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Author

Cong Lin

Bio: Cong Lin is an academic researcher. The author has contributed to research in topics: Temperature gradient & Rectification. The author has an hindex of 1, co-authored 1 publications receiving 4 citations.

Papers
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Patent
20 May 2015
TL;DR: In this article, an internal thermal coupling rectification control device based on temperature wave model prediction control is proposed, which consists of an intelligent meter, a control station, a data storage device and an upper computer.
Abstract: The invention relates to an internal thermal coupling rectification control device based on temperature wave model prediction control. The internal thermal coupling rectification control device comprises an internal thermal coupling rectification tower, an intelligent meter, a control station, a data storage device and an upper computer, wherein the intelligent meter is connected with the internal thermal coupling rectification tower; the control station is connected with the internal thermal coupling rectification tower; the data storage device is connected with the intelligent meter and the control station; the upper computer is connected with the data storage device and the control station and comprises a concentration gradient description module, a temperature gradient description module, a temperature wave static description module, a temperature wave dynamic description module, a set value conversion module and a control parallel solving module. A nonlinear control scheme of the internal thermal coupling rectification control device is constructed on the basis of a high-precision nonlinear temperature wave model, so that the interference can be suppressed in time; the coupling problem is better processed, and the change of a set value can be quickly and accurately tracked; due to the temperature with high measurement precision and small measurement time delay as a main control measure, the control speed and the control performance are greatly improved.

4 citations


Cited by
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Patent
14 Jun 2019
TL;DR: In this article, the authors proposed a dynamic early warning method for an environment temperature of a refrigerator car, which comprises the steps of setting a temperature dynamic early-warning system, acquiring temperature data of a carriage according to a preset time interval and sending the temperature data to a control center.
Abstract: The invention provides a dynamic early warning method for an environment temperature of a refrigerator car. The dynamic early warning method comprises the steps of S1, setting a temperature dynamic early warning system; S2, acquiring temperature data of a carriage according to a preset time interval and sending the temperature data to a control center; S3, forming an environment temperature matrixby the control center; S4, calculating a predicted environment temperature; S5, calculating an environment temperature change rate; S6, calculating an upper limit value and a lower limit value of anenvironment temperature dynamic zero point; S7, setting an expert early warning domain; S8, dynamically updating the expert early warning domain; S9, setting a low-temperature alarm threshold, a normal threshold and a high-temperature alarm threshold; S10, judging whether abnormal temperature early warning is sent or not, and when the abnormal temperature early warning needs to be sent out, sending an alarm instruction to a corresponding vehicle-mounted end by the control center; and S11, giving an alarm by an alarm device. According to the dynamic early warning method for the environment temperature of the refrigerator car, the perception and monitoring of remote environment information of the refrigerator car are enhanced, and safe, efficient and intelligent refrigerated logistics is realized.
Patent
14 Aug 2020
TL;DR: In this article, a concentration soft measurement method for an isolation wall rectifying tower based on nonlinear filtering is proposed. But the method is not suitable for the case of noisy data.
Abstract: The invention relates to a concentration soft measurement method for an isolation wall rectifying tower based on nonlinear filtering. Nonlinear unscented Kalman filtering is adopted to perform error correction on a concentration soft measurement method integrated with a data driving model. When a concentration detector detects once every two hours or more, an error corrector performs error correction by adopting nonlinear unscented Kalman filtering; the error corrector can also adopt improved non-linear unscented Kalman filtering to perform error correction, wherein the improvement lies in that when error correction is carried out on nonlinear unscented Kalman filtering, in the case that a covariance P matrix of a corrected concentration point k-1 at the last moment is not a positive definite matrix, a nearest symmetric positive definite matrix P~ on an F-norm of the covariance P matrix is used for replacing P , and Cholesky decomposition is carried out. Accordingto the invention, the problem that oscillation exists due to the fact that the concentration detection interval is increased when extended Kalman filtering is adopted is solved, and rapid error-freecontrol over the isolation wall rectifying tower is achieved.
Patent
21 Aug 2018
TL;DR: In this article, a control method of the connection structure multi-intelligent-agent coordination and consistency is proposed, which comprises the following steps of 1, determining a topologystructure of multiple intelligent agents and obtaining an information transmission relation among the intelligent agents; 2, obtaining an adjacency matrix and an accessibility matrix respectively and determining the weight information of information among the agents; 3, solving a certain optimization function, obtaining a control protocol, based on a rolling optimization strategy, updating a control law of each intelligent agent in a sampling cycle in sequence and starting new circulation in
Abstract: The invention provides a control method of the connection structure multi-intelligent-agent coordination and consistency. The control method comprises the following steps of 1, determining a topologystructure of multiple intelligent agents and obtaining an information transmission relation among the intelligent agents; 2, obtaining an adjacency matrix and an accessibility matrix respectively anddetermining the weight information of information among the intelligent agents; 3, solving a certain optimization function, obtaining a control protocol, based on a rolling optimization strategy, updating a control law of each intelligent agent in a sampling cycle in sequence and starting new circulation in the next cycle, wherein the control strategy is a multi-speed control strategy in essence.The control method can be widely applied to control of multi-intelligent-agent coordination and consistency.
Patent
30 Mar 2018
TL;DR: In this article, an internal thermal coupling air separation column control device based on a concentration curve optimization algorithm is presented, which consists of an intelligent instrument which is directly connected with an internal TCA column, a controller and a DCS system, including an upper computer, a control station, a storage device, a field bus and a data interface.
Abstract: The invention discloses an internal thermal coupling air separation column control device based on a concentration curve optimization algorithm. The device comprises an intelligent instrument which isdirectly connected with an internal thermal coupling air separation column, a controller and a DCS system. The DCS system comprises an upper computer, a control station, a storage device, a field busand a data interface. The upper computer is used for realizing real-time optimization of the control parameter and comprises a concentration curve description module, a set value conversion module and a control parameter real-time optimization module and transmits the optimized control parameter to the control station through the field bus. The control station adjusts the controller through the data interface connected with the field bus according to the obtained control parameter. The controller realizes direct control and adjustment of the internal thermal coupling air separation column. The strong nonlinear characteristics of the internal thermal coupling air separation column can be greatly processed so that the device has efficient online operation speed and excellent energy saving effect and has great servo tracking control effect and interference suppression effect.