CN203573620U - Communication countdown state display circuit - Google Patents
Communication countdown state display circuit Download PDFInfo
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- CN203573620U CN203573620U CN201320740645.XU CN201320740645U CN203573620U CN 203573620 U CN203573620 U CN 203573620U CN 201320740645 U CN201320740645 U CN 201320740645U CN 203573620 U CN203573620 U CN 203573620U
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- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
Provided is a communication countdown state display circuit. The communication countdown state display circuit comprises a countdown signal interface module, a microprocessor, a display module, a display driving module, an identification code setting switch and a baud rate setting switch, the countdown signal interface module is connected with the microprocessor, the microprocessor is connected with the display driving module and the display module, the display driving module is connected with the display module, and the identification code setting switch and the baud rate setting switch are both connected with the microprocessor. According to the communication countdown state display circuit, the display module is employed to intuitively display the identification code and the baud rate of the countdown so that both the identification code and the baud rate can be set.
Description
Technical field
The utility model relates to a kind of communication countdown status display circuit.
Background technology
Existing traffic lights communication timing circuit can not show identification code and the baud rate of countdown intuitively.In addition, signal easy distortion in the situation that thundering or occur surge is even lost, job insecurity.Moreover existing circuit only can arrange identification code by toggle switch, the function of baud rate is not set.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of communication countdown status display circuit, and it can show identification code and the baud rate of countdown.
For achieving the above object, the utility model adopts following technical scheme:
A communication countdown status display circuit, it comprises that countdown Signal interface module, microprocessor, display module, driver module, identification code arrange switch and Configuration of baud rate switch; This countdown Signal interface module connects this microprocessor, and this microprocessor connects this driver module and this display module, and this driver module connects this display module, and identification code arranges switch and is all connected microprocessor with Configuration of baud rate switch.
Further, this display module comprises some charactrons.
Further, identification code arranges switch and Configuration of baud rate switch is keyswitch.
Further, communication countdown status display circuit also comprises rectification module, lightning protection module of power source, alternating current input interface, height voltage conversion circuit and DC voltage converting circuit; This alternating current input interface is connected this DC voltage converting circuit by lightning protection module of power source, rectification module and height voltage conversion circuit successively, this height voltage conversion circuit also connects display module, and this DC voltage converting circuit also connects countdown Signal interface module, microprocessor and driver module.
Further, this lightning protection module of power source comprises the first electric capacity, the first resistance and three lightning protection unit, the corresponding signal pins that connects this signal lamp interface of each lightning protection unit, and each group lightning protection unit comprises the second electric capacity, the second resistance and the 3rd electric capacity; Each signal pins of this signal lamp interface is successively by corresponding the second electric capacity, the second resistance, the first electric capacity and the first resistance eutral grounding, and one end of the 3rd electric capacity connects corresponding signal pins, and the other end connects the first resistance.
Further, this countdown Signal interface module comprises RS485 interface, lightning-protection surge module and RS485 interface circuit, and this RS485 interface is connected this microprocessor by this lightning-protection surge module with this RS485 interface circuit.
The beneficial effects of the utility model are as follows:
1, the utility model can show identification code and the baud rate of countdown intuitively by display module, not only identification code can be set, and also baud rate can be set.
2, there is lightning-protection surge function, can make signal transmission more stable.
3, the utility model is applied widely, long service life.
Accompanying drawing explanation
Fig. 1 is the module diagram of the better embodiment of the utility model communication countdown status display circuit.
Fig. 2 is the circuit diagram of display module of the communication countdown status display circuit of Fig. 1.
The circuit diagram of the driver module of the countdown status display circuit of communicating by letter that Fig. 3 is Fig. 1 with Fig. 4.
Fig. 5 is the peripheral circuits figure of microprocessor of the communication countdown status display circuit of Fig. 1.
Fig. 6 is the circuit diagram of lightning protection module of power source of the communication countdown status display circuit of Fig. 1.
Fig. 7 is the circuit diagram of lightning-protection surge module of the communication countdown status display circuit of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
Refer to Fig. 1 to Fig. 7, the utility model relates to a kind of communication countdown status display circuit, and its better embodiment comprises that countdown Signal interface module 70, microprocessor 30, display module 11, driver module 12, height voltage conversion circuit 65, DC voltage converting circuit 63, identification code arrange switch 21, Configuration of baud rate switch 22, rectification module 62, lightning protection module of power source 42 and alternating current input interface 61.
This countdown Signal interface module 70 connects this microprocessor 30, for transmitting countdown signal to this microprocessor 30.This microprocessor 30 connects this driver module 12 and this display module 11, this driver module 12 connects this display module 11, and this microprocessor 30 is for showing intuitively identification code and the baud rate of countdown by this driver module 12 and this display module 11 according to this countdown signal.
Identification code arranges switch 21 and is all connected microprocessor 30 with Configuration of baud rate switch 22.Identification code arranges switch 21 for identification code is set, and Configuration of baud rate switch 22 is for arranging baud rate.In the present embodiment, switch 21 is set identification code and Configuration of baud rate switch 22 is keyswitch.
This alternating current input interface 61 is connected this DC voltage converting circuit 63 by lightning protection module of power source 42, rectification module 62 and height voltage conversion circuit 65 successively, this height voltage conversion circuit 65 also connects display module 11, this DC voltage converting circuit 63 also connects countdown Signal interface module 70, microprocessor 30 and driver module 12, to export suitable DC voltage to respectively using electric device.
In the present embodiment, this display module 11 comprises some charactrons, is conducive to reduce costs.
This lightning protection module of power source 42 is for lightning current is imported to ground, thereby the large electric current that while avoiding thundering, moment occurs hits damage circuit.In the present embodiment, this lightning protection module of power source 42 comprises electric capacity RJ4, resistance R V4 and three lightning protection unit, the corresponding signal pins that connects this signal lamp interface of each lightning protection unit, and each group lightning protection unit comprises electric capacity RJ1, resistance R V1 and capacitor C 1.Each signal pins of this signal lamp interface is successively by corresponding electric capacity RJ1, resistance R V1, electric capacity RJ4 and resistance R V4 ground connection, and one end of this capacitor C 1 connects corresponding signal pins, other end contact resistance RJ4.
In the present embodiment, this countdown Signal interface module 70 comprises RS485 interface 71, lightning-protection surge module 72 and RS485 interface circuit 73, and this RS485 interface 71 is connected this microprocessor 30 by this lightning-protection surge module 72 with this RS485 interface circuit 73.
This lightning-protection surge module 41 is for overvoltage protection; so, when large voltage appears in loop moment, this lightning-protection surge module 41 is stable loop voltage effectively; avoid countdown Signal interface module 70 to occur loss of data, make countdown Signal interface module 70 data transmission more stable.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and distortion all should belong to the protection domain of the utility model claim within.
Claims (6)
1. a communication countdown status display circuit, is characterized in that: it comprises that countdown Signal interface module, microprocessor, display module, driver module, identification code arrange switch and Configuration of baud rate switch; This countdown Signal interface module connects this microprocessor, and this microprocessor connects this driver module and this display module, and this driver module connects this display module, and identification code arranges switch and is all connected microprocessor with Configuration of baud rate switch.
2. communication countdown status display circuit as claimed in claim 1, is characterized in that: this display module comprises some charactrons.
3. communication countdown status display circuit as claimed in claim 1, is characterized in that: switch is set identification code and Configuration of baud rate switch is keyswitch.
4. communication countdown status display circuit as claimed in claim 1, is characterized in that: communication countdown status display circuit also comprises rectification module, lightning protection module of power source, alternating current input interface, height voltage conversion circuit and DC voltage converting circuit; This alternating current input interface is connected this DC voltage converting circuit by lightning protection module of power source, rectification module and height voltage conversion circuit successively, this height voltage conversion circuit also connects display module, and this DC voltage converting circuit also connects countdown Signal interface module, microprocessor and driver module.
5. communication countdown status display circuit as claimed in claim 4, it is characterized in that: this lightning protection module of power source comprises the first electric capacity, the first resistance and three lightning protection unit, the corresponding signal pins that connects this signal lamp interface of each lightning protection unit, each group lightning protection unit comprises the second electric capacity, the second resistance and the 3rd electric capacity; Each signal pins of this signal lamp interface is successively by corresponding the second electric capacity, the second resistance, the first electric capacity and the first resistance eutral grounding, and one end of the 3rd electric capacity connects corresponding signal pins, and the other end connects the first resistance.
6. the communication countdown status display circuit as described in any one in claim 1 to 5, it is characterized in that: this countdown Signal interface module comprises RS485 interface, lightning-protection surge module and RS485 interface circuit, this RS485 interface is connected this microprocessor by this lightning-protection surge module with this RS485 interface circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740645.XU CN203573620U (en) | 2013-11-20 | 2013-11-20 | Communication countdown state display circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740645.XU CN203573620U (en) | 2013-11-20 | 2013-11-20 | Communication countdown state display circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203573620U true CN203573620U (en) | 2014-04-30 |
Family
ID=50541341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320740645.XU Expired - Lifetime CN203573620U (en) | 2013-11-20 | 2013-11-20 | Communication countdown state display circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203573620U (en) |
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2013
- 2013-11-20 CN CN201320740645.XU patent/CN203573620U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |