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Multi-target temperature optimization control method for intelligent retail machine

An optimized control and multi-objective technology, applied in temperature control, non-electric variable control, control/regulation system, etc., can solve the problems of food preservation, energy saving, and economic benefit goals that cannot be taken into account, so as to reduce energy consumption and maximize comprehensive benefits Excellent, improve the effect of economic benefits

Active Publication Date: 2021-08-31
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0005] In order to overcome the deficiencies of existing technologies and solve the situation that food preservation, energy saving, and economic benefits cannot be balanced during the operation of intelligent retail machines, a multi-objective temperature optimization control method for intelligent retail equipment is proposed

Method used

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  • Multi-target temperature optimization control method for intelligent retail machine
  • Multi-target temperature optimization control method for intelligent retail machine
  • Multi-target temperature optimization control method for intelligent retail machine

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Embodiment Construction

[0023] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0024] refer to figure 1 , a multi-objective temperature optimization control method for an intelligent retail machine, said method comprising the steps of:

[0025] (1). According to the two decision variables of external environment temperature and equipment internal setting temperature, a multi-objective suitable temperature model is constructed under the constraint conditions, and a suitable temperature solution set is obtained;

[0026] Multi-objective optimum temperature model:

[0027]

[0028] The n in the formula refers to dividing the day from 9 o'clock to 20 o'clock into n identical time blocks, and different k values ​​represent the subscripts of different time blocks; Tin(k) in the formula is the time block Tmin is the lower limit of food preservation temperature, Tmax is the upper limit of food preservation temperature,...

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Abstract

A multi-target temperature optimization control method of an intelligent retail machine comprises the following steps: (1) according to two decision variables of external environment temperature and equipment internal set temperature, constructing a multi-target suitable temperature model when constraint conditions are satisfied, and obtaining a suitable temperature solution set; (2) determining a multi-target optimal temperature solution aiming at the commodity fresh-keeping duration, the equipment energy consumption and the sales volume, extracting optimal internal set temperature values under different environment temperatures in the optimal temperature solutions, and performing closed-loop stable control through a compressor. According to the intelligent retail machine, compatibility control is carried out on three goals of food preservation, equipment energy conservation and economic benefit which need to be met in the operation process of the intelligent retail machine, the food preservation requirement is met; meanwhile, energy consumption is reduced, the economic benefit is improved, and the final goal of optimal comprehensive benefit is achieved.

Description

technical field [0001] The invention belongs to the field of unmanned retail, and in particular relates to a multi-objective temperature optimization control method of an intelligent retail machine. [0002] technical background [0003] A smart vending machine is an unsupervised self-service purchase of goods. The goods are temporarily stored in the smart vending machine provided by the supplier. The smart vending machine needs to provide a suitable environment for the goods to meet the storage requirements, especially for food. Commodities have high fresh-keeping requirements. Merchants not only need to extend the fresh-keeping time as long as possible, but also hope to save energy consumption of retail machines as much as possible and reduce operation and maintenance costs to achieve the goal of improving economic benefits. However, the existing smart retail machines It is difficult for temperature control methods to meet this multi-objective requirement. [0004] Since t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/20
CPCG05D23/20
Inventor 郑潇杨一帆何德峰余世明姚奕张文聪
Owner ZHEJIANG UNIV OF TECH
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