CN208126649U - road traffic signal control system - Google Patents
road traffic signal control system Download PDFInfo
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- CN208126649U CN208126649U CN201820415035.5U CN201820415035U CN208126649U CN 208126649 U CN208126649 U CN 208126649U CN 201820415035 U CN201820415035 U CN 201820415035U CN 208126649 U CN208126649 U CN 208126649U
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- traffic signal
- control system
- signal lamp
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Abstract
The utility model relates to road traffic signal control systems, specially road traffic signal control system, it further include the control module of the detection circuit detected to the supply voltage of signal lamp, the switching circuit of working condition for switching driving plate and independent yellow lightning road and the output control switching circuit work according to detection circuit its key points of the technical solution are that including for the driving plate of driving signal lamp work and for providing the independent yellow lightning road of independent yellow glitch；Detection circuit detects the supply voltage of signal lamp, and it exports into control module, when the supply voltage of signal lamp occurs abnormal, control module controls switching circuit work, stop the driving that driving plate works to signal lamp, and switch to the state of independent yellow lightning road work, provides independent yellow glitch by independent yellow lightning road, it reduces and because supply voltage exception occurs belisha beacon can not work normally, guarantee the normal traffic control at crossing.
Description
Technical field
The utility model relates to road traffic signal control systems, more specifically, it relates to which road traffic signal controls
System.
Background technique
With the development of society, signal controlling machine, signal lamp and electronic police equipment have all been installed in each each crossing in city, by
Development in each city is different, and also different for the infrastructure level at crossing, the power supply at certain suburbs or remote crossing is low
In 200V, some are even lower, have had exceeded the allowed band of national regulation.Since the flash lamp in electronic police system is set
It is standby that very big electric current is needed in charging transient, crossing network voltage but will be dragged down in flashlight charging moment, this kind of crossing just
Consider the operating condition of the traffic signal controlling machine system at entire crossing of the power supply in low-pressure state when.
Some A.C. contactors or some AC relays are had inside original signal controlling machine dodges control in hardware Huang
The switching of power supply is carried out between system and normal phase controlling, the work of A.C. contactor and AC relay must be in nominal operation
In the range of voltage regulation, since voltage is too low or fluctuation is frequent, it will lead to A.C. contactor and AC relay burnt, make
Obtaining intersection signal control machine can not work, and the traffic control at entire crossing is in abnormal conditions.
Utility model content
The purpose of the utility model is to provide road traffic signal control systems, occur in the supply voltage of signal lamp abnormal
When, it is switched to independent yellow lightning road work, guarantees the normal traffic control at crossing.
The above-mentioned technical purpose of the utility model technical scheme is that：Road traffic signal control
System is also wrapped including the driving plate to work for driving signal lamp and for providing the independent yellow lightning road of independent yellow glitch
Include detection circuit, the working condition for switching driving plate and independent yellow lightning road detected to the supply voltage of signal lamp
Switching circuit and according to detection circuit output control switching circuit work control module.
By using above-mentioned technical proposal, detection circuit detects the supply voltage of signal lamp, and exports to control
In module, when the supply voltage of signal lamp occurs abnormal, control module controls switching circuit work, stops driving plate to signal
The driving of lamp work, and the state of independent yellow lightning road work is switched to, independent yellow glitch is provided by independent yellow lightning road, is subtracted
It is few because supply voltage exception occurs belisha beacon to can not work normally, guarantee the normal traffic control at crossing.
Preferably, the control module is single-chip microcontroller.
By using above-mentioned technical proposal, single-chip microcontroller is applied widely, and application foundation is good, is conducive to save the cost.
Preferably, the switching circuit includes photoelectrical coupler and relay, and the transmitting terminal of photoelectrical coupler is coupled to control
Molding block, the receiving end of photoelectrical coupler are connected to the coil of relay, and a normally-closed contact of relay is connected to driving plate,
One normally opened contact of relay is connected to independent yellow lightning road.
By using above-mentioned technical proposal, when the supply voltage of signal lamp occurs abnormal, control module is to photoelectric coupling
The transmitting terminal output control signal of device, is connected the receiving end of photoelectrical coupler, is connected to the power circuit of the coil of relay, after
The normally-closed contact of electric appliance movement, relay disconnects, and stops the driving that driving plate works to signal lamp, and the normally opened contact of relay closes
It closes, provides independent yellow glitch by independent yellow lightning road.
Preferably, the relay is the time relay, and the normally opened contact of the time relay is that delay disconnects normally opened contact,
The normally-closed contact of the time relay is timing closing normally opened contact.
By using above-mentioned technical proposal, the supply voltage of signal lamp is of short duration restore normal when, control module stop to
The transmitting terminal output control signal of photoelectrical coupler, the coil losing electricity of the time relay, the time relay just restores after being delayed
Original state and the state for being converted to signal lamp work are reduced because the supply voltage of signal lamp is that of short duration recovery makes due to normal
The case where signal lamp is resumed work too early or frequent switching working condition, and crossing traffic pressure is caused to increase.
Preferably, the coils from parallel connection of coils of the relay has LED failure indicator light.
By using above-mentioned technical proposal, when the supply voltage of signal lamp occurs abnormal, coil and the LED event of relay
Hinder indicator light to be powered, LED failure indicator light issues light and reminded, to note abnormalities in time.
Preferably, the coil reverse parallel connection of the relay has freewheeling diode.
By using above-mentioned technical proposal, afterflow channel is provided for the coil of relay, extends the service life of relay.
Preferably, the receiving end of the photoelectrical coupler is parallel with manual switch.
By using above-mentioned technical proposal, needing that the state that signal lamp works is switched to independent yellow lightning road work manually
When the state of work, it is closed manual switch, can be switched to the state of independent yellow lightning road work.
Preferably, the control module is connected with the communication module for communicating with extraneous terminal.
By using above-mentioned technical proposal, when the supply voltage of signal lamp occurs abnormal, control module control communication mould
Block is communicated with extraneous terminal, is reminded the staff of responsible extraneous terminal, to debug in time.
In conclusion the utility model has the advantages that：
1, when the supply voltage of signal lamp occurs abnormal, the state that signal lamp works is switched into independent yellow lightning road work
The state of work provides independent yellow glitch by independent yellow lightning road；
2, when the of short duration recovery of the supply voltage of signal lamp is normal, relay just restPoses and converts after being delayed
For the state of signal lamp work, reduction signal lamp is resumed work too early or frequent switching working condition, causes crossing traffic pressure
The case where increase；
3, when the supply voltage of signal lamp occurs abnormal, communication module mentions the staff of responsible extraneous terminal
It wakes up.
Detailed description of the invention
Fig. 1 is the functional block diagram of the present embodiment；
Fig. 2 is the circuit diagram of switching circuit in the present embodiment.
Detailed description of the invention：1, driving plate；2, independent yellow lightning road；3, detection circuit；4, control module；5, photoelectrical coupler；
6, the time relay；7, LED failure indicator light；8, freewheeling diode；9, manual switch；10, communication module.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Following specific embodiments are only the explanation to the utility model, are not limitations of the present invention, this
Field technical staff can according to need the modification that not creative contribution is made to the present embodiment after reading this specification,
But as long as all by the protection of Patent Law in the scope of the claims of following utility model.
Road traffic signal control system, as shown in Figure 1, including for the driving plate 1 of driving signal lamp work, for mentioning
Independent yellow lightning road 2 for independent yellow glitch and to the detection circuit 3 that the supply voltage of signal lamp is detected, detection circuit
3 output end and the input terminal of a control module 4 are electrically connected, and control module 4 is single-chip microcontroller.
One output end of control module 4 is electrically connected with communication module 10, occurs in the supply voltage of signal lamp abnormal
When, control module 4 controls communication module 10 according to the output of detection circuit 3 and is communicated with extraneous terminal, to the responsible external world
The staff of terminal reminds, and to debug in time, extraneous terminal can be mobile phone or tablet computer, facilitates work people
Member carries.
One output end of control module 4 is electrically connected with switching circuit, and switching circuit is distinguished according to the output of control module 4
The working condition of driving plate 1 and independent yellow lightning road 2 is switched over.
As shown in Fig. 2, switching circuit includes photoelectrical coupler 5 and relay, wherein relay is the time of power cut off delay
Relay 6, a timing closing normally-closed contact K1-1 of the time relay 6 are connected to the power circuit of driving plate 1, time relay
One delay of device 6 disconnects the power circuit that normally opened contact K1-2 is connected to independent yellow lightning road 2.
The output end of control module 4 and the transmitting terminal of photoelectrical coupler 5, the coil K1 of the time relay 6 are connected to power supply
Between VCC and the receiving end of photoelectrical coupler 5, when the supply voltage of signal lamp occurs abnormal, control module 4 is according to detection electricity
The output on road 3 exports high level signal to the transmitting terminal of photoelectrical coupler 5, and the receiving end of photoelectrical coupler 5 is connected, makes the time
The coil K1 of relay 6 is powered, the actuating of relay.
The coil K1 of the time relay 6, which is seen, is parallel with LED failure indicator light 7, and the coil reverse parallel connection of relay has afterflow
Diode 8 provides afterflow channel for the coil of relay, extends the service life of relay, goes out in the supply voltage of signal lamp
When now abnormal, the coil K1 and LED failure indicator light 7 of the time relay 6 are powered, and LED failure indicator light 7 issues light and mentioned
It wakes up, to note abnormalities in time.
The receiving end of photoelectrical coupler 5 is parallel with manual switch 9.
Specific work process：When the supply voltage of signal lamp occurs abnormal, transmitting of the control module 4 to photoelectrical coupler 5
End output control signal, is connected the receiving end of photoelectrical coupler 5, the power circuit of the coil of Lifetime relay 6, the time
Relay 6 acts, and the timing closing normally-closed contact K1-1 of the time relay 6 is disconnected, and stops the drive that driving plate 1 works to signal lamp
Dynamic, the delay of the time relay 6 disconnects normally opened contact K1-2 closure, provides independent yellow glitch by independent yellow lightning road 2, reduces
Because supply voltage exception occurs belisha beacon can not work normally, guarantees the normal traffic control at crossing.
When the of short duration recovery of the supply voltage of signal lamp is normal, the receiving end of photoelectrical coupler 5 is disconnected, the time relay 6
Coil K1 power loss, through the time relay 6 delay after the time relay 6 just restPose and be converted to signal lamp work
The case where state, reduction signal lamp is resumed work too early or frequent switching working condition, and crossing traffic pressure is caused to increase.
When the supply voltage of signal lamp occurs abnormal, communication module 10 mentions the staff of responsible extraneous terminal
It wakes up.
When needing that the state that signal lamp works is switched to the state that independent yellow lightning road 2 works manually, closure is manual
Switch switch 9, can be switched to the state of independent 2 work of yellow lightning road.
Claims (8)
1. road traffic signal control system, including the driving plate (1) to work for driving signal lamp and for providing independent Huang
The independent yellow lightning road (2) of glitch, it is characterized in that：It further include the detection circuit detected to the supply voltage of signal lamp
(3), for switching the switching circuit of the working condition of driving plate (1) and independent yellow lightning road (2) and according to detection circuit (3)
The control module (4) of output control switching circuit work.
2. road traffic signal control system according to claim 1, it is characterized in that：The control module (4) is monolithic
Machine.
3. road traffic signal control system according to claim 1, it is characterized in that：The switching circuit includes photoelectricity coupling
Clutch (5) and relay, the transmitting terminal of photoelectrical coupler (5) are coupled to control module (4), the receiving end of photoelectrical coupler (5)
It is connected to the coil of relay, a normally-closed contact of relay is connected to driving plate (1), and a normally opened contact of relay connects
It is connected to independent yellow lightning road (2).
4. road traffic signal control system according to claim 3, it is characterized in that：The relay is the time relay
(6), the normally opened contact of the time relay (6) is that delay disconnects normally opened contact, and the normally-closed contact of the time relay (6) is that delay is closed
Close normally opened contact.
5. road traffic signal control system according to claim 3, it is characterized in that：The coils from parallel connection of coils of the relay has
LED failure indicator light (7).
6. road traffic signal control system according to claim 5, it is characterized in that：The coil of the relay is reversely simultaneously
It is associated with freewheeling diode (8).
7. road traffic signal control system according to claim 3, it is characterized in that：Photoelectrical coupler (5) connect
Receiving end is parallel with manual switch (9).
8. road traffic signal control system according to claim 1, it is characterized in that：The control module (4) is connected with
Communication module (10) for being communicated with extraneous terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820415035.5U CN208126649U (en) | 2018-03-26 | 2018-03-26 | road traffic signal control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820415035.5U CN208126649U (en) | 2018-03-26 | 2018-03-26 | road traffic signal control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208126649U true CN208126649U (en) | 2018-11-20 |
Family
ID=64198576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820415035.5U Active CN208126649U (en) | 2018-03-26 | 2018-03-26 | road traffic signal control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208126649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114495555A (en) * | 2020-11-12 | 2022-05-13 | 深圳市法马新智能设备有限公司 | Automatic correction device of traffic signal lamp and traffic signal lamp system |
-
2018
- 2018-03-26 CN CN201820415035.5U patent/CN208126649U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114495555A (en) * | 2020-11-12 | 2022-05-13 | 深圳市法马新智能设备有限公司 | Automatic correction device of traffic signal lamp and traffic signal lamp system |
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