CN202677351U - Electronic whiteboard based on embedded system - Google Patents
Electronic whiteboard based on embedded system Download PDFInfo
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- CN202677351U CN202677351U CN 201220329964 CN201220329964U CN202677351U CN 202677351 U CN202677351 U CN 202677351U CN 201220329964 CN201220329964 CN 201220329964 CN 201220329964 U CN201220329964 U CN 201220329964U CN 202677351 U CN202677351 U CN 202677351U
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- interface
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- hdmi
- electrically connected
- electronic whiteboard
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Abstract
The utility model discloses an electronic whiteboard based on an embedded system. The electronic whiteboard based on the embedded system comprises a display unit with a low voltage differential signaling (LVDS) interface, a speaker unit, a touch screen and a drive unit which is in electric connection with the display unit, the speaker unit and the touch screen; the drive unit comprises a liquid crystal display television decoding chip and a processor which runs an Android system; the liquid crystal display television decoding chip and the processor communicate through respective universal asynchronous receiver transmitter (UART) interfaces; the liquid crystal display television decoding chip is also provided with an audio signal output end, a plurality of signal receiving interfaces and an LVDS output end; the LVDS interface of the display unit is in electric connection with the LVDS output end; the speaker unit is in electric connection with the audio signal output end; the touch screen is an optical touch screen; and the optical touch screen comprises a complementary metal oxide semiconductor (CMOS) camera, an infrared transmitting tube, a drive circuit and a signal processing circuit. The electronic whiteboard based on the embedded system has the advantages that the system is stable and the functions can be extended; and the electronic whiteboard can be operated simply and conveniently.
Description
Technical field
The utility model relates to a kind of display device, especially relates to the electronic whiteboard based on embedded system of a kind of multifunction formula, optical touch.
Background technology
Present electronic whiteboard product on the market all is based on a kind of PC system all-in-one machine, this kind all-in-one is to comprise two separate PC and TV system in fact, there are not mutual and communication, and the inconvenience of PC system operational applications, software installs the defective complicated, that system is unstable etc., causes ordinary consumer well to use.In addition, more than two kinds of systems all can only use keyboard and mouse or telepilot to control, complex operation is unfavorable for data management.
The utility model content
In view of this, be necessary to provide a kind of electronic whiteboard based on embedded system, its existing electronic whiteboard product function system operation inconvenience of determining, system is unstable, can't expand, the problem of complex operation.
The utility model is to realize like this, a kind of electronic whiteboard based on embedded system, it comprises the display unit with LVDS interface, loudspeaker unit, touch-screen and with described display unit, described loudspeaker unit, the driver element that described touch-screen all is electrically connected, described driver element comprises the processor of LCD TV decoding chip and operation Android system, described LCD TV decoding chip is connected with described processor adopting UART interface communication separately, described LCD TV decoding chip also is provided with audio signal output end, some signal receiving interfaces and Low Voltage Differential Signal output terminal, described some signal receiving interfaces are selected from the Tuner interface that receives the TV signal, receive the HDMI interface of HDMI signal, at least a interface in the D-SUB interface of the AV interface of receiving video signals and reception VGA signal, the LVDS interface of described display unit is electrically connected with described Low Voltage Differential Signal output terminal, described loudspeaker unit is electrically connected with described audio signal output end, described touch-screen is optical touch screen, described optical touch screen comprises the CMOS camera, infrared transmitting tube, driving circuit and signal processing circuit, described driving circuit is electrically connected with described infrared transmitting tube described infrared transmitting tube is sent the scan round signal, described signal processing circuit is electrically connected the signal that described CMOS camera is received with described CMOS camera carries out analyzing and processing and determines the position signalling corresponding with touch action, and described signal processing circuit also is electrically connected on described processor.
Further improvement as such scheme, when described processor comprises the HDMI signal output part of output HDMI signal, described LCD TV decoding chip is selected the HDMI interface, and described HDMI interface comprises the 2nd HDMI interface that is electrically connected the HDMI interface that receives outside HDMI signal with external devices and is electrically connected the HDMI signal that the described processor of reception exports with described HDMI signal output part.
As the further improvement of such scheme, described electronic whiteboard also comprises the power supply unit that all is electrically connected with described processor and described display unit, and power supply unit provides dc supply for described processor and described display unit.
The advantage based on the electronic whiteboard of embedded system that the utility model provides is: use high performance Arm chip operation embedded OS, guarantee the stability of product systems performance and operation, and can make electronic whiteboard carry out Function Extension by some signal receiving interfaces by the arranging of some signal receiving interfaces of LCD TV decoding chip, be convenient to carrying out smoothly of electronic whiteboard function expansion design, in addition, adopt its touch of optical touch screen effective, easy to operate.
Description of drawings
The structural representation based on the electronic whiteboard of embedded system that Fig. 1 provides for the utility model preferred embodiments.
Main symbol description: driver element 1, display unit 2, power supply unit 3, touch-screen 4, loudspeaker unit 5, processor 11, LCD TV decoding chip 12, HDMI signal output part 110, UART interface 112, usb 1 17, Tuner interface 121, audio signal output end 122, HDMI interface 123, Low Voltage Differential Signal output terminal 124, AV interface 125, the one HDMI interface 126, D-SUB interface 127, the 2nd HDMI interface 128, LVDS interface 21, CMOS camera 41, infrared transmitting tube 43, driving circuit 44, signal processing circuit 45.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See also Fig. 1, the structural representation based on the electronic whiteboard of embedded system that it provides for the utility model preferred embodiments.Electronic whiteboard comprises driver element 1, display unit 2, touch-screen 4, loudspeaker unit 5 and the power supply unit 3 that dc supply is provided for driver element 1 and display unit 2.
LCD TV decoding chip 12 also is provided with the AV interface 125 of the Tuner interface 121 that receives the TV signal, the HDMI interface 123 that receives the HDMI signal, receiving video signals and receives the D-SUB interface 127 of VGA signal.Tuner interface 121, HDMI interface 123, AV interface 125 and D-SUB interface 127 are the signal receiving interface of LCD TV decoding chip 12, in other embodiments, the signal receiving interface can be selected from least a interface in Tuner interface 121, HDMI interface 123, AV interface 125 and the D-SUB interface 127.
Wherein, HDMI interface 123 comprises being electrically connected with external devices and is used for receiving a HDMI interface 126 of outside HDMI signal and is electrically connected the 2nd HDMI interface 128 that is used for the HDMI signal that receiving processor 11 exports with HDMI signal output part 110.Therefore, LCD TV decoding chip 12 can receive outside HDMI signal by a HDMI interface 126, also can be by the HDMI signal of the 2nd HDMI interface 128 receiving processors 11 outputs.
LCD TV decoding chip 12 also is provided with audio signal output end 122 and Low Voltage Differential Signal output terminal 124, the LVDS interface 21 of display unit 2 is electrically connected with Low Voltage Differential Signal output terminal 124, loudspeaker unit 5 is electrically connected with audio signal output end 122, thereby is convenient to the operation of driver element 1 control display unit 2 and loudspeaker unit 5.
Touch-screen 4 is electrically connected with usb 1 17, in the present embodiment, touch-screen 4 adopts optical touch screen, optical touch screen comprises CMOS camera 41, infrared transmitting tube 43, driving circuit 44 and signal processing circuit 45, wherein, driving circuit 44 is electrically connected with infrared transmitting tube 43 infrared transmitting tube 43 is sent the scan round signal, signal processing circuit 45 is electrically connected the signal that CMOS camera 41 is received with CMOS camera 41 carries out analyzing and processing and determines the position signalling corresponding with touch action, and signal processing circuit 45 also is electrically connected on the usb 1 17 of processor 11.
In sum, the electronic whiteboard based on embedded system that the utility model provides, arranging of some signal receiving interfaces of LCD TV decoding chip 12 can make electronic whiteboard carry out Function Extension by some signal receiving interfaces, the design of the processor 11 of its operation Android system, be convenient to carrying out smoothly of electronic whiteboard function expansion design, adopt in addition optical touch screen 4 its touches effective, easy to operate.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. electronic whiteboard based on embedded system, it comprises the display unit with LVDS interface, loudspeaker unit, touch-screen and with described display unit, described loudspeaker unit, the driver element that described touch-screen all is electrically connected, it is characterized in that, described driver element comprises the processor of LCD TV decoding chip and operation Android system, described LCD TV decoding chip is connected with described processor adopting UART interface communication separately, described LCD TV decoding chip also is provided with audio signal output end, some signal receiving interfaces and Low Voltage Differential Signal output terminal, described some signal receiving interfaces are selected from the Tuner interface that receives the TV signal, receive the HDMI interface of HDMI signal, at least a interface in the D-SUB interface of the AV interface of receiving video signals and reception VGA signal, the LVDS interface of described display unit is electrically connected with described Low Voltage Differential Signal output terminal, described loudspeaker unit is electrically connected with described audio signal output end, described touch-screen is optical touch screen, described optical touch screen comprises the CMOS camera, infrared transmitting tube, driving circuit and signal processing circuit, described driving circuit is electrically connected with described infrared transmitting tube described infrared transmitting tube is sent the scan round signal, described signal processing circuit is electrically connected the signal that described CMOS camera is received with described CMOS camera carries out analyzing and processing and determines the position signalling corresponding with touch action, and described signal processing circuit also is electrically connected on described processor.
2. a kind of electronic whiteboard based on embedded system as claimed in claim 1, it is characterized in that, when described processor comprises the HDMI signal output part of output HDMI signal, described LCD TV decoding chip is selected the HDMI interface, and described HDMI interface comprises the 2nd HDMI interface that is electrically connected the HDMI interface that receives outside HDMI signal with external devices and is electrically connected the HDMI signal that the described processor of reception exports with described HDMI signal output part.
3. a kind of electronic whiteboard based on embedded system as claimed in claim 1 or 2, it is characterized in that, described electronic whiteboard also comprises the power supply unit that all is electrically connected with described processor and described display unit, and power supply unit provides dc supply for described processor and described display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220329964 CN202677351U (en) | 2012-07-09 | 2012-07-09 | Electronic whiteboard based on embedded system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220329964 CN202677351U (en) | 2012-07-09 | 2012-07-09 | Electronic whiteboard based on embedded system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202677351U true CN202677351U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220329964 Expired - Fee Related CN202677351U (en) | 2012-07-09 | 2012-07-09 | Electronic whiteboard based on embedded system |
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| Country | Link |
|---|---|
| CN (1) | CN202677351U (en) |
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2012
- 2012-07-09 CN CN 201220329964 patent/CN202677351U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ANHUI TELIT TECHNOLOGY CO., LTD. Free format text: FORMER NAME: ANHUI TELIT ELECTRON CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: High tech Zone 230031 Hefei Road, Anhui province Tianzhi Tongchuang Science Park No. 5, building 1, room 1101 Patentee after: ANHUI TELIT TECHNOLOGY CO., LTD. Address before: 230000 B, international business center, 162 Jinzhai Road, Anhui, Hefei, 806 Patentee before: Anhui Telit Electron Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20150709 |
|
| EXPY | Termination of patent right or utility model |