CN201204026Y - Driven controller for electronic display screen system and electronic display screen control system - Google Patents
Driven controller for electronic display screen system and electronic display screen control system Download PDFInfo
- Publication number
- CN201204026Y CN201204026Y CNU2008200935396U CN200820093539U CN201204026Y CN 201204026 Y CN201204026 Y CN 201204026Y CN U2008200935396 U CNU2008200935396 U CN U2008200935396U CN 200820093539 U CN200820093539 U CN 200820093539U CN 201204026 Y CN201204026 Y CN 201204026Y
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- control unit
- electronic display
- controller
- slave controller
- frequency signal
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Abstract
The utility model discloses a slave controller for electronic display screen system, comprising a wireless transceiving device for receiving microwave frequency signal from the master controller, and transmitting microwave frequency signal formed by encoding data in the display control unit to the master controller; a signal processing unit connected to the wireless transceiving device and the display control unit, which is used for converting the received signal from microwave frequency signal into computer data code; a transmitting card connected to the display control unit, which is used for transmitting working instructions of the display control unit to an electronic display screen. The utility model further discloses a corresponding electronic display screen control system. The utility model avoids problem of inability of wiring due to long distance between the master and slave controllers, or special environment when distance is short enough, having wide control scope, compact construction, and being convenient for purchasing and using.
Description
Technical field
The utility model relates to the electronic display control technology, relates in particular to a kind of electronic display screen system slave controller and electronic display control system.
Background technology
Electronic display screen system is a collection microelectric technique, computer technology, the information processing technology be one LED electronic display technology, it can show the numeral of variation, literal, graph image, both can be applied to indoor environment, also can be applied to outdoor environment, it is bright in luster with it, dynamic range is wide, the brightness height, life-span is long, advantages such as working stability is reliable and become the ideal that numerous display medias and outdoor study show and select, obtain swift and violent development, be widely applied to bank, post and telecommunications, the tax, the airport, the station, securities market and other trade market, hospital, electric power, customs, multiple needs such as stadium are announced, the occasion of propaganda.
Electronic display screen system mainly is made up of LED electronic display and display screen control system, and described control system adopts open computer local network technology, mainly is made up of a master controller and Duo Tai slave controller:
Master controller generally adopts PC, and it is the control center of electronic display screen system, and the exchanges data between each slave controller also is to realize by master controller.Master controller can also be controlled the display effect of its corresponding display screen, and pixel is corresponding one by one on the display respective regions of the pixel of display screen and master controller, directly mapping.
Slave controller generally adopts chip microcontroller, can realize from server to the adjusting of display effect with to the editting function of display message.
In the prior art, master controller and all connect with serial communication interface between the control, its remote monitoring then generally realizes by standard RS23/RS485 modular converter.
The shortcoming of this scheme is the line more complicated between master controller and the slave controller, and its signal reception, demonstration, dispensing device be independent community, is not easy to buy and use.
The utility model content
Technical problem to be solved in the utility model is: a kind of electronic display slave controller is provided, and this slave controller collection signal receives, shows, is sent as one, convenient buy and use, and save and master controller between complicated line trouble.
The further technical matters to be solved of the utility model is: a kind of electronic display control system is provided, need not complicated serial ports line between this system's master-slave controller, and its slave controller segment set signal receives, shows, is sent as one, the convenient purchase and use.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of electronic display screen system slave controller includes:
Indicative control unit is used for carrying out the master-slave mode communication with master controller, the work of control electronic display;
Also include:
Wireless transmitter, be used to receive autonomous controller microwave frequency signal, and will send to master controller by the microwave frequency signal that digital coding in the described indicative control unit is transformed;
Signal processing unit links to each other with described wireless transmitter and described indicative control unit, is used for its signal that receives is carried out conversion between microwave frequency signal and the computer data coding;
Send card, link to each other, be used for the work order of described indicative control unit is sent to electronic display with described indicative control unit.
Correspondingly, the present invention also provides a kind of electronic display control system, comprises a master controller and at least one slave controller, and described master controller and slave controller are realized the demonstration control to display screen by the master-slave mode communication, and described master controller includes:
Master control PC is used to deposit various information datas and idsplay order data, file and data sharing service is provided, realizes the exchanges data between each slave controller to slave controller;
Radio signal senders is used for the digital coding of master controller is converted into microwave frequency signal, and sends to described slave controller;
Described slave controller includes:
Wireless transmitter, be used to receive autonomous controller microwave frequency signal, and will send to master controller by the microwave frequency signal that digital coding in the described indicative control unit is transformed;
Signal processing unit links to each other with described wireless transmitter and described indicative control unit, is used for its signal that receives is carried out conversion between microwave frequency signal and the computer data coding;
Indicative control unit is used for the work order that comes the digital coding may command electronic display of autonomous controller according to described;
Send card, link to each other, be used for the work order of described indicative control unit is sent to electronic display with described indicative control unit.
The beneficial effects of the utility model are:
Embodiment of the present utility model realizes the communication between the master-slave controller in the electronic display control system by adopting microwave antenna, avoided between the master-slave controller because of can not the construct problem of wiring of reasons such as remote construction wiring or short distance particular surroundings, range of control is wide, the union signal receives, shows, is sent as one, the structure small compact, the convenient purchase and use.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is the composition structural drawing of the embodiment of electronic display control system that provides of the utility model.
Fig. 2 is the composition structural drawing of the embodiment master controller of electronic display control system that provides of the utility model.
Fig. 3 is the composition structural drawing of the embodiment slave controller of electronic display control system that provides of the utility model.
Embodiment
With reference to figure 1, this figure is the composition structural drawing of the embodiment of electronic display control system that provides of the utility model; As shown in the figure, present embodiment includes a master controller 2 and Duo Tai slave controller 1, with wireless connections, by the master-slave mode communication, realizes the demonstration control to display screen between master controller 2 and each slave controller 1, and its each several part composition and function are as follows:
With reference to figure 2, master controller 2 further includes:
Master control PC21 is used to deposit various information datas and idsplay order data, and slave controller provides file and data sharing service, realizes the functions such as exchanges data between each slave controller in network;
Radio signal senders 22 is used for the digital coding of master controller is converted into microwave frequency signal, and sends to described slave controller by microwave antenna.
During specific implementation, master controller 2 is by the remote control software in the operation master control PC21, and with the microwave antenna transfer control instruction, the LED in adapter slave controller 1, the operation slave controller 1 performs in a radio or TV programme software and sends play instruction to the LED electronic display.Master controller 2 also can be with himself various information data and idsplay order data by remote control software with microwave antenna slave controller 1 in network, and in the hard disk of slave controller 1, store, perform in a radio or TV programme software by the LED that operates slave controller again and perform in a radio or TV programme instruction to the issue of LED electronic display.
With reference to figure 3, slave controller 1 further comprises:
Send card 14, link to each other, be used for the work order of described indicative control unit is sent to electronic display with described indicative control unit.
Wherein, described signal processing unit 12 includes:
In addition, slave controller 1 also includes the signal Processing working power 15 that links to each other with described signal processing unit 12, is used for to described signal processing unit power supply.
Interface between the each part mentioned above is as follows:
Interface between master controller 2 master control PC21 and the radio signal senders 22 is the RS45 interface;
Connect by the RS45 interface with special-purpose feeder line or netting twine between slave controller 1 wireless transmitter 11 and the signal processing unit 12; Signal processing unit 12 is the RS45 interface with the interface of indicative control unit 13, signal Processing working power 15; Indicative control unit 13 and the interface that sends between the card 14 are RS232 and DVI interface; Send between card 14 and the electronic display and pass through the RS45 interface with netting twine.
Except that each part mentioned above, slave controller also includes memory storage (as hard disk) and the single-chip microcomputer working power that is used to deposit information data and idsplay order data, and this is a prior art, gives unnecessary details no longer one by one.
During specific implementation, described wireless transmitter 11 is provided with a SMA interface, and this interface is connected with microwave antenna, can realize radio transmission-receiving function.
Work in the emission or the receiving antenna of wave bands such as metric wave, decimetric wave, centimeter wave, millimeter wave, be referred to as microwave antenna.Microwave is mainly propagated by space wave, and for increasing communication distance, antenna installation is higher.In microwave antenna, use wider have parabola antenna, horn reflector antenna, electromagnetic horn, lens antenna, slot antenna, diectric antenna, periscopic antenna etc.What the WLAN antenna was commonly used is the centimeter wave antenna, based on omnidirectional antenna, plate antenna, parabola antenna.
Antenna all has reversibility, promptly both can be used as emitting antenna with common antenna, also can be used as receiving antenna.The same antenna is identical as the fundamental characteristics parameter of emission or reception.
Signal emission/reception the principle of antenna once is described below: antenna itself is exactly an oscillator, but different with common LC oscillation circuit, and it is the distortion of common oscillation circuit.If oscillatory circuit is launched, make electromagnetic field be distributed in the very big scope in space, this has just created the condition that helps radiation; So, deliver on the antenna by feeder line from high-frequency signal electric current apparatus for transmitting signal, modulated, and change corresponding electromagnetic wave energy into through sky bundle of lines high-frequency current energy, after the electromagnetic energy of space radiation radiate from transmission antenna, will propagate forward along all directions of ground surface.If place a lead in alternating electromagnetic field, because the magnetic force line cutting lead, just at certain alternating voltage one electromotive force of lead two ends excitation, its frequency is identical with transmission frequency.If this lead is linked to each other with signal receiver by feeder line, in signal receiver, just can obtain the electric current of modulated wave signal.Therefore, this lead has just play a part to receive electromagnetic wave energy and change the high-frequency signal current energy into, so claim that this lead is a collection of letters antenna.No matter be transmission antenna or collection of letters antenna, they all belong to energy converter, and " reversibility " is the characteristic of general energy converter.Same common antenna, it both can be used as transmission antenna and had used, and also can be used as collection of letters antenna and used, and communication facilities generally all is that sending and receiving are jointly with an antenna.Therefore, same antenna both had been related to the effective energy output of transmission system, directly affected the performance of receiver system using again.The reversibility of antenna shows that not only transmission antenna can be used as collection of letters antenna, collection of letters antenna can be used as transmission antenna, and show the parameter when antenna is used as transmission antenna, remain unchanged, the principle of reciprocity of Here it is antenna with parameter when the collection of letters antenna.
The maximum transmission range of microwave antenna is that 50 kms (outdoor), maximum horizontal transmission angle are that 60 degree, maximum perpendicular transmission angle are 15 degree in the present embodiment.
In fact, described signal receiving/transmission device 11 and signal processing unit 12 are the functions of a wireless bridge in conjunction with what realize.Wireless bridge is a kind ofly to realize interconnected store-and-forward unit between two LAN (Local Area Network) at link layer, and it carries out remote point-to-point internetworking for use wireless (microwave) and designs.It transmits Frame according to MAC Address, and two LAN (Local Area Network) are linked up.Can be used for remote, high-speed radio networking between stationary digital device and other stationary digital device.Its main networking mode has three kinds: point-to-point, relaying connects and point-to-multipoint.
According to the difference of Physical layer, widely used 802.11 agreements that three versions are arranged are respectively 802.11a, 802.11b and 802.11g at present.Aspect frequency, 802.11a adopts the 2.4GHz frequency at AP to employing 5.8GHz frequency, 802.11b and 802.11g between the communication of AP in the hot-zone.On the frequency modulation module three also have difference: 802.11b to adopt Direct swquence spread spectrum (Direct Sequence SpreadSpectrum DSSS), supports that bandwidth reaches as high as 11Mbps; 802.11a and 802.11g adopts orthogonal frequency division multiplexi, and (Orthogonal Frequency Division Multiplexing OFDM), support that bandwidth reaches as high as 54Mbps, and this modulation system of OFDM is fit to outdoor environment more.
The above is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection domain of the present utility model.
Claims (10)
1, a kind of electronic display screen system slave controller includes:
Indicative control unit is used for carrying out the master-slave mode communication with master controller, the work of control electronic display;
It is characterized in that described slave controller also includes:
Wireless transmitter, be used to receive autonomous controller microwave frequency signal, and will send to master controller by the microwave frequency signal that digital coding in the described indicative control unit is transformed;
Signal processing unit links to each other with described wireless transmitter and described indicative control unit, is used for its signal that receives is carried out conversion between microwave frequency signal and the computer data coding;
Send card, link to each other, be used for the work order of described indicative control unit is sent to electronic display with described indicative control unit.
2, electronic display screen system slave controller as claimed in claim 1 is characterized in that, described signal processing unit includes:
The Data Receiving unit is used for the microwave frequency signal that described wireless transmitter receives is converted to digital coding, and sends to described indicative control unit;
Data transmission unit is used for the digital coding from described indicative control unit is converted to microwave frequency signal, and sends to described wireless transmitter.
3, electronic display screen system slave controller as claimed in claim 1 or 2 is characterized in that, described wireless transmitter is a microwave antenna.
4, electronic display screen system slave controller as claimed in claim 3 is characterized in that, described slave controller also includes the signal Processing working power that links to each other with described signal processing unit, is used for to described signal processing unit power supply.
5, electronic display screen system slave controller as claimed in claim 3 is characterized in that, the maximum transmission range of microwave antenna is that 50 kms, maximum horizontal transmission angle are that 60 degree, maximum perpendicular transmission angle are 15 degree.
6, electronic display screen system slave controller as claimed in claim 3 is characterized in that, the emission/receive frequency of microwave antenna is 2.4GHz or 5.8GHz.
7, a kind of electronic display control system comprises a master controller and at least one slave controller, and described master controller and slave controller are realized the demonstration control to display screen by the master-slave mode communication, it is characterized in that described master controller includes:
Master control PC is used to deposit various information datas and idsplay order data, file and data sharing service is provided, realizes the exchanges data between each slave controller to slave controller;
Radio signal senders is used for the digital coding of master controller is converted into microwave frequency signal, and sends to described slave controller;
Described slave controller includes:
Wireless transmitter, be used to receive autonomous controller microwave frequency signal, and will send to master controller by the microwave frequency signal that digital coding in the described indicative control unit is transformed;
Signal processing unit links to each other with described wireless transmitter and described indicative control unit, is used for its signal that receives is carried out conversion between microwave frequency signal and the computer data coding;
Indicative control unit is used for the work order that comes the digital coding may command electronic display of autonomous controller according to described;
Send card, link to each other, be used for the work order of described indicative control unit is sent to electronic display with described indicative control unit.
8, electrical screen display control program as claimed in claim 7 is characterized in that, described signal processing unit includes:
The Data Receiving unit is used for the microwave frequency signal that described wireless transmitter receives is converted to digital coding, and sends to described indicative control unit;
Data transmission unit is used for the digital coding from described indicative control unit is converted to microwave frequency signal, and sends to described wireless transmitter.
9, as claim 7 or 8 described electrical screen display control programs, it is characterized in that described wireless transmitter is a microwave antenna.
10, electrical screen display control program as claimed in claim 9 is characterized in that, described slave controller also includes the signal Processing working power that links to each other with described signal processing unit, is used for to described signal processing unit power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200935396U CN201204026Y (en) | 2008-04-23 | 2008-04-23 | Driven controller for electronic display screen system and electronic display screen control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200935396U CN201204026Y (en) | 2008-04-23 | 2008-04-23 | Driven controller for electronic display screen system and electronic display screen control system |
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| Publication Number | Publication Date |
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| CN201204026Y true CN201204026Y (en) | 2009-03-04 |
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| CNU2008200935396U Expired - Fee Related CN201204026Y (en) | 2008-04-23 | 2008-04-23 | Driven controller for electronic display screen system and electronic display screen control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426774A (en) * | 2011-10-14 | 2012-04-25 | 广东威创视讯科技股份有限公司 | Infrared remote control unit and splicing wall system |
| CN108898985A (en) * | 2018-08-01 | 2018-11-27 | 大连海事大学 | A kind of master-slave mode fiber Video play system |
| CN111784939A (en) * | 2020-06-08 | 2020-10-16 | 深圳怡化电脑股份有限公司 | Electrical control system and self-service financial equipment |
-
2008
- 2008-04-23 CN CNU2008200935396U patent/CN201204026Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426774A (en) * | 2011-10-14 | 2012-04-25 | 广东威创视讯科技股份有限公司 | Infrared remote control unit and splicing wall system |
| CN108898985A (en) * | 2018-08-01 | 2018-11-27 | 大连海事大学 | A kind of master-slave mode fiber Video play system |
| CN111784939A (en) * | 2020-06-08 | 2020-10-16 | 深圳怡化电脑股份有限公司 | Electrical control system and self-service financial equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20100423 |