APPLICATION OF NODE-RED TECHNOLOGIES FOR VISUALIZING THE MOVEMENT OF OBJECTS

Abstract

The article is devoted to the development of visualization systems for the movement of unmanned moving objects, in particular, autonomous unmanned underwater vehicles, based on the use of the tool for visual programming of data streams Node-RED. The visualization system was developed using the example of using Node-RED with the integration of the Inertial Labs inertial navigation system, which includes accelerometers, gyroscopes, magnetometers, global navigation satellite system receiver. Orientation, speed and coordinates are used to visualize the movement of the object on which the navigation system is installed. The structure of the visualization system, development tools, and motion visualization tools are demonstrated. Monitoring of the visualization system and the development environment takes place in a web page, which allows you to avoid using special hardware with specific software.

A special program in the Node-RED environment has been developed for the visualization system, which is divided by functional purpose into a program for starting and stopping the navigation system, a program for receiving and processing data from the navigation system, and a data visualization program. As a result of the development of the system, a graphical interface is presented, which implements the start and stop of the navigation system, visual presentation of sensor data, visualization of the location of the object on the map, text and/or graphic (indicator) presentation of orientation, speed data, etc. The executive program of the interface in the Node-RED environment has a three-dimensional view, as an example, a program for forming a text visualization for coordinates and a program using scalar vector graphics(SVG) for visualizing the angle of the course of an object are given.

The use of Node-RED makes it possible to develop new systems of visualization, collection and analysis of data on the movement of unmanned objects as part of the navigation complexes of such objects to ensure the possibility of monitoring their functional technical condition and the fulfillment of assigned tasks.