{"id":36,"date":"2016-10-18T03:03:24","date_gmt":"2016-10-18T03:03:24","guid":{"rendered":"http:\/\/mrsdprojects.ri.cmu.edu\/2016teamh\/?page_id=36"},"modified":"2016-10-22T01:48:47","modified_gmt":"2016-10-22T01:48:47","slug":"requirements","status":"publish","type":"page","link":"https:\/\/mrsdprojects.ri.cmu.edu\/2016teamh\/requirements\/","title":{"rendered":"Requirements"},"content":{"rendered":"

\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t\n\t
Mandatory Performance Requirements<\/th>\n<\/tr>\n<\/thead>\n
MPR<\/td>Allow navigation by natural locomotion<\/strong><\/td>\n<\/tr>\n
MPR1<\/td>Detect the user\u2019s intended position to within +\/- 0.5 m<\/strong><\/td>\n<\/tr>\n
MPR2<\/td>Detect the user\u2019s intended velocity to within +\/- 0.25 m\/s<\/strong><\/td>\n<\/tr>\n
MPR3<\/td>Render a flat virtual ground with consistent height (+\/- 3 centimeters)<\/strong><\/td>\n<\/tr>\n
MPR4<\/td>Provide stable walking surface<\/strong><\/td>\n<\/tr>\n
<\/td>Shall support the user\u2019s weight (up to 220 pounds)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/p>\n

\n

\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t
Mandatory Non-Functional Requirements<\/th>\n<\/tr>\n<\/thead>\n
MNR1<\/td>Provide stable walking surface<\/strong><\/td>\n<\/tr>\n
<\/td>Support the user\u2019s weight; provide contact forces across the user's entire foot and apply adjustments to the user's center of mass below the perceptible threshold<\/td>\n<\/tr>\n
MNR2<\/td>Ensure comfortable interaction forces<\/strong><\/td>\n<\/tr>\n
<\/td>Accelerate within a comfortable threshold and apply contact normal to the virtual ground<\/td>\n<\/tr>\n
MNR3<\/td>Only rely on common household utilities for supply\/charging<\/strong><\/td>\n<\/tr>\n
<\/td>Runs on 110-240V, 50-60Hz power supply, Interfaces through a regular power socket<\/td>\n<\/tr>\n
MNR4<\/td>Cost less than $5000 of MRSD funds to develop<\/strong><\/td>\n<\/tr>\n
<\/td>System not including pc, HMD and kind should cost less than $5000; MRSD Project Course requirement<\/td>\n<\/tr>\n
MNR5<\/td>Initial demonstration in December<\/strong><\/td>\n<\/tr>\n
<\/td>Concept demonstration in December for Fall Validation; MRSD Project Course requirement: Simulation of intended system for stepping, basic mechanical structure, interface room-scale sensor<\/td>\n<\/tr>\n
MNR6<\/td>Final demonstration in May<\/strong><\/td>\n<\/tr>\n
<\/td>Prototype demo in May for Spring Validation; MRSD Project Course requirement: Slow, halting walking pro-totype<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/p>\n

\n

\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t
Desirable Performance Requirements<\/th>\n<\/tr>\n<\/thead>\n
DPR1<\/td>Display the virtual world<\/strong><\/td>\n<\/tr>\n
<\/td>Determine the user\u2019s head orientation (+\/- 10 degrees)<\/td>\n<\/tr>\n
DPR2<\/td>Allow navigation by natural locomotion<\/strong><\/td>\n<\/tr>\n
<\/td>Realistic consistent friction coefficient (0.75 +\/- 0.2)
\nRealistic consistent normal forces (body mass +\/- 20% kg)<\/td>\n<\/tr>\n
DPR3<\/td>Translate the user\u2019s pose and velocity to a virtual avatar\u2019s position and velocity<\/strong><\/td>\n<\/tr>\n
<\/td>With a tolerance of +\/- 25%<\/td>\n<\/tr>\n
DPR4<\/td>Ensure comfortable interaction forces<\/strong><\/td>\n<\/tr>\n
<\/td>Adjustments to the user's center of mass shall be applied within a comfortable threshold (Acceleration<0.15gs)
\nEmulate free space where the user is not in ground contact (Leg Moment of Inertia +\/- 20% Nm-1)<\/td>\n<\/tr>\n
DPR5<\/td>Constrain user to room-scale volume (12x12x10)<\/strong><\/td>\n<\/tr>\n
DPR6<\/td>Only rely on common household utilities for supply\/charging<\/strong><\/td>\n<\/tr>\n
<\/td>Runs on 110-240V, 50-60Hz power supply, Interfaces through a regular power socket<\/td>\n<\/tr>\n
DPR7<\/td>Support object manipulation<\/strong><\/td>\n<\/tr>\n
<\/td>Detect user hand position (+\/- 6 cm) and grasp state<\/td>\n<\/tr>\n
DPR8<\/td>Operate for an entire gaming session<\/strong><\/td>\n<\/tr>\n
<\/td>The system should maintain sync between the senses, limits the no of times a failsafe is triggered and be capable of operating consecutive sessions<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/p>\n

\n

\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t
Desirable Non-Functional Requirements<\/th>\n<\/tr>\n<\/thead>\n
DNR1<\/td>Provide stable walking surface<\/strong><\/td>\n<\/tr>\n
<\/td>Support the user\u2019s weight; provide contact forces across the user's entire foot and apply adjustments to the user's center of mass below the perceptible threshold<\/td>\n<\/tr>\n
DNR2<\/td>Ensure comfortable interaction forces<\/strong><\/td>\n<\/tr>\n
<\/td>Accelerate within a comfortable threshold and apply contact normal to the virtual ground<\/td>\n<\/tr>\n
DNR3<\/td>DNR3\tCost less than $5000 of MRSD funds to develop<\/strong><\/td>\n<\/tr>\n
<\/td>System including pc, HMD and kind should cost less than $5000<\/td>\n<\/tr>\n
DNR4<\/td>Initial demonstration in December<\/strong><\/td>\n<\/tr>\n
<\/td>Concept demonstration in December for Fall Validation; MRSD Project Course requirement: Simulation of intended system for walking, basic mechanical implementation, multiple sensors interfaced in a hardware loop<\/td>\n<\/tr>\n
DNR5<\/td>Final demonstration in May<\/strong><\/td>\n<\/tr>\n
<\/td>Prototype demo in May for Spring Validation; MRSD Project Course requirement: HMD-interfaced strolling prototype<\/td>\n<\/tr>\n
DNR6<\/td>Limit user-attached equipment<\/strong><\/td>\n<\/tr>\n
<\/td>Limited in terms of both the number of attachments as well as the force applied for each attachment<\/td>\n<\/tr>\n
DNR7<\/td>Involve a minimal setup and breakdown effort<\/strong><\/td>\n<\/tr>\n
<\/td>In terms of requirement of space for whole system (16x16x10), number of connections to supply, and the time spent installing packages\/software in the computing machine. (Ideally, spend no more than 6 hours on initial installation and 30 minutes on each incremental setup time)<\/td>\n<\/tr>\n
DNR8<\/td>Is relatively quiet and clean<\/strong><\/td>\n<\/tr>\n
<\/td>Does not produce noise levels that causes a nuisance to the user (90 dB)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":85,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-fullwidth.php","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"class_list":["post-36","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/mrsdprojects.ri.cmu.edu\/2016teamh\/wp-json\/wp\/v2\/pages\/36","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mrsdprojects.ri.cmu.edu\/2016teamh\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mrsdprojects.ri.cmu.edu\/2016teamh\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mrsdprojects.ri.cmu.edu\/2016teamh\/wp-json\/wp\/v2\/users\/85"}],"replies":[{"embeddable":true,"href":"https:\/\/mrsdprojects.ri.cmu.edu\/2016teamh\/wp-json\/wp\/v2\/comments?post=36"}],"version-history":[{"count":11,"href":"https:\/\/mrsdprojects.ri.cmu.edu\/2016teamh\/wp-json\/wp\/v2\/pages\/36\/revisions"}],"predecessor-version":[{"id":98,"href":"https:\/\/mrsdprojects.ri.cmu.edu\/2016teamh\/wp-json\/wp\/v2\/pages\/36\/revisions\/98"}],"wp:attachment":[{"href":"https:\/\/mrsdprojects.ri.cmu.edu\/2016teamh\/wp-json\/wp\/v2\/media?parent=36"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}