{"id":355,"date":"2022-08-19T14:04:00","date_gmt":"2022-08-19T06:04:00","guid":{"rendered":"https:\/\/xsir.work\/?p=355"},"modified":"2025-06-19T14:14:50","modified_gmt":"2025-06-19T06:14:50","slug":"%e6%95%b0%e6%8d%ae%e5%ba%93%e8%ae%be%e8%ae%a1","status":"publish","type":"post","link":"https:\/\/xsir.work\/index.php\/2022\/08\/19\/%e6%95%b0%e6%8d%ae%e5%ba%93%e8%ae%be%e8%ae%a1\/","title":{"rendered":"\u6570\u636e\u5e93\u8bbe\u8ba1"},"content":{"rendered":"\n

\u4e00\u3001\u7cfb\u7edf\u67b6\u6784\u8bbe\u8ba1<\/strong><\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u4f20\u611f\u5668\u4e3aadxl355\uff0c\u9700\u8981\u5c06\u4f20\u611f\u5668\u91c7\u96c6\u5230\u7684\u6570\u636e\u5b9a\u65f6\u5907\u4efd\u81f3\u4e91\u7aef\u6570\u636e\u5e93\u3002<\/p>\n\n\n\n

\u4e8c\u3001\u5177\u4f53\u5b9e\u73b0\u6b65\u9aa4<\/strong><\/p>\n\n\n\n

1. \u672c\u5730\u6570\u636e\u91c7\u96c6\u4e0e\u7f13\u5b58<\/strong><\/h4>\n\n\n\n

\u5de5\u5177\u9009\u62e9\uff1aPython + SQLite (\u8f7b\u91cf\u7ea7\u6570\u636e\u5e93)<\/strong><\/p>\n\n\n\n

# sensor_data_collector.py\nimport sqlite3\nimport time\nfrom your_sensor_library import read_sensor  # \u66ff\u6362\u4e3a\u5b9e\u9645\u4f20\u611f\u5668\u5e93\n\n# \u521b\u5efa\u672c\u5730\u7f13\u5b58\u6570\u636e\u5e93\nconn = sqlite3.connect('\/path\/to\/sensor_cache.db')\nc = conn.cursor()\nc.execute('''CREATE TABLE IF NOT EXISTS sensor_data\n             (id INTEGER PRIMARY KEY AUTOINCREMENT, \n              device_id TEXT, \n              value REAL, \n              timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP)''')\n\nwhile True:\n    # \u8bfb\u53d6\u4f20\u611f\u5668\u6570\u636e\n    sensor_value = read_sensor()  \n    device_id = \"SENSOR-001\"\n    \n    # \u5199\u5165SQLite\n    c.execute(\"INSERT INTO sensor_data (device_id, value) VALUES (?, ?)\", \n              (device_id, sensor_value))\n    conn.commit()\n    \n    time.sleep(5)  # \u91c7\u96c6\u95f4\u9694<\/code><\/pre>\n\n\n\n
2. \u6570\u636e\u4f20\u8f93\u534f\u8bae\u8bbe\u8ba1<\/strong><\/h4>\n\n\n\n
\u63a8\u8350\u65b9\u6848\uff1aMQTT\u534f\u8bae (\u7269\u8054\u7f51\u4e13\u7528)<\/strong><\/p>\n\n\n\n
\u63a8\u8350\u65b9\u6848\uff1aMQTT\u534f\u8bae (\u7269\u8054\u7f51\u4e13\u7528)<\/strong><\/p>\n\n\n\n
\u7ec4\u4ef6<\/th>\u8bf4\u660e<\/th><\/tr><\/thead>
Broker<\/strong><\/td>EMQX\/HiveMQ (\u4e91\u7aef\u90e8\u7f72)<\/td><\/tr>
Topic<\/strong><\/td>sensor\/{device_id}\/data<\/code><\/td><\/tr>
QoS<\/strong><\/td>1 (\u81f3\u5c11\u4ea4\u4ed8\u4e00\u6b21)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u5907\u9009\u65b9\u6848\uff1aREST API (\u7b80\u5355\u573a\u666f)<\/strong><\/p>\n\n\n\n
import requests\nimport json\n\nAPI_URL = \"https:\/\/your-domain.com\/api\/sensor-data\"\nAPI_KEY = \"your_secret_key\"\n\ndef send_to_cloud(data):\n    headers = {\"Authorization\": f\"Bearer {API_KEY}\", \"Content-Type\": \"application\/json\"}\n    response = requests.post(API_URL, data=json.dumps(data), headers=headers)\n    return response.status_code == 200<\/code><\/pre>\n\n\n\n
3. \u4e91\u7aefMySQL\u6570\u636e\u63a5\u6536<\/strong><\/h4>\n\n\n\n
\u6b65\u9aa41\uff1a\u521b\u5efa\u5b89\u5168\u8bbf\u95ee\u51ed\u8bc1<\/strong><\/p>\n\n\n\n
-- \u5728\u4e91\u7aefMySQL\u6267\u884c\nCREATE USER 'sensor_ingest'@'%' IDENTIFIED BY 'StrongPassword123!';\nGRANT INSERT ON iot_db.sensor_data TO 'sensor_ingest'@'%';<\/code><\/pre>\n\n\n\n
\u6b65\u9aa42\uff1a\u8bbe\u8ba1\u4f18\u5316\u540e\u7684\u6570\u636e\u8868<\/strong><\/p>\n\n\n\n
CREATE TABLE sensor_data (\n    id BIGINT AUTO_INCREMENT PRIMARY KEY,\n    device_id VARCHAR(32) NOT NULL,\n    value DECIMAL(10,2) NOT NULL,\n    received_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,\n    origin_time TIMESTAMP NULL  -- \u53ef\u9009\uff1a\u8bbe\u5907\u7aef\u539f\u59cb\u65f6\u95f4\n) ENGINE=InnoDB PARTITION BY RANGE (MONTH(received_at)) (\n    PARTITION p0 VALUES LESS THAN (2),\n    PARTITION p1 VALUES LESS THAN (3),\n    ...  -- \u6309\u6708\u4efd\u5206\u533a\u63d0\u5347\u67e5\u8be2\u6027\u80fd\n);<\/code><\/pre>\n\n\n\n
4. \u5b9a\u65f6\u5907\u4efd\u4efb\u52a1\u5b9e\u73b0<\/strong><\/h4>\n\n\n\n
\u65b9\u6848A\uff1a\u4f7f\u7528Linux Cron\u5b9a\u65f6\u4f20\u8f93<\/strong><\/p>\n\n\n\n
# \u6bcf5\u5206\u949f\u6267\u884c\u4e00\u6b21\u4f20\u8f93\u811a\u672c\n*\/5 * * * * \/usr\/bin\/python3 \/path\/to\/data_sync.py<\/code><\/pre>\n\n\n\n
\u65b9\u6848B\uff1aPython\u5b9a\u65f6\u4efb\u52a1\u6846\u67b6 (APScheduler)<\/strong><\/p>\n\n\n\n
# data_sync.py\nfrom apscheduler.schedulers.blocking import BlockingScheduler\nimport sqlite3\nimport pymysql\n\ndef sync_data():\n    # 1. \u4eceSQLite\u8bfb\u53d6\u672a\u540c\u6b65\u6570\u636e\n    local_db = sqlite3.connect('\/path\/to\/sensor_cache.db')\n    unsynced = local_db.execute(\"SELECT * FROM sensor_data WHERE synced=0\").fetchall()\n    \n    # 2. \u6279\u91cf\u63d2\u5165MySQL (\u63d0\u5347\u6027\u80fd)\n    cloud_db = pymysql.connect(host=\"mysql.yourcloud.com\", user=\"sensor_ingest\", \n                              password=\"StrongPassword123!\", database=\"iot_db\")\n    with cloud_db.cursor() as cursor:\n        sql = \"INSERT INTO sensor_data (device_id, value, origin_time) VALUES (%s, %s, %s)\"\n        cursor.executemany(sql, [(row[1], row[2], row[3]) for row in unsynced])\n    \n    # 3. \u6807\u8bb0\u5df2\u540c\u6b65\n    ids = [row[0] for row in unsynced]\n    local_db.execute(f\"UPDATE sensor_data SET synced=1 WHERE id IN ({','.join(['?']*len(ids))})\", ids)\n    local_db.commit()\n    \n    # 4. \u6e05\u7406\u65e7\u6570\u636e (\u53ef\u9009)\n    local_db.execute(\"DELETE FROM sensor_data WHERE synced=1 AND timestamp < DATETIME('now','-7 days')\")\n\nif __name__ == \"__main__\":\n    scheduler = BlockingScheduler()\n    scheduler.add_job(sync_data, 'interval', minutes=5)  # 5\u5206\u949f\u540c\u6b65\u4e00\u6b21\n    scheduler.start()<\/code><\/pre>\n\n\n\n
\u4e09\u3001\u5173\u952e\u4f18\u5316\u4e0e\u5b89\u5168\u63aa\u65bd<\/strong><\/p>\n\n\n\n
    \n
  1. \u6570\u636e\u4f20\u8f93\u5b89\u5168<\/strong>\n
      \n
    • \u542f\u7528MySQL SSL\u8fde\u63a5 (pymysql<\/code>\u4f7f\u7528ssl={'ca': '\/path\/to\/ca.pem'}<\/code>)<\/li>\n\n\n\n
    • MQTT\u542f\u7528TLS\u52a0\u5bc6 (\u7aef\u53e38883)<\/li>\n\n\n\n
    • API\u4f7f\u7528HTTPS + JWT\u8ba4\u8bc1<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n
      \u65ad\u7f51\u5bb9\u9519\u673a\u5236<\/strong><\/p>\n\n\n\n
      try:\n    # \u5c1d\u8bd5\u53d1\u9001\u6570\u636e\nexcept (NetworkError, Timeout) as e:\n    with open('\/tmp\/backup_queue.dat', 'ab') as f:\n        pickle.dump(data, f)  # \u5e8f\u5217\u5316\u5b58\u50a8<\/code><\/pre>\n\n\n\n
      \u4e91\u7aef\u6027\u80fd\u4f18\u5316<\/strong><\/p>\n\n\n\n
      -- \u521b\u5efa\u65f6\u95f4\u7d22\u5f15\nCREATE INDEX idx_received_at ON sensor_data(received_at);\n\n-- \u542f\u7528MySQL\u6279\u91cf\u63d2\u5165\u4f18\u5316\nSET GLOBAL max_allowed_packet=256*1024*1024;<\/code><\/pre>\n\n\n\n
      \u76d1\u63a7\u544a\u8b66<\/strong><\/p>\n\n\n\n
      # \u76d1\u63a7\u540c\u6b65\u65e5\u5fd7\ntail -f \/var\/log\/sensor_sync.log | grep -E 'ERROR|WARN'\n\n# \u76d1\u63a7MySQL\u5199\u5165\u5ef6\u8fdf\nSHOW STATUS LIKE 'Innodb_rows_inserted';<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
      \u4e00\u3001\u7cfb\u7edf\u67b6\u6784\u8bbe\u8ba1 \u4f20\u611f\u5668\u4e3aadxl355\uff0c\u9700\u8981\u5c06\u4f20\u611f\u5668\u91c7\u96c6\u5230\u7684\u6570\u636e\u5b9a\u65f6\u5907\u4efd\u81f3\u4e91\u7aef\u6570\u636e\u5e93\u3002 \u4e8c\u3001\u5177\u4f53\u5b9e\u73b0\u6b65\u9aa4 1 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-355","post","type-post","status-publish","format-standard","hentry","category-5"],"_links":{"self":[{"href":"https:\/\/xsir.work\/index.php\/wp-json\/wp\/v2\/posts\/355","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xsir.work\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xsir.work\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xsir.work\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xsir.work\/index.php\/wp-json\/wp\/v2\/comments?post=355"}],"version-history":[{"count":1,"href":"https:\/\/xsir.work\/index.php\/wp-json\/wp\/v2\/posts\/355\/revisions"}],"predecessor-version":[{"id":357,"href":"https:\/\/xsir.work\/index.php\/wp-json\/wp\/v2\/posts\/355\/revisions\/357"}],"wp:attachment":[{"href":"https:\/\/xsir.work\/index.php\/wp-json\/wp\/v2\/media?parent=355"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xsir.work\/index.php\/wp-json\/wp\/v2\/categories?post=355"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xsir.work\/index.php\/wp-json\/wp\/v2\/tags?post=355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}