CN202838720U

CN202838720U - Electronic teaching display screen on basis of WLAN (wireless local area network)

Info

Publication number: CN202838720U
Application number: CN 201220549157
Authority: CN
Inventors: 华东
Original assignee: YUCAI HOLDING GROUP CO Ltd
Current assignee: YUCAI HOLDING GROUP CO Ltd
Priority date: 2012-10-24
Filing date: 2012-10-24
Publication date: 2013-03-27
Anticipated expiration: 2022-10-24

Abstract

The utility model discloses an electronic teaching display screen on the basis of a WLAN (wireless local area network). The electronic teaching display screen comprises an electronic display screen, an ARM [advanced RISC (reduced instruction set computer) machine] processor, a wireless network card and a crystal oscillator module. The wireless network card is based on the WLAN, wirelessly receives video signals of a mobile terminal and inputs the video signals into the ARM processor, a video driving module is connected with the ARM processor, the crystal oscillator module is connected onto an ARM processing chip and is used for providing clock signals, an HDMI (high-definition multimedia interface) control module is connected onto the ARM processor, and an HDMI is arranged on the HDMI control module and is used for being connected with a tablet computer and the like. The electronic teaching display screen has the advantages of novel design, convenience in teaching interaction, popularization and application and low cost.

Description

Electronic type teaching display screen based on the WLAN net

Technical field

The utility model relates to a kind of electronic teaching instrument, specifically refers to a kind of electronic type teaching display screen based on the WLAN net.

Background technology

Along with the development of electronic technology and deeply, traditional blackboard has been projected instrument and multimedia computer substitutes.Although be enhanced in display effect,, lack the on-the-spot hand-written deduction of teaching board, on teaching efficiency, can't substitute traditional blackboard fully.

By retrieval, Chinese patent application is number for 200820075663.X discloses a kind of electronic display screen for teaching, and its structure employing touch-screen designs, can directly write thereon, still, in teaching, for so that the student can obtain better visual effect, its necessity needs large-sized touch-screen, yet, at electronic applications, large-sized touch-screen cost is very expensive, therefore, the electronic type of this quasi-tradition teaching display screen price is high, is difficult to apply.

In addition, along with the development of wireless lan (wlan) technology, at present, a lot of students is used for the portable terminal of WIFI function (such as panel computer and smart mobile phone), because be necessary to research and develop a kind of electronic type teaching display screen based on the WLAN net, to make things convenient for interactive teaching and learning.

Summary of the invention

The purpose of this utility model is the shortcoming and defect that exists in order to overcome prior art, and provides a kind of structural design novel, has hand-written demo function, and the electronic type teaching display screen based on the WLAN net easy to use.

For achieving the above object, the technical solution of the utility model is to comprise following assembly:

Electronic display and arm processor;

Wireless network card, based on wlan network, the vision signal of wireless mode mobile terminal receive, and vision signal is input to arm processor;

Described arm processor is connected with video driving module, and described electronic display is connected with video driving module, and the vision signal that receives is presented on the electronic display by video driving module behind arm processor,

The crystal oscillator module is connected on the ARM process chip, is used for providing clock signal;

Be connected with the HDMI control module on the described arm processor, be provided with the HDMI interface on this HDMI control module, this HDMI interface is used for connecting panel computer;

Be connected with the SDRAM storer on the described arm processor, be used for the temporary and buffer memory of data;

Be connected with the FLASH storer on the described arm processor, the steering order that is used for arm processor stores.

Further arranging is that described electronic display is LED display.

The utility model is by arranging wireless network card, based on the WLAN net, with the video data of WIFI mode mobile terminal receive, therefore it is presented on the display screen,, the teacher is at school the time, only need to carry panel computer and the mobile phone of handwriting functions, just hand-written process can be synchronized on the electronic display, therefore, the student can understand the hand-written deduction of teaching board intuitively, improves the quality of teaching.Certainly by the WLAN net, can also make things convenient for classroom and student interactive.

In addition, the utility model sea is provided with the HDMI interface, just can carry out the Voice ﹠ Video data transfer with very general panel computer (such as IPAD series etc.) on the existing market by data conversion line, can carry out equally the hand-written deduction of teaching board, improve the quality of teaching.

The utility model because hand-written process is no longer carried out on the electronic display, therefore need not the very high touch-screen of purchase cost, and can directly adopt LCD or LED display to get final product, and has greatly reduced cost, helps the popularization of electronic type teaching display.

Below in conjunction with specification drawings and specific embodiments the utility model is done further introduction.

Description of drawings

Fig. 1 the utility model embodiment theory diagram.

Embodiment

Below by embodiment the utility model is carried out concrete description; only be used for the utility model is further specified; can not be interpreted as the restriction to the utility model protection domain, the technician in this field can make some nonessential improvement and adjustment to the utility model according to the content of above-mentioned utility model.

Embodiment of the present utility model as shown in Figure 1 comprises following assembly:

Electronic display and arm processor; This electronic display of present embodiment is preferably LED display, lower, the technology maturation of cost, and display effect is good; Present embodiment adopts arm processor to carry out integrated setting, arm processor is a kind of microprocessor, have that volume is little, low-power consumption, low cost and high performance advantage, support simultaneously the Thumb(16 position)/the ARM(32 position) two instruction set, can well compatible 8/16 devices.

Wireless network card, based on wlan network, the vision signal of wireless mode mobile terminal receive, and vision signal is input to arm processor; This wireless network card of present embodiment preferably adopts the wireless network card based on the IEEE802.11n agreement, improves data rate.

The crystal oscillator module is connected on the ARM process chip, for data transmission provides clock signal;

Claims

1. electronic type teaching display screen based on WLAN net is characterized in that comprising following assembly:

Electronic display and arm processor;

Described arm processor is connected with video driving module, and described electronic display is connected with video driving module, and the vision signal that receives is presented on the electronic display by video driving module behind arm processor;

2. a kind of electronic type teaching display screen based on WLAN net according to claim 1, it is characterized in that: described electronic display is LED display.