{"id":1456,"date":"2022-03-29T14:30:13","date_gmt":"2022-03-29T06:30:13","guid":{"rendered":"https:\/\/www.w-bus.com\/?p=1456"},"modified":"2022-03-29T14:48:47","modified_gmt":"2022-03-29T06:48:47","slug":"%e6%99%ba%e8%83%bd%e7%85%a7%e6%98%8e%e5%9f%ba%e7%a1%80%e7%9f%a5%e8%af%86%e4%b8%89%ef%bc%9acan%e6%80%bb%e7%ba%bf","status":"publish","type":"post","link":"https:\/\/www.w-bus.com\/2022\/03\/%e6%99%ba%e8%83%bd%e7%85%a7%e6%98%8e%e5%9f%ba%e7%a1%80%e7%9f%a5%e8%af%86%e4%b8%89%ef%bc%9acan%e6%80%bb%e7%ba%bf","title":{"rendered":"\u667a\u80fd\u7167\u660e\u57fa\u7840\u77e5\u8bc6\u4e09\uff1aCAN\u603b\u7ebf"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">1\uff0eCAN\u603b\u7ebf\u662f\u4ec0\u4e48\uff1f<\/h2>\n\n\n\n<p>&nbsp; &nbsp; CAN\uff08Controller Area Network\uff09\u662fISO\u56fd\u9645\u6807\u51c6\u5316\u7684\u4e32\u884c\u901a\u4fe1\u534f\u8bae\u3002\u5e7f\u6cdb\u5e94\u7528\u4e8e\u6c7d\u8f66\u3001\u8239\u8236\u7b49\u3002\u5177\u6709\u5df2\u7ecf\u88ab\u5927\u5bb6\u8ba4\u53ef\u7684\u9ad8\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n<p>&nbsp; &nbsp; CAN\u63a7\u5236\u5668\u901a\u8fc7\u7ec4\u6210\u603b\u7ebf\u76842\u6839\u7ebf\uff08CAN-H\u548cCAN-L\uff09\u7684\u7535\u4f4d\u5dee\u6765\u786e\u5b9a\u603b\u7ebf\u7684\u7535\u5e73\uff0c\u5728\u4efb\u4e00\u65f6\u523b\uff0c\u603b\u7ebf\u4e0a\u67092\u79cd\u7535\u5e73\uff1a\u663e\u6027\u7535\u5e73\u548c\u9690\u6027\u7535\u5e73\u3002<\/p>\n\n\n\n<p>&nbsp; &nbsp; \u201c\u663e\u6027\u201d\u5177\u6709\u201c\u4f18\u5148\u201d\u7684\u610f\u5473\uff0c\u53ea\u8981\u6709\u4e00\u4e2a\u5355\u5143\u8f93\u51fa\u663e\u6027\u7535\u5e73\uff0c\u603b\u7ebf\u4e0a\u5373\u4e3a\u663e\u6027\u7535\u5e73\uff0c\u5e76\u4e14\uff0c\u201c\u9690\u6027\u201d\u5177\u6709\u201c\u5305\u5bb9\u201d\u7684\u610f\u5473\uff0c\u53ea\u6709\u6240\u6709\u7684\u5355\u5143\u90fd\u8f93\u51fa\u9690\u6027\u7535\u5e73\uff0c\u603b\u7ebf\u4e0a\u624d\u4e3a\u9690\u6027\u7535\u5e73\u3002\uff08\u663e\u6027\u7535\u5e73\u6bd4\u9690\u6027\u7535\u5e73\u66f4\u5f3a\uff09\u3002<\/p>\n\n\n\n<p>&nbsp; &nbsp; \u603b\u7ebf\u4e0a\u6267\u884c\u903b\u8f91\u4e0a\u7684\u7ebf\u201c\u4e0e\u201d\u65f6\uff0c\u663e\u6027\u7535\u5e73\u7684\u903b\u8f91\u503c\u4e3a\u201c0\u201d\uff0c\u9690\u6027\u7535\u5e73\u4e3a\u201c1\u201d\u3002<\/p>\n\n\n\n<p>&nbsp; &nbsp; \u4e0b\u56fe\u663e\u793a\u4e86\u4e00\u4e2a\u5178\u578b\u7684CAN\u62d3\u6251\u8fde\u63a5\u56fe\u3002<\/p>\n\n\n\n<p>&nbsp; &nbsp; \u8fde\u63a5\u5728\u603b\u7ebf\u4e0a\u7684\u6240\u6709\u5355\u5143\u90fd\u80fd\u591f\u53d1\u9001\u4fe1\u606f\uff0c\u5982\u679c\u6709\u8d85\u8fc7\u4e00\u4e2a\u5355\u5143\u5728\u540c\u4e00\u65f6\u523b\u53d1\u9001\u4fe1\u606f\uff0c\u6709\u6700\u9ad8\u4f18\u5148\u7ea7\u7684\u5355\u5143\u83b7\u5f97\u53d1\u9001\u7684\u8d44\u683c\uff0c\u6240\u6709\u5176\u5b83\u5355\u5143\u6267\u884c\u63a5\u6536\u64cd\u4f5c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2\uff0eCAN\u603b\u7ebf\u7684\u7279\u70b9<\/h2>\n\n\n\n<p>&nbsp; &nbsp; &nbsp;CAN\u603b\u7ebf\u534f\u8bae\u5177\u6709\u4e0b\u9762\u7684\u7279\u70b9\uff1a<\/p>\n\n\n\n<p>&nbsp; &nbsp; 1) \u591a\u4e3b\u63a7\u5236<\/p>\n\n\n\n<p>&nbsp; &nbsp; \u5f53\u603b\u7ebf\u7a7a\u95f2\u65f6\uff0c\u8fde\u63a5\u5230\u603b\u7ebf\u4e0a\u7684\u6240\u6709\u5355\u5143\u90fd\u53ef\u4ee5\u542f\u52a8\u53d1\u9001\u4fe1\u606f\uff0c\u8fd9\u5c31\u662f\u6240\u8c13\u7684\u591a\u4e3b\u63a7\u5236\u7684\u6982\u5ff5\u3002<\/p>\n\n\n\n<p>&nbsp; &nbsp; \u5148\u5360\u6709\u603b\u7ebf\u7684\u8bbe\u5907\u83b7\u5f97\u5728\u603b\u7ebf\u4e0a\u8fdb\u884c\u53d1\u9001\u4fe1\u606f\u7684\u8d44\u683c\u3002\u8fd9\u5c31\u662f\u6240\u8c13\u7684CSMA\/CR\uff08Carrier Sense MultipleAccess\/Collosion Avoidance\uff09\u65b9\u6cd5<\/p>\n\n\n\n<p>&nbsp; &nbsp; \u5982\u679c\u591a\u4e2a\u8bbe\u5907\u540c\u65f6\u5f00\u59cb\u53d1\u9001\u4fe1\u606f\uff0c\u90a3\u4e48\u53d1\u9001\u6700\u9ad8\u4f18\u5148\u7ea7ID\u6d88\u606f\u7684\u8bbe\u5907\u83b7\u5f97\u53d1\u9001\u8d44\u683c\u3002<\/p>\n\n\n\n<p>&nbsp; &nbsp; 2) \u4fe1\u606f\u7684\u53d1\u9001<\/p>\n\n\n\n<p>&nbsp; &nbsp; \u5728CAN\u534f\u8bae\u4e2d\uff0c\u6240\u6709\u53d1\u9001\u7684\u4fe1\u606f\u8981\u6ee1\u8db3\u9884\u5148\u5b9a\u4e49\u7684\u683c\u5f0f\u3002\u5f53\u603b\u7ebf\u6ca1\u6709\u88ab\u5360\u7528\u7684\u65f6\u5019\uff0c\u8fde\u63a5\u5728\u603b\u7ebf\u4e0a\u7684\u4efb\u4f55\u8bbe\u5907\u90fd\u80fd\u8d77\u52a8\u65b0\u4fe1\u606f\u7684\u4f20\u8f93\uff0c\u5982\u679c\u4e24\u4e2a\u6216\u66f4\u591a\u4e2a\u8bbe\u5907\u5728\u540c\u65f6\u523b\u542f\u52a8\u4fe1\u606f\u7684\u4f20\u8f93\uff0c\u901a\u8fc7ID\u6765\u51b3\u5b9a\u4f18\u5148\u7ea7\u3002ID\u5e76\u4e0d\u662f\u6307\u660e\u4fe1\u606f\u53d1\u9001\u7684\u76ee\u7684\u5730\uff0c\u800c\u662f\u6307\u793a\u4fe1\u606f\u7684\u4f18\u5148\u7ea7\u3002\u5982\u679c2\u4e2a\u6216\u8005\u66f4\u591a\u7684\u8bbe\u5907\u5728\u540c\u4e00\u65f6\u523b\u542f\u52a8\u4fe1\u606f\u7684\u4f20\u8f93\uff0c\u5728\u603b\u7ebf\u4e0a\u6309\u7167\u4fe1\u606f\u6240\u5305\u542b\u7684ID\u7684\u6bcf\u4e00\u4f4d\u6765\u7ade\u4e89\uff0c\u8d62\u5f97\u7ade\u4e89\u7684\u8bbe\u5907\uff08\u4e5f\u5c31\u662f\u5177\u6709\u6700\u9ad8\u4f18\u5148\u7ea7\u7684\u4fe1\u606f\uff09\u80fd\u591f\u7ee7\u7eed\u53d1\u9001\uff0c\u800c\u5931\u8d25\u8005\u5219\u7acb\u523b\u505c\u6b62\u53d1\u9001\u5e76\u8fdb\u5165\u63a5\u6536\u64cd\u4f5c\u3002\u56e0\u4e3a\u603b\u7ebf\u4e0a\u540c\u4e00\u65f6\u523b\u53ea\u53ef\u80fd\u6709\u4e00\u4e2a\u53d1\u9001\u8005\uff0c\u800c\u5176\u5b83\u5747\u5904\u4e8e\u63a5\u6536\u72b6\u6001\uff0c\u6240\u4ee5\uff0c\u5e76\u4e0d\u9700\u8981\u5728\u5e95\u5c42\u534f\u8bae\u4e2d\u5b9a\u4e49\u5730\u5740\u7684\u6982\u5ff5\u3002<\/p>\n\n\n\n<p>&nbsp; &nbsp; 3) \u7cfb\u7edf\u7684\u7075\u6d3b\u6027<\/p>\n\n\n\n<p>&nbsp; &nbsp; \u8fde\u63a5\u5230\u603b\u7ebf\u4e0a\u7684\u5355\u5143\u5e76\u6ca1\u6709\u7c7b\u4f3c\u5730\u5740\u8fd9\u6837\u7684\u6807\u8bc6\uff0c\u6240\u4ee5\uff0c\u6dfb\u52a0\u6216\u53bb\u9664\u4e00\u4e2a\u8bbe\u5907\uff0c\u65e0\u9700\u6539\u53d8\u8f6f\u4ef6\u548c\u786c\u4ef6\uff0c\u6216\u5176\u5b83\u8bbe\u5907\u7684\u5e94\u7528\u5c42\u8f6f\u4ef6\u3002<\/p>\n\n\n\n<p>&nbsp; &nbsp; 4) \u901a\u4fe1\u901f\u5ea6<\/p>\n\n\n\n<p>&nbsp; &nbsp; \u53ef\u4ee5\u8bbe\u7f6e\u4efb\u4f55\u901a\u8baf\u901f\u5ea6\uff0c\u4ee5\u9002\u5e94\u7f51\u7edc\u89c4\u6a21\u3002<\/p>\n\n\n\n<p>&nbsp; &nbsp; \u5bf9\u4e00\u4e2a\u7f51\u7edc\uff0c\u6240\u6709\u5355\u5143\u5fc5\u987b\u6709\u76f8\u540c\u7684\u901a\u8baf\u901f\u5ea6\uff0c\u5982\u679c\u4e0d\u540c\uff0c\u5c31\u4f1a\u4ea7\u751f\u9519\u8bef\uff0c\u5e76\u59a8\u788d\u7f51\u7edc\u901a\u8baf\uff0c\u7136\u800c\uff0c\u4e0d\u540c\u7f51\u7edc\u95f4\u53ef\u4ee5\u6709\u4e0d\u540c\u7684\u901a\u8baf\u901f\u5ea6\u3002<\/p>\n\n\n\n<p>&nbsp; &nbsp; 5) \u8fdc\u7a0b\u6570\u636e\u8bf7\u6c42<\/p>\n\n\n\n<p>\u53ef\u4ee5\u901a\u8fc7\u53d1\u9001\u201c\u9065\u63a7\u5e27\u201d\uff0c\u8bf7\u6c42\u5176\u4ed6\u5355\u5143\u53d1\u9001\u6570\u636e\u3002<\/p>\n\n\n\n<p>&nbsp; &nbsp; 6) \u9519\u8bef\u68c0\u6d4b\u3001\u9519\u8bef\u901a\u77e5\u3001\u9519\u8bef\u6062\u590d\u529f\u80fd<\/p>\n\n\n\n<p>\u6240\u6709\u5355\u5143\u5747\u53ef\u4ee5\u68c0\u6d4b\u51fa\u9519\u8bef\uff08\u9519\u8bef\u68c0\u6d4b\u529f\u80fd\uff09\u3002<\/p>\n\n\n\n<p>\u68c0\u6d4b\u5230\u9519\u8bef\u7684\u5355\u5143\u7acb\u523b\u540c\u65f6\u901a\u77e5\u5176\u5b83\u6240\u6709\u7684\u5355\u5143\uff08\u9519\u8bef\u901a\u77e5\u529f\u80fd\uff09\u3002\u5982\u679c\u4e00\u4e2a\u5355\u5143\u53d1\u9001\u4fe1\u606f\u65f6\u68c0\u6d4b\u5230\u4e00\u4e2a\u9519\u8bef\uff0c\u5b83\u4f1a\u5f3a\u5236\u7ec8\u6b62\u4fe1\u606f\u4f20\u8f93\uff0c\u5e76\u901a\u77e5\u5176\u5b83\u6240\u6709\u8bbe\u5907\u53d1\u751f\u4e86\u9519\u8bef\uff0c\u7136\u540e\u5b83\u4f1a\u91cd\u4f20\u76f4\u5230\u4fe1\u606f\u6b63\u5e38\u4f20\u8f93\u51fa\u53bb\uff08\u9519\u8bef\u6062\u590d\u529f\u80fd\uff09\u3002<\/p>\n\n\n\n<p>&nbsp; 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