7,161 research outputs found

    A Framework for Collaborative Multi-task, Multi-robot Missions

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    Robotics is a transformative technology that will empower our civilization for a new scale of human endeavors. Massive scale is only possible through the collaboration of individual or groups of robots. Collaboration allows specialization, meaning a multirobot system may accommodate heterogeneous platforms including human partners. This work develops a unified control architecture for collaborative missions comprised of multiple, multi-robot tasks. Using kinematic equations and Jacobian matrices, the system states are transformed into alternative control spaces which are more useful for the designer or more convenient for the operator. The architecture allows multiple tasks to be combined, composing tightly coordinated missions. Using this approach, the designer is able to compensate for non-ideal behavior in the appropriate space using whatever control scheme they choose. This work presents a general design methodology, including analysis techniques for relevant control metrics like stability, responsiveness, and disturbance rejection, which were missing in prior work. Multiple tasks may be combined into a collaborative mission. The unified motion control architecture merges the control space components for each task into a concise federated system to facilitate analysis and implementation. The task coordination function defines task commands as functions of mission commands and state values to create explicit closed-loop collaboration. This work presents analysis techniques to understand the effects of cross-coupling tasks. This work analyzes system stability for the particular control architecture and identifies an explicit condition to ensure stable switching when reallocating robots. We are unaware of any other automated control architectures that address large-scale collaborative systems composed of task-oriented multi-robot coalitions where relative spatial control is critical to mission performance. This architecture and methodology have been validated in experiments and in simulations, repeating earlier work and exploring new scenarios and. It can perform large-scale, complex missions via a rigorous design methodology

    Improving the performance of a dismounted Future Force Warrior by means of C4I2SR

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    This thesis comprises seven peer-reviewed articles and examines systems and applications suitable for increasing Future Force Warrior performance, minimizing collateral damage, improving situational awareness and Common Operational Picture. Based on a literature study, missing functionalities of Future Force Warrior were identified and new ideas, concepts and solutions were created as part of early stages of Systems of Systems creation. These introduced ideas have not yet been implemented or tested in combat and for this reason benefit analyses are excluded. The main results of this thesis include the following: A new networking concept, Wireless Polling Sensor Network, which is a swarm of a few Unmanned Aerial Vehicles forming an ad-hoc network and polling a large number of fixed sensor nodes. The system is more robust in a military environment than traditional Wireless Sensor Networks. A Business Process approach to Service Oriented Architecture in a tactical setting is a concept for scheduling and sharing limited resources. New components to military Service Oriented Architecture have been introduced in the thesis. Other results of the thesis include an investigation of the use of Free Space Optics in tactical communications, a proposal for tracking neutral forces, a system for upgrading simple collaboration tools for command, control and collaboration purposes, a three-level hierarchy of Future Force Warrior, and methods for reducing incidents of fratricide

    Multi-Agent Systems

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    A multi-agent system (MAS) is a system composed of multiple interacting intelligent agents. Multi-agent systems can be used to solve problems which are difficult or impossible for an individual agent or monolithic system to solve. Agent systems are open and extensible systems that allow for the deployment of autonomous and proactive software components. Multi-agent systems have been brought up and used in several application domains

    ํ˜‘์—… ๋กœ๋ด‡์„ ์œ„ํ•œ ์„œ๋น„์Šค ๊ธฐ๋ฐ˜๊ณผ ๋ชจ๋ธ ๊ธฐ๋ฐ˜์˜ ์†Œํ”„ํŠธ์›จ์–ด ๊ฐœ๋ฐœ ๋ฐฉ๋ฒ•๋ก 

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    ํ•™์œ„๋…ผ๋ฌธ(๋ฐ•์‚ฌ)--์„œ์šธ๋Œ€ํ•™๊ต ๋Œ€ํ•™์› :๊ณต๊ณผ๋Œ€ํ•™ ์ „๊ธฐยท์ปดํ“จํ„ฐ๊ณตํ•™๋ถ€,2020. 2. ํ•˜์ˆœํšŒ.๊ฐ€๊นŒ์šด ๋ฏธ๋ž˜์—๋Š” ๋‹ค์–‘ํ•œ ๋กœ๋ด‡์ด ๋‹ค์–‘ํ•œ ๋ถ„์•ผ์—์„œ ํ•˜๋‚˜์˜ ์ž„๋ฌด๋ฅผ ํ˜‘๋ ฅํ•˜์—ฌ ์ˆ˜ํ–‰ํ•˜๋Š” ๋ชจ์Šต์€ ํ”ํžˆ ๋ณผ ์ˆ˜ ์žˆ๊ฒŒ ๋  ๊ฒƒ์ด๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์‹ค์ œ๋กœ ์ด๋Ÿฌํ•œ ๋ชจ์Šต์ด ์‹คํ˜„๋˜๊ธฐ์—๋Š” ๋‘ ๊ฐ€์ง€์˜ ์–ด๋ ค์›€์ด ์žˆ๋‹ค. ๋จผ์ € ๋กœ๋ด‡์„ ์šด์šฉํ•˜๊ธฐ ์œ„ํ•œ ์†Œํ”„ํŠธ์›จ์–ด๋ฅผ ๋ช…์„ธํ•˜๋Š” ๊ธฐ์กด ์—ฐ๊ตฌ๋“ค์€ ๋Œ€๋ถ€๋ถ„ ๊ฐœ๋ฐœ์ž๊ฐ€ ๋กœ๋ด‡์˜ ํ•˜๋“œ์›จ์–ด์™€ ์†Œํ”„ํŠธ์›จ์–ด์— ๋Œ€ํ•œ ์ง€์‹์„ ์•Œ๊ณ  ์žˆ๋Š” ๊ฒƒ์„ ๊ฐ€์ •ํ•˜๊ณ  ์žˆ๋‹ค. ๊ทธ๋ž˜์„œ ๋กœ๋ด‡์ด๋‚˜ ์ปดํ“จํ„ฐ์— ๋Œ€ํ•œ ์ง€์‹์ด ์—†๋Š” ์‚ฌ์šฉ์ž๋“ค์ด ์—ฌ๋Ÿฌ ๋Œ€์˜ ๋กœ๋ด‡์ด ํ˜‘๋ ฅํ•˜๋Š” ์‹œ๋‚˜๋ฆฌ์˜ค๋ฅผ ์ž‘์„ฑํ•˜๊ธฐ๋Š” ์‰ฝ์ง€ ์•Š๋‹ค. ๋˜ํ•œ, ๋กœ๋ด‡์˜ ์†Œํ”„ํŠธ์›จ์–ด๋ฅผ ๊ฐœ๋ฐœํ•  ๋•Œ ๋กœ๋ด‡์˜ ํ•˜๋“œ์›จ์–ด์˜ ํŠน์„ฑ๊ณผ ๊ด€๋ จ์ด ๊นŠ์–ด์„œ, ๋‹ค์–‘ํ•œ ๋กœ๋ด‡์˜ ์†Œํ”„ํŠธ์›จ์–ด๋ฅผ ๊ฐœ๋ฐœํ•˜๋Š” ๊ฒƒ๋„ ๊ฐ„๋‹จํ•˜์ง€ ์•Š๋‹ค. ๋ณธ ๋…ผ๋ฌธ์—์„œ๋Š” ์ƒ์œ„ ์ˆ˜์ค€์˜ ๋ฏธ์…˜ ๋ช…์„ธ์™€ ๋กœ๋ด‡์˜ ํ–‰์œ„ ํ”„๋กœ๊ทธ๋ž˜๋ฐ์œผ๋กœ ๋‚˜๋ˆ„์–ด ์ƒˆ๋กœ์šด ์†Œํ”„ํŠธ์›จ์–ด ๊ฐœ๋ฐœ ํ”„๋ ˆ์ž„์›Œํฌ๋ฅผ ์ œ์•ˆํ•œ๋‹ค. ๋˜ํ•œ, ๋ณธ ํ”„๋ ˆ์ž„์›Œํฌ๋Š” ํฌ๊ธฐ๊ฐ€ ์ž‘์€ ๋กœ๋ด‡๋ถ€ํ„ฐ ๊ณ„์‚ฐ ๋Šฅ๋ ฅ์ด ์ถฉ๋ถ„ํ•œ ๋กœ๋ด‡๋“ค์ด ์„œ๋กœ ๊ตฐ์ง‘์„ ์ด๋ฃจ์–ด ๋ฏธ์…˜์„ ์ˆ˜ํ–‰ํ•  ์ˆ˜ ์žˆ๋„๋ก ์ง€์›ํ•œ๋‹ค. ๋ณธ ์—ฐ๊ตฌ์—์„œ๋Š” ๋กœ๋ด‡์˜ ํ•˜๋“œ์›จ์–ด๋‚˜ ์†Œํ”„ํŠธ์›จ์–ด์— ๋Œ€ํ•œ ์ง€์‹์ด ๋ถ€์กฑํ•œ ์‚ฌ์šฉ์ž๋„ ๋กœ๋ด‡์˜ ๋™์ž‘์„ ์ƒ์œ„ ์ˆ˜์ค€์—์„œ ๋ช…์„ธํ•  ์ˆ˜ ์žˆ๋Š” ์Šคํฌ๋ฆฝํŠธ ์–ธ์–ด๋ฅผ ์ œ์•ˆํ•œ๋‹ค. ์ œ์•ˆํ•˜๋Š” ์–ธ์–ด๋Š” ๊ธฐ์กด์˜ ์Šคํฌ๋ฆฝํŠธ ์–ธ์–ด์—์„œ๋Š” ์ง€์›ํ•˜์ง€ ์•Š๋Š” ๋„ค ๊ฐ€์ง€์˜ ๊ธฐ๋Šฅ์ธ ํŒ€์˜ ๊ตฌ์„ฑ, ๊ฐ ํŒ€์˜ ์„œ๋น„์Šค ๊ธฐ๋ฐ˜ ํ”„๋กœ๊ทธ๋ž˜๋ฐ, ๋™์ ์œผ๋กœ ๋ชจ๋“œ ๋ณ€๊ฒฝ, ๋‹ค์ค‘ ์ž‘์—…(๋ฉ€ํ‹ฐ ํƒœ์Šคํ‚น)์„ ์ง€์›ํ•œ๋‹ค. ์šฐ์„  ๋กœ๋ด‡์€ ํŒ€์œผ๋กœ ๊ทธ๋ฃน ์ง€์„ ์ˆ˜ ์žˆ๊ณ , ๋กœ๋ด‡์ด ์ˆ˜ํ–‰ํ•  ์ˆ˜ ์žˆ๋Š” ๊ธฐ๋Šฅ์„ ์„œ๋น„์Šค ๋‹จ์œ„๋กœ ์ถ”์ƒํ™”ํ•˜์—ฌ ์ƒˆ๋กœ์šด ๋ณตํ•ฉ ์„œ๋น„์Šค๋ฅผ ๋ช…์„ธํ•  ์ˆ˜ ์žˆ๋‹ค. ๋˜ํ•œ ๋กœ๋ด‡์˜ ๋ฉ€ํ‹ฐ ํƒœ์Šคํ‚น์„ ์œ„ํ•ด 'ํ”Œ๋žœ' ์ด๋ผ๋Š” ๊ฐœ๋…์„ ๋„์ž…ํ•˜์˜€๊ณ , ๋ณตํ•ฉ ์„œ๋น„์Šค ๋‚ด์—์„œ ์ด๋ฒคํŠธ๋ฅผ ๋ฐœ์ƒ์‹œ์ผœ์„œ ๋™์ ์œผ๋กœ ๋ชจ๋“œ๊ฐ€ ๋ณ€ํ™˜ํ•  ์ˆ˜ ์žˆ๋„๋ก ํ•˜์˜€๋‹ค. ๋‚˜์•„๊ฐ€ ์—ฌ๋Ÿฌ ๋กœ๋ด‡์˜ ํ˜‘๋ ฅ์ด ๋”์šฑ ๊ฒฌ๊ณ ํ•˜๊ณ , ์œ ์—ฐํ•˜๊ณ , ํ™•์žฅ์„ฑ์„ ๋†’์ด๊ธฐ ์œ„ํ•ด, ๊ตฐ์ง‘ ๋กœ๋ด‡์„ ์šด์šฉํ•  ๋•Œ ๋กœ๋ด‡์ด ์ž„๋ฌด๋ฅผ ์ˆ˜ํ–‰ํ•˜๋Š” ๋„์ค‘์— ๋ฌธ์ œ๊ฐ€ ์ƒ๊ธธ ์ˆ˜ ์žˆ์œผ๋ฉฐ, ์ƒํ™ฉ์— ๋”ฐ๋ผ ๋กœ๋ด‡์„ ๋™์ ์œผ๋กœ ๋‹ค๋ฅธ ํ–‰์œ„๋ฅผ ์ˆ˜ํ–‰ํ•  ์ˆ˜ ์žˆ๋‹ค๊ณ  ๊ฐ€์ •ํ•œ๋‹ค. ์ด๋ฅผ ์œ„ํ•ด ๋™์ ์œผ๋กœ๋„ ํŒ€์„ ๊ตฌ์„ฑํ•  ์ˆ˜ ์žˆ๊ณ , ์—ฌ๋Ÿฌ ๋Œ€์˜ ๋กœ๋ด‡์ด ํ•˜๋‚˜์˜ ์„œ๋น„์Šค๋ฅผ ์ˆ˜ํ–‰ํ•˜๋Š” ๊ทธ๋ฃน ์„œ๋น„์Šค๋ฅผ ์ง€์›ํ•˜๊ณ , ์ผ๋Œ€ ๋‹ค ํ†ต์‹ ๊ณผ ๊ฐ™์€ ์ƒˆ๋กœ์šด ๊ธฐ๋Šฅ์„ ์Šคํฌ๋ฆฝํŠธ ์–ธ์–ด์— ๋ฐ˜์˜ํ•˜์˜€๋‹ค. ๋”ฐ๋ผ์„œ ํ™•์žฅ๋œ ์ƒ์œ„ ์ˆ˜์ค€์˜ ์Šคํฌ๋ฆฝํŠธ ์–ธ์–ด๋Š” ๋น„์ „๋ฌธ๊ฐ€๋„ ๋‹ค์–‘ํ•œ ์œ ํ˜•์˜ ํ˜‘๋ ฅ ์ž„๋ฌด๋ฅผ ์‰ฝ๊ฒŒ ๋ช…์„ธํ•  ์ˆ˜ ์žˆ๋‹ค. ๋กœ๋ด‡์˜ ํ–‰์œ„๋ฅผ ํ”„๋กœ๊ทธ๋ž˜๋ฐํ•˜๊ธฐ ์œ„ํ•ด ๋‹ค์–‘ํ•œ ์†Œํ”„ํŠธ์›จ์–ด ๊ฐœ๋ฐœ ํ”„๋ ˆ์ž„์›Œํฌ๊ฐ€ ์—ฐ๊ตฌ๋˜๊ณ  ์žˆ๋‹ค. ํŠนํžˆ ์žฌ์‚ฌ์šฉ์„ฑ๊ณผ ํ™•์žฅ์„ฑ์„ ์ค‘์ ์œผ๋กœ ๋‘” ์—ฐ๊ตฌ๋“ค์ด ์ตœ๊ทผ ๋งŽ์ด ์‚ฌ์šฉ๋˜๊ณ  ์žˆ์ง€๋งŒ, ๋Œ€๋ถ€๋ถ„์˜ ์ด๋“ค ์—ฐ๊ตฌ๋Š” ๋ฆฌ๋ˆ…์Šค ์šด์˜์ฒด์ œ์™€ ๊ฐ™์ด ๋งŽ์€ ํ•˜๋“œ์›จ์–ด ์ž์›์„ ํ•„์š”๋กœ ํ•˜๋Š” ์šด์˜์ฒด์ œ๋ฅผ ๊ฐ€์ •ํ•˜๊ณ  ์žˆ๋‹ค. ๋˜ํ•œ, ํ”„๋กœ๊ทธ๋žจ์˜ ๋ถ„์„ ๋ฐ ์„ฑ๋Šฅ ์˜ˆ์ธก ๋“ฑ์„ ๊ณ ๋ คํ•˜์ง€ ์•Š๊ธฐ ๋•Œ๋ฌธ์—, ์ž์› ์ œ์•ฝ์ด ์‹ฌํ•œ ํฌ๊ธฐ๊ฐ€ ์ž‘์€ ๋กœ๋ด‡์˜ ์†Œํ”„ํŠธ์›จ์–ด๋ฅผ ๊ฐœ๋ฐœํ•˜๊ธฐ์—๋Š” ์–ด๋ ต๋‹ค. ๊ทธ๋ž˜์„œ ๋ณธ ์—ฐ๊ตฌ์—์„œ๋Š” ์ž„๋ฒ ๋””๋“œ ์†Œํ”„ํŠธ์›จ์–ด๋ฅผ ์„ค๊ณ„ํ•  ๋•Œ ์“ฐ์ด๋Š” ์ •ํ˜•์ ์ธ ๋ชจ๋ธ์„ ์ด์šฉํ•œ๋‹ค. ์ด ๋ชจ๋ธ์€ ์ •์  ๋ถ„์„๊ณผ ์„ฑ๋Šฅ ์˜ˆ์ธก์ด ๊ฐ€๋Šฅํ•˜์ง€๋งŒ, ๋กœ๋ด‡์˜ ํ–‰์œ„๋ฅผ ํ‘œํ˜„ํ•˜๊ธฐ์—๋Š” ์ œ์•ฝ์ด ์žˆ๋‹ค. ๊ทธ๋ž˜์„œ ๋ณธ ๋…ผ๋ฌธ์—์„œ ์™ธ๋ถ€์˜ ์ด๋ฒคํŠธ์— ์˜ํ•ด ์ˆ˜ํ–‰ ์ค‘๊ฐ„์— ํ–‰์œ„๋ฅผ ๋ณ€๊ฒฝํ•˜๋Š” ๋กœ๋ด‡์„ ์œ„ํ•ด ์œ ํ•œ ์ƒํƒœ ๋จธ์‹  ๋ชจ๋ธ๊ณผ ๋ฐ์ดํ„ฐ ํ”Œ๋กœ์šฐ ๋ชจ๋ธ์ด ๊ฒฐํ•ฉํ•˜์—ฌ ๋™์  ํ–‰์œ„๋ฅผ ๋ช…์„ธํ•  ์ˆ˜ ์žˆ๋Š” ํ™•์žฅ๋œ ๋ชจ๋ธ์„ ์ ์šฉํ•œ๋‹ค. ๊ทธ๋ฆฌ๊ณ  ๋”ฅ๋Ÿฌ๋‹๊ณผ ๊ฐ™์ด ๊ณ„์‚ฐ๋Ÿ‰์„ ๋งŽ์ด ํ•„์š”๋กœ ํ•˜๋Š” ์‘์šฉ์„ ๋ถ„์„ํ•˜๊ธฐ ์œ„ํ•ด, ๋ฃจํ”„ ๊ตฌ์กฐ๋ฅผ ๋ช…์‹œ์ ์œผ๋กœ ํ‘œํ˜„ํ•  ์ˆ˜ ์žˆ๋Š” ๋ชจ๋ธ์„ ์ œ์•ˆํ•œ๋‹ค. ๋งˆ์ง€๋ง‰์œผ๋กœ ์—ฌ๋Ÿฌ ๋กœ๋ด‡์˜ ํ˜‘์—… ์šด์šฉ์„ ์œ„ํ•ด ๋กœ๋ด‡ ์‚ฌ์ด์— ๊ณต์œ ๋˜๋Š” ์ •๋ณด๋ฅผ ๋‚˜ํƒ€๋‚ด๊ธฐ ์œ„ํ•ด ๋‘ ๊ฐ€์ง€ ๋ชจ๋ธ์„ ์‚ฌ์šฉํ•œ๋‹ค. ๋จผ์ € ์ค‘์•™์—์„œ ๊ณต์œ  ์ •๋ณด๋ฅผ ๊ด€๋ฆฌํ•˜๊ธฐ ์œ„ํ•ด ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ ํƒœ์Šคํฌ๋ผ๋Š” ํŠน๋ณ„ํ•œ ํƒœ์Šคํฌ๋ฅผ ํ†ตํ•ด ๊ณต์œ  ์ •๋ณด๋ฅผ ๋‚˜ํƒ€๋‚ธ๋‹ค. ๋˜ํ•œ, ๋กœ๋ด‡์ด ์ž์‹ ์˜ ์ •๋ณด๋ฅผ ๊ฐ€๊นŒ์šด ๋กœ๋ด‡๋“ค๊ณผ ๊ณต์œ ํ•˜๊ธฐ ์œ„ํ•ด ๋ฉ€ํ‹ฐ์บ์ŠคํŒ…์„ ์œ„ํ•œ ์ƒˆ๋กœ์šด ํฌํŠธ๋ฅผ ์ถ”๊ฐ€ํ•œ๋‹ค. ์ด๋ ‡๊ฒŒ ํ™•์žฅ๋œ ์ •ํ˜•์ ์ธ ๋ชจ๋ธ์€ ์‹ค์ œ ๋กœ๋ด‡ ์ฝ”๋“œ๋กœ ์ž๋™ ์ƒ์„ฑ๋˜์–ด, ์†Œํ”„ํŠธ์›จ์–ด ์„ค๊ณ„ ์ƒ์‚ฐ์„ฑ ๋ฐ ๊ฐœ๋ฐœ ํšจ์œจ์„ฑ์— ์ด์ ์„ ๊ฐ€์ง„๋‹ค. ๋น„์ „๋ฌธ๊ฐ€๊ฐ€ ๋ช…์„ธํ•œ ์Šคํฌ๋ฆฝํŠธ ์–ธ์–ด๋Š” ์ •ํ˜•์ ์ธ ํƒœ์Šคํฌ ๋ชจ๋ธ๋กœ ๋ณ€ํ™˜ํ•˜๊ธฐ ์œ„ํ•ด ์ค‘๊ฐ„ ๋‹จ๊ณ„์ธ ์ „๋žต ๋‹จ๊ณ„๋ฅผ ์ถ”๊ฐ€ํ•˜์˜€๋‹ค. ์ œ์•ˆํ•˜๋Š” ๋ฐฉ๋ฒ•๋ก ์˜ ํƒ€๋‹น์„ฑ์„ ๊ฒ€์ฆํ•˜๊ธฐ ์œ„ํ•ด, ์‹œ๋ฎฌ๋ ˆ์ด์…˜๊ณผ ์—ฌ๋Ÿฌ ๋Œ€์˜ ์‹ค์ œ ๋กœ๋ด‡์„ ์ด์šฉํ•œ ํ˜‘์—…ํ•˜๋Š” ์‹œ๋‚˜๋ฆฌ์˜ค์— ๋Œ€ํ•ด ์‹คํ—˜์„ ์ง„ํ–‰ํ•˜์˜€๋‹ค.In the near future, it will be common that a variety of robots are cooperating to perform a mission in various fields. There are two software challenges when deploying collaborative robots: how to specify a cooperative mission and how to program each robot to accomplish its mission. In this paper, we propose a novel software development framework that separates mission specification and robot behavior programming, which is called service-oriented and model-based (SeMo) framework. Also, it can support distributed robot systems, swarm robots, and their hybrid. For mission specification, a novel scripting language is proposed with the expression capability. It involves team composition and service-oriented behavior specification of each team, allowing dynamic mode change of operation and multi-tasking. Robots are grouped into teams, and the behavior of each team is defined with a composite service. The internal behavior of a composite service is defined by a sequence of services that the robots will perform. The notion of plan is applied to express multi-tasking. And the robot may have various operating modes, so mode change is triggered by events generated in a composite service. Moreover, to improve the robustness, scalability, and flexibility of robot collaboration, the high-level mission scripting language is extended with new features such as team hierarchy, group service, one-to-many communication. We assume that any robot fails during the execution of scenarios, and the grouping of robots can be made at run-time dynamically. Therefore, the extended mission specification enables a casual user to specify various types of cooperative missions easily. For robot behavior programming, an extended dataflow model is used for task-level behavior specification that does not depend on the robot hardware platform. To specify the dynamic behavior of the robot, we apply an extended task model that supports a hybrid specification of dataflow and finite state machine models. Furthermore, we propose a novel extension to allow the explicit specification of loop structures. This extension helps the compute-intensive application, which contains a lot of loop structures, to specify explicitly and analyze at compile time. Two types of information sharing, global information sharing and local knowledge sharing, are supported for robot collaboration in the dataflow graph. For global information, we use the library task, which supports shared resource management and server-client interaction. On the other hand, to share information locally with near robots, we add another type of port for multicasting and use the knowledge sharing technique. The actual robot code per robot is automatically generated from the associated task graph, which minimizes the human efforts in low-level robot programming and improves the software design productivity significantly. By abstracting the tasks or algorithms as services and adding the strategy description layer in the design flow, the mission specification is refined into task-graph specification automatically. The viability of the proposed methodology is verified with preliminary experiments with three cooperative mission scenarios with heterogeneous robot platforms and robot simulator.Chapter 1. Introduction 1 1.1 Motivation 1 1.2 Contribution 7 1.3 Dissertation Organization 9 Chapter 2. Background and Existing Research 11 2.1 Terminologies 11 2.2 Robot Software Development Frameworks 25 2.3 Parallel Embedded Software Development Framework 31 Chapter 3. Overview of the SeMo Framework 41 3.1 Motivational Examples 45 Chapter 4. Robot Behavior Programming 47 4.1 Related works 48 4.2 Model-based Task Graph Specification for Individual Robots 56 4.3 Model-based Task Graph Specification for Cooperating Robots 70 4.4 Automatic Code Generation 74 4.5 Experiments 78 Chapter 5. High-level Mission Specification 81 5.1 Service-oriented Mission Specification 82 5.2 Strategy Description 93 5.3 Automatic Task Graph Generation 96 5.4 Related works 99 5.5 Experiments 104 Chapter 6. Conclusion 114 6.1 Future Research 116 Bibliography 118 Appendices 133 ์š”์•ฝ 158Docto

    Embedded middleware for smart camera networks and sensor fusion

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    Abstract Smart cameras are an interesting research field that has evolved over the last decade. In this chapter we focus on the integration of multiple, potentially heterogeneous, smart cameras into a distributed system for computer vision and sensor fusion. An important aspect for every distributed system is the system-level software, also called middleware. Hence, we discuss the requirements on middleware for distributed smart cameras and the services such a middleware has to provide. In our opinion a middleware following the agent-oriented paradigm allows to build flexible and self-organizing applications that encourage a modular design
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