CN202102600U - Signal-lamp control system capable of regulating display shapes - Google Patents
Signal-lamp control system capable of regulating display shapes Download PDFInfo
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- CN202102600U CN202102600U CN2011202029222U CN201120202922U CN202102600U CN 202102600 U CN202102600 U CN 202102600U CN 2011202029222 U CN2011202029222 U CN 2011202029222U CN 201120202922 U CN201120202922 U CN 201120202922U CN 202102600 U CN202102600 U CN 202102600U
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Abstract
The utility model discloses a signal-lamp control system capable of regulating display shapes, which comprises a central controller, an upper computer, a vehicle-flow detecting module, a display-control module and a signal lamp, wherein the central controller is respectively connected with the upper computer, the vehicle-flow detecting module and the display-control module, the signal lamp is connected with the display-control module, the display-control module comprises a first controllable switch and a second controllable switch, the first controllable switch is connected with a first output terminal of the central controller, and the second controllable switch is connected with a second output terminal of the central controller. In the utility model, the use of a traffic signal lamp can be normalized by controlling the signal lamp to display different shapes at different times, so that the traffic consciousness of traffic participants is enhanced, the complexity of the received information of the traffic participants is lightened, the crossing-passing efficiency is improved, the traffic safety is enhanced, and the cost for arranging traffic-signal equipment is lowered.
Description
Technical field
The utility model relates to a kind of signal lamp control system, the particularly a kind of signal lamp control system that can regulate display shape.
Background technology
The display shape of signal lamp generally has two kinds, and a kind of is arrow lamp, and a kind of is round end lamp (as shown in Figure 1).When arrow lamp showed green, the vehicle of this direction of traffic had the highest right-of-way, the situation that does not exist any vehicle to conflict with it.Receive the vehicle of round end lamp control, when the round end lamp shows when green, P Passable, but do not have the highest right-of-way, the driver should observe about it, should carry out the measure of dodging in advance when running into contingent conflict situations.
And in a lot of cities of China; It is very lack of standardization that signal lamp is provided with, such as, the crossing of a signal controlling; The interflow will take place during through the crossing and conflict in the through vehicles of right-hand rotation vehicle and adjacent entrance driveway; Signal lamp shows that still right-hand rotation direction and craspedodrome direction all are green arrow (as shown in Figure 2), thereby both direction all has the highest right-of-way, and this has obviously increased the dangerous risk of traffic.Therefore, need a kind of signal lamp control system, can be implemented on the same signal lamp and show difformity, thereby realize effective control, reduce the dangerous risk of traffic the crossing traffic.
The utility model content
The utility model purpose: to the problem and shortage of above-mentioned existing existence, the purpose of the utility model provides and a kind ofly can show difform signal lamp control system at different time by the control signal lamp.
Technical scheme: for realizing above-mentioned utility model purpose; The technical scheme that the utility model adopts is a kind of signal lamp control system that can regulate display shape; Comprise central controller, host computer, vehicle Flow Detection module, display control module and signal lamp; Wherein central controller connects host computer, vehicle Flow Detection module and display control module respectively, and said signal lamp connects display control module, and this display control module comprises first gate-controlled switch and second gate-controlled switch; This first gate-controlled switch connects first lead-out terminal of said central controller, and second gate-controlled switch connects second lead-out terminal of said central controller.
Said central controller can be the PLC controller.
Said vehicle Flow Detection module can be the vehicle flow detection system based on pyroelectric infrared sensor.
Said central controller can be provided with display module or also can comprise the display module that connects this central controller.
Said display module can be LED display.
Also can comprise the drive control module that connects display control module and signal lamp.
Beneficial effect: the signal lamp control system that the utility model can be regulated display shape shows difformity through the control signal lamp at different time; But the use of standard traffic lights; Promote the sense of traffic of traffic participant, alleviate the complexity that traffic participant receives information, improve the crossing traffic efficiency; Promote traffic safety, reduce the cost that traffic signals equipment is set.Under following three kinds of situation, use the best results of the utility model: 1. the straightgoing vehicle flow is less, when the adjacent entrance driveway right-hand rotation flow that conflicts with its generation interflow is big; When two corresponding directional flows in the 2. same phase place differ big; 3. flow is not that very big originally turn right motor vehicle and craspedodrome bicycle are when clashing in the crossing.
Description of drawings
Fig. 1 is present signal lamp display shape synoptic diagram;
Fig. 2 keeps straight on for the crossing and right-hand rotation vehicle interflow conflict synoptic diagram;
Fig. 3 is the module frame chart of the utility model embodiment;
Fig. 4 is the circuit theory diagrams of the utility model embodiment;
Fig. 5 shows synoptic diagram (the craspedodrome direction has the highest right-of-way) for the utility model embodiment signal;
Fig. 6 shows synoptic diagram (the right-hand rotation direction has the highest right-of-way) for the utility model embodiment signal;
Fig. 7 is the utility model example I/O operation rule synoptic diagram;
Fig. 8 is the utility model example I/O operation sequential synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment; Further illustrate the utility model; Should understand these embodiment only be used to the utility model is described and be not used in the restriction the utility model scope; After having read the utility model, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the utility model.
The utility model can demonstrate difform colour light signal in different time.The highest current temporary this shows the green arrow lamp to signal lamp when vehicle has, and this phase place is the protectiveness phase place, if with other vehicle have clash maybe, other vehicle should shift to an earlier date initiatively dodges; When vehicle had the right-of-way of restriction, this showed green circular lamp to signal lamp, and this phase place should initiatively be dodged the other side for permission property phase place when still clashing running into the vehicle that right-of-way is arranged.
Embodiment:
Certain crossing is the four phase signal crossings on a plane, and this intersection signal phase place dividing condition is that first phase place is that keep straight in north and south, second phase place is to turn left in north and south, and the third phase position is that thing is kept straight on, and the 4th phase place is that thing turns left.
For the right-hand rotation wagon flow, the method in the clearance of green time later stage is taked in this crossing, when promptly the vehicle flow rate on having the highest right-of-way direction reduces, and clearance right-hand rotation direction vehicle.Such as, when the first phase place green light was opened, the craspedodrome wagon flow of southing mouth had the highest right-of-way and passes through the crossing with saturation volume rate, and the traffic signals on this direction should be represented (as shown in Figure 5), the right-hand rotation Pedestrian Zone At any time of eastern import with the green arrow lamp.After green light was opened back a period of time, the craspedodrome wagon flow of southing mouth was no longer passed through the crossing with saturation volume rate, and the right-hand rotation vehicle of eastern import can be let pass; The conflict of the right-hand rotation automobile storage of the through vehicles of North and South direction and east-west direction at the interflow, at this moment, there is a large amount of queuing vehicles in the right-turn lane of eastern import; They can pass through the crossing with saturation volume rate; And the wagon flow of southing mouth Through Lane can not be passed through with saturation volume rate, and therefore, east-west direction right-hand rotation this moment wagon flow has higher right-of-way; East import right-hand rotation direction can show green arrow lamp, and southing mouth craspedodrome direction should become round end lamp (as shown in Figure 6) by arrow lamp.
As shown in Figure 3, control system can comprise following components:
(1) central controller part: be used to accomplish data processing and instruction control of each interface etc.
(2) man-machine interface part: be used to accomplish current state and show, parameter and program input.
(3) peripheral interface circuit part: the level conversion, signal lamp drive controlling and the presentation control function that are used to accomplish signal.
(4) slave part: this part mainly refers to input to from the outside vehicle flowrate signal and the power unit of central controller.
As shown in Figure 4, the central controller of native system can have multiple choices, and it is central controller that the circuit design among the embodiment is selected the FP-X of Panasonic series of PLC for use, in conjunction with aforementioned traffic control method, designs each configuration circuit and accomplishes the I/O time series analysis.Selected PLC has advantages such as hypervelocity processing, high capacity, extensibility and program security are strong, is highly suitable for widespread use in the complicated traffic system.There is following components in this system:
(1) central controller part: this part is accomplished the data processing and the instruction control of each interface, and is specific as follows:
1. FP-X COM1 communication plug-in unit is mounted to the control module of central controller, expands the RS232 serial line interface of one 1 passage, north and south entrance driveway vehicle flowrate signal is connected to central controller as input signal through this interface.
2. the north and south that will confirm the in advance vehicle flowrate standard value that green arrow lamp and green round end lamp switch institute's foundation of keeping straight on compares through the instruction that writes central controller with the flow value of measuring in real time; Dynamically set the t1 and the value of t2 working time of two phase place, unit is set at second.
3. according to value editor's steering order of t1 and t2, signal Y0, Y1, Y2 and the Y3 state during out of phase, i.e. their high-low level state are respectively exported in control.
Conversion traffic lights display format is meant and realizes that in same traffic lights arrow shows and round end shows in the utility model, and implementation is to realize the conversion of two kinds of signal lamp forms through editor's steering order and design commutation circuit.
(2) man-machine interface part: this part is used for showing current state and parameter and program input.Various states show in real time on the LED display of PLC controller that mainly these states have: the operation of PLC/stop, mistake/alarm condition; The ON/OFF state of input and output (I/O).Parameter goes up the direct realization of RS232 serial communication interface of standard configuration and communicating by letter of host computer with the program input through PLC, realizes that control program is by the transmission of host computer to PLC (central controller).PLC can be sent to host computer with the standard signal form through the RS232 serial communication interface with data simultaneously, realizes data communication, makes things convenient for the user that control system is operated, and also is convenient to the state that real-time monitored writes down various signals.
(3) peripheral interface circuit part: this part is used to accomplish the level conversion of traffic lights signal and the function of signal lamp drive controlling.Directly peripherals such as the lead-out terminal of PLC and signal lamp are connected; And there is the proof load of signal lamp driving circuit to have stable power; Operate as normal; The conversion of traffic lights is meant that connecting controllable switch S 0 at output terminal realizes Y0 and the switching controls of Y1 when being connected same signal lamp respectively with S1, this wherein the control end signal of gate-controlled switch control by the PLC output order.Detailed process is: with vehicle Flow Detection value q and standard value q
0Relatively, if q＞q
0, realize that by the PLC built-in command Y0, Y2, S0 export high level, and Y1, Y3, S1 output low level can be known by the principle of work of gate-controlled switch; When S0 receives high level, the S0 closing of contact, circuit is connected; The Y0 signal is switched to the green arrow lamp of keeping straight in north and south, and at this moment S1 is in low level, and switch contact is opened; Circuit is in and opens circuit, and as this state continuance t1 after second, detects q≤q
0, realize and above-mentioned opposite state that equally time remaining t2 second, keep straight on and show green round end lamp in north and south by the PLC built-in command.Circulation realizes the conversion of traffic lights signal form like this.
(4) slave part: this part mainly refers to input to from the outside vehicle flowrate signal and the PLC power unit of central controller.Vehicle Flow Detection has a variety of methods, and native system adopts the vehicle flow detection system based on pyroelectric infrared sensor that is widely used, the information of vehicle flowrate of output crossing, north and south Through Lane.The working time of each phase place relatively obtains at the back real-time traffic flow amount data and standard value in this system, so the RS-232 interface after needing information of vehicle flowrate through expansion is connected to central controller.In this part: SD-transmission data, RD-reception data, RS-data transfer requested, CS-accept request, and can transmit data.The PLC power unit is responsible for working power to total system being provided, and adopts specified 220V, the 50/60Hz AC power.
(5) two communication processs are arranged in the circuit: first is the communication process of host computer and PLC; The effect of this process is that control program is sent to PLC from host computer; This communication process mainly is connected with the RS232 interface of host computer standard configuration the RS232 interface of the last standard configuration of PLC through the RS232 bus, realize communication.Second is the data communication of vehicle flowrate signal and PLC.Because the PLC standard design has only the RS232 interface of a passage, is the standard programming mouth, so the communication of vehicle flowrate signal need insert the configurable communication plug-in card of PLC on the PLC processor, expands the RS232 interface of one 1 passage.
Control system I/O table
Annotate: have only these three traffic lights of north and south craspedodrome green light, thing right-hand rotation red light and thing right-hand rotation green light at actual crossing.Y0 and Y1 represent two kinds of forms (round end and arrow) of thing craspedodrome green light respectively.
The explanation of I/O operation rule:
The operation rule of native system is as shown in Figure 7, and at first whether the wish decision according to traffic administration person starts the traffic control scheme in the present embodiment.If the traffic control scheme in the startup present embodiment, then system brings into operation.According to the operation mechanism in the above-mentioned control system explanation; Green arrow lamp NSG1 and East and West direction right-hand rotation signal red light EWR operation t1 is kept straight on after second in the north-south; Keep straight on green round end lamp NSG2 and East and West direction of north and south turned right green arrow lamp EWG operation t2 second; So far the signal controlling of one-period finishes, and gets into the next signal control cycle, and operation mechanism is the same.
The explanation of I/O operation sequential
X1 output high level during the native system operation.Keep straight on the earlier bright t1 of green arrow lamp second in north and south, i.e. Y0 output high level t1 second, Y1 output low level t1 second, promptly the north-south green round end lamp of keeping straight on is in and opens circuit.According to the traffic control scheme among the embodiment, East and West direction was turned right and to be red eye this moment, i.e. Y2 output high level t1 second, Y3 output low level t1 second.Keep straight on and should switch to green round end lamp t2 second in north and south afterwards, i.e. Y0 output low level t2 second, Y1 output high level t2 second.Simultaneously East and West direction is turned right and should be shown the green arrow lamp, i.e. Y2 output low level t2 second, Y3 output high level t2 second.As long as system's operation, this process can constantly repeat, and is the decision of real-time traffic flow according to the explanation t1 of above-mentioned control system, the occurrence of t2 just, and is unfixing.Concrete sequential synoptic diagram is as shown in Figure 8.
Claims (6)
1. the signal lamp control system that can regulate display shape; It is characterized in that: comprise central controller, host computer, vehicle Flow Detection module, display control module and signal lamp; Wherein central controller connects host computer, vehicle Flow Detection module and display control module respectively; Said signal lamp connects display control module; This display control module comprises first gate-controlled switch and second gate-controlled switch, and this first gate-controlled switch connects first lead-out terminal of said central controller, and second gate-controlled switch connects second lead-out terminal of said central controller.
2. according to the said signal lamp control system that can regulate display shape of claim 1, it is characterized in that: said central controller is the PLC controller.
3. according to the said signal lamp control system that can regulate display shape of claim 1, it is characterized in that: said vehicle Flow Detection module is the vehicle flow detection system based on pyroelectric infrared sensor.
4. according to the said signal lamp control system that can regulate display shape of claim 1, it is characterized in that: said central controller is provided with display module or also comprises the display module that connects this central controller.
5. according to the said signal lamp control system that can regulate display shape of claim 4, it is characterized in that: said display module is a LED display.
6. according to the said signal lamp control system that can regulate display shape of claim 1, it is characterized in that: also comprise the drive control module that connects display control module and signal lamp.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011202029222U CN202102600U (en) | 2011-06-16 | 2011-06-16 | Signal-lamp control system capable of regulating display shapes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202029222U CN202102600U (en) | 2011-06-16 | 2011-06-16 | Signal-lamp control system capable of regulating display shapes |
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| CN202102600U true CN202102600U (en) | 2012-01-04 |
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| CN2011202029222U Expired - Fee Related CN202102600U (en) | 2011-06-16 | 2011-06-16 | Signal-lamp control system capable of regulating display shapes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231238A (en) * | 2011-06-16 | 2011-11-02 | 东南大学 | Signal lamp control system capable of regulating display shapes |
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2011
- 2011-06-16 CN CN2011202029222U patent/CN202102600U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231238A (en) * | 2011-06-16 | 2011-11-02 | 东南大学 | Signal lamp control system capable of regulating display shapes |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20140616 |
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| EXPY | Termination of patent right or utility model |