diff --git a/projects/IoTCenter/Controllers/AppController.cs b/projects/IoTCenter/Controllers/AppController.cs
index 73fa2b02..416c40d5 100644
--- a/projects/IoTCenter/Controllers/AppController.cs
+++ b/projects/IoTCenter/Controllers/AppController.cs
@@ -25,6 +25,8 @@ namespace IoTCenter.Controllers
     {
         private readonly IConfiguration _configuration;
         private readonly IJwtHelper _jwtHelper;
+        private readonly IRepository<Category> _categoryRepo;
+        private readonly IRepository<Product> _productRepo;
         private readonly IRepository<Node> _nodeRepo;
         private readonly IRepository<Scene> _sceneRepo;
         private readonly IRepository<SceneCommand> _sceneCommandRepo;
@@ -35,6 +37,8 @@ namespace IoTCenter.Controllers
 
         public AppController(IConfiguration configuration,
             IJwtHelper jwtHelper,
+            IRepository<Category> categoryRepo,
+            IRepository<Product> productRepo,
             IRepository<Node> nodeRepo,
             IRepository<Scene> sceneRepo,
             IRepository<SceneCommand> sceneCommandRepo,
@@ -45,6 +49,8 @@ namespace IoTCenter.Controllers
         {
             this._configuration = configuration;
             this._jwtHelper = jwtHelper;
+            this._categoryRepo = categoryRepo;
+            this._productRepo = productRepo;
             this._nodeRepo = nodeRepo;
             this._sceneRepo = sceneRepo;
             this._sceneCommandRepo = sceneCommandRepo;
@@ -60,13 +66,27 @@ namespace IoTCenter.Controllers
             return View();
         }
 
+        public IActionResult GetProducts(string token)
+        {
+            var userName = this._jwtHelper.GetPayload(token)["UserName"].ToString();
+            var model = this._productRepo.ReadOnlyTable().Select(o => new
+            {
+                o.Id,
+                o.Number,
+                o.Name,
+                o.Image,
+                DeviceCount = o.Devices.Count()
+            }).ToList();
+            return Json(model);
+        }
+
         public IActionResult GetNodes(string token)
         {
             var userName = this._jwtHelper.GetPayload(token)["UserName"].ToString();
             var model = this._nodeRepo.ReadOnlyTable()
                 .Include(o => o.Scenes)
-                .OrderBy(o=>o.DisplayOrder)
-                .ThenBy(o=>o.Name)
+                .OrderBy(o => o.DisplayOrder)
+                .ThenBy(o => o.Name)
                 .Select(o => new
                 {
                     o.Id,
@@ -75,7 +95,7 @@ namespace IoTCenter.Controllers
                     o.Image,
                     o.DisplayOrder,
                     o.Scenes,
-                    o.Devices.Count
+                    DeviceCount = o.Devices.Count
                 })
                 .ToList();
             return Json(model);
diff --git a/projects/IoTCenter/iotcenter.db b/projects/IoTCenter/iotcenter.db
index 0ecdb1a4..1fdb9881 100644
Binary files a/projects/IoTCenter/iotcenter.db and b/projects/IoTCenter/iotcenter.db differ
diff --git a/projects/IoTClient/Assets/StreamingAssets/IoT.Resources.csproj b/projects/IoTClient/Assets/StreamingAssets/IoT.Resources.csproj
index 41857b7d..03684cc3 100644
--- a/projects/IoTClient/Assets/StreamingAssets/IoT.Resources.csproj
+++ b/projects/IoTClient/Assets/StreamingAssets/IoT.Resources.csproj
@@ -22,6 +22,8 @@
     <None Remove="wwwroot\fonts\Framework7Icons-Regular.woff" />
     <None Remove="wwwroot\fonts\Framework7Icons-Regular.woff2" />
     <None Remove="wwwroot\images\empty.png" />
+    <None Remove="wwwroot\lib\signalr\signalr-protocol-msgpack.min.js" />
+    <None Remove="wwwroot\lib\signalr\signalr.min.js" />
     <None Remove="wwwroot\nodes.html" />
     <None Remove="wwwroot\user.html" />
   </ItemGroup>
@@ -30,5 +32,13 @@
       <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
       <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
     </Content>
+    <Content Include="wwwroot\lib\signalr\signalr-protocol-msgpack.min.js">
+      <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
+      <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
+    </Content>
+    <Content Include="wwwroot\lib\signalr\signalr.min.js">
+      <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
+      <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
+    </Content>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/projects/IoTClient/Assets/StreamingAssets/wwwroot/index.html b/projects/IoTClient/Assets/StreamingAssets/wwwroot/index.html
index c0ee3fb9..bfce3b0a 100644
--- a/projects/IoTClient/Assets/StreamingAssets/wwwroot/index.html
+++ b/projects/IoTClient/Assets/StreamingAssets/wwwroot/index.html
@@ -13,9 +13,29 @@
         <f7-app :params="$root.f7params">
             <f7-view main>
                 <f7-page>
-                    <f7-navbar title="首页">
-                        <a href="config.html" slot="nav-right" class="link external"><i class="icon f7-icons if-not-md">menu</i></a>
+                    <f7-navbar title="产品">
+                        <f7-nav-right>
+                            <f7-link class="searchbar-enable" data-searchbar=".searchbar" icon-ios="f7:search"></f7-link>
+                        </f7-nav-right>
+                        <f7-searchbar class="searchbar-demo"
+                                      expandable
+                                      search-container=".search-list"
+                                      search-in=".item-title"></f7-searchbar>
                     </f7-navbar>
+                    <f7-list class="searchbar-not-found">
+                        <f7-list-item title="没有匹配的结果"></f7-list-item>
+                    </f7-list>
+                    <f7-list class="search-list searchbar-found">
+                        <li style="width:33.3%;display:inline-block;" v-if="model" v-for="n in model">
+                            <a :href="'node.html?number='+n.Number" class="card external" style="display:block;text-align:center;">
+                                <div class="card-header">
+                                    <span class="item-title">{{n.Name}}</span>
+                                    <span class="right"><span class="badge color-green">{{n.DeviceCount}}</span></span>
+                                </div>
+                                <img style="margin:0 auto;" :src="server+'/IoTCenter'+n.Image" />
+                            </a>
+                        </li>
+                    </f7-list>
                     <f7-toolbar tabbar labels position="bottom">
                         <a href="index.html" class="tab-link external tab-link-active">
                             <i class="icon icon f7-icons">house</i>
@@ -34,6 +54,7 @@
             </f7-view>
         </f7-app>
     </div>
+    <script type="text/javascript" src="lib/signalr/signalr.min.js"></script>
     <script type="text/javascript" src="lib/axios/axios.min.js"></script>
     <script type="text/javascript" src="lib/jquery/jquery.min.js"></script>
     <script type="text/javascript" src="lib/jquery.validation/jquery.validate.min.js"></script>
@@ -41,6 +62,39 @@
     <script type="text/javascript" src="lib/vue/vue.min.js"></script>
     <script type="text/javascript" src="lib/framework7/js/framework7.bundle.min.js"></script>
     <script type="text/javascript" src="lib/framework7/js/framework7-vue.bundle.min.js"></script>
+    <script>
+        var debug = true;
+        var wsUrl = localStorage.getItem('server') + '/IoTCenter/hub?group=page';
+        var connectionId;
+        const connection = new signalR.HubConnectionBuilder()
+            .withUrl(wsUrl)
+            .build();
+        function connect() {
+            if (debug) { console.log('start connect to server:' + Date()); }
+            connection.start().then(function () {
+
+            }).catch(function (err) {
+                console.error(err.toString());
+                setTimeout(connect, 15 * 1000);
+            });
+        }
+        connection.on('Connected', function (id) {
+            connectionId = id;
+            console.log(connectionId);
+        });
+        connection.onclose(function (err) {
+            console.error(err);
+            setTimeout(connect, 15 * 1000);
+        });
+        connection.on("ServerToClient", function (method, json, from) {
+            console.log(method + ':' + json);
+            if (method == 'ProductEntityInserted' ||
+                method == 'DeviceEntityInserted' ||
+                method == 'DeviceEntityDeleted') {
+                vm.load();
+            }
+        });
+    </script>
     <script type="text/javascript">
         Framework7.use(Framework7Vue);
         var app;
@@ -55,7 +109,8 @@
                         theme: 'ios',
                     },
                     server: localStorage.getItem('server'),
-                    token: localStorage.getItem('token')
+                    token: localStorage.getItem('token'),
+                    model: null
                 };
             },
             mounted() {
@@ -68,25 +123,19 @@
                 this.$f7ready((f7) => {
                     app = this.$f7;
                 });
+                connect();
+                this.load();
             },
             methods: {
-                submit: function (e) {
-                    if (!$(e.target).valid()) {
-                        return;
-                    }
-                    var url = e.target.action;
-                    var data = $(e.target).serialize();
+                load: function () {
+                    var url = this.server + '/IoTCenter/App/GetProducts';
+                    var data = new FormData();
+                    data.append('token', this.token);
                     axios.post(url, data)
                         .then(function (response) {
                             console.log(response);
                             var data = response.data;
-                            if (data.Code === 0) {
-                                localStorage.setItem("token", data.Token);
-                                window.location.href = "index.html";
-                            }
-                            else {
-                                app.dialog.alert(data.Message, '警告', function () { });
-                            }
+                            vm.model = data;
                         })
                         .catch(function (error) {
                             app.dialog.alert(error, '警告', function () { })
diff --git a/projects/IoTClient/Assets/StreamingAssets/wwwroot/nodes.html b/projects/IoTClient/Assets/StreamingAssets/wwwroot/nodes.html
index 27cd4164..94fd70c2 100644
--- a/projects/IoTClient/Assets/StreamingAssets/wwwroot/nodes.html
+++ b/projects/IoTClient/Assets/StreamingAssets/wwwroot/nodes.html
@@ -26,7 +26,15 @@
                         <f7-list-item title="没有匹配的结果"></f7-list-item>
                     </f7-list>
                     <f7-list class="search-list searchbar-found">
-                        <f7-list-item  v-if="nodes" v-for="n in nodes" :title="n.Name" ></f7-list-item>
+                        <li style="width:33.3%;display:inline-block;" v-if="model" v-for="n in model">
+                            <a :href="'product.html?number='+n.Number" class="card external" style="display:block;text-align:center;">
+                                <div class="card-header">
+                                    <span class="item-title">{{n.Name}}</span>
+                                    <span class="right"><span class="badge color-green">{{n.DeviceCount}}</span></span>
+                                </div>
+                                <img style="margin:0 auto;" :src="server+'/IoTCenter'+n.Image" />
+                            </a>
+                        </li>
                     </f7-list>
                     <f7-toolbar tabbar labels position="bottom">
                         <a href="index.html" class="tab-link external">
@@ -46,6 +54,7 @@
             </f7-view>
         </f7-app>
     </div>
+    <script type="text/javascript" src="lib/signalr/signalr.min.js"></script>
     <script type="text/javascript" src="lib/axios/axios.min.js"></script>
     <script type="text/javascript" src="lib/jquery/jquery.min.js"></script>
     <script type="text/javascript" src="lib/jquery.validation/jquery.validate.min.js"></script>
@@ -53,6 +62,41 @@
     <script type="text/javascript" src="lib/vue/vue.min.js"></script>
     <script type="text/javascript" src="lib/framework7/js/framework7.bundle.min.js"></script>
     <script type="text/javascript" src="lib/framework7/js/framework7-vue.bundle.min.js"></script>
+    <script>
+        var debug = true;
+        var wsUrl = localStorage.getItem('server') + '/IoTCenter/hub?group=page';
+        var connectionId;
+        const connection = new signalR.HubConnectionBuilder()
+            .withUrl(wsUrl)
+            .build();
+        function connect() {
+            if (debug) { console.log('start connect to server:' + Date()); }
+            connection.start().then(function () {
+
+            }).catch(function (err) {
+                console.error(err.toString());
+                setTimeout(connect, 15 * 1000);
+            });
+        }
+        connection.on('Connected', function (id) {
+            connectionId = id;
+            console.log(connectionId);
+        });
+        connection.onclose(function (err) {
+            console.error(err);
+            setTimeout(connect, 15 * 1000);
+        });
+        connection.on("ServerToClient", function (method, json, from) {
+            console.log(method + ':' + json);
+            if (method == 'NodeEntityInserted' ||
+                'NodeEntityUpdated' ||
+                'NodeEntityDeleted' ||
+                method == 'DeviceEntityInserted' ||
+                method == 'DeviceEntityDeleted') {
+                vm.load();
+            }
+        });
+    </script>
     <script type="text/javascript">
         Framework7.use(Framework7Vue);
         var app;
@@ -68,7 +112,7 @@
                     },
                     server: localStorage.getItem('server'),
                     token: localStorage.getItem('token'),
-                    nodes: null
+                    model: null
                 };
             },
             mounted() {
@@ -82,6 +126,7 @@
                     app = this.$f7;
                 });
                 this.load();
+                connect();
             },
             methods: {
                 load: function () {
@@ -92,7 +137,7 @@
                         .then(function (response) {
                             console.log(response);
                             var data = response.data;
-                            vm.nodes = data;
+                            vm.model = data;
                         })
                         .catch(function (error) {
                             app.dialog.alert(error, '警告', function () { })
diff --git a/projects/IoTNode/iotnode.db b/projects/IoTNode/iotnode.db
index 13049622..776c56a1 100644
Binary files a/projects/IoTNode/iotnode.db and b/projects/IoTNode/iotnode.db differ