public void SetGioPosition(int uid, double latitude, double longitude)
        {
            if (_lock != 0)
            {
                return;
            }
            _lock = 1;
            GoPo.Models.webApi.GioPosition gioPo = new GoPo.Models.webApi.GioPosition();
            gioPo.latitude  = latitude;
            gioPo.longitude = longitude;
            gioPo.recoDt    = DateTime.Now;
            gioPo.sid       = 1;
            gioPo.uid       = uid;
            var httpWebResp = HttpWebRequestHelper.WebPost(GoPo.Constants.URL_Post_GioPosition, gioPo);

            _lock = 0;
        }