CN103530370A - Method and system for visualization deduction based on electronic map - Google Patents
Method and system for visualization deduction based on electronic map Download PDFInfo
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Abstract
The invention discloses a method and system for visualization deduction based on an electronic map. The method comprises the steps that after a deduction server receives a visualization deduction instruction, and longitude and latitude information and linkage information of deduction resources related to a deduction path are read from a buffering server and are in local cache according to the name of the related deduction path in the electronic map; then, a simulation motorcade is started, and the simulation motorcade advances from the starting point of the deduction path along the deduction path towards the end point of the deduction path; in the advancing process, the longitude and latitude of the current advancing position of the simulation motorcade are used as base points, the longitude and latitude information and the linkage information of each deduction resource in a set longitude and latitude range in front of the base points are read from the local cache, linkage is carried out on corresponding resource servers to obtain the deduction resources according to the read linkage information of each deduction resource, and the deduction resources are displayed in the electronic map according to the longitude and latitude information of the deduction resources. Therefore, path security work is more convenient and more flexible.
Description
Technical Field
The invention relates to a geographic information technology, in particular to a visual deduction method and a visual deduction system based on an electronic map.
Background
In recent years, with the rapid development of economic construction and the continuous expansion of outward communication in China, important conferences held in China and held large-scale events are increasing. In order to ensure the smooth development of various conferences or activities, various security works of important routes of the conferences or activities are required to be made. However, the route security is wide in involved range, multiple in personnel and institutions, complex in condition and difficult to control.
At present, after determining the route of a meeting to be held or a held event, security work is usually taken on the range of the route; specifically, each related security unit related to the security route collects security measures in advance for the section of the security route within the range of the unit by using local resources (such as video monitoring data shot by a camera) and technical means, so as to provide an auxiliary decision for the early preparation of a conference or an activity; for example, A, B, C is a security unit related to a security route, and a security unit a can know in advance security facilities, traffic conditions, personnel information, and the like of a section of the security route within the range of the security unit according to resources in a local resource server of the security unit, and take security measures such as controlling specific personnel and setting a protective barrier for a critical section; similarly, the security unit B takes security measures according to the resources in the local resource server of the unit, and the security unit C takes security measures according to the resources in the local resource server of the unit.
However, resources in the resource server of each security unit cannot be uniformly shared and utilized among the security units, so that the resource utilization of each security unit is insufficient; moreover, each security unit only takes security measures for the sections of the security route within the range of the security unit, and the security units cannot share resources, so that security blind areas of the security route are easily caused; therefore, the route security work is not flexible and convenient.
Disclosure of Invention
The embodiment of the invention provides a visual deduction method and system based on an electronic map, so that route security work is more convenient and flexible.
According to an aspect of the present invention, there is provided an electronic map-based visualization deduction method, including:
after receiving a visual deduction instruction, the deduction server reads longitude and latitude information and link information of deduction resources related to the deduction route from the buffer server according to the name of the deduction route in the electronic map related to the visual deduction instruction, and the longitude and latitude information and the link information are cached locally;
the deduction server starts a simulated motorcade, and the simulated motorcade starts from the starting point of the deduction route and travels along the deduction route to the end point of the deduction route; in the advancing process, the deduction server takes the longitude and latitude of the current advancing position of the simulated motorcade as a base point, reads the longitude and latitude information and the link information of each deduction resource in a preset longitude and latitude range in front of the base point from a local cache, then links to a corresponding resource server according to the read link information of each deduction resource to obtain the deduction resource, and displays the deduction resource in the electronic map according to the longitude and latitude information of the deduction resource. Preferably, before the deduction server receives the visualization deduction instruction, the method further includes:
after receiving the route drawing instruction, the deduction server calls an information reading service interface provided by a map server, and transmits the latitude and longitude range related to the deduction route drawn in the electronic map by the user into the information reading service interface;
the information reading service interface acquires longitude and latitude information and connection information of deduction resources in the longitude and latitude range from each resource server according to the transmitted longitude and latitude range, and returns the longitude and latitude information and the connection information to the deduction server;
and the deduction server stores the received longitude and latitude information and the link information of the deduction resource into the buffer server together with a name which is input by a corresponding user aiming at the drawn deduction route.
Preferably, before the deduction server receives the route drawing instruction, the method further includes:
after receiving an electronic map display instruction, the deduction server calls an electronic map service interface provided by the map server and transmits the latitude and longitude range related to the electronic map display instruction into the electronic map service interface;
the electronic map service interface reads the data of the electronic map in the latitude and longitude range related to the electronic map display instruction from the map server, and displays the electronic map; and are
Reading the previously stored data of the derived route in the latitude and longitude range related to the electronic map display instruction from the map server, and displaying the data in the electronic map; and
after the deduction server receives the route drawing instruction, the method further comprises the following steps:
the deduction server calls a data storage service interface provided by the map server and transmits data of a new deduction route drawn by a user in the electronic map to the data storage service interface;
the data storage service interface stores data of a new derived route drawn by a user in the electronic map into the map server.
The longitude and latitude range related to the deduction route drawn by the user in the electronic map is specifically a range of 50-200 meters on two sides of the drawn deduction route.
The deduction resources specifically include video monitoring data.
According to another aspect of the present invention, there is also provided an electronic map-based visualization deduction system, including: the system comprises a deduction server, a buffer server and resource servers which are respectively arranged in various places; wherein,
the deduction server is used for reading longitude and latitude information and link information of deduction resources related to a deduction route from the buffer server according to the name of the deduction route in the electronic map related to the visual deduction instruction after receiving the visual deduction instruction; starting a simulation motorcade, wherein the simulation motorcade starts from the starting point of the deduction route and travels along the deduction route to the end point of the deduction route; in the advancing process, the deduction server takes the longitude and latitude of the current advancing position of the simulated motorcade as a base point, reads the longitude and latitude information and the link information of each deduction resource in a preset longitude and latitude range in front of the base point from a local cache, then links to a corresponding resource server according to the read link information of each deduction resource to obtain the deduction resource, and displays the deduction resource in the electronic map according to the longitude and latitude information of the deduction resource.
Further, the visualization deduction system further comprises: a map server; and
the deduction server is also used for calling an information reading service interface in the map server after receiving a route drawing instruction, and transmitting the longitude and latitude range related to the deduction route drawn in the electronic map by the user into the information reading service interface; the latitude and longitude information and the link information of the deduction resources returned by the information reading service interface are stored in the buffer server according to the name of the correspondingly drawn deduction route;
the information reading service interface is used for acquiring longitude and latitude information and connection information of the deduction resources in the longitude and latitude range from each resource server according to the transmitted longitude and latitude range, and returning the longitude and latitude information and the connection information to the deduction server.
Preferably, the deduction server is further configured to call an electronic map service interface provided by the map server after receiving the electronic map display instruction, and transmit the latitude and longitude range related to the electronic map display instruction into the electronic map service interface;
the electronic map service interface reads the data of the electronic map in the latitude and longitude range related to the electronic map display instruction from the map server, and displays the electronic map; reading the previously stored data of the derived route in the latitude and longitude range related to the electronic map display instruction from the map server, and displaying the data in the electronic map; and
the deduction server is also used for calling a data storage service interface provided by the map server after receiving a route drawing instruction, and transmitting data of a new deduction route drawn in the electronic map by a user to the data storage service interface;
the data storage service interface stores data of a new derived route drawn by a user in the electronic map into a map server.
The longitude and latitude range related to the deduction route drawn by the user in the electronic map is specifically a range of 50-200 meters on two sides of the drawn deduction route.
The deduction resources specifically include video monitoring data.
In the technical scheme of the invention, a deduction route corresponding to the security route is made on the electronic map in advance based on the electronic map; storing longitude and latitude information and link information of the deduction resources related to the deduction route into a buffer server corresponding to the name of the deduction route; after receiving the visual deduction instruction, the deduction server reads longitude and latitude information and link information of deduction resources related to the deduction route from the buffer server according to the name of the deduction route in the electronic map related to the visual deduction instruction; and then, the deduction server starts the simulated vehicle team to advance on the deduction route, and acquires corresponding deduction resources in the corresponding resource server in the advancing process to display in the electronic map. Therefore, each security unit can utilize the deduction resources in the remote resource servers of other security units and can also utilize the deduction resources in the local resource server of the unit to visually deduce the security routes, so that the resources of each security unit are fully utilized, the utilization rate of the resources of each security unit is improved, and the route security work is more convenient and flexible.
Drawings
Fig. 1 is an architecture diagram of a visualization deduction system according to an embodiment of the present invention;
FIG. 2 is a flowchart of a method for generating a derived route and data thereof according to an embodiment of the present invention;
fig. 3 is a flowchart of a visualization deduction method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings by way of examples of preferred embodiments. It should be noted, however, that the numerous details set forth in the description are merely for the purpose of providing the reader with a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.
As used in this application, the terms "module," "system," and the like are intended to include a computer-related entity, such as but not limited to hardware, firmware, a combination of hardware and software, or software in execution. For example, a module may be, but is not limited to: a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. For example, an application running on a computing device and the computing device may both be a module. One or more modules may reside within a process and/or thread of execution and a module may be localized on one computer and/or distributed between two or more computers.
The inventor of the present invention considers that the electronic map is a visual map displayed on an electronic screen through certain hardware or software based on a GIS (Geographic information system) platform and based on data of a map server by using a computer technology; therefore, the inventor of the present invention further considers that after determining the security routes of a meeting or an activity, if the resources related to the security routes are collected together based on the electronic map and visualized deduction is performed on the electronic map, the utilization rate of the resources of each security unit is greatly improved, and the route security work is convenient and flexible.
Based on the above thought, in the technical scheme of the invention, according to each security route of a meeting or an activity determined in advance, a deduction route corresponding to the security route is made on an electronic map in advance; basic information of the deduction resources related to the deduction route, such as longitude and latitude information and link information, is stored in a buffer server in advance corresponding to the name of the deduction route; the deduction software in the deduction server can start the simulation fleet to travel on the deduction route according to a pre-made deduction route which can be selected by a user from the electronic map, and the deduction resource related to the deduction route is read from the resource server and displayed in the electronic map, so that visual deduction is realized. Therefore, each security unit can utilize the deduction resources in the remote resource servers of other security units and can also utilize the deduction resources in the local resource server of the unit to visually deduce the security routes, so that the resources of each security unit are fully utilized, the utilization rate of the resources of each security unit is improved, and the route security work is more convenient and flexible.
The technical scheme of the invention is explained in detail in the following with the accompanying drawings. The architecture diagram of the electronic map-based visualization deduction system provided by the invention, as shown in fig. 1, includes a buffering server 101, a deduction server 102, and resource servers 103 respectively arranged in various regions.
The resource servers 103 are distributed in security units in various places, and specifically include local resource servers in the unit and remote resource servers in other security units; each resource server 103 stores derived resources of each security unit; the derived resources refer to various resources used by each security unit for route security work, and may be, for example, video monitoring data shot by a camera set by the security unit.
The buffer server 101 stores the name of each derived route and basic information of the derived resource related to the derived route corresponding to the name of the derived route, including: latitude and longitude information, link information, and names of deduction resources; the longitude and latitude information of the derived resource may specifically be longitude and latitude information of a geographic position of derived resource acquiring equipment set by a security unit, for example, longitude and latitude information of a geographic position of a camera set by a security unit; the link information of the derived resource may specifically include IP address information of a resource server storing the derived resource, and storage directory information of the derived resource in the resource server.
The deduction server 102 is installed with deduction software, and the deduction software can read basic information of deduction resources related to a deduction route from the buffer server 101 to be locally buffered according to a name of the deduction route in the electronic map related to the visualization deduction instruction after receiving the visualization deduction instruction sent by the user; and then, starting a simulated motorcade to perform visual deduction: in the process that the simulated motorcade travels from the starting point of the deduction route to the end point, the deduction resources in the corresponding resource server 103 are acquired and displayed in the electronic map according to the current travel position of the simulated motorcade, the link information and the latitude and longitude information of the deduction resources.
Further, the visualization deduction system may further include: a map server 104;
the map server 104 stores therein data of an electronic map, and data of a derived route drawn by a user in the electronic map; moreover, the map server 104 also provides an information reading service interface, an electronic map service interface and a data storage service interface; the map server is based on a general GIS platform in the prior art, expands a service interface in the GIS platform, and serves as a special GIS platform of the visual deduction system to support the route security work of the invention.
In fact, the deduction software of the deduction server 102 provides a deduction interface, through which the user can send the electronic map display instruction to the deduction software of the deduction server 102; after receiving an electronic map display instruction sent by a user, the deduction software of the deduction server 102 calls an electronic map service interface provided by the map server 104, and transmits a longitude and latitude range related to the electronic map display instruction into the electronic map service interface; the electronic map service interface reads the data of the electronic map in the latitude and longitude range related to the electronic map display instruction from the map server 104, and displays the electronic map; and reads the previously stored data of the derived route within the latitude and longitude range related to the electronic map display instruction from the map server 104, and displays the data in the electronic map.
In practical applications, the user may prepare a derived route corresponding to the security route in the electronic map in advance according to the extracted and determined security route of the meeting or the activity, and buffer and store the basic information of each derived resource related to the derived route in the resource server 103, where a flow of the specific method is as shown in fig. 2, and includes:
s201: after receiving the route drawing instruction, the deduction server 102 calls an information reading service interface provided by the map server 104, and transmits the latitude and longitude range related to the deduction route drawn by the user in the electronic map to the information reading service interface.
Specifically, the user may click on a route drawing button within the deduction interface, sending a route drawing instruction to the deduction server 102; after receiving the route drawing instruction, the deduction server 102 calls an information reading service interface provided by the map server 104, and transmits the latitude and longitude range related to the deduction route drawn in the electronic map displayed in the deduction interface by the user into the information reading service interface.
Moreover, after receiving the route drawing instruction, the deduction server 102 may also call a data storage service interface provided by the map server 104, and transmit data of a new deduction route drawn in the electronic map by the user to the data storage service interface; the data storage service interface stores data of a new derived route drawn by the user in the electronic map into the map server 104.
The method comprises the steps that a user can draw a deduction route in an electronic map displayed in a deduction interface, and can set a longitude and latitude range related to the deduction route drawn in the electronic map according to the requirement of route security work, namely, the longitude and latitude ranges within a set distance of two sides of the deduction route are set, for example, the user can manually set the ranges of 50-200 meters of the two sides of the deduction route to be the longitude and latitude range related to the deduction route in the electronic map displayed in the deduction interface;
moreover, the user can also set the type of the deduction data related to the deduction route, such as the video monitoring data type of a camera, or the data type of a unit person; after the deduction server 102 receives the route drawing instruction and calls the information reading service interface provided by the map server 104, the latitude and longitude range and the type of deduction resources related to the deduction route drawn by the user in the electronic map are transmitted to the information reading service interface.
S202: the information reading service interface acquires longitude and latitude information and link information of the derived resources within the longitude and latitude range from each resource server 103 according to the transmitted longitude and latitude range, and returns the longitude and latitude information and the link information to the deriving server 102.
Specifically, the information reading service interface provided by the map server 104 acquires longitude and latitude information and link information of the derived resources within the longitude and latitude range from each resource server 103 via the wide area network according to the introduced longitude and latitude range, and returns the longitude and latitude information and the link information to the derived server 102.
Further, if the deduction server 102 transmits the longitude and latitude range and the type of the deduction resource related to the deduction route drawn by the user in the electronic map to the information reading service interface, the information reading service interface acquires the longitude and latitude information and the link information of the deduction resource of the type within the longitude and latitude range from each resource server 103 through the wide area network according to the transmitted longitude and latitude range and the type of the deduction resource, and returns the information to the deduction server 102.
S203: the push server 102 stores the received longitude and latitude information and link information of the push resource in the cache server 101 in correspondence with the name of the push route input by the user for the drawn push route.
Specifically, the push server 102 stores the received longitude and latitude information and link information of the push resource, and the name of the push route input by the user for the drawn push route, into the cache server 101.
Based on the above visualization deduction system, the flowchart of the visualization deduction method provided by the present invention, as shown in fig. 3, specifically includes the following steps:
s301: after receiving the visualization deduction instruction, the deduction server 102 reads latitude and longitude information and link information of a deduction resource related to the deduction route from the buffer server 101 according to the name of the deduction route in the electronic map related to the visualization deduction instruction, and locally caches the latitude and longitude information and link information.
Specifically, the user may select a pre-made deduction route from the electronic map displayed in the deduction interface, click a visualization deduction button in the deduction interface, and send a visualization deduction instruction related to the name of the deduction route to the deduction software of the deduction server 102; after receiving the visualization deduction instruction, the deduction software in the deduction server 102 reads the latitude and longitude information and the link information of the deduction resource related to the deduction route from the buffer server 101 according to the name of the deduction route related to the visualization deduction instruction, and locally caches the latitude and longitude information and the link information.
S302: the deduction server 102 starts a simulated motorcade, and the simulated motorcade starts from the starting point of the deduction route, advances along the deduction route to the end point of the deduction route, and performs visual deduction.
Specifically, the deduction software of the deduction server 102 starts a simulated motorcade, and the simulated motorcade starts from the starting point of the deduction route and advances to the end point of the deduction route along the deduction route in the electronic map; in the advancing process, the deduction server 102 takes the longitude and latitude of the current advancing position of the simulated motorcade as a base point, reads the longitude and latitude information and the link information of each deduction resource in a longitude and latitude range set in front of the base point from a local cache, then links to the corresponding resource server 103 according to the read link information of each deduction resource to obtain the deduction resource, and displays the deduction resource in the electronic map according to the longitude and latitude information of the deduction resource. The longitude and latitude range set in front of the base point can be specifically set by technicians according to actual requirements. Because the longitude and latitude information and the link information of the deduction resources are stored in the buffer server 101 in advance, when the visual deduction is carried out, the longitude and latitude information and the link information of the deduction resources related to the deduction route of the visual deduction can be conveniently and quickly read out from the buffer server 101, and the deduction resources are obtained from the corresponding resource server 103 according to the link information of the deduction resources.
In the technical scheme of the invention, a deduction route corresponding to the security route is made on the electronic map in advance based on the electronic map; storing longitude and latitude information and link information of the deduction resources related to the deduction route into a buffer server corresponding to the name of the deduction route; after receiving the visual deduction instruction, the deduction server reads longitude and latitude information and link information of deduction resources related to the deduction route from the buffer server according to the name of the deduction route in the electronic map related to the visual deduction instruction; and then, the deduction server starts the simulated vehicle team to advance on the deduction route, and acquires corresponding deduction resources in the corresponding resource server in the advancing process to display in the electronic map. Therefore, each security unit can utilize the deduction resources in the remote resource servers of other security units and can also utilize the deduction resources in the local resource server of the unit to visually deduce the security routes, so that the resources of each security unit are fully utilized, the utilization rate of the resources of each security unit is improved, and the route security work is more convenient and flexible.
Those skilled in the art will appreciate that all or part of the steps in the method for implementing the above embodiments may be implemented by relevant hardware instructed by a program, and the program may be stored in a computer readable storage medium, such as: ROM/RAM, magnetic disk, optical disk, etc.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (10)
1. A visualization deduction method based on an electronic map comprises the following steps:
after receiving a visual deduction instruction, the deduction server reads longitude and latitude information and link information of deduction resources related to the deduction route from the buffer server according to the name of the deduction route in the electronic map related to the visual deduction instruction, and the longitude and latitude information and the link information are cached locally;
the deduction server starts a simulated motorcade, and the simulated motorcade starts from the starting point of the deduction route and travels along the deduction route to the end point of the deduction route; in the advancing process, the deduction server takes the longitude and latitude of the current advancing position of the simulated motorcade as a base point, reads the longitude and latitude information and the link information of each deduction resource in a preset longitude and latitude range in front of the base point from a local cache, then links to a corresponding resource server according to the read link information of each deduction resource to obtain the deduction resource, and displays the deduction resource in the electronic map according to the longitude and latitude information of the deduction resource.
2. The method of claim 1, wherein before the deriving server receives the visualization deriving instruction, further comprising:
after receiving the route drawing instruction, the deduction server calls an information reading service interface provided by a map server, and transmits the latitude and longitude range related to the deduction route drawn in the electronic map by the user into the information reading service interface;
the information reading service interface acquires longitude and latitude information and connection information of deduction resources in the longitude and latitude range from each resource server according to the transmitted longitude and latitude range, and returns the longitude and latitude information and the connection information to the deduction server;
and the deduction server stores the received longitude and latitude information and the link information of the deduction resource into the buffer server together with a name which is input by a corresponding user aiming at the drawn deduction route.
3. The method of claim 2, wherein prior to the deduction server receiving the route drawing instructions, further comprising:
after receiving an electronic map display instruction, the deduction server calls an electronic map service interface provided by the map server and transmits the latitude and longitude range related to the electronic map display instruction into the electronic map service interface;
the electronic map service interface reads the data of the electronic map in the latitude and longitude range related to the electronic map display instruction from the map server, and displays the electronic map; and are
Reading the previously stored data of the derived route in the latitude and longitude range related to the electronic map display instruction from the map server, and displaying the data in the electronic map; and
after the deduction server receives the route drawing instruction, the method further comprises the following steps:
the deduction server calls a data storage service interface provided by the map server and transmits data of a new deduction route drawn by a user in the electronic map to the data storage service interface;
the data storage service interface stores data of a new derived route drawn by a user in the electronic map into the map server.
4. The method according to claim 3, wherein the longitude and latitude range of the derived route drawn by the user in the electronic map is 50-200 m on both sides of the derived route.
5. The method according to any of claims 1-4, wherein the derived resources comprise in particular video surveillance data.
6. An electronic map-based visualization deduction system, comprising: the system comprises a deduction server, a buffer server and resource servers which are respectively arranged in various places; wherein,
the deduction server is used for reading longitude and latitude information and link information of deduction resources related to a deduction route from the buffer server according to the name of the deduction route in the electronic map related to the visual deduction instruction after receiving the visual deduction instruction; starting a simulation motorcade, wherein the simulation motorcade starts from the starting point of the deduction route and travels along the deduction route to the end point of the deduction route; in the advancing process, the deduction server takes the longitude and latitude of the current advancing position of the simulated motorcade as a base point, reads the longitude and latitude information and the link information of each deduction resource in a preset longitude and latitude range in front of the base point from a local cache, then links to a corresponding resource server according to the read link information of each deduction resource to obtain the deduction resource, and displays the deduction resource in the electronic map according to the longitude and latitude information of the deduction resource.
7. The system of claim 6, further comprising: a map server; and
the deduction server is also used for calling an information reading service interface in the map server after receiving a route drawing instruction, and transmitting the longitude and latitude range related to the deduction route drawn in the electronic map by the user into the information reading service interface; the latitude and longitude information and the link information of the deduction resources returned by the information reading service interface are stored in the buffer server according to the name of the correspondingly drawn deduction route;
the information reading service interface is used for acquiring longitude and latitude information and connection information of the deduction resources in the longitude and latitude range from each resource server according to the transmitted longitude and latitude range, and returning the longitude and latitude information and the connection information to the deduction server.
8. The system of claim 7,
the deduction server is also used for calling an electronic map service interface provided by the map server after receiving the electronic map display instruction, and transmitting the latitude and longitude range related to the electronic map display instruction into the electronic map service interface;
the electronic map service interface reads the data of the electronic map in the latitude and longitude range related to the electronic map display instruction from the map server, and displays the electronic map; reading the previously stored data of the derived route in the latitude and longitude range related to the electronic map display instruction from the map server, and displaying the data in the electronic map; and
the deduction server is also used for calling a data storage service interface provided by the map server after receiving a route drawing instruction, and transmitting data of a new deduction route drawn in the electronic map by a user to the data storage service interface;
the data storage service interface stores data of a new derived route drawn by a user in the electronic map into a map server.
9. The method according to claim 8, wherein the longitude and latitude range of the derived route drawn by the user in the electronic map is 50-200 m on both sides of the derived route.
10. The method according to any of claims 6-9, wherein the derived resources comprise in particular video surveillance data.
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CN201310479326.2A CN103530370B (en) | 2013-10-14 | 2013-10-14 | Method and system for visualization deduction based on electronic map |
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CN111785005A (en) * | 2019-04-04 | 2020-10-16 | 青岛海信网络科技股份有限公司 | Method and device for analyzing exercise effect of traffic guard task |
CN111832187A (en) * | 2020-07-24 | 2020-10-27 | 宁夏政安信息科技有限公司 | Realization method for simulating and demonstrating secret stealing means |
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