CN105357697A - Quality detection method and apparatus for GSM-R wireless network - Google Patents
Quality detection method and apparatus for GSM-R wireless network Download PDFInfo
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Abstract
The embodiment of the invention provides a quality detection method and apparatus for a GSM-R (global system of mobile communication for railways) wireless network. The method comprises the steps: obtaining multiple data packets collected by multiple vehicle communication devices, the data packets including wireless network parameter information and information about collection places of the wireless network parameter information; determining, in the multiple data packets, one data packet the collection place of which belongs to a to-be-detected line, separately determining, among multiple sections of the to-be-detected line, sections corresponding to the data packet of the to-be-detected line, and obtaining data packets corresponding to the sections; and according to the wireless network parameter information of the data packets corresponding to the sections, arranging and combining the wireless network parameter information of the same type in the data packets corresponding to the sections, obtaining comprehensive wireless network parameter information corresponding to the sections, and displaying the comprehensive wireless network parameter information corresponding to the sections to users. In this way, users can determine an accurate optimization scheme according to comprehensive quality parameters of sections of a to-be-detected line.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a method and a device for detecting the quality of a GSM-R wireless network.
Background
A global system for mobile communications for railroads (GSM-R) is a wireless data communication system designed specifically for locomotives operating on railroads.
The GSM-R wireless network comprises vehicle-mounted communication equipment arranged on a locomotive, the vehicle-mounted communication equipment provides communication service for the locomotive, and in the running process of the locomotive, conditions such as network coverage holes, frequent cell switching, harsh geographic environment and the like often occur, so that the GSM-R wireless network is abnormal, further, the services such as scheduling and control in the locomotive are influenced, and even the driving safety is influenced; in order to ensure that the GSM-R wireless network can provide stable service for the locomotive, the quality parameters in the GSM-R wireless network need to be acquired periodically, and the GSM-R wireless network needs to be optimized according to the quality parameters in the GSM-R wireless network. In the prior art, generally, a vehicle-mounted communication device installed on a locomotive acquires quality parameters of a GSM-R wireless network in the locomotive running, sends the quality parameters to a data management system, and a professional determines an optimization scheme of the GSM-R wireless network according to the quality parameters in the data management system.
However, the data management system includes a large number of quality parameters sent by the on-board communication devices in the multiple locomotives and of the multiple railway lines, and because the communication quality difference in different road sections along the railway is large, the actual communication quality in each road section along the railway cannot be determined only according to a large number of disordered quality parameters, so that an accurate optimization scheme cannot be made for the GSM-R wireless network.
Disclosure of Invention
The embodiment of the invention provides a method and a device for detecting the quality of a GSM-R wireless network, which are used for displaying each road section in a route to be detected and comprehensive quality parameters corresponding to each road section to a user so that the user can determine an accurate optimization scheme according to the comprehensive quality parameters in each road section in the route to be detected.
In a first aspect, an embodiment of the present invention provides a GSM-R wireless network quality detection method, which is applied to a data management system, where the data management system is used to manage data collected by multiple vehicle-mounted communication devices, and the method includes:
acquiring a plurality of data packets acquired by the plurality of vehicle-mounted communication devices, wherein the data packets comprise wireless network parameter information and information of acquisition places of the wireless network parameter information;
determining a data packet of which the acquisition site belongs to a line to be detected in the plurality of data packets, wherein the line to be detected comprises a plurality of road sections;
determining the road sections corresponding to the data packets belonging to the line to be detected in a plurality of road sections of the line to be detected respectively to obtain the data packets corresponding to the road sections;
according to the wireless network parameter information in the data packet corresponding to each road section, the wireless network parameter information of the same type in the data packet corresponding to each road section is integrated to obtain the comprehensive wireless network parameter information corresponding to each road section, and the comprehensive wireless network parameter information corresponding to each road section is displayed for a user.
In a second aspect, an embodiment of the present invention provides a GSM-R wireless network quality detection apparatus, which is applied to a data management system, where the data management system is used to manage data collected by a plurality of vehicle-mounted communication devices, and the apparatus includes:
the acquisition module is used for acquiring a plurality of data packets acquired by the plurality of vehicle-mounted communication devices, wherein the data packets comprise wireless network parameter information and information of acquisition places of the wireless network parameter information;
the determining module is used for determining data packets of the acquisition site belonging to a line to be detected in the plurality of data packets, wherein the line to be detected comprises a plurality of road sections, and determining the road sections corresponding to the data packets belonging to the line to be detected in the plurality of road sections of the line to be detected respectively to obtain the data packets corresponding to the road sections;
the integration module is used for integrating the wireless network parameter information of the same type in the data packets corresponding to the road sections according to the wireless network parameter information in the data packets corresponding to the road sections to obtain the comprehensive wireless network parameter information corresponding to the road sections;
and the display module is used for displaying the comprehensive wireless network parameter information corresponding to each road section to a user.
The method and the device for detecting the quality of the GSM-R wireless network, provided by the embodiment of the invention, are used for acquiring a plurality of data packets acquired by a plurality of vehicle-mounted communication devices, wherein the data packets comprise wireless network parameter information and information of acquisition places of the wireless network parameter information, and determining that the acquisition places belong to data packets of a line to be detected in the plurality of data packets, and the line to be detected comprises a plurality of road sections; then, determining road sections corresponding to data packets belonging to the line to be detected in a plurality of road sections of the line to be detected respectively to obtain the data packets corresponding to the road sections; according to the wireless network parameter information in the data packet corresponding to each road section, the wireless network parameter information of the same type in the data packet corresponding to each road section is integrated to obtain the comprehensive wireless network parameter information corresponding to each road section, and the comprehensive wireless network parameter information corresponding to each road section is displayed to a user, so that the user can determine the wireless network quality in each road section of the line to be detected according to the comprehensive wireless network parameter information corresponding to each road section of the line to be detected, and further the user can make an accurate optimization scheme for the GSM-R wireless network according to the wireless network quality in each road section of the line to be detected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic flow chart of a GSM-R wireless network quality detection method provided by the present invention;
FIG. 2 is a schematic flow chart of a method for determining a data packet belonging to a line to be detected according to the present invention;
fig. 3 is a schematic flowchart of a method for determining a road segment corresponding to a data packet according to the present invention;
fig. 4 is a schematic structural diagram of a GSM-R wireless network quality detection apparatus provided in 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 and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The locomotive related to the embodiment of the invention is a vehicle running on a railway, each locomotive is provided with a vehicle-mounted communication device, the vehicle-mounted communication device can collect wireless network parameter information in the running process of the locomotive, and the vehicle-mounted communication device can be a comprehensive wireless communication device (CIR) of the locomotive; the data management system provided by the embodiment of the invention can manage the wireless network parameter information acquired by a plurality of vehicle-mounted communication devices and display the processed wireless network parameters to a user. The following describes in detail a GSM-R wireless network quality detection method according to the present invention with specific embodiments.
Fig. 1 is a schematic flow chart of a GSM-R wireless network quality detection method provided by the present invention, where an execution subject of the method is a data management system, and the data management system is implemented by software and/or hardware, please refer to fig. 1, where the method may include:
s101, acquiring a plurality of data packets acquired by a plurality of vehicle-mounted communication devices, wherein the data packets comprise wireless network parameter information and information of acquisition places of the wireless network parameter information;
s102, determining a data packet of which the acquisition site belongs to a line to be detected in the plurality of data packets, wherein the line to be detected comprises a plurality of road sections;
s103, determining road sections corresponding to data packets belonging to the line to be detected in a plurality of road sections of the line to be detected respectively to obtain the data packets corresponding to the road sections;
s104, according to the wireless network parameter information in the data packet corresponding to each road section, integrating the wireless network parameter information of the same type in the data packet corresponding to each road section to obtain the comprehensive wireless network parameter information corresponding to each road section, and displaying the comprehensive wireless network parameter information corresponding to each road section to a user.
In practical application, in the running process of the locomotive, the vehicle-mounted communication equipment periodically or in real time collects wireless network parameter information communicated by the locomotive, determines the collection place of the wireless network parameter information, and generates a data packet according to the wireless network parameter information and the information of the collection place; the wireless network parameter information can comprise the type of a wireless network parameter, the value of the wireless network parameter and the like, the type of the wireless network parameter can comprise the signal intensity, the transmission bandwidth of a wireless link, the transmission delay, the packet loss of the wireless link, the disconnection of the wireless link, the voice call failure and the like in the locomotive communication process, and the acquisition place can be represented by longitude and latitude; for different types of wireless network parameters, the processes of collecting the wireless network parameters and determining to obtain the data packets by the vehicle-mounted communication equipment are different, specifically:
for signal strength, transmission bandwidth and transmission delay of the wireless link: the vehicle-mounted communication equipment can periodically acquire the wireless network parameter information, and optionally, the wireless network parameter information acquisition period can be set to millisecond level; the vehicle-mounted communication equipment can acquire wireless network parameter information at the current moment and also can acquire average wireless network parameter information in a period, determines an acquisition place for acquiring the wireless network parameter information after acquiring the wireless network parameter information, and encapsulates the wireless network parameter information and the information of the acquisition place into a data packet; the acquisition periods of the signal strength, the transmission bandwidth of the wireless link and the transmission delay can be the same or different, and the acquisition periods of various types of parameters can be set according to actual needs.
For example, the vehicle-mounted communication device may collect the signal strength every 20 milliseconds, or collect the average signal strength (hereinafter, simply referred to as signal strength) in the last minute every minute, determine the collection location of the collected signal strength after obtaining the signal strength, and generate the data packet shown in table 1.
TABLE 1
| Types of wireless network parameters | Dereferencing of wireless network parameters | Information of collection place |
| Signal strength | -85dBm | Latitude and longitude (An, Bn) |
Aiming at wireless link packet loss, wireless link disconnection and voice call failure (hereinafter referred to as events for short): the vehicle-mounted communication equipment detects whether the event occurs in the GSM-R network in real time, and if the event occurs, the acquisition place where the event occurs is determined; for the above types of wireless network parameters, values of the wireless network parameters are all 1, for example, when the vehicle-mounted communication device detects that a wireless link packet loss event occurs, a data packet shown in table 2 is generated:
TABLE 2
| Types of wireless network parameters | Dereferencing of wireless network parameters | Information of collection place |
| Packet loss in wireless link | 1 | Latitude and longitude (Am, Bm) |
It should be noted that, for the packet loss of the wireless link, the disconnection of the wireless link, and the failure of the voice call (hereinafter referred to as an event), since there is a certain time delay from the occurrence of the event to the determination of the occurrence of the event, when the data management system obtains the above type of data packet, the collection location may be modified according to the driving speed of the vehicle.
In the practical application process, the type of the wireless network parameter may also be other types, such as the running speed of the locomotive, the cell identifier where the locomotive is located, and the like, and the vehicle-mounted communication device may also acquire the wireless network parameter information according to other manners, which is not specifically limited in the present invention. After the vehicle-mounted communication equipment obtains the data packet, the vehicle-mounted communication equipment can be sent to the data management system through a wireless network, and can also be copied to the data management system through a mobile hard disk.
In an actual application process, when the data management system determines that the data packet in the line to be detected is to be managed, the data management system determines the data packet belonging to the line to be detected from the acquired plurality of data packets acquired by the plurality of vehicle-mounted communication devices, specifically, the data management system judges whether the acquisition place in the data packet belongs to the line to be detected according to the information of the acquisition place in each data packet and the geographical position information of the line to be detected, and if so, determines that the data packet belongs to the data packet of the line to be detected. Further, the data packet may further include acquisition time of wireless network parameter information, and correspondingly, the data management system may further determine, in the acquired data packet, that the acquisition time belongs to a preset time period and the acquisition location belongs to a data packet of the line to be detected, where the preset time period may be a time period preset by a user, so that the data management system may manage wireless network parameters of the GSM-R network within the preset time period, and flexibility of wireless network parameter management of the GSM-R network is improved.
After determining to obtain the data packet belonging to the line to be detected, dividing the line to be detected into a plurality of road sections, preferably, the length of each road section is the same, optionally, the length of each road section can be 1 meter, 10 meters and the like, and the length of each road section can be set according to actual needs; for each data packet belonging to a line to be detected, according to information of a collection place in the data packet and geographical position information of each road section, determining a road section corresponding to the data packet to obtain the data packet corresponding to each road section, then integrating wireless network parameter information of the same type in the data packet corresponding to each road section to obtain comprehensive wireless network parameter information corresponding to each road section, wherein the process of integrating the wireless network parameter information is different according to the type of the wireless network parameter, and specifically: when the type of the wireless network parameter is any one of signal intensity, transmission bandwidth of a wireless link and transmission delay, acquiring an average value of wireless network parameter values of the same type in the data packet corresponding to each road section; taking the average value as the comprehensive wireless network parameter information corresponding to the road section; when the parameter type of the wireless network parameter is any one of wireless link packet loss, wireless link circuit break and voice call failure, acquiring the value sum of the wireless network parameters of the same type in the data packets corresponding to each road section; and taking the sum of the values of the wireless network parameters as the comprehensive wireless network parameter information corresponding to the road section.
The method shown in the embodiment of fig. 1 is described in detail below by way of specific examples.
Assuming that the data management system can acquire 1 ten thousand data packets collected by the on-board communication device of the locomotive running on the line 1-line 10, and assuming that the line to be detected is the line 1, the data management system manages the data packets belonging to the line 1 by the following method.
The data management system determines 1 thousand data packets belonging to the line 1 according to the geographical position of the line 1 and the information of the acquisition places in the 1 ten thousand data packets; the data management system divides the line 1 into 1 ten thousand road sections, and determines the road section corresponding to each data packet in 1 thousand data packets according to the information of the collection place in the 1 thousand data packets belonging to the line 1 and the geographical position information of the 1 ten thousand road sections, so as to obtain the data packet corresponding to each road section, wherein one road section may correspond to a plurality of data packets, and one road section may not have a corresponding data packet; after determining to obtain the data packet corresponding to each road section, the data management system integrates the wireless network parameter information of the same type in the data packet corresponding to each road section to obtain the comprehensive wireless network parameter information corresponding to each road section.
For example, for a road segment 1, the road segment corresponds to 5 data packets, where the type of the wireless network parameter information in the data packets 1 to 3 is signal strength, and the type of the wireless network parameter information in the data packets 4 and 5 is wireless link packet loss, an average value of the signal strength in the data packets 1 to 3 is obtained, a sum of wireless link packet loss events in the data packets 4 and 5 is obtained, and the average value of the signal strength in the data packets 1 to 3 and the sum of the wireless link packet loss events in the data packets 4 and 5 are used as the comprehensive wireless network parameter information corresponding to the road segment 1.
The above operation is performed for other segments in the line 1, and the integrated wireless network parameter information corresponding to each segment in the line 1 shown in table 3 is obtained, wherein if a data packet of a certain parameter type does not exist in one segment, the corresponding position is represented by "empty".
TABLE 3
| Road section 1 | Road section 2 | Road section 3 | Road section 4 | Road section 5 | …… | |
| Signal strength | -100dBm | Air conditioner | -85dBm | -110dBm | -75dBm | …… |
| Average bandwidth | Air conditioner | 10M | Air conditioner | 3M | 15M | …… |
| Packet loss in wireless link | 2 | Air conditioner | 1 | 3 | Air conditioner | …… |
| Radio link disconnection | Air conditioner | 1 | Air conditioner | 2 | Air conditioner | …… |
| …… | …… | …… | …… | …… | …… | …… |
After the data management system obtains the comprehensive wireless network parameter information corresponding to each segment of the line 1 shown in the table 3, the comprehensive wireless network parameter information is displayed to a user, the user can clearly know the wireless network quality in each segment of the line 1 according to the comprehensive wireless network parameter information corresponding to each segment of the line 1 shown in the table 3, and an accurate optimization scheme is made for the GSM-R wireless network according to the wireless network quality in each segment.
The method for detecting the quality of the GSM-R wireless network, provided by the embodiment of the invention, comprises the steps of acquiring a plurality of data packets acquired by a plurality of vehicle-mounted communication devices, wherein the data packets comprise wireless network parameter information and information of acquisition places of the wireless network parameter information, determining the acquisition places to belong to the data packets of a line to be detected in the plurality of data packets, and the line to be detected comprises a plurality of road sections; then, determining road sections corresponding to data packets belonging to the line to be detected in a plurality of road sections of the line to be detected respectively to obtain the data packets corresponding to the road sections; according to the wireless network parameter information in the data packet corresponding to each road section, the wireless network parameter information of the same type in the data packet corresponding to each road section is integrated to obtain the comprehensive wireless network parameter information corresponding to each road section, and the comprehensive wireless network parameter information corresponding to each road section is displayed to a user, so that the user can determine the wireless network quality in each road section of the line to be detected according to the comprehensive wireless network parameter information corresponding to each road section of the line to be detected, and further the user can make an accurate optimization scheme for the GSM-R wireless network according to the wireless network quality in each road section of the line to be detected.
In an actual use process, the information of the collection location may include longitude and latitude of the collection location, the data management system includes a railway information base, the railway information base includes an identifier of a route and information of a location point corresponding to the route, the information of the location point includes longitude and latitude of the location point, and accordingly, step S102 in the embodiment shown in fig. 1 may be implemented in the following feasible manner for any one of a plurality of data packets collected by a plurality of vehicle-mounted communication devices, specifically, please refer to the embodiment shown in fig. 2.
Fig. 2 is a schematic flow chart of a method for determining a data packet belonging to a line to be detected according to the present invention, where an execution subject of the method is a data management system, and please refer to fig. 2, the method may include:
s201, determining a position point closest to an acquisition place according to the longitude and the latitude of the acquisition place and the longitude and the latitude of the position point;
s202, judging whether a position point closest to the acquisition place is a position point corresponding to the line to be detected;
if yes, executing S203;
if the judgment result is negative, executing S204;
s203, determining the data packet including the information of the acquisition place as the data packet belonging to the line to be detected.
And S204, determining that the data packet containing the information of the acquisition place does not belong to the data packet of the line to be detected.
The data management system comprises a railway information base, wherein the railway information base comprises identification of lines and information of position points corresponding to the lines, each line corresponds to a plurality of position points, and one line can be represented through the position points.
In the practical application process, for each data packet in the data management system, according to the longitude and latitude of the acquisition place in the data packet and the longitude and latitude of each position point in the information base, the distance between the acquisition place in the data packet and each position point can be calculated, whether the position point closest to the acquisition place is the position point corresponding to the line to be detected or not is judged, and if yes, the position point closest to the acquisition place is judged
For example, assuming that 1 ten thousand location points exist in the data management system, the line to be detected is line 1, and line 1 corresponds to 1 thousand location points, the data management system determines the data packet belonging to line 1 by the following method: for a data packet 1 in the data management system, respectively calculating the distance between each position point and the acquisition place 1 according to the longitude and latitude of the acquisition place 1 in the data packet 1 and the longitude and latitude of each position point, acquiring the position point closest to the acquisition place 1, judging whether the position point closest to the acquisition place 1 is the position point corresponding to the line 1, and if so, determining that the data packet 1 is the data packet belonging to the line 1.
On the basis of the embodiment shown in fig. 2, the information of the location point may further include a kilometer sign of the location point, and accordingly, step S103 in the embodiment shown in fig. 1 may be implemented in the following feasible manner for any data packet belonging to the line to be detected, specifically, please refer to the embodiment shown in fig. 3.
Fig. 3 is a schematic flowchart of a method for determining a road segment corresponding to a data packet according to the present invention, where an execution subject of the method is a data management system, please refer to fig. 3, and the method may include:
s301, determining a first position point and a second position point which are closest to an acquisition place in the position points corresponding to the line to be detected according to the longitude and the latitude of the acquisition place and the longitude and the latitude of the position points;
s302, determining the kilometer post of the acquisition place according to the longitude, the latitude and the kilometer post of the first position point, the longitude, the latitude and the kilometer post of the second position point and the longitude and the latitude of the acquisition place;
and S303, determining the road section corresponding to the data packet belonging to the line to be detected according to the kilometer post of the acquisition place, and obtaining the data packet corresponding to each road section.
In this embodiment, the location point information may further include a kilometer post of the location point, and the distance between the location point and one end of the line is represented by the kilometer post, further, each road section in the line to be detected corresponds to an initial kilometer post and an end kilometer post, and the initial kilometer post and the end kilometer post represent a unique road section on the line to be detected.
After the data management system determines to obtain the data packet belonging to the line to be detected, for any data packet belonging to the line to be detected, two position points closest to the acquisition place are determined according to the longitude and the latitude of the acquisition place and the longitude and the latitude of each position point in the data packet, and are respectively marked as a first position point and a second position point.
After obtaining the first location point and the second location point, optionally, the kilometer post of the collection location may be determined through the following feasible implementation manners:
determining the distance a between the acquisition place and the first position point according to the longitude and the latitude of the acquisition place and the longitude and the latitude of the first position point;
determining the distance b between the acquisition place and the second position point according to the longitude and the latitude of the acquisition place and the longitude and the latitude of the second position point;
determining the distance c between the first position point and the second position point according to the longitude and the latitude of the first position point and the longitude and the latitude of the second position point;
determining a kilometer post M of an acquisition site by the following formula0：
Wherein M is0For purposes of gathering kilometers of a site, M1Is a kilometer scale of the first location point, M2A kilometer post for the second location point;
and after the kilometer post of the acquisition place is determined and obtained according to the method, determining the road section including the kilometer post of the acquisition place as the road section corresponding to the data packet belonging to the line to be detected according to the starting kilometer post and the ending kilometer post of each road section.
In the practical application process, in order to more vividly show the comprehensive wireless network parameter information corresponding to each road section in the route to be detected to the user, the comprehensive wireless network parameter information corresponding to each road section in the route to be detected can be shown to the user through the three-dimensional parameter model, specifically: determining a three-dimensional parameter model of a line to be detected, wherein a first coordinate axis of the three-dimensional parameter model represents an identification of a road section, a second coordinate axis represents a value of an integrated wireless network parameter, and a third coordinate axis represents a type of the integrated wireless network parameter; identifying the value of the comprehensive wireless network parameter and the type of the comprehensive wireless network parameter corresponding to each road section in each coordinate area of the three-dimensional parameter model; the three-dimensional parametric model is presented to the user.
The three coordinate axes of the three-dimensional parameter model are respectively represented by an X axis (a first coordinate axis), a Y axis (a second coordinate axis) and a Z axis (a third coordinate axis), wherein the X axis can represent the identification of the road section by a kilometer post; y represents the value of the comprehensive wireless network parameters, such as the comprehensive network signal intensity, the comprehensive bandwidth, the comprehensive time delay, the wireless link interruption times, the wireless link packet loss times and the like; the Z-axis represents the type of integrated wireless network parameter.
In the practical application process, a user can obtain different information through different planes in the three-dimensional parameter model, and specifically, the type of wireless network parameters distributed in each road section can be obtained through an X-Y plane; the values of the comprehensive wireless network parameters of each parameter type in each road section can be obtained through the X-Z plane; through the Z-Y plane, the corresponding relation between the type of each wireless network parameter and the value of the comprehensive wireless network parameter can be obtained.
In the process, the comprehensive wireless network parameter information corresponding to each road section in the route to be detected is displayed to the user through the three-dimensional parameter model, so that the user can more visually acquire the wireless network parameter information corresponding to each road section in the route to be detected, and further more visually acquire the wireless network quality condition in each road section, and the user can determine an accurate optimization scheme according to the wireless network quality condition in each road section.
Further, in order to increase the flexibility of checking the comprehensive wireless network parameter information corresponding to different road sections in the line to be detected by the user, the data management system can also integrate and process the wireless network parameter information corresponding to each road section, specifically: receiving a road section amplification ratio K input by a user, wherein the K is an integer greater than or equal to 2; and according to K, sequentially integrating the same type of comprehensive wireless network parameter information corresponding to the K road sections from the initial road section of the line to be detected to obtain comprehensive wireless network parameter information corresponding to the road section amplification ratio, and displaying the comprehensive wireless network parameter information corresponding to the road section amplification ratio to a user.
Illustratively, assuming that the total length of the line 1 is 1 kilometer, 10 ten thousand road segments are currently included in the line 1, and each road segment has a length of 10 meters; when a user needs to check the comprehensive wireless network parameter information in each 100-meter road section, the user inputs an amplification ratio of 10 into the data management system, the data management system integrates the comprehensive wireless network parameter information of the same type corresponding to the road sections 1-10 from the first road section of the line 1, integrates the comprehensive wireless network parameter information of the same type corresponding to the road sections 11-20, and so on, and integrates the comprehensive wireless network parameter information of the same type corresponding to 10 ten thousand road sections to obtain 1 ten thousand road sections and the comprehensive wireless network parameter information corresponding to the 1 ten thousand road sections.
In the above process, the process of integrating the same type of integrated wireless network parameter information corresponding to the K segments is similar to the process of integrating the same type of wireless network parameter information in the data packets corresponding to each segment in the embodiment shown in fig. 1, and details are not repeated here.
Fig. 4 is a schematic structural diagram of a GSM-R wireless network quality detection apparatus provided by the present invention, where the apparatus is applied to a data management system, and the data management system is used to manage data collected by a plurality of vehicle-mounted communication devices, please refer to fig. 4, the GSM-R wireless network quality detection apparatus may include:
the acquiring module 401 is configured to acquire a plurality of data packets acquired by a plurality of vehicle-mounted communication devices, where the data packets include wireless network parameter information and information of acquisition locations of the wireless network parameter information;
a determining module 402, configured to determine, in a plurality of data packets, a data packet whose acquisition location belongs to a line to be detected, where the line to be detected includes a plurality of road segments, and determine, in the plurality of road segments of the line to be detected, a road segment corresponding to each data packet belonging to the line to be detected, respectively, to obtain a data packet corresponding to each road segment;
an integration module 403, configured to integrate, according to the wireless network parameter information in the data packet corresponding to each road segment, the wireless network parameter information of the same type in the data packet corresponding to each road segment, so as to obtain comprehensive wireless network parameter information corresponding to each road segment;
and a display module 404, configured to display, to the user, the integrated wireless network parameter information corresponding to each road segment.
Optionally, the information of the collection place may include a longitude and a latitude of the collection place, the data management system includes a railway information base, the railway information base includes an identifier of a route and information of a location point corresponding to the route, and the information of the location point includes the longitude and the latitude of the location point;
accordingly, the determining module 402 may be specifically configured to: for any data packet in the plurality of data packets, determining a position point closest to the acquisition place according to the longitude and the latitude of the acquisition place and the longitude and the latitude of the position point;
judging whether a position point closest to the acquisition place is a position point corresponding to the line to be detected;
and if so, determining the data packet comprising the information of the acquisition place as a data packet belonging to the line to be detected.
Further, the information of the location point may further include a kilometer post of the location point, and correspondingly, the determining module 402 may further be configured to:
aiming at any data packet belonging to the line to be detected, determining a first position point and a second position point which are closest to the acquisition place in the position points corresponding to the line to be detected according to the longitude and the latitude of the acquisition place and the longitude and the latitude of the position points;
determining the kilometer post of the acquisition place according to the longitude, the latitude and the kilometer post of the first position point, the longitude, the latitude and the kilometer post of the second position point and the longitude and the latitude of the acquisition place;
and determining the road section corresponding to the data packet belonging to the line to be detected according to the kilometer post of the acquisition place to obtain the data packet corresponding to each road section.
Optionally, the determining module 402 may be further specifically configured to:
determining the distance a between the acquisition place and the first position point according to the longitude and the latitude of the acquisition place and the longitude and the latitude of the first position point;
determining the distance b between the acquisition place and the second position point according to the longitude and the latitude of the acquisition place and the longitude and the latitude of the second position point;
determining the distance c between the first position point and the second position point according to the longitude and the latitude of the first position point and the longitude and the latitude of the second position point;
determining a kilometer post M of an acquisition site by the following formula0：
Wherein M is0For purposes of gathering kilometers of a site, M1Is a kilometer scale of the first location point, M2A kilometer post for the second location point;
and determining the road section including the kilometer posts of the acquisition places as the road section corresponding to the data packet belonging to the line to be detected according to the starting kilometer post and the ending kilometer post of each road section.
In the actual application process, with the difference of the types of the wireless network parameters, the specific role of the integration module 403 is also different, specifically:
when the type of the wireless network parameter is any one of signal strength, transmission bandwidth of a wireless link, and transmission delay, the integration module 403 may be specifically configured to:
acquiring the average value of the wireless network parameter values of the same type in the data packets corresponding to each road section;
taking the average value as the comprehensive wireless network parameter information corresponding to the road section;
or,
when the type of the wireless network parameter is any one of packet loss of the wireless link, disconnection of the wireless link, and failure of the voice call, the integration module 403 may be specifically configured to:
acquiring the sum of values of wireless network parameters of the same type in data packets corresponding to each road section;
and taking the sum of the values of the wireless network parameters as the comprehensive wireless network parameter information corresponding to the road section.
Further, the display module 404 may be specifically configured to:
determining a three-dimensional parameter model of a line to be detected, wherein a first coordinate axis of the three-dimensional parameter model represents an identification of a road section, a second coordinate axis represents a value of an integrated wireless network parameter, and a third coordinate axis represents a type of the integrated wireless network parameter;
identifying the value of the comprehensive wireless network parameter and the type of the comprehensive wireless network parameter corresponding to each road section in each coordinate area of the three-dimensional parameter model;
the three-dimensional parametric model is presented to the user.
Further, the integration module 403 may also be configured to:
before the display module displays the comprehensive wireless network parameter information corresponding to each road section to a user, receiving a road section amplification ratio K input by the user, wherein the K is an integer greater than or equal to 2;
according to K, sequentially integrating the same type of comprehensive wireless network parameter information corresponding to K road sections from the initial road section of the line to be detected to obtain comprehensive wireless network parameter information corresponding to the road section amplification ratio;
correspondingly, the display module is specifically used for displaying the comprehensive wireless network parameter information corresponding to the road section amplification ratio to the user.
In an actual application process, the data packet further includes a collection time of the wireless network parameter, and accordingly, the determining module 401 may be further configured to: and determining the data packets of which the acquisition time belongs to a preset time period and the acquisition place belongs to the line to be detected in the plurality of data packets.
The apparatus of this embodiment may implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A GSM-R wireless network quality detection method is applied to a data management system, wherein the data management system is used for managing data collected by a plurality of vehicle-mounted communication devices, and the method comprises the following steps:
acquiring a plurality of data packets acquired by the plurality of vehicle-mounted communication devices, wherein the data packets comprise wireless network parameter information and information of acquisition places of the wireless network parameter information;
determining a data packet of which the acquisition site belongs to a line to be detected in the plurality of data packets, wherein the line to be detected comprises a plurality of road sections;
determining the road sections corresponding to the data packets belonging to the line to be detected in a plurality of road sections of the line to be detected respectively to obtain the data packets corresponding to the road sections;
according to the wireless network parameter information in the data packet corresponding to each road section, the wireless network parameter information of the same type in the data packet corresponding to each road section is integrated to obtain the comprehensive wireless network parameter information corresponding to each road section, and the comprehensive wireless network parameter information corresponding to each road section is displayed for a user.
2. The method according to claim 1, wherein the information of the collection place comprises longitude and latitude of the collection place, the data management system comprises a railway information base, the railway information base comprises an identifier of a route and information of a location point corresponding to the route, and the information of the location point comprises longitude and latitude of the location point;
correspondingly, the data packet which is determined to belong to the line to be detected at the acquisition site in the plurality of data packets comprises:
for any data packet in the plurality of data packets, determining a position point closest to the acquisition place according to the longitude and the latitude of the acquisition place and the longitude and the latitude of the position point;
judging whether the position point closest to the acquisition place is the position point corresponding to the line to be detected;
and if so, determining that the data packet comprising the information of the acquisition place is the data packet belonging to the line to be detected.
3. The method according to claim 2, wherein the information of the location point further includes a kilometer sign of the location point, and in a plurality of road segments of the line to be detected, determining a road segment corresponding to each of the data packets belonging to the line to be detected, respectively, to obtain a data packet corresponding to each of the road segments, includes:
for any data packet belonging to the line to be detected, determining a first position point and a second position point which are closest to the acquisition place in the position points corresponding to the line to be detected according to the longitude and the latitude of the acquisition place and the longitude and the latitude of the position points;
determining the kilometer post of the acquisition place according to the longitude, the latitude and the kilometer post of the first position point, the longitude, the latitude and the kilometer post of the second position point, and the longitude and the latitude of the acquisition place;
and determining the road sections corresponding to the data packets belonging to the line to be detected according to the kilometer post of the acquisition place to obtain the data packets corresponding to each road section.
4. The method of claim 3, wherein determining the kilometer post of the acquisition location based on the longitude, latitude, kilometer post of the first location point, the longitude, latitude, kilometer post of the second location point, and the longitude and latitude of the acquisition location comprises:
determining the distance a between the acquisition place and the first position point according to the longitude and the latitude of the acquisition place and the longitude and the latitude of the first position point;
determining the distance b between the acquisition place and the second position point according to the longitude and the latitude of the acquisition place and the longitude and the latitude of the second position point;
determining a distance c between the first location point and the second location point according to the longitude and latitude of the first location point and the longitude and latitude of the second location point;
determining the kilometer post M of the acquisition place by the following formula I0：
Wherein M is0Is the kilometer scale of the collection site, M1Is a kilometer scale of the first location point, M2A kilometer post for the second location point;
correspondingly, the determining the road section corresponding to the data packet belonging to the line to be detected according to the kilometer post of the acquisition place includes:
and determining the road section including the kilometer posts of the acquisition places as the road section corresponding to the data packet belonging to the line to be detected according to the starting kilometer post and the ending kilometer post of each road section.
5. The method according to any one of claims 1 to 4,
the type of the wireless network parameter is any one of signal strength, transmission bandwidth of a wireless link and transmission delay, and correspondingly, according to the wireless network parameter information in the data packet corresponding to each road section, the wireless network parameters of the same type in the data packet corresponding to each road section are integrated to obtain the comprehensive wireless network parameter information corresponding to each road section, including:
acquiring the average value of the wireless network parameter values of the same type in the data packets corresponding to each road section;
taking the average value as the comprehensive wireless network parameter information corresponding to the road section;
or,
the type of the wireless network parameter is any one of wireless link packet loss, wireless link open circuit and voice call failure, and correspondingly, according to the wireless network parameter information in the data packet corresponding to each road section, the wireless network parameters of the same type in the data packet corresponding to each road section are integrated to obtain the comprehensive wireless network parameter information corresponding to each road section, including:
acquiring the sum of values of wireless network parameters of the same type in data packets corresponding to each road section;
and taking the sum of the values of the wireless network parameters as the comprehensive wireless network parameter information corresponding to the road section.
6. The method according to any one of claims 1-4, wherein the presenting the integrated wireless network parameter information corresponding to each of the road segments to the user comprises:
determining a three-dimensional parameter model of the line to be detected, wherein a first coordinate axis of the three-dimensional parameter model represents an identification of a road section, a second coordinate axis represents a value of an integrated wireless network parameter, and a third coordinate axis represents a type of the integrated wireless network parameter;
identifying the value of the comprehensive wireless network parameter and the type of the comprehensive wireless network parameter corresponding to each road section in each coordinate area of the three-dimensional parameter model;
and displaying the three-dimensional parameter model to a user.
7. The method according to any one of claims 1 to 4, wherein before presenting the integrated wireless network parameter information corresponding to each of the road segments to the user, the method further comprises:
receiving a road section amplification ratio K input by a user, wherein the K is an integer greater than or equal to 2;
according to the K, sequentially integrating the same type of comprehensive wireless network parameter information corresponding to the K road sections from the initial road section of the line to be detected to obtain comprehensive wireless network parameter information corresponding to the road section amplification ratio;
correspondingly, the step of displaying the comprehensive wireless network parameter information corresponding to each road section to the user comprises the following steps:
and displaying the comprehensive wireless network parameter information corresponding to the road section amplification ratio to a user.
8. The method according to any one of claims 1 to 4, wherein the data packet further includes a collection time of the wireless network parameter, and accordingly, determining, in the plurality of data packets, a collection location of a data packet belonging to a line to be detected includes:
and determining the data packets of which the acquisition time belongs to a preset time period and the acquisition place belongs to the line to be detected in the plurality of data packets.
9. A GSM-R wireless network quality detection device is applied to a data management system, wherein the data management system is used for managing data collected by a plurality of vehicle-mounted communication devices, and the device comprises:
the acquisition module is used for acquiring a plurality of data packets acquired by the plurality of vehicle-mounted communication devices, wherein the data packets comprise wireless network parameter information and information of acquisition places of the wireless network parameter information;
the determining module is used for determining data packets of the acquisition site belonging to a line to be detected in the plurality of data packets, wherein the line to be detected comprises a plurality of road sections, and determining the road sections corresponding to the data packets belonging to the line to be detected in the plurality of road sections of the line to be detected respectively to obtain the data packets corresponding to the road sections;
the integration module is used for integrating the wireless network parameter information of the same type in the data packets corresponding to the road sections according to the wireless network parameter information in the data packets corresponding to the road sections to obtain the comprehensive wireless network parameter information corresponding to the road sections;
and the display module is used for displaying the comprehensive wireless network parameter information corresponding to each road section to a user.
10. The device according to claim 9, wherein the information of the collection place includes longitude and latitude of the collection place, the data management system includes a railway information base, the railway information base includes an identifier of a route and information of a location point corresponding to the route, and the information of the location point includes longitude and latitude of the location point;
correspondingly, the determining module is specifically configured to: for any data packet in the plurality of data packets, determining a position point closest to the acquisition place according to the longitude and the latitude of the acquisition place and the longitude and the latitude of the position point;
judging whether the position point closest to the acquisition place is the position point corresponding to the line to be detected;
and if so, determining that the data packet comprising the information of the acquisition place is the data packet belonging to the line to be detected.
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| CN101917734A (en) * | 2010-07-23 | 2010-12-15 | 北京全路通信信号研究设计院 | GSM-R (Global System for Mobile Communication-Railway) network routing test and optimization analysis system |
| CN102595445A (en) * | 2012-02-13 | 2012-07-18 | 上海交通大学 | Global system for mobile communications for railway (GSM-R) network communication quality test system combined with geographic information system (GIS) |
| CN104581802A (en) * | 2015-02-13 | 2015-04-29 | 北京北交信控科技有限公司 | Test method and test system for GSM-R network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101917734A (en) * | 2010-07-23 | 2010-12-15 | 北京全路通信信号研究设计院 | GSM-R (Global System for Mobile Communication-Railway) network routing test and optimization analysis system |
| CN102595445A (en) * | 2012-02-13 | 2012-07-18 | 上海交通大学 | Global system for mobile communications for railway (GSM-R) network communication quality test system combined with geographic information system (GIS) |
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Application publication date: 20160224 |