CN114397871A - Train network communication test system based on 5G - Google Patents
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Abstract
The invention discloses a train network communication test system based on 5G, which comprises a vehicle-mounted test and display unit and a ground test and display unit; the vehicle-mounted testing and displaying unit can automatically generate messages according to set message sending rules and send the generated messages to the vehicle-mounted 5G unit through the vehicle-mounted communication module, the vehicle-mounted 5G unit is sent to the ground 5G receiving unit through a wireless network, the ground 5G receiving unit sends the received messages to the ground logic processing unit, and the ground logic processing unit conducts statistical analysis on the received messages to obtain the communication capacity between the vehicle-mounted 5G unit and the ground 5G receiving unit. The train network communication test system based on 5G disclosed by the invention 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 testing system based on 5G.
Background
With the application of the intelligent operation and maintenance system to trains, a large amount of train data needs to be sent to the ground server in a train-ground wireless transmission mode. At present, WIFI and 4G are mainly adopted for realizing train-ground wireless transmission on a train, the bandwidth of the WIFI and 4G cannot meet the requirement of intelligent operation and maintenance system train-ground wireless data transmission, and the 5G has the characteristics of high transmission rate, wide coverage and low time delay, so that the WIFI and 4G is very suitable for the application requirement.
The traditional train network debugging technology adopts software and hardware which are actually applied to debugging, the actual capability of a network cannot be reflected even if the debugging is passed without network faults, and an equipment program needs to be developed again in the testing process, so that the problems of long time consumption, high testing cost and inaccurate testing result are solved.
Disclosure of Invention
The invention provides a train network communication test system based on 5G aiming at the problems.
The technical means adopted by the invention are as follows:
a train network communication test system based on 5G comprises: the system comprises a vehicle-mounted testing and displaying unit and a ground testing and displaying unit;
the vehicle-mounted testing and displaying 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 condition parameters 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 sending stopping signal;
the vehicle-mounted communication module is used for sending the received condition parameters of the test message stopping sending and the message to a 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 parameter for stopping sending the test message and the set message sending rule;
the vehicle-mounted 5G unit is used for sending the received condition parameters of the test message stopping sending 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 stopping sending and the message to the ground testing and displaying unit in a wired network mode;
the ground testing and displaying unit comprises a ground configuration module, a ground communication module, a ground logic processing module and a ground displaying module;
the ground configuration module is used for setting an IP address of the ground communication module so as 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 stopping sending and sent by the 5G ground receiving unit and the message, transmitting the condition parameters and the message to the ground logic processing unit, and receiving a message stopping sending signal transmitted by the ground logic processing module 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 stopping sending and the message, performing statistical analysis on the message, comparing the statistical analysis with the condition parameters of the test message stopping sending, judging whether the message reaches a set value of the condition parameters of the test message stopping sending, and if so, sending a message sending stopping signal;
and the ground display module is used for displaying the statistical analysis result of the message.
Further, the message sending rule is as follows:
(1) the 1 st time, with the interval period of sending the message as T and the length of the message sent as L, L + k and L +2k … L + (N-1) k in sequence, continuously sending the message for N times;
(2) the 2 nd time, with the interval period of the message sending as T-T and the length of the message sending as L, L + k and L +2k … L + (N-1) k in sequence, continuously sending the message for N times;
…
(m) repeating the steps, wherein the interval period of the message sending at the mth time is T- (m-1) T, the length of the message sending at the mth time is L, L + k, L +2k … L + (N-1) k, and the message is continuously sent for N times;
wherein, T is an interval period of sending messages, L is a length of sending messages, k is a message length constant, N is a number of times of sending messages, and T is an interval period constant of sending messages.
Further, the vehicle-mounted configuration module is also used for setting a selection test channel and a selection test mode.
Further, the condition parameter for stopping sending the test packet includes at least one of a packet loss rate, a delay time length and a jitter time length.
Further, the statistical analysis of the messages includes 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.
Further, the test channels comprise a 5G core network test, a 5G UPF network test and a 5GAirflash network test.
Further, the test mode limit test or the stability test.
Furthermore, the vehicle-mounted testing and displaying unit also comprises a vehicle-mounted alarming module;
the vehicle-mounted logic processing module is also used for transmitting an alarm signal to the vehicle-mounted alarm module when receiving a message sending stop signal;
the ground testing and displaying unit also comprises a ground alarming module;
and 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 sending the test message.
Compared with the prior art, the train network communication test system based on 5G disclosed by the invention has the following beneficial effects: the system solves the problems that the existing locomotive network test is slow in test, complex in test process, difficult in test result viewing and the like when the test is carried out manually, and has the advantages of simple structure, good automation degree and the like.
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FIG. 1 is a block diagram of a 5G-based train network communication testing system disclosed by the invention;
FIG. 2 is a block diagram of the vehicle test and display unit disclosed in the present invention;
FIG. 3 is a block diagram of a ground test and display unit according to the present disclosure;
FIG. 4 is a schematic view of the contents displayed by the in-vehicle display module;
fig. 5 is a schematic diagram of contents displayed by the floor display module.
In the figure: 1. the system comprises a vehicle-mounted testing and displaying unit, 10, a vehicle-mounted communication module, 11, a vehicle-mounted logic processing module, 12, a vehicle-mounted displaying module, 13, a vehicle-mounted configuration module, 14, a vehicle-mounted alarming module, 2, a ground testing and displaying unit, 20, a ground communication module, 21, a ground logic processing module, 22, a ground displaying module, 23, a ground configuration module, 24, a ground alarming module, 3, a vehicle-mounted 5G unit and 4, 5G ground receiving units.
Detailed Description
Fig. 1 shows a 5G-based train network communication test system disclosed by the present invention, which includes: a vehicle-mounted testing and displaying unit 1 and a ground testing and displaying unit 2;
as shown in fig. 2, the vehicle-mounted testing and displaying unit includes 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, to set a condition parameter for stopping sending a test packet and transmit the condition parameter to the vehicle-mounted communication module 10, to set a packet sending rule and transmit the packet sending rule to the vehicle-mounted logic processing module 11, and to 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 configured to generate a message according to a set message sending rule after receiving the start test signal, transmit the message to the vehicle-mounted communication module 10, and stop generating the message when receiving a message stop sending signal;
the vehicle-mounted communication module 10 is configured to send the received condition parameters of the test message stop being sent and the message to the vehicle-mounted 5G unit 3 in 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 packet, the set packet sending rule, and a test signal start button;
the vehicle-mounted 5G unit 3 is used for sending the received condition parameters of the test message stopping 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 stopping sending and the message to the ground testing and displaying unit 2 in a wired network mode;
as shown in fig. 3, the ground testing and displaying 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 parameters of the test message transmission stop sent by the 5G ground receiving unit 4 and the message, send the condition parameters and the message to the ground logic processing unit 21, and receive a message transmission stop signal transmitted by the ground logic processing module 21 and send the message to the 5G ground receiving unit 4;
the ground logic processing module 21 is configured to receive the condition parameter for stopping sending the test packet and the packet, perform statistical analysis on the packet, compare the statistical analysis with the condition parameter for stopping sending the test packet, determine whether the packet reaches a set value of the condition parameter for stopping sending the test packet, and if so, send a packet stop sending signal;
and the ground display module is used for displaying the statistical analysis result of the message.
Specifically, the test process of the train network communication test system based on 5G 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 with each other, and meanwhile, the vehicle-mounted configuration module sets a condition parameter for stopping sending the test message and a related parameter for setting a message sending rule, wherein in this embodiment, the message sending rule is as follows:
(1) the 1 st time, with the interval period of sending the message as T and the length of the message sent as L, L + k and L +2k … L + (N-1) k in sequence, continuously sending the message for N times;
(2) the 2 nd time, with the interval period of the message sending as T-T and the length of the message sending as L, L + k and L +2k … L + (N-1) k in sequence, continuously sending the message for N times;
…
(m) repeating the steps, wherein the interval period of the message sending at the mth time is T- (m-1) T, the length of the message sending at the mth time is L, L + k, L +2k … L + (N-1) k, and the message is continuously sent for N times;
wherein, T is the interval period of sending the message, L is the length of sending the message, k is the message length constant, N is the number of times of sending the message, and T is the interval period constant of sending the message, therefore, the vehicle-mounted configuration module sets the relevant parameters for setting the message sending rule to include the initial interval period of sending the message, i.e. T, the time difference of two adjacent messages, i.e. T, the initial length of sending the message, i.e. L, the length difference of two messages, i.e. k, and the number of times of continuously sending the message, such as setting the initial interval period T (i.e. the characteristic period in fig. 4) to be 20ms, sending the message with the length of 64 bytes 1000 times, then sending the message with the length of 128 bytes 1000 times, and so until the message with the length of 1432 bytes is sent, then the period is shortened by 2ms, the original sending mode is repeated until the ground feedback result is that the test result exceeds the parameter specification of the test setting interface, and then the sending is stopped, the condition parameter for stopping sending the test message includes at least one of a packet loss rate, a delay time length and a jitter time length, therefore, the vehicle-mounted configuration module sets the condition parameter for stopping sending the test message to include the packet loss rate, the delay time length and the jitter time length, as shown in fig. 4, the packet loss rate is set to be 10%, the delay time length is 10ms and the jitter time length is 10ms, each condition parameter is provided with a check box, the parameter is selected as a judgment parameter for stopping sending the message, and the condition parameter for stopping sending the test message is transmitted to the vehicle-mounted communication module.
After the 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 for 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 stopping sending and the message to the ground logic processing unit, the ground logic processing module performs statistical analysis on the received message and compares the statistical analysis with the condition parameters of the test message stopping sending to judge whether the message reaches the set value of the condition parameters of the test message stopping sending, and if so, sends a message sending stopping signal; the content of each sent message comprises the time (millisecond level) of sending the message required by the test, a life signal (accumulation counter) and message data with set length, the ground logic processing module carries out statistical analysis on the received message, the length of the received message, the time of the received message and the life signal of the received message, compares the received message with corresponding values in the content of the message to calculate corresponding packet loss rate, delay time or jitter time, compares the statistical packet loss rate, delay time or jitter time of the received message with the packet loss rate, delay time or jitter time in the condition parameters of stopping sending the test message set by the vehicle-mounted configuration module to judge whether the set value of the condition parameters of stopping sending the test message is reached, if the message stops sending the signal, the sent message stops sending the signal through the ground communication module, And the 5G ground receiving unit, the vehicle-mounted 5G unit and the vehicle-mounted communication module are transmitted to the vehicle-mounted logic processing module, and the vehicle-mounted logic processing module stops producing the message and stops testing after receiving the message sending stop signal.
The train network communication test system based on 5G disclosed by the invention is provided with the vehicle-mounted logic processing module, the logic processing module can automatically generate a message according to a set message sending rule and send 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 statistical analysis on the received message, and further the communication capacity between the vehicle-mounted network and the ground communication network can be obtained, the whole test process is integrated on a test platform, the original process needing manual one-step test is changed into a machine to be realized, the problems of slow manual test, complex test process, difficulty in checking the test result 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 on 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 reflected and the research and development personnel can improve the design.
Further, the vehicle-mounted configuration module 13 is further configured to set a selection test channel and a selection test mode, specifically, the test channel includes a 5G core network test, a 5G UPF network test, and a 5G AirFlash network test so as to test different channels, and the test mode includes a limit test or a stable test. The limit test is that according to the set parameters of packet loss rate, delay time and jitter time, the test is carried out by a method (maximum Tmax, Tms is shortened in each test) for gradually shortening the sending period by fixing the message length (maximum Lmax, minimum Lmin, test is started from the minimum length, and gradient is increased by L), 10000 sending are tested each time, if the ending condition is not met, the sending period is shortened and sent again for 10000 times, the steps are repeated until the ending condition is met, the last message length and period are recorded, then the length is increased, the test is started from the maximum period until the maximum length is tested, and a list is produced until the maximum length is tested, and the minimum period which does not meet the testing condition and corresponds to the length from Lmax to Lmin; 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 if the condition meeting the test ending condition does not appear, the stability test is considered to pass.
Further, as shown in fig. 5, the statistical analysis of the messages further includes the total number of the messages sent by the vehicle-mounted logic processing module, the total number of the messages received by the ground logic processing module, a packet loss rate, a maximum delay value, a minimum jitter value, a maximum jitter value, and a test duration, and all statistical analysis results can be displayed through a ground display unit in the form of a graph or a table, so that a worker can visually obtain various data and information.
Furthermore, the vehicle-mounted testing and displaying unit also comprises a vehicle-mounted alarming module;
the vehicle-mounted logic processing module is also used for transmitting an alarm signal to the vehicle-mounted alarm module when receiving a message sending stop signal;
the ground testing and displaying unit also comprises a ground alarming 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 a set value of the condition parameter for stopping sending the test message, and the vehicle-mounted alarm module and the ground alarm module are arranged, so that when the test stopping condition is reached, an alarm can be sent to an operator through the alarm module, the operator can check and process the test result in time, and the alarm module can be a voice alarm module or an indicator lamp alarm module.
The system disclosed by the invention does not need the tester to participate again in the whole test execution process, the tester can perform other work, 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, so that on-vehicle testers and off-vehicle testers can know test contents and results in real time without adopting other contact ways, and the working intensity of the testers 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 only the integrity of the network can be verified.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a train network communication test system based on 5G which characterized in that: the method comprises the following steps: the system comprises a vehicle-mounted testing and displaying unit and a ground testing and displaying unit;
the vehicle-mounted testing and displaying 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 condition parameters 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 sending stopping signal;
the vehicle-mounted communication module is used for sending the received condition parameters of the test message stopping sending and the message to a 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 parameter for stopping sending the test message and the set message sending rule;
the vehicle-mounted 5G unit is used for sending the received condition parameters of the test message stopping sending 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 stopping sending and the message to the ground testing and displaying unit in a wired network mode;
the ground testing and displaying unit comprises a ground configuration module, a ground communication module, a ground logic processing module and a ground displaying module;
the ground configuration module is used for setting an IP address of the ground communication module so as 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 stopping sending and sent by the 5G ground receiving unit and the message, transmitting the condition parameters and the message to the ground logic processing unit, and receiving a message stopping sending signal transmitted by the ground logic processing module 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 stopping sending and the message, performing statistical analysis on the message, comparing the statistical analysis with the condition parameters of the test message stopping sending, judging whether the message reaches a set value of the condition parameters of the test message stopping sending, and if so, sending a message sending stopping signal;
and the ground display module is used for displaying the statistical analysis result of the message.
2. The 5G-based train network communication test system according to claim 1, wherein:
the message sending rule is as follows:
(1) the 1 st time, with the interval period of sending the message as T and the length of the message sent as L, L + k and L +2k … L + (N-1) k in sequence, continuously sending the message for N times;
(2) the 2 nd time, with the interval period of the message sending as T-T and the length of the message sending as L, L + k and L +2k … L + (N-1) k in sequence, continuously sending the message for N times;
…
(m) repeating the steps, wherein the interval period of the message sending at the mth time is T- (m-1) T, the length of the message sending at the mth time is L, L + k, L +2k … L + (N-1) k, and the message is continuously sent for N times;
wherein, T is an interval period of sending messages, L is a length of sending messages, k is a message length constant, N is a number of times of sending messages, and T is an interval period constant of sending messages.
3. The 5G-based train network communication test system according to 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 according to claim 3, wherein:
the condition parameter for stopping sending the test message comprises 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:
and the statistical analysis of the messages comprises the total number of the messages sent by the vehicle-mounted logic processing module, the total number of the 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 testing time length.
6. The 5G-based train network communication test system according to 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 according to claim 3, wherein: the test mode limit test or the stability test.
8. The 5G-based train network communication test system according to claim 5, wherein:
the vehicle-mounted testing and displaying unit also 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 a message sending stop signal;
the ground testing and displaying unit also comprises a ground alarming module;
and 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 sending the test message.
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