diff --git a/edc-web/app/templates/device_logs.html b/edc-web/app/templates/device_logs.html
index 405abd5..df0c2dc 100644
--- a/edc-web/app/templates/device_logs.html
+++ b/edc-web/app/templates/device_logs.html
@@ -13,6 +13,8 @@
             <option value="online">在线</option>
             <option value="offline">离线</option>
             <option value="poor">通信不良</option>
+            <option value="tcp_connect">TCP连接</option>
+            <option value="tcp_disconnect">TCP断开</option>
         </select>
     </label>
     <button onclick="searchLogs(1)" class="btn-search">查询</button>
@@ -68,6 +70,8 @@ function renderTable(records) {
         if (r.event_type === 'online' || r.event_type === 'login') typeStyle = 'color:#27ae60;font-weight:bold;';
         else if (r.event_type === 'offline') typeStyle = 'color:#e74c3c;font-weight:bold;';
         else if (r.event_type === 'poor') typeStyle = 'color:#f39c12;font-weight:bold;';
+        else if (r.event_type === 'tcp_disconnect') typeStyle = 'color:#e74c3c;';
+        else if (r.event_type === 'tcp_connect') typeStyle = 'color:#3498db;';
         return `
         <tr>
             <td>${r.id}</td>
@@ -81,7 +85,8 @@ function renderTable(records) {
 }
 
 function eventLabel(t) {
-    const m = {login: '登录', online: '在线', offline: '离线', poor: '通信不良'};
+    const m = {login: '登录', online: '在线', offline: '离线', poor: '通信不良',
+               tcp_connect: 'TCP连接', tcp_disconnect: 'TCP断开'};
     return m[t] || t;
 }
 
diff --git a/edc_server b/edc_server
index 11f1c4f..c875cf3 160000
--- a/edc_server
+++ b/edc_server
@@ -1 +1 @@
-Subproject commit 11f1c4f55bee79239ea0b7de9d88ab64e81e9c4a
+Subproject commit c875cf383ba9cb149a7d48fe23f2d102b622b475