CN114291139A - Intelligent distributed traffic control system - Google Patents
Intelligent distributed traffic control system Download PDFInfo
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- CN114291139A CN114291139A CN202111645846.7A CN202111645846A CN114291139A CN 114291139 A CN114291139 A CN 114291139A CN 202111645846 A CN202111645846 A CN 202111645846A CN 114291139 A CN114291139 A CN 114291139A
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Abstract
The invention discloses an intelligent distributed traffic control system, which comprises a plurality of vehicle-mounted controllers, a plurality of intelligent controllers and a control center, wherein the plurality of vehicle-mounted controllers send corresponding train position information to the control center; the control center is connected with the intelligent traffic control box through a backbone network interface, receives the train position information and sends the train position information to the system; the intelligent traffic control box is connected with a horn, a barrier gate and a signal lamp through a special signal machine interface on the barrier gate, reads intersection information and feeds the intersection information back to the control center; and a plurality of interfaces. The invention is designed for a distributed architecture, the center is provided with double redundant CPUs, the mode of the interface of the central CPU and the vehicle-mounted central ATS system is adopted, the system linkage is simplified, and the scattered processing control is changed into centralized processing distributed control. The system combines a GPS positioning system, a crossing gate machine and a voice alarm device, and preferentially opens a crossing for the tramcar, so that independent release of the tramcar and social vehicles is realized, and the tramcar is guaranteed to preferentially, safely and efficiently pass through the level crossing.
Description
Technical Field
The invention relates to the field of intelligent traffic control, in particular to an intelligent distributed traffic control system.
Background
The traditional traffic control at the level crossing of the railway can only solve the problem of blocking pedestrians and vehicles passing through the current road, and can not intensively and uniformly coordinate the condition of the mixed road right, namely the condition that the tramcar and the social vehicles share the road right. The train operation efficiency can not be improved, the train-ground cooperation efficiency is low, interface protocols need to be designed between crossings and tramcars respectively, the butt joint work is complicated, the linkage is slow, and the right of way priority can not be set respectively.
The invention discloses an intelligent distributed traffic control system, which is developed by aiming at the problems that the traditional railway level crossing has single traffic control function and complicated interfaces, and when the traditional railway level crossing is applied to crossing control, each crossing control box needs to be respectively communicated with a tramcar-mounted system, and an interface protocol is designed. The intelligent distributed traffic control system is characterized in that a traditional crossing control box is designed into an intelligent traffic control box, a distributed architecture design is adopted, a dual-redundancy CPU is arranged in the center, and a central CPU and vehicle-mounted and central ATS system interface mode is adopted, so that system linkage is simplified, complexity is reduced, and scattered processing control is changed into centralized processing distributed control. The system combines a GPS positioning system, a crossing gate machine and a voice alarm device, and preferentially opens a crossing for the tramcar, so that independent release of the tramcar and social vehicles is realized, and the tramcar is guaranteed to preferentially, safely and efficiently pass through the level crossing.
Disclosure of Invention
The application provides a switch action current monitoring system and a switch action current monitoring method, which aim to solve the problems. The distributed architecture design is adopted, the dual redundant CPUs are arranged in the center, and the interface mode of the central CPU and the vehicle-mounted central ATS system is adopted, so that the system linkage is simplified, the complexity is reduced, and the scattered processing control is changed into centralized processing distributed control. In order to achieve the purpose, the following technical scheme is adopted in the application:
the plurality of vehicle-mounted controllers send the corresponding train position information to the control center;
the control center is connected with the intelligent traffic control box through a backbone network interface, receives the train position information and sends the train position information to the system;
the intelligent traffic control box is connected with a horn, a barrier gate and a signal lamp through a special signal machine interface on the barrier gate, reads intersection information and feeds the intersection information back to the control center;
the system judges whether the condition that the tramcar can pass preferentially is met, if the condition is met, the corresponding signal lamp on the gate machine is controlled to change from a green light to a red light, the gate falls off the rod, and the road is displayed on the gate machine to be forbidden to pass;
and the interface with the barrier gate machine and the interface with the voice sounder.
Preferably, the special signal interface on the road gate connects the intelligent traffic control box with a special signal machine on the road gate.
Preferably, the interface of the road gate machine is used for connecting the intelligent traffic control box with the road gate machine and controlling a lifting rod of the road gate machine.
Preferably, the interface with the backbone network communicates the intelligent traffic control box with the control center network;
the control center sends a control command to the intelligent traffic control box through a backbone network; and the intelligent traffic control box uploads the states of all local equipment to the center through a backbone network.
Preferably, the interface with the voice sounder connects the intelligent traffic control box with the voice sounder through an intermediate relay main contact;
when the train goes up or down to approach the intersection, the power supply of the sound equipment is controlled to be switched on through the dry contact: on means "close"; on the contrary, when the train moves upwards or downwards and leaves the intersection, the power supply of the sounder is controlled to be disconnected through the main contact: broken means "go"; when tram is close the crossing, the sounder broadcasts: the passing and no passing of the electric vehicle are realized.
Preferably, the vehicle-mounted controller is provided with a vehicle-mounted LTE antenna and a vehicle-mounted GPS antenna.
Preferably, the system receives and judges train position information, and automatically triggers a priority request when the train approaches the intersection area, so that the priority triggering of the intersection is realized.
Preferably, the command uploaded by the control center includes: triggering priority, closing priority, priority full on and priority full off.
The invention has the following beneficial effects: the distributed architecture design is adopted, the dual redundant CPUs are arranged in the center, and the interface mode of the central CPU and the vehicle-mounted central ATS system is adopted, so that the system linkage is simplified, the complexity is reduced, and the scattered processing control is changed into centralized processing distributed control. The system combines a GPS positioning system, a crossing gate machine and a voice alarm device, and preferentially opens a crossing for the tramcar, so that independent release of the tramcar and social vehicles is realized, and the tramcar is guaranteed to preferentially, safely and efficiently pass through the level crossing.
Drawings
FIG. 1 is a schematic diagram of the system components of an intelligent distributed traffic control system of the present invention;
FIG. 2 is a framework diagram of the distributed control concept of an intelligent distributed traffic control system of the present invention;
fig. 3 is a schematic structural diagram of an intelligent traffic control box of the intelligent distributed traffic control system according to the invention.
Description of the drawings: the intelligent cabinet comprises a cabinet body-1, a fan-2, a limit switch-3, an in-cabinet lighting-4, a mounting plate-5, a knob box-6, a knob box-7, a PLC (programmable logic controller) -8, a switch-9, a relay-10, a wiring terminal-11, a power amplifier-12 and an optical fiber terminal box-13.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.
The terms "first," "second," and the like in the claims and in the description of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, it being understood that the terms so used are interchangeable under appropriate circumstances and are merely used to describe a distinguishing manner between similar elements in the embodiments of the present application and that the terms "comprising" and "having" and any variations thereof are intended to cover a non-exclusive inclusion such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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, and the terms used herein in the specification of the present application are for the purpose of describing particular embodiments only and are not intended to limit the present application.
(1) each intelligent traffic signal control box adopts a CPU1500 series + distributed I/O module group to realize intersection logic control, a distributed I/O module group is arranged in each intersection control box, a dual-system CPU1513R is arranged in a central control room and is communicated to the distributed I/O module group through PROFINET, and optical fiber communication is adopted.
(2) The CPU1513R communicates with the control center TPS server through the ethernet port using the MODBUS TCP protocol, collects the position information of all vehicles, and defines in one network segment.
(3) A control framework of a dual-system CPU1513R + distributed I/O module group is adopted, all related intersections are controlled by one CPU, and in order to improve the safety and stability of the system, the scheme is designed to be a dual-machine hot standby redundancy PLC with one master and one slave.
The main process of communication between the intelligent distributed traffic control system and the vehicle-mounted controller is as follows: the vehicle-mounted controller sends the position information to the control center through the wireless system, the control center writes the vehicle state position information into the intelligent traffic signal control box PLC through an MODBUS TCP protocol, the PLC reads the intersection state information and sends the intersection state information to the control center, then the control center sends the vehicle state information and the intersection state information to the system, the system judges whether the condition that the open tramcar preferentially passes is met after receiving the information, if the condition is met, the corresponding signal lamp on the gate machine is controlled to change from a green lamp to a red lamp, the gate falls down, and the road is displayed on the gate machine to be forbidden to pass, and when the vehicle leaves, the signal lamp on the gate machine is controlled to change from a red lamp to a green lamp, the gate rises up, and the road is displayed on the gate machine to be allowed to pass.
When the train goes upwards or downwards to approach the intersection, the intelligent distributed traffic control system judges whether the condition that the open tramcar passes through preferentially is met, namely the state information of the intersection is judged, and the special signal machine on the barrier gate is controlled to turn off the green light and turn on the red light, so that pedestrians and social vehicles are prohibited from passing. The triggering mode is the triggering of a priority request and is automatic triggering, and the control center can send a command of 'triggering priority', 'closing priority', 'priority full-on', 'priority full-off' to the intelligent distributed traffic control system. "trigger override": a single annunciator turn-on priority function; "turn-off priority": a single annunciator turn-off priority function; "priority full open": the signal machine controlled by the machine is opened with a priority function; "priority full off": the signal machine of local control closes the priority function.
Tables 1 to 4 are descriptions of interfaces and functions of the intelligent distributed traffic control system and the related devices:
TABLE 1 description of interface with special signal machine on road gate
TABLE 2 interface description with banister machine
TABLE 3 interface description with backbone network
TABLE 4 interface description with Voice sounder
the mounting plate is divided into three parts, a switching power supply is arranged in the first part and used for providing power for the intelligent traffic control box, a PLC (programmable logic controller) and a switch and a relay sleeved on the switch are arranged in the second part, and a wiring terminal is arranged in the third part;
and the power amplifier and the optical fiber terminal box are arranged at the bottom end of the box body.
The intelligent traffic signal control box can reliably work under the following environmental conditions:
(1) the altitude of the installation site is not higher than 2000 m;
(2) maximum ambient temperature: the upper limit of the ambient air temperature is +40 ℃, and the average air temperature within 24h is not more than +35 ℃;
(3) ambient minimum temperature: the lower limit of the ambient air temperature is-5 ℃;
(4) humidity: the relative humidity of the installation site is not more than 50% when the highest temperature is +40 ℃; higher relative humidity is allowed at lower temperatures, with maximum relative humidity not exceeding 90% (no condensation).
(5) And the frequent or continuous vibration with the vibration frequency of 10-55Hz is prevented from being far away from a strong vibration source. Avoiding corrosive and flammable gases.
The above description is only an embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the technical field of the present invention by those skilled in the art are covered by the claims of the present invention.
Claims (9)
1. An intelligent distributed traffic control system for distributed control of a railroad level crossing, comprising:
the plurality of vehicle-mounted controllers send the corresponding train position information to the control center;
the control center is connected with the intelligent traffic control box through a backbone network interface, receives the train position information and sends the train position information to the system;
the intelligent traffic control box is connected with a horn, a barrier gate and a signal lamp through a special signal machine interface on the barrier gate, reads intersection information and feeds the intersection information back to the control center;
the system judges whether the condition that the tramcar can pass preferentially is met, if the condition is met, the corresponding signal lamp on the gate machine is controlled to change from a green light to a red light, the gate falls off the rod, and the road is displayed on the gate machine to be forbidden to pass;
and the interface with the barrier gate machine and the interface with the voice sounder.
2. The intelligent distributed traffic control system of claim 1, wherein the dedicated signal interface on the gateway connects the intelligent traffic control box with a dedicated signal machine on the gateway.
3. The intelligent distributed traffic control system of claim 1, wherein the interface with the gateway connects the intelligent traffic control box with the gateway to control the lifting and dropping bars of the gateway.
4. The intelligent distributed traffic control system of claim 1, wherein said interface to a backbone network communicates said intelligent traffic control box to said control center network;
the control center sends a control command to the intelligent traffic control box through a backbone network; and the intelligent traffic control box uploads the states of all local equipment to the center through a backbone network.
5. The intelligent distributed traffic control system of claim 1, wherein the interface with the voice sounder connects the intelligent traffic control box with the voice sounder via an intermediate relay trunk;
when the train goes up or down to approach the intersection, the power supply of the sound equipment is controlled to be switched on through the dry contact: on means "close"; on the contrary, when the train moves upwards or downwards and leaves the intersection, the power supply of the sounder is controlled to be disconnected through the main contact: broken means "go"; when tram is close the crossing, the sounder broadcasts: the passing and no passing of the electric vehicle are realized.
6. The intelligent distributed traffic control system of claim 1, wherein the onboard controller is provided with an onboard LTE antenna and an onboard GPS antenna.
7. The intelligent distributed traffic control system as claimed in claim 1, wherein the system receives and judges train position information, and automatically triggers a priority request when a train approaches an intersection area, thereby realizing priority triggering of the intersection.
8. The intelligent distributed traffic control system according to claim 1, wherein the control center uploads commands including: triggering priority, closing priority, priority full on and priority full off.
9. The intelligent distributed traffic control system as claimed in claim 1, wherein the intelligent traffic control box comprises a box body, a fan arranged at the top end of the box body, and a limit switch and a cabinet lighting which are connected to the top end of the box body in a hanging manner; the middle part of the box body is provided with an installation plate, and a knob box is arranged above the installation plate and used for manually/automatically controlling the intelligent traffic control box;
the mounting plate is divided into three parts, a switching power supply is arranged in the first part and used for providing power for the intelligent traffic control box, a PLC (programmable logic controller) and a switch and a relay sleeved on the switch are arranged in the second part, and a wiring terminal is arranged in the third part;
and the power amplifier and the optical fiber terminal box are arranged at the bottom end of the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111645846.7A CN114291139A (en) | 2021-12-29 | 2021-12-29 | Intelligent distributed traffic control system |
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| CN202111645846.7A CN114291139A (en) | 2021-12-29 | 2021-12-29 | Intelligent distributed traffic control system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100036832A (en) * | 2008-09-30 | 2010-04-08 | 한국철도기술연구원 | Priority traffic signal control system for automatic operation vehicle |
| CN204110068U (en) * | 2014-09-28 | 2015-01-21 | 通号万全信号设备有限公司 | A kind of traffic signal interface system of tramway train main track whistle control system |
| CN107622680A (en) * | 2017-09-25 | 2018-01-23 | 中铁二院重庆勘察设计研究院有限责任公司 | A kind of tramcar level crossing complex control system |
| CN107767677A (en) * | 2017-11-17 | 2018-03-06 | 中国铁道科学研究院 | Tramcar crossing safety zone control device based on mobile unit |
-
2021
- 2021-12-29 CN CN202111645846.7A patent/CN114291139A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100036832A (en) * | 2008-09-30 | 2010-04-08 | 한국철도기술연구원 | Priority traffic signal control system for automatic operation vehicle |
| CN204110068U (en) * | 2014-09-28 | 2015-01-21 | 通号万全信号设备有限公司 | A kind of traffic signal interface system of tramway train main track whistle control system |
| CN107622680A (en) * | 2017-09-25 | 2018-01-23 | 中铁二院重庆勘察设计研究院有限责任公司 | A kind of tramcar level crossing complex control system |
| CN107767677A (en) * | 2017-11-17 | 2018-03-06 | 中国铁道科学研究院 | Tramcar crossing safety zone control device based on mobile unit |
Non-Patent Citations (1)
| Title |
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| 温业中: "有轨信号控制系统的研究与实现", 铁路通信信号工程技术, vol. 16, no. 3, pages 51 - 60 * |
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