\n| \u6570\u636e\u5efa\u6a21\u80fd\u529b<\/td>\n | \u6241\u5e73\u5bc4\u5b58\u5668\u7ed3\u6784<\/td>\n | \u652f\u6301\u590d\u6742\u4fe1\u606f\u6a21\u578b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u901a\u8fc7 C# \u4e0e OPC UA \u7684\u6df1\u5ea6\u96c6\u6210，\u5f00\u53d1\u8005\u80fd\u591f\u6784\u5efa\u9ad8\u53ef\u7528\u3001\u53ef\u6269\u5c55\u7684\u5de5\u4e1a\u7269\u8054\u7f51\u5e94\u7528，\u4e3a\u667a\u80fd\u5de5\u5382\u63d0\u4f9b\u575a\u5b9e\u7684\u6570\u636e\u901a\u4fe1\u57fa\u7840\u3002<\/p>\n \u7b2c\u4e8c\u7ae0：OPC UA \u57fa\u7840\u67b6\u6784\u4e0e C# \u5b9e\u73b0\u539f\u7406<\/h3>\n2.1 OPC UA \u901a\u4fe1\u6a21\u578b\u4e0e\u4fe1\u606f\u5efa\u6a21\u7406\u8bba<\/h4>\nOPC UA（Open Platform Communications Unified Architecture）\u91c7\u7528\u9762\u5411\u670d\u52a1\u7684\u67b6\u6784（SOA），\u6784\u5efa\u4e86\u8de8\u5e73\u53f0\u3001\u5b89\u5168\u4e14\u53ef\u6269\u5c55\u7684\u5de5\u4e1a\u901a\u4fe1\u6a21\u578b\u3002\u5176\u6838\u5fc3\u5728\u4e8e\u901a\u8fc7\u6807\u51c6\u5316\u7684\u670d\u52a1\u63a5\u53e3\u5b9e\u73b0\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u6570\u636e\u4ea4\u6362\u3002<\/p>\n \u901a\u4fe1\u6a21\u578b\u7ed3\u6784<\/h5>\nOPC UA \u57fa\u4e8e\u53d1\u5e03\/\u8ba2\u9605\u4e0e\u8bf7\u6c42\/\u54cd\u5e94\u53cc\u6a21\u5f0f\u8fd0\u884c，\u652f\u6301\u540c\u6b65\u4e0e\u5f02\u6b65\u901a\u4fe1\u3002\u901a\u4fe1\u5b9e\u4f53\u95f4\u901a\u8fc7\u4f1a\u8bdd（Session）\u5efa\u7acb\u5b89\u5168\u4e0a\u4e0b\u6587，\u5e76\u5229\u7528\u8282\u70b9（Node）\u7ec4\u7ec7\u4fe1\u606f\u3002<\/p>\n \u4fe1\u606f\u5efa\u6a21\u673a\u5236<\/h5>\n\u6bcf\u4e2a\u8bbe\u5907\u6216\u53d8\u91cf\u88ab\u5efa\u6a21\u4e3a\u5730\u5740\u7a7a\u95f4\u4e2d\u7684\u8282\u70b9，\u8282\u70b9\u95f4\u901a\u8fc7\u5f15\u7528（Reference）\u8fde\u63a5，\u5f62\u6210\u5c42\u6b21\u5316\u7ed3\u6784\u3002\u4f8b\u5982：<\/p>\n <Variable NodeId="ns=1;s=Temperature" BrowseName="Temperature">
\n <References>
\n <Reference ReferenceType="HasTypeDefinition">DataItemType<\/Reference>
\n <Reference ReferenceType="Organizes" IsInverse="true">Folder:SensorData<\/Reference>
\n <\/References>
\n<\/Variable><\/p>\n \u4e0a\u8ff0XML\u7247\u6bb5\u5b9a\u4e49\u4e86\u4e00\u4e2a\u6e29\u5ea6\u53d8\u91cf\u8282\u70b9，\u5176\u7c7b\u578b\u4e3aDataItemType，\u5e76\u96b6\u5c5e\u4e8eSensorData\u6587\u4ef6\u5939\u3002NodeId\u552f\u4e00\u6807\u8bc6\u8282\u70b9，BrowseName\u7528\u4e8e\u6d4f\u89c8，\u5f15\u7528\u5173\u7cfb\u6784\u5efa\u8bed\u4e49\u62d3\u6251\u3002<\/p>\n \n\n\u8282\u70b9\u7c7b\u522b\u8bf4\u660e<\/tr>\n \n| Object<\/td>\n | \u8868\u793a\u5b9e\u4f53\u8bbe\u5907\u6216\u903b\u8f91\u5bf9\u8c61<\/td>\n<\/tr>\n | \n| Variable<\/td>\n | \u5b58\u50a8\u53ef\u8bfb\u5199\u7684\u6570\u636e\u503c<\/td>\n<\/tr>\n | \n| Method<\/td>\n | \u5b9a\u4e49\u53ef\u6267\u884c\u7684\u64cd\u4f5c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n2.2 \u4f7f\u7528 C# \u6784\u5efa OPC UA \u670d\u52a1\u5668\u7684\u57fa\u672c\u7ed3\u6784<\/h4>\n\u6784\u5efa\u4e00\u4e2aOPC UA\u670d\u52a1\u5668\u7684\u6838\u5fc3\u662f\u5b9a\u4e49\u5730\u5740\u7a7a\u95f4\u3001\u8282\u70b9\u548c\u6570\u636e\u63d0\u4f9b\u673a\u5236\u3002\u5728C#\u4e2d，\u901a\u5e38\u4f7f\u7528\u5f00\u6e90\u5e93\u5982`OPC-UA-Stack`\u6216`QuickOPC`\u6765\u5b9e\u73b0\u3002<\/p>\n \u9879\u76ee\u57fa\u7840\u7ed3\u6784<\/h5>\n\u9996\u5148\u521b\u5efa\u63a7\u5236\u53f0\u5e94\u7528，\u5e76\u5b89\u88c5`Opc.Ua.Server` NuGet\u5305\u3002\u670d\u52a1\u5668\u9700\u7ee7\u627f`CustomNodeManager`\u4ee5\u7ba1\u7406\u81ea\u5b9a\u4e49\u8282\u70b9\u3002<\/p>\n public class SimpleUaServer : CustomNodeManager2
\n{
\n public SimpleUaServer(IServerInternal server, ApplicationConfiguration config)
\n : base(server, config, "http:\/\/yourcompany.com\/namespace")
\n {
\n \/\/ \u6ce8\u518c\u547d\u540d\u7a7a\u95f4
\n }
\n}
\n\u8be5\u7c7b\u8d1f\u8d23\u521d\u59cb\u5316\u5730\u5740\u7a7a\u95f4，base\u8c03\u7528\u6ce8\u518c\u552f\u4e00\u547d\u540d\u7a7a\u95f4URI，\u907f\u514d\u4e0e\u5176\u4ed6\u670d\u52a1\u5668\u51b2\u7a81\u3002<\/p>\n \u5173\u952e\u7ec4\u4ef6\u5217\u8868<\/h5>\n\n- ApplicationConfiguration：\u52a0\u8f7d\u670d\u52a1\u5668\u914d\u7f6e<\/li>\n
- UaTcpTransportChannel：\u5904\u7406UA TCP\u901a\u4fe1<\/li>\n
- INodeManager：\u7ba1\u7406\u8282\u70b9\u751f\u547d\u5468\u671f<\/li>\n<\/ul>\n
\u901a\u8fc7\u7ec4\u5408\u8fd9\u4e9b\u7ec4\u4ef6，\u53ef\u6784\u5efa\u7a33\u5b9a\u3001\u53ef\u6269\u5c55\u7684OPC UA\u670d\u52a1\u7aef\u67b6\u6784\u3002<\/p>\n 2.3 \u8282\u70b9\u7ba1\u7406\u4e0e\u5730\u5740\u7a7a\u95f4\u8bbe\u8ba1\u5b9e\u8df5<\/h4>\n\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d，\u8282\u70b9\u7684\u52a8\u6001\u7ba1\u7406\u4e0e\u9ad8\u6548\u7684\u5730\u5740\u7a7a\u95f4\u5212\u5206\u662f\u4fdd\u969c\u7cfb\u7edf\u53ef\u6269\u5c55\u6027\u7684\u6838\u5fc3\u3002\u4e3a\u5b9e\u73b0\u8282\u70b9\u7684\u81ea\u52a8\u53d1\u73b0\u4e0e\u5065\u5eb7\u76d1\u6d4b，\u5e38\u91c7\u7528\u5fc3\u8df3\u673a\u5236\u914d\u5408\u79df\u7ea6（Lease）\u7b56\u7565\u3002<\/p>\n \u8282\u70b9\u6ce8\u518c\u4e0e\u53d1\u73b0\u6d41\u7a0b<\/h5>\n\u65b0\u8282\u70b9\u542f\u52a8\u540e\u5411\u6ce8\u518c\u4e2d\u5fc3\u53d1\u9001\u6ce8\u518c\u8bf7\u6c42，\u643a\u5e26\u552f\u4e00\u6807\u8bc6\u4e0eIP\u7aef\u53e3\u4fe1\u606f：
\ntype NodeInfo struct {
\n ID string `json:"id"` \/\/ \u8282\u70b9\u552f\u4e00\u6807\u8bc6
\n Addr string `json:"addr"` \/\/ \u76d1\u542c\u5730\u5740
\n Role string `json:"role"` \/\/ \u8282\u70b9\u89d2\u8272
\n LeaseTTL int64 `json:"lease_ttl"` \/\/ \u79df\u7ea6\u6709\u6548\u671f（\u79d2）
\n}<\/p>\n \u8be5\u7ed3\u6784\u4f53\u7528\u4e8e\u5e8f\u5217\u5316\u8282\u70b9\u5143\u6570\u636e，\u5176\u4e2d LeaseTTL \u51b3\u5b9a\u6ce8\u518c\u4e2d\u5fc3\u5728\u591a\u4e45\u672a\u6536\u5230\u5fc3\u8df3\u540e\u5c06\u5176\u6807\u8bb0\u4e3a\u79bb\u7ebf\u3002<\/p>\n \u5730\u5740\u7a7a\u95f4\u5212\u5206\u7b56\u7565<\/h5>\n\u91c7\u7528\u5206\u6bb5\u54c8\u5e0c\u7a7a\u95f4（\u5982\u4e00\u81f4\u6027\u54c8\u5e0c）\u53ef\u51cf\u5c11\u8282\u70b9\u589e\u51cf\u5e26\u6765\u7684\u6570\u636e\u8fc1\u79fb\u3002\u5e38\u89c1\u914d\u7f6e\u5982\u4e0b：<\/p>\n \n\n\u8282\u70b9ID\u865a\u62df\u8282\u70b9\u6570\u54c8\u5e0c\u533a\u95f4<\/tr>\n \n| node-01<\/td>\n | 100<\/td>\n | [0, 1000)<\/td>\n<\/tr>\n | \n| node-02<\/td>\n | 100<\/td>\n | [1000, 2000)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n2.4 \u5b89\u5168\u7b56\u7565\u914d\u7f6e\u4e0e\u4f1a\u8bdd\u673a\u5236\u5b9e\u73b0<\/h4>\n\u5728\u73b0\u4ee3Web\u5e94\u7528\u4e2d，\u5b89\u5168\u7b56\u7565\u4e0e\u4f1a\u8bdd\u7ba1\u7406\u662f\u4fdd\u969c\u7cfb\u7edf\u7a33\u5b9a\u8fd0\u884c\u7684\u6838\u5fc3\u73af\u8282\u3002\u5408\u7406\u7684\u914d\u7f6e\u80fd\u591f\u6709\u6548\u9632\u5fa1CSRF\u3001XSS\u7b49\u5e38\u89c1\u653b\u51fb\u3002<\/p>\n \u5b89\u5168\u5934\u914d\u7f6e<\/h5>\n\u901a\u8fc7\u8bbe\u7f6eHTTP\u5b89\u5168\u54cd\u5e94\u5934，\u589e\u5f3a\u5ba2\u6237\u7aef\u9632\u62a4\u80fd\u529b：
\n\/\/ \u8bbe\u7f6e\u5b89\u5168\u76f8\u5173\u7684HTTP\u5934
\nr.Use(func(c *gin.Context) {
\n c.Header("X-Content-Type-Options", "nosniff")
\n c.Header("X-Frame-Options", "DENY")
\n c.Header("Strict-Transport-Security", "max-age=31536000")
\n c.Next()
\n})<\/p>\n \u4e0a\u8ff0\u4e2d\u95f4\u4ef6\u4e3a\u6240\u6709\u54cd\u5e94\u6dfb\u52a0\u5173\u952e\u5b89\u5168\u5934，\u9632\u6b62MIME\u55c5\u63a2\u548c\u70b9\u51fb\u52ab\u6301，\u5e76\u5f3a\u5236\u4f7f\u7528HTTPS\u4f20\u8f93\u3002<\/p>\n \u57fa\u4e8eJWT\u7684\u4f1a\u8bdd\u7ba1\u7406<\/h5>\n\u4f7f\u7528JWT\u5b9e\u73b0\u65e0\u72b6\u6001\u4f1a\u8bdd，\u7ed3\u5408Redis\u5b58\u50a8\u4ee4\u724c\u72b6\u6001\u4ee5\u652f\u6301\u4e3b\u52a8\u6ce8\u9500：<\/p>\n \n\n\u5b57\u6bb5\u7528\u9014<\/tr>\n \n| sub<\/td>\n | \u7528\u6237\u552f\u4e00\u6807\u8bc6<\/td>\n<\/tr>\n | \n| exp<\/td>\n | \u8fc7\u671f\u65f6\u95f4（UTC\u65f6\u95f4\u6233）<\/td>\n<\/tr>\n | \n| iat<\/td>\n | \u7b7e\u53d1\u65f6\u95f4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n2.5 \u6570\u636e\u8ba2\u9605\u4e0e\u5b9e\u65f6\u901a\u77e5\u7f16\u7a0b\u6280\u5de7<\/h4>\n\u6570\u636e\u540c\u6b65\u673a\u5236<\/h5>\n\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d，\u6570\u636e\u8ba2\u9605\u662f\u5b9e\u73b0\u5b9e\u65f6\u66f4\u65b0\u7684\u6838\u5fc3\u3002\u901a\u8fc7\u89c2\u5bdf\u8005\u6a21\u5f0f\u6216\u53d1\u5e03-\u8ba2\u9605\u6a21\u578b，\u5ba2\u6237\u7aef\u53ef\u76d1\u542c\u6570\u636e\u53d8\u66f4\u5e76\u5373\u65f6\u54cd\u5e94\u3002<\/p>\n \n- \u4f7f\u7528WebSocket\u7ef4\u6301\u957f\u8fde\u63a5，\u964d\u4f4e\u8f6e\u8be2\u5f00\u9500<\/li>\n
- \u6d88\u606f\u53bb\u91cd\u4e0e\u987a\u5e8f\u4fdd\u969c\u63d0\u5347\u7528\u6237\u4f53\u9a8c<\/li>\n<\/ul>\n
\u4e8b\u4ef6\u9a71\u52a8\u7684\u4ee3\u7801\u5b9e\u73b0<\/h5>\nfunc subscribeData(channel string) {
\n conn, _ := websocket.Dial("ws:\/\/example.com\/subscribe")
\n defer conn.Close()
\n \/\/ \u53d1\u9001\u8ba2\u9605\u8bf7\u6c42
\n json.NewEncoder(conn).Encode(map[string]string{
\n "action": "subscribe",
\n "channel": channel,
\n })
\n \/\/ \u6301\u7eed\u8bfb\u53d6\u63a8\u9001\u6d88\u606f
\n for {
\n var msg map[string]interface{}
\n if err := json.NewDecoder(conn).Decode(&msg); err != nil {
\n break
\n }
\n handleNotification(msg)
\n }
\n}
\n\u4e0a\u8ff0Go\u4ee3\u7801\u5efa\u7acbWebSocket\u8fde\u63a5\u540e\u4e3b\u52a8\u8ba2\u9605\u9891\u9053，\u901a\u8fc7\u6301\u7eed\u76d1\u542c\u5b9e\u73b0\u670d\u52a1\u7aef\u63a8\u9001\u3002\u53c2\u6570channel\u6307\u5b9a\u8ba2\u9605\u4e3b\u9898，handleNotification\u5904\u7406\u63a5\u6536\u5230\u7684\u6570\u636e\u53d8\u66f4\u901a\u77e5\u3002<\/p>\n \u6027\u80fd\u4f18\u5316\u5efa\u8bae<\/h5>\n\n\n\u7b56\u7565\u8bf4\u660e<\/tr>\n \n| \u6279\u91cf\u5408\u5e76<\/td>\n | \u5c06\u9ad8\u9891\u66f4\u65b0\u805a\u5408\u6210\u6279\u6b21\u53d1\u9001<\/td>\n<\/tr>\n | \n| \u5fc3\u8df3\u4fdd\u6d3b<\/td>\n | \u5b9a\u671f\u68c0\u6d4b\u8fde\u63a5\u72b6\u6001\u9632\u6b62\u65ad\u8fde<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u7b2c\u4e09\u7ae0：C# \u4e2d OPC UA \u670d\u52a1\u5668\u6838\u5fc3\u529f\u80fd\u5f00\u53d1<\/h3>\n3.1 \u53d8\u91cf\u8282\u70b9\u7684\u521b\u5efa\u4e0e\u52a8\u6001\u66f4\u65b0\u5b9e\u73b0<\/h4>\n\u5728\u6784\u5efa\u53ef\u89c6\u5316\u7f16\u7a0b\u7cfb\u7edf\u65f6，\u53d8\u91cf\u8282\u70b9\u662f\u6570\u636e\u6d41\u56fe\u4e2d\u7684\u6838\u5fc3\u5355\u5143\u3002\u5176\u521b\u5efa\u8fc7\u7a0b\u9700\u5b9a\u4e49\u552f\u4e00\u6807\u8bc6\u3001\u6570\u636e\u7c7b\u578b\u53ca\u521d\u59cb\u503c\u3002<\/p>\n \u8282\u70b9\u521d\u59cb\u5316\u7ed3\u6784<\/h5>\nconst createVariableNode = (id, type, value) => ({
\n id,
\n type, \/\/ \u5982 'number', 'string'
\n value, \/\/ \u521d\u59cb\u503c
\n subscribers: [] \/\/ \u4f9d\u8d56\u8be5\u53d8\u91cf\u7684\u8282\u70b9\u5217\u8868
\n});<\/p>\n \u4e0a\u8ff0\u4ee3\u7801\u5b9a\u4e49\u4e86\u53d8\u91cf\u8282\u70b9\u7684\u57fa\u672c\u7ed3\u6784，\u5176\u4e2d subscribers \u7528\u4e8e\u540e\u7eed\u52a8\u6001\u66f4\u65b0\u65f6\u901a\u77e5\u4f9d\u8d56\u8282\u70b9\u3002<\/p>\n \u52a8\u6001\u66f4\u65b0\u673a\u5236<\/h5>\n\u5f53\u53d8\u91cf\u503c\u53d1\u751f\u53d8\u5316\u65f6，\u7cfb\u7edf\u904d\u5386\u5176\u8ba2\u9605\u8005\u5217\u8868\u5e76\u89e6\u53d1\u91cd\u8ba1\u7b97：<\/p>\n \n- \u901a\u8fc7\u4e8b\u4ef6\u603b\u7ebf\u53d1\u5e03\u53d8\u66f4\u6d88\u606f<\/li>\n
- \u6bcf\u4e2a\u8ba2\u9605\u8282\u70b9\u63a5\u6536\u901a\u77e5\u5e76\u6267\u884c\u66f4\u65b0\u903b\u8f91<\/li>\n
- \u786e\u4fdd\u6570\u636e\u4e00\u81f4\u6027\u4e0e\u89c6\u56fe\u540c\u6b65<\/li>\n<\/ul>\n
3.2 \u65b9\u6cd5\u8282\u70b9\u7684\u6ce8\u518c\u4e0e\u8fdc\u7a0b\u8c03\u7528\u5904\u7406<\/h4>\n\u5728\u5206\u5e03\u5f0f\u670d\u52a1\u67b6\u6784\u4e2d，\u65b9\u6cd5\u8282\u70b9\u7684\u6ce8\u518c\u662f\u5b9e\u73b0\u8fdc\u7a0b\u8c03\u7528\u7684\u524d\u63d0\u3002\u670d\u52a1\u63d0\u4f9b\u65b9\u9700\u5c06\u53ef\u8c03\u7528\u65b9\u6cd5\u53ca\u5176\u5143\u6570\u636e\u6ce8\u518c\u5230\u4e2d\u5fc3\u5316\u6216\u53bb\u4e2d\u5fc3\u5316\u7684\u6ce8\u518c\u4e2d\u5fc3，\u4ee5\u4fbf\u6d88\u8d39\u8005\u53d1\u73b0\u5e76\u8c03\u7528\u3002<\/p>\n \u6ce8\u518c\u6d41\u7a0b\u89e3\u6790<\/h5>\n\u670d\u52a1\u542f\u52a8\u65f6，\u6846\u67b6\u4f1a\u626b\u63cf\u5e26\u6709\u7279\u5b9a\u6ce8\u89e3\u7684\u65b9\u6cd5，\u5c06\u5176\u5c01\u88c5\u4e3a\u53ef\u8c03\u7528\u8282\u70b9，\u5e76\u5411\u6ce8\u518c\u4e2d\u5fc3\u53d1\u5e03\u3002\u4f8b\u5982：<\/p>\n \/\/ RegisterMethod \u6ce8\u518c\u4e00\u4e2a\u8fdc\u7a0b\u53ef\u8c03\u7528\u65b9\u6cd5
\nfunc (s *Server) RegisterMethod(name string, handler func([]byte) []byte) {
\n s.methods[name] = handler
\n \/\/ \u540c\u6b65\u5230\u6ce8\u518c\u4e2d\u5fc3
\n s.registry.Put("\/methods\/"+name, s.addr)
\n}<\/p>\n \u4e0a\u8ff0\u4ee3\u7801\u5c06\u65b9\u6cd5\u540d\u4e0e\u5904\u7406\u51fd\u6570\u6620\u5c04\u5b58\u50a8，\u5e76\u901a\u8fc7\u6ce8\u518c\u4e2d\u5fc3（\u5982etcd\u6216ZooKeeper）\u8fdb\u884c\u670d\u52a1\u66b4\u9732\u3002\u53c2\u6570\u8bf4\u660e：
\n– name：\u8fdc\u7a0b\u8c03\u7528\u7684\u65b9\u6cd5\u6807\u8bc6；
\n– handler：\u5b9e\u9645\u6267\u884c\u903b\u8f91\u7684\u95ed\u5305\u51fd\u6570；
\n– s.registry.Put：\u89e6\u53d1\u670d\u52a1\u6ce8\u518c\u52a8\u4f5c\u3002<\/p>\n \u8fdc\u7a0b\u8c03\u7528\u5904\u7406\u673a\u5236<\/h5>\n\u5f53\u8bf7\u6c42\u5230\u8fbe\u65f6，\u8c03\u7528\u5904\u7406\u5668\u6839\u636e\u65b9\u6cd5\u540d\u67e5\u627e\u5bf9\u5e94\u51fd\u6570\u5e76\u6267\u884c：<\/p>\n \n- \u89e3\u6790\u8bf7\u6c42\u4e2d\u7684\u65b9\u6cd5\u540d\u4e0e\u53c2\u6570<\/li>\n
- \u4ece\u672c\u5730\u6620\u5c04\u8868\u4e2d\u5b9a\u4f4d handler<\/li>\n
- \u6267\u884c\u8c03\u7528\u5e76\u8fd4\u56de\u5e8f\u5217\u5316\u7ed3\u679c<\/li>\n<\/ul>\n
3.3 \u4e8b\u4ef6\u4e0e\u62a5\u8b66\u7cfb\u7edf\u7684\u96c6\u6210\u65b9\u6848<\/h4>\n\u5728\u73b0\u4ee3\u76d1\u63a7\u4f53\u7cfb\u4e2d，\u4e8b\u4ef6\u4e0e\u62a5\u8b66\u7cfb\u7edf\u7684\u65e0\u7f1d\u96c6\u6210\u662f\u4fdd\u969c\u7cfb\u7edf\u7a33\u5b9a\u6027\u7684\u5173\u952e\u73af\u8282\u3002\u901a\u8fc7\u7edf\u4e00\u7684\u4e8b\u4ef6\u603b\u7ebf\u673a\u5236，\u53ef\u5b9e\u73b0\u591a\u6e90\u6570\u636e\u7684\u6c47\u805a\u4e0e\u5206\u53d1\u3002<\/p>\n \u6570\u636e\u540c\u6b65\u673a\u5236<\/h5>\n\u91c7\u7528\u6d88\u606f\u961f\u5217（\u5982Kafka）\u4f5c\u4e3a\u4e2d\u95f4\u4ef6，\u5c06Zabbix\u3001Prometheus\u7b49\u76d1\u63a7\u5de5\u5177\u7684\u62a5\u8b66\u4e8b\u4ef6\u6807\u51c6\u5316\u540e\u63a8\u9001\u81f3\u62a5\u8b66\u5904\u7406\u670d\u52a1\u3002<\/p>\n - \u76d1\u63a7\u7cfb\u7edf\u89e6\u53d1\u62a5\u8b66\u5e76\u751f\u6210\u4e8b\u4ef6<\/li>\n
- \u4e8b\u4ef6\u7ecf\u7531\u9002\u914d\u5668\u8f6c\u6362\u4e3a\u7edf\u4e00\u683c\u5f0f（\u5982AlarmDTO）<\/li>\n
- \u901a\u8fc7Kafka\u53d1\u5e03\u5230\u201calert-topic\u201d\u4e3b\u9898<\/li>\n
- \u62a5\u8b66\u670d\u52a1\u6d88\u8d39\u6d88\u606f\u5e76\u6267\u884c\u901a\u77e5\u7b56\u7565<\/li>\n
type AlarmDTO struct {
\n ID string `json:"id"`
\n Severity int `json:"severity"` \/\/ 1-\u7d27\u6025, 2-\u91cd\u8981, 3-\u8b66\u544a
\n Timestamp int64 `json:"timestamp"`
\n Details map[string]interface{} `json:"details"`
\n}<\/p>\n \u8be5\u7ed3\u6784\u4f53\u5b9a\u4e49\u4e86\u8de8\u7cfb\u7edf\u4f20\u8f93\u7684\u62a5\u8b66\u6570\u636e\u6a21\u578b，\u5176\u4e2dSeverity\u5b57\u6bb5\u652f\u6301\u5206\u7ea7\u5904\u7406，Timestamp\u786e\u4fdd\u65f6\u5e8f\u4e00\u81f4\u6027，Details\u63d0\u4f9b\u6269\u5c55\u80fd\u529b\u4ee5\u9002\u5e94\u4e0d\u540c\u76d1\u63a7\u6e90\u7684\u5143\u6570\u636e\u9700\u6c42\u3002<\/p>\n \u7b2c\u56db\u7ae0：\u5de5\u4e1a\u573a\u666f\u4e0b\u7684 OPC UA \u9ad8\u7ea7\u5e94\u7528<\/h3>\n4.1 \u591a\u7ebf\u7a0b\u73af\u5883\u4e0b\u6570\u636e\u540c\u6b65\u4e0e\u6027\u80fd\u4f18\u5316<\/h4>\n\u5728\u591a\u7ebf\u7a0b\u7f16\u7a0b\u4e2d，\u591a\u4e2a\u7ebf\u7a0b\u5e76\u53d1\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90\u65f6\u5bb9\u6613\u5f15\u53d1\u6570\u636e\u7ade\u4e89，\u5fc5\u987b\u901a\u8fc7\u540c\u6b65\u673a\u5236\u4fdd\u969c\u4e00\u81f4\u6027\u3002<\/p>\n \u6570\u636e\u540c\u6b65\u673a\u5236<\/h5>\n\u5e38\u7528\u7684\u540c\u6b65\u624b\u6bb5\u5305\u62ec\u4e92\u65a5\u9501\u3001\u8bfb\u5199\u9501\u548c\u539f\u5b50\u64cd\u4f5c\u3002\u4ee5 Go \u8bed\u8a00\u4e3a\u4f8b，\u4f7f\u7528\u4e92\u65a5\u9501\u4fdd\u62a4\u5171\u4eab\u53d8\u91cf：<\/p>\n var mu sync.Mutex
\nvar counter int<\/p>\n func increment() {
\n mu.Lock()
\n defer mu.Unlock()
\n counter++ \/\/ \u5b89\u5168\u5730\u4fee\u6539\u5171\u4eab\u6570\u636e
\n}<\/p>\n \u8be5\u4ee3\u7801\u901a\u8fc7 sync.Mutex \u786e\u4fdd\u540c\u4e00\u65f6\u523b\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u80fd\u8fdb\u5165\u4e34\u754c\u533a，\u907f\u514d\u7ade\u6001\u6761\u4ef6\u3002<\/p>\n \u6027\u80fd\u4f18\u5316\u7b56\u7565<\/h5>\n\u8fc7\u5ea6\u52a0\u9501\u4f1a\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u53ef\u91c7\u7528\u4ee5\u4e0b\u65b9\u5f0f\u4f18\u5316：<\/p>\n \n- \u7f29\u5c0f\u9501\u7684\u7c92\u5ea6，\u4ec5\u4fdd\u62a4\u5173\u952e\u6570\u636e<\/li>\n
- \u4f7f\u7528\u8bfb\u5199\u9501（sync.RWMutex）\u63d0\u5347\u8bfb\u5bc6\u96c6\u573a\u666f\u6027\u80fd<\/li>\n
- \u5229\u7528\u65e0\u9501\u7f16\u7a0b（\u5982\u539f\u5b50\u64cd\u4f5c）\u51cf\u5c11\u963b\u585e<\/li>\n<\/ul>\n
4.2 \u4e0e PLC \u8bbe\u5907\u7684\u6570\u636e\u4ea4\u4e92\u5b9e\u6218<\/h4>\n\u5728\u5de5\u4e1a\u81ea\u52a8\u5316\u7cfb\u7edf\u4e2d，\u4e0ePLC\u8bbe\u5907\u8fdb\u884c\u9ad8\u6548\u7a33\u5b9a\u7684\u6570\u636e\u4ea4\u4e92\u662f\u5b9e\u73b0\u76d1\u63a7\u4e0e\u63a7\u5236\u7684\u6838\u5fc3\u73af\u8282\u3002\u901a\u5e38\u91c7\u7528Modbus TCP\u6216OPC UA\u534f\u8bae\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n Modbus TCP \u6570\u636e\u8bfb\u53d6\u793a\u4f8b<\/h5>\nimport minimalmodbus
\ninstrument = minimalmodbus.Instrument('192.168.1.100', 1) # IP\u5730\u5740\u4e0e\u4ece\u7ad9\u5730\u5740
\ninstrument.serial.baudrate = 9600
\nvalue = instrument.read_register(100, functioncode=3) # \u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668<\/p>\n \u4e0a\u8ff0\u4ee3\u7801\u901a\u8fc7Modbus TCP\u8fde\u63a5IP\u4e3a192.168.1.100\u7684PLC，\u4ece\u7ad9\u5730\u5740\u4e3a1，\u8bfb\u53d6\u5bc4\u5b58\u5668\u5730\u5740100\u7684\u6570\u503c\u3002minimalmodbus\u5e93\u7b80\u5316\u4e86\u534f\u8bae\u5c01\u88c5，functioncode=3\u8868\u793a\u4f7f\u7528\u529f\u80fd\u78013\u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668\u3002<\/p>\n \u5e38\u89c1\u5bc4\u5b58\u5668\u6620\u5c04\u8868<\/h5>\n\n\n\u5bc4\u5b58\u5668\u5730\u5740\u6570\u636e\u7c7b\u578b\u7528\u9014<\/tr>\n \n| 40001<\/td>\n | FLOAT<\/td>\n | \u6e29\u5ea6\u8bbe\u5b9a\u503c<\/td>\n<\/tr>\n | \n| 40002<\/td>\n | INT<\/td>\n | \u8fd0\u884c\u72b6\u6001<\/td>\n<\/tr>\n | \n| 40003<\/td>\n | BIT<\/td>\n | \u542f\u505c\u4fe1\u53f7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n4.3 \u652f\u6301 HTTPS \u548c\u9632\u706b\u661f\u7a7f\u900f\u7684\u90e8\u7f72\u7b56\u7565<\/h4>\n\u5728\u73b0\u4ee3\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d，\u786e\u4fdd\u670d\u52a1\u5b89\u5168\u4e0e\u53ef\u8bbf\u95ee\u6027\u81f3\u5173\u91cd\u8981\u3002\u542f\u7528 HTTPS \u53ef\u52a0\u5bc6\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u901a\u4fe1，\u800c\u9632\u706b\u5899\u7a7f\u900f\u6280\u672f\u5219\u4fdd\u969c\u4e86\u8de8\u7f51\u7edc\u8fb9\u754c\u7684\u8fde\u901a\u6027\u3002<\/p>\n \u914d\u7f6e Nginx \u652f\u6301 HTTPS<\/h5>\n\u4f7f\u7528\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\u5982 Nginx \u662f\u5b9e\u73b0 HTTPS \u7684\u5e38\u89c1\u65b9\u5f0f：<\/p>\n server {
\n listen 443 ssl;
\n server_name api.example.com;<\/p>\n ssl_certificate \/path\/to\/cert.pem;
\n ssl_certificate_key \/path\/to\/privkey.pem;<\/p>\n location \/ {
\n proxy_pass http:\/\/backend_service;
\n proxy_set_header Host $host;
\n }
\n}<\/p>\n \u4e0a\u8ff0\u914d\u7f6e\u542f\u7528\u4e86 SSL \u52a0\u5bc6，ssl_certificate \u548c ssl_certificate_key \u5206\u522b\u6307\u5b9a\u8bc1\u4e66\u4e0e\u79c1\u94a5\u8def\u5f84，\u786e\u4fdd\u4f20\u8f93\u5c42\u5b89\u5168\u3002<\/p>\n \u7a7f\u900f\u9632\u706b\u5899：\u4f7f\u7528\u53cd\u5411\u96a7\u9053<\/h5>\n\u5bf9\u4e8e\u5185\u7f51\u670d\u52a1\u66b4\u9732\u81f3\u516c\u7f51，\u53ef\u501f\u52a9 SSH \u53cd\u5411\u96a7\u9053：<\/p>\n \n- \u4ece\u5185\u7f51\u4e3b\u673a\u53d1\u8d77\u8fde\u63a5，\u907f\u514d\u5f00\u653e\u5165\u7ad9\u7aef\u53e3<\/li>\n
- \u5229\u7528\u516c\u7f51\u8df3\u677f\u673a（Bastion Host）\u4e2d\u8f6c\u6d41\u91cf<\/li>\n
- \u7ed3\u5408 autossh \u5b9e\u73b0\u8fde\u63a5\u4fdd\u6d3b<\/li>\n<\/ul>\n
\u8be5\u7b56\u7565\u63d0\u5347\u4e86\u5b89\u5168\u6027，\u540c\u65f6\u89e3\u51b3\u4e86 NAT \u6216\u9632\u706b\u5899\u5bfc\u81f4\u7684\u8bbf\u95ee\u969c\u788d\u3002<\/p>\n 4.4 \u4e0e SCADA \u7cfb\u7edf\u96c6\u6210\u7684\u63a5\u53e3\u8bbe\u8ba1\u6a21\u5f0f<\/h4>\n\u5728\u5de5\u4e1a\u81ea\u52a8\u5316\u7cfb\u7edf\u4e2d，\u4e0eSCADA\u7cfb\u7edf\u7684\u9ad8\u6548\u96c6\u6210\u4f9d\u8d56\u4e8e\u7a33\u5b9a\u3001\u53ef\u6269\u5c55\u7684\u63a5\u53e3\u8bbe\u8ba1\u6a21\u5f0f\u3002\u5e38\u7528\u6a21\u5f0f\u5305\u62ec\u8f6e\u8be2（Polling）\u3001\u4e8b\u4ef6\u9a71\u52a8（Event-Driven）\u548c\u6d88\u606f\u4e2d\u95f4\u4ef6\u96c6\u6210\u3002<\/p>\n \u6570\u636e\u540c\u6b65\u673a\u5236<\/h5>\n\u8f6e\u8be2\u6a21\u5f0f\u901a\u8fc7\u5b9a\u65f6\u8bf7\u6c42\u83b7\u53d6PLC\u6216RTU\u6570\u636e，\u9002\u7528\u4e8e\u4f4e\u9891\u66f4\u65b0\u573a\u666f\u3002\u800c\u4e8b\u4ef6\u9a71\u52a8\u6a21\u5f0f\u5229\u7528OPC UA\u7b49\u534f\u8bae\u5b9e\u73b0\u6570\u636e\u53d8\u66f4\u63a8\u9001，\u964d\u4f4e\u7f51\u7edc\u8d1f\u8f7d\u3002<\/p>\n \u5178\u578b\u901a\u4fe1\u63a5\u53e3\u5b9e\u73b0<\/h5>\n\u91c7\u7528RESTful API\u4e0eMQTT\u7ed3\u5408\u7684\u65b9\u5f0f，\u5b9e\u73b0\u53cc\u5411\u901a\u4fe1：<\/p>\n # MQTT\u5ba2\u6237\u7aef\u8ba2\u9605SCADA\u4e3b\u9898
\nimport paho.mqtt.client as mqtt<\/p>\n def on_message(client, userdata, msg):
\n print(f"\u6536\u5230\u6570\u636e: {msg.payload} \u6765\u81ea\u4e3b\u9898: {msg.topic}")<\/p>\n client = mqtt.Client("SCADA_GATEWAY")
\nclient.connect("broker.scada.local", 1883)
\nclient.subscribe("scada\/sensor\/data")
\nclient.on_message = on_message
\nclient.loop_start()<\/p>\n \u4e0a\u8ff0\u4ee3\u7801\u5b9e\u73b0\u8fb9\u7f18\u7f51\u5173\u8ba2\u9605SCADA\u6570\u636e\u6d41，on_message\u56de\u8c03\u5904\u7406\u5b9e\u65f6\u6570\u636e，\u9002\u7528\u4e8e\u72b6\u6001\u76d1\u63a7\u4e0e\u544a\u8b66\u54cd\u5e94\u3002<\/p>\n \u63a5\u53e3\u6a21\u5f0f\u5bf9\u6bd4<\/h5>\n\n\n\u6a21\u5f0f\u5ef6\u8fdf\u53ef\u9760\u6027\u9002\u7528\u573a\u666f<\/tr>\n \n| \u8f6e\u8be2<\/td>\n | \u9ad8<\/td>\n | \u4e2d<\/td>\n | \u7b80\u5355\u8bbe\u5907\u8bfb\u53d6<\/td>\n<\/tr>\n | \n| \u4e8b\u4ef6\u9a71\u52a8<\/td>\n | \u4f4e<\/td>\n | \u9ad8<\/td>\n | \u5b9e\u65f6\u63a7\u5236<\/td>\n<\/tr>\n | \n| \u6d88\u606f\u961f\u5217<\/td>\n | \u4f4e<\/td>\n | \u9ad8<\/td>\n | \u5206\u5e03\u5f0f\u7cfb\u7edf<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\u7b2c\u4e94\u7ae0：\u603b\u7ed3\u4e0e\u5c55\u671b<\/h3>\n\u5fae\u670d\u52a1\u67b6\u6784\u7684\u6f14\u8fdb\u8d8b\u52bf<\/h5>\n\u73b0\u4ee3\u4f01\u4e1a\u7cfb\u7edf\u6b63\u52a0\u901f\u5411\u4e91\u539f\u751f\u8f6c\u578b，\u5fae\u670d\u52a1\u67b6\u6784\u6210\u4e3a\u4e3b\u6d41\u9009\u62e9\u3002\u4f8b\u5982，\u67d0\u7535\u5546\u5e73\u53f0\u901a\u8fc7\u5c06\u5355\u4f53\u5e94\u7528\u62c6\u5206\u4e3a\u8ba2\u5355\u3001\u652f\u4ed8\u3001\u5e93\u5b58\u7b49\u72ec\u7acb\u670d\u52a1，\u663e\u8457\u63d0\u5347\u4e86\u90e8\u7f72\u7075\u6d3b\u6027\u548c\u6545\u969c\u9694\u79bb\u80fd\u529b\u3002<\/p>\n \n- \u670d\u52a1\u7f51\u683c（Service Mesh）\u6280\u672f\u5982 Istio \u63d0\u4f9b\u4e86\u66f4\u7ec6\u7c92\u5ea6\u7684\u6d41\u91cf\u63a7\u5236<\/li>\n
- \u65e0\u670d\u52a1\u5668\u51fd\u6570（Serverless）\u88ab\u7528\u4e8e\u5904\u7406\u7a81\u53d1\u6027\u9ad8\u5e76\u53d1\u4efb\u52a1<\/li>\n
- \u591a\u8fd0\u884c\u65f6\u67b6\u6784\u9010\u6e10\u53d6\u4ee3\u4f20\u7edf\u5355\u4f53\u4e2d\u95f4\u4ef6\u6a21\u5f0f<\/li>\n<\/ul>\n
\u53ef\u89c2\u6d4b\u6027\u7684\u5b9e\u8df5\u5347\u7ea7<\/h5>\n\u5728\u590d\u6742\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d，\u65e5\u5fd7\u3001\u6307\u6807\u4e0e\u8ffd\u8e2a\u7684\u7edf\u4e00\u81f3\u5173\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u4e00\u6bb5\u5178\u578b\u7684 OpenTelemetry \u914d\u7f6e\u4ee3\u7801：<\/p>\n \/\/ \u521d\u59cb\u5316 Tracer
\ntp, err := sdktrace.NewProvider(sdktrace.WithSampler(sdktrace.AlwaysSample()))
\nif err != nil {
\n log.Fatal(err)
\n}
\notel.SetTracerProvider(tp)<\/p>\n \/\/ \u5bfc\u51fa trace \u5230 Jaeger
\nexp, err := jaeger.NewExporter(jaeger.WithAgentEndpoint())
\nif err != nil {
\n log.Fatal(err)
\n}<\/p>\n \u672a\u6765\u6280\u672f\u878d\u5408\u65b9\u5411<\/h5>\n\n\n\u6280\u672f\u9886\u57df\u5f53\u524d\u6311\u6218\u6f5c\u5728\u89e3\u51b3\u65b9\u6848<\/tr>\n \n| \u8fb9\u7f18\u8ba1\u7b97<\/td>\n | \u4f4e\u5ef6\u8fdf\u4e0e\u6570\u636e\u540c\u6b65<\/td>\n | Kubernetes + eBPF \u5b9e\u73b0\u8f7b\u91cf\u8c03\u5ea6<\/td>\n<\/tr>\n | \n| AI \u8fd0\u7ef4<\/td>\n | \u5f02\u5e38\u68c0\u6d4b\u8bef\u62a5\u7387\u9ad8<\/td>\n | \u7ed3\u5408 LLM \u505a\u6839\u56e0\u5206\u6790\u63a8\u7406<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n [API Gateway] \u2192 [Auth Service] \u2192 [Data Processor] \u2192 [Event Bus]
\n \u2193 \u2191
\n [Rate Limiter] [Metrics Collector]<\/p>\n","protected":false},"excerpt":{"rendered":" \u7b2c\u4e00\u7ae0：C# \u5728\u5de5\u4e1a 4.0 \u4e2d\u7684 OPC UA \u901a\u4fe1\u5f00\u53d1\u5728\u5de5\u4e1a 4.0 \u7684\u6f14\u8fdb\u4e2d，\u8bbe\u5907\u4e0e\u7cfb\u7edf\u4e4b\u95f4\u7684\u4e92\u64cd\u4f5c\u6027\u6210\u4e3a\u667a\u80fd\u5236\u9020\u7684\u6838\u5fc3\u9700\u6c42\u3002OPC UA（Open Platform Communications Unified Architecture）\u4f5c\u4e3a\u4e00\u79cd\u8de8\u5e73\u53f0\u3001\u5b89\u5168\u53ef\u9760\u7684\u5de5\u4e1a\u901a\u4fe1\u534f\u8bae，\u5e7f\u6cdb\u5e94\u7528\u4e8e\u6570\u636e\u91c7\u96c6\u3001\u76d1\u63a7\u4e0e\u63a7\u5236\u7cfb\u7edf\u4e4b\u95f4\u7684\u4fe1\u606f\u4ea4\u6362\u3002C# \u51ed\u501f\u5176\u5f3a\u5927\u7684 .NET \u751f\u6001\u548c\u5bf9\u5f02\u6b65\u7f16\u7a0b\u7684\u826f\u597d\u652f\u6301，\u6210<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"topic":[],"class_list":["post-61563","post","type-post","status-publish","format-standard","hentry","category-server"],"yoast_head":"\n \u4ece\u96f6\u5f00\u59cb\u642d\u5efaOPC UA\u670d\u52a1\u5668\uff1aC#\u5f00\u53d1\u8005\u4e0d\u53ef\u9519\u8fc7\u76848\u4e2a\u5b9e\u6218\u8981\u70b9 - 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