The invention concerns display systems and methods for recovering display information.
There are many types of industrial plant control systems (IPCS) known in the art for controlling industrial equipment and processes. One such conventional IPCS 100 is shown in
Each of the components 102, 110, 106, 108 is well known to those having ordinary skill in the art, and therefore will not be described in detail herein. However, it should be understood that the operator computing system 110 is configured to enable the control of the industrial equipment 108 by an operator (not shown). As such, the operator computing system 110 includes a user interface 130 and a processing device 132. The user interface 130 is often comprised of a keyboard (not shown), a mouse (not shown), a display screen 112, and the like. The display screen 112 and processing device 132 collectively display a set of display windows 114, 116, 118, 120 to the operator (not shown). The phrase “display window” as used herein refers to a visual area of the display screen 112 configured to display at least one graphical user interface (GUI). GUIs are well known to those skilled in the art, and therefore will not be described herein.
If the primary server 102 is online, then the primary server 102 provides a means to select a plurality of monitor-control graphical user interfaces (MCGUIs) 122, 124, 126, 128 to be displayed in the display windows 114, 116, 118, 120. The phrase “monitor-control graphical user interface” as used herein refers to a graphical user interface which displays information and generally provides command control for monitoring and/or controlling applications, such as for an industrial process or industrial equipment. Alternatively, if the primary server 102 is offline and the secondary server 104 is online, then the secondary server 104 performs actions to select a plurality of monitor-control graphical user interfaces (MCGUIs) 122, 124, 126, 128 to be displayed in the display windows 114, 116, 118, 120.
The MCGUIs 122, 124, 126, 128 typically include a text display area (not shown), a video display area (not shown), an image display area (not shown), command buttons (not shown), scroll bars (not shown), and/or the like. Each of the MCGUIs 122, 124, 126, 128 is displayed in a particular display window 114, 116, 118, 120. For example, an MCGUI 122 is displayed in the display window 114. Similarly, the MCGUI 124 is displayed in the display window 116. Likewise, the MCGUI 126 is displayed in the display window 118. The MCGUI 128 is displayed in the display window 120. However, it should be understood that more than one GUI can be displayed in each of the display windows 114, 116, 118, 120.
Despite certain advantages of such a conventional IPCS 100, it suffers from certain drawbacks. For example, if the primary server 102 fails, then the secondary server 104 performs a re-set process to re-set the MCGUIs 122, 124, 126, 128. During this re-set process, the display windows 114, 116, 118, 120 are shut-down and each of the MCGUIs 122, 124, 126, 128 is re-invoked. As a result of the re-invocation process, the MCGUIs 122, 124, 126, 128 reappear in a random order on the display screen 112 as shown in
This Summary is provided to comply with 37 C.F.R. §1.73, requiring a summary of the invention briefly indicating the nature and substance of the invention. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
The present invention concerns methods and related implementing systems for recovering a set of display screen windows in a multi-window display screen. The methods generally involve retaining stored window information. The window information comprises a first arrangement for a first set of display screen windows displayed on a multi-window display screen at a first time. Each of the display screen windows has respective content. The methods also involve using the stored window information for redisplaying the first set of display screen windows in the first arrangement on the multi-window display at a second time after the first time. The second time follows an event (e.g., loss of power) causing the first set of display screen windows to be removed from the multi-window display screen. The redisplayed display screen windows contain at least a portion of the respective content.
Embodiments will be described with reference to the following drawing figures, in which like numerals represent like items throughout the figures, and in which:
Embodiments of the invention provide methods and related implementing systems for re-invoking a set of graphical user interfaces in a manner that retains their original positions in a display screen. The invention will now be described more fully hereinafter with reference to accompanying drawings, in which illustrative embodiments of the invention are shown. This invention, may however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. For example, the present invention can be embodied as a method, a data processing system, or a computer program product. Accordingly, the present invention can take the form as an entirely hardware embodiment, an entirely software embodiment, or a hardware/software embodiment.
Before describing method embodiments of the present invention, it will be helpful in understanding an exemplary environment in which the methods can be utilized. In this regard, it should be understood that the methods of the present invention can be utilized in any application where an operator monitors multiple display screen windows. Such applications include, but are not limited to, industrial plant control applications, medical applications, security applications, and navigation applications. Accordingly, methods of the present invention will now be described in relation to one particular application, namely, the industrial plant control application.
Referring now to
Referring again to
As shown in
The operator computing system 204 may be a desktop personal computer system, a laptop personal computer system, a personal digital assistant, a mobile computing device, or any other general purpose computer processing device. Accordingly, the operator computing system 204 is configured to display content in display screen windows. The phrase “display screen window” as used herein refers to a visual area of a display screen containing content. Such content can include, but is not limited to, still images, video images, an animated image, text, graphs, charts, data, graphical user interfaces (GUIs), or any other information useful in monitoring an area of interest and/or controlling a desired process. In the industrial process scenario, the GUIs can contain information necessary for enabling an operator (not shown) to monitor and/or control an industrial process or equipment. Such information includes, but is not limited to, real-time images of industrial equipment (e.g., a tank filled with a liquid), data indicating temperature of a particular area of an industrial plant, data indicating temperature of a liquid used in an industrial process, and data indicating how much liquid is in a particular container.
Referring now to
The hardware entities 312 may include microprocessors, application specific integrated circuits (ASICs), or other hardware. The hardware entities 312 may include a microprocessor programmed for communicating with a primary and secondary server 202, 206. More particularly, the hardware entities 312 may include a microprocessor programmed for communicating display screen window (DSW) identification and attribute information to the primary and secondary server 202, 206. Such DSW identification information generally includes, but is not limited to, a unique string of letters or numbers associated with a particular DSW (described below in relation to
The hardware entities 312 may also include a microprocessor programmed for communicating DSW content information to the primary and secondary server 202, 206. For example, if the DSW content is a monitor-control graphical user interface (MCGUI), then the microprocessor can be programmed for communicating monitor-control graphical user interface (MCGUI) identification and location information to the primary and secondary server 202, 206. As stated above, the phrase “monitor-control graphical user interface” as used herein refers to a graphical user interface which displays information and generally provides command control for monitoring and/or controlling applications, such as for an industrial process or industrial equipment. Such MCGUI identification information can include, but is not limited to, a unique string of letter or numbers associated with a particular MCGUI (described below in relation to
The user interface 302 is generally comprised of input devices, output devices, and software routines configured to allow a user to interact with and control software applications installed on the operator computer system 204. Such input and output devices include, but are not limited to, a display screen 304, a speaker (not shown), a keypad (not shown), a directional pad (not shown), a directional knob (not shown), and a microphone (not shown). As such, the user interface 302 can facilitate a user-software interaction for communicating with the primary and second servers 202, 206. The user interface 302 can also facilitate a user-software interaction for selecting a mode for the display screen 304, such as a single window mode or a multi-window mode. In the single window mode, a single DSW is displayed in a pre-defined region of the display screen 304. In the multi-window mode, two or more DSWs are displayed in pre-defined regions of the display screen 304. It should be well known to those skilled in the art that a display screen 304 may be comprised of either a single physical device, or multiple physical devices, such as cathode ray tubes (CRTs) or liquid crystal displays (LCDs) or other similar such devices. The user interface 302 can further facilitate a user-software interaction for selecting desired content to be displayed in one or more DSWs (described below in relation to
The system interface 314 allows the operator computer system 204 to communicate directly or indirectly with the primary and secondary servers 202, 206. If the operator computer system 204 is communicating indirectly with the servers 202, 206, then the operator computer system 204 is sending and receiving communications through a network (not shown). For example, the network (not shown) can be a wireless network such as a local area network, a wide area network, or a personal area network.
Referring now to
As shown in
As shown in
Referring now to
After step 508, the method 500 continues with step 510. In step 510, the operator computer system 204 performs actions to communicate with a primary server to select two or more MCGUIs 420, 424, 426, 428 to be displayed in the DSWs 402, 404, 406, 408. Such actions can generally include generating messages, sending generated messages to the primary server, receiving messages from the primary server, processing received messages to obtain data therefrom, and displaying the data (e.g., a set of MCGUIs) to an operator. As should be understood, the computer system actions can be performed in response to an operator (not shown) action. Thereafter, step 512 is performed where each of the selected MCGUIs 420, 424, 426, 428 is displayed in a particular DSW 402, 404, 406, 408. In step 514, identification and location information for each MCGUI 420, 424, 426, 428 is retained as stored window information, such as in the memory device 310 of the operator computer system 204. The MCGUI location information can indicate which DSW 402, 404, 406, 408 the particular MCGUI 420, 424, 426, 428 is displayed in. Subsequently, step 516 is performed where the DSW and MCGUI information are communicated, such as from the operator computer system 204 to a primary and secondary server, such as the primary and secondary servers 202, 206. In this regard, it should be understood that the information can be communicated to a primary server for purposes of maintaining a historical list of the content displayed to an operator. At the primary and secondary server 202, 206, the received information can be stored in the memory devices 222, 224, respectively.
After step 516, the method 500 continues with step 518. In step 518, the primary server 202 unintentionally goes offline or is intentionally taken offline. The term “offline” as used herein means that a computing device is not connected or available to another computing device or network. For example, if the primary server 202 needs maintenance, then the primary server 202 may be intentionally taken offline. In contrast, if the primary server 202 fails, then the primary server 202 is unintentionally taken offline. Subsequent to step 518, step 520 is performed.
In step 520, the secondary server 206, which has stored DSW and MCGUI information, performs actions to re-invoke the MCGUIs 420, 424, 426, 428 in a manner that retains their respective previous locations in the display screen 304 that existed prior to the primary server going offline. Stated differently, the prior detailed arrangement and attributes of the DSWs 402, 404, 406, 408 are retained as well as the display screen locations of the MCGUIs 420, 424, 426, 428. As such, the MCGUIs 420, 424, 426, 428 can be re-displayed to an operator (not shown) in a configuration that is based on the former configuration (i.e., the display screen configuration presented prior to step 518). The conventional system drawback (described in relation to
Referring now to
In step 606, MCGUIs 420, 424, 426, 428 are identified. Notably, the identified MCGUIs 420, 424, 426, 428 are the MCGUIs that were displayed in the display screen 304 prior to step 518 of
Upon completing step 610, step 612 is performed. In step 612, the secondary server 206 performs actions to communicate with the operator computer system 204 for displaying the identified MCGUI 420, 424, 426, 428 in accordance with the respective DSW 402, 404, 406, 408. Stated differently, the identified MCGUI 420, 424, 426, 428 is re-displayed in a display screen window of a second set of display screen windows having attributes that are the same as attributes of the identified display screen window. Such attributes include, but are not limited to, location, size, and behavioral characteristics (e.g., closable, minimizable, maximizable, draggable, and resizable). In step 614, steps 610-612 are repeated for each MCGUI of the identified MCGUIs 420, 424, 426, 428. Upon completing step 614, step 616 is performed where the re-invocation process 600 ends.
In light of the forgoing description of the invention, it should be recognized that the present invention can be realized in hardware, software, or a combination of hardware and software. A method for decoding an encoded sequence according to the present invention can be realized in a centralized fashion in one processing system, or in a distributed fashion where different elements are spread across several interconnected processing systems. Any kind of computer system, or other apparatus adapted for carrying out the methods described herein, is suited. A typical combination of hardware and software could be a general purpose computer processor, with a computer program that, when being loaded and executed, controls the computer processor such that it carries out the methods described herein. Of course, an application specific integrated circuit (ASIC), and/or a field programmable gate array (FPGA) could also be used to achieve a similar result.
The present invention can also be embedded in a computer program product, which comprises all the features enabling the implementation of the methods described herein, and which, when loaded in a computer system, is able to carry out these methods. Computer program or application in the present context means any expression, in any language, code or notation, of a set of instructions intended to cause a system having an information processing capability to perform a particular function either directly or after either or both of the following: (a) conversion to another language, code or notation; (b) reproduction in a different material form. Additionally, the description above is intended by way of example only and is not intended to limit the present invention in any way, except as set forth in the following claims.
All of the apparatus, methods and algorithms disclosed and claimed herein can be made and executed without undue experimentation in light of the present disclosure. While the invention has been described in terms of preferred embodiments, it will be apparent to those of skill in the art that variations may be applied to the apparatus, methods and sequence of steps of the method without departing from the concept, spirit and scope of the invention. More specifically, it will be apparent that certain components may be added to, combined with, or substituted for the components described herein while the same or similar results would be achieved. All such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the spirit, scope and concept of the invention as defined.
The Abstract of the Disclosure is provided to comply with 37 C.F.R. §1.72(b), requiring an abstract that will allow the reader to quickly ascertain the nature of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the following claims.
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