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Figure 28. Diagram. BSM data flow diagram.

This diagram shows the component data flow for the Basic Safety Message (BSM) application. This data flow is divided into 4 sections going from left to right, each section being divided by vertical lines (a total of 5 vertical lines to mark all the sections’ boundaries). Each section contains an arrow that points slightly diagonally downward (approximately –10 degrees) from boundary to boundary. As one progresses through the sections, the diagonal arrows move lower and lower, beginning where the previous section’s arrow ends.

The first section is farthest to the left and the beginning of the first section is indicated by a vertical dashed line and an illustration of a vehicle containing an OBU above the dashed line. A solid diagonal arrow points slightly downward, starting from about 75% of the height of the first vertical line. The solid diagonal arrow represents a wired connection. Within the first section, “Vehicle Dynamics” is above the solid diagonal arrow and “Information (CAN) + Positioning (GPS)” is below the solid diagonal arrow.

The end of the first section and beginning of the second section is indicated by a solid vertical line and an illustration of an OBU above the solid line. A dashed diagonal arrow points slightly downward, starting where the previous section’s arrow ended. The dashed diagonal arrow represents a wireless connection. Within the second section, “Basic Safety Message” is above the dashed diagonal arrow and “SAE J2735 (WAVE)” is below the dashed arrow.

The end of the second section and beginning of the third section is indicated by a solid vertical line and an illustration of a Roadside Unit (RSU) above the line. A solid diagonal arrow points slightly downward, starting where the previous section’s arrow ended. Within the third section, “Basic Safety Message” is above the solid diagonal arrow and “SAE J2735 (UDP)” is below the solid diagonal arrow.

The end of the third section and beginning of the fourth section is indicated by a solid vertical line and an illustration of V2XHub above the line. A solid diagonal arrow points slightly downward, starting where the previous section’s arrow ended. Within the fourth section, “Extracted BSM Information” is above the solid diagonal arrow and “CSV” is below the solid diagonal arrow. The end of the fourth section is indicated by a solid vertical line and an illustration of data storage above the line.

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