CN103632557A - VMS event information publishing method and apparatus - Google Patents

VMS event information publishing method and apparatus Download PDF

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Publication number
CN103632557A
CN103632557A CN201310690600.0A CN201310690600A CN103632557A CN 103632557 A CN103632557 A CN 103632557A CN 201310690600 A CN201310690600 A CN 201310690600A CN 103632557 A CN103632557 A CN 103632557A
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event
vms
information
display device
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CN103632557B (en
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关积珍
李要娜
刘静
王云玲
熊娟
吴萌
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BEIJING STONE INTELLIGENT TRAFFIC SYSTEM INTEGRATION Co Ltd
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BEIJING STONE INTELLIGENT TRAFFIC SYSTEM INTEGRATION Co Ltd
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Abstract

The invention discloses a velocity measuring system (VMS) information publishing method and an apparatus, for automatically selecting VMS, to realize self-organization publishing of event information and improve handling efficiency, wherein the VMS event information publishing method comprises the steps of acquiring event information; determining event type and event grade of an event according to the event information; searching corresponding information publishing range and publishing time length in a predefined event information conversion table according to the determined event type and event grade, wherein the event information conversion table shows corresponding relation of the event type and the event grade with the information publishing range and the publishing time length; according to the searched information publishing range, selecting VMS display equipment meeting a preset condition; and publishing the event information on the selected VMS display equipment within the publishing time length.

Description

A kind of VMS event information dissemination method and device
Technical field
The present invention relates to modern traffic control and inductive technology field, relate in particular to a kind of VMS event information dissemination method and device.
Background technology
For alleviating day by day serious urban traffic blocking, need to motor vehicle go on a journey regulation and control, the vehicle science in the section that blocks up is shunted, and rationally induce passerby and select optimal path to spend the minimum travel time and to take minimum path resource.Existing urban traffic guidance information issue and control system are generally based on sensor device Real-time Collection traffic flow datas such as RTMS, coil checker, video detectors, processing and the analysis of these data process control centers, then issue to traveler with various ways such as word, figure, voice.Induction information issue and the control system of widespread use is at present the issue of VMS induction information and control system.Existing urban road VMS information issuing system generally consists of central control system, communication system and outfield VMS display device three parts.Central control system is realized the functions such as transport information processing, induction information generation, induction information issuing control, system management, communication system realizes the transmission releasing news, and the outfield VMS display device that is arranged on urban road is realized the issue demonstration of guidance information.
VMS adopts figure, word, figure to add three kinds of forms of word conventionally, shows the information such as road conditions, traffic events, traffic control measure.In road network, during certain road generation event, conventionally adopt written form to issue by VMS display device.In prior art, determined the coverage of event and affected duration, and issue by corresponding VMS display device by managerial personnel, it is very large that this makes existing VMS information issuing method affected by artificial subjective factor, and treatment effeciency is low.
Summary of the invention
The embodiment of the present invention provides a kind of VMS event information dissemination method and device, and in order to automatically to choose VMS, the self-organization of realization event information issue, improves treatment effeciency.
The embodiment of the present invention provides a kind of VMS event information dissemination method, comprising:
Obtain event information;
According to described event information, determine event type and the event class of event;
According to the event type of determining and event class, from predefined event information conversion table, search corresponding information scope of release and issue duration, described event information conversion table is the corresponding relation between event type and event class and information scope of release and issue duration;
According to the information scope of release finding, select to meet pre-conditioned VMS display device;
In described issue duration, on the VMS display device of selecting, issue described event information.
The embodiment of the present invention provides a kind of VMS event information distributing device, comprising:
Acquiring unit, for obtaining event information;
Determining unit, for according to described event information, determines event type and the event class of event;
Search unit, event type and the event class for basis, determined, from predefined event information conversion table, search corresponding information scope of release and issue duration, described event information conversion table is the corresponding relation between event type and event class and information scope of release and issue duration;
Selected cell, for according to the information scope of release finding, selects to meet pre-conditioned VMS display device;
Release unit in described issue duration, is issued described event information on the VMS display device of selecting.
The VMS event information dissemination method that the embodiment of the present invention provides, when on road, event occurs, obtain event information, according to the event information obtaining, determine event type and the event class of event, and from predefined event information conversion table, search corresponding information scope of release and issue duration, according to information scope of release, select the VMS display device satisfying condition to issue in the issue duration of determining, said process is without artificial participation, thereby realized the self-organization issue of event information, improved the treatment effeciency of the Word message issue of event.
Other features and advantages of the present invention will be set forth in the following description, and, partly from instructions, become apparent, or understand by implementing the present invention.Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in the instructions write, claims and accompanying drawing.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 a is in the embodiment of the present invention, has the angle of annexation section and current section E01;
Fig. 1 b is in the embodiment of the present invention, without the angle of annexation section and current section E01;
Fig. 2 is in the embodiment of the present invention, the implementing procedure schematic diagram of VMS event information dissemination method;
Fig. 3 is in the embodiment of the present invention, determines the implementing procedure schematic diagram of each VMS display device induction scope section list;
Fig. 4 is in the embodiment of the present invention, determines the implementing procedure schematic diagram of events affecting scope section list;
Fig. 5 is in the embodiment of the present invention, selects to meet the implementing procedure schematic diagram of pre-conditioned VMS display device;
Fig. 6 is in the embodiment of the present invention, the structural representation of VMS event information distributing device.
Embodiment
In order to realize the automatic issue of VMS event information, improve the treatment effeciency of the Word message issue of event, the embodiment of the present invention provides a kind of VMS event information dissemination method and device.
Below in conjunction with Figure of description, the preferred embodiments of the present invention are described, be to be understood that, preferred embodiment described herein is only for description and interpretation the present invention, be not intended to limit the present invention, and in the situation that not conflicting, embodiment and the feature in embodiment in the present invention can combine mutually.
In the embodiment of the present invention, by setting up node-segmental arc model, describe city road network, section attribute represents by segmental arc weights, and its formalization is expressed as:
<math> <mfenced open='{' close='' separators=' '> <mtable> <mtr> <mtd> <mi>G</mi> <mo>=</mo> <mrow> <mo>(</mo> <mi>V</mi> <mo>,</mo> <mi>E</mi> <mo>,</mo> <mi>W</mi> <mo>)</mo> </mrow> </mtd> </mtr> <mtr> <mtd> <mi>V</mi> <mo>=</mo> <mo>{</mo> <msub> <mi>V</mi> <mi>i</mi> </msub> <mo>|</mo> <mn>0</mn> <mo>&amp;le;</mo> <mi>i</mi> <mo>&amp;le;</mo> <mi>n</mi> <mo>-</mo> <mn>1</mn> <mo>,</mo> <mi>n</mi> <mo>&amp;GreaterEqual;</mo> <mn>1</mn> <mo>|</mo> <mo>}</mo> </mtd> </mtr> <mtr> <mtd> <mtext>E={e|e=&lt;i,j>,i,j&amp;Element;V,i&amp;NotEqual;j|}</mtext> </mtd> </mtr> </mtable> <mtext></mtext> </mfenced></math>
Wherein, G represents road network; V is the node set of non-NULL, and i is node, and n is nodal point number;
E is oriented segmental arc collection, represents the oriented section set of road network; W is segmental arc power collection, represents the weights of the oriented segmental arc of road network.It should be noted that, the section of mentioning in the present invention all refers to oriented section.
Contextual definition between road network key element:
Whether according to current section, be connected with other nodes, section, the relation between section is divided into has annexation and without annexation.There is annexation section only to refer to that current section and other sections are end to end situations.Only have starting point, terminal and this section in section to have annexation.In actual road network, represented between section and section, crossing, whether to there is connected relation.
Current section and other section shortest paths, refer to from current section, experiences minimum section and count to the path that reaches target section.
The shortest path nodal point number in current section and other sections, refers to from current section, experiences minimum section and counts to and reach the nodal point number that the path in target section comprises.
The angle in current section and other sections, refers to that current road segment end extended line and other section starting point extended lines intersect the anticlockwise angle forming.Fig. 1 a and Fig. 1 b have shown respectively have annexation section and without the angle account form of annexation section and current section E01.
The downstream road section in current section, if refer to, the angle in current section and other sections is α, all
Figure BDA0000439069040000042
other sections are all the downstream road section in current section.In actual road network, refer to VMS(Variable Message Sign, changeable-message sign) downstream road section in section, place.The section, upstream in current section, can ask the downstream road section that turns to section, then these downstream road section are turned to by current section starting point is turned to, and obtains the section, upstream in current section.
In the embodiment of the present invention, content according to the event information of issue, is divided into nine classes by event information: inclement weather information, disabled vehicle information, management and control information, the information that detours, construction information, traffic accident information, advertisement information, congestion information and out of Memory.
In the embodiment of the present invention, can be, but not limited to above each class event information to be divided into three grades according to event class (R), the event information of each grade under each classification scope of release that correspondence is different respectively and issue duration, scope of release (N ') is incident section and the shortest path nodal point number in influenced section farthest, and this event information of issue duration (T) is i.e. converted to the duration showing on VMS after Word message.According to the cluster analysis of event information issue history library, determine the scope of release (N ') of different event type different event grade and issue duration (T), setting up accordingly event information conversion table as shown in table 1:
Table 1
Figure BDA0000439069040000051
Figure BDA0000439069040000061
During concrete enforcement, its corresponding scope of release of the event information of different classes of different brackets and issue duration can be identical, but corresponding scope of release and the issue duration of event information of different brackets under same classification should be different.
In actual road network, for example there is traffic events that the section, upstream in incident section occurs, often affects, with the crossing quantity comprising between incident section and influenced section, weigh the coverage of event, the section, upstream that the crossing quantity comprising between every and incident section is less than above-mentioned quantity is all influenced section.
As can be seen from Table 1, the principal element that affects event information issue is scope of release and the issue duration of event information.Event class and scope of release and the positive correlation of issue duration.Event class is higher, and scope of release and issue duration are larger; Otherwise, less.The crossing quantity negative correlation comprising between influence degree and incident section and influenced section.The crossing quantity comprising between incident section and influenced section is more, and section events affecting degree is less; Otherwise, larger.Accordingly, in the embodiment of the present invention, according to two factors of crossing, the section quantity comprising between event class, incident section and influenced section, set up the model that is subject to events affecting section, to choose, gathered by the section of event influence degree maximum.The model of setting up is as follows: wherein, E is oriented segmental arc collection, represents the oriented section set of road network; R represents event type and respective level; W' ∈ N; N' ij∈ N, and W' presentation of events grade weights, N' ijthat section and arbitrary section E occur event ijbetween shortest path on the nodal point number that comprises, there is the crossing quantity comprising between section and influenced section in presentation of events.
Based on this, as shown in Figure 2, the implementing procedure schematic diagram of the VMS event information dissemination method providing for the embodiment of the present invention, can comprise the following steps:
S201, obtain event information;
S202, according to described event information, determine event type and the event class of event;
During concrete enforcement, when event occurs, read event type and the event class of event information definite event, to determine scope of release and the issue duration of this event information according to temporal information conversion table.
Event type and event class that S203, basis are determined are searched corresponding information scope of release and issue duration from predefined event information conversion table;
Concrete, event information conversion table can be as shown in table 1, and it is the corresponding relation between event type and event class and information scope of release and issue duration;
The information scope of release that S204, basis find, selects to meet pre-conditioned VMS display device;
S205, issue duration in, on the VMS display device of selecting, issue described event information.
Wherein, in step S204, can be according to selecting to meet pre-conditioned VMS equipment with method: for each the VMS display device arranging in road network, determine the induction scope section list of this VMS display device; According to the information scope of release finding, determine the section list of events affecting scope; Each section that section list comprises for events affecting scope, judges whether this section belongs to the section that the induction scope section list of arbitrary VMS display device comprises; If so, determine that the VMS display device under this section is to meet pre-conditioned VMS equipment.
Concrete, as shown in Figure 3, can determine according to following steps the induction range list of each VMS equipment:
S301, determine that section, VMS display device place is current section;
S302, access has a section of annexation with current section according to the order of sequence;
S303, judge the whether accessed mistake in this section, if so, execution step S304, otherwise execution step S305;
Whether S304, judgement and current section have each section of annexation all accessed, if so, and execution step S310, otherwise, execution step S302;
S305, this section are set to access;
S306, judge whether this section is the downstream road section in section, VMS display device place, if so, execution step S307, otherwise, execution step S302;
S307, judge on this section whether have other VMS display device, if so, execution step S302, otherwise, carry out S308;
S308, continuation judge whether the critical function section quantity comprising on the shortest path between this section and section, VMS display device place is less than preset value, if so, and execution step S309, otherwise, execution step S302;
S309, this section is added in the section list of induction scope;
S310, judge that whether each section that the section list of induction scope comprises is all accessed, if so, flow process finishes, otherwise, execution step S311;
S311, access each section that the section list of induction scope comprises according to the order of sequence, determine that this section is current section, and perform step S302.
During concrete enforcement, in event information, can also comprise incident road section information, based on this, as shown in Figure 4, can determine the section list of events affecting scope according to following steps:
S401, determine the section that turns in incident section, determine that this turns to section is current section;
S402, read a section that has annexation with current section according to the order of sequence;
S403, judge that whether this section is accessed, if so, execution step S404, otherwise, execution step S405;
Whether S404, judgement and current section have all sections of annexation all accessed, if so, and execution step S409, otherwise, execution step S402;
S405, this section are set to access;
S406, judge whether this section is the downstream road section that turns to incident section, if so, execution step S407, otherwise execution step S402;
S407, judge this section and turn to the node quantity that the shortest path between incident section comprises whether to be no more than preset value, if so, execution step S408, otherwise, execution step S402;
S408, this section is added to the list of primary event coverage;
S409, judge that whether the section that the list of primary event coverage comprises is all accessed, if so, execution step S410, otherwise, execution step S411;
S410, each section comprising in the section list of primary event coverage is turned to, obtain the section list of events affecting scope, flow process finishes.
S411, access the section that the section list of primary event coverage comprises according to the order of sequence, determine that this section is current section, and perform step S402.
Based on above-mentioned VMS induction scope section list and the section list of events affecting scope of determining, as shown in Figure 5, can select to meet pre-conditioned VMS display device according to step:
S501, for each VMS display device, read the induction scope section list of this VMS display device;
S502, be that each VMS display device adds VMS sign, form VMS identification list;
Wherein, VMS sign can be, but not limited to the number information into VMS display device.
S503, read events affecting range list;
S504, a VMS who accesses in VMS identification list according to the order of sequence identify;
S505, judge whether accessed mistake of this VMS sign, if so, execution step S509, otherwise, execution step S506;
S506, this VSM sign is set to and is accessed;
S507, judge whether the section list of induction scope and the section list of events affecting scope that this VMS identifies corresponding VMS equipment comprise same section, if so, execution step S508, otherwise, execution step S504;
S508, this VMS sign is added in the VMS list of event information issue;
S509, judge whether each VMS sign comprising in VMS identification list all accessed, if so, execution step S510 otherwise, execution step S504;
S510, determine that it is the VMS display device satisfying condition that the VMS comprising in the VMS list of event information issue identifies corresponding VMS display device.
During concrete enforcement, after having selected the VMS display device satisfying condition, event information is issued on the VMS display device of selecting.
Based on same inventive concept, a kind of VMS event information distributing device is also provided in the embodiment of the present invention, because the principle that said apparatus is dealt with problems is similar to VMS event information dissemination method, so the enforcement of said apparatus can, referring to the enforcement of method, repeat part and repeat no more.
As shown in Figure 6, the structural representation of the VMS event information distributing device providing for the embodiment of the present invention, comprising:
Acquiring unit 601, for obtaining event information;
Determining unit 602, for the event information obtaining according to acquiring unit 601, determines event type and the event class of event;
Search unit 603, for event type and the event class of determining according to determining unit 602, from predefined event information conversion table, search corresponding information scope of release and issue duration, described event information conversion table is the corresponding relation between event type and event class and information scope of release and issue duration;
Selected cell 604, for according to searching the information scope of release that unit 603 finds, selects to meet pre-conditioned VMS display device;
Release unit 605, in issue duration, issues described event information on the VMS display device of selecting at selected cell 604.
During concrete enforcement, selected cell 604, can comprise:
First determines subelement, for each the VMS display device arranging for road network, determines the induction scope section list of this VMS display device;
Second determines subelement, for according to the information scope of release finding, determines the section list of events affecting scope;
Judgment sub-unit, for for each VMS display device, judges whether the induction scope section list of this VMS display device and the section list of events affecting scope comprise same section;
The 3rd determines subelement, for when judgment result is that of described judgment sub-unit is, determines that this VMS display device is to meet pre-conditioned VMS equipment.
Wherein, first determines subelement, specifically for determining in accordance with the following methods the induction range list of each VMS display device: determine that section, VMS display device place is current section, and perform step A1~A6:A1, for having each section of annexation with current section, judge that whether this section is accessed, if not, execution step A2, if so, flow process finishes; A2, this section of mark are for accessing; A3, judge whether this section is the downstream road section in section, described VMS display device place, if so, performs step A4, and if not, flow process finishes; A4, judge on this section whether have other VMS display device, if so, flow process finishes, if not, and execution step A5; A5, continuation judge whether the critical function section quantity comprising on the shortest path between this section and section, described VMS display device place is less than the first preset value, if so, performs step A6, and if not, flow process finishes; A6, this section is added in described induction scope section list; And each section comprising for described induction scope section list, determine that successively this section is current section, and perform step A1~A6.
During concrete enforcement, in event information, comprise incident road section information; And second determine subelement, specifically for determining in accordance with the following methods the section list of events affecting scope: according to described incident road section information, determine the section that turns in incident section, described in determining, turning to incident section is current section, and perform step B1~B5:B1, for having each section of annexation with described current section, judge that whether this section accessed, if not, execution step B2, if so, flow process finishes; B2, this section of mark are for accessing; B3, judge that this section turns to the downstream road section in incident section described in being whether, if so, perform step B4, if not, flow process finishes; B4, judge this section and described in turn to the node quantity that the shortest path between incident section comprises whether to be less than the second preset value, if so, perform step B5, if not, flow process finishes; B5, this section is added in the section list of primary event coverage; And for each section comprising in described primary event coverage section list, determine that this section is current section, and perform step B1~B5; Each section comprising in described primary event coverage section list is turned to, obtain the section list of events affecting scope.
The VMS event information dissemination method that the embodiment of the present invention provides, when on road, event occurs, obtain event information, according to the event information obtaining, determine event type and the event class of event, and from predefined event information conversion table, search corresponding information scope of release and issue duration, according to information scope of release, select the VMS display device satisfying condition to issue in the issue duration of determining, said process is without artificial participation, thereby realized the self-organization issue of event information, improved the treatment effeciency of the Word message issue of event.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disk memory, CD-ROM, optical memory etc.) of computer usable program code one or more.
The present invention is with reference to describing according to process flow diagram and/or the block scheme of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block scheme each flow process and/or the flow process in square frame and process flow diagram and/or block scheme and/or the combination of square frame.Can provide these computer program instructions to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computing machine or other programmable data processing device is produced for realizing the device in the function of flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computing machine or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame on computing machine or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (8)

1. a VMS event information dissemination method, is characterized in that, comprising:
Obtain event information;
According to described event information, determine event type and the event class of event;
According to the event type of determining and event class, from predefined event information conversion table, search corresponding information scope of release and issue duration, described event information conversion table is the corresponding relation between event type and event class and information scope of release and issue duration;
According to the information scope of release finding, select to meet pre-conditioned changeable-message sign VMS display device;
In described issue duration, on the VMS display device of selecting, issue described event information.
2. the method for claim 1, is characterized in that, according to the information scope of release finding, selects to meet pre-conditioned VMS display device, specifically comprises:
For each the VMS display device arranging in road network, determine the induction scope section list of this VMS display device; And
According to the information scope of release finding, determine the section list of events affecting scope;
For each VMS display device, judge whether the induction scope section list of this VMS display device and the section list of events affecting scope comprise same section;
If so, determine that this VMS display device is to meet pre-conditioned VMS equipment.
3. method as claimed in claim 2, is characterized in that, determines in accordance with the following methods the induction range list of each VMS display device:
Determine that section, VMS display device place is current section, and perform step A1~A6:
A1, for having each section of annexation with current section, judge that whether this section accessed, if not, execution step A2, if so, flow process finishes;
A2, this section of mark are for accessing;
A3, judge whether this section is the downstream road section in section, VMS display device place, if so, performs step A4, and if not, flow process finishes;
A4, judge on this section whether have other VMS display device, if so, flow process finishes, if not, and execution step A5;
A5, continuation judge whether the critical function section quantity comprising on the shortest path between this section and section, described VMS display device place is less than the first preset value, if so, performs step A6, and if not, flow process finishes;
A6, this section is added in described induction scope section list; And
Each section comprising for described induction scope section list, determines that successively this section is current section, and performs step A1~A6.
4. method as claimed in claim 2, is characterized in that, comprises incident road section information in described event information; And
According to the information scope of release finding, determine the section list of events affecting scope, specifically comprise:
According to described incident road section information, determine the section that turns in incident section, described in determining, turning to incident section is current section, and performs step B1~B5:
B1, for having each section of annexation with described current section, judge that whether this section accessed, if not, execution step B2, if so, flow process finishes;
B2, this section of mark are for accessing;
B3, judge that this section turns to the downstream road section in incident section described in being whether, if so, perform step B4, if not, flow process finishes;
B4, judge this section and described in turn to the node quantity that the shortest path between incident section comprises whether to be no more than the second preset value, if so, perform step B5, if not, flow process finishes;
B5, this section is added in the section list of primary event coverage;
For each section comprising in described primary event coverage section list, determine that this section is current section, and perform step B1~B5;
Each section comprising in described primary event coverage section list is turned to, obtain the section list of events affecting scope.
5. a VMS event information distributing device, is characterized in that, comprising:
Acquiring unit, for obtaining event information;
Determining unit, for according to described event information, determines event type and the event class of event;
Search unit, event type and the event class for basis, determined, from predefined event information conversion table, search corresponding information scope of release and issue duration, described event information conversion table is the corresponding relation between event type and event class and information scope of release and issue duration;
Selected cell, for according to the information scope of release finding, selects to meet pre-conditioned VMS display device;
Release unit in described issue duration, is issued described event information on the VMS display device of selecting.
6. device as claimed in claim 5, is characterized in that, described selected cell, comprising:
First determines subelement, for each the VMS display device arranging for road network, determines the induction scope section list of this VMS display device;
Second determines subelement, for according to the information scope of release finding, determines the section list of events affecting scope;
Judgment sub-unit, for for each VMS display device, judges whether the induction scope section list of this VMS display device and the section list of events affecting scope comprise same section;
The 3rd determines subelement, for when judgment result is that of described judgment sub-unit is, determines that this VMS display device is to meet pre-conditioned VMS equipment.
7. device as claimed in claim 6, is characterized in that,
Described first determines subelement, specifically for determining in accordance with the following methods the induction range list of each VMS display device: determine that section, VMS display device place is current section, and perform step A1~A6:A1, for having each section of annexation with current section, judge that whether this section is accessed, if not, execution step A2, if so, flow process finishes; A2, this section of mark are for accessing; A3, judge whether this section is the downstream road section in section, described VMS display device place, if so, performs step A4, and if not, flow process finishes; A4, judge on this section whether have other VMS display device, if so, flow process finishes, if not, and execution step A5; A5, continuation judge whether the critical function section quantity comprising on the shortest path between this section and section, described VMS display device place is less than the first preset value, if so, performs step A6, and if not, flow process finishes; A6, this section is added in described induction scope section list; And each section comprising for described induction scope section list, determine that successively this section is current section, and perform step A1~A6.
8. device as claimed in claim 6, is characterized in that, comprises incident road section information in described event information; And
Described second determines subelement, specifically for determining in accordance with the following methods the section list of events affecting scope: according to described incident road section information, determine the section that turns in incident section, described in determining, turning to incident section is current section, and perform step B1~B5:B1, for having each section of annexation with described current section, judge that whether this section accessed, if not, execution step B2, if so, flow process finishes; B2, this section of mark are for accessing; B3, judge that this section turns to the downstream road section in incident section described in being whether, if so, perform step B4, if not, flow process finishes; B4, judge this section and described in turn to the node quantity that the shortest path between incident section comprises whether to be less than the second preset value, if so, perform step B5, if not, flow process finishes; B5, this section is added in the section list of primary event coverage; And for each section comprising in described primary event coverage section list, determine that this section is current section, and perform step B1~B5; Each section comprising in described primary event coverage section list is turned to, obtain the section list of events affecting scope.
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