In the full-color LED display engineering application, there are single display projects, but more are multiple display projects. For a single display screen, the control software configured by the manufacturer can meet the requirements; but for multiple display screens, especially for system integration projects, the control software configured by the manufacturer can hardly meet the requirements. This is because, first of all, the control software configured by the manufacturer generally only implements general functions, and it is difficult to meet the requirements for personalized functions. For example, integration projects need to be connected to the back-end database to realize real-time information publishing. It is difficult for general control software to provide this. Item function; secondly, for integration projects, display information release is only one of the components, requiring a unified control and interface style; again, in a large integration project, there may be multiple vendors winning the bid or implementing the project After many years, the products of other manufacturers are replaced or added, and the implementation technology of different manufacturers may be different.
Therefore, in order to meet the application of full-color LED display screens in engineering, manufacturers generally have to provide secondary development interfaces for system integrators to carry out secondary development and complete system integration. After market research, the current full-color LED display secondary development interface is uneven, there is no unified standard, some are too simple to meet the engineering application, and some are too complex, resulting in a long system integration cycle and high cost. Therefore, after research, this article proposes a new LED secondary development interface design method, allowing users to easily and quickly achieve system integration, while reducing secondary development time and cost.
In engineering applications, full-color LED displays are mainly used to publish information, especially to update information in real time according to changes in the background database.
A typical application is a train station, which updates ticket information such as train number, soft/hard seat ticket, sleeper ticket, departure time, etc., as well as arrival information such as the number of trains at the station, and the number of delayed trains. In addition, there are also temporary notices, train changes, and advertisements. , Waiting room location, etc. In the integrated information management system of the railway station, compared with the whole system, the information release of the full-color LED display is only a part of it, but the type, communication type, and distribution location of the full-color LED display may be very complicated.
