diff --git a/app/Http/Controllers/V1/Admin/PlanController.php b/app/Http/Controllers/V1/Admin/PlanController.php
index 9d39d683..ce88f784 100755
--- a/app/Http/Controllers/V1/Admin/PlanController.php
+++ b/app/Http/Controllers/V1/Admin/PlanController.php
@@ -45,6 +45,7 @@ class PlanController extends Controller
                     User::where('plan_id', $plan->id)->update([
                         'group_id' => $params['group_id'],
                         'transfer_enable' => $params['transfer_enable'] * 1073741824,
+                        'device_limit' => $params['device_limit'],
                         'speed_limit' => $params['speed_limit']
                     ]);
                 }
diff --git a/app/Http/Controllers/V1/Admin/UserController.php b/app/Http/Controllers/V1/Admin/UserController.php
index c5c3e866..1081aaf3 100644
--- a/app/Http/Controllers/V1/Admin/UserController.php
+++ b/app/Http/Controllers/V1/Admin/UserController.php
@@ -157,16 +157,17 @@ class UserController extends Controller
             }
         }
 
-        $data = "邮箱,余额,推广佣金,总流量,剩余流量,套餐到期时间,订阅计划,订阅地址\r\n";
+        $data = "邮箱,余额,推广佣金,总流量,设备数限制,剩余流量,套餐到期时间,订阅计划,订阅地址\r\n";
         foreach($res as $user) {
             $expireDate = $user['expired_at'] === NULL ? '长期有效' : date('Y-m-d H:i:s', $user['expired_at']);
             $balance = $user['balance'] / 100;
             $commissionBalance = $user['commission_balance'] / 100;
             $transferEnable = $user['transfer_enable'] ? $user['transfer_enable'] / 1073741824 : 0;
+            $deviceLimit = $user['devce_limit'] ? $user['devce_limit'] : NULL;
             $notUseFlow = (($user['transfer_enable'] - ($user['u'] + $user['d'])) / 1073741824) ?? 0;
             $planName = $user['plan_name'] ?? '无订阅';
             $subscribeUrl = Helper::getSubscribeUrl('/api/v1/client/subscribe?token=' . $user['token']);
-            $data .= "{$user['email']},{$balance},{$commissionBalance},{$transferEnable},{$notUseFlow},{$expireDate},{$planName},{$subscribeUrl}\r\n";
+            $data .= "{$user['email']},{$balance},{$commissionBalance},{$transferEnable}, {$deviceLimit}, {$notUseFlow},{$expireDate},{$planName},{$subscribeUrl}\r\n";
         }
         echo "\xEF\xBB\xBF" . $data;
     }
@@ -185,6 +186,7 @@ class UserController extends Controller
                 'plan_id' => isset($plan->id) ? $plan->id : NULL,
                 'group_id' => isset($plan->group_id) ? $plan->group_id : NULL,
                 'transfer_enable' => isset($plan->transfer_enable) ? $plan->transfer_enable * 1073741824 : 0,
+                'device_limit' => isset($plan->device_limit) ? $plan->device_limit : NULL,
                 'expired_at' => $request->input('expired_at') ?? NULL,
                 'uuid' => Helper::guid(true),
                 'token' => Helper::guid()
@@ -220,6 +222,7 @@ class UserController extends Controller
                 'plan_id' => isset($plan->id) ? $plan->id : NULL,
                 'group_id' => isset($plan->group_id) ? $plan->group_id : NULL,
                 'transfer_enable' => isset($plan->transfer_enable) ? $plan->transfer_enable * 1073741824 : 0,
+                'device_limit' => isset($plan->device_limit) ? $plan->device_limit : NULL,
                 'expired_at' => $request->input('expired_at') ?? NULL,
                 'uuid' => Helper::guid(true),
                 'token' => Helper::guid(),
diff --git a/app/Http/Controllers/V1/Passport/AuthController.php b/app/Http/Controllers/V1/Passport/AuthController.php
index 050be737..4e0b4e08 100644
--- a/app/Http/Controllers/V1/Passport/AuthController.php
+++ b/app/Http/Controllers/V1/Passport/AuthController.php
@@ -153,6 +153,7 @@ class AuthController extends Controller
             $plan = Plan::find(config('v2board.try_out_plan_id'));
             if ($plan) {
                 $user->transfer_enable = $plan->transfer_enable * 1073741824;
+                $user->device_limit = $plan->device_limit;
                 $user->plan_id = $plan->id;
                 $user->group_id = $plan->group_id;
                 $user->expired_at = time() + (config('v2board.try_out_hour', 1) * 3600);
diff --git a/app/Http/Controllers/V1/Server/UniProxyController.php b/app/Http/Controllers/V1/Server/UniProxyController.php
index 031a9e50..31afc0a4 100644
--- a/app/Http/Controllers/V1/Server/UniProxyController.php
+++ b/app/Http/Controllers/V1/Server/UniProxyController.php
@@ -43,6 +43,20 @@ class UniProxyController extends Controller
         $users = $this->serverService->getAvailableUsers($this->nodeInfo->group_id);
         $users = $users->toArray();
 
+        $users = array_map(function ($user) {
+            $count =0;
+            $ips_array = Cache::get('ALIVE_IP_USER_'. $user['id']);
+            if ($ips_array) {
+                foreach ($ips_array as $nodeid => $ip_array) {
+                    foreach ($ip_array['aliveips'] as $ip) {
+                        $count++;
+                    }
+                }
+            }
+            $user['alive_ip'] = $count;
+            return $user;
+        }, $users);
+
         $response['users'] = $users;
 
         $eTag = sha1(json_encode($response));
@@ -68,6 +82,41 @@ class UniProxyController extends Controller
         ]);
     }
 
+    // 后端提交在线数据
+    public function alive(Request $request)
+    {
+        $data = file_get_contents('php://input');
+        $data = json_decode($data, true);
+        if ($data === null && json_last_error() !== JSON_ERROR_NONE) {
+            // JSON decoding error
+            return response([
+                'error' => 'Invalid online data'
+            ], 400);
+        }
+
+        foreach ($data as $k => $v) {
+            $updateAt = time();
+            $oldips_array = Cache::get('ALIVE_IP_USER_'. $k) ?? [];
+
+            // 更新节点数据
+            $oldips_array[$this->nodeId] = ['aliveips' => $v, 'lastupdateAt' => $updateAt];
+            //删除过期节点在线数据
+            $expired_array = [];
+            foreach($oldips_array as $nodeid => $oldips) {
+                if ($updateAt - $oldips['lastupdateAt'] > 300){
+                    $expired_array[$nodeid] = '';
+                }
+            }
+            // 清理过期数据并存回缓存
+            $new_array = array_diff_key($oldips_array, $expired_array);
+            Cache::put('ALIVE_IP_USER_'. $k, $new_array, 120);
+        }
+
+        return response([
+            'data' => true
+        ]);
+    }
+
     // 后端获取配置
     public function config(Request $request)
     {
diff --git a/app/Http/Controllers/V1/User/UserController.php b/app/Http/Controllers/V1/User/UserController.php
index 2f827011..e66ef76c 100755
--- a/app/Http/Controllers/V1/User/UserController.php
+++ b/app/Http/Controllers/V1/User/UserController.php
@@ -87,6 +87,7 @@ class UserController extends Controller
             ->select([
                 'email',
                 'transfer_enable',
+                'device_limit',
                 'last_login_at',
                 'created_at',
                 'banned',
@@ -138,6 +139,7 @@ class UserController extends Controller
                 'u',
                 'd',
                 'transfer_enable',
+                'device_limit',
                 'email',
                 'uuid'
             ])
diff --git a/app/Http/Requests/Admin/PlanSave.php b/app/Http/Requests/Admin/PlanSave.php
index 2aa4583a..7e9eb158 100755
--- a/app/Http/Requests/Admin/PlanSave.php
+++ b/app/Http/Requests/Admin/PlanSave.php
@@ -18,6 +18,7 @@ class PlanSave extends FormRequest
             'content' => '',
             'group_id' => 'required',
             'transfer_enable' => 'required',
+            'device_limit' => 'nullable|integer',
             'month_price' => 'nullable|integer',
             'quarter_price' => 'nullable|integer',
             'half_year_price' => 'nullable|integer',
@@ -40,6 +41,7 @@ class PlanSave extends FormRequest
             'type.in' => '套餐类型格式有误',
             'group_id.required' => '权限组不能为空',
             'transfer_enable.required' => '流量不能为空',
+            'device_limit.integer' => '设备数限制格式有误',
             'month_price.integer' => '月付金额格式有误',
             'quarter_price.integer' => '季付金额格式有误',
             'half_year_price.integer' => '半年付金额格式有误',
diff --git a/app/Http/Requests/Admin/UserFetch.php b/app/Http/Requests/Admin/UserFetch.php
index 899c6a9f..3f30e505 100644
--- a/app/Http/Requests/Admin/UserFetch.php
+++ b/app/Http/Requests/Admin/UserFetch.php
@@ -14,7 +14,7 @@ class UserFetch extends FormRequest
     public function rules()
     {
         return [
-            'filter.*.key' => 'required|in:id,email,transfer_enable,d,expired_at,uuid,token,invite_by_email,invite_user_id,plan_id,banned,remarks,is_admin',
+            'filter.*.key' => 'required|in:id,email,transfer_enable,device_limit,d,expired_at,uuid,token,invite_by_email,invite_user_id,plan_id,banned,remarks,is_admin',
             'filter.*.condition' => 'required|in:>,<,=,>=,<=,模糊,!=',
             'filter.*.value' => 'required'
         ];
diff --git a/app/Http/Requests/Admin/UserUpdate.php b/app/Http/Requests/Admin/UserUpdate.php
index c175f33a..91325cb8 100644
--- a/app/Http/Requests/Admin/UserUpdate.php
+++ b/app/Http/Requests/Admin/UserUpdate.php
@@ -17,6 +17,7 @@ class UserUpdate extends FormRequest
             'email' => 'required|email:strict',
             'password' => 'nullable|min:8',
             'transfer_enable' => 'numeric',
+            'device_limit' => 'nullable|integer',
             'expired_at' => 'nullable|integer',
             'banned' => 'required|in:0,1',
             'plan_id' => 'nullable|integer',
@@ -40,6 +41,7 @@ class UserUpdate extends FormRequest
             'email.required' => '邮箱不能为空',
             'email.email' => '邮箱格式不正确',
             'transfer_enable.numeric' => '流量格式不正确',
+            'device_limit.integer' => '设备数限制格式不正确',
             'expired_at.integer' => '到期时间格式不正确',
             'banned.required' => '是否封禁不能为空',
             'banned.in' => '是否封禁格式不正确',
diff --git a/app/Http/Requests/Staff/UserUpdate.php b/app/Http/Requests/Staff/UserUpdate.php
index be221443..0597bfe7 100644
--- a/app/Http/Requests/Staff/UserUpdate.php
+++ b/app/Http/Requests/Staff/UserUpdate.php
@@ -17,6 +17,7 @@ class UserUpdate extends FormRequest
             'email' => 'required|email:strict',
             'password' => 'nullable',
             'transfer_enable' => 'numeric',
+            'device_limit' => 'nullable|integer',
             'expired_at' => 'nullable|integer',
             'banned' => 'required|in:0,1',
             'plan_id' => 'nullable|integer',
@@ -35,6 +36,7 @@ class UserUpdate extends FormRequest
             'email.required' => '邮箱不能为空',
             'email.email' => '邮箱格式不正确',
             'transfer_enable.numeric' => '流量格式不正确',
+            'device_limit.integer' => '设备数限制格式不正确',
             'expired_at.integer' => '到期时间格式不正确',
             'banned.required' => '是否封禁不能为空',
             'banned.in' => '是否封禁格式不正确',
diff --git a/app/Services/OrderService.php b/app/Services/OrderService.php
index 0133222e..6964a6f3 100644
--- a/app/Services/OrderService.php
+++ b/app/Services/OrderService.php
@@ -269,6 +269,7 @@ class OrderService
             $this->user->expired_at = time();
         }
         $this->user->transfer_enable = $plan->transfer_enable * 1073741824;
+        $this->user->device_limit = $plan->device_limit;
         // 从一次性转换到循环
         if ($this->user->expired_at === NULL) $this->buyByResetTraffic();
         // 新购
@@ -282,6 +283,7 @@ class OrderService
     {
         $this->buyByResetTraffic();
         $this->user->transfer_enable = $plan->transfer_enable * 1073741824;
+        $this->user->device_limit = $plan->device_limit;
         $this->user->plan_id = $plan->id;
         $this->user->group_id = $plan->group_id;
         $this->user->expired_at = NULL;
diff --git a/app/Services/ServerService.php b/app/Services/ServerService.php
index c1e2d84c..5615e2be 100755
--- a/app/Services/ServerService.php
+++ b/app/Services/ServerService.php
@@ -167,7 +167,8 @@ class ServerService
             ->select([
                 'id',
                 'uuid',
-                'speed_limit'
+                'speed_limit',
+                'device_limit'
             ])
             ->get();
     }
diff --git a/database/install.sql b/database/install.sql
index 59f25813..e84e1494 100644
--- a/database/install.sql
+++ b/database/install.sql
@@ -180,6 +180,7 @@ CREATE TABLE `v2_plan` (
                            `id` int(11) NOT NULL AUTO_INCREMENT,
                            `group_id` int(11) NOT NULL,
                            `transfer_enable` int(11) NOT NULL,
+                           `device_limit` int(11) DEFAULT NULL,
                            `name` varchar(255) NOT NULL,
                            `speed_limit` int(11) DEFAULT NULL,
                            `show` tinyint(1) NOT NULL DEFAULT '0',
@@ -451,6 +452,7 @@ CREATE TABLE `v2_user` (
                            `u` bigint(20) NOT NULL DEFAULT '0',
                            `d` bigint(20) NOT NULL DEFAULT '0',
                            `transfer_enable` bigint(20) NOT NULL DEFAULT '0',
+                           `device_limit` int(11) DEFAULT NULL,
                            `banned` tinyint(1) NOT NULL DEFAULT '0',
                            `is_admin` tinyint(1) NOT NULL DEFAULT '0',
                            `last_login_at` int(11) DEFAULT NULL,
diff --git a/database/update.sql b/database/update.sql
index fa834057..0d4218a3 100644
--- a/database/update.sql
+++ b/database/update.sql
@@ -723,3 +723,8 @@ ALTER TABLE `v2_server_hysteria`
 UPDATE v2_server_vless
     SET tls_settings = REPLACE(tls_settings, 'shortId', 'short_id');
 
+ALTER TABLE `v2_plan`
+    ADD `device_limit` int(11) NULL AFTER `transfer_enable`;
+
+ALTER TABLE `v2_user`
+    ADD `device_limit` int(11) NULL AFTER `transfer_enable`;
diff --git a/public/assets/admin/umi.js b/public/assets/admin/umi.js
index 834be795..57b8f577 100644
--- a/public/assets/admin/umi.js
+++ b/public/assets/admin/umi.js
@@ -22201,6 +22201,14 @@
                     className: "form-group"
                 }, p.a.createElement("label", {
                     for: "example-text-input-alt"
+                }, "\u8bbe\u5907\u6570\u9650\u5236"), p.a.createElement(u["a"], {
+                    placeholder: "\u7559\u7a7a\u5219\u4e0d\u9650\u5236",
+                    defaultValue: t.device_limit,
+                    onChange: e=>this.formChange("device_limit", e.target.value)
+                })), p.a.createElement("div", {
+                    className: "form-group"
+                }, p.a.createElement("label", {
+                    for: "example-text-input-alt"
                 }, "\u5230\u671f\u65f6\u95f4"), p.a.createElement("div", null, p.a.createElement(c["a"], {
                     placeholder: "\u957f\u671f\u6709\u6548",
                     defaultValue: null !== t.expired_at && v()(1e3 * t.expired_at),
@@ -70664,6 +70672,14 @@
                     render: (e,t)=>{
                         return e
                     }
+                }, {
+                    title: "\u8bbe\u5907\u6570\u9650\u5236",
+                    dataIndex: "device_limit",
+                    key: "device_limit",
+                    sorter: !0,
+                    render: (e,t)=>{
+                        return null !== e ? e : "-"
+                    }
                 }, {
                     title: "\u5230\u671f\u65f6\u95f4",
                     dataIndex: "expired_at",
@@ -80496,6 +80512,20 @@
                     className: "form-group"
                 }, m.a.createElement("label", {
                     for: "example-text-input-alt"
+                }, "\u8bbe\u5907\u6570\u9650\u5236"), m.a.createElement(C["a"], {
+                    placeholder: "\u7559\u7a7a\u5219\u4e0d\u9650\u5236",
+                    value: this.state.record.device_limit,
+                    onChange: e=>{
+                        this.setState({
+                            record: d()({}, this.state.record, {
+                                device_limit: e.target.value
+                            })
+                        })
+                    }
+                })), m.a.createElement("div", {
+                    className: "form-group"
+                }, m.a.createElement("label", {
+                    for: "example-text-input-alt"
                 }, "\u6743\u9650\u7ec4 ", m.a.createElement(O["a"], null, m.a.createElement("a", {
                     href: "javascript:(0);"
                 }, "\u6dfb\u52a0\u6743\u9650\u7ec4"))), m.a.createElement(_["a"], {
@@ -80737,6 +80767,13 @@
                     render: e=>{
                         return m.a.createElement(m.a.Fragment, null, e, " GB")
                     }
+                }, {
+                    title: "\u8bbe\u5907\u6570\u9650\u5236",
+                    dataIndex: "device_limit",
+                    key: "device_limit",
+                    render: e=>{
+                        return null !== e ? e : "-"
+                    }
                 }, {
                     title: "\u6708\u4ed8",
                     dataIndex: "month_price",