Electromechanical system mathematical model identification method and system
A mathematical model and electromechanical system technology, applied in neural learning methods, character and pattern recognition, biological neural network models, etc., can solve single problems, achieve accurate modeling, strong versatility, and ensure flexibility
Active Publication Date: 2020-09-22
NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE
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[0010]
In order to establish an accurate mathematical model of the electromechanical system of the astronomical telescope, reduce the complexity of the system identification instrument, reduce the requirements for on-site users, improve the versatility of the instrument and overcome the problem of single mathematical model form, the present invention proposes an embedded terminal and a cloud server host Combined mathematical model identification method for electromechanical system of astronomical telescope, and provides a mathematical model identification system for electromechanical system of astronomical telescope
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[0065] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0066] This embodiment provides a system for identifying a mathematical model of an electromechanical system. This embodiment uses an identification system for a mathematical model of an electromechanical system of an astronomical telescope as an example for illustration.
[0067] like figure 1 As shown, the electromechanical system mathematical model identification system of this embodiment includes an embedded terminal and a cloud server host. The embedded terminal is equipped with excitation and output data collection for the identified system, and has signal input and output interfaces, human-computer interaction interfaces, communication interfaces and power interfaces. The embedded terminal includes a module developed based on FPGA, which mainly completes the excitation and data acquisition of the system. Embedded terminals themselves do not have comp...
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The invention discloses an electromechanical system mathematical model identification method and system. The method comprises the following steps: acquiring input and output data of an electromechanical system of an identified object; grouping the data into training set data and test set data; using training set data for mathematical model identification, adopting different algorithms to train thetraining set data to obtain a plurality of mathematical models, using test set data for testing and evaluating the mathematical models, and selecting optimal mathematical models under different requirements. The system comprises an embedded terminal and a cloud server host. According to the invention, the hardware function of the identification system is simplified, and the system has configurability through the FPGA module. In addition, a plurality of algorithms are adopted in the cloud server host to identify the mathematical model, and the optimal mathematical model under different requirements is selected through model evaluation for a user to select. According to the invention, the cost of the mathematical model identification system of the astronomical telescope electromechanical system can be greatly saved, the requirement on a user is reduced, and the model identification precision is improved.
Description
technical field [0001] The invention relates to the field of identification of electromechanical systems of astronomical telescopes, in particular to a system and method for identifying mathematical models of electromechanical systems of astronomical telescopes based on embedded terminals and cloud server hosts. Background technique [0002] With the development of astronomical technology, higher and higher requirements are put forward for the light-gathering ability and resolution of astronomical telescopes. In order to meet the needs of astronomical observation, the operation of the telescope is challenged, mainly in the following three aspects: (1) The aperture of the telescope continues to increase, resulting in an increase in the moment of inertia of the electromechanical system of the telescope, which will produce a large time lag. (2) When astronomical telescopes track stars, their operation precision is very high, usually reaching arcsecond or sub-arcsecond level. ...
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IPC IPC(8): G06K9/62G06N3/04G06N3/08
CPCG06N3/08G06N3/084G06N3/045G06F18/214G06F18/24
Inventor 杜福嘉孙浩添
Owner NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE