CN-121979347-A - Constant temperature and humidity control system between intelligent airing blanks

CN121979347ACN 121979347 ACN121979347 ACN 121979347ACN-121979347-A

Abstract

The invention relates to the technical field of intelligent control, in particular to a constant temperature and constant humidity control system between intelligent airing blanks, which solves the technical problems of uneven drying rate and unstable overall drying quality in the airing process caused by neglecting space temperature and humidity distribution difference and dynamic change of the moisture content of blanks in the prior art. The system is used for acquiring environment data, blank state data and equipment working condition data of a plurality of monitoring areas in a blank airing room, determining regulation and control demand intensity of each monitoring area according to the environment data of each monitoring area, predicting predicted environment data of each monitoring area at future time according to the environment data and blank state data of each monitoring area, determining control parameters of each monitoring area according to the regulation and control demand intensity, the environment data and the predicted environment data, and driving environment regulating equipment of each monitoring area to operate according to the control parameters and the equipment working condition data.

Inventors

ZHANG QIANG
HUANG SHUHUA
HAN XU

Assignees

河北东风养殖有限公司

Dates

Publication Date: 20260505
Application Date: 20260407

Claims (10)

1. Constant temperature and humidity control system between intelligent airing base, its characterized in that includes: the data acquisition module is used for acquiring environment data, blank state data and equipment working condition data of a plurality of monitoring areas in the blank airing room; the demand assessment module is connected with the data acquisition module and is used for determining the regulation and control demand intensity of each monitoring area according to the environmental data of each monitoring area, wherein the regulation and control demand intensity is used for quantifying the demand degree of the monitoring area on the regulation and control of the temperature and the humidity; the state prediction module is connected with the data acquisition module and used for predicting the predicted environment data of each monitoring area at the future moment according to the environment data and the blank state data of each monitoring area; The control generation module is connected with the demand evaluation module and the state prediction module and is used for determining the control parameters of each monitoring area according to the regulation and control demand intensity, the environment data and the predicted environment data; And the control execution module is connected with the data acquisition module and the control generation module and is used for driving the environment regulating equipment of each monitoring area to operate according to the control parameters and the equipment working condition data.
2. The constant temperature and humidity control system according to claim 1, wherein the demand assessment module is specifically configured to: Determining the deviation degree of the environmental state according to the deviation between the environmental data of each monitoring area and a preset environmental value; according to the environmental state deviation degree of each monitoring area at a plurality of moments, analyzing the statistical dispersion degree of the environmental state deviation degree; The method comprises the steps of constructing a historical environmental data sequence according to time sequence arrangement of environmental data of each monitoring area at a plurality of moments, and extracting fluctuation characteristics of the historical environmental data sequence; and combining the statistical dispersion of the environmental state deviation degree of each monitoring area and the fluctuation characteristics of the historical environmental data sequence to determine the regulation and control demand intensity.
3. The constant temperature and humidity control system according to claim 2, wherein the fluctuation features of the historical environmental data sequence comprise unordered fluctuation degrees, long-term change directions and short-term random fluctuation of environmental data, and the demand assessment module is specifically configured to: the entropy value of the historical environmental data sequence is counted, and the entropy value is used for representing the unordered fluctuation degree of the environmental data of the monitoring area; and carrying out time sequence decomposition on the historical environment data sequence to obtain a trend component for representing the long-term change direction and a residual component for representing short-term random fluctuation.
4. The constant temperature and humidity control system according to claim 1, wherein the state prediction module is specifically configured to: Inputting the environmental data and the blank state data of each monitoring area into a preset time sequence prediction model; And outputting a predicted temperature value and a predicted humidity value of at least one moment in the future through the time sequence prediction model.
5. The constant temperature and humidity control system according to claim 1, wherein the control generation module is specifically configured to: determining an optimal regulation coefficient of each monitoring area according to the regulation demand intensity of the plurality of monitoring areas; and determining the control parameters of each monitoring area according to the optimized adjustment coefficient of each monitoring area and combining the environmental data and the predicted environmental data.
6. The constant temperature and humidity control system according to claim 5, wherein the control generation module is connected to the data acquisition module and further configured to: determining a dynamic compensation coefficient according to the difference value between the blank water content and the target water content in the blank state data; and correcting the part related to humidity regulation in the control parameter according to the dynamic compensation coefficient.
7. The constant temperature and humidity control system according to claim 1, wherein the control execution module is specifically configured to: Converting the control parameter into a driving signal corresponding to an environment adjusting device, wherein the environment adjusting device comprises at least one of a heating device, a humidifying device and a ventilating device; and according to the equipment operation state in the equipment working condition data, carrying out safety verification and conflict arbitration on the driving signal.
8. The constant temperature and humidity control system according to claim 7, wherein the control execution module is specifically configured to: checking whether the driving signal exceeds a safe operation threshold value of the corresponding environment-adjusting device; When a plurality of driving signals have execution logic conflict, selecting a signal with the highest priority to execute according to a preset arbitration rule, wherein the arbitration rule at least considers one factor of equipment energy consumption, regulation and control demand intensity or equipment accumulated operation duration.
9. The constant temperature and humidity control system of claim 1 wherein the data acquisition module comprises: The distributed environment sensing units are arranged in the airing room in a matrix form and are used for periodically collecting temperature, humidity and wind speed data of each monitoring area; The green body state sensing unit is used for periodically collecting the water content and surface temperature data of at least one representative green body through the composite sensing assembly; the device parameter acquisition unit is used for reading the operating power, the output quantity and the rotating speed working condition data of the environment adjusting device in real time.
10. The constant temperature and humidity control system of claim 1, wherein the system further comprises: and the communication and storage module is connected with each functional module and used for transmitting data among the modules and storing historical environment data, historical blank state data and historical control parameters.

Description

Constant temperature and humidity control system between intelligent airing blanks Technical Field The invention relates to the technical field of intelligent control, in particular to a constant temperature and constant humidity control system for an intelligent blank drying room. Background In poultry food processing, a blank airing link after thawing frozen duck blanks is a key process for guaranteeing meat taste and food safety, and is characterized in that the inside and surface moisture of the duck blanks are slowly and synchronously evaporated through a stable and uniform temperature and humidity environment so as to avoid firewood or microorganism breeding of meat. At present, the link generally adopts a single-point monitoring and conventional Proportional Integral Derivative (PID) feedback control mode based on a fixed threshold value, and the start and stop of equipment are triggered by a limited sensor arranged in the middle of a blank airing room. However, in the prior thawing link, the thawing mode (natural placement, simple refrigeration or running water thawing) commonly adopted in the industry is difficult to completely ensure uniform thawing of the blank, the problems of overquick surface thawing, frozen core storage inside or unbalanced water distribution and the like are easy to occur, and the dilemma is further exacerbated by the temperature and humidity control mode of the subsequent blank airing link, namely, on one hand, the difference of the distribution of complicated space temperature and humidity fields, which is formed by air flow, equipment layout and blank stacking inside the blank airing link, cannot be fully considered, the initial state difference of the blank caused by uneven thawing in the prior stage cannot be compensated, and the blank is dried more unevenly. On the other hand, the development of the self water content of the green body along with the drying process is not considered, the green body at different drying stages has different requirements on temperature and humidity, the high humidity and slow drying are needed at the initial stage to avoid the cracking of the epidermis, the low humidity and fast drying are needed at the later stage to reach the target water content, the setting of the fixed threshold value cannot be adapted to the requirement, the problems of initial cracking and exceeding of the later water content can be caused, the product loss rate is high, the quality consistency is poor, and the strict requirement of large-scale production is difficult to meet. Disclosure of Invention In order to solve the technical problems of uneven drying rate and unstable overall drying quality in the blank airing process caused by neglecting space temperature and humidity distribution difference and dynamic change of the water content of the blank in the prior art, the invention aims to provide an intelligent constant temperature and humidity control system between the blanks, and the adopted technical scheme is as follows: The constant temperature and constant humidity control system comprises a data acquisition module, a demand evaluation module, a state prediction module, a control execution module and a control execution module, wherein the data acquisition module is used for acquiring environment data, blank state data and equipment working condition data of a plurality of monitoring areas in a blank airing room, the demand evaluation module is connected with the data acquisition module and used for determining the regulation and control demand intensity of each monitoring area according to the environment data of each monitoring area, the regulation and control demand intensity is used for quantifying the regulation and control demand intensity of the monitoring area on the temperature and humidity, the state prediction module is connected with the data acquisition module and used for predicting the predicted environment data of each monitoring area at the future time according to the environment data and blank state data of each monitoring area, the control generation module is connected with the demand evaluation module and the state prediction module and used for determining the control parameter of each monitoring area according to the regulation and control demand intensity, the environment data and the equipment working condition data, and the control execution module is connected with the data acquisition module and the control generation module and used for driving the environment regulation equipment of each monitoring area to operate. Based on the technical scheme, in the intelligent constant temperature and humidity control system between the blanks, the environment of multiple monitoring areas, blanks and equipment data among the blanks are comprehensively acquired through the cooperative operation of the data acquisition, the demand evaluation, the state prediction, the control generation and the control execution module, the accurate judgmen