CN209297508U - Traffic signalization break monitoring device based on plc communication - Google Patents
Traffic signalization break monitoring device based on plc communication Download PDFInfo
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- CN209297508U CN209297508U CN201822125744.2U CN201822125744U CN209297508U CN 209297508 U CN209297508 U CN 209297508U CN 201822125744 U CN201822125744 U CN 201822125744U CN 209297508 U CN209297508 U CN 209297508U
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Abstract
The utility model discloses a kind of traffic signalization break monitoring device based on plc communication, it include the semaphore PLC main module being set in signal cabinet and multiple control modules, multiple signal lamp PLC modules connected respectively with corresponding control module, multiple control modules are connected by the green AC power control line of corresponding reddish yellow with corresponding signal lamp group respectively, and signal lamp PLC module is connected on the green AC power control line of reddish yellow of corresponding signal lamp group.The utility model is directed to the disconnection fault of signal lamp group, transmits feedback signal using power-line carrier communication, realizes judging automatically, position in time and reporting to semaphore control switch state and disconnection fault, improves the intelligent level of equipment fault investigation.
Description
Technical field
The utility model relates to traffic lights to monitor field, specifically a kind of traffic signalization based on plc communication
Break monitoring device.
Background technique
The traffic lights of present road intersection are all made of the central controlled mode of semaphore and run, and there are several hundred rice in centre
Line not only result in intersection if occurring the disconnection faults caused by reasons such as insect bite, construction damage among line
The control of signal lamp is failed, and the maintenance investigation of failure is also very inconvenient；Currently to such problem generally by semaphore and letter
When signal lamp end there are personnel, testability investigation is carried out, human and material resources, time loss are larger.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of traffic signalization break monitoring based on plc communication
Device realizes judging automatically, position in time and reporting to semaphore control switch state and disconnection fault, improves equipment fault
The intelligent level of investigation.
The technical solution of the utility model are as follows:
Traffic signalization break monitoring device based on plc communication, includes the semaphore being set in signal cabinet
PLC main module and multiple control modules, multiple signal lamp PLC modules connected respectively with corresponding control module, described is more
A control module is connected by the green AC power control line of corresponding reddish yellow with corresponding signal lamp group respectively, the signal lamp
PLC module is connected on the green AC power control line of reddish yellow of corresponding signal lamp group；
The semaphore PLC main module include core board, the first plc communication chip, USB turn CAN chip, first every
From transformer and the first safety capacitor, serial line interface, the USB of the first plc communication chip turn the USB interface of CAN chip
It is connect with core board, the power line carrier interface of the first plc communication chip passes sequentially through the first isolating transformer, the first safety
It is connect after capacitor with AC power cord, the first safety capacitance series are in the zero curve and AC power cord of the first isolating transformer
Between zero curve;
Multiple control modules include microcontroller, switching circuit and voltage detecting circuit, and described is multiple
The microcontroller of control module passes through CAN bus and connect with the semaphore PLC main module USB CAN interface for turning CAN chip, institute
The switching circuit stated includes red light switch, amber light switch and green light switch, the control of red light switch, amber light switch and green light switch
End processed is connect with microcontroller, and one end of one end of red light switch, one end of amber light switch and green light switch is and alternating current
The firewire of source line connects, and the other end of red light switch is connect with the red light firewire of the green AC power control line of reddish yellow, amber light switch
The other end connect with the amber light firewire of the green AC power control line of reddish yellow, green light switch the other end and the green AC power of reddish yellow
The green light firewire of control line connects, and the zero curve of the zero curve and the green AC power control line of reddish yellow of AC power cord is correspondingly connected with, electricity
Pressing detection circuit includes there are three photoelectrical coupler, and the input terminal of three photoelectrical couplers is switched with the red light of switching circuit respectively
The other end, amber light switch the other end, green light switch the other end connect one to one, the output end of three photoelectrical couplers
It is connect with microcontroller；
The signal lamp PLC module includes the second PLC chip, three the second isolating transformers and the second safety electricity
Hold, the input winding of three the second isolating transformers is connect with the power line carrier interface of the second PLC chip, and the second isolation becomes
The firewire of depressor output winding is connect with the firewire of the green AC power control line of reddish yellow, and the second safety capacitance series are in the second isolation
Transformer exports between the zero curve of winding and the zero curve of the green AC power control line of reddish yellow.
The core board is 700MHz double-core ARM core board.
The first plc communication chip and the second plc communication chip is power line carrier communication chip.
First isolating transformer and the second isolating transformer selects the isolating transformer core of model T60403
Piece.
The USB turns the usb bus interface chip that CAN chip selects model CH372.
The microcontroller selects STM32 chip；Red light switch, amber light switch and the green light of the switching circuit are opened
Guan Jun selects the ac thyristor switch of model BTA312.
The advantages of the utility model:
The utility model is directed to the disconnection fault of signal lamp group, transmits feedback signal using power-line carrier communication,
When the feedback signal that can not receive corresponding signal lamp group in setting time and reference time delay, that is, show that corresponding signal lamp group goes out
Existing failure, quickly reminds staff to overhaul, and the voltage detecting knot of control module acquisition can be corresponded to according to signal lamp group
Fruit, determines whether switching circuit breaks down, and such as switching circuit fault-free, can be determined as that open circuit fault occurs in control loop,
It realizes the purpose for quickly determining fault point and overhauling in time, solves semaphore control switch state and line disconnection failure can not
Discovery in time checks the difficult problem of positioning, improves the intelligent level of safety and its fault detection of traffic signalization.
Detailed description of the invention
Fig. 1 is the structural block diagram of the utility model;
Fig. 2 is the structural block diagram of the utility model semaphore PLC main module;
Fig. 3 is the structural block diagram of the utility model control module;
Fig. 4 is the structural block diagram of the utility model signal lamp PLC module.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
See Fig. 1, the traffic signalization break monitoring device based on plc communication, includes to be set in signal cabinet
Semaphore PLC main module 1 and multiple control modules 2, multiple signal lamp PLC modules connected respectively with corresponding control module 2
3, multiple control modules 2 respectively by the green AC power control line (L_R1, L_Y1, L_G1 and N) of corresponding reddish yellow with it is corresponding
The connection of signal lamp group, signal lamp PLC module 3 are connected on the green AC power control line of reddish yellow of corresponding signal lamp group；
See Fig. 2, semaphore PLC main module 1 includes that core board 11, the first plc communication chip 12, USB turn CAN chip
13, the first isolating transformer 14 and the first safety capacitor 15, serial line interface, the USB of the first plc communication chip 12 turn CAN chip
13 USB interface is connect with core board 11, and the power line carrier interface of the first plc communication chip 12 passes sequentially through the first isolation
It is connect after transformer 14, the first safety capacitor 15 with AC power cord (L and N), the first safety capacitor 15 is serially connected with the first isolation
Between the zero curve of transformer 14 and the zero curve L of AC power cord;
See Fig. 3, multiple control modules 2 include microcontroller 21, switching circuit 22 and voltage detecting circuit 23, multiple
The microcontroller 21 of control module is connected by the CAN interface that CAN bus and semaphore PLC main module USB turn CAN chip 13
It connects, switching circuit 21 includes red light switch S_R1, amber light switch S_Y1 and green light switch S_G1, red light switch S_R1, amber light
The control terminal of switch S_Y1 and green light switch S_G1 are connect with microcontroller, one end of red light switch S_R1, amber light switch S_
One end of Y1 and one end of green light switch S_G1 are connect with the firewire L_R1 of AC power cord, the other end of red light switch S_R1
It is connect with the red light firewire of the green AC power control line of reddish yellow, the green AC power of the other end and reddish yellow of amber light switch S_Y1 controls
The amber light firewire L_Y1 connection of line, the other end of green light switch S_G1 and the green light firewire L_G1 of the green AC power control line of reddish yellow
Connection, the zero curve N and the zero curve N of the green AC power control line of reddish yellow of AC power cord are correspondingly connected with, and voltage detecting circuit 23 wraps
It includes there are three photoelectrical coupler, input terminal V_R, V_Y and V_G of three photoelectrical couplers are switched with the red light of switching circuit respectively
The other end of S_R1, the other end of amber light switch S_Y1, green light switch S_G1 the other end connect one to one, three photoelectricity couplings
The output end of clutch is connect with microcontroller；
See Fig. 4, signal lamp PLC module 3 include the second PLC chip 31, three second isolating transformers Sr1, Sy1 and
Sg1, the second safety capacitor Cryg, the input winding of three second isolating transformers Sr1, Sy1 and Sg1 with the second PLC chip
31 power line carrier interface connection, the second isolating transformer export the firewire of winding and the fire of the green AC power control line of reddish yellow
Line (L_R1, L_Y1, L_G1) connection, the second safety capacitor Cryg are serially connected with the second isolating transformer output zero curve of winding and red
Between the zero curve N of yellowish green AC power control line.
Core board 11 is 700MHz double-core ARM core board；First plc communication chip 12 and the second plc communication chip 31 are
For power line carrier communication chip；First isolating transformer 14 and second isolating transformer Sr1, Sy1 and Sg1 select model
The isolating transformer chip of T60403；USB turns the usb bus interface chip that CAN chip 13 selects model CH372；Microcontroller
Device 21 selects STM32 chip；Red light switch S_R1, the amber light switch S_Y1 and green light switch S_G1 of switching circuit select model
It is switched for the ac thyristor of BTA312.
Traffic signalization break monitoring method based on plc communication, has specifically included following steps:
(1), the second PLC chip 31 of each signal lamp PLC module passes through corresponding three the second isolating transformers
Sr1, Sy1, Sg1 and the second safety capacitor Cryg regularly send feedback information and give reddish yellow green AC power control line (L_R1, L_
Y1, L_G1 and N)；
(2), feedback information is sent to corresponding control module 2 by the green AC power control line of reddish yellow, and feedback information is again
Be sent to AC power cord (L and N) by the switching circuit 22 of control module 2, then feedback information through AC power cord (L and
N it) is conveyed to the first isolating transformer 14 and the first safety capacitor 15 of semaphore PLC main module 1, finally successively passes through signal again
Core board is transferred to after the first plc communication chip 12 conversion of machine PLC main module；
(3), three photoelectrical couplers of 2 voltage detecting circuit 23 of control module by voltage detecting fructufy when be sent to pair
Voltage detecting result is then forwarded to the core of semaphore PLC main module by CAN bus by the microcontroller 21 answered, microcontroller 21
Core 11；
(4), control instruction, signal lamp group feedback signal of the core board 11 of semaphore PLC main module according to setting transmission
Reception condition and corresponding voltage detecting result judge trip point: within the scope of the timing point and delay time in setting, letter
The core board 11 of number machine PLC main module can not receive the feedback information of the transmission of signal lamp PLC module 3, and current slot is set
Certain fixed all the way signal lamp (red light, amber light or green light) control instruction be light, i.e., judgement the green AC power control line of reddish yellow this
The control loop of signal lamp (red light, amber light or green light) or corresponding signal lamp switch (red light switch S_R1, amber light switch S_Y1
Or green light switch S_G1) there is breaking situation.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. the traffic signalization break monitoring device based on plc communication, it is characterised in that: include to be set in signal cabinet
Semaphore PLC main module and multiple control modules, it is multiple respectively with corresponding control module connection signal lamp PLC module,
Multiple control modules are connected by the green AC power control line of corresponding reddish yellow with corresponding signal lamp group respectively, described
Signal lamp PLC module be connected on the green AC power control line of reddish yellow of corresponding signal lamp group；
The semaphore PLC main module includes core board, the first plc communication chip, USB turns CAN chip, the first isolation becomes
Depressor and the first safety capacitor, serial line interface, the USB of the first plc communication chip turn the USB interface of CAN chip with
Core board connection, the power line carrier interface of the first plc communication chip pass sequentially through the first isolating transformer, the first safety capacitor
It is connect afterwards with AC power cord, the first safety capacitance series are in the zero curve of the first isolating transformer and the zero curve of AC power cord
Between;
Multiple control modules include microcontroller, switching circuit and voltage detecting circuit, multiple controls
The microcontroller of module passes through CAN bus and connect with the semaphore PLC main module USB CAN interface for turning CAN chip, described
Switching circuit includes red light switch, amber light switch and green light switch, the control terminal of red light switch, amber light switch and green light switch
It is connect with microcontroller, one end of one end of red light switch, one end of amber light switch and green light switch is and AC power cord
Firewire connection, red light switch the other end connect with the red light firewire of the green AC power control line of reddish yellow, amber light switch it is another
One end is connect with the amber light firewire of the green AC power control line of reddish yellow, and the other end and the green AC power of reddish yellow of green light switch control
The green light firewire of line connects, and the zero curve of the zero curve and the green AC power control line of reddish yellow of AC power cord is correspondingly connected with, voltage inspection
Slowdown monitoring circuit includes there are three photoelectrical coupler, and the input terminal of three photoelectrical couplers is another with the red light of switching circuit switch respectively
One end, amber light switch the other end, green light switch the other end connect one to one, the output end of three photoelectrical couplers with
Microcontroller connection；
The signal lamp PLC module includes the second PLC chip, three the second isolating transformers and the second safety capacitor, and three
The input winding of a second isolating transformer is connect with the power line carrier interface of the second PLC chip, the second isolating transformer
The firewire of output winding is connect with the firewire of the green AC power control line of reddish yellow, and transformation is isolated in second in the second safety capacitance series
Device exports between the zero curve of winding and the zero curve of the green AC power control line of reddish yellow.
2. the traffic signalization break monitoring device according to claim 1 based on plc communication, it is characterised in that: institute
The core board stated is 700MHz double-core ARM core board.
3. the traffic signalization break monitoring device according to claim 1 based on plc communication, it is characterised in that: institute
The the first plc communication chip and the second plc communication chip stated are power line carrier communication chip.
4. the traffic signalization break monitoring device according to claim 1 based on plc communication, it is characterised in that: institute
The first isolating transformer and the second isolating transformer stated select the isolating transformer chip of model T60403.
5. the traffic signalization break monitoring device according to claim 1 based on plc communication, it is characterised in that: institute
The USB stated turns the usb bus interface chip that CAN chip selects model CH372.
6. the traffic signalization break monitoring device according to claim 1 based on plc communication, it is characterised in that: institute
The microcontroller stated selects STM32 chip；Red light switch, amber light switch and the green light switch selection type of the switching circuit
Number for BTA312 ac thyristor switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822125744.2U CN209297508U (en) | 2018-12-18 | 2018-12-18 | Traffic signalization break monitoring device based on plc communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822125744.2U CN209297508U (en) | 2018-12-18 | 2018-12-18 | Traffic signalization break monitoring device based on plc communication |
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| Publication Number | Publication Date |
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| CN209297508U true CN209297508U (en) | 2019-08-23 |
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| CN201822125744.2U Active CN209297508U (en) | 2018-12-18 | 2018-12-18 | Traffic signalization break monitoring device based on plc communication |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109544965A (en) * | 2018-12-18 | 2019-03-29 | 安徽科力信息产业有限责任公司 | Traffic signalization break monitoring device and monitoring method based on plc communication |
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2018
- 2018-12-18 CN CN201822125744.2U patent/CN209297508U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109544965A (en) * | 2018-12-18 | 2019-03-29 | 安徽科力信息产业有限责任公司 | Traffic signalization break monitoring device and monitoring method based on plc communication |
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