Method and device for positioning detection points without longitude and latitude for railway communication

Abstract

The present invention discloses a method and device for positioning a non-latitude and longitude detection point of railway communication. The method comprises: acquiring communication data of a plurality of detection points to determine a non-latitude and longitude detection point; determining a reference detection point according to kilometer mark information of the plurality of detection points, and taking the distance between the non-latitude and longitude detection point and the reference detection point as a first distance; determining a maximum signal receiving power value of the non-latitude and longitude detection point, as well as a corresponding channel sequence number and a base station identifier according to receiving power information of the non-latitude and longitude detection point; determining a signal wavelength according to the channel sequence number; determining a reference base station according to the base station identifier; acquiring a signal transmission power value of the reference base station, and determining a second distance according to the signal transmission power value, the maximum signal receiving power value and the signal wavelength of the reference base station; acquiring the latitude and longitude information of the reference detection point and the reference base station, and determining the positioning information of the non-latitude and longitude point according to the first distance, the second distance, the latitude and longitude information of the reference detection point and the reference base station.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a method and device for positioning a non-latitude and longitude detection point in railway communication. Background Art

[0002] This section is intended to provide a background or context to the embodiments of the invention recited in the claims. No admission is made that the description herein is prior art by inclusion in this section.

[0003] The railway communication system is an important means to ensure the safe operation of trains. Its characteristics are that there are many points and long lines, a wide variety of equipment manufacturers, and a complex network structure. With the increase in communication-borne services, the number and types of driving services carried by the communication network are rapidly expanding. The safety requirements of various services are becoming higher and higher, and the network load is gradually increasing. Under conditions such as high-speed train operation, the operating scenarios and interfaces between systems tend to be complex, and faults are highly hidden. How to promptly discover faults and hidden dangers in a scientific and efficient manner, improve network performance and quality, and establish lean operation and maintenance support are issues that need to be urgently addressed.

[0004] The network structure affects the quality of the wireless network. A good wireless network structure requires good and accurate coverage, sufficient and balanced capacity, and reasonable and fine frequency. There are usually two methods for testing the network structure analysis of the GSM-R system. The first method is a dynamic detection method, such as using a comprehensive detection vehicle and an electrical detection vehicle to use instruments to collect network performance data in motion; the second method is to obtain network performance data from the network side, that is, measurement report data. However, in the network performance tests of the two methods, the latitude and longitude of the detection points in the detection data are sometimes missing, which will hinder the coverage analysis of the network structure.

[0005] To address the above problems, no effective solution has been proposed yet. Summary of the invention

[0006] The embodiment of the present invention provides a method for positioning a non-latitude and longitude detection point in railway communication, which is used to determine the positioning information of the non-latitude and longitude point, and is helpful for performing coverage analysis on the railway network structure and improving the effectiveness of railway network evaluation and optimization. The method includes:

[0007] Acquire communication data of multiple detection points collected by the detection equipment of the detection vehicle during driving, wherein the communication data includes: longitude and latitude information, kilometer mark information and receiving power information of the multiple detection points, wherein the receiving power information includes: multiple signal receiving power values, and a channel number and a base station identifier corresponding to each signal receiving power value;

[0008] When the communication data of the detection point lacks longitude and latitude information, the detection point lacking longitude and latitude information is determined as a detection point without longitude and latitude, and the other detection points are detection points with longitude and latitude; according to the kilometer mark information of multiple detection points, the detection point with longitude and latitude that has the smallest distance to the detection point without longitude and latitude is determined as a reference detection point, and the distance between the detection point without longitude and latitude and the reference detection point is used as the first distance;

[0009] According to the receiving power information of the detection point without longitude and latitude, determine the maximum signal receiving power value of the detection point without longitude and latitude, and the channel number and base station identifier corresponding to the maximum signal receiving power value; according to the channel number corresponding to the maximum signal receiving power value, determine the wavelength of the signal; according to the base station identifier corresponding to the maximum signal receiving power value, determine the reference base station;

[0010] Obtain a signal transmission power value of a reference base station, determine a signal propagation distance of the reference base station according to the signal transmission power value of the reference base station, a maximum signal reception power value of a point without longitude and latitude detection, and a wavelength of the signal, and use the signal propagation distance of the reference base station as a second distance;

[0011] The latitude and longitude information of the reference detection point and the latitude and longitude information of the reference base station are obtained, and the latitude and longitude information of the point without latitude and longitude detection is determined according to the first distance, the second distance, the latitude and longitude information of the reference detection point and the latitude and longitude information of the reference base station.

[0012] The embodiment of the present invention also provides a device for locating a detection point without longitude and latitude for railway communication, which is used to determine the positioning information of the point without longitude and latitude, and is helpful for performing coverage analysis on the railway network structure and improving the effectiveness of railway network evaluation and optimization. The device includes:

[0013] A communication data acquisition module is used to acquire communication data of multiple detection points collected by the detection equipment of the detection vehicle during driving, wherein the communication data includes: longitude and latitude information, kilometer mark information and receiving power information of the multiple detection points, wherein the receiving power information includes: multiple signal receiving power values, and the channel number and base station identifier corresponding to each signal receiving power value;

[0014] A reference detection point determination module is used to determine, when the communication data of a detection point lacks longitude and latitude information, that the detection point lacking longitude and latitude information is a detection point without longitude and latitude, and the remaining detection points are detection points with longitude and latitude; according to the kilometer mark information of multiple detection points, determine that the detection point with longitude and latitude that has the smallest distance to the detection point without longitude and latitude is a reference detection point, and use the distance between the detection point without longitude and latitude and the reference detection point as the first distance;

[0015] The reference base station determination module is used to determine the maximum signal receiving power value of the non-latitude and longitude detection point, as well as the channel number and base station identifier corresponding to the maximum signal receiving power value, according to the receiving power information of the non-latitude and longitude detection point; determine the wavelength of the signal according to the channel number corresponding to the maximum signal receiving power value; determine the reference base station according to the base station identifier corresponding to the maximum signal receiving power value;

[0016] A signal propagation distance determination module is used to obtain a signal transmission power value of a reference base station, determine a signal propagation distance of the reference base station according to the signal transmission power value of the reference base station, a maximum signal reception power value of a point without longitude and latitude detection, and a wavelength of the signal, and use the signal propagation distance of the reference base station as a second distance;

[0017] The latitude and longitude information determination module is used to obtain the latitude and longitude information of the reference detection point and the latitude and longitude information of the reference base station, and determine the latitude and longitude information of the non-latitude and longitude detection point based on the first distance, the second distance, the latitude and longitude information of the reference detection point and the latitude and longitude information of the reference base station.

[0018] An embodiment of the present invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned method for positioning railway communication points without longitude and latitude detection points when executing the computer program.

[0019] An embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for positioning the non-latitude and longitude detection points of the railway communication is implemented.

[0020] An embodiment of the present invention further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the above-mentioned method for positioning railway communication detection points without longitude and latitude.

[0021] In an embodiment of the present invention, communication data of multiple detection points collected by the detection equipment of the detection vehicle during driving are obtained; when the communication data of the detection points lack longitude and latitude information, the detection points lacking longitude and latitude information are determined as detection points without longitude and latitude, and the remaining detection points are detection points with longitude and latitude; based on the kilometer mark information of the multiple detection points, the detection point with longitude and latitude that has the shortest distance to the detection point without longitude and latitude is determined as the reference detection point, and the distance between the detection point without longitude and latitude and the reference detection point is used as the first distance; based on the receiving power information of the detection point without longitude and latitude, the maximum signal receiving power value of the detection point without longitude and latitude, as well as the channel number and base station identifier corresponding to the maximum signal receiving power value are determined; based on the maximum signal receiving power The wavelength of the signal is determined by the channel number corresponding to the value; the reference base station is determined according to the base station identifier corresponding to the maximum signal receiving power value; the signal transmission power value of the reference base station is obtained, and the signal propagation distance of the reference base station is determined according to the signal transmission power value of the reference base station, the maximum signal receiving power value of the detection point without longitude and latitude, and the wavelength of the signal, and the signal propagation distance of the reference base station is used as the second distance; the longitude and latitude information of the reference detection point and the longitude and latitude information of the reference base station are obtained, and the positioning information of the point without longitude and latitude is determined according to the first distance, the second distance, the longitude and latitude information of the reference detection point and the longitude and latitude information of the reference base station, which is helpful to conduct coverage analysis on the railway network structure and improve the effectiveness of railway network evaluation and optimization. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0023] Figure 1 It is a processing flow chart of the method for positioning a detection point without longitude and latitude in railway communication in an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of a specific example of the first distance in an embodiment of the present invention;

[0025] Figure 3 A flow chart of a method for determining a signal wavelength in an embodiment of the present invention;

[0026] Figure 4 It is a schematic diagram of a specific example of combining the first distance and the second distance in an embodiment of the present invention;

[0027] Figure 5 It is a structural schematic diagram of a positioning device without longitude and latitude detection points for railway communication in an embodiment of the present invention;

[0028] Figure 6 The figure is a schematic diagram of the structure of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0030] First, the technical terms in the embodiments of the present invention are introduced:

[0031] GSM-R (Global System for Mobile Communications–Railway) is a wireless communication standard for railway communications and applications. The European Railway Traffic Management System subsystem uses GSM-R to complete the communication between trains and dispatching centers. The system is based on GSM and EIRENE–MORANE. When the speed reaches 500 km / h (310 mile Every hour) without losing any communication.

[0032] Base station: A base station is a public mobile communication base station, which is an interface device for mobile devices to access the Internet. It is also a form of radio station. It refers to a radio transceiver station that transmits information between mobile phone terminals through a mobile communication exchange center within a certain radio coverage area.

[0033] Repeater: The repeater consists of antenna, RF duplexer, low noise amplifier, mixer, electrically adjustable attenuator, filter, power amplifier and other components or modules, including uplink and downlink amplification links. The basic working principle is: the downlink signal of the base station is received into the repeater by the forward antenna (donor antenna), the useful signal is amplified by the low noise amplifier, the noise signal in the signal is suppressed, and the signal-to-noise ratio (S / N) is improved; then it is down-converted to the intermediate frequency signal, filtered by the filter, amplified by the intermediate frequency, and then up-converted to the radio frequency by frequency shifting, amplified by the power amplifier, and transmitted to the mobile station by the backward antenna (retransmission antenna); at the same time, the uplink signal of the mobile station is received by the backward antenna, and processed by the uplink amplification link along the opposite path: that is, it is transmitted to the base station through the low noise amplifier, down converter, filter, intermediate amplifier, up converter, power amplifier, so as to achieve two-way communication between the base station and the mobile station.

[0034] The inventors have found that there are many factors that affect the propagation characteristics of GSM-R wireless signals, including the overall topography of the geographical area, such as plains, mountainous areas, forest areas, etc.; and the specific location of the railway, such as elevated roads, trenches, tunnels, etc. The complex terrain conditions have formed a certain barrier to the GSM-R signal, especially in medium and long tunnels where signal coverage is limited. The network structure affects the quality of the wireless network. A good wireless network structure requires good and accurate coverage, sufficient and balanced capacity, and reasonable and fine frequency. For the network structure analysis of the GSM-R system, in the existing network performance testing methods, the longitude and latitude of the detection point in the detection data are sometimes missing, which will hinder the coverage analysis of the network structure. Therefore, the inventors proposed a method for positioning detection points without longitude and latitude for railway communications to solve this type of problem.

[0035] Figure 1 FIG. 1 is a processing flow chart of a method for positioning a non-latitude and longitude detection point in railway communication according to an embodiment of the present invention. Figure 1 As shown, the method for locating a non-latitude and longitude detection point for railway communication in an embodiment of the present invention may include:

[0036] Step 101, obtaining communication data of multiple detection points collected by the detection equipment of the detection vehicle during driving, wherein the communication data includes: longitude and latitude information, kilometer mark information and receiving power information of the multiple detection points, wherein the receiving power information includes: multiple signal receiving power values, and the channel number and base station identifier corresponding to each signal receiving power value;

[0037] Step 102: when the communication data of the detection point lacks longitude and latitude information, the detection point lacking longitude and latitude information is determined as a detection point without longitude and latitude, and the other detection points are detection points with longitude and latitude; according to the kilometer mark information of multiple detection points, the detection point with longitude and latitude that has the smallest distance to the detection point without longitude and latitude is determined as a reference detection point, and the distance between the detection point without longitude and latitude and the reference detection point is used as the first distance;

[0038] Step 103: Determine the maximum signal receiving power value of the non-latitude and longitude detection point, and the channel number and base station identifier corresponding to the maximum signal receiving power value according to the receiving power information of the non-latitude and longitude detection point; determine the wavelength of the signal according to the channel number corresponding to the maximum signal receiving power value; determine the reference base station according to the base station identifier corresponding to the maximum signal receiving power value;

[0039] Step 104: Obtain a signal transmission power value of a reference base station, determine a signal propagation distance of the reference base station according to the signal transmission power value of the reference base station, a maximum signal reception power value of a detection point without longitude and latitude, and a wavelength of the signal, and use the signal propagation distance of the reference base station as a second distance;

[0040] Step 105: Obtain the latitude and longitude information of the reference detection point and the latitude and longitude information of the reference base station, and determine the latitude and longitude information of the point without latitude and longitude detection based on the first distance, the second distance, the latitude and longitude information of the reference detection point and the latitude and longitude information of the reference base station.

[0041] The specific execution steps of the method for locating a non-latitude and longitude detection point in railway communication according to an embodiment of the present invention are described below:

[0042] First, the communication data of multiple detection points collected by the detection equipment of the detection vehicle during driving are obtained, and the communication data include: longitude and latitude information, kilometer mark information and receiving power information of the multiple detection points, wherein the receiving power information includes: multiple signal receiving power values, and the channel number and base station identifier corresponding to each signal receiving power value. When the communication data of a detection point lacks longitude and latitude information, the detection point lacking longitude and latitude information is determined as a detection point without longitude and latitude, and the remaining detection points are detection points with longitude and latitude; based on the kilometer mark information of multiple detection points, the detection point with longitude and latitude that has the shortest distance to the detection point without longitude and latitude is determined as the reference detection point, and the distance between the detection point without longitude and latitude and the reference detection point is used as the first distance;

[0043] In specific implementation, multiple detection points can be numbered in ascending order according to the communication data collection time. Since the detection vehicle may pass through tunnels, jungles and other areas with poor network signals during driving, there will be multiple detection points with consecutive numbers, all of which are detection points without longitude and latitude. In this case, the longitude and latitude information of each detection point without longitude and latitude can be determined in sequence according to the numbering order.

[0044] The following content is explained by taking the first non-latitude and longitude detection point X with the earliest numbering sequence as an example. Although there may be multiple longitude and latitude detection points around the first non-latitude and longitude detection point X, the longeritude and latitude detection points that are closer to the first non-latitude and longitude detection point X have more reference value, that is, they are helpful to improve the accuracy of calculating the longitude and latitude information of the first non-latitude and longitude detection point X. Therefore, firstly, according to the kilometer mark information, the longitude and latitude detection point with the smallest distance from the first non-latitude and longitude detection point X can be determined as the reference detection point M, and the distance between the first non-latitude and longitude detection point X and the reference detection point M is taken as the first distance d1. Specifically, according to the kilometer mark information of the first non-latitude and longitude detection point X and the kilometer mark information of the reference detection point M, the difference between the kilometer marks of the two can be calculated, and the difference is the first distance d1.

[0045] Figure 2 FIG. 2 is a schematic diagram of a specific example of the first distance in an embodiment of the present invention. Figure 2As shown, after the first distance d1 between the first detection point X without longitude and latitude and the reference detection point M can be determined based on the kilometer marker information, the exact position of the first detection point X without longitude and latitude cannot be determined, but it can be known that the first detection point X without longitude and latitude is on the circular axis with the reference detection point M as the center and d1 as the radius.

[0046] After determining the reference detection point and the first distance, the maximum signal receiving power value of the non-latitude and longitude detection point and the channel number and base station identifier corresponding to the maximum signal receiving power value can be determined based on the receiving power information of the non-latitude and longitude detection point; the wavelength of the signal can be determined based on the channel number corresponding to the maximum signal receiving power value; the reference base station can be determined based on the base station identifier corresponding to the maximum signal receiving power value. In specific implementation, in addition to the base station, you can also choose to use a repeater, that is, the maximum signal receiving power value can correspond to the channel number and the repeater identifier, and the reference repeater can be determined based on the repeater identifier.

[0047] Figure 3 FIG. 4 is a flow chart of a method for determining a signal wavelength in an embodiment of the present invention. Figure 3 As shown, in one embodiment, determining the wavelength of a signal according to the channel number corresponding to the maximum signal receiving power value includes:

[0048] Step 301, determining the carrier frequency corresponding to the non-latitude and longitude detection point according to the channel number corresponding to the maximum signal receiving power value;

[0049] Step 302: Determine the wavelength of the signal according to the carrier frequency corresponding to the detection point without longitude and latitude.

[0050] In one embodiment, determining the carrier frequency corresponding to the non-latitude and longitude detection point according to the channel number corresponding to the maximum signal receiving power value includes:

[0051] According to the following formula, determine the carrier frequency corresponding to the point without longitude and latitude detection based on the channel number corresponding to the maximum signal receiving power value:

[0052] F=930+(C-999)×0.2

[0053] Wherein, F is the carrier frequency, and C is the channel number corresponding to the maximum signal receiving power value.

[0054] In one embodiment, determining the wavelength of the signal according to the carrier frequency corresponding to the detection point without longitude and latitude includes:

[0055] According to the following formula, the wavelength of the signal is determined based on the carrier frequency corresponding to the detection point without longitude and latitude:

[0056] λ=3×10 8 / F

[0057] Among them, λ is the wavelength of the signal and F is the carrier frequency.

[0058] In the specific implementation, the first detection point X without longitude and latitude is still taken as an example for explanation. In the prior art, it is known that the GSM-R downlink frequency band is 930MHz~934MHz, with a total frequency bandwidth of 4MHz, and the adjacent channel interval is 200kHz, then there are 21 carrier frequencies in total, and the channel numbers are from 999 to 1019, of which 930MHz and 934MHz are used as isolation frequencies, then there are actually 19 available carrier frequencies, corresponding to channel numbers from 1000 to 1018, for the first detection point X without longitude and latitude, there will be 19 signal receiving power values ​​of the carrier frequencies (in actual applications, the signal receiving power values ​​of some carrier frequencies may not be detected), for example, according to the receiving power information of the first detection point X without longitude and latitude, the maximum signal receiving power value of the first detection point X without longitude and latitude is determined to be R, wherein the channel number corresponding to R is C, and the corresponding base station is S, then it can be determined that the reference base station is base station S, and the wavelength λ of the signal can be determined according to the channel number C.

[0059] After the wavelength of the signal and the reference base station, the signal transmission power value of the reference base station can be obtained, and the signal propagation distance of the reference base station can be determined according to the signal transmission power value of the reference base station, the maximum signal receiving power value of the point without longitude and latitude detection and the wavelength of the signal, and the signal propagation distance of the reference base station is used as the second distance;

[0060] In one embodiment, determining the signal propagation distance of the reference base station according to the signal transmission power value of the reference base station, the maximum signal reception power value of the point without longitude and latitude detection, and the wavelength of the signal includes:

[0061] According to the following formula, the signal propagation distance of the reference base station is determined based on the signal transmission power value of the reference base station, the maximum signal receiving power value of the point without longitude and latitude detection, and the wavelength of the signal:

[0062]

[0063] Among them, P r is the maximum signal receiving power value of the point without longitude and latitude detection, P t is the signal transmission power value of the reference base station, λ is the wavelength of the signal, d2 is the signal propagation distance of the reference base station, that is, the second distance, G t is the transmitting antenna gain, which is the basic data of the reference base station. r is the receiving antenna gain, which is obtained by the detection equipment of the detection vehicle; k is the loss factor.

[0064] In the specific implementation, the first detection point X without longitude and latitude is still used as an example for explanation. Since the signal is lost during the propagation process, and the signal transmission power value of the reference base station S is known, assuming it is W, the signal propagation distance of the reference base station S, that is, the second distance d2, can be determined according to the signal transmission power value W of the reference base station S, the maximum signal receiving power value R of the first detection point X without longitude and latitude, and the wavelength λ of the signal;

[0065] Figure 4 FIG. 2 is a schematic diagram of a specific example of combining the first distance and the second distance in an embodiment of the present invention. Figure 4 As shown, the first detection point X without longitude and latitude is on the circular axis with the reference detection point M as the center and d1 as the radius. It can be determined that the first detection point X without longitude and latitude is also on the circular axis with the reference base station S as the center and d2 as the radius in combination with the signal propagation distance of the reference base station S, that is, the second distance d2.

[0066] Next, the latitude and longitude information of the reference detection point and the latitude and longitude information of the reference base station can be obtained, and the latitude and longitude information of the point without latitude and longitude detection can be determined based on the first distance, the second distance, the latitude and longitude information of the reference detection point and the latitude and longitude information of the reference base station.

[0067] In one embodiment, calculating the longitude and latitude information of the point without longitude and latitude detection according to the first distance, the second distance, the longitude and latitude information of the reference detection point, and the longitude and latitude information of the reference base station includes:

[0068] According to the following formula, the longitude and latitude information of the point without longitude and latitude detection is determined based on the first distance, the second distance, the longitude and latitude information of the reference detection point, and the longitude and latitude information of the reference base station:

[0069]

[0070]

[0071] Among them, d1 is the first distance, d2 is the second distance, Lat0 is the latitude of the detection point without longitude and latitude, Lng0 is the longitude of the detection point without longitude and latitude, Lat1 is the latitude of the reference detection point, Lng1 is the longitude of the reference detection point, Lat2 is the latitude of the reference base station, Lng2 is the longitude of the reference base station, and Asin is the inverse sine function.

[0072] In specific implementation, the longitude and latitude information of the first detection point X without longitude and latitude can be determined according to the first distance d1, the second distance d2, the longitude and latitude information of the reference detection point M, and the longitude and latitude information of the reference base station S. After determining the longitude and latitude information of the first detection point X without longitude and latitude, the first detection point X without longitude and latitude can be used as a detection point with longitude and latitude to continue calculating the longitude and latitude information of the next detection point without longitude and latitude. In the actual execution process, the distance between the detection points can be controlled to be kept in a smaller range. The smaller the distance between the detection points, the smaller the error obtained by the actual calculation, and the accuracy of the longitude and latitude information of the detection point without longitude and latitude can be improved.

[0073] The embodiment of the present invention also provides a device for locating a non-latitude and longitude detection point for railway communication, as described in the following embodiment. Since the principle of solving the problem by the device is similar to the method for locating a non-latitude and longitude detection point for railway communication, the implementation of the device can refer to the implementation of the method for locating a non-latitude and longitude detection point for railway communication, and the repeated parts will not be repeated.

[0074] Figure 5 FIG. 1 is a schematic diagram of the structure of a non-latitude and longitude detection point positioning device for railway communication in an embodiment of the present invention. Figure 5 As shown, the non-latitude and longitude detection point positioning device for railway communication in the embodiment of the present invention may specifically include:

[0075] The communication data acquisition module 501 is used to acquire the communication data of multiple detection points collected by the detection equipment of the detection vehicle during driving, wherein the communication data includes: longitude and latitude information, kilometer mark information and receiving power information of the multiple detection points, wherein the receiving power information includes: multiple signal receiving power values, and the channel number and base station identifier corresponding to each signal receiving power value;

[0076] The reference detection point determination module 502 is used to determine, when the communication data of the detection point lacks longitude and latitude information, that the detection point lacking longitude and latitude information is a detection point without longitude and latitude, and the other detection points are detection points with longitude and latitude; according to the kilometer mark information of multiple detection points, determine the detection point with longitude and latitude that has the smallest distance to the detection point without longitude and latitude as the reference detection point, and use the distance between the detection point without longitude and latitude and the reference detection point as the first distance;

[0077] The reference base station determination module 503 is used to determine the maximum signal receiving power value of the non-latitude and longitude detection point, and the channel number and base station identifier corresponding to the maximum signal receiving power value according to the receiving power information of the non-latitude and longitude detection point; determine the wavelength of the signal according to the channel number corresponding to the maximum signal receiving power value; determine the reference base station according to the base station identifier corresponding to the maximum signal receiving power value;

[0078] The signal propagation distance determination module 504 is used to obtain the signal transmission power value of the reference base station, determine the signal propagation distance of the reference base station according to the signal transmission power value of the reference base station, the maximum signal reception power value of the non-latitude and longitude detection point, and the wavelength of the signal, and use the signal propagation distance of the reference base station as the second distance;

[0079] The longitude and latitude information determination module 505 is used to obtain the longitude and latitude information of the reference detection point and the longitude and latitude information of the reference base station, and determine the longitude and latitude information of the point without longitude and latitude detection based on the first distance, the second distance, the longitude and latitude information of the reference detection point and the longitude and latitude information of the reference base station.

[0080] In one embodiment, the reference base station determination module 503 is specifically configured to:

[0081] According to the channel number corresponding to the maximum signal receiving power value, determine the carrier frequency corresponding to the point without longitude and latitude detection;

[0082] Determine the wavelength of the signal based on the carrier frequency corresponding to the detection point without longitude and latitude.

[0083] In one embodiment, the reference base station determination module 503 is specifically configured to:

[0084] According to the following formula, determine the carrier frequency corresponding to the point without longitude and latitude detection based on the channel number corresponding to the maximum signal receiving power value:

[0085] F=930+(C-999)×0.2

[0086] Wherein, F is the carrier frequency, and C is the channel number corresponding to the maximum signal receiving power value.

[0087] In one embodiment, the reference base station determination module 503 is specifically configured to:

[0088] According to the following formula, the wavelength of the signal is determined based on the carrier frequency corresponding to the detection point without longitude and latitude:

[0089] λ=3×10 8 / F

[0090] Among them, λ is the wavelength of the signal and F is the carrier frequency.

[0091] In one embodiment, the signal propagation distance determination module 504 is specifically used to:

[0092] According to the following formula, the signal propagation distance of the reference base station is determined based on the signal transmission power value of the reference base station, the maximum signal receiving power value of the point without longitude and latitude detection, and the wavelength of the signal:

[0093]

[0094] Among them, Pr is the maximum signal receiving power value of the point without longitude and latitude detection, P t is the signal transmission power value of the reference base station, λ is the wavelength of the signal, d2 is the signal propagation distance of the reference base station, that is, the second distance, G t is the transmitting antenna gain, which is the basic data of the reference base station. r is the receiving antenna gain, which is obtained by the detection equipment of the detection vehicle; k is the loss factor.

[0095] In one embodiment, the latitude and longitude information determination module 505 is specifically used to:

[0096] According to the following formula, the longitude and latitude information of the point without longitude and latitude detection is determined based on the first distance, the second distance, the longitude and latitude information of the reference detection point, and the longitude and latitude information of the reference base station:

[0097]

[0098]

[0099] Among them, d1 is the first distance, d2 is the second distance, Lat0 is the latitude of the detection point without longitude and latitude, Lng0 is the longitude of the detection point without longitude and latitude, Lat1 is the latitude of the reference detection point, Lng1 is the longitude of the reference detection point, Lat2 is the latitude of the reference base station, Lng2 is the longitude of the reference base station, and Asin is the inverse sine function.

[0100] Based on the above invention concept, Figure 6 As shown, the present invention also proposes a computer device 600, including a memory 610, a processor 620, and a computer program 630 stored in the memory 610 and executable on the processor 620, wherein the processor 620 implements the aforementioned railway communication non-latitude and longitude detection point positioning method when executing the computer program 630.

[0101] An embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for positioning the non-latitude and longitude detection points of the railway communication is implemented.

[0102] An embodiment of the present invention further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the method for positioning the railway communication without longitude and latitude detection points is implemented.

[0103] In summary, in the embodiment of the present invention, communication data of multiple detection points collected by the detection equipment of the detection vehicle during driving are obtained; when the communication data of the detection point lacks longitude and latitude information, the detection point lacking longitude and latitude information is determined as a detection point without longitude and latitude information, and the remaining detection points are detection points with longitude and latitude; according to the kilometer mark information of the multiple detection points, the detection point with longitude and latitude that has the smallest distance to the detection point without longitude and latitude is determined as a reference detection point, and the distance between the detection point without longitude and latitude and the reference detection point is used as the first distance; according to the received power information of the detection point without longitude and latitude, the maximum signal received power value of the detection point without longitude and latitude, as well as the channel number and base station identifier corresponding to the maximum signal received power value are determined; according to the maximum signal received power information of the detection point The wavelength of the signal is determined by the channel number corresponding to the receiving power value; the reference base station is determined according to the base station identifier corresponding to the maximum signal receiving power value; the signal transmission power value of the reference base station is obtained, and the signal propagation distance of the reference base station is determined according to the signal transmission power value of the reference base station, the maximum signal receiving power value of the detection point without longitude and latitude, and the wavelength of the signal, and the signal propagation distance of the reference base station is used as the second distance; the longitude and latitude information of the reference detection point and the longitude and latitude information of the reference base station are obtained, and the positioning information of the point without longitude and latitude is determined according to the first distance, the second distance, the longitude and latitude information of the reference detection point and the longitude and latitude information of the reference base station, which is helpful to conduct coverage analysis on the railway network structure and improve the effectiveness of railway network evaluation and optimization.

[0104] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0105] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0106] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0107] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0108] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for locating a non-latitude and longitude detection point for railway communication, characterized in that: include: Acquire communication data of multiple detection points collected by the detection equipment of the detection vehicle during driving, wherein the communication data includes: longitude and latitude information, kilometer mark information and receiving power information of the multiple detection points, wherein the receiving power information includes: multiple signal receiving power values, and a channel number and a base station identifier corresponding to each signal receiving power value; When the communication data of the detection point lacks longitude and latitude information, the detection point lacking longitude and latitude information is determined as a detection point without longitude and latitude, and the other detection points are detection points with longitude and latitude; according to the kilometer mark information of multiple detection points, the detection point with longitude and latitude that has the smallest distance to the detection point without longitude and latitude is determined as a reference detection point, and the distance between the detection point without longitude and latitude and the reference detection point is used as the first distance; According to the receiving power information of the detection point without longitude and latitude, determine the maximum signal receiving power value of the detection point without longitude and latitude, and the channel number and base station identifier corresponding to the maximum signal receiving power value; according to the channel number corresponding to the maximum signal receiving power value, determine the wavelength of the signal; according to the base station identifier corresponding to the maximum signal receiving power value, determine the reference base station; Obtain a signal transmission power value of a reference base station, determine a signal propagation distance of the reference base station according to the signal transmission power value of the reference base station, a maximum signal reception power value of a point without longitude and latitude detection, and a wavelength of the signal, and use the signal propagation distance of the reference base station as a second distance; The latitude and longitude information of the reference detection point and the latitude and longitude information of the reference base station are obtained, and the latitude and longitude information of the point without latitude and longitude detection is determined according to the first distance, the second distance, the latitude and longitude information of the reference detection point and the latitude and longitude information of the reference base station.

2. The method according to claim 1, characterized in that Determine the wavelength of the signal based on the channel number corresponding to the maximum signal receiving power value, including: According to the channel number corresponding to the maximum signal receiving power value, determine the carrier frequency corresponding to the point without longitude and latitude detection; Determine the wavelength of the signal based on the carrier frequency corresponding to the detection point without longitude and latitude.

3. The method according to claim 2, characterized in that According to the channel number corresponding to the maximum signal receiving power value, determine the carrier frequency corresponding to the point without longitude and latitude detection, including: According to the following formula, determine the carrier frequency corresponding to the point without longitude and latitude detection based on the channel number corresponding to the maximum signal receiving power value: F=930+(C-999)×0.2 Wherein, F is the carrier frequency, and C is the channel number corresponding to the maximum signal receiving power value.

4. The method according to claim 2, characterized in that Determine the wavelength of the signal based on the carrier frequency corresponding to the detection point without longitude and latitude, including: According to the following formula, the wavelength of the signal is determined based on the carrier frequency corresponding to the detection point without longitude and latitude: λ=3×10 8 / F Among them, λ is the wavelength of the signal and F is the carrier frequency.

5. The method according to claim 1, characterized in that According to the signal transmission power value of the reference base station, the maximum signal receiving power value of the point without longitude and latitude detection and the wavelength of the signal, the signal propagation distance of the reference base station is determined, including: According to the following formula, the signal propagation distance of the reference base station is determined based on the signal transmission power value of the reference base station, the maximum signal receiving power value of the point without longitude and latitude detection, and the wavelength of the signal: Among them, P r is the maximum signal receiving power value of the point without longitude and latitude detection, P t is the signal transmission power value of the reference base station, λ is the wavelength of the signal, d2 is the signal propagation distance of the reference base station, that is, the second distance, G t is the transmitting antenna gain, which is the basic data of the reference base station. r is the receiving antenna gain, which is obtained by the detection equipment of the detection vehicle; k is the loss factor.

6. The method according to claim 1, characterized in that Calculating the longitude and latitude information of the point without longitude and latitude detection according to the first distance, the second distance, the longitude and latitude information of the reference detection point, and the longitude and latitude information of the reference base station includes: According to the following formula, the longitude and latitude information of the point without longitude and latitude detection is determined based on the first distance, the second distance, the longitude and latitude information of the reference detection point, and the longitude and latitude information of the reference base station: Among them, d1 is the first distance, d2 is the second distance, Lat0 is the latitude of the detection point without longitude and latitude, Lng0 is the longitude of the detection point without longitude and latitude, Lat1 is the latitude of the reference detection point, Lng1 is the longitude of the reference detection point, Lat2 is the latitude of the reference base station, Lng2 is the longitude of the reference base station, and Asin is the inverse sine function.

7. A positioning device for railway communication without longitude and latitude detection points, characterized in that: include: A communication data acquisition module is used to acquire communication data of multiple detection points collected by the detection equipment of the detection vehicle during driving, wherein the communication data includes: longitude and latitude information, kilometer mark information and receiving power information of the multiple detection points, wherein the receiving power information includes: multiple signal receiving power values, and the channel number and base station identifier corresponding to each signal receiving power value; A reference detection point determination module is used to determine, when the communication data of a detection point lacks longitude and latitude information, that the detection point lacking longitude and latitude information is a detection point without longitude and latitude, and the remaining detection points are detection points with longitude and latitude; according to the kilometer mark information of multiple detection points, determine that the detection point with longitude and latitude that has the smallest distance to the detection point without longitude and latitude is a reference detection point, and use the distance between the detection point without longitude and latitude and the reference detection point as the first distance; The reference base station determination module is used to determine the maximum signal receiving power value of the non-latitude and longitude detection point, as well as the channel number and base station identifier corresponding to the maximum signal receiving power value, according to the receiving power information of the non-latitude and longitude detection point; determine the wavelength of the signal according to the channel number corresponding to the maximum signal receiving power value; determine the reference base station according to the base station identifier corresponding to the maximum signal receiving power value; A signal propagation distance determination module is used to obtain a signal transmission power value of a reference base station, determine a signal propagation distance of the reference base station according to the signal transmission power value of the reference base station, a maximum signal reception power value of a point without longitude and latitude detection, and a wavelength of the signal, and use the signal propagation distance of the reference base station as a second distance; The latitude and longitude information determination module is used to obtain the latitude and longitude information of the reference detection point and the latitude and longitude information of the reference base station, and determine the latitude and longitude information of the non-latitude and longitude detection point based on the first distance, the second distance, the latitude and longitude information of the reference detection point and the latitude and longitude information of the reference base station.

8. The device according to claim 7, characterized in that The reference base station determination module is specifically used for: According to the channel number corresponding to the maximum signal receiving power value, determine the carrier frequency corresponding to the point without longitude and latitude detection; Determine the wavelength of the signal based on the carrier frequency corresponding to the detection point without longitude and latitude.

9. The device according to claim 8, characterized in that The reference base station determination module is specifically used for: According to the following formula, determine the carrier frequency corresponding to the point without longitude and latitude detection based on the channel number corresponding to the maximum signal receiving power value: F=930+(C-999)×0.2 Wherein, F is the carrier frequency, and C is the channel number corresponding to the maximum signal receiving power value.

10. The device according to claim 8, characterized in that The reference base station determination module is specifically used for: According to the following formula, the wavelength of the signal is determined based on the carrier frequency corresponding to the detection point without longitude and latitude: λ=3×10 8 / F Among them, λ is the wavelength of the signal and F is the carrier frequency.

11. The device according to claim 7, characterized in that The signal propagation distance determination module is specifically used for: According to the following formula, the signal propagation distance of the reference base station is determined based on the signal transmission power value of the reference base station, the maximum signal receiving power value of the point without longitude and latitude detection, and the wavelength of the signal: Among them, P r is the maximum signal receiving power value of the point without longitude and latitude detection, P t is the signal transmission power value of the reference base station, λ is the wavelength of the signal, d2 is the signal propagation distance of the reference base station, that is, the second distance, G t is the transmitting antenna gain, which is the basic data of the reference base station. r is the receiving antenna gain, which is obtained by the detection equipment of the detection vehicle; k is the loss factor.

12. The device according to claim 7, characterized in that The latitude and longitude information determination module is specifically used for: According to the following formula, the longitude and latitude information of the point without longitude and latitude detection is determined based on the first distance, the second distance, the longitude and latitude information of the reference detection point, and the longitude and latitude information of the reference base station: Among them, d1 is the first distance, d2 is the second distance, Lat0 is the latitude of the detection point without longitude and latitude, Lng0 is the longitude of the detection point without longitude and latitude, Lat1 is the latitude of the reference detection point, Lng1 is the longitude of the reference detection point, Lat2 is the latitude of the reference base station, Lng2 is the longitude of the reference base station, and Asin is the inverse sine function.

13. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 6 is implemented.

14. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

15. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

Images