CN206236275U - A kind of semaphore supervisory circuit - Google Patents
A kind of semaphore supervisory circuit Download PDFInfo
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- CN206236275U CN206236275U CN201621253505.XU CN201621253505U CN206236275U CN 206236275 U CN206236275 U CN 206236275U CN 201621253505 U CN201621253505 U CN 201621253505U CN 206236275 U CN206236275 U CN 206236275U
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- 238000011897 real-time detection Methods 0.000 claims abstract description 3
- 230000005611 electricity Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 abstract description 10
- 230000007257 malfunction Effects 0.000 abstract description 5
- 210000003205 muscle Anatomy 0.000 description 5
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Abstract
The utility model is related to a kind of semaphore supervisory circuit, the supervisory circuit being connected by CAN including governor circuit and with governor circuit and multiple drive circuits, the governor circuit is used to issue controlling on lamp group instruction, the drive circuit is used to receive the control instruction and drives corresponding red, yellow, and green signal lamp to work, the supervisory circuit is used for real-time detection circuit failure and judges dependent failure, is dodged by the way that drive output signal K1 and K2 individual control signal machine is yellow.The utility model effectively realize the malfunction monitoring of semaphore and it is independent yellow dodge control, without by drive circuit each amber light output-parallel, to supervisory circuit, wiring is simple；, without the related component of exchange control, safe and reliable, application cost is low for supervisory circuit simultaneously.
Description
Technical field
The utility model is related to technical field of traffic signal control, and in particular to a kind of semaphore supervisory circuit.
Background technology
According to the requirement of semaphore relevant criterion, when semaphore cannot normal work when, need that yellow control can be dodged by independent
Semaphore is switched to yellow sudden strain of a muscle state by circuit.Current demand signal machine realizes that the fault detect and the mode for controlling are the independent Huang of design
Control circuit is dodged, such as patent CN202677618U, its controlled output is in parallel with the controlled output of drive circuit, and the control circuit can
Realize to the direct control per amber light all the way, but the Huang dodges control circuit to the direct control of amber light, and high-tension circuit is complicated, is applied to
This is higher, and Huang need to be dodged the Huang that corresponding signal drive circuit is attempted by per amber light controlled output all the way for controlling circuit
In lamp output, wiring is more, and reliability is not high, and the method is when signal lamp group increases and decreases or converts（Pedestrian lamp group such as without amber light
Exchanged with the garage's lamp group for having amber light）, it is impossible to the convenient effective spread for realizing yellow sudden strain of a muscle control function.
Utility model content
The purpose of this utility model is to provide a kind of semaphore supervisory circuit, and the supervisory circuit can be realized to corresponding abnormal
The effective monitoring of state and yellow sudden strain of a muscle the to signal lamp control, and the malfunction monitoring and independent yellow sudden strain of a muscle for solving current demand signal machine control circuit
Application cost is high and tie complicated, the technical problem of the very flexible of spread, realize to semaphore abnormality
More convenient effective monitoring and control.
To achieve the above object, the utility model employs following technical scheme：
A kind of semaphore supervisory circuit, including governor circuit and the supervisory circuit that is connected by CAN with governor circuit
With multiple drive circuits, for issuing controlling on lamp group instruction, the drive circuit is for receiving the control for the governor circuit
Instruct and drive corresponding red, yellow, and green signal lamp to work, the supervisory circuit is used for real-time detection circuit failure and judges correlation
Failure, dodges by the way that drive output signal K1 and K2 individual control signal machine is yellow.
The supervisory circuit includes decoder J1 and door F1 and door F2, decoder Q1 and OR gate F3, the decoder J1
Input be connected with the first master chip and telecommunication circuit, the output DO ends of decoder J1 are connected with the input A ends with door F1, translate
The output D3 ends of code device J1 are connected with the input B ends of OR gate F3, the input A ends and the output D0 ends of decoder J1 with door F2
It is connected, is connected with the second master chip and telecommunication circuit with the input B ends of door F1 and with the input B ends of door F2, the output with door F1
End is connected with the input SA ends of decoder Q1, is connected with the output end of door F2 with the input SB ends of decoder Q1, decoder Q1's
Output D3 ends are connected with the input A ends of OR gate F3, and the output D3 ends of decoder J1 are connected with the input B ends of OR gate F3, described to translate
The output D1 termination red light drive signals of code device Q1, its output D2 termination green light drive signals, the output termination of the OR gate F3
Amber light drive signal.
The decoder J1 and decoder Q1 are from two or four decoders of model 74HC139.
The OR gate F3 uses the chip of model SN74LVC1G32.
It is described with door F1 and with door F2 from model SN74LVC2G08 chip.
The master chip controls circuit from STM32.
As shown from the above technical solution, the utility model is connected by the CAN of supervisory circuit and drive circuit, is realized
Effective monitoring to signal trouble.By level bus and drive circuit, supervisory circuit is realized by IO level signals
Control is dodged to the independent yellow of signal lamp.Monitor in real time and effectively control by supervisory circuit, the safety for realizing semaphore can
By operation.By the connection of level signal line, the yellow sudden strain of a muscle of failure for effectively realizing semaphore controls.The circuit can be realized to driving
The spread of circuit, without the output of each amber light is connected individually into supervisory circuit, wiring is simple；Simultaneously supervisory circuit also without
The related component of control need to be exchanged, safe and reliable, application cost is low.
Brief description of the drawings
Fig. 1 is circuit block diagram of the present utility model；
Fig. 2 is circuit diagram of the present utility model.
Specific embodiment
The utility model is described further below in conjunction with the accompanying drawings：
As shown in figure 1, the semaphore supervisory circuit of the present embodiment, including governor circuit 1, supervisory circuit 2 and multiple drivings
Circuit 3, the governor circuit 1 and supervisory circuit 2 and multiple drive circuits 3 share the interaction that one group of CAN enters row information, main
Control circuit 1 issues controlling on lamp group instruction, and drive circuit 3 receives this and instructs and drive corresponding reddish yellow green signal light.When appearance is believed
Number cisco unity malfunction of machine governor circuit 1, or the master chip of drive circuit 3 is when the failure such as can not normally control, monitoring electricity
Road 2 is by CAN real-time monitoring and judges dependent failure, yellow by drive output signal K1 and K2 individual control signal machine
Dodge.
As shown in Fig. 2 the supervisory circuit 2 includes decoder J1, the drive circuit 3 includes and door F1 and door F2, decoder
The input of Q1 and OR gate F3, decoder J1 is connected with master chip and telecommunication circuit, the output DO ends of decoder J1 with door F1
Input A ends be connected, the output D3 ends of decoder J1 are connected with the input B ends of OR gate F3, with the input A ends of door F2 and decoder
The output D0 ends of J1 are connected, and are connected with master chip and telecommunication circuit with the input B ends of door F1 and with the input B ends of door F2, with door
The output end of F1 is connected with the input SA ends of decoder Q1, is connected with the output end of door F2 with the input SB ends of decoder Q1, translates
The output D3 ends of code device Q1 are connected with the input A ends of OR gate F3, the output D3 ends of decoder J1 and the input B ends phase of OR gate F3
Even, the output D1 termination red light drive signals of decoder Q1, its output D2 termination green light drive signals, the output termination of OR gate F3
Amber light drive signal.The output D0 ends of decoder J1 are output control signal K1 ends, and the output D3 ends of decoder J1 are output control
Signal K2 ends processed.
Its Huang dodges control circuit and exports 2 control signals by two I/O pins of master chip U1, by the D0 of decoder J1
2 are drawn with D3 and drive output, and be respectively connecting to K1 and K2 controlling bus.Because decoder has output high level unique
Feature, this controls circuit to can ensure that 2 of supervisory circuit 2 drive when exporting different as high level, it is ensured that control reliability；Simultaneously
Because its driving force is stronger so that the more stable reliability of level signal of controlling bus K1/K2.
Drive circuit 3 receives the operation of the lamp group operating instruction and control signal lamp of governor circuit 1 by CAN.Its
The controlling on lamp group output of master chip is connected with each other with 2 drive levels output of supervisory circuit 2.The master chip of drive circuit 3 will
Two IO the control signals IO_3 and IO_4 of its own respectively with supervisory circuit 2 export K1 be connected in parallel to door F1 and with door F2,
When K1 is high level, just high level signal can be exported in IO_4 and IO_4 high level with door F1 and with door F2.By decoding
Device Q1 can ensure that only one of which is output as effective high level signal simultaneously at its output D1, D2, D3 end.Translating in drive circuit 3
D3 outputs and the K2 drive signals of supervisory circuit 2 of code device Q1 are connected in parallel to OR gate F3, and are output as amber light control signal, realize driving
Move the independent control of circuit 3 and supervisory circuit 2 to amber light.
During work, normally run when supervisory circuit 2 detects semaphore, output IO_1 is low level (0), IO_2 is low electricity
Flat (0), by exporting K1 high level (1), K2 low levels (0) after decoder J1.Because K2 is low level (0), OR gate F3 is only received
The output D3 ends control of decoder Q1, i.e., D3 ends can directly control steady yellow.Now only received with door F1 and with the output of door F2
IO_3 and the IO_4 control of drive circuit 3, the master chip of drive circuit 3 is corresponding low-high by exporting IO_3 and IO_4
(01) or height-low (10) or Gao-height (11) signal, D1 or D2 or the D3 end of output decoder Q1 are high level (1), control respectively
Red light, green light and amber light are lighted or extinguished.
When supervisory circuit 2 detects semaphore works abnormal, IO_1 high level (1) is exported so that output K1 is low
Level (0), D1/D2/D3 is low level (0).The master chip of supervisory circuit 2 is by exporting IO_2 for high level (1) or low electricity
Flat (0), K2 is high level (1) or low level (0), can independently realize that it is output as high level (1) and low level by OR gate F3
(0) lighting or extinguishing for amber light, is realized, i.e. flash of light control.
In the present embodiment, the master chip of supervisory circuit 2 and drive circuit 3 controls circuit from STM32, possesses CAN letters
Number output and IO level input/output functions.It is capable of achieving effective connection of CAN and effective output control of level signal.
Each drive circuit 3 can drive four groups of reddish yellow green signal lights, and a crossroad for standard need to connect four pieces of drive circuits 3 altogether.
To realize the unification of device, the decoder of supervisory circuit 2 and drive circuit 3 is decoded from two or four in the present embodiment
Device 74HC139, is capable of achieving two-way IO inputs, the function of four tunnel level signal outputs.Supervisory circuit 2 only need to all the way be translated with therein
Code device function.Each drive circuit 3 is exported by four groups of signal lamp groups, needs 2 74HC139 chips.OR gate F3 is used
SN74LVC1G32 chips, be capable of achieving 2 input signals or logic function output control.With door F1 and F2 using 2 tunnels and door core
Piece SN74LVC2G08, is capable of achieving being controlled with logic function input and output for two paths of signals.
There is once the running status of itself in governor circuit 1 and each drive circuit 3 each second, if running status is not just
Often（Such as system maintenance）Or continuous three seconds without certain board state（As master chip is damaged or communication failure）, supervisory circuit 2
Then can determine whether to be semaphore cisco unity malfunction, now supervisory circuit 2 can independently execute the flash of light control to amber light；Such as all electricity
Continuous 5 seconds equal normal operations of road plate, and allow to recover, then can be sent from CAN and recover instruction, make semaphore recover to perform just
Normal signal lamp operating scheme, and recover drive level output K1 and K2 be respectively normal high level and low level signal.
When semaphore cannot normal work when, the supervising device can be realized to the effective monitoring of corresponding abnormality and to letter
Control is dodged in the yellow of signal lamp.The application cost that the malfunction monitoring and independent Huang for solving current demand signal machine dodge control device is high and couples
Line is complicated, the technical problem of the very flexible of spread, realize to more convenient effective monitoring of semaphore abnormality and
Control.
Embodiment described above is only that preferred embodiment of the present utility model is described, not to this practicality
New scope is defined, and on the premise of the utility model design spirit is not departed from, those of ordinary skill in the art are to this
Various modifications and improvement that the technical scheme of utility model is made, all should fall into the protection of the utility model claims determination
In the range of.
Claims (6)
1. a kind of semaphore supervisory circuit, it is characterised in that：It is connected by CAN including governor circuit and with governor circuit
Supervisory circuit and multiple drive circuits, the governor circuit are used to issue controlling on lamp group instruction, and the drive circuit is used to receive
The control instruction simultaneously drives corresponding red, yellow, and green signal lamp to work, and the supervisory circuit is used for real-time detection circuit failure simultaneously
Judge dependent failure, dodged by the way that drive output signal K1 and K2 individual control signal machine is yellow.
2. semaphore supervisory circuit according to claim 1, it is characterised in that：The supervisory circuit include decoder J1,
With door F1 and door F2, decoder Q1 and the input and the first master chip and telecommunication circuit phase of OR gate F3, the decoder J1
Even, the output DO ends of decoder J1 are connected with the input A ends with door F1, the output D3 ends of decoder J1 and the input B of OR gate F3
End is connected, described to be connected with the input A ends of door F2 with the output D0 ends of decoder J1, with the input B ends of door F1 and with door F2's
Input B ends are connected with the second master chip and telecommunication circuit, are connected with the output end of door F1 with the input SA ends of decoder Q1, with door
The output end of F2 is connected with the input SB ends of decoder Q1, and the output D3 ends of decoder Q1 are connected with the input A ends of OR gate F3, translate
The output D3 ends of code device J1 are connected with the input B ends of OR gate F3, the output D1 termination red light drive signals of the decoder Q1, its
Output D2 termination green light drive signals, the output termination amber light drive signal of the OR gate F3.
3. semaphore supervisory circuit according to claim 2, it is characterised in that：The decoder J1 and decoder Q1 are selected
With two or four decoders of model 74HC139.
4. semaphore supervisory circuit according to claim 2, it is characterised in that：The OR gate F3 uses model
The chip of SN74LVC1G32.
5. semaphore supervisory circuit according to claim 2, it is characterised in that：It is described with door F1 and to select model with door F2
It is the chip of SN74LVC2G08.
6. semaphore supervisory circuit according to claim 2, it is characterised in that：The master chip controls electricity from STM32
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621253505.XU CN206236275U (en) | 2016-11-22 | 2016-11-22 | A kind of semaphore supervisory circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621253505.XU CN206236275U (en) | 2016-11-22 | 2016-11-22 | A kind of semaphore supervisory circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206236275U true CN206236275U (en) | 2017-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621253505.XU Withdrawn - After Issue CN206236275U (en) | 2016-11-22 | 2016-11-22 | A kind of semaphore supervisory circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206236275U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373409A (en) * | 2016-11-22 | 2017-02-01 | 安徽科力信息产业有限责任公司 | Signal machine monitoring circuit |
-
2016
- 2016-11-22 CN CN201621253505.XU patent/CN206236275U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373409A (en) * | 2016-11-22 | 2017-02-01 | 安徽科力信息产业有限责任公司 | Signal machine monitoring circuit |
| CN106373409B (en) * | 2016-11-22 | 2024-02-27 | 安徽科力信息产业有限责任公司 | Monitoring circuit of annunciator |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170609 Effective date of abandoning: 20240227 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170609 Effective date of abandoning: 20240227 |