More and more often, our industrial touch screen customers are taking advantage of the open source Linux operating system, Ubuntu. Ubuntu has evolved into a versatile, easy-to-configure environment with a large community following and massive support from the company Canonical. We have seen a steady increase in calls from customers leveraging Linux in industrial environments, and in recent years Ubuntu has been leading the charge. In addition to the standard Elo-provided Linux driver, Ubuntu users now have a very simple touch screen driver solution that requires no new software.
Depending on the environment, there are different requirements for user interfaces and how people need to interact. Recognizing this, Elo added a few features to their drivers that provide some advanced functionality to enhance usability for very specific purposes.
In most typical applications, Hope Industrial touch screens are used to be part of a PC-based HMI configuration, performing some type of PC-based control of an industrial process. The programs that generate these automation interfaces are generally designed with a very simple interface: large on-screen buttons allow simple interaction to a busy, often gloved worker. Generally, the user does not interface with the underlying PC operating system. To operate this type of application, the touch screen does no more than simply pass single “clicks” to the computer, which responds as if a mouse button was clicked.
Due to their advantages for the industrial market, Hope Industrial Systems’ products have always used resistive touch screen sensors from Elo TouchSystems , which support single-touch recognition. While many of the advanced touch features we have come to love in our smart phones require a “multi-touch” technology (like pinch-to-zoom), the recent release of a new series of drivers from Elo now allows some of these features to work with any Hope Industrial Touch Screen.
There are several factors to consider when an existing panel mount monitor has failed and it is out of warranty. Most users opt to replace the display since many manufacturers will charge more and take longer to repair the monitor when compared to buying new. Much of the reason is due to the declining cost of LCD’s over the past several years. Therefore, it is wise to consider all the factors in total cost of ownership when selecting a monitor for a new project.
An on-screen keyboard (OSK), or “virtual keyboard,” allows the user to send keystrokes to the PC without the use of a physical keyboard. A mouse, touch screen, or other pointing device is used to “type” on the virtual keyboard on the monitor screen. On-screen keyboards are a great solution when an area rarely needs a keyboard or a physical keyboard is not accessible.
When doing an initial touch screen alignment, the Elo drivers used in all of our industrial touch screens display the standard “touch the targets” dialog: the user is shown a series of onscreen targets and asked to click on them.