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Mega -streams such as the Industrial Internet of Things (IIoT) have rapidly shifted from pilot concepts and projects to group -wide applications with impressive results. As applications become more complex, the testing and measurement industry grows to be smarter and more connected. Increased availability and accessibility of smart sensor devices allows engineers to add sensors and device -level decision -making capabilities to maximize active time, improve performance and drive future product innovation. This capability becomes most important when tasks such as data collection, analysis and control must be geographically distributed and performed by different collaborative processing elements to support remote operations. This type of distributed implementation is driven by the need for higher I/O accuracy, complex and time -critical distributed control, large volume data acquisition and analytics, as well as the need to bring data to the surface of multiple stakeholders in the organization.
Figure 1. As systems become more complex, developers face the challenges of data management and visualization at different organizational levels
Web Based Application Development
Putting the right information before the right stakeholders is a critical aspect of a distributed application that directly affects the ability to make information -based business decisions. This is a very complex problem because it involves not only the creation of distributed user interfaces, but also data management capabilities, security and network concepts. Some key requirements include the development of an interface for operators to configure the system used remotely to switch between modes, change settings or modify profiles. The second scenario requires a user interface to control or monitor the control panel remotely for a small set of resources. Another typical requirement for a production engine or distributed environment testing scenario is real -time system management, including information such as health, failure and performance. Finally, management and enterprise levels require real -time driving with observations of historical data, trends and key performance indicators over time. In this way, meeting the data visualization needs of different stakeholders with different levels of complexity in all distributed scenarios becomes a challenge.
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Figure 2. Creating a remote user interface represents different levels of effort depending on the complexity and size of the system.
With this level of complexity, most test and measurement engineers find it trivial to take IIoT infrastructure off the shelf. To be more efficient, there is a need for platforms that provide the scalability and performance of mainstream Web technologies and big data that can be developed, implemented and maintained by engineers in collaboration with IT professionals, web developers, UKS and visual designers, data scientists. and stakeholders of various kinds. Over the past 3 decades, National Instruments has developed and nurtured platforms with LabVIEW, PKSI and RIO for applications to test and measure high performance on the edge. Over the past few years, it has expanded the platform by adding modular reusable software components to the network, IT/server and web layers to enable distributed applications. These platform elements are embedded in multiple software products to address the key challenges of building powerful modern engineering solutions. These challenges include managing distributed systems efficiently, as well as leveraging observations from edge -generated data and visualizing that information to make data -driven decisions.
Take, for example, the imperial requirement for distributed applications to remotely manage and configure assets to maximize operating time and operational performance. The platform includes solutions for this type of scenario through SistemLink, system management software that provides secure centralized management capabilities for distributed test, measurement and control applications. SystemLink increases system life time and system status awareness with system management tools that monitor connection status, system settings and calibration data. SystemLink improves the efficiency of mass software applications with component -level updates, dependency awareness and version history.
The need to visualize data easily is also very important for this type of distributed application, and to enable engineers to develop end-to-end solutions, productive application development tools are needed that work seamlessly together. For distributed applications, G Web Development Software complements this platform by allowing engineers to leverage the familiar LabVIEV programming paradigm and create full applications that can run on any modern web server and browser without any add-ons or downloads. G web development software integrates with across software platforms to make web technology available to create custom and remote user interfaces for new and existing applications.
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For distributed systems, web technology is fast becoming the de facto layer of applications for organizing, controlling and visualizing data. However, modern web technology is a complex collection of standards, frameworks, technologies and conventions that require significant training and experience to create expertise. Most test and measurement engineers do not consider themselves web developers and do not have the time or resources to acquire the necessary expertise. In addition, most test engineering teams cannot outsource critical parts of their applications that require web technologies such as information presentation, control schemes, security and access management because these areas require control within the organization. While adding talent for web development to a test team is possible, there is a significant risk of loss in contextual translation between test engineers and web developers. After all, common challenges to developing, deploying, maintaining and upgrading distributed systems, such as efficient lifecycle management, real -time observation and decision -making as well as creating secure access to applications, are still in the domain of the test engineering team.
With G Web Development Software, it provides an intuitive starting point for engineers creating remote control and motor interfaces for test and measurement systems. Engineers can use the familiar LabVIEV front panel and block diagram editing forms to develop engineering applications without the need for knowledge of web technologies. The web module also includes a mechanism to use web applications securely and establish communication with edge nodes. In addition, this web technology platform is designed to be highly open and expandable so that it can be used to create fully distributed applications for testing, measurement, control and motoring in collaboration with professional web developers and IT professionals. In the next section of this white paper, we describe the basic elements and guiding principles for future investments in web -based design tools.
Similarly, the concept of providing an intuitive starting point has been extended to secure and reliable data transmission over networks. G web development software includes an easy way to move data back and forth between data sources and centralized locations that act as intermediaries for data services. This is achieved through APIs built on web standards (HTTP, AMKP, Websocket) that provide common engineering cases such as scalar value tag communication to and from measuring and test devices, provide asynchronous messaging for alarm and event management as well as delivery and post-processing reporting file. Additionally, this API includes an HTTP client implementation to transfer data to and from any third-party web service. National Instruments is investigating additional data services for future releases of G web development software, such as waveform data transmission.
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Finally, web application development has also been simplified by a productive workflow to simplify the process of web application preparation and sharing. This includes access to a Web server for easy creation of hosted applications where security and access control are user -defined. Web servers can be used to host applications on dedicated computers; however, G web development software is flexible enough to produce standard output files that can be hosted by any third-party server. Looking to the future, technology will be integrated to simplify the hosting process by automating the live execution flow from the development environment to cloud services hosted by National Instruments. The service also intends to include the creation of a configuration -based control panel to make the user interface easy in a browser that connects directly to the data available in the data broker without having to program or add logic to the application.
Another guiding principle of tools for creating web -based user interfaces is to align the engineering requirements of test applications and engines with design tools to ensure best -in -class performance. From a user interface standpoint, G Web Development Software includes high -performance engineering widgets that serve as the most common scenarios for graphical representations of tanks, LEDs, meters, charts, graphs, etc. User interfaces and widgets are automatically translated into HTML and CSS code for their presentation in any modern web browser. This widget is designed with performance in mind to serve even the most demanding applications. In particular, for
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