CN114397871B - Train network communication test system based on 5G - Google Patents
Train network communication test system based on 5G Download PDFInfo
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- CN114397871B CN114397871B CN202111600338.7A CN202111600338A CN114397871B CN 114397871 B CN114397871 B CN 114397871B CN 202111600338 A CN202111600338 A CN 202111600338A CN 114397871 B CN114397871 B CN 114397871B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0267—Fault communication, e.g. human machine interface [HMI]
- G05B23/027—Alarm generation, e.g. communication protocol; Forms of alarm
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a train network communication test system based on 5G, a vehicle-mounted test and display unit and a ground test and display unit; the vehicle-mounted test and display unit comprises a vehicle-mounted 5G unit which can automatically generate a message according to a set message transmission rule and transmit the generated message to the ground 5G receiving unit through the vehicle-mounted communication module, the ground 5G receiving unit transmits the received message to the ground logic processing unit, and the ground logic processing unit performs statistical analysis on the received message to obtain the communication capability between the vehicle-mounted 5G unit and the ground 5G receiving unit. The train network communication test system based on 5G has the advantages of simple structure, good automation degree, high test speed and the like.
Description
Technical Field
The invention relates to the technical field of train network communication, in particular to a train network communication test system based on 5G.
Background
As the intelligent operation and maintenance system is applied to a train, a large amount of train data needs to be transmitted to a ground server through a train-to-ground wireless transmission mode. At present, WIFI and 4G are mainly adopted for realizing vehicle-ground wireless transmission on a train, the bandwidth of the WIFI and 4G cannot meet the requirements of intelligent operation and maintenance system vehicle-ground wireless data transmission, and the 5G has the characteristics of high transmission rate, wide coverage and low delay, so that the WIFI and 4G is very suitable for the application requirements.
The traditional train network debugging technology adopts software and hardware for debugging in actual application, and has the problems that network faults are not generated, the actual capability of a network cannot be reflected even if the network faults pass the debugging, an equipment program needs to be developed again in the test process, the time is long, the test cost is high, and the test result is inaccurate.
Disclosure of Invention
The invention provides a train network communication test system based on 5G aiming at the problems.
The invention adopts the following technical means:
a 5G-based train network communication test system, comprising: the vehicle-mounted test and display unit and the ground test and display unit;
the vehicle-mounted test and display unit comprises a vehicle-mounted configuration module, a vehicle-mounted communication module, a vehicle-mounted logic processing module and a vehicle-mounted display module;
the vehicle-mounted configuration module is used for setting an IP address of the vehicle-mounted communication module to realize wired network communication between the vehicle-mounted communication module and the vehicle-mounted 5G unit, setting condition parameters for stopping sending the test message and transmitting the test message to the vehicle-mounted communication module, setting a message sending rule and transmitting the message sending rule to the vehicle-mounted logic processing module, and generating a starting test signal and transmitting the starting test signal to the vehicle-mounted logic processing module;
the vehicle-mounted logic processing module is used for generating a message according to a set message sending rule after receiving the starting test signal, transmitting the message to the vehicle-mounted communication module and stopping generating the message when receiving a message stopping sending signal;
the vehicle-mounted communication module is used for sending the received condition parameters of the test message which stops sending and the message to the vehicle-mounted 5G unit in a wired network communication mode;
the vehicle-mounted display module is used for displaying the set IP address of the vehicle-mounted communication module, the condition parameters for stopping sending the test message and the set message sending rule;
the vehicle-mounted 5G unit is used for transmitting the received condition parameters of the test message which is stopped from being transmitted and the message to the 5G ground receiving unit in a wireless network mode;
the 5G ground receiving unit sends the received condition parameters of the test message which is stopped from being sent and the message to the ground testing and displaying unit in a wired network mode;
the ground test and display unit comprises a ground configuration module, a ground communication module, a ground logic processing module and a ground display module;
the ground configuration module is used for setting an IP address of the ground communication module to realize wired network communication between the ground communication module and the 5G ground receiving unit;
the ground communication module is used for receiving the condition parameters of the test message which is sent by the 5G ground receiving unit and stopping sending the test message and the message and transmitting the test message to the ground logic processing unit, and is used for receiving the message which is transmitted by the ground logic processing module and stopping sending signal and sending the message to the 5G ground receiving unit;
the ground logic processing module is used for receiving the condition parameters of the test message and the message, carrying out statistical analysis on the message and comparing the statistical analysis with the condition parameters of the test message, judging whether the message reaches the set value of the condition parameters of the test message, if so, sending a message stop sending signal;
the ground display module is used for displaying the statistical analysis result of the message.
Further, the message sending rule is as follows:
(1) Continuously transmitting the message for N times with the interval period of the transmitted message being T and the length of the transmitted message being L, L +k, L+2k … L+ (N-1) k in sequence for the 1 st time;
(2) Continuously transmitting the message for N times with the interval period of the transmitted message being T-T and the length of the transmitted message being L, L +k, L+2k … L+ (N-1) k in sequence at the 2 nd time;
…
(m) analogizing, wherein the m-th time is to continuously send the message for N times with the interval period of the message sending being T- (m-1) T, the length of the message sending being L, L +k, L+2k … L+ (N-1) k in sequence;
wherein T is the interval period of the transmitted message, L is the length of the transmitted message, k is the message length constant, N is the number of times of transmitting the message, and T is the interval period constant of the transmitted message.
Further, the vehicle-mounted configuration module is also used for setting a selection test channel and a selection test mode.
Further, the condition parameters for stopping sending the test message include at least one of packet loss rate, delay time length and jitter time length.
Further, the statistical analysis of the messages comprises the total number of messages sent by the vehicle-mounted logic processing module, the total number of messages received by the ground logic processing module, the packet loss rate, the delay longest value, the jitter minimum value, the jitter maximum value and the test duration.
Further, the test channel comprises a 5G core network test, a 5G UPF network test and a 5GAirflash network test.
Further, the test mode limit test or stability test.
Further, the vehicle-mounted test and display unit further comprises a vehicle-mounted alarm module;
the vehicle-mounted logic processing module is also used for transmitting an alarm signal to the vehicle-mounted alarm module when receiving the message stop sending signal;
the ground test and display unit also comprises a ground alarm module;
the ground logic processing module is also used for transmitting an alarm signal to the ground alarm module when judging that the message reaches the set value of the condition parameter for stopping transmitting the test message.
Compared with the prior art, the 5G-based train network communication testing system disclosed by the invention has the following beneficial effects: the system solves the problems that the existing locomotive network test is slow in test, the test process is complex, the test result is not easy to check and the like when the existing locomotive network test is manually tested, and the system also has the advantages of simple structure, good automation degree and the like.
Drawings
FIG. 1 is a block diagram of a 5G-based train network communication test system disclosed by the invention;
FIG. 2 is a block diagram of a vehicle test and display unit of the present disclosure;
FIG. 3 is a block diagram of a floor test and display unit according to the present disclosure;
FIG. 4 is a schematic diagram of content displayed by the in-vehicle display module;
fig. 5 is a schematic diagram of content displayed by the floor display module.
In the figure: 1. the system comprises a vehicle-mounted test and display unit 10, a vehicle-mounted communication module 11, a vehicle-mounted logic processing module 12, a vehicle-mounted display module 13, a vehicle-mounted configuration module 14, a vehicle-mounted alarm module 2, a ground test and display unit 20, a ground communication module 21, a ground logic processing module 22, a ground display module 23, a ground configuration module 24, a ground alarm module 3, a vehicle-mounted 5G unit 4 and a 5G ground receiving unit.
Detailed Description
As shown in fig. 1, the system for testing 5G-based train network communication disclosed by the invention comprises: a vehicle-mounted test and display unit 1 and a ground test and display unit 2;
as shown in fig. 2, the vehicle-mounted test and display unit comprises a vehicle-mounted configuration module 13, a vehicle-mounted communication module 10, a vehicle-mounted logic processing module 11 and a vehicle-mounted display module 12;
the vehicle-mounted configuration module 13 is configured to set an IP address of the vehicle-mounted communication module 10 to implement wired network communication between the vehicle-mounted communication module 10 and the vehicle-mounted 5G unit 3, set a condition parameter for stopping sending a test message and transmit the test message to the vehicle-mounted communication module 10, set a message sending rule and transmit the message to the vehicle-mounted logic processing module 11, and generate a start test signal and transmit the start test signal to the vehicle-mounted logic processing module 11;
the vehicle-mounted logic processing module 11 is used for generating a message according to a set message sending rule after receiving the start test signal, transmitting the message to the vehicle-mounted communication module 10, and stopping generating the message when receiving a message stopping sending signal;
the vehicle-mounted communication module 10 is configured to send the received condition parameters of the test message and the received message to the vehicle-mounted 5G unit 3 through a wired network communication manner;
the vehicle-mounted display module 12 is configured to display the set IP address of the vehicle-mounted communication module 10, the condition parameter for stopping sending the test message, the set message sending rule, and a start test signal button;
the vehicle-mounted 5G unit 3 is used for sending the received condition parameters of the test message which stops sending and the message to the 5G ground receiving unit 4 in a wireless network mode;
the 5G ground receiving unit 4 sends the received condition parameters of the test message stopped from sending and the message to the ground testing and displaying unit 2 in a wired network mode;
as shown in fig. 3, the ground test and display unit 2 includes a ground configuration module 23, a ground communication module 20, a ground logic processing module 21, and a ground display module 22;
the ground configuration module 23 is configured to set an IP address of the ground communication module 20 to implement wired network communication between the ground communication module 20 and the 5G ground receiving unit 4;
the ground communication module 20 is configured to receive the condition parameter of the test message sent by the 5G ground receiving unit 4 and the message, send the test message to the ground logic processing unit 21, and receive a message stop sending signal sent by the ground logic processing module 21 and send the message stop sending signal to the 5G ground receiving unit 4;
the ground logic processing module 21 is configured to receive the condition parameter of the test message and the message, perform statistical analysis on the message and compare the statistical analysis with the condition parameter of the test message, determine whether the message reaches a set value of the condition parameter of the test message, and if yes, send a message stop sending signal;
the ground display module is used for displaying the statistical analysis result of the message.
Specifically, the testing process performed by using the 5G-based train network communication testing system disclosed by the invention is as follows: the vehicle-mounted configuration module and the ground configuration module respectively set the IP addresses of the vehicle-mounted communication module and the ground communication module, so that the vehicle-mounted communication module, the vehicle-mounted 5G unit, the ground 5G receiving unit and the ground communication unit can communicate, and meanwhile, the vehicle-mounted configuration module sets the condition parameters for stopping sending the test message and the related parameters for setting the message sending rule, and in the embodiment, the message sending rule is as follows:
(1) Continuously transmitting the message for N times with the interval period of the transmitted message being T and the length of the transmitted message being L, L +k, L+2k … L+ (N-1) k in sequence for the 1 st time;
(2) Continuously transmitting the message for N times with the interval period of the transmitted message being T-T and the length of the transmitted message being L, L +k, L+2k … L+ (N-1) k in sequence at the 2 nd time;
…
(m) analogizing, wherein the m-th time is to continuously send the message for N times with the interval period of the message sending being T- (m-1) T, the length of the message sending being L, L +k, L+2k … L+ (N-1) k in sequence;
wherein T is an interval period of a transmitted message, L is a length of the transmitted message, k is a message length constant, N is a number of times of transmitting the message, T is an interval period constant of the transmitted message, therefore, the vehicle-mounted configuration module sets related parameters for setting a message transmission rule including an initial interval period of the transmitted message, i.e., T, a message time difference between two adjacent times, i.e., T, an initial length of the transmitted message, i.e., L, a length difference between two times of the message, i.e., k, and a number of times of continuously transmitting the message, for example, the set initial interval period T (i.e., a characteristic period in fig. 4) is 20ms, a 64-byte length message is transmitted 1000 times, then 128 bytes are transmitted 1000 times, so as to finish transmitting the message with a length of 1432 bytes for 1000 times, then the period is shortened by 2ms, and the original transmission mode is repeated until a result of ground feedback exceeds a parameter specification of a test setting interface, and the condition parameters of the transmission stop test message include at least one of a packet loss rate, a delay time and a jitter time, therefore, the configuration module sets a condition of the transmission stop test message includes a delay time and a jitter time, and the condition of 10ms is set as a transmission stop time, and the condition is set by the vehicle-mounted frame 10.
After corresponding configuration of the configuration module, the vehicle-mounted logic processing module automatically generates a message according to a corresponding message rule, and transmits the generated message to the vehicle-mounted communication module, and the vehicle-mounted communication module transmits the generated message and the condition parameters of stopping transmitting the test message to the ground test and display unit through the vehicle-mounted 5G unit and the ground 5G receiving unit.
The ground communication module transmits the received condition parameters of the test message to the ground logic processing unit, the ground logic processing module performs statistical analysis on the received message and compares the received message with the condition parameters of the test message to judge whether the message reaches the set values of the condition parameters of the test message to be stopped, if so, a message stopping signal is sent; the content of each transmitted message comprises message data of time (millisecond level), life signal (accumulation counter) and set length required by test, the ground logic processing module carries out statistic analysis on the received message, the statistic analysis comprises the received message length, the received message time and the received message life signal, the statistic analysis comprises the calculation of corresponding packet loss rate, delay time or jitter time by comparing with corresponding values in the message content, the comparison is carried out on the counted packet loss rate, delay time or jitter time of the received message and the packet loss rate, delay time or jitter time of the condition parameters of the stopped transmission test message set by the vehicle-mounted configuration module, whether the set value of the condition parameters of the stopped transmission test message is reached is judged, if yes, the message stopped transmission signal is sent, the sent message stopped transmission signal is transmitted to the vehicle-mounted logic processing module through the ground communication module, the 5G ground receiving unit, the vehicle-mounted 5G unit and the vehicle-mounted communication module, and the vehicle-mounted logic processing module stops producing the message and stopping test after receiving the message stopped transmission signal.
The train network communication test system based on 5G has the advantages that as the train network communication test system based on 5G is provided with the vehicle-mounted logic processing module, the logic processing module can automatically generate the message according to the set message transmission rule and transmit the message to the ground logic processing unit through the train network system (the vehicle-mounted 5G unit and the ground 5G receiving unit), the ground logic processing unit carries out statistic analysis on the received message, so that the communication capacity of the vehicle-mounted network and the ground communication network can be obtained, the whole test process is concentrated on one test platform, the original process requiring manual one-step test is realized by a machine, the problems of slow manual test, complex test process, difficult checking of test results and the like are solved, and the test efficiency and the test accuracy are improved; the test can be carried out on the ground or along with the vehicle for a long time, the feasibility of the scheme can be tested, the actual operation effect under the condition that various interferences exist in the operation process can be tested, and the recorded data can be used for reacting and improving the design of the research personnel.
Further, the vehicle configuration module 13 is further configured to set a selection test channel and a selection test mode, where the test channels include a 5G core network test, a 5G UPF network test, and a 5G air flash network test, so as to test different channels, and the test modes include a limit test and a stability test. The limit test is to test by a method (maximum Tmax, each test shortens Tms) of gradually shortening the transmission period through fixing the message length (maximum Lmax, minimum Lmin, starting the test from the minimum length and increasing the gradient L) according to the set parameters of the packet loss rate, the delay time and the jitter time, repeatedly until the ending condition is met, recording the last message length and period, then increasing the length to restart the test from the maximum period until the maximum length is tested, and outputting a list until the corresponding length from Lmax to the minimum period of Lmin which does not meet the testing condition; and the stability test is to fix the message length, the period and the test duration, continuously send the message with the set length to the test duration in the set period, and consider that the stability test is passed if the condition that the test end condition is met does not appear.
Further, as shown in fig. 5, the statistical analysis of the messages further includes a total number of messages sent by the vehicle-mounted logic processing module, a total number of messages received by the ground logic processing module, a packet loss rate, a delay longest value, a jitter minimum value, a jitter maximum value and a test duration, and all statistical analysis results can be displayed through a ground display unit in a form of a graph or a table, etc., so that a worker can intuitively acquire various data and information.
Further, the vehicle-mounted test and display unit further comprises a vehicle-mounted alarm module;
the vehicle-mounted logic processing module is also used for transmitting an alarm signal to the vehicle-mounted alarm module when receiving the message stop sending signal;
the ground test and display unit also comprises a ground alarm module;
the ground logic processing module is also used for transmitting an alarm signal to the ground alarm module when judging that the message reaches the set value of the condition parameter of the test message, and the alarm module can be a voice alarm module or an indicator lamp alarm module when the test condition is reached because the vehicle-mounted alarm module and the ground alarm module are arranged.
The system disclosed by the invention does not need the participation of a tester again in the whole test execution process, the tester can perform other works, and the voice prompt is provided after the test is finished, so that the occupied working time of the tester is greatly reduced; the test system is divided into an on-vehicle part and an off-vehicle part, and an on-vehicle tester and an off-vehicle tester can know the test content and the result in real time without adopting other contact ways, so that the working intensity of the tester is greatly reduced; the test content can be selected according to actual needs, and the highest performance data of the network can be obtained or the integrity of the network can be verified.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. A train network communication test system based on 5G is characterized in that: comprising the following steps: the vehicle-mounted test and display unit and the ground test and display unit;
the vehicle-mounted test and display unit comprises a vehicle-mounted configuration module, a vehicle-mounted communication module, a vehicle-mounted logic processing module and a vehicle-mounted display module;
the vehicle-mounted configuration module is used for setting an IP address of the vehicle-mounted communication module to realize wired network communication between the vehicle-mounted communication module and the vehicle-mounted 5G unit, setting condition parameters for stopping sending the test message and transmitting the test message to the vehicle-mounted communication module, setting a message sending rule and transmitting the message sending rule to the vehicle-mounted logic processing module, and generating a starting test signal and transmitting the starting test signal to the vehicle-mounted logic processing module;
the vehicle-mounted logic processing module is used for generating a message according to a set message sending rule after receiving the starting test signal, transmitting the message to the vehicle-mounted communication module and stopping generating the message when receiving a message stopping sending signal;
the vehicle-mounted communication module is used for sending the received condition parameters of the test message which stops sending and the message to the vehicle-mounted 5G unit in a wired network communication mode;
the vehicle-mounted display module is used for displaying the set IP address of the vehicle-mounted communication module, the condition parameters for stopping sending the test message and the set message sending rule;
the vehicle-mounted 5G unit is used for transmitting the received condition parameters of the test message which is stopped from being transmitted and the message to the 5G ground receiving unit in a wireless network mode;
the 5G ground receiving unit sends the received condition parameters of the test message which is stopped from being sent and the message to the ground testing and displaying unit in a wired network mode;
the ground test and display unit comprises a ground configuration module, a ground communication module, a ground logic processing module and a ground display module;
the ground configuration module is used for setting an IP address of the ground communication module to realize wired network communication between the ground communication module and the 5G ground receiving unit;
the ground communication module is used for receiving the condition parameters of the test message which is sent by the 5G ground receiving unit and stopping sending the test message and the message and transmitting the test message to the ground logic processing unit, and is used for receiving the message which is transmitted by the ground logic processing module and stopping sending signal and sending the message to the 5G ground receiving unit;
the ground logic processing module is used for receiving the condition parameters of the test message and the message, carrying out statistical analysis on the message and comparing the statistical analysis with the condition parameters of the test message, judging whether the message reaches the set value of the condition parameters of the test message, if so, sending a message stop sending signal;
the ground display module is used for displaying the statistical analysis result of the message.
2. The 5G-based train network communication test system of claim 1, wherein:
the message sending rule is as follows:
(1) Continuously transmitting the message for N times with the interval period of the transmitted message being T and the length of the transmitted message being L, L +k, L+2k … L+ (N-1) k in sequence for the 1 st time;
(2) Continuously transmitting the message for N times with the interval period of the transmitted message being T-T and the length of the transmitted message being L, L +k, L+2k … L+ (N-1) k in sequence at the 2 nd time;
…
(m) analogizing, wherein the m-th time is to continuously send the message for N times with the interval period of the message sending being T- (m-1) T, the length of the message sending being L, L +k, L+2k … L+ (N-1) k in sequence;
wherein T is the interval period of the transmitted message, L is the length of the transmitted message, k is the message length constant, N is the number of times of transmitting the message, and T is the interval period constant of the transmitted message.
3. The 5G-based train network communication test system of claim 2, wherein: the vehicle-mounted configuration module is also used for setting a selection test channel and a selection test mode.
4. The 5G based train network communication test system of claim 3, wherein:
the condition parameters for stopping sending the test message include at least one of packet loss rate, delay time length and jitter time length.
5. The 5G based train network communication test system according to any one of claims 1 to 4, wherein:
the statistical analysis of the messages comprises the total number of messages sent by the vehicle-mounted logic processing module, the total number of messages received by the ground logic processing module, the packet loss rate, the longest delay value, the minimum jitter value, the maximum jitter value and the test duration.
6. The 5G based train network communication test system of claim 3, wherein: the test channel comprises a 5G core network test, a 5G UPF network test and a 5G AirFlash network test.
7. The 5G based train network communication test system of claim 3, wherein: the test mode limit test or the stability test.
8. The 5G based train network communication test system of claim 5, wherein:
the vehicle-mounted test and display unit further comprises a vehicle-mounted alarm module;
the vehicle-mounted logic processing module is also used for transmitting an alarm signal to the vehicle-mounted alarm module when receiving the message stop sending signal;
the ground test and display unit also comprises a ground alarm module;
the ground logic processing module is also used for transmitting an alarm signal to the ground alarm module when judging that the message reaches the set value of the condition parameter for stopping transmitting the test message.
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