CN109215402B - On-book chemical experiment method and system based on AR - Google Patents
On-book chemical experiment method and system based on AR Download PDFInfo
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- CN109215402B CN109215402B CN201811214946.2A CN201811214946A CN109215402B CN 109215402 B CN109215402 B CN 109215402B CN 201811214946 A CN201811214946 A CN 201811214946A CN 109215402 B CN109215402 B CN 109215402B
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- 238000002474 experimental method Methods 0.000 title claims abstract description 146
- 239000000126 substance Substances 0.000 title claims abstract description 92
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000003814 drug Substances 0.000 claims abstract description 151
- 238000002360 preparation method Methods 0.000 claims abstract description 34
- 238000004458 analytical method Methods 0.000 claims abstract description 16
- 238000013507 mapping Methods 0.000 claims description 14
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 229940079593 drug Drugs 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical class Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 40
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 9
- 229910052801 chlorine Inorganic materials 0.000 description 9
- 239000000460 chlorine Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
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- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical class O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 3
- 239000013043 chemical agent Substances 0.000 description 3
- 229940000406 drug candidate Drugs 0.000 description 3
- 239000003596 drug target Substances 0.000 description 3
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- 238000003860 storage Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/24—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for chemistry
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- Educational Technology (AREA)
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
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Abstract
The invention relates to the field of education informatization, and relates to an AR-based book chemistry experiment method, which comprises the following steps: scanning and identifying the chemical book by the AR equipment to determine the chemical experiment content and loading an experiment device model; in the experiment preparation stage, the experimental equipment and the experimental medicament are determined through the image recognition equipment illustration and the medicament illustration; the AR equipment displays a medicament mixing scene in an experiment stage, prompts to set equipment states, sets equipment through an image recognition experiment equipment card, displays an experiment phenomenon scene according to the experiment equipment setting and the medicament mixing scene, and gives analysis and error feedback according to an error experiment phenomenon. The invention also provides an AR-based book chemical experiment system. The invention can accurately generate experimental scenes, medicaments and selection of medicines and experimental equipment through image recognition so as to truly simulate experimental phenomena in the AR equipment, simulate corresponding error phenomena according to misoperation and give a prompt, so that students can obtain better learning effect.
Description
Technical Field
The invention relates to the field of education informatization, in particular to an AR-based book chemistry experiment method and system.
Background
Chemical experiments are very important for chemistry, the chemical experiments are mainly completed in a laboratory at present, but the requirements on equipment are strict in the experimental process, the operation is dangerous, the experiment that the experimental result possibly generates toxic and harmful gas cannot be operated by students, and teachers cannot demonstrate the experiment.
Currently, in the education industry, Augmented Reality (AR) technology is used to help students complete chemical experiments to enhance interestingness, but such a method cannot specifically present knowledge points which need to be memorized by the students in chemical experiment education, such as key points and error-prone contents like operation steps of the experiments, so that the students cannot obtain better learning effects through new technical means.
Disclosure of Invention
Embodiments of the present invention are directed to solving at least one of the technical problems occurring in the prior art. Therefore, the embodiments of the present invention need to provide a method and system for an AR-based book chemistry experiment.
The invention provides an AR-based book chemistry experiment method, which is characterized by comprising the following steps:
step 11, scanning and identifying the chemical book through AR equipment to determine the content of a chemical experiment to be performed and loading a corresponding experimental device model;
step 12, in the experiment preparation stage, determining partial experimental equipment lacking in the experimental device model through an experimental equipment illustration selected by an image recognition user, and determining partial experimental medicaments lacking in the experimental device model through an experimental medicament illustration of image recognition;
and step 13, in the experimental stage, displaying a medicament mixing scene through the AR equipment, prompting to set equipment states, setting equipment through an image recognition experimental equipment card, displaying a chemical experimental phenomenon scene according to the setting of the experimental equipment and the medicament mixing scene, and analyzing and feeding error feedback according to the wrong chemical experimental phenomenon.
In one embodiment, the method further comprises:
step 10, customizing a chemical book capable of being scanned and identified in advance, wherein the chemical book comprises an experimental device illustration, an experimental equipment illustration, an experimental medicament illustration and a matched experimental equipment card.
In one embodiment, step 12 comprises:
step 121, prompting to select a part of experimental equipment lacking in the experimental device model and acquiring an experimental equipment illustration through image recognition in an experimental preparation stage;
step 122, displaying an equipment selection interface forming a mapping relation with the experimental equipment illustration through the AR equipment, receiving the selection of a user, and determining the name of the experimental equipment, the placement condition of the equipment and the form parameters of the container;
step 123, prompting to select a part of experimental medicaments lacking in the experimental device model and acquiring an experimental medicament illustration through image recognition;
and 124, displaying a medicament selection interface forming a mapping relation with the experimental medicament illustration through the AR equipment, receiving the selection of the user, and determining the name of the experimental medicament and the parameters of the experimental medicament.
In one embodiment, step 13 comprises:
step 131, in the experimental stage, displaying a medicament mixing scene through the AR device;
step 132, prompting to set equipment states, identifying the experimental equipment card through images to generate a coordinate system, completing operations including position movement, rotation, use and evacuation of the experimental equipment according to the movement of the experimental equipment card, returning coordinate parameters and judging normal operation or errors of the experiment according to the coordinate parameters;
step 133, displaying a chemical experiment phenomenon scene according to the setting of experimental equipment and a medicament mixing scene;
analysis and error feedback is given based on the erroneous chemical experimental phenomenon, step 134.
In one embodiment, step 121 includes: in the experiment preparation stage, when prompting to select part of experimental equipment lacking in the experimental device model, starting the identification of the experimental equipment illustration, closing the identification of other illustrations except the experimental equipment illustration, and acquiring the experimental equipment illustration through image identification;
step 123 comprises: when part of experimental medicaments lacking in the experimental device model are prompted to be selected, identification of the experimental medicament illustration is started, identification of other illustrations except the experimental medicament illustration is closed, and the experimental medicament illustration is obtained through image identification;
step 132 includes: when the equipment state is prompted to be set, the identification of the experimental equipment card is started, the identification of other insertion pictures except the experimental equipment card is closed, the experimental equipment card is identified through the image to generate a coordinate system, the operation of the experimental equipment including the position movement, rotation, use and evacuation of the equipment is completed according to the movement of the experimental equipment card, the coordinate parameter is returned, and the normal operation or the error of the experiment is judged according to the coordinate parameter.
This embodiment still provides a book chemical experiment system based on AR, its characterized in that includes:
the loading module is used for scanning and identifying the chemical book through the AR equipment to determine the content of a chemical experiment to be performed and loading a corresponding experimental device model;
the preparation module is used for determining partial experimental equipment lacking in the experimental device model through an experimental equipment illustration selected by an image recognition user and determining partial experimental medicaments lacking in the experimental device model through an experimental medicament illustration of image recognition in an experimental preparation stage;
the experiment module is used for displaying a medicament mixing scene through the AR equipment in an experiment stage, prompting to set an equipment state and setting equipment through an image recognition experiment equipment card, displaying a chemical experiment phenomenon scene according to the setting of the experiment equipment and the medicament mixing scene, and giving analysis and error feedback according to wrong chemical experiment phenomenon.
In one embodiment, the system further comprises:
the customization module is used for completing the customization of a chemical book which can be scanned and identified in advance, wherein the chemical book comprises an experimental device illustration, an experimental equipment illustration, an experimental medicament illustration and a matched experimental equipment card.
In one embodiment, the preparation module includes:
the equipment identification unit is used for prompting selection of partial experimental equipment lacking in the experimental device model and acquiring an experimental equipment illustration through image identification in an experimental preparation stage;
the equipment determining unit is used for displaying an equipment selecting interface which forms a mapping relation with the experimental equipment illustration through the AR equipment, receiving the selection of a user, and determining the name of the experimental equipment, the placement condition of the equipment and the form parameters of the container;
the medicament identification unit is used for prompting selection of part of experimental medicaments lacking in the experimental device model and acquiring an experimental medicament illustration through image identification;
and the medicament determining unit is used for displaying a medicament selection interface forming a mapping relation with the experimental medicament illustration through the AR equipment, receiving the selection of a user, and determining the name of the experimental medicament and the parameters of the experimental medicament.
In one embodiment, the assay module comprises:
the first display unit is used for displaying a medicament mixing scene through the AR equipment in an experimental stage;
the card identification unit is used for prompting the equipment state to be set, identifying the experimental equipment card through an image to generate a coordinate system, completing the operations of position movement, rotation, use and evacuation of the experimental equipment according to the movement of the experimental equipment card, returning a coordinate parameter and judging the normal operation or error of the experiment according to the coordinate parameter;
the second display unit is used for displaying a chemical experiment phenomenon scene according to the setting of the experiment equipment and the medicament mixing scene;
and the analysis feedback unit is used for giving analysis and error feedback according to the wrong chemical experiment phenomenon.
In one embodiment, the equipment identification unit is specifically configured to, in an experiment preparation stage, when prompting selection of a part of experimental equipment lacking in the experimental device model, start identification of an experimental equipment illustration, close identification of other illustrations except the experimental equipment illustration, and acquire the experimental equipment illustration through image identification;
the medicament identification unit is specifically used for starting identification of an experimental medicament illustration when part of experimental medicaments lacking in the experimental device model are selected, closing identification of other illustrations except the experimental medicament illustration, and acquiring the experimental medicament illustration through image identification;
the card identification unit is specifically used for starting identification of the experimental device card when the device state is prompted to be set, closing identification of other insertion pictures except the experimental device card, generating a coordinate system through image identification of the experimental device card, completing operations including position movement, rotation, use and evacuation of the experimental device according to movement of the experimental device card, returning coordinate parameters and judging normal operation or errors of an experiment according to the coordinate parameters.
The AR-based book chemical experiment method and system provided by the embodiment of the invention can accurately generate basic experiment scenes, medicaments and selection of medicines and experimental equipment through image recognition so as to truly simulate experiment phenomena in AR equipment, simulate corresponding error phenomena according to misoperation and give a prompt, so that students can obtain better learning effect.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of embodiments of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic flow diagram of an AR-based book chemistry experiment method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the composition of an AR-based book chemistry experiment system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a model of an experimental apparatus for producing chlorine according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a process for producing chlorine in accordance with an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only and should not be construed as limiting the embodiments of the present invention.
Referring to fig. 1, the AR-based book chemistry experiment method according to the embodiment of the present invention includes:
and 11, scanning and identifying the chemical book through the AR equipment to determine the content of the chemical experiment to be performed and loading a corresponding experimental device model.
And step 12, in the experiment preparation stage, the experimental equipment is determined by the experimental equipment illustration selected by the image recognition user, and the experimental medicament is determined by the image recognition experimental medicament illustration.
And step 13, in the experimental stage, displaying a medicament mixing scene through the AR equipment, prompting to set equipment states, setting equipment through an image recognition experimental equipment card, displaying a chemical experimental phenomenon scene according to the setting of the experimental equipment and the medicament mixing scene, and analyzing and feeding error feedback according to the wrong chemical experimental phenomenon.
Referring to fig. 2, the AR-based book chemistry experiment system according to the embodiment of the present invention includes: the system comprises a loading module, a preparation module and an experiment module, wherein the introduction of each module is as follows:
and the loading module is used for scanning and identifying the chemical book through the AR equipment to determine the content of the chemical experiment to be performed and loading the corresponding experimental device model.
And the preparation module is used for identifying the experimental equipment by the experimental equipment illustration selected by the user through image identification and identifying the experimental medicament by the experimental medicament illustration through the image identification in the experimental preparation stage.
The experiment module is used for displaying a medicament mixing scene through the AR equipment in an experiment stage, prompting to set an equipment state and setting equipment through an image recognition experiment equipment card, displaying a chemical experiment phenomenon scene according to the setting of the experiment equipment and the medicament mixing scene, and giving analysis and error feedback according to wrong chemical experiment phenomenon.
In this embodiment, the AR-based book chemical experiment method takes the AR-based book chemical experiment system as an execution target of the steps, or takes each module within the system as an execution target of the steps. Specifically, step 11 takes the loaded module as the execution object of the step, step 12 takes the prepared module as the execution object of the step, and step 13 takes the experimental module as the execution object of the step.
In step 11, the loading module scans and identifies the chemical book through the AR device to determine the contents of the chemical experiment to be performed and loads the corresponding experimental device model. Before the whole experiment is started, the experiment contents are distinguished through scanning and identifying the chemical book, and the chemical experiment and the corresponding experimental device model are determined. In this embodiment, the chemical book used may be a general textbook in which schematic images of the chemical experiment are recorded or only the description of the chemical experiment text is written, and then relevant information of the chemical experiment, including the use status of the drugs, equipment, and equipment used in the chemical experiment, is determined by image recognition or OCR recognition on the text, so as to determine the content of the chemical experiment to be performed currently, and facilitate handling of subsequent matters in the AR device.
Further, the book chemical experiment method based on AR further comprises:
step 10, customizing a chemical book capable of being scanned and identified in advance, wherein the chemical book comprises an experimental device illustration, an experimental equipment illustration, an experimental medicament illustration and a matched experimental equipment card.
Correspondingly, the AR-based book chemistry experiment system further comprises:
the customization module is used for completing the customization of a chemical book which can be scanned and identified in advance, wherein the chemical book comprises an experimental device illustration, an experimental equipment illustration, an experimental medicament illustration and a matched experimental equipment card.
In the present embodiment, the step 10 may be performed by the AR-based book chemical experiment system, or may be performed by a custom module. The success rate and the experimental effect of scanning recognition are ensured by customizing the chemical books.
Referring to fig. 3, taking the chemical experiment for preparing chlorine as an example, the experimental apparatus illustration on the chemical book is identified by scanning to confirm that the experimental contents performed this time are the experimental apparatus model diagram for preparing chlorine and then loading.
In step 12, the experimental preparation phase comprises:
and step 121, prompting selection of experimental equipment and obtaining an experimental equipment illustration through image recognition in an experimental preparation stage.
And step 122, displaying a device selection interface forming a mapping relation with the experimental device illustration through the AR equipment, receiving the selection of a user, and determining the name of the experimental device, the placement condition of the device and the container form parameters.
And step 123, prompting selection of an experimental medicament and acquiring an experimental medicament illustration through image recognition.
And 124, displaying a medicament selection interface forming a mapping relation with the experimental medicament illustration through the AR equipment, receiving the selection of the user, and determining the name of the experimental medicament and the parameters of the experimental medicament.
Correspondingly, the preparation module comprises:
and the equipment identification unit is used for prompting selection of experimental equipment and acquiring an experimental equipment illustration through image identification in an experiment preparation stage.
And the equipment determining unit is used for displaying an equipment selecting interface which forms a mapping relation with the experimental equipment illustration through the AR equipment, receiving the selection of a user, and determining the name of the experimental equipment, the placement condition of the equipment and the container form parameters.
And the medicament identification unit is used for prompting selection of an experimental medicament and acquiring an experimental medicament illustration through image identification.
And the medicament determining unit is used for displaying a medicament selection interface forming a mapping relation with the experimental medicament illustration through the AR equipment, receiving the selection of a user, and determining the name of the experimental medicament and the parameters of the experimental medicament.
Steps 121 to 124 may be performed by a preparation module, or may be performed by each unit in the preparation module. Specifically, step 121 may be performed by the equipment identification unit, step 122 may be performed by the equipment determination unit, step 123 may be performed by the medicine identification unit, and step 124 may be performed by the medicine determination unit.
Taking chemical experiments for preparing chlorine as an example, the method generally comprises the following steps:
experimental apparatus: all experimental equipment and agents required to perform this experiment
Experimental equipment: iron stand, flask, funnel, gas collecting bottle and the like
Experimental agents: concentrated sulfuric acid, concentrated hydrochloric acid, manganese dioxide, saturated salt water, etc
An experiment preparation stage: after the experimental device model for preparing chlorine is loaded, part of necessary experimental equipment and experimental agents are lacked, namely, the experimental equipment-separating funnel and the experimental agents-concentrated hydrochloric acid are initially set to be lacked.
In step 121, the equipment identification unit prompts selection of experimental equipment and obtains an experimental equipment illustration through image identification in an experiment preparation stage. I.e. the selection of equipment and containers for chemical experiments is detected by image recognition of the experimental equipment artwork. The experimental equipment illustration comprises some illustrations drawn with experimental equipment, illustrations marking the arrangement state of the equipment and the like.
In step 122, the equipment determination unit may display an equipment selection interface forming a mapping relationship with the experimental equipment illustration through the AR device, for example, an empty gas collecting cylinder for collecting chlorine gas, where the left side of the assembled conduit is long or the right side of the assembled conduit is long (related to the prepared gas density and the air density), and the user needs to select the equipment selection interface through a virtual key, where the selection mode may be implemented on a customized chemical book by shielding the virtual key and shielding time, or the selection interface of the AR device is implemented by internal UI call, which is not limited herein. The name of the experimental equipment, the placement condition of the equipment and the container form parameters are determined in such a way after the selection of the user is received. Because a plurality of experimental devices often exist in chemical experiments, the selection of each experimental device can be respectively completed in a plurality of selection modes, and the placement condition, the container shape parameters and the like of the experimental device are determined according to the selected devices, for example, the placement condition and the container shape parameters of the device of the separating funnel are determined firstly, and then the placement condition and the container shape parameters of the device of the gas collecting bottle are completed in a single step.
Specifically, the funnel object state value is 0, which indicates that no funnel is selected to be mounted, and no funnel model is displayed; after the equipment is selected, the funnel object state value is 1, which indicates that the equipment is selected and the name of the experimental equipment is a separating funnel, and allows the separating funnel model to be displayed; after the equipment is selected, the funnel object status value is 2, which indicates that the equipment is selected and the name of the experimental equipment is long-neck funnel, allowing the long-neck funnel model to be displayed.
In step 123, the drug identification unit prompts selection of the test drug and obtains a test drug illustration by image identification. I.e. the selection of the test drug is detected by image recognition of the test drug insert. The experimental medicament illustrations comprise illustrations with medicaments drawn, illustrations for identifying different state attributes of the experimental medicaments, and the like.
In step 124, the agent determining unit displays, through the AR device, an agent selection interface that forms a mapping relationship with the experimental agent illustration, for example, an impurity removal solution, saturated saline solution, concentrated sulfuric acid, and other agents in the gas collection bottle, which need to be selected by the user through the virtual key, where the selection mode may be implemented on a customized chemical book by shielding the virtual key and shielding time, or implemented by calling an internal UI on the display interface of the AR device, which is not limited herein. The name of the test agent and the parameters of the test agent are determined in this manner after receiving the user's selection.
Specifically, the drug target state value is 0, which indicates that no drug is selected and no drug model is displayed; after the drug is selected, the drug target state value is 1, which indicates that the device is selected and the name of the experimental drug is concentrated hydrochloric acid, and allows the concentrated hydrochloric acid model to be displayed; after the drug is selected, the drug target state value is 2, indicating that the device was selected and the name of the experimental drug is dilute hydrochloric acid, allowing the dilute hydrochloric acid model to be displayed.
In step 13, the experimental phase comprises:
step 131, in the experimental stage, the medicament mixing scene is displayed through the AR device.
And 132, prompting to set equipment states, identifying the experimental equipment card through the image to generate a coordinate system, completing the operations of moving, rotating, using and withdrawing the experimental equipment including the position of the equipment according to the movement of the experimental equipment card, returning coordinate parameters and judging normal operation or errors of the experiment according to the coordinate parameters.
Step 133, displaying a chemical experiment phenomenon scene according to the setting of experimental equipment and a medicament mixing scene;
analysis and error feedback is given based on the erroneous chemical experimental phenomenon, step 134.
Correspondingly, the experiment module in the AR-based book chemical experiment system comprises:
the first display unit is used for displaying a medicament mixing scene through the AR equipment in an experimental stage.
And the card identification unit is used for prompting the equipment state to be set, identifying the experimental equipment card through an image to generate a coordinate system, completing the operations of position movement, rotation, use and evacuation of the experimental equipment including the equipment according to the movement of the experimental equipment card, returning to a coordinate parameter and judging the normal operation or error of the experiment according to the coordinate parameter.
The second display unit is used for displaying a chemical experiment phenomenon scene according to the setting of the experiment equipment and the medicament mixing scene;
and the analysis feedback unit is used for giving analysis and error feedback according to the wrong chemical experiment phenomenon.
The steps 131 to 134 may be performed by the experiment module, or may be performed by each unit in the experiment module. For example, step 131 is performed by the first display unit as the execution object of the step, step 132 is performed by the card recognition unit as the execution object of the step, and step 133 is performed by the second display unit as the execution object of the step; step 134 is targeted by the analysis feedback unit for execution of the step.
In step 131, the first display unit displays a medicine mixing scene through the AR device at the experimental stage. The chemical agents including concentrated sulfuric acid, concentrated hydrochloric acid, manganese dioxide and saturated salt solution are initially mixed in the experimental stage, and since the chemical experiment is used for teaching purposes, if the selected chemical agent is wrong, the chemical experiment continues to be carried out according to the selected chemical agent of the user, so that wrong chemical experiment simulation continues.
In step 132, the card recognition unit prompts to set the equipment state, recognizes the experimental equipment card through the image to generate a coordinate system, completes the operations of moving, rotating, using and withdrawing the experimental equipment including the position of the equipment according to the movement of the experimental equipment card, returns the coordinate parameter and judges the normal operation or the error of the experiment according to the coordinate parameter. The experimental equipment card in the appendix of the image recognition chemical book feeds back the use condition of the experimental equipment, and the movable card performs corresponding operation on the experimental equipment by utilizing the principle of recognizing the coordinate system generated by the target picture, wherein the operation comprises the operations of moving, rotating, using, evacuating and the like of the equipment, and returning the coordinate parameters, and the normal operation or the error of the experiment is judged through the coordinate parameters. The principle of the picture generation coordinate system is to give a picture, coordinate the picture, and mark the type to which each coordinate point belongs on the generated binary coordinate system. For example, an experimental device card in which an alcohol lamp picture is recorded can obtain different coordinate parameters by moving the card, and then whether the experiment runs normally is judged according to the coordinate parameters. Specifically, the experimental device card of the alcohol lamp picture is moved to the lower part of the round-bottom flask, and then the experimental phenomenon of heating the round-bottom flask by the alcohol lamp is normally operated; or withdrawing the experimental device card of the alcohol lamp picture from the lower part of the round-bottom flask for a certain distance, and normally running the experiment phenomenon of 'no heating of the round-bottom flask'.
In step 133, the second display unit displays a chemical experiment phenomenon scene according to the setting of the experimental device and the medicament mixing scene. For example, in the experiment for preparing chlorine, the experimental device is a separating funnel, and the selected medicament is concentrated hydrochloric acid, so that the phenomena of bubbling and yellow-green gas generation in a gas collecting bottle can be generated; or the arranged experimental equipment is a long-neck funnel, and the selected medicament is hydrochloric acid, so that no reaction phenomenon exists; or the arranged experimental equipment is a long-neck funnel, and the selected medicament is concentrated hydrochloric acid, so that the experimental phenomenon of 'volatile gas overflow' is generated; or the experimental device is a separating funnel, and the selected medicament is hydrochloric acid, so that no reaction phenomenon exists.
In step 134, the analysis feedback unit gives analysis and error feedback based on the wrong chemical experiment phenomenon. For example, in a chemical experiment for preparing chlorine, if the experimental device is a separating funnel and the selected reagent is hydrochloric acid, and the error of a non-reaction phenomenon occurs, the experimental device and the experimental reagent can be analyzed, and then the selected reagent is fed back to be concentrated hydrochloric acid instead of hydrochloric acid, so that the teaching effect is improved.
Further, in order to ensure the simulation effect, in the embodiment, only the recognition of the relevant illustration is started according to the corresponding steps of the experiment progress, so as to prevent redundant recognition and selection ambiguity.
Step 121 comprises: in the experiment preparation stage, when the experimental equipment is prompted to be selected, the identification of the experimental equipment illustration is started, the identification of other illustrations except the experimental equipment illustration is closed, and the experimental equipment illustration is obtained through image identification.
Step 123 comprises: when the experimental medicament is prompted to be selected, the identification of the experimental medicament illustration is started, the identification of other illustrations except the experimental medicament illustration is closed, and the experimental medicament illustration is obtained through image identification.
Step 132 includes: when the equipment state is prompted to be set, the identification of the experimental equipment card is started, the identification of other insertion pictures except the experimental equipment card is closed, the experimental equipment card is identified through the image to generate a coordinate system, the operation of the experimental equipment including the position movement, rotation, use and evacuation of the equipment is completed according to the movement of the experimental equipment card, the coordinate parameter is returned, and the normal operation or the error of the experiment is judged according to the coordinate parameter.
Correspondingly, in the book chemical experiment system based on the AR, the equipment identification unit is specifically used for starting identification of the insertion drawing of the experimental equipment when prompting selection of the experimental equipment in an experiment preparation stage, closing identification of other insertion drawings except the insertion drawing of the experimental equipment, and acquiring the insertion drawing of the experimental equipment through image identification.
The medicament identification unit is specifically used for starting identification of the experimental medicament illustration when prompting selection of the experimental medicament, closing identification of other illustrations except the experimental medicament illustration, and acquiring the experimental medicament illustration through image identification.
The card identification unit is specifically used for starting identification of the experimental device card when the device state is prompted to be set, closing identification of other insertion pictures except the experimental device card, generating a coordinate system through image identification of the experimental device card, completing operations including position movement, rotation, use and evacuation of the experimental device according to movement of the experimental device card, returning coordinate parameters and judging normal operation or errors of an experiment according to the coordinate parameters.
For example, in chlorine gas production experiments:
and in the experiment preparation stage, an experiment is initialized, and when the experimental equipment is prompted to be selected, the identification of the insertion pictures of the experimental equipment is started, and the identification of other insertion pictures is closed.
After the equipment is selected, when the experimental medicament is prompted to be selected, the identification of the experimental medicament insert is started, and the identification of other insert is closed.
After the experiment begins, when the heating of the flask is prompted, the identification of the experimental device card is started, and the identification of other insets is closed.
Referring to FIG. 4, the overall process of this embodiment is illustrated by chemical experiments for chlorine production.
The content brief introduction and prompt of 'laboratory chlorine gas preparation' are firstly displayed in the AR equipment, then the user starts the experiment in a click mode, after the experimental device model is loaded, the experimental equipment which is prepared in the initial state is displayed, but part of the medicament and part of the equipment are lacked according to the content of the experiment.
In the experiment preparation stage, the step of selecting experimental equipment is firstly prompted: the identification of the experimental device artwork is started and the appropriate container is selected. The user presses the separating funnel insert for a long time to trigger the virtual button to complete the selection of the separating funnel, and then the separating funnel is displayed on the experimental equipment.
And then the step of selecting experimental medicaments prompts that: the identification of the experimental drug insert is started and please select the correct drug. The user presses the insert of concentrated hydrochloric acid to trigger a virtual button to complete the selection of concentrated hydrochloric acid, and then concentrated hydrochloric acid is added into the displayed separating funnel.
And continuing prompting in the steps: and (5) starting the recognition of the placement position illustration, and selecting the correct placement mode of the gas collecting bottle. The user presses the long-in short-out illustration to trigger the virtual button to complete the selection of the placing mode. The manifold bottle connections are then shown to have changed.
After the experiment preparation stage is finished, entering an experiment stage, and prompting the following steps: the identification of the test device card is started, the test reagents are mixed, and the round-bottom flask is heated. Then the alcohol lamp card is moved to enable the alcohol lamp to be positioned below the flask for uniform heating.
Then experimental phenomena may be: the experimental device is a separating funnel, and the selected medicament is concentrated hydrochloric acid, so that the phenomena of bubbling and generation of yellow-green gas in a gas collection bottle can be caused; or the arranged experimental equipment is a long-neck funnel, and the selected medicament is hydrochloric acid, so that no reaction phenomenon exists; or the arranged experimental equipment is a long-neck funnel, and the selected medicament is concentrated hydrochloric acid, so that the experimental phenomenon of 'volatile gas overflow' is generated; or the experimental device is a separating funnel, and the selected medicament is hydrochloric acid, so that no reaction phenomenon exists.
Finally, the reason analysis and the summary are completed according to the experimental phenomenon. The AR-based book chemical experiment method and system provided by the embodiment of the invention can accurately generate basic experiment scenes, medicaments and selection of medicines and experimental equipment through image recognition so as to truly simulate experiment phenomena in AR equipment, simulate corresponding error phenomena according to misoperation and give a prompt, so that students can obtain better learning effect.
In the description of the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of embodiments of the invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, embodiments of the invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, embodiments of the present invention provide examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processing module-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of embodiments of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments. In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (6)
1. An AR-based book chemistry experiment method, comprising:
step 10, customizing a chemical book which can be scanned and identified in advance, wherein the chemical book comprises an experimental device illustration, an experimental equipment illustration, an experimental medicament illustration and a matched experimental equipment card;
step 11, scanning and identifying the chemical book through AR equipment to determine the content of a chemical experiment to be performed and loading a corresponding experimental device model;
step 12, in the experiment preparation stage, determining partial experimental equipment lacking in the experimental device model through an experimental equipment illustration selected by an image recognition user, and determining partial experimental medicaments lacking in the experimental device model through an experimental medicament illustration of image recognition;
step 13, in the experimental stage, displaying a medicament mixing scene through AR equipment, prompting the setting of equipment states, identifying the setting of equipment through an image recognition experimental equipment card, displaying a chemical experimental phenomenon scene according to the setting of the experimental equipment and the medicament mixing scene, and analyzing and feeding back errors according to wrong chemical experimental phenomena;
wherein, the step 12 specifically comprises the following substeps:
step 121, prompting to select a part of experimental equipment lacking in the experimental device model and acquiring an experimental equipment illustration through image recognition in an experimental preparation stage;
step 122, displaying an equipment selection interface forming a mapping relation with the experimental equipment illustration through the AR equipment, receiving the selection of a user, and determining the name of the experimental equipment, the placement condition of the equipment and the form parameters of the container;
step 123, prompting to select a part of experimental medicaments lacking in the experimental device model and acquiring an experimental medicament illustration through image recognition;
and 124, displaying a medicament selection interface forming a mapping relation with the experimental medicament illustration through the AR equipment, receiving the selection of the user, and determining the name of the experimental medicament and the parameters of the experimental medicament.
2. The AR-based book chemistry experimental method of claim 1, wherein step 13 comprises:
step 131, in the experimental stage, displaying a medicament mixing scene through the AR device;
step 132, prompting to set equipment states, identifying the experimental equipment card through images to generate a coordinate system, completing operations including position movement, rotation, use and evacuation of the experimental equipment according to the movement of the experimental equipment card, returning coordinate parameters and judging normal operation or errors of the experiment according to the coordinate parameters;
step 133, displaying a chemical experiment phenomenon scene according to the setting of experimental equipment and a medicament mixing scene;
analysis and error feedback is given based on the erroneous chemical experimental phenomenon, step 134.
3. The AR-based book chemistry experiment method of claim 2, wherein step 121 comprises: in the experiment preparation stage, when prompting to select part of experimental equipment lacking in the experimental device model, starting the identification of the experimental equipment illustration, closing the identification of other illustrations except the experimental equipment illustration, and acquiring the experimental equipment illustration through image identification;
step 123 comprises: when part of experimental medicaments lacking in the experimental device model are prompted to be selected, identification of the experimental medicament illustration is started, identification of other illustrations except the experimental medicament illustration is closed, and the experimental medicament illustration is obtained through image identification;
step 132 includes: when the equipment state is prompted to be set, the identification of the experimental equipment card is started, the identification of other insertion pictures except the experimental equipment card is closed, the experimental equipment card is identified through the image to generate a coordinate system, the operation of the experimental equipment including the position movement, rotation, use and evacuation of the equipment is completed according to the movement of the experimental equipment card, the coordinate parameter is returned, and the normal operation or the error of the experiment is judged according to the coordinate parameter.
4. An AR-based book chemistry experiment system, comprising:
the customization module is used for completing the customization of a chemical book which can be scanned and identified in advance, wherein the chemical book comprises an experimental device illustration, an experimental equipment illustration, an experimental medicament illustration and a matched experimental equipment card;
the loading module is used for scanning and identifying the chemical book through the AR equipment to determine the content of a chemical experiment to be performed and loading a corresponding experimental device model;
the preparation module is used for determining partial experimental equipment lacking in the experimental device model through an experimental equipment illustration selected by an image recognition user and determining partial experimental medicaments lacking in the experimental device model through an experimental medicament illustration of image recognition in an experimental preparation stage;
the experiment module is used for displaying a medicament mixing scene through the AR equipment, prompting the setting equipment state, identifying experiment equipment card setting equipment through an image, displaying a chemical experiment phenomenon scene according to the setting of the experiment equipment and the medicament mixing scene, and analyzing and feeding error feedback according to an error chemical experiment phenomenon;
wherein, prepare the module and include:
the equipment identification unit is used for prompting selection of partial experimental equipment lacking in the experimental device model and acquiring an experimental equipment illustration through image identification in an experimental preparation stage;
the equipment determining unit is used for displaying an equipment selecting interface which forms a mapping relation with the experimental equipment illustration through the AR equipment, receiving the selection of a user, and determining the name of the experimental equipment, the placement condition of the equipment and the form parameters of the container;
the medicament identification unit is used for prompting selection of part of experimental medicaments lacking in the experimental device model and acquiring an experimental medicament illustration through image identification;
and the medicament determining unit is used for displaying a medicament selection interface forming a mapping relation with the experimental medicament illustration through the AR equipment, receiving the selection of a user, and determining the name of the experimental medicament and the parameters of the experimental medicament.
5. The AR-based book chemistry experiment system of claim 4, wherein the experiment module comprises:
the first display unit is used for displaying a medicament mixing scene through the AR equipment in an experimental stage;
the card identification unit is used for prompting the equipment state to be set, identifying the experimental equipment card through an image to generate a coordinate system, completing the operations of position movement, rotation, use and evacuation of the experimental equipment according to the movement of the experimental equipment card, returning a coordinate parameter and judging the normal operation or error of the experiment according to the coordinate parameter;
the second display unit is used for displaying a chemical experiment phenomenon scene according to the setting of the experiment equipment and the medicament mixing scene;
and the analysis feedback unit is used for giving analysis and error feedback according to the wrong chemical experiment phenomenon.
6. The AR-based book chemistry experiment system of claim 5, wherein the equipment identification unit is specifically configured to, in an experiment preparation phase, when prompting selection of a part of experimental equipment lacking the experimental device model, start identification of an experimental equipment illustration, close identification of other illustrations except the experimental equipment illustration, and acquire the experimental equipment illustration through image identification;
the medicament identification unit is specifically used for starting identification of an experimental medicament illustration when part of experimental medicaments lacking in the experimental device model are selected, closing identification of other illustrations except the experimental medicament illustration, and acquiring the experimental medicament illustration through image identification;
the card identification unit is specifically used for starting identification of the experimental device card when the device state is prompted to be set, closing identification of other insertion pictures except the experimental device card, generating a coordinate system through image identification of the experimental device card, completing operations including position movement, rotation, use and evacuation of the experimental device according to movement of the experimental device card, returning coordinate parameters and judging normal operation or errors of an experiment according to the coordinate parameters.
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| CN110570737A (en) * | 2019-08-20 | 2019-12-13 | 大连理工大学 | The realization system and method of virtual chemical experiment |
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| CN204537506U (en) * | 2015-01-29 | 2015-08-05 | 上海开放大学 | The experience type multi-screen of subregion is across Media school duty room |
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