CN105430098B - Rail switching scheduling system with scanning priority - Google Patents
Rail switching scheduling system with scanning priority Download PDFInfo
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- CN105430098B CN105430098B CN201510971776.2A CN201510971776A CN105430098B CN 105430098 B CN105430098 B CN 105430098B CN 201510971776 A CN201510971776 A CN 201510971776A CN 105430098 B CN105430098 B CN 105430098B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/04—Automatic systems, e.g. controlled by train; Change-over to manual control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a rail transit dispatching system with scanning priority, which comprises a server unit (1), a vehicle-mounted platform (2), a fixed station (3) and a dispatching platform unit (4), wherein the server unit (1), the vehicle-mounted platform (2) and the fixed station (3) are mutually connected through a bus, the server unit (1), the vehicle-mounted platform (2) and the fixed station (3) are mutually wirelessly connected, and the vehicle-mounted platform (2) and the fixed station (3) are respectively provided with a wireless transceiver for sending periodic scanning signals and receiving calling signals. Compared with the prior art, the vehicle-mounted station and the fixed station can respectively send periodic scanning signals to the server unit, periodically detect whether calling signals from the dispatching station unit exist or not, respond to calling in time and join a talk group, endow high priority to important calling, interrupt low-priority talking, and have the advantages of quick response, high reliability and wide applicability.
Description
Technical Field
The present invention relates to a radio system, and more particularly, to a rail transit scheduling system with scanning priority.
Background
The special wireless communication system for the rail transit is a set of automatic dispatching communication system which is developed by taking a TETRA digital trunking system as a platform and integrating train position information and train number information of a rail transit signal system. The system is composed of a switching control center, base station equipment, scheduling equipment, network management equipment, user terminal equipment and the like. The system provides reliable communication means for voice and data information exchange between fixed users (control centers, vehicle section/parking lot dispatchers, station attendants and the like) and mobile users (train drivers, disaster prevention personnel, maintenance personnel) and provides important guarantee for driving safety, improvement of transportation efficiency and management level and improvement of service quality. Meanwhile, when abnormal conditions occur in urban rail transit operation and wired communication fails, wireless communication means required by commands such as disaster prevention rescue, accident handling and the like can be rapidly provided.
One of the outstanding features of networked operation is that network-level sharing of limited resources is realized, the TETRA digital trunked communication system is a professional mobile communication system based on a digital Time Division Multiple Access (TDMA) technology, each wireless terminal device can communicate with other devices or a dispatching desk, frequent talk group switching is required, and the communication reliability is poor.
Disclosure of Invention
The present invention provides a rail transit scheduling system with scanning priority, which has wide application range and high communication reliability in order to overcome the defects of the prior art.
The purpose of the invention can be realized by the following technical scheme:
a rail transit dispatching system with scanning priority comprises a server unit, a vehicle-mounted platform, a fixed platform and a dispatching platform unit, wherein the server unit and the dispatching platform unit are connected through a bus, the server unit, the vehicle-mounted platform and the fixed platform are mutually wirelessly connected, and the dispatching platform unit comprises a plurality of dispatching controllers.
The wireless transceiver is connected with a clock generator.
The dispatching desk unit comprises a vehicle dispatching controller, a station traffic dispatching controller and a station traveling dispatching controller which are respectively connected with the server unit.
The server unit comprises two servers, one server is a main CAD server, the other server is a standby CAD server, and the two servers are respectively connected with the vehicle-mounted platform, the fixed platform and the dispatching platform unit.
The server unit, the vehicle-mounted platform and the fixed platform are mutually connected through a digital trunking communication network.
The system comprises a vehicle dispatching controller, a station traveling dispatching controller, a server unit, a station traveling dispatching controller, a vehicle dispatching controller and a station traveling dispatching controller, wherein the server unit respectively gives high priority and medium priority to calling signals sent by the vehicle dispatching controller and the station traveling dispatching controller, and gives low priority to other calling signals sent by other equipment in the system to the vehicle dispatching controller, the vehicle dispatching controller and the station traveling dispatching controller continuously send periodic scanning signals through the server unit, whether calling signals from the vehicle dispatching controller or the station traveling dispatching controller exist or not is detected, the vehicle dispatching controller responds to the calling and establishes a talk group after receiving the calling signals, and in the talk group talk process, if the vehicle dispatching controller receives the calling signals with higher priority, the vehicle dispatching controller responds to the calling with higher priority and transfers the calling to the talk group, so that dispatching talk with priority is realized.
And the vehicle-mounted station defaults to communicate with the vehicle dispatching controller.
The fixed station receives the calling signal and responds the calling with higher priority and transfers the calling to the talk group to realize the dispatch talk with priority.
And the fixed station defaults to communicate with the station dispatching controller.
The system also includes a mobile handset.
Compared with the prior art, the invention has the following advantages:
(1) The vehicle-mounted station and the fixed station are respectively provided with a wireless transceiver for sending periodic scanning signals and receiving calling signals, the periodic scanning signals can be respectively sent to the server unit, whether the calling signals from the dispatching station unit exist or not can be periodically detected, and therefore calling is responded in time and a call group is added, and the wireless transceiver has the advantage of being rapid in response.
(2) By continuously sending periodic scanning signals, priority can be given to a specific dispatching group in the dispatching desk unit, so that important monitoring is carried out on important signals, the functions of interruption and call insertion are realized, and normal operation of rail transit is guaranteed.
(3) The server unit comprises two servers, one is a main CAD server, the other is a standby CAD server, and when one server fails, the other server can meet the system requirements, so that the communication reliability of the system is improved.
(4) The vehicle-mounted station defaults to communicate with the vehicle dispatching controller, and the fixed station defaults to communicate with the station dispatching controller, so that a call group does not need to be switched frequently, and communication errors caused by frequent switching are reduced.
(5) The system is also suitable for a TETRA communication system without a call group dispatching or multi-selection function, and is suitable for the condition that the resource loading capacity of a dispatching station group is limited.
Drawings
Fig. 1 is a schematic diagram of the structure and principle of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Examples
As shown in fig. 1, the rail transit dispatching system with scanning priority comprises a server unit 1, a vehicle-mounted platform 2, a fixed station 3 and a dispatching station unit 4, wherein the server unit 1 and the dispatching station unit 4 are connected through a bus, the server unit 1, the vehicle-mounted platform 2 and the fixed station 3 are mutually wirelessly connected through a digital trunked radio (TETRA) communication network, and the vehicle-mounted platform 2 and the fixed station 3 are respectively provided with a wireless transceiver for sending periodic scanning signals and receiving calling signals. The wireless transceiver is connected with a clock generator for generating a clock signal and providing time information for the periodic scanning signal.
The dispatching desk unit 4 includes a vehicle dispatching controller 41, a station traffic dispatching controller 42 and a station traffic dispatching controller 43, which are connected to the server unit 1, respectively, and each dispatching controller transmits a call signal to the server unit 1. The dispatching functions of different dispatching groups are different, and a system administrator can configure different dispatching authorities for different dispatching users, so that the dispatching users are clearly divided into work, and the dispatching command efficiency is improved.
The system further comprises a mobile handset 5, the mobile handset 5 also being capable of sending a call signal to the server unit 1.
The server unit 1 includes two servers, one is a primary CAD server 11, and the other is a backup CAD server 12, and the two servers are respectively connected to the vehicle-mounted stage 2, the fixed stage 3, and the scheduling stage unit 4. The application program of the CAD (computer aided dispatching) dispatching network server generates management and control information of various traveling vehicles by receiving information from a subway signal system (ATS) including information of train numbers, locomotive numbers, driver numbers, states, texts and the like. The CAD server is connected to the trunked wireless network through an application program interface API.
The CAD scheduling system adopts a client/server (C/S) mode, and is a computer network formed by hardware equipment and software. The CAD scheduling server is a server side, each scheduling platform is a client side, and the server side is connected with the client sides through a local area network. And the voice scheduling function and the needed CAD function of the wireless cluster system are integrated to the driving scheduling platform through the connection of the CAD server and the cluster network. The dispatcher and the driver display the required information such as train number, locomotive number, train position and the like on the driving dispatching desk and the vehicle-mounted desk in the communication process. The dispatcher may make a train number or location based call, such as: selectively calling or group calling a certain position, section and direction up and down) train.
The server unit 1 respectively gives high priority and medium priority to call signals sent by the vehicle dispatching controller 41 and the station traveling dispatching controller 43 to the vehicle-mounted platform 2, and gives low priority to other call signals sent by other equipment in the system to the vehicle-mounted platform 2, the vehicle-mounted platform 2 continuously sends periodic scanning signals to the vehicle dispatching controller 41 and the station traveling dispatching controller 43 through the server unit 1 respectively, whether call signals from the vehicle dispatching controller 41 or the station traveling dispatching controller 43 exist is detected, the vehicle-mounted platform 2 responds to the call and establishes a talk group after receiving the call signals, and in the talk process of the talk group, if the vehicle-mounted platform 2 receives the call signals with higher priority, the vehicle-mounted platform 2 responds to the call with higher priority and transfers to the talk group, so that dispatching talk with priority is realized.
Similarly, the server unit 1 respectively gives high priority and medium priority to call signals sent by the station traffic scheduling controller 42 and the station traffic scheduling controller 43 to the fixed station 3, and gives low priority to other call signals sent by other devices in the system to the fixed station 3, the fixed station 3 respectively sends periodic scanning signals to the station traffic scheduling controller 42 and the station traffic scheduling controller 43 through the server unit 1 without interruption, detects whether there is a call signal from the station traffic scheduling controller 42 or the station traffic scheduling controller 43, the fixed station 3 responds to the call and establishes a talk group after receiving the call signal, and in the talk process of the talk group, if the fixed station 3 receives the call signal with higher priority, the fixed station 3 responds to the call with higher priority and transfers to the talk group, so as to realize dispatch talk with priority.
The priority level can also be represented by the length of the scanning period, the priority level is higher, the scanning period is shorter, i.e. whether there is a call signal is detected at a higher frequency.
The fixed station 3 defaults to communicate with the station dispatching controller 42, and the vehicle-mounted station 2 defaults to communicate with the vehicle dispatching controller 41, namely: when other calling signals are not received or the fixed station 3 is in a certain talk group, the fixed station 3 defaults to be in the talk group with the station dispatching controller 42, the vehicle-mounted station 2 defaults to be in the talk group with the vehicle dispatching controller 41, and after other calling signals are received, the talk group is established according to the priority to carry out dispatching talking, so that talk group switching does not need to be frequently carried out.
The fixed station 3 may also communicate with the mobile handset 5 via a digital trunked communication network.
When the vehicle platform 2 performs locomotive joint control, the station traveling dispatching controller 43 which can be transferred to the current station can call the fixed platform 3, and at the moment, the high-priority call of the server unit 1 can still be scanned and received. The train-machine integrated control refers to train affairs, locomotive affairs and other related personnel of traveling vehicles to use the train wireless dispatching communication equipment to contact according to the regulations, prompt traveling safety information and confirm the inter-control mode of the traveling requirements. The main equipment for vehicle-machine integrated control comprises a station radio station, a locomotive radio station, a portable radio station, a communication recording device and the like.
When the fixed station 3 makes a station district call, the station traveling dispatching controller 43 capable of being grouped to the station calls the vehicle platform 2 of the locomotive in the current station range, and at the moment, the high-priority call of the server unit 1 can still be scanned and received.
The server unit 1 dynamically loads the talk group that wants to listen or call.
Claims (7)
1. A rail transit dispatching system with scanning priorities comprises a server unit (1), a vehicle-mounted platform (2), a fixed station (3) and a dispatching platform unit (4), wherein the server unit (1) and the dispatching platform unit (4) are connected through a bus, the server unit (1), the vehicle-mounted platform (2) and the fixed station (3) are mutually wirelessly connected, and the dispatching platform unit (4) comprises a plurality of dispatching controllers, and the rail transit dispatching system is characterized in that the vehicle-mounted platform (2) and the fixed station (3) are respectively provided with a wireless transceiver for sending periodic scanning signals and receiving calling signals, the server unit (1) respectively gives different priorities to the calling signals received by the vehicle-mounted platform (2) and the fixed station (3), a conversation group is established after the vehicle-mounted platform (2) and the fixed station (3) receive the calling signals, and the conversation group where the vehicle-mounted platform is located exits after receiving the higher-priority calling signals and responds to the higher-priority calling signals, and a new conversation group is established;
the dispatching desk unit (4) comprises a vehicle dispatching controller (41), a station dispatching controller (42) and a station travelling dispatching controller (43) which are respectively connected with the server unit (1);
the system comprises a server unit (1), a vehicle dispatching controller (41), a station traveling dispatching controller (43), a station traveling dispatching controller (2), a station traveling dispatching controller (43), a station traveling dispatching controller (2), and a vehicle-mounted station (2), wherein the server unit (1) respectively gives high priority and medium priority to calling signals sent to the vehicle-mounted station (2) by the vehicle dispatching controller (41) and the station traveling dispatching controller (43), and gives low priority to other calling signals sent to the vehicle-mounted station (2) by other equipment in the system, the vehicle-mounted station (2) respectively sends periodic scanning signals to the vehicle dispatching controller (41) and the station traveling dispatching controller (43) uninterruptedly, detects whether calling signals from the vehicle dispatching controller (41) or the station traveling dispatching controller (43) exist, responds to the calling and establishes a communication group after the vehicle-mounted station (2) receives the calling signals, and if the vehicle-mounted station (2) receives the calling signals with higher priority in the communication group, the vehicle-mounted station (2) responds to the calling with higher priority and transfers to the communication group, and realizes dispatching communication with priority;
the system comprises a server unit (1), a station traffic dispatching controller (42), a station traffic dispatching controller (43), a fixed station (3) and a fixed station traffic dispatching controller (43), wherein the server unit respectively endows calling signals sent to the fixed station (3) by the station traffic dispatching controller (42) and the station traffic dispatching controller (43) and endows other calling signals sent to the fixed station (3) by other equipment in the system with low priority, the fixed station (3) respectively sends periodic scanning signals to the station traffic dispatching controller (42) and the station traffic dispatching controller (43) uninterruptedly, detects whether calling signals from the station traffic dispatching controller (42) or the station traffic dispatching controller (43) exist, responds to the calling and establishes a talk group after receiving the calling signals, and if the fixed station (3) receives the calling signals with higher priority in the talk group, the fixed station (3) responds to the calling with higher priority and transfers to the talk group, and dispatching talk with priority is achieved.
2. The rail transit scheduling system with scanning priority of claim 1 wherein the wireless transceiver is coupled to a clock generator.
3. The rail transit dispatching system with scanning priority as claimed in claim 1, wherein the server unit (1) comprises two servers, one is a primary CAD server (11) and the other is a standby CAD server (12), and the two servers are respectively connected with the vehicle-mounted stage (2), the fixed stage (3) and the dispatching stage unit (4).
4. The rail transit scheduling system with scanning priority as claimed in claim 1, characterized in that the server unit (1), the vehicle-mounted stage (2) and the fixed stage (3) are connected to each other via a digital trunking communication network.
5. The system of claim 1, wherein the vehicle station (2) is in communication with the vehicle dispatch controller (41) by default.
6. The rail transit dispatching system with scanning priority as claimed in claim 1, wherein the fixed station (3) communicates with the station dispatching controller (42) by default.
7. A rail cross-scheduling system with scanning priority as claimed in claim 1, characterized in that the system further comprises a mobile handset (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510971776.2A CN105430098B (en) | 2015-12-22 | 2015-12-22 | Rail switching scheduling system with scanning priority |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510971776.2A CN105430098B (en) | 2015-12-22 | 2015-12-22 | Rail switching scheduling system with scanning priority |
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| CN105430098A CN105430098A (en) | 2016-03-23 |
| CN105430098B true CN105430098B (en) | 2023-02-21 |
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| CN112488433A (en) * | 2019-09-11 | 2021-03-12 | 西安雷迪信息技术有限公司 | Electronic work order issuing and feedback method based on TD-LTE |
Citations (2)
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| CN101964950A (en) * | 2010-11-04 | 2011-02-02 | 哈尔滨工业大学 | Authentication method of cluster scheduling server of broadband multimedia cluster system based on TD-LTE |
| CN103935385A (en) * | 2014-04-18 | 2014-07-23 | 天津七一二通信广播有限公司 | Train dispatching operation method through data communication |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6920114B2 (en) * | 2000-12-01 | 2005-07-19 | Motorola, Inc. | Method of call control for console sites monitoring critical talkgroups in a packet-based communication system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964950A (en) * | 2010-11-04 | 2011-02-02 | 哈尔滨工业大学 | Authentication method of cluster scheduling server of broadband multimedia cluster system based on TD-LTE |
| CN103935385A (en) * | 2014-04-18 | 2014-07-23 | 天津七一二通信广播有限公司 | Train dispatching operation method through data communication |
Non-Patent Citations (1)
| Title |
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| 数字集群通信系统的特点及在新建铁路上的应用;姜斌;《电气化铁道》;20050220(第1期);第42-44、50页 * |
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