Method and system for testing the learning status of a subject
By generating interference signals on the learning platform and detecting response signals, the hardware limitation and learning state detection problems in the existing remote learning monitoring mechanism are solved, and accurate learning state and identity detection without additional hardware is achieved.
Patent Information
- Application Number
- CN202110030607.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2020-12-17
- Filing Date
- 2021-01-11
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2041-01-11
AI Technical Summary
The existing remote learning monitoring mechanism relies on network cameras, which have problems with picture quality limitations, bandwidth limitations and hardware compatibility, and it is difficult to accurately detect students' learning status and identity.
By generating interference signals on the learning platform and detecting the response signal of the person under test in the interactive mode, he or she judges his or her learning status. First, a first interference signal is generated within the first time interval. If no response signal is received, a second interference signal is generated within the second time interval until a response signal is received.
The accurate detection of students' learning status and identity without additional hardware is required, improving the reliability and efficiency of remote learning monitoring.
Smart Images

Figure CN114648039B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a method for testing a subject's learning status and a system for testing a subject's learning status, and in particular to a method for testing a subject's learning status and a system for testing a subject's learning status based on the result of an interactive mode. Background Art
[0002] As technology advances, various digital classrooms, online courses, and distance learning models are also being used in daily life. The advantages of distance learning are convenience, time flexibility, and less restrictions on learning locations. However, the disadvantages of distance learning are that it is difficult to monitor, interaction is poor, and it is impossible to know the students' learning status.
[0003] At present, many mechanisms for monitoring distance learning use webcams to monitor students' learning status and level of interaction. However, webcams have image quality limitations, bandwidth limitations, and hardware compatibility issues. Webcams themselves can also be modified to output fake images. Therefore, the current use of webcams to monitor students' learning status and level of interaction requires not only additional hardware equipment, but also the monitor (such as a teacher) often freezes the picture due to insufficient bandwidth when remotely viewing the output of the webcam, or misjudges the student's learning status due to disconnection, hardware unsupported, poor picture resolution, etc.
[0004] Therefore, developing a method for testing the learning status of a test subject (student) that has the ability to detect whether the student is absent, whether the student's identity is the student himself, and the student's learning status is an important issue in the field of distance learning. Summary of the invention
[0005] The embodiment of the present invention proposes a method for detecting the learning status of a person under test. The method for detecting the learning status of a person under test includes generating a first interference signal on a learning platform within a first time interval; detecting whether a first response signal generated by the person under test in an interactive mode is received within the first time interval; and if the first response signal does not exist within the first time interval, generating a second interference signal on the learning platform within a second time interval, and detecting whether a second response signal generated by the person under test in an interactive mode is received. The interference level of the first interference signal is less than that of the second interference signal, and the second time interval is after the first time interval.
[0006] Another embodiment of the present invention proposes a system for detecting the learning status of a subject. The system for detecting the learning status of a subject includes an image data source and at least one communication device. The image data source is used to generate learning content data. At least one communication device is linked to the image data source to receive the learning content data and display the learning content data. In a first time interval, the communication device generates a first interference signal on the learning platform. In the first time interval, the communication device detects whether a first response signal generated by the subject in an interactive mode is received. If the first response signal does not exist in the first time interval, then in the second time interval, the communication device generates a second interference signal on the learning platform and detects whether a second response signal generated by the subject in an interactive mode is received. The interference degree of the first interference signal is less than that of the second interference signal, and the second time interval is after the first time interval. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 It is a block diagram of an embodiment of a system for testing a subject's learning status according to the present invention.
[0008] Figure 2 yes Figure 1 An architectural diagram of a communication device in a system for determining a subject's learning status.
[0009] Figure 3 yes Figure 1 A schematic diagram showing the change of the interference signal over time as displayed on the screen in a system for testing the learning status of a person under test.
[0010] Figure 4 yes Figure 1 Schematic diagram of a double-period interference signal in a system for testing the learning state of a human subject.
[0011] Figure 5 yes Figure 1 A schematic diagram of introducing the length of idle time in a system for testing a subject's learning status.
[0012] Figure 6 yes Figure 1 Schematic diagram of a half-cycle interference signal in a system for testing the learning state of a human subject.
[0013] Figure 7 yes Figure 1 Schematic diagram of an interference signal with a K-fold period in a system for testing the learning state of a human subject.
[0014] Figure 8 yes Figure 1 A system for testing a subject's learning status, and a flowchart of a method for executing the method for testing a subject's learning status.
[0015] The reference numerals are described as follows:
[0016] 100 System for testing the learning status of the subject
[0017] 10 Image data sources
[0018] PC1 to PCM communication device
[0019] 11 Transmission Ports
[0020] 12 Processor
[0021] 13 Information Device
[0022] 14 Display
[0023] 15 Input Devices
[0024] 16 Memory
[0025] T, 2T, T / 2 and KT cycles
[0026] T1, t1 and t2 time points
[0027] L1 First time interval
[0028] L2 Second time interval
[0029] L3 The third time interval
[0030] IDL idle time length
[0031] L4 Fourth time interval
[0032] L5 Fifth time interval
[0033] Steps S801 to S803 DETAILED DESCRIPTION
[0034] Figure 1 It is a block diagram of an embodiment of the system 100 for testing the learning status of a person under test of the present invention. The system 100 for testing the learning status of a person under test includes an image data source 10 and at least one communication device (such as communication devices PC1 to PCM). The system 100 for testing the learning status of a person under test can also be regarded as a long-distance teaching system. The image data source 10 is used to generate learning content data. The image data source 10 can be a remote computer or a remote server. The communication devices PC1 to PCM are connected to the image data source 10 to receive the learning content data and display the learning content data. M is a positive integer. The communication devices PC1 to PCM can be computers on the subject's side, such as desktop computers, laptop computers, or tablet computers used by students when taking online courses. However, the architecture of the system 100 for testing the learning status of a person under test of the present invention is not limited to Figure 1 For example, the learning content data can be pre-stored in the communication devices PC1 to PCM, and the students can directly open the communication devices PC1 to PCM to browse the learning content data. In this setting, the image data source 10 is only regarded as a receiving end for receiving the learning status report of the students. Any reasonable hardware changes fall within the scope disclosed by the present invention.
[0035] Figure 2 1 is a diagram of the architecture of the communication device PC1 in the system 100 for testing the learning state of the subject. Figure 2 Only the communication device PC1 is used for illustration, and the architectures of the remaining communication devices PC2 to PCM are similar to the communication device PC1. The communication device PC1 includes a transmission port 11, a processor 12, an audio device 13, a display 14, an input device 15, and a memory 16. The processor 12 is coupled to the transmission port 11, the audio device 13, the display 14, the input device 15, and the memory 16. The communication device PC1 can be a computer with a display. The transmission port 11 can be a wired or wireless transmission port. The processor 12 can be a central processing unit (CPU). The audio device 13 can be any multimedia playback device, such as a speaker, a speaker, or a headset. The display 14 can be a liquid crystal display (LCD), a touch display panel, a TV screen, etc. The input device 15 can be any interactive data input device such as a keyboard, a mouse, a handwriting board, etc. The memory 16 can be any data storage device such as a hard disk, a cloud hard disk, a disk drive array, etc. In the communication device PC1, a program for verifying the learning state can be installed in the memory 16. The processor 12 drives the display 14 and the audio device 13 to generate a plurality of interactive signals and interference signals according to the program for determining the learning state stored in the memory 16 to detect the learning state of the student. The student can also use the input device 15 to perform corresponding operations according to at least one interactive signal and interference signal. In other words, the student can use the input device 15 to perform corresponding operations according to the instructions or signals output by the display 14 and / or the audio device 13 to respond to his / her presence and identity. For example, in a first time interval, the communication device PC1 generates a first interference signal on the learning platform (such as the display 14). The communication device PC1 detects whether the first response signal generated by the test person (student) in the interactive mode is received in the first time interval. If the first response signal does not exist in the first time interval, the communication device PC1 generates a second interference signal on the learning platform in the second time interval, and detects whether the second response signal generated by the test person (student) in the interactive mode is received. In addition, the interference degree of the first interference signal mentioned above is less than that of the second interference signal, and the second time interval is after the first time interval. Details of how the system 100 for determining the learning status of a subject detects and determines the learning status and identity of the subject are described below.
[0036] Figure 3 This is a schematic diagram of the interference signal displayed on the screen of the system 100 for testing the learning status of the test subject, which changes over time. In the system 100 for testing the learning status of the test subject, the method of judging whether the test subject (student) is concentrating on the class is to use the interference signal that changes over time to interfere with the fluency of learning. If the student is concentrating on learning, the interference signal will be tried to be eliminated. On the contrary, if the student is absent or has no intention of learning (maybe shrink the window and do other things), the interference signal will gradually increase, as explained below. Figure 3 If the interference signal is an image interference signal, the interference degree of the size, movement trajectory, and / or speed of the interference image will gradually increase with the time delay. If the interference signal is a sound interference signal, the interference degree of the volume and / or frequency of the interference sound will gradually increase with the time delay. For example, within the period T of time index n=0, the number of images corresponding to the interference signal is one. Within the period T of time index n=1, the number of images corresponding to the interference signal is two. Within the period T of time index n=2, the number of images corresponding to the interference signal is four. Within the period T of time index n=3, the number of images corresponding to the interference signal is eight. In addition, the learning platform may include at least one multimedia device. For example, the learning platform of the communication device PC1 may include an audio device 13 and a display 14. Therefore, the interference signal may include an image interference signal and / or a sound interference signal. In addition, the change pattern of the interference signal is not affected by Figure 3 For example, in Figure 3 In the example, the number of images corresponding to the interference signal can be 2 n , n is a time index. In other embodiments, the number of images corresponding to the interference signal may be the output result of any function that increases with time. Furthermore, the image corresponding to the interference signal may appear on the learning platform (such as display 14) in the second half of each cycle T to prevent the student from removing the interference signal at time point T1 and having a bad learning attitude (such as skipping school) in the subsequent time length T-T1 of the single cycle. Any reasonable pattern and mode setting of the interference signal falls within the scope disclosed by the present invention.
[0037] And, in order to detect students’ learning status and identity, Figure 3The time axis (X axis) may introduce a first time interval L1 and a second time interval L2. The first time interval L1 may include P periods T. P may be a positive integer. For example, the first time interval L1 may include 2 periods (P=2T), and one period T may be 300 seconds, then the length of the first time interval L1 may be 600 seconds. The interference signal that changes within the first time interval L1 is called the first interference signal. In other words, within 600 seconds (2T), the number of images corresponding to the first interference signal may be 2 0 =1 becomes 2 1 =2, the interference level becomes stronger over time. If the student has a good learning attitude, is present and focused on the data of the learning content displayed by the display 14, the student should remove the first interference signal within the first time interval L1. In the present invention, the interference signal can be removed by clicking on the screen, clicking on the mouse / keyboard, or using the input device 15 to input any response signal to the processor 12. If the communication device PC1 receives the first response signal within the first time interval L1, it can at least be determined that the student is present (the identity has not yet been determined). On the contrary, if the communication device PC1 has not received the first response signal within the first time interval L1, it implies that the student's learning attitude is poor and absent-minded, or the person is not present at all, and the interference signal of the communication device PC1 will continue to strengthen. For example, in the second time interval L2 after the first time interval L1, the number of images corresponding to the second interference signal can be increased from 2 2 =4 becomes 2 3 =8, and so on. If the communication device PC1 receives the second response signal within the second time interval L2, it means that the student is likely to come back or start learning within the second time interval L2. In other words, the concept of detecting the learning state of the system 100 for testing the learning state of the test subject is: the communication device PC1 gradually increases the degree of interference of the image and / or sound over time, and then detects when the test subject (student) removes it. If the test subject (student) removes the interference in a short time, it means that the learning state of the test subject (student) is good. On the contrary, if the test subject (student) does not remove the interference for a long time, it means that the learning state of the test subject (student) is poor.
[0038] Figure 4It is a schematic diagram of an interference signal with a double period (2T) in the system 100 for testing the learning status of the subject. As mentioned above, if the communication device PC1 receives a first response signal within the first time interval L1, it indicates that the student's learning status is good and that the student is an excellent subject. Therefore, the communication device PC1 can reduce the frequency and interference intensity of the first interference signal, and the implementation method is described as follows. If the communication device PC1 receives a first response signal within the first time interval L1, then in the subsequent third time interval L3, the time index (n=0) can be reset, and the communication device PC1 can generate a third interference signal with a period of 2T on the learning platform. In addition, since the time index is reset (n=0), the number of images corresponding to the third interference signal is initialized to 2. 0 In other words, the interference degree of the third interference signal is not greater than that of the first interference signal, and the third time interval L3 is after the first time interval L1. The system 100 for testing the learning state of the test subject will continue to detect whether the third response signal generated by the test subject in the interactive mode is received. Similarly, if the system 100 for testing the learning state of the test subject receives the third response signal, the trust in the good test subject will be increased, so the period of the interference signal will be increased (such as adjusted to 4T), and so on.
[0039] Figure 5 1 is a schematic diagram of an idle time length IDL introduced in a system 100 for testing a subject's learning state. Here, the idle time length IDL is defined as the time difference from when the system is initialized and turned on to when the first response signal is received, or the time difference between the last and current response signals received. Figure 5 In the example, the communication device PC1 receives a response signal at time point t1, and the communication device PC2 receives a response signal at time point t2. Therefore, the idle time length IDL is t2-t1=3T. In addition, the communication device PC1 can calculate the idle time length IDL. If the idle time length IDL is greater than the first threshold value, the communication device PC1 detects whether the interference signal is responded to on the learning platform. For example, Figure 5 In the example, the first threshold value can be set to a time length of three cycles (3T). If the idle time length IDL is greater than the time length of three cycles (3T), then after time point t2, the communication device PC1 will detect whether the interference signal is responded to on the learning platform. Figure 3 In the example, the first threshold value can be set to the time length of two cycles (2T), which is equivalent to the first time interval L1. If the idle time length IDL is greater than the time length of two cycles (2T), after the first time interval L1, the communication device PC1 detects whether the interference signal is responded to on the learning platform. In other words, the idle time length IDL can be regarded as a tolerance value for identifying whether the learning state of the subject (student) is good or bad.
[0040] Figure 6 It is a schematic diagram of a half-cycle (T / 2) interference signal in the system 100 for testing the learning status of the subject. As mentioned above, the idle time length IDL can be regarded as a tolerance value for identifying whether the learning status of the subject (student) is good or bad. If the communication device PC1 receives the fourth response signal generated by the subject in the interactive mode after the idle time length IDL is greater than the first threshold value, it means that the subject's response has exceeded the reaction time defined by the system, suggesting that the learning attitude is not good (the person may be not in his seat or distracted). Therefore, the communication device PC1 will shorten the period of generating the interference signal to intensively monitor the learning status of the subject. For example, if Figure 6 As shown, if the response of the person under test exceeds the reaction time defined by the system, the communication device PC1 will generate a fourth interference signal with a period of (T / 2, half of the original period T) in the fourth time interval L4. In addition, the initialization number of images corresponding to the fourth interference signal is not 2 0 In other embodiments, the number of images initialized corresponding to the fourth interference signal may be greater than 2. 0 In other words, if the response of the subject exceeds the reaction time defined by the system, it means that the subject may be in a poor learning state and is a bad subject. Therefore, the system 100 for determining the learning state of the subject will monitor the bad subjects more strictly. The implementation method for monitoring the bad subjects more strictly is that the communication device PC1 generates a short-period, high-frequency, and high-intensity interference signal on the learning platform to intensively detect the learning state.
[0041] As mentioned above, the system 100 for detecting the learning status of the test subject can generate interference signals with short periods, high frequencies, and high strengths on the learning platform to intensively detect the poor learning status of the test subject. Subsequently, if the test subject generates at least one response signal in the interactive mode within a predetermined time length, it indicates that the learning status of the test subject has improved. For example, if Figure 6As shown, the communication device PC1 generates a fourth interference signal with a period of (T / 2, half of the original period T) within the fourth time interval L4, with the purpose of intensively detecting the learning state of the poor subject. Subsequently, if the subject removes the fourth interference signal in real time within the fourth time interval L4 (for example, by clicking with a mouse to generate at least one response signal), it means that the learning state of the subject has improved. The poor subject has been transformed into a normal subject. Therefore, the communication device can increase the period of generating the interference signal (such as changing it to period T) to continuously monitor the learning state of the subject. In other words, in the system 100 of the learning state of the subject, the period of the interference signal will also dynamically change with the reaction of the subject. For the above embodiment, the process of period and subject behavior change can be described as follows: period (T) → poor subject → period (T / 2) → normal subject → period (T).
[0042] Figure 7 1 is a schematic diagram of a K-times period interference signal in the system 100 for testing the learning status of the subject. As mentioned above, if the idle time length IDL is less than (or equal to) the threshold value (hereinafter referred to as the second threshold value), the communication device PC1 can reduce the interference frequency and detect whether the interference signal is responded to on the learning platform. Figure 7 The communication device PC1 can calculate the idle time length. If the idle time length is less than or equal to the second threshold value, the communication device PC1 detects whether the fifth interference signal is responded to on the learning platform. If the communication device PC1 receives the fifth response signal generated by the subject in the interactive mode after the idle time length IDL is less than or equal to the second threshold value, the communication device PC1 can increase the period of generating the interference signal in the fifth time interval L5 to monitor the learning status of the subject. It should be understood that Figure 7 and Figure 4 The difference is that the period of the interference signal generated in the fifth time interval L5 can be KT, which is not limited by 2T, and K is a positive integer greater than 1. For example, for a very good test subject, the communication device PC1 can significantly reduce the interference frequency, for example, setting K=4. Under such a setting, assuming that the initialization period T=300 seconds, for a very good test subject, the communication device PC1 can set the period of the interference signal to 1200 seconds (4T), which significantly reduces the screen interference for the very good test subject, so that he can concentrate on learning. Therefore, the system 100 of the test subject's learning state has a high design flexibility.
[0043] In the aforementioned embodiment, the system 100 for the learning status of the subject can report to the image data source 10 (e.g., the monitor end, the computer end used by the teacher) according to the set period of the interference signal, the interference intensity, and the time point of the subject (student) response to determine the student's learning status and attendance rate. However, further, the system 100 for the learning status of the subject can also determine the identity of the subject to avoid the situation of finding someone to take the class on his behalf, as described below. The communication device PC1 can calculate the idle time length IDL. If the idle time length IDL is greater than the third threshold value, the communication device PC1 can detect whether the sixth interference signal is responded to on the learning platform. The sixth interference signal includes the subject's identity recognition data. For example, the third threshold value can be set to three cycles (3T). If the idle time length IDL is greater than three cycles, the sixth interference signal generated by the communication device PC1 can have an identity recognition function, such as generating the subject's birthday, test score, ID number, etc., and prompting the subject to input it into the processor 12. If the communication device PC1 does not receive the sixth response signal generated by the subject in the interactive mode, or receives an erroneous sixth response signal, it means that the subject is not at his seat (absent), has a bad learning attitude, or is not himself at all. Subsequently, the communication device PC1 can store the period of the sixth interference signal. In addition, since the subject can be regarded as a bad subject, or even suspected of being a substitute, the communication device PC1 can directly shorten the period when performing a learning status detection next time, as an initial value of the period for generating the interference signal. For example, the communication device PC1 can directly generate an interference signal in a mode with a period of T / 2 when performing a learning status detection next time, so as to intensively observe the learning status of the subject.
[0044] Furthermore, in the system 100 for the learning state of the test subject, a setting of an upper limit of the number of wrong answers can be introduced to increase the design flexibility. Figure 3 If the number of wrong answers to the first response signal received by the communication device PC1 within the first time interval or the number of wrong answers to the second response signal received by the communication device PC1 within the second time interval is greater than the upper limit of wrong answers (continuous wrong answers), the communication device PC1 can generate information that the subject is not the subject, and transmit this information to the image data source 10 for the monitor's reference. On the contrary, if the number of wrong answers is less than or equal to the upper limit of wrong answers, the communication device PC1 will continue to monitor the learning status of the subject.
[0045] Furthermore, as mentioned above, the interference signal generated by the communication device PC1 may include an image interference signal and / or a sound interference signal. For example, the interference signal may be set as an image interference signal first. The image interference signal gradually increases its interference level on the learning platform over time. Subsequently, the interference signal introduces a sound interference signal. At this time, the image interference signal and the sound interference signal will appear on the learning platform at the same time, causing great interference to the subject and making the subject want to remove the interference signal (response). Furthermore, the image interference signal can usually be used to guide the subject to eliminate interference first. Therefore, the learning platform may first introduce image interference and then introduce sound interference. Alternatively, the learning platform may introduce image and sound interference at the same time. In order to avoid interfering with the classroom mixing, the sound interference signal does not require the microphone to be turned on, but uses a switch or other button to eliminate interference. Furthermore, the moving trajectory and movement mode of the image interference signal screen can also be set over time. For example, the screen of the image interference signal may be horizontally moved or vertically moved in the early stage, with a speed of 1 unit. The screen of the image interference signal may be randomly or irregularly moved in the later stage, with a speed of 1.3 units. The above parameters can be customized. Similarly, the volume and frequency of the sound interference signal can also be set over time. For example, the volume of the sound interference signal will be 1.3 times louder in each cycle. If there are more than two command sounds in one cycle, the frequencies of the command sounds can be different. Any reasonable technical changes fall within the scope of the present invention.
[0046] Figure 8 1 is a flow chart of a method for testing a learning state of a human subject executed by a system 100 for testing a learning state of a human subject. The method for testing a learning state of a human subject includes steps S801 to S803. Steps S801 to S803 are described as follows:
[0047] Step S801: generating a first interference signal on a learning platform within a first time interval L1;
[0048] Step S802: Detecting whether a first response signal generated by the subject in the interactive mode is received within a first time interval;
[0049] Step S803: If the first response signal does not exist in the first time interval, then in the second time interval, a second interference signal is generated on the learning platform, and it is detected whether the second response signal generated by the subject in the interactive mode is received.
[0050] The details of step S801 to step S803 have been described in detail in the previous text, so they will not be repeated here. By executing steps S801 to step S803, the system 100 for testing the learning status of the testee can detect whether the testee is present, the degree of concentration in learning, and the interactive response of learning. Even after the system 100 for testing the learning status of the testee introduces the interference information of the identity recognition data, it can further identify whether the testee is responding in person. Therefore, the system 100 for testing the learning status of the testee can allow the monitor to fully grasp the remote learning status of the testee (student) and has a high degree of reliability.
[0051] In summary, the present invention describes a method for detecting the learning status of a subject and a system for detecting the learning status of a subject. The method for detecting the learning status of a subject and the system for detecting the learning status of a subject do not require additional hardware (such as a network camera) to grasp the remote learning status of the subject (student), including whether the subject is present, the degree of concentration in learning, and the interactive response to learning. The system for detecting the learning status of a subject utilizes an interference signal with adjustable frequency, interference intensity, and identity recognition function, and cooperates with the subject's response timing to determine the learning status of the subject. Therefore, the system for detecting the learning status of a subject described in the present invention, in addition to not requiring additional hardware, also has a very high detection reliability.
[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A method for testing a subject's learning status, characterized in that: include: In a first time interval, a first interference signal is generated on the learning platform; In the first time interval, detecting whether a first response signal generated by the subject in the interactive mode is received; and If the first response signal does not exist in the first time interval, then in the second time interval, a second interference signal is generated on the learning platform, and whether the second response signal generated by the subject in the interactive mode is received is detected; Calculate the length of idle time; If the idle time length is greater than a first threshold value, detecting whether a fourth interference signal is responded to on the learning platform; If a fourth response signal generated by the subject in the interactive mode is received after the idle time length is greater than the first threshold value, shortening the period of generating the fourth interference signal to intensively monitor the learning state of the subject; and After shortening the period of generating the fourth interference signal to intensively monitor the learning state of the subject, if the subject generates at least one response signal in the interactive mode within a predetermined time length, increasing the period of generating the fourth interference signal to continuously monitor the learning state of the subject; The idle time length is the time difference from when the system is initialized and started to when the first response signal is received, or the time difference between the response signal received last time and this time, the interference level of the first interference signal is less than that of the second interference signal, and the second time interval is after the first time interval.
2. The method according to claim 1, characterized in that Also includes: If the first response signal is received within the first time interval, a third interference signal is generated on the learning platform within a third time interval, and a third response signal generated by the subject in the interactive mode is detected; The interference degree of the third interference signal is not greater than that of the first interference signal, and the third time interval is after the first time interval.
3. The method according to claim 1, characterized in that Also includes: Calculating the length of the idle time; If the idle time length is less than or equal to a second threshold value, detecting whether a fifth interference signal is responded to on the learning platform; and If a fifth response signal generated by the subject in the interactive mode is received after the idle time length is less than or equal to the second threshold value, the period of generating the fifth interference signal is increased to monitor the learning state of the subject.
4. The method according to claim 1, characterized in that Also includes: Calculating the length of the idle time; If the idle time length is greater than a third threshold value, detecting whether a sixth interference signal is responded to on the learning platform, wherein the sixth interference signal includes the identity recognition data of the subject; If the sixth response signal generated by the subject in the interactive mode is not received, or an erroneous sixth response signal is received, storing the period of the sixth interference signal; and When the learning state is detected next time, the period of the sixth interference signal is directly shortened to serve as an initial value of the period of generating the sixth interference signal.
5. The method according to claim 1, characterized in that The learning platform includes at least one multimedia device, and the first interference signal includes an image interference signal and / or a sound interference signal.
6. The method according to claim 5, characterized in that As time goes by, the interference level of the image interference signal in terms of size, movement trajectory, and / or speed gradually increases, and the interference level of the sound interference signal in terms of volume and / or frequency gradually increases.
7. The method according to claim 1, characterized in that Generating the first interference signal on the learning platform within the first time interval means generating the first interference signal on the learning platform within the second half of the first time interval.
8. The method according to claim 1, characterized in that Also includes: Set a maximum number of incorrect answers; If the number of wrong answers to the first response signal or the second response signal is greater than the upper limit of wrong answers The number generates information that the person being tested is not the person himself; and If the number of wrong answers to the first response signal and the second response signal is less than or equal to the upper limit of wrong answers, the learning status of the subject continues to be monitored.
9. A system for testing the learning status of a subject, characterized in that: include: Image data source, used to generate learning content data; and at least one communication device, connected to the image data source, for receiving the learning content data and displaying the learning content data; Wherein, within a first time interval, the communication device generates a first interference signal on the learning platform, and within the first time interval, the communication device detects whether a first response signal generated by the subject in the interactive mode is received. If the first response signal does not exist within the first time interval, then within a second time interval, the communication device generates a second interference signal on the learning platform, and detects whether a second response signal generated by the subject in the interactive mode is received. The communication device calculates the length of idle time. If the length of idle time is greater than a first threshold value, the communication device detects whether a fourth interference signal is responded to on the learning platform. If the communication device receives a fourth response signal generated by the subject in the interactive mode after the idle time length is greater than the first threshold value, the communication device shortens the period of generating the fourth interference signal to intensively monitor the learning status of the subject. wherein after the communication device shortens the period of generating the fourth interference signal to intensively monitor the learning state of the subject, if the subject generates at least one response signal in the interactive mode within a predetermined time length, the communication device increases the period of generating the fourth interference signal to continuously monitor the learning state of the subject; and The idle time length is the time difference from when the system is initialized and started to when the first response signal is received, or the time difference between the response signal received last time and this time, the interference level of the first interference signal is less than that of the second interference signal, and the second time interval is after the first time interval.
10. The system according to claim 9, characterized in that If the communication device receives the first response signal within the first time interval, then within the third time interval, the communication device generates a third interference signal on the learning platform, and detects whether the third response signal generated by the subject in the interactive mode is received, the interference level of the third interference signal is not greater than that of the first interference signal, and the third time interval is after the first time interval.
11. The system according to claim 9, characterized in that The communication device calculates the length of the idle time. If the length of the idle time is less than or equal to a second threshold value, the communication device detects whether a fifth interference signal is responded to on the learning platform. If the communication device receives a fifth response signal generated by the subject in the interactive mode after the length of the idle time is less than or equal to the second threshold value, the communication device increases the period of generating the fifth interference signal to monitor the learning status of the subject.
12. The system according to claim 9, characterized in that The communication device calculates the length of the idle time. If the length of the idle time is greater than a third threshold value, the communication device detects whether a sixth interference signal is responded to on the learning platform. The sixth interference signal includes the identity recognition data of the subject. If the communication device does not receive the sixth response signal generated by the subject in the interactive mode, or receives an erroneous sixth response signal, the period of the sixth interference signal is stored, and the communication device directly shortens the period of the sixth interference signal when performing the learning state detection next time, so as to serve as the initial value for generating the period of the sixth interference signal.
13. The system of claim 9, wherein: The learning platform includes at least one multimedia device, and the first interference signal includes an image interference signal and / or a sound interference signal.
14. The system of claim 13, wherein: As time goes by, the interference level of the image interference signal in terms of size, movement trajectory, and / or speed gradually increases, and the interference level of the sound interference signal in terms of volume and / or frequency gradually increases.
15. The system of claim 9, wherein: The communication device generates the first interference signal on the learning platform in the second half of the first time interval.
16. The system of claim 9, wherein: The communication device sets an upper limit on the number of incorrect answers. If the number of incorrect answers to the first response signal or the second response signal is greater than the upper limit, the communication device generates information that the subject is not the subject himself. If the number of incorrect answers to the first response signal and the second response signal is less than or equal to the upper limit, the communication device continues to monitor the learning status of the subject.
Citation Information
Patent Citations
Method for video playing and electronic terminal
CN106488318A
Online learning method, device, equipment and medium
CN109754661A