CN2506045Y - Radio dable receiving display apparatus - Google Patents
Radio dable receiving display apparatus Download PDFInfo
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- CN2506045Y CN2506045Y CN 01232389 CN01232389U CN2506045Y CN 2506045 Y CN2506045 Y CN 2506045Y CN 01232389 CN01232389 CN 01232389 CN 01232389 U CN01232389 U CN 01232389U CN 2506045 Y CN2506045 Y CN 2506045Y
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- wireless data
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Abstract
A wireless data receiving display comprises a low power consumption RF, a protocol decoder and a display module and the display is characterized in that: wireless data information is received by the low power consumption RF and transmitted to the protocol decoder to be decoded, and the wireless data information processed by central processing unit and then transmitted to the display module of a single color or colorful LED. The utility model with timely information updating and simple and convenient operation is mainly used for issuing all public information.
Description
The utility model relates to the reception and the display unit of wireless system for transmitting data, especially can realize the long distance wireless transmission and show control in real time.
At present, known light-emitting diode (LED) display screen adopts two kinds of transmission of Information modes, that is: wire transmission and infrared transmission.As everyone knows, wire transmission is display screen to be connected by cable with dispensing device finish the information transmission.If dispensing device is apart from the display screen length that just needs to increase cable far away, also need increase signal amplifying apparatus in case of necessity guaranteeing the complete reliable of information, thereby, increased the cost of whole system.Infrared transmission has similar shortcoming equally: at first, infrared transmission must be carried out under the situation that clear is blocked, very easily distortion of signal during long-distance transmissions; Secondly, this transmission means is subject to the interference of other luminaires, should not realize a large amount of information transmission continuously.
In order to overcome the difficulty of existing light-emitting diode (LED) display screen in remote message transmission, realize Remote, the function that shows in real time, the utility model provides a kind of wireless data to receive display, this display can be finished the reception and the demonstration of information quickly and easily, by setting different address codes, each light-emitting diode (LED) display screen all can receive and show different information, realizes that the Remote grouping shows in real time.This display screen is mainly used in the issue of public information, and information updating is timely, and is easy and simple to handle.
The technical solution of the utility model is:
Adopt general low-consumption wireless electricity receiver (RF) to receive radio signals and transmit the signal to protocol decoder then.Protocol decoder is differentiated the information whether this signal belongs to this display screen by checking the receiver address sign indicating number, if eligible, protocol decoder sends central processing unit (CPU) to then then with this signal decoding.After central processing unit (CPU) is received information, can control display module of the present utility model, memory and protocol decoder according to the instruction in the information, finish demonstration, preservation or deletion information, and the update software program, the work such as receiver address sign indicating number of protocol decoder changed.
The utility model is to utilize existing radio net to come transmission information, as paging network, GSM net, WLAN (wireless local area network) or FM broadcast network or the like.Change or the receive frequency of replacing low-consumption wireless electricity receiver (RF) and the decoding agreement of performance and protocol decoder, the utility model can adapt to above-mentioned different radio net, makes it to realize Remote, in real time the function that shows.
Below in conjunction with accompanying drawing and exemplifying embodiment the utility model is further specified.
Accompanying drawing 1 is circuit theory diagrams of the present utility model.
Accompanying drawing 2 is reception and control section circuit theory diagrams of the utility model embodiment.
In accompanying drawing 1, general low-consumption wireless electricity receiver RF Module (1) links to each other with protocol decoder (2).Protocol decoder (2) is connected with central processor CPU (3) jointly with computer splicing ear PC Connector (8).Wherein computer splicing ear PC Connector (8) is the interface that designs for convenient debugging, does not use during operate as normal.Central processor CPU (3) is also connecting flash memory FLASH (6), static RAM (SRAM) (5) and display module, makes it to realize functions such as control demonstration, information stores and computing.Button USER BUTTONS (7) also links to each other with central processor CPU (3), is convenient to Artificial Control and debugging.
Accompanying drawing 2, accompanying drawing 3 and accompanying drawing 4 have been described an exemplifying embodiment of the present utility model, and the wireless data that this example is based on wireless paging network receives display.
Accompanying drawing 2 links to each other by interface HEADER with accompanying drawing 3.
Accompanying drawing 3 links to each other with COL (000 to 127) pin by ROW (0 to 15) with accompanying drawing 4.
Its main chip that adopts is:
General low-consumption wireless electricity receiver: UAA2080.
Central processing unit: Philips 87L51FB
Protocol decoder: Philips PCD5003
Display unit: 74138,74595
Concrete workflow is:
UAA2080 is based on the decoding chip of Philips 2080 secondary FSK.It can directly change the radio signal of 158.85MHz (according to paging centers's needs, this frequency can change), and all POCSAG coded formats of compatible current page station.Signal is given PhilipsPCD5003 after handling by UAA2080, and its function of Philips PCD5003 is to become hexadecimal code to handle for central processing unit Philips 87L51FB the POCSAG code conversion.Certainly, this chip need set in advance address code, and the POCSAG coded message that only meets this address code just is converted.
After CPU87L51FB receives information,, and be connected with display module in the accompanying drawing 3 by interface HEADER this information storage.The main chip of display module is 74138 and 74595.CPU utilizes the rising edge of clock (CLK pin) that information is delivered to 74595 from the RED pin of interface HEADER, 74595 can sequentially be loaded on position information on each COL pin, connect 74595 as shown in Figure 3, can increase or reduce the columns of display module.The row of this example are shown as 128 points, so adopt 16 74595 (COL000 to COL127).The 74138th, the row control chip, each 74138 controls, 8 row, capable 16 row that are shown as of this example adopt 2 74138.Certainly increase or reduce 74138 number, equally also can change the line number of demonstration.When all COL pins of 16 74595 all load information, (being delegation's information loaded) 74138 can enable this row, and at this moment the light-emitting diode that connects on the COL pin shows according to position information.So sequentially load each row and sequentially enable each row, a screen information will intactly be shown.Suitably improve clock frequency, human eye can not felt the flicker of screen.
Exemplifying embodiment of the present utility model comprises following basic module:
1. general low-consumption wireless electricity receiver (is called in the following text: RF Module)
RF Module of the present utility model (1) is based on the decoding chip of Philips 2080 secondary FSK.It can directly change the signal of telecommunication of 158.85MHz (according to paging centers's needs, this frequency can change), all POCSAG codings of compatible current page station.Therefore, the utlity model has very big versatility.Certainly, the utility model can also use level Four FSK demodulation chip, to adapt to the new FLEX of paging centers host-host protocol.But, paging centers still uses secondary FLEX host-host protocol mostly at present, so the utility model adopts this agreement to adapt to current FLEX network system.
2. protocol decoder Philips 5003 (2)
Protocol decoder of the present utility model adopts Philips 5003 chips.Its function is to become hexadecimal code to handle for central processor CPU (3) the POCSAG code conversion that RFModule (1) accepts to come.Certainly, this chip need set in advance address code, and the POCSAG coded message that only meets this address code just is converted, thereby, the wireless device of the utility model and other same frequencys is distinguished.
3. central processing module
The processing of central processing module control display module, clock and data of the present utility model.It is made up of the static RAM (SRAM) (5) of a central processing unit Philips 87L51FB CPU (3), a 256K flash memory (6) and a 128K.Central processing unit Philips 87L51FB CPU (3) and protocol decoder Philips 5003 (2) are that the I2C bus by standard is connected; Is to connect by a bus with flash memory FLASH (6) with being connected of static RAM (SRAM) (5), can receive data, storage data and control simultaneously through the special processing central processing unit Philips 87L51FB CPU (3) of software program shows, use its input/output interface to greatest extent, reduced cost of the present utility model.
4. display module DSPLAY PANEL (4)
The position information that shows control word in design of the present utility model is displaced on the pin of each LED by rising edge clock, treat that all LED pins of this row all add control bit information after, this row of gating, then data are displayed in this delegation.In like manner, each row all can demonstrate information needed, each row of Alternation Display, and then whole screen will show complete character information.Just because of this kind control mode, LED of the present utility model can increase and reduce as required.Correctly use clock frequency, people's naked eyes can not felt the flicker of LED.When line number that increases LED and columns, suitably accelerate clock frequency, also can reach same effect.
5. other annexes
The utility model also has computer splicing ear PCConnector (8) and three button USER BUTTONS (7) except that above main functional modules.The computer splicing ear adopts the I2C agreement of standard in the world, can be connected and communication with computer easily.For three buttons, one of them is connected with the interrupt pin of central processing unit, i.e. hardware interrupts, and two other is connected with the I/O mouth of central processing unit, i.e. software interrupt.Its purpose is to make things convenient for Artificial Control, as when the utility model is downloaded software program, pins three buttons simultaneously, and software program just can be write by computer.In addition, use this three buttons separately, also can be used as the function key of reading information, finish the browsing of information, store, function such as deletion.About its concrete function, can design by software program as required.
Claims (3)
1, a kind of wireless data receives display, has general low-consumption wireless electricity receiver, protocol decoder and display module, it is characterized in that: wireless data information receives and is sent to described protocol decoder by described general low-consumption wireless electricity receiver, and described protocol decoder is sent to monochrome or colorful light-emitting diode display module with the wireless data information decoding after central processing unit is handled.
2, wireless data according to claim 1 receives display, and it is characterized in that: described centre device connects flash memory, static state and light-emitting diode display module simultaneously.
3, wireless data according to claim 1 receives display, and it is characterized in that: described light-emitting diode display module directly links to each other with described central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01232389 CN2506045Y (en) | 2001-08-21 | 2001-08-21 | Radio dable receiving display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01232389 CN2506045Y (en) | 2001-08-21 | 2001-08-21 | Radio dable receiving display apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2506045Y true CN2506045Y (en) | 2002-08-14 |
Family
ID=33646458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01232389 Expired - Fee Related CN2506045Y (en) | 2001-08-21 | 2001-08-21 | Radio dable receiving display apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2506045Y (en) |
-
2001
- 2001-08-21 CN CN 01232389 patent/CN2506045Y/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 | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Tao Chongli Document name: Notification of Termination of Patent Right |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |