{"id":98851,"date":"2024-11-05T17:10:42","date_gmt":"2024-11-05T09:10:42","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=98851"},"modified":"2024-11-05T17:10:47","modified_gmt":"2024-11-05T09:10:47","slug":"mwxmkssmysmy","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/98851.html","title":{"rendered":"915m\u65e0\u7ebf\u6a21\u5757\u662f\u4ec0\u4e48\uff1f\u6709\u4ec0\u4e48\u7528\uff1f"},"content":{"rendered":"\n<p>\u3000\u3000<strong>915MHz\u65e0\u7ebf\u6a21\u5757<\/strong>\u662f\u4e00\u79cd\u5de5\u4f5c\u5728915MHz\u9891\u6bb5\u7684\u65e0\u7ebf\u901a\u4fe1\u6a21\u5757\uff0c\u901a\u5e38\u7528\u4e8e\u7269\u8054\u7f51(IoT)\u8bbe\u5907\u548c\u4f20\u611f\u5668\u7f51\u7edc\u4e2d\u3002\u8fd9\u79cd\u6a21\u5757\u5177\u6709\u4f4e\u529f\u8017\u3001\u8fdc\u8ddd\u79bb\u4f20\u8f93\u548c\u6297\u5e72\u6270\u80fd\u529b\u5f3a\u7684\u7279\u70b9\uff0c\u9002\u7528\u4e8e\u5404\u79cd\u65e0\u7ebf\u901a\u4fe1\u5e94\u7528\u573a\u666f\u3002<\/p>\n\n\n\n<p>\u3000\u3000915MHz\u9891\u6bb5\u5728\u56fd\u9645\u4e0a\u88ab\u6307\u5b9a\u4e3aISM(\u5de5\u4e1a\u3001\u79d1\u5b66\u548c\u533b\u7597)\u9891\u6bb5\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u53ef\u4ee5\u5728\u5168\u7403\u8303\u56f4\u5185\u4f7f\u7528\u800c\u65e0\u9700\u7279\u522b\u7684\u8bb8\u53ef\u8bc1\u3002\u56e0\u6b64\uff0c915MHz\u65e0\u7ebf\u6a21\u5757\u5728\u5168\u7403\u8303\u56f4\u5185\u5f97\u5230\u4e86\u5e7f\u6cdb\u5e94\u7528\uff0c\u5c24\u5176\u662f\u5728\u6b27\u7f8e\u56fd\u5bb6\u6216\u5730\u533a\u3002<\/p>\n\n\n\n<p>\u3000\u3000915MHz\u65e0\u7ebf\u6a21\u5757\u7684\u5e94\u7528\u975e\u5e38\u5e7f\u6cdb\uff0c\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u7269\u8054\u7f51\u8bbe\u5907<\/strong>\uff1a915MHz\u9891\u6bb5\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7269\u8054\u7f51\u8bbe\u5907\u4e2d\uff0c\u5982\u667a\u80fd\u9501\u3001\u73af\u5883\u76d1\u6d4b\u8bbe\u5907\u548c\u8fdc\u7a0b\u63a7\u5236\u7cfb\u7edf\u7b49\u3002\u8fd9\u4e9b\u8bbe\u5907\u901a\u5e38\u9700\u8981\u4f4e\u529f\u8017\u548c\u957f\u8ddd\u79bb\u901a\u4fe1\u80fd\u529b\uff0c\u800c915MHz\u9891\u6bb5\u6b63\u597d\u6ee1\u8db3\u8fd9\u4e9b\u9700\u6c42\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u533b\u7597\u53ef\u7a7f\u6234\u8bbe\u5907<\/strong>\uff1a915MHz\u9891\u6bb5\u4e5f\u88ab\u7528\u4e8e\u533b\u7597\u53ef\u7a7f\u6234\u8bbe\u5907\uff0c\u5982\u76d1\u6d4b\u5fc3\u7387\u548c\u52a8\u8109\u8840\u6c27\u9971\u548c\u5ea6(SpO2)\u7684\u4f20\u611f\u5668\u3002\u8fd9\u4e9b\u8bbe\u5907\u9700\u8981\u9ad8\u6548\u80fd\u7684\u65e0\u7ebf\u901a\u4fe1\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u5b9e\u65f6\u4f20\u8f93\u548c\u51c6\u786e\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u519c\u4e1a\u5e94\u7528<\/strong>\uff1a\u5728\u519c\u4e1a\u9886\u57df\uff0c915MHz\u9891\u6bb5\u53ef\u4ee5\u7528\u4e8e\u8fdc\u7a0b\u76d1\u63a7\u548c\u63a7\u5236\u7cfb\u7edf\uff0c\u4f8b\u5982\u704c\u6e89\u7cfb\u7edf\u548c\u4f5c\u7269\u751f\u957f\u76d1\u6d4b\u8bbe\u5907\u3002\u8fd9\u4e9b\u5e94\u7528\u9700\u8981\u7a33\u5b9a\u7684\u65e0\u7ebf\u8fde\u63a5\u6765\u786e\u4fdd\u6570\u636e\u7684\u53ef\u9760\u4f20\u8f93\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5176\u4ed6\u5e94\u7528<\/strong>\uff1a\u6b64\u5916\uff0c915MHz\u65e0\u7ebf\u6a21\u5757\u8fd8\u88ab\u7528\u4e8e\u9065\u63a7\u8bbe\u5907\u3001\u6570\u636e\u4f20\u8f93\u7535\u53f0\u548c\u5176\u4ed6\u9700\u8981\u65e0\u7ebf\u901a\u4fe1\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000\u603b\u4e4b\uff0c915MHz\u65e0\u7ebf\u6a21\u5757\u56e0\u5176\u4f4e\u529f\u8017\u3001\u8fdc\u8ddd\u79bb\u4f20\u8f93\u548c\u6297\u5e72\u6270\u80fd\u529b\u5f3a\u7b49\u7279\u70b9\uff0c\u5728\u7269\u8054\u7f51\u3001\u533b\u7597\u3001\u519c\u4e1a\u7b49\u591a\u4e2a\u9886\u57df\u5c55\u73b0\u4e86\u5de8\u5927\u7684\u5e94\u7528\u6f5c\u529b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 915MHz\u65e0\u7ebf\u6a21\u5757\u7684\u6280\u672f\u89c4\u683c\u548c\u6027\u80fd\u53c2\u6570\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n<p>\u3000\u3000915MHz\u65e0\u7ebf\u6a21\u5757\u7684\u6280\u672f\u89c4\u683c\u548c\u6027\u80fd\u53c2\u6570\u53ef\u4ee5\u4ece\u591a\u4e2a\u6765\u6e90\u4e2d\u83b7\u53d6\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5177\u4f53\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001.&nbsp;<strong>RF4463PRO\u6a21\u5757<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u82af\u7247\uff1aSilicon Lab si4463<\/p>\n\n\n\n<p>\u3000\u3000\u5de5\u4f5c\u9891\u7387\uff1a915MHz<\/p>\n\n\n\n<p>\u3000\u3000\u7075\u654f\u5ea6\uff1a\u9ad8\u8fbe-126dBm<\/p>\n\n\n\n<p>\u3000\u3000\u6700\u5927\u8f93\u51fa\u529f\u7387\uff1a20dBm<\/p>\n\n\n\n<p>\u3000\u3000\u529f\u80fd\uff1a\u5b9a\u65f6\u5524\u9192\uff0c\u5929\u7ebf\u81ea\u52a8\u5339\u914d\uff0c\u9002\u7528\u4e8e\u5de5\u4e1a\u65e0\u7ebf\u63a7\u5236\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002.&nbsp;<strong>DFRobot FireBeetle LoRa\u6a21\u5757<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u82af\u7247\uff1aSX127x LoRa<\/p>\n\n\n\n<p>\u3000\u3000\u5de5\u4f5c\u9891\u7387\uff1a915MHz<\/p>\n\n\n\n<p>\u3000\u3000\u6700\u5927\u4f20\u8f93\u901f\u7387\uff1aFSK\u8c03\u5236\u65b9\u5f0f\u4e0b300Kbps\uff0cLoRaTM\u4e0b37.5Kbps<\/p>\n\n\n\n<p>\u3000\u3000\u8ddd\u79bb\uff1a\u7a7a\u65f7\u53ef\u89c6\u8303\u56f4\u5185\u53ef\u8fbe5KM\uff0c\u57ce\u5e02\u8ddd\u79bb\u5927\u4e8e1KM\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30003.&nbsp;<strong>N515AS\u6a21\u5757<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u82af\u7247\uff1aTI CC1120<\/p>\n\n\n\n<p>\u3000\u3000\u5de5\u4f5c\u9891\u7387\uff1a915MHz<\/p>\n\n\n\n<p>\u3000\u3000\u6700\u5927\u53d1\u5c04\u529f\u7387\uff1a0.2\u74e6(24dBm)<\/p>\n\n\n\n<p>\u3000\u3000\u6676\u632f\u7cbe\u5ea6\uff1a\u9ad8\u7cbe\u5ea6TCXO\u6676\u632f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30004.&nbsp;<strong>AMICCOM A7139\u6a21\u5757<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u5de5\u4f5c\u9891\u7387\uff1a915MHz<\/p>\n\n\n\n<p>\u3000\u3000\u6570\u636e\u901f\u7387\uff1a\u53ef\u7f16\u7a0b\u4ece2 Kbps\u81f3100 Kbps<\/p>\n\n\n\n<p>\u3000\u3000TX\u529f\u7387\u6c34\u5e73\uff1a\u53ef\u7f16\u7a0b\u4ece-34 dBm\u81f315 dBm<\/p>\n\n\n\n<p>\u3000\u3000\u8f93\u5165\u7535\u538b\uff1a1.9V\u81f33.6V<\/p>\n\n\n\n<p>\u3000\u3000\u6700\u5927\u6570\u636e\u901f\u7387\uff1a\u4f7f\u752812.8 MHz\u6676\u4f53\u65f6\u4e3a100 kbps\uff0c\u4f7f\u752816 MHz\u6676\u4f53\u65f6\u4e3a250 kbps<\/p>\n\n\n\n<p>\u3000\u3000\u529f\u7387\u653e\u5927\u5668\uff1a\u9ad8\u6548\u7387\u7c7bE\u529f\u7387\u653e\u5927\u5668(\u6700\u9ad816 dBm)<\/p>\n\n\n\n<p>\u3000\u3000\u63a5\u6536\u7075\u654f\u5ea6\uff1a\u5728100 Kbps\u6570\u636e\u901f\u7387\u4e0b\u4e3a-102 dBm\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30005.&nbsp;<strong>E07-915MS10\u6a21\u5757<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u82af\u7247\uff1aTI CC1101<\/p>\n\n\n\n<p>\u3000\u3000\u5de5\u4f5c\u9891\u7387\uff1a915MHz<\/p>\n\n\n\n<p>\u3000\u3000\u6676\u632f\u7cbe\u5ea6\uff1a\u5de5\u4e1a\u7ea7\u9ad8\u7cbe\u5ea626MHz\u6676\u632f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30006.&nbsp;<strong>LoRa1276-C1\u6a21\u5757<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000\u82af\u7247\uff1aSemtech SX1276<\/p>\n\n\n\n<p>\u3000\u3000\u5de5\u4f5c\u9891\u7387\uff1a915MHz<\/p>\n\n\n\n<p>\u3000\u3000\u8f93\u51fa\u529f\u7387\uff1a100mW<\/p>\n\n\n\n<p>\u3000\u3000\u5e94\u7528\u9886\u57df\uff1a\u65e0\u7ebf\u6284\u8868\uff0c\u8fdc\u7a0b\u5de5\u63a7\u7b49\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 915MHz\u65e0\u7ebf\u6a21\u5757\u5728\u4e0d\u540c\u5e94\u7528\u573a\u666f\u4e0b\u7684\u901a\u4fe1\u8d28\u91cf\u548c\u7a33\u5b9a\u6027?<\/h2>\n\n\n\n<p>\u3000\u3000\u8bc4\u4f30915MHz\u65e0\u7ebf\u6a21\u5757\u5728\u4e0d\u540c\u5e94\u7528\u573a\u666f\u4e0b\u7684\u901a\u4fe1\u8d28\u91cf\u548c\u7a33\u5b9a\u6027\uff0c\u53ef\u4ee5\u4ece\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u8fdb\u884c\u8be6\u7ec6\u5206\u6790\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001. \u6280\u672f\u7279\u70b9\u548c\u6027\u80fd\u6307\u6807<\/h3>\n\n\n\n<p>\u3000\u3000915MHz\u9891\u6bb5\u7684\u65e0\u7ebf\u6a21\u5757\u901a\u5e38\u91c7\u7528LoRa\u8c03\u5236\u6280\u672f\uff0c\u5177\u6709\u8f83\u597d\u7684\u7a7f\u900f\u80fd\u529b\u548c\u8986\u76d6\u8303\u56f4\uff0c\u9002\u7528\u4e8e\u7269\u8054\u7f51\u548c\u519c\u4e1a\u9886\u57df\u3002\u4f8b\u5982\uff0c\u57fa\u4e8eSX1262\u82af\u7247\u7684LoRa\u6a21\u5757\uff0c\u652f\u6301\u5168\u7403\u514d\u8bb8\u53efISM 868\/915MHz\u9891\u6bb5\uff0c\u5177\u5907\u4f4e\u529f\u8017\u3001\u9ad8\u901f\u5ea6\u548c\u8fdc\u8ddd\u79bb\u4f20\u8f93\u7684\u7279\u70b9\u3002\u8fd9\u4e9b\u6a21\u5757\u901a\u5e38\u5177\u6709\u5185\u7f6e\u529f\u7387\u653e\u5927\u5668(PA)\u548c\u4f4e\u566a\u58f0\u653e\u5927\u5668(LNA)\uff0c\u8fdb\u4e00\u6b65\u63d0\u5347\u4e86\u901a\u4fe1\u8ddd\u79bb\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002. \u5e94\u7528\u573a\u666f<\/h3>\n\n\n\n<p>\u3000\u3000915MHz\u65e0\u7ebf\u6a21\u5757\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5bb6\u5ead\u5b89\u9632\u62a5\u8b66\u3001\u667a\u80fd\u5bb6\u5c45\u3001\u5de5\u4e1a\u4f20\u611f\u5668\u3001\u697c\u5b87\u81ea\u52a8\u5316\u3001\u533b\u7597\u4fdd\u5065\u4ea7\u54c1\u3001\u9ad8\u7ea7\u6284\u8868\u67b6\u6784(AMI)\u7b49\u9886\u57df\u3002\u5728\u8fd9\u4e9b\u5e94\u7528\u573a\u666f\u4e2d\uff0c\u6a21\u5757\u9700\u8981\u5177\u5907\u9ad8\u53ef\u9760\u6027\u548c\u4f4e\u529f\u8017\u7279\u6027\u3002\u4f8b\u5982\uff0c\u5728\u5bb6\u5ead\u5b89\u9632\u62a5\u8b66\u7cfb\u7edf\u4e2d\uff0c\u6a21\u5757\u9700\u8981\u5728\u4f4e\u529f\u8017\u72b6\u6001\u4e0b\u4fdd\u6301\u957f\u65f6\u95f4\u8fd0\u884c\uff0c\u5e76\u4e14\u5728\u6076\u52a3\u73af\u5883\u4e0b\u4ecd\u80fd\u4fdd\u6301\u7a33\u5b9a\u7684\u901a\u4fe1\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30003. \u4fe1\u53f7\u8d28\u91cf\u548c\u6297\u5e72\u6270\u80fd\u529b<\/h3>\n\n\n\n<p>\u3000\u3000\u4fe1\u53f7\u8d28\u91cf\u53ef\u4ee5\u901a\u8fc7RSSI(\u63a5\u6536\u4fe1\u53f7\u5f3a\u5ea6\u6307\u793a)\u529f\u80fd\u6765\u8bc4\u4f30\uff0c\u8be5\u529f\u80fd\u53ef\u4ee5\u5b9e\u65f6\u76d1\u6d4b\u4fe1\u53f7\u5f3a\u5ea6\uff0c\u5e2e\u52a9\u6539\u5584\u901a\u4fe1\u7f51\u7edc\u548c\u6d4b\u8ddd\u3002\u6b64\u5916\uff0c\u6a21\u5757\u8fd8\u652f\u6301LBT(\u4fe1\u9053\u76d1\u542c)\u529f\u80fd\uff0c\u5728\u53d1\u9001\u524d\u76d1\u542c\u4fe1\u9053\u73af\u5883\u566a\u58f0\uff0c\u6781\u5927\u5730\u63d0\u9ad8\u4e86\u5728\u6076\u52a3\u73af\u5883\u4e0b\u7684\u901a\u4fe1\u6210\u529f\u7387\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30004. \u6570\u636e\u4f20\u8f93\u901f\u7387\u548c\u529f\u8017<\/h3>\n\n\n\n<p>\u3000\u3000\u4e0d\u540c\u6a21\u5757\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\u548c\u529f\u8017\u4e5f\u4f1a\u5f71\u54cd\u901a\u4fe1\u8d28\u91cf\u548c\u7a33\u5b9a\u6027\u3002\u4f8b\u5982\uff0c\u67d0\u4e9b\u6a21\u5757\u652f\u6301\u4ece2.4kbps\u523062.5kbps\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u5e76\u4e14\u5728\u7406\u60f3\u6761\u4ef6\u4e0b\u901a\u4fe1\u8ddd\u79bb\u53ef\u8fbe5km\u3002\u800c\u53e6\u4e00\u4e9b\u6a21\u5757\u5219\u652f\u6301\u66f4\u9ad8\u7684\u6570\u636e\u4f20\u8f93\u901f\u7387\u548c\u66f4\u8fdc\u7684\u901a\u4fe1\u8ddd\u79bb\uff0c\u59821W\u529f\u7387\u6a21\u5757\u5728\u7406\u60f3\u6761\u4ef6\u4e0b\u901a\u4fe1\u8ddd\u79bb\u53ef\u8fbe12km\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30005. \u73af\u5883\u9002\u5e94\u6027\u548c\u6297\u5e72\u6270\u6027<\/h3>\n\n\n\n<p>\u3000\u3000\u65e0\u7ebf\u901a\u4fe1\u8bbe\u5907\u5728\u590d\u6742\u591a\u53d8\u7684\u5de5\u4f5c\u73af\u5883\u4e2d\u5bb9\u6613\u53d7\u5230\u5404\u79cd\u5916\u754c\u5e72\u6270\uff0c\u56e0\u6b64\u6297\u5e72\u6270\u6027\u662f\u5173\u952e\u6307\u6807\u4e4b\u4e00\u3002\u4f8b\u5982\uff0c\u67d0\u4e9b\u6a21\u5757\u5728\u9ad8\u9891\u3001\u7535\u78c1\u573a\u3001\u7535\u538b\u7b49\u5916\u754c\u5e72\u6270\u6761\u4ef6\u4e0b\u4ecd\u80fd\u4fdd\u6301\u6b63\u5e38\u5de5\u4f5c\u72b6\u6001\uff0c\u8fd9\u8868\u660e\u5176\u5177\u6709\u826f\u597d\u7684\u6297\u5e72\u6270\u6027\u80fd\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30006. \u5b9e\u9a8c\u548c\u6a21\u578b\u9a8c\u8bc1<\/h3>\n\n\n\n<p>\u3000\u3000\u901a\u8fc7\u5b9e\u9a8c\u548c\u6a21\u578b\u6784\u5efa\uff0c\u53ef\u4ee5\u5168\u9762\u8bc4\u4f30\u4e0d\u540c\u73af\u5883\u548c\u53c2\u6570\u4e0b\u65e0\u7ebf\u7f51\u7edc\u7684\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u7814\u7a76\u4e2d\u4f7f\u7528\u4e86CC2420(2.4 GHz\u9891\u6bb5)\u548cCC1000(915 MHz\u9891\u6bb5)\u8bbe\u5907\uff0c\u5e76\u5b9a\u4e49\u4e86\u5173\u952e\u6027\u80fd\u6307\u6807(KPI)\u6765\u8bc4\u4f30\u7f51\u7edc\u5728\u4e0d\u540c\u6761\u4ef6\u4e0b\u7684\u8868\u73b0\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5e2e\u52a9\u4f18\u5316\u7f51\u7edc\u8bbe\u8ba1\u548c\u63d0\u9ad8\u901a\u4fe1\u8d28\u91cf\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u3000\u7ed3\u8bba<\/h3>\n\n\n\n<p>\u3000\u3000\u7efc\u5408\u4ee5\u4e0a\u5206\u6790\uff0c\u8bc4\u4f30915MHz\u65e0\u7ebf\u6a21\u5757\u5728\u4e0d\u540c\u5e94\u7528\u573a\u666f\u4e0b\u7684\u901a\u4fe1\u8d28\u91cf\u548c\u7a33\u5b9a\u6027\u9700\u8981\u8003\u8651\u5176\u6280\u672f\u7279\u70b9\u3001\u5e94\u7528\u573a\u666f\u3001\u4fe1\u53f7\u8d28\u91cf\u3001\u6570\u636e\u4f20\u8f93\u901f\u7387\u3001\u529f\u8017\u3001\u73af\u5883\u9002\u5e94\u6027\u548c\u6297\u5e72\u6270\u6027\u7b49\u591a\u4e2a\u65b9\u9762\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 915MHz\u65e0\u7ebf\u6a21\u5757\u4e0e\u5176\u4ed6\u9891\u6bb5(\u59822.4GHz\u62165GHz)\u65e0\u7ebf\u6a21\u5757\u7684\u6bd4\u8f83\u4f18\u52bf\u5728\u54ea\u91cc?<\/h2>\n\n\n\n<p>\u3000\u3000915MHz\u65e0\u7ebf\u6a21\u5757\u76f8\u8f83\u4e8e2.4GHz\u62165GHz\u9891\u6bb5\u7684\u65e0\u7ebf\u6a21\u5757\u5177\u6709\u4ee5\u4e0b\u4f18\u52bf\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u8def\u5f84\u635f\u8017\u8f83\u4f4e<\/strong>\uff1a\u6839\u636e\uff0c915MHz\u9891\u6bb5\u7684\u81ea\u7531\u7a7a\u95f4\u8def\u5f84\u635f\u8017(FSPL)\u6bd42.45GHz\u9891\u6bb5\u4f4e8.6dB\u3002\u8fd9\u610f\u5473\u7740\u5728\u76f8\u540c\u7684\u53d1\u5c04\u529f\u7387\u4e0b\uff0c915MHz\u65e0\u7ebf\u6a21\u5757\u80fd\u591f\u5b9e\u73b0\u66f4\u8fdc\u7684\u901a\u4fe1\u8ddd\u79bb\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u6297\u5e72\u6270\u80fd\u529b\u66f4\u5f3a<\/strong>\uff1a\u6307\u51fa\uff0c\u867d\u71362.4GHz\u9891\u6bb5\u5728\u8870\u51cf\u548c\u6297\u5e72\u6270\u65b9\u9762\u8868\u73b0\u66f4\u597d\uff0c\u4f46915MHz\u9891\u6bb5\u7684\u8def\u5f84\u635f\u8017\u4f4e\u4e8e2.4GHz\u9891\u6bb5\uff0c\u8fd9\u8868\u660e\u5728\u7279\u5b9a\u6761\u4ef6\u4e0b\uff0c915MHz\u65e0\u7ebf\u6a21\u5757\u53ef\u80fd\u5177\u6709\u66f4\u597d\u7684\u6297\u5e72\u6270\u6027\u80fd\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u9002\u7528\u4e8e\u7269\u8054\u7f51\u8bbe\u5907<\/strong>\uff1a\u5f3a\u8c03\u4e86915MHz\u9891\u6bb5\u5728\u7269\u8054\u7f51\u8bbe\u5907\uff0c\u5c24\u5176\u662f\u53ef\u7a7f\u6234\u8bbe\u5907\u4e2d\u7684\u6f5c\u529b\u3002\u7531\u4e8e\u5176\u8f83\u4f4e\u7684\u8def\u5f84\u635f\u8017\u548c\u8f83\u9ad8\u7684\u4fe1\u9053\u7a33\u5b9a\u6027\uff0c915MHz\u9891\u6bb5\u88ab\u8ba4\u4e3a\u662f\u672a\u6765\u7269\u8054\u7f51\u8bbe\u5907\u7684\u7406\u60f3\u9009\u62e9\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u957f\u8ddd\u79bb\u901a\u4fe1\u80fd\u529b<\/strong>\uff1a\u63d0\u5230\uff0c915MHz\u65e0\u7ebf\u6a21\u5757\u652f\u6301\u957f\u8ddd\u79bb\u901a\u4fe1\u6a21\u5f0f\uff0c\u4e00\u4e2a\u4e3b\u673a(\u534f\u8c03\u5668)\u53ef\u4ee5\u652f\u6301\u591a\u8fbe200\u4e2a\u8282\u70b9\u4e0e\u5176\u901a\u8baf\uff0c\u9002\u7528\u4e8e\u591a\u79cd\u65e0\u7ebf\u901a\u8baf\u7ec4\u7f51\u573a\u666f\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u4f4e\u529f\u8017\u7279\u6027<\/strong>\uff1a\u4e2d\u63d0\u5230\u7684LoRa\u6a21\u5757\u5728915MHz\u9891\u6bb5\u4e0b\u5177\u6709\u8d85\u4f4e\u7684\u63a5\u6536\u529f\u8017\u548c\u5f3a\u5927\u7684\u6297\u5e72\u6270\u80fd\u529b\uff0c\u8fd9\u4f7f\u5f97915MHz\u65e0\u7ebf\u6a21\u5757\u5728\u9700\u8981\u4f4e\u529f\u8017\u548c\u957f\u8ddd\u79bb\u901a\u4fe1\u7684\u5e94\u7528\u4e2d\u5177\u6709\u4f18\u52bf\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001 \u5728\u7269\u8054\u7f51\u8bbe\u5907\u4e2d\uff0c915MHz\u65e0\u7ebf\u6a21\u5757\u7684\u5b89\u5168\u6027\u5982\u4f55\u4fdd\u8bc1?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728\u7269\u8054\u7f51\u8bbe\u5907\u4e2d\uff0c915MHz\u65e0\u7ebf\u6a21\u5757\u7684\u5b89\u5168\u6027\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u63aa\u65bd\u6765\u4fdd\u8bc1\u3002\u9996\u5148\uff0c\u52a0\u5bc6\u6280\u672f\u662f\u5173\u952e\u7684\u5b89\u5168\u624b\u6bb5\u4e4b\u4e00\u3002\u4f8b\u5982\uff0cLoRaCC68-915MHz\u65e0\u7ebf\u6a21\u5757\u91c7\u7528\u4e86Semtech\u516c\u53f8\u7684LLCC68\u82af\u7247\uff0c\u5e76\u7ed3\u5408AES128\u52a0\u5bc6\u6280\u672f\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u5b89\u5168\u6027\u3002\u6b64\u5916\uff0c\u7269\u8054\u7f51\u8bbe\u5907\u5e94\u5177\u5907\u5b89\u5168\u8bbe\u8ba1\u548c\u9632\u62a4\u673a\u5236\uff0c\u5305\u62ec\u786c\u4ef6\u548c\u8f6f\u4ef6\u5c42\u9762\u7684\u5b89\u5168\u63aa\u65bd\uff0c\u5982\u52a0\u5bc6\u82af\u7247\u3001\u5b89\u5168\u5f15\u5bfc\u548c\u8bbf\u95ee\u63a7\u5236\u7b49\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u9664\u4e86\u52a0\u5bc6\u4e4b\u5916\uff0c\u53ca\u65f6\u66f4\u65b0\u8bbe\u5907\u7684\u56fa\u4ef6\u548c\u8f6f\u4ef6\u4e5f\u662f\u4fdd\u969c\u5b89\u5168\u6027\u7684\u91cd\u8981\u7b56\u7565\u3002\u901a\u8fc7\u4fee\u8865\u5df2\u77e5\u7684\u6f0f\u6d1e\u548c\u5b89\u5168\u95ee\u9898\uff0c\u53ef\u4ee5\u9632\u6b62\u9ed1\u5ba2\u5229\u7528\u8fd9\u4e9b\u6f0f\u6d1e\u8fdb\u884c\u653b\u51fb\u3002\u540c\u65f6\uff0c\u7269\u8054\u7f51\u8bbe\u5907\u9700\u8981\u5177\u5907\u53ef\u4fe1\u7684\u5b89\u5168\u5355\u5143(Secure Element)\uff0c\u8fd9\u4e2a\u5b89\u5168\u5355\u5143\u5305\u62ec\u786c\u4ef6\u90e8\u5206\u548c\u8f6f\u4ef6\u90e8\u5206\uff0c\u5f62\u6210\u8bbe\u5907\u4fa7\u7684\u5b89\u5168\u57fa\uff0c\u4ee5\u63d0\u4f9b\u57fa\u672c\u7684\u5b89\u5168\u8fd0\u884c\u73af\u5883\u3001\u5bc6\u7801\u7b97\u6cd5\u548c\u5b89\u5168\u5b58\u50a8\u7b49\u529f\u80fd\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u53e6\u5916\uff0c\u7269\u8054\u7f51\u8bbe\u5907\u7684\u5b89\u5168\u6027\u8fd8\u4f9d\u8d56\u4e8e\u6574\u4e2a\u7269\u8054\u7f51\u548c\u901a\u4fe1\u57fa\u7840\u8bbe\u65bd\u7684\u5b89\u5168\u6027\u3002\u56e0\u6b64\uff0c\u5728\u89c4\u5212\u7269\u8054\u7f51\u8bbe\u5907\u7684\u5b89\u5168\u6027\u65f6\uff0c\u9664\u4e86\u8003\u8651\u8bbe\u5907\u548c\u7f51\u7edc\u5b89\u5168\u5916\uff0c\u8fd8\u9700\u8981\u786e\u4fdd\u6574\u4e2a\u7269\u8054\u7f51\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u3002\u52a0\u5f3a\u8bbe\u5907\u8ba4\u8bc1\u3001\u6570\u636e\u52a0\u5bc6\u548c\u9690\u79c1\u4fdd\u62a4\u7b49\u63aa\u65bd\u4e5f\u88ab\u5f3a\u8c03\u4e3a\u91cd\u8981\u7684\u9632\u62a4\u7b56\u7565\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e94\u3001 \u9488\u5bf9\u533b\u7597\u53ef\u7a7f\u6234\u8bbe\u5907\uff0c915MHz\u65e0\u7ebf\u6a21\u5757\u7684\u6700\u65b0\u6280\u672f\u8fdb\u5c55\u6709\u54ea\u4e9b?<\/h2>\n\n\n\n<p>\u3000\u3000\u9488\u5bf9\u533b\u7597\u53ef\u7a7f\u6234\u8bbe\u5907\uff0c915MHz\u65e0\u7ebf\u6a21\u5757\u7684\u6700\u65b0\u6280\u672f\u8fdb\u5c55\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u4f4e\u529f\u8017\u8bbe\u8ba1<\/strong>\uff1a\u57fa\u4e8eTI\u516c\u53f8CC1310\u5c04\u9891\u82af\u7247\u7684\u8d85\u4f4e\u529f\u8017915MHz\u9891\u7387\u65e0\u7ebf\u6a21\u5757\uff0c\u5982E70\u7cfb\u5217\uff0c\u5177\u6709\u8f6f\u4ef6FEC\u524d\u5411\u7ea0\u9519\u7b97\u6cd5\uff0c\u80fd\u591f\u6709\u6548\u964d\u4f4e\u529f\u8017\uff0c\u9002\u5408\u957f\u65f6\u95f4\u4f69\u6234\u7684\u533b\u7597\u53ef\u7a7f\u6234\u8bbe\u5907\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u5929\u7ebf\u8bbe\u8ba1\u4f18\u5316<\/strong>\uff1a\u9488\u5bf9\u8155\u90e8\u65e0\u7ebfSpO2\u4f20\u611f\u5668\uff0c\u8bbe\u8ba1\u4e86\u4e00\u79cd\u5c3a\u5bf8\u4e3a44\u00d728\u00d71.6 mm\u00b3\u7684\u5929\u7ebf\uff0c\u80fd\u591f\u5728915MHz ISM\u9891\u6bb5\u4e0b\u5de5\u4f5c\u3002\u8be5\u5929\u7ebf\u5728IXB-063\u5047\u4eba\u67f1\u4e0a\u6d4b\u91cf\u7684-10 dB\u963b\u6297\u5e26\u5bbd\u4e3a55 MHz\uff0c\u5728\u81ea\u7531\u7a7a\u95f4\u4e0a\u4e3a60 MHz\uff0c\u5cf0\u503c\u5b9e\u73b0\u589e\u76ca\u4e3a-6.1 dBi\uff0c\u5728\u81ea\u7531\u7a7a\u95f4\u4e0a\u4e3a-2.37 dBi\u3002\u8fd9\u79cd\u8bbe\u8ba1\u5728\u76f8\u540c\u7684\u8bfb\u53d6\u5668\u589e\u76ca\u548c\u63a5\u6536\u529f\u7387\u5047\u8bbe\u4e0b\u63d0\u4f9b\u4e86\u4e0e2.45 GHz\u8155\u90e8\u5929\u7ebf\u76f8\u4f3c\u7684\u6027\u80fd\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u534f\u8bae\u9009\u62e9\u4e0e\u529f\u8017\u5206\u6790<\/strong>\uff1a\u5728\u8bc4\u4f30\u5404\u79cd\u65e0\u7ebf\u534f\u8bae\u65f6\uff0c\u53d1\u73b0\u5f53\u91c7\u6837\u7387\u964d\u4f4e\u5230\u6bcf\u5206\u949f1\u6b21\u65f6\uff0cZigbee\u3001BLE\u548cZ-Star RFIC\u7684\u7535\u6d41\u6d88\u8017\u76f8\u4f3c\u3002\u5bf9\u4e8e\u6bcf\u5c0f\u65f61\u6b21\u6216\u66f4\u9ad8\u7684\u91c7\u6837\u7387\uff0cSub-GHz 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