Research and optimization of feed preparation system based on neural network PID algorithm

doi:10.6048/j.issn.1001-4330.2023.04.026

Xinjiang Agricultural Sciences ›› 2023, Vol. 60 ›› Issue (4): 1003-1010.DOI: 10.6048/j.issn.1001-4330.2023.04.026

• Prataculture·Plant Protection·Animal Husbandry Veterinarian·Agricultural Eeconomy • Previous Articles Next Articles

Research and optimization of feed preparation system based on neural network PID algorithm

FANG Jie¹(), ZHANG Jie², MA Juan², TIAN Xiang², YU Xiuzhen², FENG Bin²()

1. College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi 830052, China
2. Institute of Agricultural Mechanization, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China

Received:2022-08-11 Online:2023-04-20 Published:2023-05-06
Correspondence author: FENG Bin (1968-), male, born in Shaanxi, professor, research direction: Beef cattle breeding facilities, equipment and intelligent technology, (E-mail)xjwsfb@sina.com
Supported by:
National Beef Cattle and Yak Industrial Technology System Project(CARS-37)

基于神经网络PID算法的优化饲料配制系统

方杰¹(), 张杰², 马娟², 田翔², 于秀针², 冯斌²()

1.新疆农业大学机电工程学院,乌鲁木齐 830000
2.新疆农业科学院农业机械化研究所,乌鲁木齐 830000

通讯作者: 冯斌(1968-),男,陕西人,研究员,硕士生导师,研究方向为智能化养殖,(E-mail)xjwsfb@sina.com
作者简介:方杰(1996-),男,安徽人,硕士研究生,研究方向为智能化养殖,(E-mail)fang5431_hf@qq.com
基金资助:
财政部和农业农村部:国家现代农业产业技术体系(CARS-37)

Abstract

Abstract:

【Objective】To design a feed preparation control system in view of the operation requirements of feed weighing and batching in small and medium-sized pastures and the weighing error of feed dynamic weighing by using the neural network PID optimization algorithm to improve the batching accuracy. 【Methods】Siemens S-200 smart PLC was taken as the main control, the feed preparation control system was designed, which led to summary that the control strategy of the existing conventional PID algorithm had the defects of large overshoot and slow convergence, and the local minimization problem was easy to occur in the gradient descent process of BP neural network. A BP neural network PID algorithm with additional momentum term was proposed to reduce the weighing error. 【Results】The BP neural network PID algorithm model based on the gradient descent method of momentum term solved the problem of parameter self-learning tuning, and had more efficient performance in convergence speed and improving overshoot.【Conclusion】The actual verification shows that the batching error is effectively controlled.

Key words: automatic batching; PLC control; momentum factor; BP neural network PID algorithm

摘要：

【目的】设计饲料配制控制系统,并采用神经网络PID优化算法实现对配料精度的提高。【方法】以西门子S-200 smart型PLC为主控设计饲料配制控制系统,针对现有常规PID算法的控制策略存在超调大、收敛慢等缺陷和BP神经网络梯度下降过程容易出现局部最小化问题,提出以附加动量项的BP神经网络PID算法实现称重误差的降低。【结果】基于动量项的梯度下降法建立的BP神经网络PID算法模型解决了参数自学习整定问题,在响应速度上该算法与PID算法对比为3:1,试验后平均精度99.6%。并在收敛速度和改善超调现象具有更高效的表现。【结论】配料系统经算法优化后误差得到有效控制。

关键词: 自动配料, PLC控制, 动量因子, BP神经网络PID算法

CLC Number:

FANG Jie, ZHANG Jie, MA Juan, TIAN Xiang, YU Xiuzhen, FENG Bin. Research and optimization of feed preparation system based on neural network PID algorithm[J]. Xinjiang Agricultural Sciences, 2023, 60(4): 1003-1010.

方杰, 张杰, 马娟, 田翔, 于秀针, 冯斌. 基于神经网络PID算法的优化饲料配制系统[J]. 新疆农业科学, 2023, 60(4): 1003-1010.

Figures/Tables 10

References 20

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序号 Order number	精料重量 Weight of concentrate (kg)		粗料重量 Weight of coarse material (kg)
序号 Order number	优化前 Before optimization	优化后 After optimization	优化前 Before optimization	优化后 After optimization
1	401.66	401.60	400.01	400.60
2	402.38	400.48	401.90	400.17
3	402.46	400.42	401.70	399.79
4	401.96	401.64	399.05	400.75
5	405.45	401.62	401.84	400.45
6	400.68	400.41	401.08	399.71
7	405.69	401.00	402.96	399.86
8	401.68	401.76	402.62	401.09
9	401.66	401.60	400.71	400.01

序号 Order number	精料重量 Weight of concentrate (kg)		粗料重量 Weight of coarse material (kg)
序号 Order number	优化前 Before optimization	优化后 After optimization	优化前 Before optimization	优化后 After optimization
1	401.66	401.60	400.01	400.60
2	402.38	400.48	401.90	400.17
3	402.46	400.42	401.70	399.79
4	401.96	401.64	399.05	400.75
5	405.45	401.62	401.84	400.45
6	400.68	400.41	401.08	399.71
7	405.69	401.00	402.96	399.86
8	401.68	401.76	402.62	401.09
9	401.66	401.60	400.71	400.01

序号 Order number	精料 Spermatic dapartment (kg)	青储 Ensilage (kg)	苜蓿秸秆 Alfalfa (kg)	总计 Total (kg)	总偏差 Total departure (kg)
1	201.43	401.27	600.78	1 203.48	4.94
2	200.98	402.55	599.11	1 201.94	4.42
3	200.46	403.01	600.14	1 203.61	5.08

序号 Order number	精料 Spermatic dapartment (kg)	青储 Ensilage (kg)	苜蓿秸秆 Alfalfa (kg)	总计 Total (kg)	总偏差 Total departure (kg)
1	201.43	401.27	600.78	1 203.48	4.94
2	200.98	402.55	599.11	1 201.94	4.42
3	200.46	403.01	600.14	1 203.61	5.08

Research and optimization of feed preparation system based on neural network PID algorithm

基于神经网络PID算法的优化饲料配制系统

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