CN105657314A - Signal transmission system and method for class plate - Google Patents
Signal transmission system and method for class plate Download PDFInfo
- Publication number
- CN105657314A CN105657314A CN201511008817.4A CN201511008817A CN105657314A CN 105657314 A CN105657314 A CN 105657314A CN 201511008817 A CN201511008817 A CN 201511008817A CN 105657314 A CN105657314 A CN 105657314A
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- CN
- China
- Prior art keywords
- transducer
- signal
- class
- board
- management device
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
Abstract
The invention relates to a signal transmission system and method for a class plate. The system comprises a signal management device, a first converter and a second converter; the signal management device sends a HDMI signal to the first converter; the HDMI signal is converted through the first converter, such that a HDBaseT signal is obtained and sent to the second converter; and the HDBaseT signal is converted through the second converter, such that a LVDS signal is obtained and sent to the class plate. Because data is sent to the class plate without a network, the process is not influenced by the network speed; therefore, the class plate cannot work due to the network problem can be avoided; and the reliability is high.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of class's board signal transmission system and method.
Background technology
Class's board communication system is mainly used in classroom, and terminal is liquid crystal blank or electronic whiteboard, for showing notification message in break. Operation that teacher issues, class's notice, activity schedule etc. can be shown by class's board.
Traditional class's board signal transmission form is to send the signal to multiple Android plate by network, then passes through Android plate and signal is forwarded to the digital class board of correspondence carries out information and show. Owing to carrying out signal transmission by network, numeral class board cannot work when a network fails, and traditional class's board signal transmission form exists the shortcoming that reliability is low.
Summary of the invention
Based on this, it is necessary to for the problems referred to above, it is provided that class's board signal transmission system that a kind of reliability is high and method.
A kind of class board signal transmission system, including signal management device, the first transducer and the second transducer, described signal management device connects described first transducer, and described first transducer connects described second transducer, and described second transducer is used for connecting a class board,
Described signal management device is used for sending HDMI signal extremely described first transducer, described first transducer is for changing described HDMI signal, obtain described second transducer discernible HDBaseT signal and send to described second transducer, described second transducer, for described HDBaseT signal is changed, obtains described class board discernible LVDS signal and sends to described class board.
A kind of class board method for transmitting signals, comprises the following steps:
By signal management device transmission HDMI signal to the first transducer;
By described first transducer, described HDMI signal is changed, obtain the second transducer discernible HDBaseT signal and send to described second transducer;
By described second transducer, described HDBaseT signal is changed, obtain class board discernible LVDS signal and send to described class board.
Above-mentioned class board signal transmission system and method, by signal management device transmission HDMI signal to the first transducer. By the first transducer, HDMI signal is changed, obtain the second discernible HDBaseT signal of transducer and send to the second transducer. By the second transducer, HDBaseT signal is changed, obtain the discernible LVDS signal of class board and send to class's board. Owing to without sending data to a class board by network, not affected by network speed, it is to avoid cannot work because of network problem, reliability is high. Receive coherent signal by transducer to change, and netting twine need not be laid, reduce cost.
Accompanying drawing explanation
Fig. 1 is the structure chart of an embodiment middle class in a kindergarten board signal transmission system;
Fig. 2 is the flow chart of an embodiment middle class in a kindergarten board method for transmitting signals;
Fig. 3 is the flow chart of another embodiment middle class in a kindergarten board method for transmitting signals.
Detailed description of the invention
A kind of class board signal transmission system, as shown in Figure 1, including signal management device the 110, first transducer 120 and the second transducer 130, signal management device 110 connects the first transducer 120, first transducer 120 connects the second transducer 130, second transducer 130 is used for connecting class board 200, and class's board 200 can be specifically data class board.
Signal management device 110 is used for sending HDMI (HighDefinitionMultimediaInterface, HDMI) signal is to the first transducer 120, first transducer 120 is for changing HDMI signal, obtain the second discernible HDBaseT signal of transducer 120 and send to the second transducer 120, second transducer 130 is for changing HDBaseT signal, obtain the discernible LVDS of class board 200 (Low-VoltageDifferentialSignaling, low-voltage differential signal) signal and send to class's board 200.
Signal management device 110 specifically can adopt PC, and ((personalcomputer, personal computer) machine, is used for carrying out signal transfer management. Signal management device 110 sends HDMI signal to the first transducer 120, simplifies system line, it is simple to install. First transducer 120 sends after HDMI signal is converted to HDBaseT signal to the second transducer 130, improves transfer rate. HDBaseT signal is converted to LVDS signal and sends to class's board 200 by the second transducer 130, and data transmission rate is high, low in energy consumption and noise inhibiting ability is high.
Carry out signal transmission and conversion by signal management device the 110, first transducer 120 and the second transducer 130, finally give LVDS signal and send to class's board 200, it is not necessary to carry out data transmission by network, it is to avoid cannot work because network goes wrong. Carried out conversion and the transmission of signal by the first transducer 120 and the second transducer 130, receive with the Android board of traditional employing and compared with forward signal, also reduce cost.
Wherein in an embodiment, signal management device 110 sends HDMI signal to before the first transducer 120, being additionally operable to the first transducer 120 and the second transducer 130 are carried out initialization process. First transducer 120 and the second transducer 130 are carried out initialization process by signal management device 110, specifically the first transducer 120 and the second transducer 130 can be carried out software code test, whether normal detect the work of each transducer; If normal, send HDMI signal to the first transducer 120, carry out signal transmission. Before signal transmits, transducer is carried out initialization process, it is to avoid because converter failure cannot be carried out signal transmission, improve transmission reliability.
Wherein in an embodiment, the quantity of class's board 200 is multiple, and the quantity of the second transducer 130 is identical with class board 200 quantity, and each second transducer 130 connects a corresponding class board 200 respectively. Signal management device 110 is additionally operable to sendaisle and selects signal to the first transducer 120, and the HDBaseT signal being converted to is sent to the second corresponding transducer 130 by the first transducer 120 according to channel selecting signal. The particular type of channel selecting signal is not unique, is usb signal in the present embodiment. Select signal to the first transducer 120 by signal management device 110 sendaisle, control the first transducer 120 and carry out channel selecting, the HDBaseT signal being converted to is sent to the second corresponding transducer 130, it is achieved the signal transmission of multiple classes of boards 200.
Above-mentioned class board signal transmission system, sends HDMI signal to the first transducer 200 by signal management device 110. By the first transducer 120, HDMI signal is changed, obtain HDBaseT signal and send to the second transducer 130. By the second transducer 130, HDBaseT signal is changed, obtain LVDS signal and send to class's board 200. Owing to without sending data to class board 200 by network, not affected by network speed, it is to avoid cannot work because of network problem, reliability is high. Receive coherent signal by transducer to change, and netting twine need not be laid, reduce cost.
Present invention also offers a kind of class board method for transmitting signals, realize based on above-mentioned class board signal transmission system. As in figure 2 it is shown, said method comprises the following steps:
Step S130: by signal management device transmission HDMI signal to the first transducer. Signal management device specifically can adopt PC, is used for carrying out signal transfer management. Signal management device sends HDMI signal to the first transducer, simplifies system line, it is simple to install.
Step S140: HDMI signal is changed by the first transducer, is obtained the second discernible HDBaseT signal of transducer and sends to the second transducer. First transducer sends after HDMI signal is converted to HDBaseT signal to the second transducer, improves transfer rate.
Step S150: HDBaseT signal is changed by the second transducer, is obtained the discernible LVDS signal of class board and sends to class's board. HDBaseT signal is converted to LVDS signal and sends to class's board by the second transducer, and data transmission rate is high, low in energy consumption and noise inhibiting ability is high.
Carry out signal transmission and conversion by signal management device, the first transducer and the second transducer, finally give LVDS signal and send to class's board, it is not necessary to carry out data transmission by network, it is to avoid cannot work because network goes wrong. Carried out conversion and the transmission of signal by the first transducer and the second transducer, receive with the Android board of traditional employing and compared with forward signal, also reduce cost.
Wherein in an embodiment, as it is shown on figure 3, before step S130, class's board method for transmitting signals also includes step S120.
Step S110: the first transducer and the second transducer are carried out initialization process by signal management device. First transducer and the second transducer are carried out initialization process, specifically the first transducer and the second transducer can be carried out software code test, whether normal detect the work of each transducer; If normal, carry out step S130, send HDMI signal to the first transducer by signal management device, carry out signal transmission. Before signal transmits, transducer is carried out initialization process, it is to avoid because converter failure cannot be carried out signal transmission, improve transmission reliability.
Wherein in an embodiment, the quantity of class's board is multiple, and the quantity of the second transducer is identical with class board quantity, and each second transducer connects a corresponding class board respectively. Before step S140, class's board method for transmitting signals is further comprising the steps of:
Step S120: by signal management device sendaisle selection signal to the first transducer.
Step S140 is, by the first transducer, HDMI signal is converted to HDBaseT signal, and sends HDBaseT signal to the second corresponding transducer according to channel selecting signal.
Step S120 is concrete after step silo, and step S120 can before step S130, can be after step s 130, it is possible to carry out with step S130 simultaneously.The particular type of channel selecting signal is not unique, is usb signal in the present embodiment. Select signal to the first transducer by signal management device sendaisle, control the first transducer and carry out channel selecting, the HDBaseT signal being converted to is sent to the second corresponding transducer, it is achieved the signal transmission of multiple classes of boards.
Above-mentioned class board method for transmitting signals, by signal management device transmission HDMI signal to the first transducer. By the first transducer, HDMI signal is changed, obtain HDBaseT signal and send to the second transducer. By the second transducer, HDBaseT signal is changed, obtain LVDS signal and send to class's board. Owing to without sending data to a class board by network, not affected by network speed, it is to avoid cannot work because of network problem, reliability is high. Receive coherent signal by transducer to change, and netting twine need not be laid, reduce cost.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics is absent from contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent. It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention. Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (7)
1. class's board signal transmission system, it is characterised in that include signal management device, the first transducer and the second transducer, described signal management device connects described first transducer, described first transducer connects described second transducer, and described second transducer is used for connecting a class board
Described signal management device is used for sending HDMI signal extremely described first transducer, described first transducer is for changing described HDMI signal, obtain described second transducer discernible HDBaseT signal and send to described second transducer, described second transducer, for described HDBaseT signal is changed, obtains described class board discernible LVDS signal and sends to described class board.
2. according to claim 1 class of board signal transmission system, it is characterised in that described signal management device is additionally operable to described first transducer and described second transducer are carried out initialization process before sending HDMI signal extremely described first transducer.
3. according to claim 1 class of board signal transmission system, it is characterised in that the quantity of described class board is multiple, the quantity of described second transducer is identical with described class board quantity, and each described second transducer connects a corresponding class board respectively;
Described signal management device is additionally operable to sendaisle and selects signal to described first transducer, and the described HDBaseT signal being converted to is sent to the second corresponding transducer by described first transducer according to described channel selecting signal.
4. according to claim 3 class of board signal transmission system, it is characterised in that described channel selecting signal is usb signal.
5. class's board method for transmitting signals, it is characterised in that comprise the following steps:
By signal management device transmission HDMI signal to the first transducer;
By described first transducer, described HDMI signal is changed, obtain the second transducer discernible HDBaseT signal and send to described second transducer;
By described second transducer, described HDBaseT signal is changed, obtain class board discernible LVDS signal and send to described class board.
6. according to claim 5 class of board method for transmitting signals, it is characterized in that, before the described step by signal management device transmission HDMI signal to the first transducer, also include the step that by described signal management device, described first transducer and described second transducer are carried out initialization process.
7. according to claim 5 class of board method for transmitting signals, it is characterised in that the quantity of described class board is multiple, the quantity of described second transducer is identical with described class board quantity, and each described second transducer connects a corresponding class board respectively; Described by described first transducer, described HDMI signal is changed, before obtaining the second transducer discernible HDBaseT signal the step that sends to described second transducer, further comprising the steps of:
Signal extremely described first transducer is selected by described signal management device sendaisle;
Described by described first transducer, described HDMI signal is changed, obtain the second transducer discernible HDBaseT signal and transmission to described second transducer is, by described first transducer, described HDMI signal is converted to described HDBaseT signal, and according to described channel selecting signal, described HDBaseT signal sent to the second corresponding transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511008817.4A CN105657314B (en) | 2015-12-25 | 2015-12-25 | Class's board signal transmission system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511008817.4A CN105657314B (en) | 2015-12-25 | 2015-12-25 | Class's board signal transmission system and method |
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| CN105657314A true CN105657314A (en) | 2016-06-08 |
| CN105657314B CN105657314B (en) | 2019-02-01 |
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| CN201511008817.4A Active CN105657314B (en) | 2015-12-25 | 2015-12-25 | Class's board signal transmission system and method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103780953A (en) * | 2014-02-21 | 2014-05-07 | 深圳创维－Rgb电子有限公司 | Multimedia signal transmission method and system |
| CN104125434A (en) * | 2014-07-31 | 2014-10-29 | 深圳锐取信息技术股份有限公司 | Long-distance high-definition transmission system |
| CN204316626U (en) * | 2015-01-17 | 2015-05-06 | 深圳市索飞翔科技有限公司 | HDMI audio frequency and video switching device shifter can be extended |
-
2015
- 2015-12-25 CN CN201511008817.4A patent/CN105657314B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103780953A (en) * | 2014-02-21 | 2014-05-07 | 深圳创维－Rgb电子有限公司 | Multimedia signal transmission method and system |
| CN104125434A (en) * | 2014-07-31 | 2014-10-29 | 深圳锐取信息技术股份有限公司 | Long-distance high-definition transmission system |
| CN204316626U (en) * | 2015-01-17 | 2015-05-06 | 深圳市索飞翔科技有限公司 | HDMI audio frequency and video switching device shifter can be extended |
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| CN105657314B (en) | 2019-02-01 |
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