CN106515796B - It is a kind of based on the mostly temporary speed-limiting method and DSU of work station now - Google Patents
It is a kind of based on the mostly temporary speed-limiting method and DSU of work station now Download PDFInfo
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- CN106515796B CN106515796B CN201611127687.0A CN201611127687A CN106515796B CN 106515796 B CN106515796 B CN 106515796B CN 201611127687 A CN201611127687 A CN 201611127687A CN 106515796 B CN106515796 B CN 106515796B
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- PLAIAIKZKCZEQF-UHFFFAOYSA-N methyl 6-chloro-2-oxo-3h-1,2$l^{4},3-benzodithiazole-4-carboxylate Chemical compound COC(=O)C1=CC(Cl)=CC2=C1NS(=O)S2 PLAIAIKZKCZEQF-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000004044 response Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
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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
- B61L27/20—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation
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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
- B61L27/20—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation
- B61L2027/204—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation using Communication-based Train Control [CBTC]
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- Train Traffic Observation, Control, And Security (AREA)
Abstract
The present invention disclose it is a kind of based on the mostly temporary speed-limiting method and DSU of work station now, the method includes：DSU receives the temporary speed limitation message that multiple now work stations are sent, and the temporary speed limitation message includes：Send the identifying of existing ground work station, the mark of every DSU, the temporary speed limitation information corresponding with the mark of every DSU of temporary speed limitation message；The DSU belongs to same ATS systems with more now work stations；The DSU obtains the corresponding temporary speed limitation information identified with the DSU according to the mark of itself DSU；The temporary speed limitation information is sent into ZC, so that the ZC controls CBTC train operations according to the temporary speed limitation information.The method of the present invention receives the temporary speed limitation information of multiple now work stations by DSU, and then be guaranteed at safety, stability and the fault-tolerance of CBTC operational mode train control systems.
Description
Technical Field
The invention relates to the field of signal control, in particular to a temporary speed limiting method based on multiple local workstations and a DSU (distributed service Unit).
Background
With the continuous development of urban rail transit, communication based CBTC (Train Control system) brings great changes to urban rail transit signal systems, and the safe running of trains is more and more important. At present, in China, the intelligentization is low in the field of train control and manual intervention is too much, particularly in a temporary speed limit section of a blind spot of train control, a driver only identifies information by a temporary speed limit sign on the ground, and speed limit automatic transmission and automatic control measures are lacked.
The traditional temporary speed limiting scheme only aims at a single local workstation, namely, one local workstation can only send out a temporary speed limiting command to the DSU (Database Storage Unit) to which the local workstation belongs, and other local workstations cannot send out the temporary speed limiting command to the DSU.
Disclosure of Invention
In view of the above problems, the present invention proposes a temporary speed limiting method and DSU based on a multi-site workstation that overcomes or at least partially solves the above problems.
To this end, in a first aspect, the present invention provides a temporary speed limiting method based on a multi-site workstation, including:
the DSU receives temporary speed limit messages sent by a plurality of local workstations, wherein the temporary speed limit messages comprise: the temporary speed limit information comprises the identification of a local workstation which sends the temporary speed limit information, the identification of each DSU and the temporary speed limit information corresponding to the identification of each DSU; the DSU and the multi-site workstation belong to the same ATS system;
the DSU acquires temporary speed limit information corresponding to the DSU identification according to the identification of the DSU;
and the DSU sends the temporary speed limit information to the ZC so that the ZC controls the CBTC train to run according to the temporary speed limit information.
Optionally, before the step of transmitting the temporary speed limit information to the ZC, the method further includes:
and sending the database version number to the ZC so that the ZC updates the database of the ZC according to the database version number.
Optionally, before the step of transmitting the temporary speed limit information to the ZC, the method further includes:
and the DSU updates a database in the DSU according to the temporary speed limit information.
Optionally, the method further comprises:
receiving the temporary speed limit information periodically uploaded by the ZC, and sending the received temporary speed limit information to a plurality of local workstations belonging to the same ATS system so that the plurality of local workstations send the temporary speed limit information to the ATS system for display;
or,
receiving the temporary speed limit information periodically uploaded by the ZC;
and storing the temporary speed limit information uploaded by the ZC, and sending the stored temporary speed limit information to the plurality of local workstations belonging to the same ATS system so that the plurality of local workstations send the temporary speed limit information to the ATS system for display.
Optionally, after the step of receiving the temporary speed limit messages sent by a plurality of local workstations by the DSU, the method further comprises:
replying a response to each of the local workstations sending the temporary speed limit message; and the number of the first and second groups,
and receiving the temporary speed limit messages sent by the plurality of local workstations again, and replying a response again.
Optionally, before the step of acquiring, by the DSU according to the DSU identifier of the DSU, the temporary speed limit information corresponding to the DSU identifier, the method further includes:
searching whether the temporary speed limit message contains the DSU identification or not according to the DSU identification, if so, acquiring temporary speed limit information corresponding to the DSU identification according to the identification of the DSU;
otherwise, ending.
Optionally, the temporary speed limit message further includes:
and the section mark to which the temporary speed limit information belongs.
Optionally, the method further comprises:
the DSU receives a message for canceling the temporary speed limit sent by the plurality of local workstations, wherein the message for canceling the temporary speed limit comprises the following steps: the identification of the local workstation sending the message, the identification of each DSU and the information of canceling the temporary speed limit corresponding to the identification of each DSU;
the DSU acquires the information of canceling the temporary speed limit corresponding to the DSU identification according to the identification of the DSU;
and sending the information of canceling the temporary speed limit to a ZC (Zadoff-Chu) so that the ZC controls the operation of a CBTC (train control) train according to the information of canceling the temporary speed limit.
In a second aspect, the present invention provides a DSU comprising:
a receiving unit, configured to receive temporary speed limit messages sent by multiple local workstations, where the temporary speed limit messages include: the temporary speed limit information comprises the identification of a local workstation which sends the temporary speed limit information, the identification of each DSU and the temporary speed limit information corresponding to the identification of each DSU; the DSU and the multi-site workstation belong to the same ATS system;
the acquisition unit is used for acquiring temporary speed limit information corresponding to the DSU identifier according to the DSU identifier;
and the sending unit is used for sending the temporary speed limit information to the ZC so that the ZC controls the train to run according to the temporary speed limit information.
In a third aspect, the present invention provides a CBTC system, comprising: ZC and above-mentioned DSU, DSU with the ZC interaction.
According to the technical scheme, the temporary speed limiting method based on the multiple local workstations and the DSU provided by the invention receive the temporary speed limiting information of the multiple local workstations through the DSU, so that the safety, the stability and the fault tolerance of the train control system in the CBTC operation mode are ensured.
Drawings
FIG. 1 is a block diagram of an exemplary embodiment of an architecture for interaction between a local workstation and a DSU;
FIG. 2 is a flowchart illustrating a temporary speed limit method based on multiple local workstations according to an embodiment of the present invention;
FIG. 3 is a signaling diagram illustrating a temporary speed limit method based on multiple local workstations according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a DSU according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention.
In order to adapt to the situation that multiple local workstations can send out temporary speed limit setting to a DSU, the temporary speed limit method based on the multiple local workstations enables the multiple local workstations to set the temporary speed limit, and improves the safety and automation of the whole train control system while operating efficiently.
Fig. 1 is a schematic diagram illustrating an architecture of interaction between a local workstation and a DSU according to an embodiment of the present invention, and fig. 2 is a schematic flowchart illustrating a temporary speed limiting method based on multiple local workstations according to an embodiment of the present invention; referring to fig. 1 and 2, the method of the present embodiment includes the following steps:
101. the DSU receives temporary speed limit messages sent by a plurality of local workstations, wherein the temporary speed limit messages comprise: the temporary speed limit information comprises the identification of the local workstation sending the temporary speed limit information, the identification of each DSU and the temporary speed limit information corresponding to the identification of each DSU.
In particular, the DSU in this embodiment and the multi-local workstation belong to the same ATS (Automatic train supervision System).
That is, the DSUs receive the temporary speed limit messages sent by the local workstations, as shown in fig. 1.
In addition, in order to enable a subsequent ZC (Zone Controller) to better control the operation of the CBTC train, the temporary speed limit message may further include: and the section mark to which the temporary speed limit information belongs. Therefore, after receiving the temporary speed limit information, the ZC can determine the section used by the temporary speed limit information, and ensure the safety and stability of the CBTC train.
102. And the DSU acquires temporary speed limit information corresponding to the DSU identification according to the identification of the DSU.
103. And the DSU sends the temporary speed limit information to the ZC so that the ZC controls the CBTC train to run according to the temporary speed limit information.
It is understood that the main executing bodies of the method in the embodiment are all DSUs.
The method effectively utilizes the redundancy advantages of a plurality of local workstations, ensures that the temporary speed limit information in the system can still be updated when one or a plurality of local workstations cannot normally operate due to reasons, further improves the stability and fault tolerance of the whole system, and reduces the safety risk brought to the whole system and each subsystem and equipment in the system due to various sudden faults.
For example, before step 103, the method further includes step 102b, which is not shown in fig. 2, described below, as shown in fig. 3.
102b, the DSU updates the database in the DSU according to the temporary speed limit information.
In addition, before step 102, the method shown in fig. 2 may further include the following step 102a not shown in the figure:
102a, searching whether the temporary speed limit message contains the DSU identifier according to the DSU identifier of the temporary speed limit message, and if so, executing the step 102; otherwise, ending.
The method of the embodiment allows multiple local workstations belonging to the same ATS system to issue temporary speed limit messages to multiple DSUs, avoids the defect that the temporary speed limit cannot be issued due to the fault of the local workstation alone, and further ensures the safety, stability and fault tolerance of the train control system in the CBTC operation mode.
In an alternative implementation, before the step 103, the method shown in fig. 2 further includes a step 103a, which is not shown in fig. 2 and is described below, as shown in fig. 3;
103a, sending a database version number to the ZC so that the ZC updates the database of the ZC according to the database version number.
Further, as shown in fig. 3, the method of the present embodiment (i.e. the method shown in fig. 1) may further include the following step 104 or step 104':
104. receiving the temporary speed limit information periodically uploaded by the ZC, and sending the received temporary speed limit information to a plurality of local workstations belonging to the same ATS system so that the plurality of local workstations send the temporary speed limit information to the ATS system for display;
or,
104', receiving the temporary speed limit information periodically uploaded by the ZC; and storing the temporary speed limit information uploaded by the ZC, and sending the stored temporary speed limit information to the plurality of local workstations belonging to the same ATS system so that the plurality of local workstations send the temporary speed limit information to the ATS system for display.
In practical applications, step 104 or step 104 'can be selected to be implemented, what is shown in fig. 3 is the content of step 104', which is not limited in this embodiment and is adjusted according to actual needs.
In addition, it should be noted that, in general, the local workstation sends the temporary speed limit message to the DSU, and multiple acknowledgements are required, as shown in fig. 3, the two acknowledgement processes are illustrated in this embodiment.
For example, after step 101 shown in fig. 2, the following steps shown in fig. 2 may also be included:
a01, replying a response to each local workstation which sends the temporary speed limit message; and the number of the first and second groups,
and A02, receiving the temporary speed limit messages sent by the plurality of local workstations again, and replying a response again.
In this embodiment, a temporary speed limit information sending protection mechanism in the existing system design is used to distinguish different local workstations and sent temporary speed limit information, and the accuracy of the temporary speed limit information sent in the system is ensured through secondary confirmation. And the safety and the stability of the system operation are improved.
Because the ATS belongs to the relevant information and map information for displaying the train operation in real time, the method can also comprise the following steps aiming at the section for canceling the speed limit:
b01, DSU receives the message of canceling the temporary speed limit sent by the plurality of local workstations, the message of canceling the temporary speed limit comprises: the identification of the local workstation sending the message, the identification of each DSU and the information of canceling the temporary speed limit corresponding to the identification of each DSU;
b02, DSU obtains the corresponding information of canceling temporary speed limit according to the DSU mark;
b03, sending the information of canceling the temporary speed limit to a ZC, so that the ZC controls the CBTC train to run according to the information of canceling the temporary speed limit.
In addition, an embodiment of the present invention further provides a DSU, where the DSU may include: a receiving unit 41, an acquiring unit 42, and a transmitting unit 43, as shown in fig. 4;
the receiving unit 41 is configured to receive temporary speed limit messages sent by multiple local workstations, where the temporary speed limit messages include: the temporary speed limit information comprises the identification of a local workstation which sends the temporary speed limit information, the identification of each DSU and the temporary speed limit information corresponding to the identification of each DSU; the DSU and the multi-site workstation belong to the same ATS system;
the acquiring unit 42 is configured to acquire temporary speed limit information corresponding to the DSU identifier according to the DSU identifier of the acquiring unit;
and a sending unit 43, configured to send the temporary speed limit information to the ZC, so that the ZC controls train operation according to the temporary speed limit information.
The DSU of this embodiment can execute the content of the above method embodiments, and the details of this embodiment are not described with reference to the above description.
The DSU of the embodiment is applied to the ATS system, allows multiple local workstations of the same ATS system to issue temporary speed limit messages to the multiple DSUs, and avoids the defect that the temporary speed limit cannot be issued due to the fault of the local workstation alone. The automation degree of the ATS system can be improved, and the safety and the stability of the ATS system are better improved.
In addition, an embodiment of the present invention further provides a CBTC system, including: a ZC and the DSU of any of the above embodiments, the DSU interacting with the ZC.
The CBTC system of the embodiment effectively utilizes the redundancy advantage of a plurality of local workstations, ensures that when one or a plurality of local workstations cannot normally operate due to reasons, the temporary speed limit information in the system can still be updated, further improves the stability and fault tolerance of the whole system, and reduces the safety risk brought to the whole system and each subsystem and equipment in the system due to various sudden failures.
Those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments instead of others, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments.
Those skilled in the art will appreciate that the steps of the embodiments may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some or all of the components according to embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (9)
1. A temporary speed limiting method based on multiple local workstations is characterized by comprising the following steps:
the DSU receives temporary speed limit messages sent by a plurality of local workstations, wherein the temporary speed limit messages comprise: the temporary speed limit information comprises the identification of a local workstation which sends the temporary speed limit information, the identification of each DSU and the temporary speed limit information corresponding to the identification of each DSU; the DSU and the plurality of local workstations belong to the same ATS system;
the DSU acquires temporary speed limit information corresponding to the DSU identification according to the identification of the DSU;
the DSU sends the temporary speed limit information to a ZC so that the ZC controls a CBTC train to run according to the temporary speed limit information;
wherein the method further comprises:
receiving temporary speed limit information periodically uploaded by the ZC, and sending the received temporary speed limit information to a plurality of local workstations belonging to the same ATS system so that the plurality of local workstations send the temporary speed limit information to the ATS system for display;
or,
receiving the temporary speed limit information periodically uploaded by the ZC;
and storing the temporary speed limit information uploaded by the ZC, and sending the stored temporary speed limit information to a plurality of local workstations belonging to the same ATS system so that the plurality of local workstations send the temporary speed limit information to the ATS system for display.
2. The method as claimed in claim 1, wherein before the step of transmitting the temporary speed limit information to the ZC, the method further comprises:
and sending the database version number to the ZC so that the ZC updates the database of the ZC according to the database version number.
3. The method as claimed in claim 1, wherein before the step of transmitting the temporary speed limit information to the ZC, the method further comprises:
and the DSU updates a database in the DSU according to the temporary speed limit information.
4. The method of claim 1, wherein after the step of the DSU receiving the temporary speed limit messages sent by the plurality of local workstations, the method further comprises:
the DSU replies a response to each local workstation which sends the temporary speed limit message; and the number of the first and second groups,
and the DSU receives the temporary speed limit messages sent by the plurality of local workstations again and replies a response again.
5. The method of claim 1, wherein before the step of the DSU obtaining the temporary speed limit information corresponding to the DSU identifier according to the DSU identifier of the DSU, the method further comprises:
the DSU searches whether the temporary speed-limiting message contains the DSU identification or not according to the DSU identification, if so, the DSU executes to acquire temporary speed-limiting information corresponding to the DSU identification according to the identification of the DSU;
otherwise, ending.
6. The method of claim 1, wherein the temporary speed limit message further comprises:
and the section mark to which the temporary speed limit information belongs.
7. The method of claim 1, further comprising:
the DSU receives a message for canceling the temporary speed limit sent by the plurality of local workstations, wherein the message for canceling the temporary speed limit comprises the following steps: the identification of the local workstation sending the message, the identification of each DSU and the information of canceling the temporary speed limit corresponding to the identification of each DSU;
the DSU acquires the information of canceling the temporary speed limit corresponding to the DSU identification according to the identification of the DSU;
and the DSU sends the information of canceling the temporary speed limit to the ZC so that the ZC controls the CBTC train to run according to the information of canceling the temporary speed limit.
8. A DSU, comprising:
a receiving unit, configured to receive temporary speed limit messages sent by multiple local workstations, where the temporary speed limit messages include: the temporary speed limit information comprises the identification of a local workstation which sends the temporary speed limit information, the identification of each DSU and the temporary speed limit information corresponding to the identification of each DSU; the DSU and the plurality of local workstations belong to the same ATS system;
the acquisition unit is used for acquiring temporary speed limit information corresponding to the DSU identifier according to the DSU identifier;
a sending unit, configured to send the temporary speed limit information to a ZC, so that the ZC controls train operation according to the temporary speed limit information;
the receiving unit is further configured to receive temporary speed limit information periodically uploaded by the ZC;
the sending unit is further configured to send the temporary speed limit information periodically uploaded by the ZC to multiple local workstations belonging to the same ATS system, so that the local workstations send the temporary speed limit information to the ATS system for display.
9. A CBTC system, comprising: ZC, its characterized in that still includes: the DSU of claim 8, the DSU interacting with the ZC.
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| CN201611127687.0A CN106515796B (en) | 2016-12-09 | 2016-12-09 | It is a kind of based on the mostly temporary speed-limiting method and DSU of work station now |
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| CN111232025B (en) * | 2018-11-28 | 2021-06-18 | 比亚迪股份有限公司 | Temporary speed limit management method and system, zone controller and train signal system |
| CN111376952B (en) * | 2018-12-29 | 2022-06-07 | 交控科技股份有限公司 | Double-row bit library storage method based on full-automatic operation without CG |
| CN112678027B (en) * | 2020-12-31 | 2022-09-30 | 卡斯柯信号有限公司 | Temporary train speed limit management method and system |
| CN113911180B (en) * | 2021-11-16 | 2024-04-26 | 交控科技股份有限公司 | Temporary speed limit management method, device, electronic equipment and computer program product |
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