CN214068011U

CN214068011U - Classroom all-in-one machine equipment

Info

Publication number: CN214068011U
Application number: CN202023257354.4U
Authority: CN
Inventors: 陆文智; 苏培勇
Original assignee: Anhui Zhuozhi Education Technology Co ltd
Current assignee: Anhui Zhuozhi Education Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-08-27
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a classroom all-in-one machine equipment, including casing and the integrated recorded broadcast unit of fixing in the casing, interactive unit, communication unit, computer unit and voice unit, this equipment collects the recorded broadcast of normality, classroom is interactive, classroom evaluation, network communication, pronunciation are talkbacked in an organic whole, stability is high, be convenient for through embedded computing power, link up classroom teaching, the whole link of equipment management, this classroom all-in-one machine equipment integrated level is high, can realize the recorded broadcast, interdynamic, the evaluation, the network, a computer, the integration of 6 platform independent equipments of pronunciation is integrated, creatively realized using the teacher as the leading, the student is the center, teacher's evaluation is the novel classroom teaching mode of thread, satisfy the demand of school's new teaching reform.

Description

Classroom all-in-one machine equipment

Technical Field

The utility model belongs to the technical field of the network is used, in particular to classroom all-in-one machine equipment.

Background

With the rapid development of electronic technology and wireless communication technology, concepts such as "smart home", "smart classroom" and "smart campus" have come into force. The intelligent classroom (Smart Class) is a typical materialization of a Smart learning environment, is a high-end form of multimedia and network classrooms, is a novel classroom constructed by means of Internet of things technology, cloud computing technology, intelligent technology and the like, comprises a tangible physical space and an intangible digital space, and has the functions of assisting teaching content presentation, facilitating learning resource acquisition, promoting classroom interaction development, realizing context awareness, environment management and the like through various intelligent equipment. In a classroom interaction link, the relation between people and a learning environment is improved through the combination of a physical space and a digital space, the natural interaction between people and the environment is realized in the learning space, and personalized learning and open learning are promoted.

At present, the solutions for the intelligent classroom, especially the classroom interaction link part, have some obvious defects, which are mainly embodied as follows:

firstly, the comprehensive classroom interaction is realized by physical equipment support, the integration of multi-manufacturer equipment such as central control equipment, recording and broadcasting equipment, Internet of things equipment and the like can be involved, and the stability and the compatibility are poor;

secondly, due to the fact that a large amount of equipment is integrated, a large number of cables are arranged, reliability is poor, and huge pressure is brought to maintenance and management of equipment, lines and the like;

third, the devices are numerous, require decentralized management, and lack effective management tools.

Disclosure of Invention

The utility model aims at providing a classroom all-in-one machine equipment, integrated recorded broadcast, classroom are interactive, network communication, computer unit, pronunciation talkback the technique, are favorable to improving stability and compatibility.

In order to achieve the above purpose, the utility model discloses technical scheme as follows:

the classroom all-in-one machine equipment comprises a shell, wherein a recording and broadcasting unit, an interaction unit, a communication unit, a computer unit and a voice unit are fixed in the shell, wherein

The recording and broadcasting unit comprises a first processor, and the first processor is connected with a video stream input circuit, a video stream output circuit, a first audio input circuit and a first memory;

the interaction unit comprises a second processor, and the second processor is connected with a second audio input circuit and a second memory;

the communication unit comprises a routing chip and a switching chip, wherein the routing chip is provided with a CONSOLE interface, an extranet interface and a gigabit POE intranet interface, the routing chip is respectively connected with the first processor and the second processor through the switching chip, and the switching chip is also connected with the gigabit intranet interface;

the computer unit comprises a processor, an internal memory and an external memory, the internal memory and the external memory are connected with the processor through a transmission bus, and a gigabit intranet interface connected with the routing chip is arranged on the computer unit;

the voice unit comprises a voice board, and the voice board is connected with the kilomega intranet interface of the exchange chip.

Preferably, the video stream input circuit includes an HDMI input interface and a video bridge chip, and the HDMI input interface is connected to the video input channel of the first processor through the video bridge chip;

the video stream output circuit includes an HDMI output interface connected to a video output channel of the first processor.

In any of the above aspects, it is preferred that the first audio input circuit comprises a first MIC input interface and a first audio codec, the first MIC input interface being connected to an audio input channel of the first processor through the first audio codec.

In any of the above aspects, it is preferable that the second audio input circuit comprises a second MIC input interface and a second audio codec, the second MIC input interface being connected to the audio input channel of the second processor through the second audio codec.

In any of the above schemes, preferably, the first processor and the second processor are RK3399 processing chips.

In any of the above schemes, preferably, the processor of the computer unit is an I5-6360U processor, the external memory is an SSD memory, and the computer unit is further provided with a USB interface, an HDMI interface, and a VGA interface.

In any of the above schemes, preferably, the first memory and the second memory each include an internal memory and an EMMC memory, and the first processor is connected to a hard disk through an expansion card.

In any one of the above embodiments, it is preferable that USB interfaces are connected to the first processor and the second processor, respectively.

In any of the above schemes, preferably, one surface of the housing is an interface board, and each interface of the classroom integrated machine device is fixed on the interface board.

In any of the above schemes, preferably, the classroom all-in-one machine further includes a display unit, where the display unit includes a plurality of status indicator lamps, is electrically connected to the interface board, and is configured to display the operating status of each functional interface

The utility model provides a classroom all-in-one machine equipment has following beneficial effect:

firstly, the utility model can realize the integration of at least five devices of recording and broadcasting, interaction, network, computer and voice intercommunication in the traditional technology, has high stability, and link each link of classroom interaction, and prevents the problem of incompatibility of the devices;

secondly, due to the high integration level of the equipment, compared with the traditional technology which needs to be managed respectively, the utility model only needs to be managed individually, and the computer unit module is arranged in the equipment, thereby supporting the remote management and control of the classroom desktop at the background, uniformly deploying the mirror images, and greatly improving the management efficiency;

thirdly, based on the high integration of equipment, the investment and the deployment of cables can be reduced, the deployment difficulty and the deployment cost are reduced, the management effect is improved, and the reliability is higher.

Drawings

Fig. 1 is a logic block diagram of a preferred embodiment of the classroom integrated machine apparatus of the present invention;

fig. 2 is a schematic external structural view of the embodiment shown in fig. 1.

The reference numbers in the figures illustrate:

101-recording and broadcasting unit wiring area; 102-interactive unit wiring area; 103-computer unit wiring area.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientation or positional relationship is based on that shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1:

the utility model discloses a classroom all-in-one equipment adopts the integrative structure of rack-type, provides powerful hardware basis for recorded broadcast unit, interactive unit and communication unit.

A classroom all-in-one machine device is shown in figures 1 and 2 and comprises a shell, wherein an electronic device integrally fixed in the shell comprises a recording and broadcasting unit, an interaction unit, a communication unit, a computer unit and a voice unit, wherein the recording and broadcasting unit comprises a first processor, and the first processor is connected with a video stream input circuit, a video stream output circuit, a first audio input circuit and a first memory; the interaction unit comprises a second processor, and the second processor is connected with a second audio input circuit and a second memory; the communication unit includes routing chip and exchange chip, be provided with CONSOLE interface, extranet interface and giga POE intranet interface on the routing chip, the routing chip passes through the exchange chip is connected respectively first treater with the second treater, the exchange chip still is connected with giga intranet interface, the computer unit includes treater, internal memory and external memory, internal memory the external memory pass through transmission bus with the treater is connected, be provided with the connection on the computer unit the giga intranet interface of routing chip, the pronunciation unit includes the pronunciation board, the pronunciation board with the giga intranet interface of exchange chip is connected.

The utility model discloses a classroom all-in-one equipment complete machine divide into recorded broadcast unit, interactive unit and communication unit triplex and constitutes, and wherein recorded broadcast unit, interactive unit can handle the chip through two RK3399 and realize as the core of this classroom all-in-one equipment teaching interactive function. Specifically, as shown in fig. 1, both the first processing chip (i.e., CPU1) and the second processing chip (i.e., CPU2) employ an RK3399 processing chip, which is a low-power consumption and high-performance application processor chip, and has a plurality of high-performance hardware processing engines built therein, and is capable of supporting video decoding in multiple formats, such as: 4K × 2K (resolution), 60fps (second transport frame number) h.264/h.265/VP9, 1080P, 30fps h.264/MVC/VP8, and high-quality JPEG codec.

The RK3399 processing chip has the characteristics of double MIPI CSI-2 serial ports, an embedded RGMII interface, three channels I2S, double-channel HDMI and the like, supports double-channel DDR3 and supports EMMC 5.1, and therefore embedded memories EMMC 5.1 and DDR3 are connected to the first processor and the second processor and serve as storage units, namely the first memory and the second memory, and data storage and data operation of the connected processors are respectively carried out.

In order to enlarge the storage capacity, the first storage also comprises a hard disk, the hard disk is preferably an HDD (mechanical hard disk), the unit cost of the HDD is low, and the HDD is suitable for large-capacity storage; the PCIE port of the first processor is connected with the HDD through an expansion card ASM 1061R; the expansion card ASM1061R comes out from 2 SATA ports extended by one PCIE, and the transmission rate is higher than that of the native SATA 2.

The routing chip in the communication unit is preferably MT7621, which comprises a high-performance 880mhz MIPS1004kc cpu core and a high-speed USB 3.0/pci/sdxc interface, supports five-port gigabit MDI transceiving, and comprises a plurality of connection options such as RGMII, PCIe, USB, SD-XC and the like. The routing chip is connected with a CONSOLE interface, a WAN external network interface and 4 LAN + POE gigabit POE internal network interfaces.

The communication unit is provided with 1 exchange chip 88E6176, and the transceiving ports of the exchange chip are respectively connected with the first processor, the routing chip and the LAN gigabit intranet interface, so that transceiving exchange among a plurality of devices is realized; the second treater realizes receiving and dispatching through the exchange chip of end position connection LAN giga intranet interface, and computer unit treater connection exchange chip connects LAN giga intranet interface and realizes receiving and dispatching, and pronunciation board connection exchange chip connects LAN giga intranet interface and realizes receiving and dispatching, reaches exchange forwarding performance 800Mbps, route forwarding performance 400 Mbps.

When the classroom all-in-one machine equipment is used, the recording and broadcasting unit, the video acquisition equipment and the audio acquisition equipment in a classroom can record a teaching process, and the computer unit can transmit files such as videos, images and audios to the recording and broadcasting unit through the communication unit and broadcast the files.

The audio input device on the interaction unit acquires audio information of students or teachers, transmits the audio information to the computer unit through the communication unit, extracts key words by using a DTW algorithm, retrieves related contents on the Internet according to the key words, and plays the retrieved contents through the recording and playing unit or the computer unit, so that the combination of a physical space and a digital space is realized, the relationship between people and a learning environment is improved, and personalized learning and open learning are promoted.

By applying the classroom all-in-one machine equipment, automatic roll calling and classroom effect evaluation can be realized. It can be understood that the implementation of automatic roll call and classroom effect evaluation is realized by a program installed on the classroom integrated machine device or the background server. Specifically, head portrait information of students is obtained in advance and stored in a memory corresponding to a program after learning, a recording and playing unit of the classroom all-in-one machine device obtains videos including all the students in real time, for the obtained videos including all the students, a multitask cascade neural network model is used for detecting faces in all frames of the videos, so that face information of all the students is obtained, a set X1 of face data of the students is obtained, and a facenet model is used for processing the X1 to obtain a mapping set X2 of a compact Euclidean space of the face data of the students. In the emotion recognition stage, a CNN model (ResNet-50) is finely adjusted, and FER2013 data sets are adopted to recognize expression data of students in the set X2.

In order to facilitate the teacher to read the data, the program of the classroom evaluation method can realize a web-based system based on the vue.js front-end frame and the flash back-end frame, so that the acquired emotion changes of the students are stored in a memory in a static mode or a dynamic change curve, and the teacher can conveniently see static and dynamic data of the emotion of the students.

It should be noted that there are various algorithms for face extraction, and therefore, a multitask cascade neural network model is selected to adapt to the interference of adverse factors such as varied face dimensions, redundant quantity, makeup, bad environmental illumination conditions, various postures such as shielding of heads, masks with hats, and the like on precision, so as to improve the extraction precision.

In this embodiment, the video stream input circuit includes an HDMI input interface and a video bridge chip, and the HDMI input interface is connected to the video input channel of the first processor through the video bridge chip; the video stream output circuit includes an HDMI output interface connected to a video output channel of the first processor.

As shown IN fig. 2, the video stream input circuit includes an HDMI input interface (i.e., HDMI IN) for connecting to a computer and inputting a video stream of a computer screen, and a video bridge chip TC 358749; the video bridge chip TC358749 can convert an input video stream into MIPI CSI signals and input the MIPI CSI signals into the MIPI CSI-2 port of the first processor so as to be processed by the first processor; the video stream output circuit comprises an HDMI output interface (namely HDMI OUT), and the first processor RK3399 processes a chip HDMI output channel (namely a port) to be connected with the HDMI output interface (namely the HDMI OUT) and outputs a computer picture or a recording and broadcasting program guide picture.

IN this embodiment, the first processor is further connected with a first audio input circuit, the first audio input circuit includes a first MIC input interface (i.e. MIC IN) and a first audio codec, and the first MIC input interface is connected to the audio input channel of the first processor through the first audio codec ALC 5651; the first MIC input interface is used for connecting pickup equipment and supporting the recording and playing unit to record. The first audio codec ALC5651 is a high-performance, low-power consumption, dual I2S interface audio codec, and has good filtering and noise reduction capability for audio data.

In this embodiment, the first processor and the second processor are respectively connected with a USB interface. The first processor is connected with a USB interface and can provide an external storage function for the recording and broadcasting unit; the second processor is connected with a USB interface and can provide an external storage function for the interaction unit.

The second processor (i.e., the CPU2) is used as an interactive unit main processor, and is connected with a second audio input circuit IN addition to the second memory, where the second audio input circuit includes a second MIC input interface (i.e., MIC IN) and a second audio codec, and IN this embodiment, the second MIC input interface is connected to an audio input channel of the second processor through the second audio codec ALC 5651; and the second MIC input interface is used for connecting pickup equipment and supporting the interaction unit to record.

The processor of the computer unit is an I5-6360U processor, the external memory is an SSD memory, and the computer unit is also provided with a USB interface, an HDMI interface and a VGA interface. It should be noted that the interfaces described in this embodiment are all connectors.

In this embodiment, electronic devices in the classroom integrated machine, such as the first processor (RK3399), the second processor (RK3399), the routing chip (MTK7621), the switching chip (MARVELL-88E6176), and the computer chip (Intel I5), are all integrated and fixed in the housing, one surface of the housing is an interface board (i.e., a chassis back board), and each interface of the device is fixed on the interface board, and is connected to a network cable or a sound pickup device, and the like. As shown in fig. 2, the interface board includes a recording and broadcasting unit connection area 101, an interactive unit connection area 102, and a computer unit connection area 103. Can be provided with two MIC IN connectors (be the interface, the same down), an HDMI IN connector, an HDMI OUT connector output recorded broadcast director picture, two USB interfaces, a CONSOLE interface, 6 giga interfaces, include 1 WAN interface that is used for connecting the extranet IN the giga interface, 1 giga intranet interface and 4 giga POE intranet interface, 1 on-off control terminal, 2 USB3.0 interfaces, 1 HDMI OUT connector output computer unit picture, 1 VGA connector, 2 USB2.0 interfaces, 1 3.5mm microphone jack, 1 3.5mm earphone jack, 1 shift knob.

The classroom all-in-one machine comprises a reset button used for resetting the machine; the equipment also comprises a power supply module for supplying power to the whole machine, and a charging terminal of the power supply module is arranged on the side surface of the shell or an interface board (not marked in the figure) so as to supply power to a power adapter of the power supply module for charging. The reset button and the power module are well-known in the art and will not be described herein.

Preferably, the classroom all-in-one machine equipment further comprises a display unit, wherein the display unit comprises a plurality of status indicator lamps and is electrically connected to the interface board to display the working status of each functional interface, for example, NET represents a communication unit status lamp and is used for displaying the working status of the communication unit; INT represents an interactive unit state lamp used for displaying the working state of the interactive unit; the REC represents a recording and broadcasting unit state lamp and is used for displaying the working state of the recording and broadcasting unit; PWR denotes a power status lamp.

The utility model discloses a classroom all-in-one machine equipment to integrated recorded broadcast, classroom are interactive, classroom evaluation, network communication, computer unit, pronunciation are talkbacked the technique and are regarded as the hardware basis, provide embedded computing power for support basic management business and light weight product business, provide operation service, data communication and network management to each software system that the realization carried on it, found whole system software platform operation framework. Based on the hardware structure of the utility model, the integrated teaching interactor function can be used for realizing classroom interaction, the integrated recording and broadcasting host can be used for realizing functions of picture acquisition, audio and video synthesis and the like in a classroom, and the integrated exchange routing all-in-one machine can be used for realizing the function of network communication of equipment in the classroom to the outside through the communication unit; the computer unit terminal that has integrateed can be used to the teacher and gives lessons the use, the pronunciation conversation function has been integrated, be used for pronunciation to report obstacles, the function is as an organic whole, can be used to link up each link of classroom interaction, the problem of equipment incompatibility has been solved, and whole comprehensive wiring has been simplified, the interactive ware of teaching, the recorded broadcast host computer, exchange route all-in-one, the teaching computer, pronunciation are talkbacked and need not the reuse net twine and carry out the interconnection, many traditional equipment need be through many cable difference connecting network and power, at least, need exceed 8 cables, and the utility model discloses only about 2 cables can be disposed, have improved deployment and management efficiency to there is higher reliability. The utility model discloses equipment cost is lower, the performance is higher, is suitable for the popularization.

In addition, in the description of the embodiments of the present invention, unless explicitly specified or limited otherwise, the term "connect" refers to a circuit connection, i.e., an electrical connection, between two devices through an optionally limited circuit trace according to the definition of pin or port, i.e., a conventional wiring circuit in the art, unless the present invention provides another connection circuit embodiment. The connection between the electronic devices is an electrical connection but does not exclude a certain degree of mechanical connection, as will be appreciated by the skilled person.

The above-mentioned embodiments are only specific embodiments of the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is within the technical scope of the present invention, and according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered in the protection scope of the present invention.

Claims

1. The utility model provides a classroom all-in-one machine equipment, includes the casing, its characterized in that: the casing is internally fixed with a recording and broadcasting unit, an interaction unit, a communication unit, a computer unit and a voice unit, wherein

the communication unit comprises a routing chip and a switching chip, wherein the routing chip is connected with a CONSOLE interface, an extranet interface and a gigabit POE intranet interface, the routing chip is respectively connected with the first processor and the second processor through the switching chip, and the switching chip is also connected with the gigabit intranet interface;

2. The classroom kiosk apparatus of claim 1, wherein: the video stream input circuit comprises an HDMI input interface and a video bridging chip, and the HDMI input interface is connected to a video input channel of the first processor through the video bridging chip;

3. The classroom kiosk apparatus of claim 1, wherein: the first audio input circuit comprises a first MIC input interface and a first audio codec, and the first MIC input interface is connected to an audio input channel of the first processor through the first audio codec.

4. The classroom kiosk apparatus of claim 1, wherein: the second audio input circuit comprises a second MIC input interface and a second audio codec, and the second MIC input interface is connected to an audio input channel of the second processor through the second audio codec.

5. The classroom kiosk apparatus of claim 1, wherein: the first processor and the second processor are RK3399 processing chips.

6. The classroom kiosk apparatus of claim 1, wherein: the processor of the computer unit is an I5-6360U processor, the external memory is an SSD memory, and the computer unit is also provided with a USB interface, an HDMI interface and a VGA interface.

7. The classroom kiosk apparatus of claim 1, wherein: the first memory and the second memory comprise internal memories and EMMC memories, and the first processor is connected with a hard disk through an expansion card.

8. The classroom kiosk apparatus of claim 1, wherein: and the first processor and the second processor are respectively connected with a USB interface.

9. The classroom kiosk apparatus of claim 1, wherein: one surface of the shell is provided with an interface board, and all interfaces of the classroom all-in-one machine equipment are fixed on the interface board.

10. The classroom kiosk apparatus of claim 9, wherein: the classroom all-in-one machine equipment also comprises a display unit, wherein the display unit comprises a plurality of status indicator lamps, is electrically connected to the interface board and is used for displaying the working status of each functional interface.