CN209895500U - Non-polar road traffic signal countdown display device - Google Patents
Non-polar road traffic signal countdown display device Download PDFInfo
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- CN209895500U CN209895500U CN201921586961.XU CN201921586961U CN209895500U CN 209895500 U CN209895500 U CN 209895500U CN 201921586961 U CN201921586961 U CN 201921586961U CN 209895500 U CN209895500 U CN 209895500U
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Abstract
The utility model discloses a nonpolarity road traffic signal display device that counts down, include: casing, backplate, power supply, nonpolarity semaphore serial port interface, count down agreement resolver and count down display screen, compare with prior art, the utility model discloses a nonpolarity road traffic signal count down display device has avoided count down in the past and the semaphore wiring must dock according to the polarity standard, if connect the mistake then can not realize having the function, because the circuit is longer and be in on the signal lamp member with in the buried pipeline, whether the investigation connects the mistake very trouble, influences the problem of construction progress.
Description
Technical Field
The utility model relates to a road traffic technical field, concretely relates to nonpolarity road traffic signal count-down display device.
Background
The road traffic signal countdown display device is mainly used for controlling intersections by the traffic lights in multiple time periods and multiple schemes in fixed time distribution, 2 countdown time is displayed, the longest display time is 99 seconds (the longest display time is F9), and all green light, yellow light or red light time can be synchronously displayed. In the existing road traffic signal countdown display device, the road traffic signal countdown display device and a signal machine wiring are butted according to a polarity standard, if the wiring is wrong, the function can not be realized, and because the line is longer and is positioned on a signal lamp rod piece and in a buried pipeline, the trouble of checking whether the wiring is wrong or not is very troublesome, and the construction progress is influenced. In addition, the conventional road traffic signal countdown display device adopts a common serial port chip such as MAX3485 and the like, and the problem that the road traffic signal countdown screen is not bright and the like can be caused even if the line is correctly butted due to insufficient driving capability, if the problem needs to be solved, a signal machine manufacturer assigns a hardware engineer to detect and modify a circuit.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a nonpolarity road traffic signal display device that counts down to solve current road traffic signal display device that counts down and semaphore wiring must dock according to the polarity standard, because connect the problem that wrong or serial ports chip driving force leads to the trouble inadequately easily.
The utility model provides a nonpolarity road traffic signal display device that counts down, include: the device comprises a shell, a back plate, a power supply, a non-polar annunciator serial port interface, a countdown protocol analyzer and a countdown display screen;
the power supply, the nonpolar annunciator serial port interface, the countdown protocol analyzer and the countdown display screen are arranged on the back plate, the back plate is buckled on the shell, the power supply, the nonpolar annunciator serial port interface, the countdown protocol analyzer and the countdown display screen are positioned between the shell and the back plate, the countdown display screen is positioned on the inner side of the shell, and a hollow part is arranged in an area of the surface of the shell corresponding to the countdown display screen;
the power supply is electrically connected with the countdown protocol analyzer and the countdown display screen respectively so as to supply power to the countdown protocol analyzer and the countdown display screen;
the non-polar serial port interface of the annunciator is used for being in butt joint with a serial port of an annunciator manufacturer;
the countdown protocol analyzer is electrically connected with the non-polar annunciator serial port interface so as to generate countdown data after analyzing countdown protocols of different annunciator manufacturers;
the countdown display screen is electrically connected with the countdown protocol parser to display countdown data.
Optionally, a short-circuit protection circuit, an overload protection circuit, and a voltage protection circuit are configured in the power supply.
Optionally, the power supply is internally provided with a lightning and surge protection circuit and a built-in pulse group attenuator.
Optionally, the non-polar signal machine serial port interface includes a first RS485 interface and a second RS485 interface, the input end of the first RS485 interface is isolated from the input end of the second RS485 interface, the output end of the first RS485 interface is isolated from the output end of the second RS485 interface, and the polarity of the second RS485 interface is opposite to that of the first RS485 interface.
Optionally, the countdown protocol parser employs an arm port-M4 processor.
Optionally, the countdown display screen adopts 8 sections of nixie tubes for displaying
The utility model has the advantages as follows: the utility model relates to a non-polar road traffic signal countdown display device, which is provided with a power supply, a non-polar annunciator serial port interface, a countdown protocol analyzer and a countdown display screen,
the power supply is respectively electrically connected with the countdown protocol analyzer and the countdown display screen to supply power to the countdown protocol analyzer and the countdown display screen, the non-polar annunciator serial port interface is utilized to be butted with the serial port of an annunciator manufacturer, the countdown protocol analyzer is electrically connected with the non-polar annunciator serial port interface to analyze the countdown protocol of different annunciator manufacturers and generate countdown data, and the countdown display screen is electrically connected with the countdown protocol analyzer to display the countdown data, compared with the prior art, the non-polar road traffic signal countdown display device of the utility model avoids the problem that the traditional countdown and annunciator wiring must be butted according to the polarity standard, if the connection is wrong, the function can not be realized, and the circuit is longer and is positioned on a signal lamp rod and in a buried pipeline, the problem that whether the connection is wrong or not is very troublesome and the construction progress is influenced is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a non-polar road traffic signal countdown display device provided by the present invention;
fig. 2 is a circuit diagram of a power supply of the non-polar road traffic signal countdown display device provided by the present invention;
fig. 3 is a circuit diagram of a non-polar annunciator serial port interface of the non-polar road traffic signal countdown display device provided by the utility model;
fig. 4 is a circuit diagram of a countdown protocol parser of the nonpolar road traffic signal countdown display device provided by the present invention;
fig. 5 is the circuit diagram of the countdown display screen of the non-polar road traffic signal countdown display device provided by the utility model.
Illustration of the drawings: 100-a housing; 200-a back plate; 1-a power supply; 2-a non-polar annunciator serial port interface; 3-countdown protocol parser; 4-countdown display screen.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.
Referring to fig. 1 to 5, an embodiment of the present invention provides a non-polar road traffic signal countdown display device, including: the device comprises a shell 100, a back panel 200, a power supply 1, a non-polar annunciator serial port interface 2, a countdown protocol parser 3 and a countdown display screen 4.
The power supply 1, the nonpolar annunciator serial port interface 2, the countdown protocol parser 3 and the countdown display screen 4 are arranged on the back panel 200, the back panel 200 is buckled on the shell 100, the power supply 1, the nonpolar annunciator serial port interface 2, the countdown protocol parser 3 and the countdown display screen 4 are positioned between the shell 100 and the back panel 200, the countdown display screen 4 is positioned on the inner side of the shell 100, and a hollow part is arranged in an area of the surface of the shell 100, which corresponds to the countdown display screen 4, so as to expose a display area of the countdown display screen 4.
Specifically, the power supply 1 is electrically connected to the countdown protocol parser 3 and the countdown display screen 4 respectively, so as to supply power to the countdown protocol parser 3 and the countdown display screen 4.
Referring to fig. 2, in this embodiment, the power supply 1 is configured with a short-circuit protection circuit, an overload protection circuit and a voltage protection circuit, and the power supply 1 is configured with a built-in lightning protection surge protection circuit and a built-in pulse group attenuator, the utility model discloses a modular power supply 1 performs power conversion, and the advantage of the module power is that the module power has a very small size, high power density, and is efficient compared with a transformer, and if the transformer is used, the loss is large and the cost is too high. The utility model discloses a the size of the PCB that has significantly reduced after the power supply of modular power supply 1, the circuit that exposes outside is less, and easy maintenance is convenient.
Specifically, the non-polar serial port interface 2 of the annunciator is used for being in butt joint with a serial port of an annunciator manufacturer.
Referring to fig. 3, in this embodiment, the non-polar signal serial port interface 2 includes a first RS485 interface and a second RS485 interface, an input end of the first RS485 interface is isolated from an input end of the second RS485 interface, an output end of the first RS485 interface is isolated from an output end of the second RS485 interface, a polarity of the second RS485 interface is opposite to a polarity of the first RS485 interface, the first RS485 interface may be designed according to a normal polarity, and the second RS485 interface is designed according to an opposite polarity to achieve a non-polar docking effect through a dual RS485 interface design. In addition, a 330-omega pull-up resistor is externally connected to a 485-A pin on the first RS485 interface and a 485-B pin on the second RS485 interface, a 330-ohm pull-down resistor is externally connected to a 485-B pin to guarantee signal pressure difference, the first RS485 interface and the second RS485 interface are connected with different serial port pins with the chip, which RS485 interface is correctly connected with data is determined by judging the correctness of the data of the two serial ports of the chip, and the enabling pin of the RS485 interface for controlling the error data after the judgment is finished enables the RS485 interface not to receive the data.
Specifically, the countdown protocol analyzer 3 is electrically connected with the non-polar annunciator serial port interface 2 so as to generate countdown data after analyzing countdown protocols of different annunciator manufacturers.
Referring to fig. 4, in the embodiment, the countdown protocol parser 3 employs an arm port-M4 processor, and the present invention employs the latest arm port-M4 kernel, so that the present invention has the advantages of low power consumption, high power consumption, and easy secondary development and program update. The factory is provided with a built-in national standard protocol and a default protocol, a program is not required to be switched, the corresponding protocol is switched through the dial switch, and the dial switch also comprises the switching in four directions of north, east, south and west.
Specifically, the countdown display screen 4 is electrically connected to the countdown protocol parser 3 to display countdown data.
Please refer to fig. 5, in this embodiment, the countdown display screen 4 adopts 8 sections of nixie tubes to display, the utility model discloses an 8 sections of nixie tubes display, the modularization encapsulation has increased the convenience of maintenance and investigation problem, the main chip is through connecting the non-reversal transparent latch of eight ways of 3 state outputs, guaranteed when the data of input disappears, can still keep in the output of chip end to the driving force has been increased, thereby it can not influence normal countdown output because of sudden electromagnetic interference, also can prevent simultaneously that the program maloperation or count down the output and appear messy code because of watchdog to the chip restart in this section of time.
To sum up, the utility model discloses a nonpolarity road traffic signal display device that counts down has solved the problem that traditional road traffic signal display device that counts down must lead to according to polarity butt joint RS485 interface, and count down serial connections must connect according to regulation polarity in the past, accounts for 30% approximately because of the problem that the polarity problem leads to in the construction according to statistics, utility model discloses a nonpolarity road traffic signal display device that counts down has stopped the emergence of this type of condition completely.
Furthermore, the utility model discloses a nonpolarity road traffic signal display device that counts down is through the design of adding the modularization power, has solved because of the transformer often damages the problem that leads to the count down screen not bright, and the wiring that corresponds simultaneously reduces. The utility model discloses a nonpolarity road traffic signal count-down display device has guaranteed the reliability of procedure and the convenience of upgrading through adopting ARMCortex-M4 kernel, makes its performance more powerful, and has solved the too much problem of procedure version that the procedure caused because of different producer agreements. The utility model discloses a nonpolarity road traffic signal count-down display device shows through 8 sections charactron, makes the maintenance more convenient, only need take off the charactron module directly change can, need not change a count-down again, practices thrift cost and time.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A non-polar road traffic signal countdown display device, comprising: the device comprises a shell (100), a back plate (200), a power supply (1), a non-polar annunciator serial port interface (2), a countdown protocol resolver (3) and a countdown display screen (4);
the power supply (1), the nonpolar annunciator serial port interface (2), the countdown protocol analyzer (3) and the countdown display screen (4) are arranged on the back plate (200), the back plate (200) is buckled on the shell (100), the power supply (1), the nonpolar annunciator serial port interface (2), the countdown protocol analyzer (3) and the countdown display screen (4) are positioned between the shell (100) and the back plate (200), the countdown display screen (4) is positioned on the inner side of the shell (100), and a hollow-out part is arranged on the surface of the shell (100) corresponding to the area of the countdown display screen (4);
the power supply (1) is electrically connected with the countdown protocol analyzer (3) and the countdown display screen (4) respectively so as to supply power to the countdown protocol analyzer (3) and the countdown display screen (4);
the non-polar serial port interface (2) of the annunciator is used for being in butt joint with a serial port of an annunciator manufacturer;
the countdown protocol analyzer (3) is electrically connected with the non-polar annunciator serial port interface (2) so as to analyze countdown protocols of different annunciator manufacturers and then generate countdown data;
the countdown display screen (4) is electrically connected with the countdown protocol resolver (3) to display countdown data.
2. The non-polar road traffic signal countdown display device according to claim 1, wherein the power supply source (1) is configured with a short circuit protection circuit, an overload protection circuit, and a voltage protection circuit therein.
3. The non-polar road traffic signal countdown display device according to claim 2, wherein the power supply (1) is built-in with a lightning protection and surge protection circuit and a pulse group attenuator.
4. The nonpolar road traffic signal countdown display device according to claim 1, wherein the nonpolar signal serial port interface (2) comprises a first RS485 interface and a second RS485 interface, the input end of the first RS485 interface is isolated from the input end of the second RS485 interface, the output end of the first RS485 interface is isolated from the output end of the second RS485 interface, and the polarity of the second RS485 interface is opposite to that of the first RS485 interface.
5. The nonpolarity road traffic signal countdown display device according to claim 1, wherein the countdown protocol parser (3) employs an arm port x-M4 processor.
6. The nonpolar road traffic signal countdown display device according to claim 1, wherein the countdown display screen (4) adopts 8-segment nixie tubes for display.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921586961.XU CN209895500U (en) | 2019-09-24 | 2019-09-24 | Non-polar road traffic signal countdown display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921586961.XU CN209895500U (en) | 2019-09-24 | 2019-09-24 | Non-polar road traffic signal countdown display device |
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| CN209895500U true CN209895500U (en) | 2020-01-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113836063A (en) * | 2020-06-24 | 2021-12-24 | 鸣志电器(太仓)有限公司 | RS-485 signal line polarity self-adaptation realization device based on double UARTs |
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2019
- 2019-09-24 CN CN201921586961.XU patent/CN209895500U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113836063A (en) * | 2020-06-24 | 2021-12-24 | 鸣志电器(太仓)有限公司 | RS-485 signal line polarity self-adaptation realization device based on double UARTs |
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