diff --git a/app/Http/Controllers/Api/Hr/SignController.php b/app/Http/Controllers/Api/Hr/SignController.php
index a5351cf..411e303 100644
--- a/app/Http/Controllers/Api/Hr/SignController.php
+++ b/app/Http/Controllers/Api/Hr/SignController.php
@@ -15,6 +15,7 @@ use Illuminate\Http\Response;
 use Illuminate\Support\Facades\DB;
 use Illuminate\Validation\Rule;
 use Slowlyo\OwlAdmin\Services\AdminSettingService;
+use coordtransform\Helper as CoordinateHelper;
 
 /**
  * 考勤打卡
@@ -80,12 +81,11 @@ class SignController extends Controller
             $lon = $request->input('lon');
             $lat = $request->input('lat');
             // 切换坐标系
-            // $locationType = $request->input('location_type', 'wgs84');
-            // if ($locationType == 'wgs84') {
-            //     $res = wgs84ToGcj02($lat, $lon);
-            //     $lon = $res['lon'];
-            //     $lat = $res['lat'];
-            // }
+            $locationType = $request->input('location_type', 'wgs84');
+            if ($locationType == 'wgs84') {
+                list($lon, $lat) = CoordinateHelper::wgs84togcj02($lon, $lat);
+                list($lon, $lat) = CoordinateHelper::gcj02tobd09($lon, $lat);
+            }
             // 计算距离
             $distance = $service->haversineDistance(
                 $lat,
@@ -142,12 +142,11 @@ class SignController extends Controller
             $lon = $request->input('position.lon');
             $lat = $request->input('position.lat');
             // 切换坐标系
-            // $locationType = $request->input('position.location_type', 'wgs84');
-            // if ($locationType == 'wgs84') {
-            //     $res = wgs84ToGcj02($lat, $lon);
-            //     $lon = $res['lon'];
-            //     $lat = $res['lat'];
-            // }
+            $locationType = $request->input('location_type', 'wgs84');
+            if ($locationType == 'wgs84') {
+                list($lon, $lat) = CoordinateHelper::wgs84togcj02($lon, $lat);
+                list($lon, $lat) = CoordinateHelper::gcj02tobd09($lon, $lat);
+            }
             $distance = $service->haversineDistance(
                 $lat,
                 $lon,
diff --git a/bootstrap/helpers.php b/bootstrap/helpers.php
index 2a56744..97016f2 100644
--- a/bootstrap/helpers.php
+++ b/bootstrap/helpers.php
@@ -59,31 +59,3 @@ function delta($lat, $lon)
 
     return ['lat' => $dLat, 'lon' => $dLon];
 }
-
-function wgs84ToGcj02($lat, $lon)
-{
-    if (outOfChina($lat, $lon)) {
-        return ['lat' => $lat, 'lon' => $lon];
-    }
-    $d = delta($lat, $lon);
-
-    return ['lat' => $lat + $d['lat'], 'lon' => $lon + $d['lon']];
-}
-
-function gcj02ToWgs84($lat, $lon)
-{
-    if (outOfChina($lat, $lon)) {
-        return ['lat' => $lat, 'lon' => $lon];
-    }
-    $d = delta($lat, $lon);
-
-    return ['lat' => $lat - $d['lat'], 'lon' => $lon - $d['lon']];
-}
-
-function outOfChina($lat, $lon)
-{
-    return ($lon < 72.004 || $lon > 137.8347) || ($lat < 0.8293 || $lat > 55.8271);
-}
-// function pi() {
-//     return 3.14159265358979323846;
-// }
diff --git a/composer.json b/composer.json
index 8522d13..9424754 100644
--- a/composer.json
+++ b/composer.json
@@ -7,6 +7,7 @@
     "require": {
         "php": "^8.1",
         "alphasnow/aliyun-oss-laravel": "^4.7",
+        "billy-poon/coordtransform": "^1.0",
         "guzzlehttp/guzzle": "^7.2",
         "laravel/framework": "^10.10",
         "laravel/sanctum": "^3.3",
diff --git a/composer.lock b/composer.lock
index 61aa110..6e389c5 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "e50204833e31b832f0bb8b3a5438e5ab",
+    "content-hash": "0d1bf59d3ee7e094a8d73020bc09799d",
     "packages": [
         {
             "name": "aliyuncs/oss-sdk-php",
@@ -141,6 +141,61 @@
             ],
             "time": "2022-12-03T14:27:07+00:00"
         },
+        {
+            "name": "billy-poon/coordtransform",
+            "version": "1.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/billy-poon/coordtransform.git",
+                "reference": "2f4454dae3a3515e33bbe3885490581f0ce29e6a"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/billy-poon/coordtransform/zipball/2f4454dae3a3515e33bbe3885490581f0ce29e6a",
+                "reference": "2f4454dae3a3515e33bbe3885490581f0ce29e6a",
+                "shasum": "",
+                "mirrors": [
+                    {
+                        "url": "https://mirrors.aliyun.com/composer/dists/%package%/%reference%.%type%",
+                        "preferred": true
+                    }
+                ]
+            },
+            "require": {
+                "php": ">=5.4"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "coordtransform\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Billy Poon",
+                    "email": "panqbi@yeah.net",
+                    "homepage": "https://github.com/billy-poon"
+                }
+            ],
+            "description": "一个提供了百度坐标（BD09）、国测局坐标（火星坐标，GCJ02）、和WGS84坐标系之间的转换的工具模块。移植自：https://github.com/wandergis/coordtransform/",
+            "homepage": "https://github.com/billy-poon/coordtransform",
+            "keywords": [
+                "bd09",
+                "coordinate",
+                "gcj02",
+                "transform",
+                "wgs84"
+            ],
+            "support": {
+                "issues": "https://github.com/billy-poon/coordtransform/issues",
+                "source": "https://github.com/billy-poon/coordtransform/tree/master"
+            },
+            "time": "2018-08-21T17:33:38+00:00"
+        },
         {
             "name": "brick/math",
             "version": "0.11.0",
diff --git a/tests/Feature/ExampleTest.php b/tests/Feature/ExampleTest.php
index b700079..b165af3 100644
--- a/tests/Feature/ExampleTest.php
+++ b/tests/Feature/ExampleTest.php
@@ -3,8 +3,13 @@
 namespace Tests\Feature;
 
 // use Illuminate\Foundation\Testing\RefreshDatabase;
+
+use App\Admin\Services\EmployeeSignService;
+use App\Admin\Services\StoreService;
 use Tests\TestCase;
 
+use coordtransform\Helper as CoordinateHelper;
+
 class ExampleTest extends TestCase
 {
     /**
@@ -12,6 +17,20 @@ class ExampleTest extends TestCase
      */
     public function test_the_application_returns_a_successful_response(): void
     {
-        dump(wgs84ToGcj02('29.421605', '106.524698'));
+        // GPS 坐标
+        $lon = '106.524698';
+        $lat = '29.421605';
+
+        // 百度接口转换结果
+        // $lon = '106.53499612144785';
+        // $lat = '29.424741925277104';
+
+        list($lon, $lat) = CoordinateHelper::wgs84togcj02($lon, $lat);
+        list($lon, $lat) = CoordinateHelper::gcj02tobd09($lon, $lat);
+
+        // BD-09 坐标
+        $lon2 = '106.534967';
+        $lat2 = '29.424352';
+        dump(EmployeeSignService::make()->haversineDistance($lat, $lon, $lat2, $lon2));
     }
 }