Ni ubuhe buryo bwo guhanahana amakuru?

Ni ubuhe buryo bwo guhanahana amakuru?

Bisi y'ibarabara ry'ibarabara (CAN) ni bisi y'itumanaho ry'uruhererekane ryateguwe ku bikorwa vy'ukuri- igihe. Ishobora gutanga ibimenyetso ku bibiri bigoramye, umugozi w’ivyuma canke w’amaso. Kubera ko ikora neza cane, ukwizigirwa gukomeye, n’ibintu vyiza cane vy’ukuri {- igihe, CAN yacitse kimwe mu bibanza vyemewe cane kw’isi yose.

Ubu, uguhanahana amakuru kwa CAN ni uburyo busanzwe bwo guhanahana amakuru ku buryo bwo gucunga amabateri (BMS). Ni vyiza cane kandi birashirwa mu ngiro cane mu buryo bwo gucunga amabateri y’amabateri y’amashanyarazi yo mu gihugu no hanze, hamwe no mu ngingo ngenderwako zijanye n’amakuru ya BMS mu Bushinwa no mu mahanga. Ibindi bisi nka RS232 na RS485 na vyo nyene birakoreshwa mu guhanahana amakuru mu buryo bumwe bumwe bwo gucunga amabateri.

CAN bus communication

Kubera iterambere ry’ubuhinga bwa none bw’ubuhinga bwa none, inyishu za kera za CAN ntizigikora neza mu gutorera umuti ingorane zo guhanahana amakuru mu modoka. Muri Nzero 2000, BMW na DaimlerChrysler, mu bufatanye na Philips na Motorola, bashinze ishirahamwe rya FlexRay Consortium kugira ngo bategure uburyo bushasha bwo guhanahana amakuru maze babuteze imbere nk’umurongo w’ubuhinga bwo guhanahana amakuru, chassis, na X -bire.

FlexRay itanga ibintu vyinshi vy'ubuhinga bwa none muri - amasezerano y'itumanaho (nk'uko CAN) adafise, harimwo:

(1) Igice c'Ivyiyumviro vyinshiBuri murongo wa FlexRay utanga umurongo wa 10 Mbit/s. FlexRay ishobora gukora nk'uburyo bumwe bw'umurongo ({2}} ubuhinga (bisa n'imirongo ya CAN canke LIN) canke nk'uburyo bubiri bw'imirongo y'imirongo, bushika ku rugero rwo gutanga amakuru rw'incuro 20 Mbit/20 kuruta umuvuduko munini w'imirongo y'amashanyarazi y'ubu.

(2) Igihe c'igihe gitoUburyo bwo kuronka amakuru bukoreshwa muri FlexRay bushingiye ku gihe c’isi yose gihuye. Ico gihe gica gishingwa ubwo nyene kandi kigahurizwa hamwe n’umurongo kandi kigashirwaho ku rwego rw’ikoreshwa. Igihe c’igihe kiri hagati ya 0,5 μs na 10 μs (mu bisanzwe 1–2 μs).

(3) Imenyekanisha ry'ubuhingaGuhanahana amakuru muri FlexRay bishika mu bihe vy’itumanaho biguma bisubiramwo, aho ubutumwa bumwe bumwe buhabwa ivyicaro bihoraho (imirongo) mu nzira. Ivyo bituma uwukira amenya imbere y’igihe neza igihe ubutumwa buzoshika. Ugukevya kw’igihe c’igihe c’ugushika kw’ubutumwa ni nto cane kandi ni ikintu cemewe.

(4) Uguhangana gukomeyeUbushobozi bukomeye bwo kumenya amakosa n’ikosa - igikorwa co gukoresha ni ivyiyumviro vy’imiterere y’urufunguzo muri FlexRay.

Bisi ya FlexRay ikoresha isuzuma ry’ugusubirana kw’umubiri (CRC) kugira ngo imenye amakosa yo guhanahana amakuru.
Biciye mu nzira zibiri - Guhanahana amakuru, FlexRay itanga ugusubira inyuma.
Mu gukoresha uburyo bw'inyenyeri (canke ihuriro ry'imiterere), FlexRay ishobora gutorera umuti neza amakosa- ibisabwa, harimwo - point- y'ugugabanya.

(5) UguhinduraUguhindura ibintu kwari ikintu nyamukuru mu gihe c’iterambere ry’amategeko ya FlexRay kandi kigaragara mu mice ikurikira: ① Ishigikira imiterere myinshi y’urubuga (ibisi, inyenyeri, ivy’ubuhinga, n’ibindi); 1 Uburebure bw’ubutumwa bushobora gukoreshwa: uburebure bw’umuzigo w’amakuru bushobora guhuzwa n’ibisabwa vyihariye vy’ikoreshwa ry’igenzura; ③ Igihe ukoresha ubuhinga bwa - Igikoresho, iyo mihora ibiri irashobora gukoreshwa mu kwongerera ubugari canke gutanga ubutumwa budatomoye; ④ Igihe c’ibice bidahinduka n’inguvu mu gihe c’itumanaho gishobora guhindurwa hakurikijwe ivyo bikenewe.

FlexRay Communication

Ethernet y’inganda ni urubuga rwuguruye rwose, rwuzuye. Ivyemezo biva ku bahinga batandukanye birashobora gushika ku guhuza mu buryo bworoshe mu kwubahiriza amategeko y’urubuga. Itanga ibiharuro vyinshi vy’uguhanahana amakuru: Ethernet yaguye n’umuvuduko wa 10 Mbit/s na 100 Mbit/s yarakoreshejwe cane, ubuhinga bwa Gigabit Ethernet bwarakuze, kandi 10 Gbit/s Ethernet iriko irakora ubushakashatsi n’iterambere. Ivyo bipimo ni vyinshi cane kuruta ivyo mu mirima y’ubu.

Ariko rero, Ethernet y’inganda iracariho ingorane nyinshi, ahanini harimwo: