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About 7,681 papers for “Graphical display”

Graphical display

Harding, S. A., Soutar, D. M. · Rothamsted Repository (Rothamsted Repository) · 2002

Cited by 0

Graphical LCD display

Kulka, Branislav · Brno University of Technology Digital Library (Brno University of Technology) · 2011

Bachelor's thesis "Graphical LCD Display" is focused on designing graphical diplaying unit for displaying industrial data, which is equipped with RS232/RS485 interface and digital inputs and outputs. Device is equipped with I51 series microcontroller. In this work MODBUS protocol is discussed and implemented. Data can be dispayed on circle scale or in form of bargraph indicators.

Cited by 0

Termometer with graphical display

Křeček, Libor · Brno University of Technology Digital Library (Brno University of Technology) · 2011

Cílem této bakalářské práce bylo seznámit se s problematikou měření teploty v daném rozsahu. Dále navrhnout digitální měřící přístroj, který by teplotu měřil a zobrazoval na grafickém LCD displeji; vytvořit výrobní dokumentaci a navržený systém zrealizovat včetně výroby desky plošných spojů. Vzhledem k použití mikroprocesorové techniky se počítá s odladěním softwarového vybavení pro daný mikroprocesor. Měřená teplota je v rozsahu -40 až +120 °C s přesností lepší než 0,5°C.

Cited by 0

Graphical modular LED display

Šutera, Libor · Brno University of Technology Digital Library (Brno University of Technology) · 2010

Project describing general setup and properties of mikroprocessors from series 8051 and properties of components, that are use in project. Next part describing process of construction and software equipment of mikroprocessor. The main direction of project is make a suggestion about driving of matrix with 8x8 RGB LED diode. Suggested mudular LED display complete with components and aktivate matrix. In last part write program for mikroprocessor for driving LED matrix a will be communicate with PC. And last write programe, which show accuracy of function.

Cited by 0

Color Graphical Display System

Eiichi Yamazaki, K. OHKAWA · Information Display · 1974

In the control of electric power, steel, and iron plants and in railroad control, the control process becomes complicated and the amount of information increases with the introduction of computers. As a result, the display panel often becomes complicated beyond practical operation. As one method of solving the problem, we have developed an inexpensive graphical display system with a graphical printer that permits limited graphics using conventional color CRT display techniques. This device can be connected to a mini-computer so as to enable the pictures on the CRT to be handled in blocks. It is applicable to dynamic display and the control of plants of various kinds. Usually in such applications as electrical power stations, steel plants, chemical plants, and transportation, panel board type display systems have been used to monitor the condition of the plants. But, because of the complexity of the plants themselves, and the improvement of information because of expansion of the systems and because of the use of computer control systems, the panel board display system has increasingly become larger and more complex. And, it has become uncomfortable to monitor and control the plants through the conventional panel board display system. As a result, a demand for a display system which is able to display a selected area of the plant in detail, and which is able to be connected to a computer system easily, has become more and more strong. To satisfy this demand, we have developed a limited color graphic display system. For instance, in the case of a skeleton diagram which describes an electrical power station, one power line which is composed of several picture elements, is handled as one picture block or module. As a result, the color of the picture block is changed, or it starts to blink at once by only one action. The assignment of the picture block and its registration is accomplished using the CRT display and keyboard with this picture processing software. (4) An optional printer is able to be connected to this graphical display system. This graphical printer is a wire dots serial printer which is able to receive the video signal from the CRT display as an input signal and print out the graphic display pattern the same as the picture on the CRT. This graphical display system is different from a conventional graphic display system. As this graphical display system employs conventional commercial color CRT techniques and graphic patterns are composed of color dots, the quality of displayed patterns of this graphical display system is inferior to that of conventional graphic display systems which employs high resolution analogue techniques and random scanning drawing methods, but the performance is sufficient for the applications mentioned above and the cost is very low relative to conventional graphic display system. The construction of this system is described in Fig. 1. In this system a minicomputer with a disc memory is used to handle the picture on the CRT by picture processing software, and device oriented basic operations, for instance edit operations, are performed at the display station. The display station is composed of line interface, CRT controller, refresh memories, pattern generators, and CRT with keyboard and light pen. The construction of this display station is similar to a conventional raster-scan type character display system, but is different from these systems in that this graphical display system has three types of refresh memory and has three types of pattern generation. Two of the refresh memories store coded data which correspond to pattern or character, and each of the refresh memories can store a maximum of 1280 (40×32) data points. One of them constructs a basic picture and the other constructs an overlay picture. The third refresh memory is for trend graphs, where the contents stored in memory, are different from the other refresh memories. The refresh memory for trend graphs is constructed of eight, 256 bit, parallel shift registers. In this refresh memory, 256 byte binary data are stored and displayed on the CRT as one trend graph composed of 256 dots. Pattern generators are classified into two categories. One of them is for the conventional patterns like picture elements and characters. A picture element is composed of 7×7 dots and a character is composed of 5×7 dots. Further, the conventional pattern generator is divided into a ROM type and a RAM type. The ROM type pattern generator stores fixed graphic patterns and character patterns, and the RAM type pattern generator stores variable graphic patterns which are rewritten by the CRT controller. Another pattern generator is one for trend graphs which is composed of a comparison circuit between contents of the trend graph refresh memory and the raster scan counter. This display system has three pairs of trend graph refresh memories and comparison circuits and so it is possible to display three different trend graphs. The output from these pattern generators are serialized respectively, put through a logical “or” circuit, and sent to the CRT to display pictures, characters and trend graphs. Photo 1 shows the display station of this system and photo 2 shows the skeleton diagram displayed on the CRT. The origin of trend graphs can be located in the lower left corner of display area on the CRT. Fig. 2 shows the block diagram of the trend graph circuit. In the refresh memory, 256 byte data are stored and refreshed cyclically once per raster, synchronizing to the horizontal raster scan. Each output data from the refresh memory during refresh is compared with the contents of the raster counter which indicates the Y coordinate value. When the output data corresponds to the Y coordinate value, one dot on the CRT is brightened. In this manner, the 256 byte data are compared, and 256 dots are. brightened on the CRT in every frame. New data for the trend graph from a computer, are written in the memory, while circulating the refresh memory. The address to be written in the refresh memory is stored in the write address register and incremented in every write operation. The recirculating data position of the refresh memory is indicated by the refresh memory address counter. These two address data are compared in the comparison logic. When the RFM address counter corresponds to the content of the write address register, new data from the computer is written in the refresh memory. In this graphical system, three of these trend graph blocks are provided. So, three different color trend graphs can be displayed on the CRT. Photo 3 shows the trend graphs displayed on the CRT. In this system, to make it easy to generate and handle the pictures, picture processing software is provided in a minicomputer. In this section we will present the picture generator operation and subroutines for picture handling. To handle the picture in block units, we must assign the desired picture elements on the CRT as one picture block. This assignment is accomplished by checking the difference between original picture data stored in minicomputer memory and picture data displayed on the CRT which is rewritten partially using the keyboard to assign picture blocks. These assigned picture blocks are named and stored in the data area in the minicomputer memory one by one, and at last all of these blocks are stored in disk memory. Update Block Only the text of the old picture block are updated by new data. Position Control Any picture block can be moved in X, Y directions in steps of one picture element. Color Control The color of the picture block can be changed to any of seven colors. Blink Control It is possible to set the picture block into a blinking state or to stop it from blinking. Update Block for Trend Graph Old data of trend graph are all rewritten by new data. Extended Block for Trend Graph New trend graph data are added to old data continuously and the graph extended. Color Control for Trend Graph The color of a trend graph can be assigned to any of seven colors. Display Control for Trend Graph It can be controlled to display or not display any of the three trend graphs. Horizontal/Vertical Graph Update Horizontal or vertical bar graphs can be displayed, which have a resolution of 1/280 in the X direction and 1/224 in the Y direction and which have a width equal to one picture element (equal to 7 dots). These graphs can be updated by this subroutine by giving only the value indicating the length of the bar graph. Request Attention If the picture block which is assigned by light pen is registered as a light pen detectable picture block, this subroutine sends the picture block identifier to the user's program. If not registered, it sends a zero to the user's program. The operation following it is decided by the user's program. Using these subroutines, we can handle the picture easily and dynamically. As mentioned above, this graphical printer has a hard copy printer which employs a modified wire dot printer. A conventional wire dot printer has a seven wire stylus arranged vertically in the printer head, and shifting the printer head horizontally and striking the printer paper by selectically activated wire styluses, it prints out any kind of characters. But these character printers have a line spacing which is uncomfortable for graphical printer. So, we modified the paper feed mechanism so as not to have the line space. The block diagram of the graphical printer is shown in Fig. 3, and the graphical printer with the display is shown in Photo 4. The video signal from the graphical display is stored in a shift register type memory in the printer controller. This memory is composed of seven shift registers of 512 bits. Since each shift register stores the video signal displayed in one raster time, this memory stores seven rasters of video signal. When the memory is filled by video signals, the printer controller turn into the printer mode. Then the data stored in the memory are read out synchronized to the printer timing, and supplied to the solenoids to activate the wire sty luses in the printer head. After that the next seven rasters of video signal are stored in the memory, and printed out to the printer. The one dot printing rate of this wire dot printer is 1 msec, the number of elements in one raster of video signal is 280, the time for fly back of printer head is about 150m sec and there are 35 lines in the display, so it takes about 15 sec. to print out a picture displayed on the CRT. Using this graphical printer, we can get a hard copy of not only characters but also graphical patterns displayed on the graphical display. Photos 5 and Photo 6 show the printed out results. This graphical display system can display and control the state of many kinds of plants dynamically supported by picture processing software and optional instruments such as a light pen and a keyboard. This system is just like a window through which we can observe many kind of plants. Already we applied this system to power plants, railroad control systems, ship controls, etc.; moreover we expect it to be used in other applications which are able to utilize its characteristics. Ezio Yamazaki holds B.S. and M.S. degrees in electrical engineering from Tohoku University, Japan, and a Ph.D. from Osaka University. He joined the central research laboratories, Mitsubishi Electric Corp. in 1959. In 1968 he was transferred to the computer group, electric laboratory, where he is working on the development of computer peripherals and terminals. He is a member of the IEEE U.S.A., the IEE Japan and the SICE Japan. Kiyoto Ohkawa holds a B.E. degree in precision engineering from the University of Osaka, Japan. From 1961 to 1968 he worked with the instrument group of central research laboratory, Mitsubishi Electric Corp., Hyogo, Japan. Since 1968 he has been in the computer group of electronics laboratory, Kamakura Works, Mitsubishi Electric Corp., Kamakura, Japan, and has been concerned with development of computer peripherals and terminals. Recently, he has been engaged in development of new remote terminal system. He is a member of the Institute of Electronics and Communication Engineers of Japan. A set of “guidelines for government and public liaison” has been published to assist members of Data Processing Management Association (DPMA) in responding to social issues regarding information processing. The guidelines encourage the involvement of all members in assuming their responsibilities to help solve information processingrelated problems in government, the schools and the local communsoity, said Merton R. Walker, CPCU, CDP. Walker is a DPMA international vice president and chairman of itsos committee on association liaison and international affairs which prepared the guide-lines. “We must fulfill our responsibility to society and speak up when our profession is the target of those who degrade our ability to respond to the needs of today's society,” said Walker who is assistant vice president, management information services, State Farm Fire & Casualty Co., Bloomington, Ill. “The guidelines stress that every DPMA member should be notified of the Association's plan to speak on issues which we feel need to be considered by people with our expertise and background,” said Walker. For information concerning subscriptions to the SID Journal, please contact Blackwent Publishing Co. directly, 1605 Cahuenga Blvd., Los Angeles, Calif. 90028. The American Society for Information Science (ASIS) opposed a $3.5 million cutback in the appropriation of the National Science Foundation's Office of Science Information Service (OSIS) in testimony before a Congressional subcommittee recently. Joshua I. Smith, Executive Director of ASIS, told members of the Subcommittee on Science, Research and Development of the House Committee on Science and Astronautics that, as the major professional society representing information scientists and technologists, ASIS opposed the seeming trend toward diminishing support for scientific and technical information activities. He stated the ASIS view that there is a distressing lack of an overall national policy regarding such activities. Explaining that exactly such a national policy is required as the United States makes the transition from an industrial to a post-industrial society, Mr. Smith voiced ASIS concern over the drastic cuts to the OSIS budget, especially in view of the marked upswing in support of other NSF programs. Mr. Smith pointed out that, while nations such as Japan and the Soviet Union are presently embarking on multi-year, multi-billion-dollar programs to develop improved information systems, the United States is consciously neglecting this area. He further stated that the increase in funding for research and development mandated in the 1975 NSF budget was, in effect, buying information. “How then”, he asked, “can NSF justify new funds for possibly old or already created information?” While the product of research is information, a lack of NSF-funded information-systems development can mean redundancy and inefficiency in applying this information to society's needs. The British Department of Trade and Industry's Computer-Aided Design Centre (CAD), Cambridge, England, announces the sale of one of its most advanced graphics programs, known as “Greyscales,” to General Motors of Warren, Michigan. It is a computer program designed to generate realistic half-tone pictures from a 3-dimensional object definition. Circle 5 on Readers Service Card The CAD Centre was established four years ago with the prime aim of developing the capability of the computer to integrate the design process and to improve the creative potential of the engineer. “Greyscales” originated from fundamental development work carried out at the Centre. Among the many areas of application - in architecture, industrial design, civil, mechanical, electrical and chemical engineering - one of particular importance is the checking of 3-dimensional finite element schemes. Finite element errors are very obvious in a shaded picture, and a small investment in producing a few pictures can save a lot of wasted computation in analysis. Principal uses are the assessment of aesthetic properties; checking of design data; illustrations; presentation of results. A simple command language can be used to request different views and many views can be generated from one object definition. The algorithm used to solve the hiddensurface problem is, in most cases, faster than other methods. Objects can be described with different material reflection properties and materials such as aluminium, steel or even transparent glass, are easily simulated by the program. It is also possible to position a light source to vary the effects of light and shade. The sale was accomplished by the Center for Scientific Studies, Michigan, USA, a small high technology company specializing in the design, marketing and implementation of hardware and software graphics systems. EG&G, Inc., Electro-Optics Division announces immediate availability of new low-cost Model 450 Photometer/Radiometer System. Incorporating a single Multiprobe Detector, system provides direct, absolute readings in 4 distinct optical units: watt/ cm2, foot-candle, foot lambert, and lux, Direct reading concept is said to eleminate need of post-measurement calculations thereby significantly simplifying light-measurement task. Instrument contains 3 1/2-digit panel meter with dynamic range of six fullscale decades. Circle 12 on Readers Service Card

Cited by 1

Three dimensional graphical display system

Charles B. Morrill · 1964

We have been made aware of a number of development programs for computer aided or assisted design. For example, work is going on under the direction of Prof. S. A. Coons at M. I. T. toward the development of a three-dimensional version of Ivan Sutherland's “Sketchpad” system. Also at M.I.T. under the guidance of Douglas T. Ross a new modular compiler for universal design application is being developed.

Cited by 0Open access

Graphical Display and Visual Analysis

Gorman Franklin · 2014

In this chapter we briefly review literature addressing visual inspection of graphed single-case data. In doing so, we explore graphics percep­ tion, considering strategies for enhancing accuracy in visual displays. We review the emergence of applied behavior analysis, present interpre­ tive methods for visually inspected data in applied behavior analysis, review areas of concern in empirically supporting visual analysis and in relating visual analysis to scientific methods of inference, and discussthe importance of integrating visual analysis with statistical analysis. Our journey explores interactions of stimulus properties with human information processing. Within this context, we identify strategies for enhancing accuracy in visual display.

Cited by 77

Humanities Approaches to Graphical Display

Johanna Drucker · Digital humanities quarterly · 2011

As digital humanists have adopted visualization tools in their work, they have borrowed methods developed for the graphical display of information in the natural and social sciences. These tools carry with them assumptions of knowledge as observer-independent and certain, rather than observer co-dependent and interpretative. This paper argues that we need a humanities approach to the graphical expression of interpretation. To begin, the concept of data as a given has to be rethought through a humanistic lens and characterized as capta, taken and constructed. Next, the forms for graphical expression of capta need to be more nuanced to show ambiguity and complexity. Finally, the use of a humanistic approach, rooted in a co-dependent relation between observer and experience, needs to be expressed according to graphics built from interpretative models. In summary: all data have to be understood as capta and the conventions created to express observer-independent models of knowledge need to be radically reworked to express humanistic interpretation.

Cited by 400Open access

A remote graphical display system

F.F. Lee, Donald E. Troxel · 1968

A system for the generation, transmission, local storage, and subsequent display of computer-generated arbitrary two-level pictures has been developed. It is capable of providing flicker-free displays without continuing expenditure of computer time. Users may interact with the display by means of a light-pen, tablet, etc., by adding a locally-generated cursor. The system is capable of serving approximately 120 remote consoles, if each requires a new picture every 20 seconds. The picture-quality is commensurate with that of high-quality closed-circuit television systems.

Cited by 0

On-Line Graphical Display System

William Douglas Bechtel · Calhoun: The Naval Postgraduate School Institutional Archive (Naval Postgraduate School) · 1968

On-line graphical display of data of various types offers a powerful tool for the visual analysis of information. A software system is proposed to implement on-line display in a general purpose hybrid simulation laboratory. The subroutines required to implement this are put forward. Specific proposals are made in areas related to the basic software package. An application example is included to show the interrelationships of the software package.

Cited by 0Open access