he ROS service server will send back the current weather status. • The second functionality here we will create a publisher that the ROS publisher node will send the speed of the autonomous vehicle. Consequently, the ROS subscriber (in Python) node will echo the plate number of the autonomous vehicle, and when the vehicle’s speed exceeds the speed limit value (speed_limit parameter). Note that the speed_limit parameter is in Kilometers per hour(K/H). Furthermore, the program must provide a launch file that

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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In this programming assignment, you need to implement the above ROS smart mobility system. However, here we will create a service that the ROS service client node will send the GPS location of the autonomous vehicle. Consequently, the ROS service server will send back the current weather status.

• The second functionality here we will create a publisher that the ROS publisher node will send the speed of the autonomous vehicle. Consequently, the ROS subscriber (in Python) node will echo the plate number of the autonomous vehicle, and when the vehicle’s speed exceeds the speed limit value (speed_limit parameter). Note that the speed_limit parameter is in Kilometers per hour(K/H).

Furthermore, the program must provide a launch file that enables the automatic running of the subscriber and publisher nodes, and sets the value of the speed_limit server parameter. 

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