tailieunhanh - Multi-Robot Systems From Swarms to Intelligent Automata - Parker et al (Eds) Part 12

Tham khảo tài liệu 'multi-robot systems from swarms to intelligent automata - parker et al (eds) part 12', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Deploying Air-Ground Multi-Robot Teams in Urban Environments 227 trajectory arcs corresponding to various vehicle movements . turn left go straight or turn right can be compared against this grid to verify if a collision would result. The use of a finite number of discrete trajectories rather than a more complete shortest path solver lets the system run at the rate of the camera with very little processor overhead. Figure 2 shows the trajectory performed by a robot following a sequence of waypoints in the MOUT Military Operations on Urban Terrain site at Fort Benning the main test site for this project. The MOUT site is a replica of a small city consisting of 17 two and three store buildings streets and access roads. It is configured with cameras that allow a multiple view tracking of training missions. It also features a small airfield making it a suitable test ground for air-ground cooperation. Figure 2. Trajectory of a robot navigating using a sequence of waypoints. The waypoints are depicted as and the robot executes the sequence twice. 4. Situational Awareness In our framework the main interface between a human operator and the robot team is the ROCI Browser. The browser displays the multi-robot network hierarchically the human operator can browse nodes on the network tasks running on each node the modules that make up each task and pins within those modules. The browser s main job is to give a user command and control over the network as well the ability to retrieve and visualize information from any one of the distributed nodes. Using the browser the user can start and stop the execution of tasks in the robots remotely change task parameters or send relevant control information 228 Chaimowicz et al. for the robots. Elaborated missions can be constructed using scripts. Mission scripts can be generated online or offline and specify a sequence of actions that should be performed by a team member. For example capturing panoramic images at different waypoints

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