{"action":"created","issue":{"url":"https://api.github.com/repos/riebl/artery/issues/57","repository_url":"https://api.github.com/repos/riebl/artery","labels_url":"https://api.github.com/repos/riebl/artery/issues/57/labels{/name}","comments_url":"https://api.github.com/repos/riebl/artery/issues/57/comments","events_url":"https://api.github.com/repos/riebl/artery/issues/57/events","html_url":"https://github.com/riebl/artery/issues/57","id":388004281,"node_id":"MDU6SXNzdWUzODgwMDQyODE=","number":57,"title":"CAM timestamp resolution","user":{"login":"masa1228masa","id":15319085,"node_id":"MDQ6VXNlcjE1MzE5MDg1","avatar_url":"https://avatars3.githubusercontent.com/u/15319085?v=4","gravatar_id":"","url":"https://api.github.com/users/masa1228masa","html_url":"https://github.com/masa1228masa","followers_url":"https://api.github.com/users/masa1228masa/followers","following_url":"https://api.github.com/users/masa1228masa/following{/other_user}","gists_url":"https://api.github.com/users/masa1228masa/gists{/gist_id}","starred_url":"https://api.github.com/users/masa1228masa/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/masa1228masa/subscriptions","organizations_url":"https://api.github.com/users/masa1228masa/orgs","repos_url":"https://api.github.com/users/masa1228masa/repos","events_url":"https://api.github.com/users/masa1228masa/events{/privacy}","received_events_url":"https://api.github.com/users/masa1228masa/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2018-12-06T00:26:05Z","updated_at":"2018-12-06T15:05:44Z","closed_at":null,"author_association":"NONE","body":"Hello,\r\n\r\nI want to measure the delay of CAM dissemination.\r\nSo I want to put cam.generationDeltaTime in 'ms' resolution.\r\nBut it seems that \"mLastUpdate\" in \"VehicleDataProvider::update\" has only '10^-1s' resolution (I did cout << mLastUpdate << endl;).\r\n\r\nI tried to fix this, but I couldn't.\r\nIs this a bug? Or my configuration's fault?\r\n\r\nBest regards,\r\nMasahiro\r\n"},"comment":{"url":"https://api.github.com/repos/riebl/artery/issues/comments/444901801","html_url":"https://github.com/riebl/artery/issues/57#issuecomment-444901801","issue_url":"https://api.github.com/repos/riebl/artery/issues/57","id":444901801,"node_id":"MDEyOklzc3VlQ29tbWVudDQ0NDkwMTgwMQ==","user":{"login":"riebl","id":6770449,"node_id":"MDQ6VXNlcjY3NzA0NDk=","avatar_url":"https://avatars0.githubusercontent.com/u/6770449?v=4","gravatar_id":"","url":"https://api.github.com/users/riebl","html_url":"https://github.com/riebl","followers_url":"https://api.github.com/users/riebl/followers","following_url":"https://api.github.com/users/riebl/following{/other_user}","gists_url":"https://api.github.com/users/riebl/gists{/gist_id}","starred_url":"https://api.github.com/users/riebl/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/riebl/subscriptions","organizations_url":"https://api.github.com/users/riebl/orgs","repos_url":"https://api.github.com/users/riebl/repos","events_url":"https://api.github.com/users/riebl/events{/privacy}","received_events_url":"https://api.github.com/users/riebl/received_events","type":"User","site_admin":false},"created_at":"2018-12-06T15:05:44Z","updated_at":"2018-12-06T15:05:44Z","author_association":"OWNER","body":"No, `VehicleDataProvider` reports the time stamp of the latest vehicle data update. Because of the mentioned CAM specification, `CaService` uses the time stamp from `VehicleDataProvider` to fill the CAM `generationDeltaTime`.\r\nTime points of CAM generation and vehicle data updates are not linked, even when a fixed generation rate is used: Vehicle data is updated for all vehicles at the same time point, but services are triggered with some random delay among vehicles so they do not synchronise artificially.\r\nWhile using `mTimer->getCurrentTime()` violates the CAM requirements w.r.t. `generationDeltaTime`, I guess nobody will punish you when you are doing this in a simulation ;-)"}}
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