diff --git a/app/Http/Controllers/DeviceWarningController.php b/app/Http/Controllers/DeviceWarningController.php
index 60ee369..4761cab 100644
--- a/app/Http/Controllers/DeviceWarningController.php
+++ b/app/Http/Controllers/DeviceWarningController.php
@@ -7,6 +7,7 @@ use App\Http\Resources\DeviceWarningResource;
 use App\Models\DeviceWarning;
 use Illuminate\Http\Request;
 use Peidikeji\Setting\Models\Setting;
+use Illuminate\Support\Facades\DB;
 
 class DeviceWarningController extends Controller
 {
@@ -66,4 +67,19 @@ class DeviceWarningController extends Controller
 
         return $this->json(DeviceWarningResource::collection($list));
     }
+
+    /**
+     * 获取预警数量
+     */
+    public function warningLogNum(Request $request){
+        $list = DeviceWarning::filter($request->input())
+                ->select(DB::raw('lv, count(1) as num'))
+                ->groupBy('lv')
+                ->get()
+                ->pluck('num', 'lv')->toArray();
+        for($i = 1; $i <= 4; $i++) {
+            $data[$i] = $list[$i] ?? 0;
+        }
+        return $this->json($data);
+    }
 }
diff --git a/app/ModelFilters/DeviceWarningFilter.php b/app/ModelFilters/DeviceWarningFilter.php
index db35fa1..836a56d 100644
--- a/app/ModelFilters/DeviceWarningFilter.php
+++ b/app/ModelFilters/DeviceWarningFilter.php
@@ -11,6 +11,10 @@ class DeviceWarningFilter extends ModelFilter
         return $this->where('base_id', $base);
     }
 
+    public function device($device){
+        return $this->where('device_id', $device);
+    }
+
     public function status($status)
     {
         return $this->where('status', $status);
diff --git a/app/Models/DeviceWarning.php b/app/Models/DeviceWarning.php
index ea7306d..e455f6d 100644
--- a/app/Models/DeviceWarning.php
+++ b/app/Models/DeviceWarning.php
@@ -14,4 +14,8 @@ class DeviceWarning extends Model
         'device_id', 'base_id', 'lv', 'content', 'status', 'remarks',
         'linkos_device_id', 'linkos_reported_at',
     ];
+
+    public function base(){
+        return $this->belongsTo(AgriculturalBase::class, 'base_id');
+    }
 }
diff --git a/routes/api.php b/routes/api.php
index 3afcb82..dba16b1 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -52,6 +52,7 @@ Route::group(['middleware' => 'auth:sanctum'], function () {
         Route::get('device-warning-rules', [DeviceWarningController::class, 'rules']); //预警规则
         Route::put('device-warning-rules', [DeviceWarningController::class, 'updateRule']); //预警规则
         Route::get('device-warning-logs', [DeviceWarningController::class, 'warningLog']);
+        Route::get('device-warning-nums', [DeviceWarningController::class, 'warningLogNum']);
 
         //友情链接
         Route::apiResource('friend-links', FriendLinkController::class)->only(['index'])->names('friend_links');