相机后台服务接口加入拍照互斥，因为拍照过程中相机设备是需要独占使用的

camera-capture.service/rpc_handler.go

@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"strconv"
 	"strings"
+	"sync"
 	"time"
 
 	"hnyfkj.com.cn/rtu/linux/baseapp"
@@ -14,6 +15,8 @@ import (
 	"hnyfkj.com.cn/rtu/linux/utils/jsonrpc2"
 )
 
+var cameraMutex sync.Mutex
+
 func getGigeCameraPower(ctx context.Context, req *jsonrpc2.Request) *jsonrpc2.Response {
 	on, err := camera.GetGigeCameraPowerCtrl()
 	if err != nil {
@@ -98,6 +101,8 @@ func getSupportedCameraCount(ctx context.Context, req *jsonrpc2.Request) *jsonrp
 	}
 
 	var count int
+	cameraMutex.Lock()
+	defer cameraMutex.Unlock()
 
 	switch strings.ToLower(cameraType) {
 	case "all":
@@ -166,6 +171,9 @@ func takePhoto(ctx context.Context, req *jsonrpc2.Request) *jsonrpc2.Response {
 		timeout = 300
 	}
 
+	cameraMutex.Lock()
+	defer cameraMutex.Unlock()
+
 	baseapp.Logger.Infof("开始拍照, 请稍微...")
 	var resp *jsonrpc2.Response