the ecological red line automatic positioning display system. The system provided by the invention can quickly realize automatic positioning and display of the ecologicalred line, and is good in safety and high in display speed; meanwhile, the system is adopted to perform the power grid project site selection and line selection process, the line selection process israpid and accurate, and the efficiency is high.