BPA.SingleDevice/BPA.Model/GlobalData.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Collections.Concurrent;

namespace BPA.Model
{
    public class GlobalData
    {
        public static ConcurrentQueue<GoodsModel> GoodsModels { get; set; } = new ConcurrentQueue<GoodsModel>();
    }
}