CN112447074A - Real-time online education system and method - Google Patents
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- G—PHYSICS
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- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/08—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations
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- G10L15/26—Speech to text systems
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- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
- G10L2015/221—Announcement of recognition results
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- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
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Abstract
The invention discloses a real-time online education system and a real-time online education method, and relates to the technical field of online education. The system comprises: a student-side wearable device provided for students to use; the student-end wearable device includes: a student end VR helmet; the student end VR helmet is connected into a network; a student end voice system is arranged on the student end VR helmet; the student end voice system comprises: the student terminal voice recording device and the student terminal command recognition device; the wearable equipment is provided for the teacher to use; the teacher-side wearable device comprises: a teacher end VR helmet; the teacher end VR helmet is connected into a network; a voice system at the teacher end is arranged on the VR helmet at the teacher end; the teacher-side voice system comprises: teacher's voice recording device and teacher's command recognizing device. The method has the advantages of good teaching immersion, good teaching effect and low cost.
Description
Technical Field
The invention relates to the technical field of videos, in particular to a real-time online education system and a real-time online education method.
Background
An existing VR all-in-one machine or VR box (the main body is a mobile phone) depends on a host machine of an ARM inner core CPU matched with an intelligent android system or an apple IOS system. The machine itself is a game and video content resource which has certain graphic image processing capacity and is matched with the system to run. In popular terms, this is an ecological problem of software. The android camp, which takes google as the head, and the IOS of apple have own game ecology. The existing VR equipment possibly has unsupported conditions for online education, and customer experience is affected.
The virtual reality technology is an important direction of the simulation technology, is a collection of various technologies such as the simulation technology, the computer graphics man-machine interface technology, the multimedia technology, the sensing technology, the network technology and the like, and is a challenging advanced subject and research field of cross technologies. Virtual reality technology (VR) mainly includes aspects of simulating environment, perception, natural skills, sensing equipment and the like. The simulated environment is a three-dimensional realistic image generated by a computer and dynamic in real time. Perception means that an ideal VR should have the perception that everyone has. In addition to the visual perception generated by computer graphics technology, there are also perceptions such as auditory sensation, tactile sensation, force sensation, and movement, and even olfactory sensation and taste sensation, which are also called multi-perception. The natural skill refers to the head rotation, eyes, gestures or other human body behavior actions of a human, and data adaptive to the actions of the participants are processed by the computer, respond to the input of the user in real time and are respectively fed back to the five sense organs of the user. The sensing device refers to a three-dimensional interaction device.
A method for content dissemination and fast learning by applying information technology and Internet technology. "E" of E-Learning represents E-Learning, efficient Learning, exploratory Learning, empirical Learning, extended Learning, easy-to-use Learning, enhanced Learning. The united states is the origin of e-Learning, and 60% of businesses train their employees over a network. After 1998, e-Learning has emerged worldwide, rapidly expanding from north america, europe to asian regions. More and more domestic enterprises have expressed a strong interest in e-Learning and have begun to implement e-Learning solutions.
According to the American Society for Training and Development (ASTD) forecast, 90% of all companies with employees over 500 will adopt e-Learning training by 2010, and e-Learning is becoming the right choice for the economic era of knowledge. It should be noted that e-Learning is not just a technology, but is just a means of transferring content, and is itself and a huge revolution through Learning, which is the main meaning of e-Learning.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a real-time online education system and a real-time online education method, which have the advantages of good teaching immersion, good teaching effect and low cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
a real-time online education system, the system comprising: a student-end wearable device provided for use by a student; the student-end wearable device includes: a student end VR helmet; the student end VR helmet is connected into a network; a student end voice system is arranged on the student end VR helmet; the student end voice system comprises: the student terminal voice recording device and the student terminal command recognition device;
the wearable equipment is provided for the teacher to use; the teacher-side wearable device comprises: a teacher end VR helmet; the teacher end VR helmet is connected into a network; a voice system at the teacher end is arranged on the VR helmet at the teacher end; the teacher-side voice system comprises: teacher's voice recording device and teacher's command recognizing device.
Further, the student end VR headset comprises: the three-dimensional virtual environment generator comprises a three-dimensional virtual environment generator and a display part thereof, a signal acquisition part consisting of a sensor and an information output part consisting of external equipment.
Further, the teacher end VR headset also includes: the three-dimensional virtual environment generator comprises a three-dimensional virtual environment generator and a display part thereof, a signal acquisition part consisting of a sensor and an information output part consisting of external equipment.
Further, the student end voice input system comprises: a recording device and a control button; the control button can control the operation of the input device, and the input device can be switched between a working state and a stopping state by pressing the control button; the teacher-side voice recording system also comprises: a recording device and a control button; the control button can control the operation of the recording device, and the recording device can be switched between a working state and a stopping state by pressing the control button.
Furthermore, the student end command recognition device and the teacher end command recognition device can both recognize the received voice command.
Further, student end VR helmet and teacher end VR helmet all include: a communication module; the communication module includes: bluetooth, Zigbee, UWB, WLAN, wireless USB, infrared communication and radio frequency identification unit.
Further, student end VR helmet and teacher end VR helmet all include: a VR chip; the VR chip includes: the device comprises a physiological signal acquisition low noise amplifier, an AD converter, a digital signal processing baseband and a radio frequency transceiver.
A method of real-time online education, the method further comprising:
the student end accesses an online education network through the VR helmet of the student end; the teacher accesses the online education system through the VR helmet of the teacher;
the student end inputs voice through the student end voice input device, and the student end command recognition device simultaneously recognizes the voice command input by the student end voice input device;
the teacher end records voice through the teacher end voice recording device, and the teacher end command recognition device recognizes the voice command recorded by the student end voice recording device at the same time.
Furthermore, the student end command recognition device simultaneously recognizes the voice command recorded by the student end voice recording device; the method for simultaneously recognizing the voice commands recorded by the student-side voice recording device by the teacher-side command recognition device comprises the following steps: acquiring a recorded voice command; recognizing the recorded voice command by using a first voice recognition method to obtain a first voice recognition result, and recognizing the recorded voice command by using a second voice recognition method to obtain a second voice recognition result; and comparing the first voice recognition result with the second voice recognition result, outputting the voice recognition result according to the comparison result, and displaying.
Further, the first speech recognition method and the second speech recognition method each include: acquiring the voice of the user; a voice recognition step of converting the acquired voice into text data as an initial voice recognition result through a language recognition process; and an error correction step of referring to an error correction list recorded with a plurality of original vocabulary-deviation vocabulary associations, and if a deviation vocabulary in one of the original vocabulary-deviation vocabulary associations of the error correction list exists in the initial voice recognition result, performing error correction processing to replace the vocabulary in the initial voice recognition result, which is the same as the deviation vocabulary, with the original vocabulary in the original vocabulary-deviation vocabulary associations, so as to obtain an error-corrected voice recognition result, which is used as the voice recognition result generated by the voice recognition method.
Compared with the prior art, the invention has the following beneficial effects: the method has the advantages of good teaching immersion, good teaching effect and low cost.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
fig. 1 is a schematic system structure diagram of a real-time online education system disclosed in an embodiment of the present invention.
Fig. 2 is a schematic method flow diagram of a real-time online education method disclosed in the embodiment of the invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Example 1
As shown in fig. 1, a real-time online education system, the system comprising: a student-end wearable device provided for use by a student; the student-end wearable device includes: a student end VR helmet; the student end VR helmet is connected into a network; a student end voice system is arranged on the student end VR helmet; the student end voice system comprises: the student terminal voice recording device and the student terminal command recognition device;
the wearable equipment is provided for the teacher to use; the teacher-side wearable device comprises: a teacher end VR helmet; the teacher end VR helmet is connected into a network; a voice system at the teacher end is arranged on the VR helmet at the teacher end; the teacher-side voice system comprises: teacher's voice recording device and teacher's command recognizing device.
Example 2
On the basis of the above embodiment, the student end VR headset comprises: the three-dimensional virtual environment generator comprises a three-dimensional virtual environment generator and a display part thereof, a signal acquisition part consisting of a sensor and an information output part consisting of external equipment.
Example 3
On the basis of the above embodiment, the teacher-side VR headset also includes: the three-dimensional virtual environment generator comprises a three-dimensional virtual environment generator and a display part thereof, a signal acquisition part consisting of a sensor and an information output part consisting of external equipment.
Example 4
On the basis of the previous embodiment, the student-side voice entry system comprises: a recording device and a control button; the control button can control the operation of the input device, and the input device can be switched between a working state and a stopping state by pressing the control button; the teacher-side voice recording system also comprises: a recording device and a control button; the control button can control the operation of the recording device, and the recording device can be switched between a working state and a stopping state by pressing the control button.
Example 5
On the basis of the previous embodiment, the student-side command recognition device and the teacher-side command recognition device can both recognize the received voice command.
Example 6
On the basis of the above embodiment, the student-side VR headset and the teacher-side VR headset each include: a communication module; the communication module includes: bluetooth, Zigbee, UWB, WLAN, wireless USB, infrared communication and radio frequency identification unit.
Example 7
On the basis of the above embodiment, the student-side VR headset and the teacher-side VR headset each include: a VR chip; the VR chip includes: the device comprises a physiological signal acquisition low noise amplifier, an AD converter, a digital signal processing baseband and a radio frequency transceiver.
In particular, the acquisition of physiological signals is generally obtained by on-chip integrated biosensors. For convenient integration, the sensor is realized by a low-noise amplifier of a CMOS process, and can convert biological signals into biological electric signals. In order to obtain various physiological information simultaneously, a plurality of amplifiers with different functions can be integrated on a chip to form a multi-channel so as to acquire physical parameters such as blood pressure, blood oxygen saturation, respiratory rate, heartbeat, body temperature and the like. Because physiological signals of a human body are weak and are easily interfered by noise of the surrounding environment, the amplifier has high sensitivity, high gain, low noise and low power consumption; meanwhile, a low-pass filter with the cut-off frequency of about 1kHz is used behind the amplifier to further filter out interference noise of other frequencies except the bioelectricity signal. The amplifier can be designed into a plurality of working modes, such as monitoring, working and sleeping modes, so as to reduce the power consumption of the chip.
The preposed multi-channel physiological signal acquisition amplifier acquires various physiological information and is connected to an input port of the ADC through the analog multiplexer, and the analog multiplexer can only select the output of one preamplifier at a time. In order to reduce power consumption, the ADC generally adopts a successive approximation structure with a bit number of about 10 bits. In order to improve the precision and the conversion rate, an ADC with a sigma-delta or a pipelined structure can be adopted, the higher the bit number is, the higher the conversion rate is, but the power consumption is also larger, and the low power consumption is the key for designing a wearable medical chip. In addition, the unit capacitance of the ADC is properly selected, which occupies a large chip area, and the influence of the parasitic capacitance on the unit capacitance is considered to be reduced as much as possible.
In order to improve the speed, accuracy and safety of data transmission, digital signals output by the ADC need to be digitally compressed and encoded by a digital signal processor baseband processor, and interference frequency noise can be further filtered by FFT conversion and digital filtering.
Because the wearable medical chips are required to be arranged at different parts of a human body according to physiological characteristics for acquiring physiological signals of the human body, the existence of interconnection wires among the chips causes inconvenient activities, and the wires are too many to be easily wound and cause discomfort, the wireless method for transmitting signals and data is the most direct and natural method. The integration of a wireless radio frequency transceiver on a wearable medical system chip is very different from the key problem to be considered and the problem concerned by the application of general wireless products. Firstly, the method is an asymmetric wireless transmission mode, mainly collects human body signals and transmits the human body signals, and the received signals mainly come from some control commands and have small data volume, so that a half-duplex communication mode can be adopted, and downlink low-speed transmission and uplink high-speed transmission are adopted. Secondly, the chip needs to work for a long time, and the battery used for the wearable chip is generally a button battery, the working voltage is between 1.2 and 1.5V, and the battery capacity is less than hundreds of mA.h. The wireless transceiver is usually the most power consuming part of the chip, and designers have faced with the difficulties of low operating voltage, low power consumption and high transmission rate, so that the structure adopted by the wireless transceiver and the implementation of key technologies such as carrier frequency, transmission mode, modulation mode, transmission rate and power consumption need to be considered carefully.
Example 8
A method of real-time online education, the method further comprising:
the student end accesses an online education network through the VR helmet of the student end; the teacher accesses the online education system through the VR helmet of the teacher;
the student end inputs voice through the student end voice input device, and the student end command recognition device simultaneously recognizes the voice command input by the student end voice input device;
the teacher end records voice through the teacher end voice recording device, and the teacher end command recognition device recognizes the voice command recorded by the student end voice recording device at the same time.
Example 9
On the basis of the previous embodiment, the student end command recognition device simultaneously recognizes the voice command recorded by the student end voice recording device; the method for simultaneously recognizing the voice commands recorded by the student-side voice recording device by the teacher-side command recognition device comprises the following steps: acquiring a recorded voice command; recognizing the recorded voice command by using a first voice recognition method to obtain a first voice recognition result, and recognizing the recorded voice command by using a second voice recognition method to obtain a second voice recognition result; and comparing the first voice recognition result with the second voice recognition result, outputting the voice recognition result according to the comparison result, and displaying.
Example 10
On the basis of the above embodiment, the first speech recognition method and the second speech recognition method each include: acquiring the voice of the user; a voice recognition step of converting the acquired voice into text data as an initial voice recognition result through a language recognition process; and an error correction step of referring to an error correction list recorded with a plurality of original vocabulary-deviation vocabulary associations, and if a deviation vocabulary in one of the original vocabulary-deviation vocabulary associations of the error correction list exists in the initial voice recognition result, performing error correction processing to replace the vocabulary in the initial voice recognition result, which is the same as the deviation vocabulary, with the original vocabulary in the original vocabulary-deviation vocabulary associations, so as to obtain an error-corrected voice recognition result, which is used as the voice recognition result generated by the voice recognition method.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process and related description of the system described above may refer to the corresponding process in the foregoing method embodiments, and will not be described herein again.
It should be noted that, the system provided in the foregoing embodiment is only illustrated by dividing the functional modules, and in practical applications, the functions may be distributed by different functional modules according to needs, that is, the modules or steps in the embodiment of the present invention are further decomposed or combined, for example, the modules in the foregoing embodiment may be combined into one module, or may be further split into multiple sub-modules, so as to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the present invention are only for distinguishing the modules or steps, and are not to be construed as unduly limiting the present invention.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes and related descriptions of the storage device and the processing device described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
Those of skill in the art would appreciate that the various illustrative modules, method steps, and modules described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that programs corresponding to the software modules, method steps may be located in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. To clearly illustrate this interchangeability of electronic hardware and software, various illustrative components and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as electronic hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing or implying a particular order or sequence.
The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A real-time online education system, characterized in that the system comprises: a student-side wearable device provided for students to use; the student-end wearable device includes: a student end VR helmet; the student end VR helmet is connected into a network; a student end voice system is arranged on the student end VR helmet; the student end voice system comprises: the student terminal voice recording device and the student terminal command recognition device;
the wearable equipment is provided for the teacher to use; the teacher-side wearable device comprises: a teacher end VR helmet; the teacher end VR helmet is connected into a network; a voice system at the teacher end is arranged on the VR helmet at the teacher end; the teacher-side voice system comprises: teacher's voice recording device and teacher's command recognizing device.
2. The real-time online education system of claim 1 wherein the student end VR headset includes: the three-dimensional virtual environment generator comprises a three-dimensional virtual environment generator and a display part thereof, a signal acquisition part consisting of a sensor and an information output part consisting of external equipment.
3. The real-time online education system of claim 2 wherein the teacher-side VR headset includes: the three-dimensional virtual environment generator comprises a three-dimensional virtual environment generator and a display part thereof, a signal acquisition part consisting of a sensor and an information output part consisting of external equipment.
4. A real-time online education system as claimed in claim 1 wherein the student-side voice entry system includes: a recording device and a control button; the control button can control the operation of the input device, and the input device can be switched between a working state and a stopping state by pressing the control button; the teacher-side voice recording system also comprises: a recording device and a control button; the control button can control the operation of the recording device, and the recording device can be switched between a working state and a stopping state by pressing the control button.
5. A real-time online education system as claimed in claim 1 wherein the student-side command recognition means and the teacher-side command recognition means are each capable of recognizing the received voice command.
6. The real-time online education system of claim 3 wherein the student-side VR helmet and the teacher-side VR helmet each include: a communication module; the communication module includes: bluetooth, Zigbee, UWB, WLAN, wireless USB, infrared communication and radio frequency identification unit.
7. The real-time online education system of claim 1 wherein the student-side VR helmet and the teacher-side VR helmet each include: a VR chip; the VR chip includes: the device comprises a physiological signal acquisition low noise amplifier, an AD converter, a digital signal processing baseband and a radio frequency transceiver.
8. A method of real-time online education based on the system of one of claims 1 to 7, characterized in that the method further comprises:
the student end accesses an online education network through the VR helmet of the student end; the teacher accesses the online education system through the VR helmet of the teacher;
the student end inputs voice through the student end voice input device, and the student end command recognition device simultaneously recognizes the voice command input by the student end voice input device;
the teacher end records voice through the teacher end voice recording device, and the teacher end command recognition device recognizes the voice command recorded by the student end voice recording device at the same time.
9. A method of real-time online education as recited in claim 8 wherein the method of the student side command recognition device simultaneously recognizing the voice commands entered by the student side voice entry device and the teacher side command recognition device simultaneously recognizing the voice commands entered by the student side voice entry device comprises: acquiring a recorded voice command; recognizing the recorded voice command by using a first voice recognition method to obtain a first voice recognition result, and recognizing the recorded voice command by using a second voice recognition method to obtain a second voice recognition result; and comparing the first voice recognition result with the second voice recognition result, outputting the voice recognition result according to the comparison result, and displaying the voice recognition result.
10. The real-time online education method of claim 9 wherein the first voice recognition method and the second voice recognition method each include: acquiring the voice of a user; a voice recognition step of converting the acquired voice into text data as an initial voice recognition result through a language recognition process; and an error correction step of referring to an error correction list recorded with a plurality of original vocabulary-deviation vocabulary associations, and if a deviation vocabulary in one of the original vocabulary-deviation vocabulary associations of the error correction list exists in the initial voice recognition result, performing error correction processing to replace the vocabulary in the initial voice recognition result, which is the same as the deviation vocabulary, with the original vocabulary in the original vocabulary-deviation vocabulary associations, so as to obtain an error-corrected voice recognition result, which is used as the voice recognition result generated by the voice recognition method.
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