Chemical experiment system and chemical experiment scoring method
By using the long short-term memory network model and data acquisition equipment to automatically score chemical experiments, the problems of low efficiency and unreliability in chemical experiment scoring were solved, and efficient and reliable experimenter evaluation was achieved.
Patent Information
- Application Number
- CN202510868951.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-26
- Publication Date
- 2025-09-26
AI Technical Summary
Existing chemical experiment scoring methods are inefficient and unreliable, mainly due to human factors that lead to unreliable evaluation results.
A preset performance evaluation model based on long short-term memory network is used to obtain equipment availability. Combined with data acquisition and processing equipment, the experimenter's operations and results are automatically scored to generate an overall score.
It improves the work efficiency and result reliability of chemical experiment evaluation and reduces the influence of human factors.
Smart Images
Figure CN120706713A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of chemical experiment, in particular to a chemical experiment system and a chemical experiment scoring method. Background Art
[0002] Chemical engineering experiments are the core link in the teaching and scientific research of chemical engineering and technology majors. Experimenters can verify theories, master skills and cultivate the ability to solve practical problems through experimental operations. Therefore, chemical engineering experiments are used to assess the degree to which experimenters have mastered chemical knowledge.
[0003] The existing method for grading chemical experimenters' performance is for an examiner to score them based on their chemical experiment procedures and results to assess their understanding of chemical knowledge. However, this method is inefficient, as each examiner can only supervise a limited number of experimenters simultaneously. Furthermore, due to human factors, the reliability of the chemical experiment evaluation cannot be guaranteed. Summary of the Invention
[0004] The purpose of the present invention is to provide a chemical experiment system and a chemical experiment scoring method for improving the work efficiency of chemical experiment evaluation for laboratory workers and ensuring the reliability of evaluation results.
[0005] Specifically, in a first aspect, the present invention provides a scoring method for a chemical engineering experiment, comprising: Obtaining historical status data of experimental equipment involved in the chemical experiment, and obtaining equipment availability of the chemical experiment based on the historical status data; When the availability of the equipment meets the preset availability conditions, obtaining experimental result data of the chemical experiment and experimental operation data of the experimenter during the experiment; Obtaining standard result data of the chemical experiment, and evaluating the experimental result data according to the standard result data to obtain the experimental result score of the experimenter; Acquire multiple experimental sub-operations according to the experimental operation data, and obtain a standard sub-operation for each of the experimental sub-operations; Obtaining the sub-operation score of the corresponding experimental sub-operation according to each of the standard sub-operations, and fusing the sub-operation scores to obtain the experimental operation score of the experimenter; The total chemical experiment score of the experimenter is obtained according to the experimental result score and the experimental operation score.
[0006] Furthermore, the step of obtaining the equipment availability of the chemical experiment according to the historical status data includes: A preset performance evaluation model based on a long short-term memory network is adopted to obtain the device availability according to the historical status data.
[0007] Furthermore, after the step of obtaining the total score of the chemical experiment of the experimenter, the method further includes: The experimenter's experiment guidance data is generated according to the experiment operation data.
[0008] Furthermore, the step of obtaining the experimental result data of the chemical experiment and the experimental operation data of the experimenter during the experiment includes: Obtaining a preset chemical engineering course, and obtaining preset experimental operation rules and preset experimental results according to the preset chemical engineering course; and The experimental operation data is collected according to the preset experimental operation rules, and the experimental result data is obtained and collected according to the preset experimental results.
[0009] In a second aspect, the present invention further provides a chemical experiment system, comprising: Chemical experiment equipment, which is used for experimenters to perform chemical experiment operations; Data acquisition equipment, which is used to collect performance parameters of the chemical experimental equipment, as well as experimental operation data and experimental result data of the experimenter; A data processing device is connected to the data acquisition device and is used to execute any of the scoring methods for chemical experiments described above.
[0010] Furthermore, the data processing device is connected to an identity authentication device, and the identity authentication device is used to authenticate the identity of the experimenter.
[0011] Furthermore, the identity authentication device includes a face recognition device and / or a fingerprint recognition device.
[0012] Furthermore, the data processing device is connected to a data interface, which is used to connect to a terminal device, so that after obtaining the total score of the chemistry experiment of the experimenter, the total score of the chemistry experiment is sent to the terminal device through the data interface.
[0013] Furthermore, the data processing device is connected to an information input device, and the information input device is used to input the identity information of the experimenter and the course information of the chemical experiment.
[0014] The technical solution provided by the present invention can obtain the experimental operation data and experimental result data of the experimenter, provided that the equipment availability of the experimental equipment involved in the chemical experiment meets the preset availability conditions, and obtain the experimenter's experimental operation score based on the experimental operation data, and obtain the experimenter's experimental result score based on the experimental result data; finally, based on the experimental operation score and the experimental result score, the experimenter's total chemical experiment score is obtained. Due to the technical solution of the present invention, the process of obtaining the experimenter's total chemical experiment score does not require the manual participation of an examiner, thereby improving the work efficiency of the experimenter's chemical experiment evaluation and solving the problem of unreliable evaluation results due to human factors.
[0015] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings: Figure 1 is a schematic structural diagram of a chemical engineering experiment system according to one embodiment of the present invention; Figure 2 is a schematic flow chart of a scoring method for a chemical experiment according to one embodiment of the present invention; Figure 3 1 is a schematic structural diagram of a chemical engineering experiment system according to another embodiment of the present invention. DETAILED DESCRIPTION
[0017] Refer to the following Figures 1 to 3 To describe a chemical experiment system and a scoring method for chemical experiments in an embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indication does not exclude other features and may further include other features.
[0018] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.
[0019] Figure 1 The figure is a schematic structural diagram of a chemical experiment system according to one embodiment of the present invention. The chemical experiment system includes a data processing device 11, a data acquisition device 12, and a chemical experiment device 13. The chemical experiment device 13 is used to allow an experimenter to perform chemical experiment operations, and the data acquisition device 12 is used to collect the experimenter's experimental operation data and experimental results, as well as the performance parameters of the chemical experiment device 13. The data processing device 11 can execute a chemical experiment scoring method based on the experimenter's experimental operation data and experimental results, as well as the performance parameters of the chemical experiment device 13, to obtain the experimenter's chemical experiment score.
[0020] In this embodiment, the chemical laboratory equipment 13 may include one or more of analytical instruments, purification equipment, sample preparation and digestion equipment, and electronic instruments, among which the analytical instruments may include one or more of an electronic balance, a polarimeter, a refractometer, a pH meter, a viscometer, a gas chromatograph, a spectrometer, an infrared absorption spectrometer, a nuclear magnetic resonance spectroscopy, a high performance liquid chromatograph, and a mass spectrometer. The purification equipment may include one or more of an ultrapure water machine, a rotary evaporator, a water distiller, a nitrogen blower, a vacuum centrifuge concentrator, a parallel evaporator, and a gel purification system. The sample preparation and digestion equipment may include one or more of a microwave digester, an electric heat digester, an ultraviolet digester, a digestion furnace, and a sample dissolution machine. The electronic instruments and equipment may include one or more of an oven, a hair dryer, an infrared lamp, an electric heating jacket, a voltage regulating transformer, a stirrer, and a centrifuge.
[0021] The data acquisition device 12 in this embodiment may include a plurality of cameras, each of which is mounted at a different preset position of the chemical experiment equipment 13 to capture the experimenter's experimental movements from different angles.
[0022] In this embodiment, the data acquisition device 12 is deployed at the chemical experimental equipment 13, the data processing device 11 can be deployed on the server, and the data acquisition device 12 is communicatively connected to the data processing device 11. The data acquisition device 12 can collect the experimenter's experimental operation data and experimental result data and send them to the data processing device 11.
[0023] The process of the scoring method of the chemical experiment executed by the data processing device 11 in this embodiment is as follows: Figure 2 As shown, the specific steps include: Step S101: Obtain historical status data of experimental equipment involved in chemical experiments, and obtain equipment availability of chemical experiments based on the historical status data; Step S102: determining whether the availability of equipment for chemical experiments meets a preset availability condition; If yes, proceed to step S103; Step S103: Acquire the experimental result data of the chemical experiment and the experimental operation data of the experimenter during the experiment; Step S104: obtaining standard result data of the chemical experiment, and evaluating the experimental result data according to the standard result data to obtain the experimenter's experimental result score; Step S105: obtaining a plurality of experimental sub-operations according to the experimental operation data, and obtaining a standard sub-operation for each experimental sub-operation; Step S106: obtaining the sub-operation score of the corresponding experimental sub-operation according to each standard sub-operation, and integrating the sub-operation scores to obtain the experimenter's experimental operation score; Step S107: Obtain the experimenter's total chemical experiment score based on the experimenter's experimental result score and experimental operation score.
[0024] In step S101, the experimental equipment involved can be determined based on the type of chemical experiment. Historical usage data for the experimental equipment, such as historical measurement data on temperature, current, and voltage, or historical maintenance data, can then be obtained. After obtaining the historical status data for the experimental equipment, a pre-defined analysis method can be used to analyze the equipment availability based on the historical status data.
[0025] In step S102, the obtained equipment availability of the experimental equipment may include the probability of failure of the experimental equipment, and the preset availability condition may be that the failure probability of the experimental equipment is less than a set failure threshold. If the equipment availability of the chemical experiment meets the preset availability condition, it can be determined that the experimental equipment involved in the chemical experiment is available, and step S103 is executed to evaluate the experimenter's chemical experiment.
[0026] In the above step S103 , the method for obtaining the experimenter's experimental operation data includes: collecting the experimenter's experimental operation video through the data acquisition device 12 , and using the operation video as the experimenter's experimental operation data.
[0027] In this embodiment, the method for obtaining the experimental result data of the experimenter includes: obtaining the detection data of the finished chemical experiment product through the data acquisition device 12, and the detection data is the experimental result data of the experimenter.
[0028] In the above step S104, the method for obtaining the experimenter's experimental result score based on the experimental result data includes: obtaining the standard result data of the chemical experiment, and using a preset data evaluation model to calculate the consistency between the experimenter's experimental result data and the corresponding experimental indicators in the standard result data, and obtaining the experimenter's experimental result score based on the consistency.
[0029] The experimental result data of chemical experiments may include multiple experimental indicators such as purity, conductivity, concentration, etc. In this embodiment, it is assumed that there are n experimental indicators in the experimental result data, and the value of the i-th experimental indicator is , the value of the i-th experimental indicator in the standard result data is , then the experimenter's experimental result score for:
[0030] in, is the weight value of the i-th experimental indicator, and
[0031] In the above step S105 , the experimenter's experimental operation can be identified from the experimenter's experimental operation video, and the experimenter's experimental operation can be disassembled to obtain a plurality of experimental sub-operations of the experimenter.
[0032] In the above-mentioned step S106, the method for obtaining the experimental operation score based on the experimental operation data of the experimenter includes: respectively obtaining the standard score operations corresponding to the experimental point operations of the experimenter, and respectively calculating the similarity between each experimental point operation of the experimenter and its corresponding standard score operation; then respectively correcting the corresponding similarity based on the equipment performance information of the chemical experimental equipment used for each experimental point operation; finally, fusing the corrected similarities to calculate the experimental operation score of the experimenter.
[0033] Taking the i-th experimental sub-operation as an example, the method for calculating the similarity between the experimental sub-operation and its corresponding standard operation includes: extracting multiple feature actions in the i-th standard sub-operation in chronological order, and determining the number of feature actions in the i-th experimental sub-operation, and then obtaining the similarity between the i-th experimental sub-operation and the i-th standard sub-operation based on the number.
[0034] In this embodiment, it is assumed that N characteristic actions are extracted from the i-th standard score operation, and there are M characteristic actions in the i-th experimental score operation. Then the similarity between the i-th experimental score operation and the i-th standard score operation is ,but
[0035] In this embodiment, it is assumed that the experimental operation data of the chemical experiment has m experimental sub-operations, where the preset weight of the i-th experimental sub-operation is , then the experimenter's experimental operation score for:
[0036] In the above step S107, the experimenter's total chemical experiment score can be obtained by performing a weighted summation on the experimenter's experimental result score and experimental operation score.
[0037] In this embodiment, the weight of the experimental results is set to , the weight of the experimental operation is , the total score of the chemical experiment of the experimenter is P, then
[0038] According to the above content, the technical solution of this embodiment can obtain the experimental operation data and experimental result data of the experimenter, and obtain the experimental operation score of the experimenter based on the experimental operation data, and obtain the experimental result score of the experimenter based on the experimental result data; finally, according to the experimental operation score and the experimental result score, obtain the experimenter's total chemical experiment score. Due to the technical solution of the present invention, in the process of obtaining the experimenter's total chemical experiment score, there is no need for the manual participation of the examiner, thus improving the work efficiency of the experimenter's chemical experiment evaluation and solving the problem of unreliable evaluation results due to human factors.
[0039] In some embodiments of the present invention, the method for obtaining equipment availability for a chemical experiment based on historical status data of experimental equipment involved in the chemical experiment in step S101 includes: A preset performance evaluation model based on long short-term memory network is used to obtain the equipment availability of chemical experiments according to the historical status data of experimental equipment involved in chemical experiments.
[0040] Long Short-Term Memory (LSTM) networks are a special type of recurrent neural network designed to address the vanishing and exploding gradient problems encountered by traditional neural networks when processing long sequences of data. In this embodiment, a preset performance evaluation model based on the LSTM network is used to determine the availability of experimental equipment. This requires pre-training the LSTM network model to obtain the preset performance evaluation model. Because chemical experiments may require the use of multiple experimental equipment, this embodiment obtains a preset performance evaluation model for each experimental equipment separately.
[0041] This embodiment takes one of the experimental devices as an example, and the method for obtaining the preset performance evaluation model of the experimental device includes: First, obtain historical reference data of this type of experimental equipment. The acquisition method includes: obtaining feature detection data and label data of this type of experimental equipment within a past set time period, wherein the type of feature detection data can be determined according to the type of the experimental equipment. For example, for experimental equipment that requires electricity, its feature detection data may include current, voltage, and temperature within a past set time period; the label data is used to indicate whether the experimental equipment is available. If it is available, the label data of the experimental equipment is 1, otherwise the label data of the experimental equipment is 0.
[0042] The acquired historical reference data is then preprocessed, including normalization, time windowing, and label generation. Normalization scales the acquired historical reference data to [0, 1] to accelerate the convergence of the long short-term memory network. Time windowing divides the historical reference data into fixed-length windows based on the time series. Label generation generates information about the availability of the experimental equipment at the next moment in each time window.
[0043] Next, a long short-term memory network model is constructed, which includes an input layer, an LSTM layer, a Dropout layer, and a fully connected layer. The input layer is used to receive various types of historical reference data within the time window; the LSTM layer is used to capture the long-term dependencies of various types of historical reference data, avoid the gradient disappearance / guarantee of historical reference data, and select the memory and forgetting of historical reference data; the Dropout layer is used to map the output of the LSTM layer to the prediction results.
[0044] Finally, among the historical reference data of multiple windows obtained, 70% of the historical reference data of the windows are used as training sets, 15% of the historical reference data of the windows are used as validation sets, and 15% of the historical reference data of the windows are used as test sets to train the long short-term memory network model to obtain the preset performance evaluation model of the experimental equipment.
[0045] After obtaining the historical status data of the experimental equipment involved in the chemical experiment, the historical status data of each experimental equipment is input into its corresponding preset performance evaluation model. Each preset performance evaluation model can output the probability of failure of its corresponding experimental equipment, which is the availability of its corresponding experimental equipment.
[0046] In this embodiment, a preset performance evaluation model based on a long short-term memory network is used to obtain the equipment availability of chemical experiments, which can improve the reliability and accuracy of the evaluation of the equipment availability of chemical experiments.
[0047] In some embodiments of the present invention, after obtaining the total chemical experiment score of the experimenter in step S104, the method further includes: Generate the experimenter's experimental guidance data based on the experimenter's experimental operation data.
[0048] The method for generating experimental guidance data for an experimenter in this embodiment includes: obtaining an experimental score operation whose similarity with a standard score operation is less than a preset similarity threshold, and using the experimental operation data of the experimental score operation corresponding to the standard score operation as the experimenter's experimental guidance data.
[0049] After obtaining the total chemical experiment score of the experimenter, this embodiment also generates experimental guidance data for the experimenter to guide the experimenter to correct incorrect operations that occur during the chemical experiment, thereby improving the experimenter's mastery of chemical knowledge.
[0050] In some embodiments of the present invention, the method for obtaining the experimenter's experimental operation data and experimental result data in step S102 includes: First, a preset chemical engineering course is obtained, and preset experimental operation rules and preset experimental results are obtained according to the preset chemical engineering course; Then, the experimenter's experimental operation data is collected according to the obtained preset experimental operation rules, and the experimenter's experimental result data is collected according to the obtained preset experimental results.
[0051] In this embodiment, the preset experimental rules obtained include the experimental equipment, standard score operations and the duration of each standard score operation involved in the preset chemical engineering course. Collecting the experimental operation data of the experimenter according to the obtained preset experimental operation rules includes: determining the angle for collecting the experimental operation data according to the position of the experimental equipment involved in the chemical engineering course, and determining the collection duration of each experimental score operation in the experimental operation data according to the duration of each standard score operation, thereby collecting the experimental operation data of the experimenter.
[0052] In this embodiment, the preset experimental results obtained include multiple experimental indicators such as purity, conductivity, concentration, etc., and then data collection is performed on the results of the chemical experiment based on the multiple experimental indicators to obtain the experimental result data of the collection experimenter.
[0053] This embodiment can obtain preset experimental operation rules and preset experimental results according to the preset chemical engineering course, and collect the experimental operation data and experimental result data of the experimenter according to the preset experimental operation rules and preset experimental results, so that the chemical engineering experiment system can be applied to different chemical engineering courses, thereby improving the applicability of the chemical engineering experiment system.
[0054] In some embodiments of the present invention, Figure 3As shown, the data processing device 11 is further connected to an identity authentication device 14, which is used to authenticate the identity of the experimenter.
[0055] In this embodiment, the identity authentication device 14 collects the identity information of the experimenter and sends it to the data processing device 11. The data processing device 11 compares the identity information of the experimenter with pre-stored identity information to determine whether the data processing device 11 has the experimenter's identity information pre-stored. If so, the experimenter's identity is determined to be legitimate, and step S101 is started to begin scoring the experimenter's chemical experiment.
[0056] In this embodiment, the identity of the experimenter can be authenticated by the identity authentication device 14 to correspond the identity information of the experimenter with the total score of the chemical experiment, so that different experimenters can use the chemical experiment system to conduct experiments, thereby improving the applicability of the chemical experiment system.
[0057] Furthermore, in some embodiments of the present invention, the identity authentication device 14 includes a face recognition device and / or a fingerprint recognition device.
[0058] In this embodiment, the facial recognition device can collect the experimenter's facial information and send it to the data processing device 11. The data processing device 11 can compare the experimenter's facial information with pre-stored facial information to determine whether the experimenter's facial information is pre-stored in the data processing device 11. If so, the experimenter's identity is determined to be legitimate, and the collection and execution of step S101 begin to begin scoring the experimenter's chemical experiment.
[0059] Similarly, the fingerprint recognition device can collect the experimenter's fingerprint information and send it to the data processing device 11. The data processing device 11 can compare the experimenter's fingerprint information with pre-stored facial information to determine whether the data processing device 11 has the experimenter's fingerprint information pre-stored. If so, the experimenter's identity is determined to be legitimate, and the collection and execution of step S101 begin to begin scoring the experimenter's chemical experiment.
[0060] In some embodiments of the present invention, the data processing device 11 is also connected to a data interface 15, which is used to connect to a terminal device. For example, the data interface 15 can be a USB interface or other data interface 15 that can transmit data. The data processing device 11 can be connected to a terminal device such as a mobile phone or a tablet computer through the data interface 15.
[0061] After obtaining the total chemical experiment score of the experimenter in the above step S104, the method further includes: sending the total chemical experiment score of the experimenter to the terminal device through the data interface 15.
[0062] In this embodiment, a data interface 15 is connected to the data processing device 11, and a terminal device can be connected through the data interface 15 to send the experimenter's total chemical experiment score to the terminal device, so that the experimenter can obtain the total chemical experiment score from the terminal device.
[0063] In some embodiments of the present invention, the data processing device 11 is further connected to an information input device 16, which is used to input the identity information of the experimenter and the course information of the chemical experiment.
[0064] In this embodiment, the information input device 16 can be a device such as a mouse, keyboard, or tablet that can interact with the data processing device 11, or a device such as a data interface that can import data. Users such as experimenters can use the information input device 16 to enter their identity information and chemical experiment course information into the chemical experiment system, thereby improving the reliability of the chemical experiment equipment.
[0065] At this point, those skilled in the art will recognize that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.
Claims
1. A scoring method for chemical engineering experiments, characterized in that: include: Obtaining historical status data of experimental equipment involved in the chemical experiment, and obtaining equipment availability of the chemical experiment based on the historical status data; When the availability of the equipment meets the preset availability conditions, obtaining experimental result data of the chemical experiment and experimental operation data of the experimenter during the experiment; Obtaining standard result data of the chemical experiment, and evaluating the experimental result data according to the standard result data to obtain the experimental result score of the experimenter; Acquire multiple experimental sub-operations according to the experimental operation data, and obtain a standard sub-operation for each of the experimental sub-operations; Obtaining the sub-operation score of the corresponding experimental sub-operation according to each of the standard sub-operations, and fusing the sub-operation scores to obtain the experimental operation score of the experimenter; The total chemical experiment score of the experimenter is obtained according to the experimental result score and the experimental operation score.
2. The scoring method for chemical experiment according to claim 1, characterized in that: The step of obtaining the equipment availability of the chemical experiment according to the historical status data includes: A preset performance evaluation model based on a long short-term memory network is adopted to obtain the device availability according to the historical status data.
3. The scoring method for chemical experiment according to claim 1, characterized in that: After the step of obtaining the total score of the chemical experiment of the experimenter, the method further includes: The experimenter's experiment guidance data is generated according to the experiment operation data.
4. The scoring method for chemical experiment according to claim 1, characterized in that: The step of obtaining the experimental result data of the chemical experiment and the experimental operation data of the experimenter during the experiment includes: Obtaining a preset chemical engineering course, and obtaining preset experimental operation rules and preset experimental results according to the preset chemical engineering course; and The experimental operation data is collected according to the preset experimental operation rules, and the experimental result data is obtained and collected according to the preset experimental results.
5. A chemical experiment system, characterized in that: include: Chemical experiment equipment, which is used for experimenters to perform chemical experiment operations; Data acquisition equipment, which is used to collect performance parameters of the chemical experimental equipment, as well as experimental operation data and experimental result data of the experimenter; A data processing device, connected to the data acquisition device, for executing the scoring method for the chemical experiment according to any one of claims 1 to 4.
6. The chemical experiment system according to claim 5, characterized in that: The data processing device is connected to an identity authentication device, and the identity authentication device is used to authenticate the identity of the experimenter.
7. The chemical experiment system according to claim 6, characterized in that: The identity authentication device includes a face recognition device and / or a fingerprint recognition device.
8. The chemical experiment system according to claim 5, characterized in that: The data processing device is connected to a data interface, and the data interface is used to connect to a terminal device, so that after obtaining the total score of the chemistry experiment of the experimenter, the total score of the chemistry experiment is sent to the terminal device through the data interface.
9. The chemical experiment system according to claim 5, characterized in that: The data processing device is connected to an information input device, and the information input device is used to input the identity information of the experimenter and the course information of the chemical experiment.