CN211403666U

CN211403666U - Highly integrated classroom teaching interactive device

Info

Publication number: CN211403666U
Application number: CN201922326763.6U
Authority: CN
Inventors: 陆文智
Original assignee: Anhui Zhuozhi Education Technology Co ltd
Current assignee: Anhui Zhuozhi Education Technology Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-09-01
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a highly integrated classroom teaching interaction device, which comprises a recording and broadcasting unit, an interaction unit, a communication unit and a storage unit, wherein the recording and broadcasting unit comprises a first processor which is connected with a video stream input circuit, a video stream output circuit and a first audio input circuit; the first processor is also connected with the storage unit; the interaction unit comprises a second processor, the second processor is connected with a second audio input circuit, and the second processor is also connected with the storage unit; the communication unit comprises a routing chip and a switching chip; the exchange chip is also connected with a plurality of kilomega intranet interfaces, can realize the integration of at least three devices of recording and broadcasting, interaction and network in the traditional technology, has high stability, is beneficial to realizing the communication of each link of classroom interaction through embedded computing capacity and prevents the problem of incompatibility of the devices; because the equipment integration level is high, compared with the traditional technology which needs to be managed respectively, the utility model only needs to manage one unit, and the management efficiency is greatly improved; and based on the high integration of equipment, the investment and the deployment of cables can be reduced, the deployment difficulty and cost are reduced, the management effect is improved, and the reliability is higher.

Description

Highly integrated classroom teaching interactive device

Technical Field

The utility model belongs to the technical field of the network is used, particularly, for a highly integrated classroom teaching interactive device.

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 a multimedia classroom and a network classroom, is a novel classroom constructed by means of an Internet of things technology, a cloud computing technology, an 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:

1. the comprehensive classroom interaction is realized by the support of physical equipment, the integration of equipment of multiple manufacturers 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;

2. because of the existence of a large amount of equipment integration, a plurality of cables are very numerous, the reliability is poor, and great pressure is brought to the maintenance and management of equipment, lines and the like;

3. the devices are numerous, need to be managed in a scattered mode, and lack effective management tools.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a highly integrated classroom teaching interactive installation does benefit to and improves stability and compatibility.

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

a highly integrated classroom teaching interaction device comprising: recording and broadcasting unit, interactive unit, communication unit and storage 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 and a first audio input circuit; the first processor is also connected with the storage unit;

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

the communication unit comprises a routing chip and an exchange 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 a switching chip; the exchange chip is also connected with a plurality of gigabit intranet interfaces.

Preferably, in the highly integrated classroom teaching interaction device, 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 comprises an HDMI output interface, and the HDMI output interface is connected with a video output channel of the first processor.

Preferably, in the highly integrated classroom teaching interaction device, the first audio input circuit includes a first MIC input interface 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.

Preferably, in the highly integrated classroom teaching interaction device, the second audio input circuit includes a second MIC input interface and a second audio codec, and the second MIC input interface is connected to the audio input channel of the second processor through the second audio codec.

Preferably, in the highly integrated classroom teaching interaction device, the plurality of switch chips are arranged and connected in sequence.

Preferably, in the highly integrated classroom teaching interaction device, the storage unit includes a memory and a memory bank respectively connected to the first processor and the second processor; the system also comprises a hard disk connected with the first processor through an expansion card.

Preferably, in the highly integrated classroom teaching interaction device, the first processor and the second processor are respectively connected with a USB interface.

Preferably, the highly integrated classroom teaching interaction device further comprises a housing, electronic devices of the device are integrally fixed in the housing, one surface of the housing is an interface board, and each interface of the device is fixed on the interface board.

Preferably, the highly integrated classroom teaching interaction device 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.

The utility model provides a highly integrated classroom teaching interactive installation has following beneficial effect:

based on the utility model, the integration of at least three devices of recording and broadcasting, interaction and network in the traditional technology can be realized, the stability is high, the embedded computing capability is favorable for realizing the link of classroom interaction, and the problem of incompatibility of the devices is prevented;

because the equipment integration level is high, compared with the traditional technology which needs to be managed respectively, the utility model only needs to manage one unit, and the management efficiency is greatly improved; and based on the high integration of equipment, the investment and the deployment of cables can be reduced, the deployment difficulty and cost are reduced, the management effect is improved, and the reliability is higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 provides a logic diagram for one embodiment of the present invention;

FIG. 2 is a schematic view of the external structure of the apparatus shown in FIG. 1;

IN the figure, 1-MIC IN connector, 2-HDMI IN connector, 3-HDMI out connector, 4-USB interface, 5-Console interface, 6-kilomega interface, 7-shell, 8-interface board, 9-reset button; 10-indicator light.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

The utility model discloses equipment adopts the integrative structure of rack-type, provides powerful hardware basis for recorded broadcast engine, interactive engine of teaching and network communication engine. In particular, the method comprises the following steps of,

a highly integrated classroom teaching interaction device comprises a recording and broadcasting unit, an interaction unit, a communication unit and a storage unit, wherein

The utility model discloses the complete machine divide into the recorded broadcast engine, the interactive engine of teaching and the three module subassembly of network communication engine constitutes, and wherein the recorded broadcast engine, the interactive engine of teaching are as the core function of the interactive equipment of teaching, can handle the chip realization through two RK 3399. 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) h.264/h.265/VP9 at 60fps (transport frame number per second), h.264/MVC/VP8 at 1080P and 30fps, and high-quality JPEG codec.

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

In order to enlarge the storage capacity, the storage unit also comprises a hard disk, preferably the hard disk is an HDD (hard disk drive), has low unit cost and 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 video stream input circuit comprises an HDMI input interface (namely HDMI IN) and a video bridging chip TC358749, wherein the HDMI input interface is used for connecting a computer and inputting video streams of computer pictures; 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 an HDMI output channel (namely an HDMI output port) of the RK3399 chip is connected with the HDMI output interface (namely HDMI out) to output computer pictures or recording and broadcasting guide pictures.

The HDX621 chip is an Integrated Circuit (IC) interface, realizes HDMI two-IN one-out, and can control which HDMI IN picture input source is selected through a switch; the chip is arranged between the video bridging chip TC358749 and the HDMI input interface for switch control; when the integrated circuit IC interface is implemented specifically, the integrated circuit IC interface is reserved on the mainboard, and subsequent development is facilitated to expand and control.

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, IN this embodiment, the first MIC input interface is connected to an 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 a recording and playing engine to record. 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 the embodiment shown in fig. 1, the first processor is further connected to a USB interface, which can provide an external storage function for the recording and playing engine.

The second processor (i.e., the CPU2) is used as an interactive unit main processor, and IN addition to the above-mentioned connected storage unit, a second audio input circuit is connected, and the second audio input circuit includes a second MIC input interface (i.e., MIC IN) and a second audio codec, 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 interactive engine to record.

And the second processor is connected with a USB interface, and can provide an external storage function for the interactive teaching engine.

In the embodiment shown in fig. 1, the routing chip in the communication unit is preferably MT7621, which includes a high-performance 880mhz MIPS1004kc cpu core and a high-speed USB 3.0/pci/sdxc interface, and supports five-gigabit MDI transceiving, and numerous connection options such as RGMII, PCIe, USB, SD-XC.

The routing chip is connected with a Console interface (not marked in figure 1), a WAN external network interface and 4 LAN + POE gigabit POE internal network interfaces;

the communication unit shown in the figure is provided with 4 exchange chips, and the 4 exchange chips are sequentially interconnected; the transceiving port of the exchange chip 88E6176 at the leading position is respectively connected with the first processor routing chip and the LAN gigabit intranet interface, so that transceiving exchange among a plurality of devices is realized; the second processor is connected with the LAN gigabit intranet interface through the last exchange chip to realize transceiving, and the exchange forwarding performance of 800Mbps and the routing forwarding performance of 400Mbps are achieved.

In addition, the interfaces described in this embodiment are all connectors.

In this embodiment, as shown in fig. 2, the device includes a housing 7, electronic devices (including the first and second processors, the routing chip, the switching chip, the video stream input and output current, and the audio input circuits) in the device are all integrated and fixed in the housing 7, one surface of the housing 7 is an interface board 8 (i.e., a chassis back board), and each interface of the device is fixed on the interface board 8, and is connected to a network cable or a sound pickup device, etc. Shown IN the figure, what fix on the interface board includes two MIC IN connectors 1 (i.e. interface, the same below), an HDMI IN connector 2, an HDMI out connector 3, two USB interfaces 4, a Console interface 5, 24 gigabit interfaces 6, and gigabit interfaces 6 includes 1 WAN interface for connecting the extranet, 1 WAN interface for connecting teaching computer/notebook, 18 gigabit intranet interfaces and 4 gigabit POE intranet interfaces.

The equipment comprises a reset button 9 which is electrically connected on an interface board 8 and used for resetting the equipment; 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 be accessed and charged by a power adapter of the power supply module. The reset button and the power module are well-known in the art and will not be described herein.

Preferably, the classroom teaching interaction device further comprises a display unit, wherein the display unit comprises a plurality of status indicator lamps 10 and is electrically connected to the interface board 8 to display the working status of each functional interface, for example, NET represents a communication engine status lamp (displaying the working status of the communication unit), and INT represents an interactive teaching engine status lamp (displaying the working status of the interaction unit); an REC video stream engine status lamp (displaying the working status of the recording and broadcasting unit); PWR power status light.

The utility model relates to a highly integrated classroom teaching interactive installation as the hardware basis, provides 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 its carried on in order to realize, 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 a network communication engine; triune can be used to link up each link of classroom interaction, prevents the incompatible problem of equipment, and has simplified whole comprehensive wiring, and teaching is interactive, recorded broadcast host computer, exchange route all-in-one need not the reuse net twine and carries out the interconnection, and many traditional equipment need be through many cables difference connecting network and power, need exceed 6 cables at least, the utility model discloses only about 2 cables can be deployed, have improved deployment and managerial efficiency to there is higher reliability. The utility model discloses equipment cost is handed over end, 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 present invention has been described in detail with reference to specific embodiments, and the description of the embodiments is only for the purpose of helping understanding the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a highly integrated classroom teaching interactive installation which characterized in that: the method comprises the following steps: recording and broadcasting unit, interactive unit, communication unit and storage unit, wherein

2. The highly integrated classroom teaching interaction device 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 highly integrated classroom teaching interaction device of claim 2, 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 highly integrated classroom teaching interaction device 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 highly integrated classroom teaching interaction device of claim 1, wherein: the switching chips are arranged in a plurality and are connected in sequence.

6. The highly integrated classroom teaching interaction device of any one of claims 1-5, wherein: the storage unit comprises a memory and a memory bank which are respectively connected with the first processor and the second processor; the system also comprises a hard disk connected with the first processor through an expansion card.

7. The highly integrated classroom teaching interaction device of any one of claims 1-5, wherein: and the first processor and the second processor are respectively connected with a USB interface.

8. The highly integrated classroom teaching interaction device of any one of claims 1-5, wherein: the electronic device of the equipment is integrally fixed in the shell, one surface of the shell is an interface board, and all interfaces of the equipment are fixed on the interface board.

9. The highly integrated classroom teaching interaction device of claim 8, 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.