Trust Technologies

IconTrust supervises dedicated areas on the TFT panel and differentiates between safety-related and non safety-related information. To display image areas with safety-critical information, IconTrust configures dynamic and static monitoring areas.

The innovative technology simultaneously and independently monitors the safety-critical areas, and in case of deviations triggers a corresponding safety-oriented response. Each of the individual areas of the displayed image is analysed and compared to the value of the respective input variable during every image refresh cycle.

The patented procedure demonstrably secures topicality and correctness without subjecting the actual application that presents the information to a corresponding verification procedure. Because of this independence, there are no limits to deploying IconTrust.

Most system designs for control stations concentrate by default on the validation of the electronic process control computer according to SIL requirements (Safety Integration Level). However, the security gap in the digital displays often remains open. The cause of the error may lie in the display of false data which operators on-site and in controlled operations cannot validate in real time. At best, the system is impaired or malfunctions; at worst, lives are put at risk. This means that for every safety-relevant manually operated display and control system, appropriate corrective action for error recognition is indispensable. With IconTrust, a technology is now available which monitors and reveals potential errors on TFT-displays using a circuit which is independent of the PC. IconTrust derives the data sets as a finger print of the information currently being displayed. In this way, discrete pieces of information can be monitored independently and exclusively in various areas of the screen. Cost-effective IconTrust technology is universally suited for all applications with safety-relevant display of information, for example, in the cockpits of modern trains, in control rooms or manned surveillance systems. IconTrust can be used as a panel PC, a TFT monitor or a projector. It can also be integrated easily as an add-on into existing devices.

IconTrust derives the data sets as a finger print of the information currently displayed. In this way, discrete pieces of information can be monitored independently and exclusively in various areas of the screen. Cost-effective IconTrust technology is universally suited for all applications with safety-relevant display of information, for example, in cockpits of modern trains, in control rooms or manned surveillance systems. IconTrust can be used as a panel PC, a TFT monitor or a projector. It can also be integrated easily as an add-on into existing devices.   

In principle, all types of input signals can be monitored with IconTrust technology. These can be represented as symbols, needle instruments or bar graphs, letters, text or colour play. If required, it is possible to allow different screen representations for one and the same value of the same input signal (equivalent representations). Alongside, the configuration of an error counter for the delayed triggering of the safety reaction can be selected.

With IconTrust display type and layout can also be modified in a flexible and uncomplicated way in safety-relevant areas. If the application is in the process of being developed or adapted for a new requirement, safety can be reconfirmed without a lengthy qualification process.

IconTrust is a safe, reliable, flexible and cost-effective technology for the constant control of TFT-displays in safety-critical applications – and has been for decades now.