A dedicated detection platform and method for wireless reconnection broadband data transmission equipment

Abstract

The present invention discloses a special detection platform and method for wireless reconnected broadband data transmission equipment. The method adopts a combination of automated detection and manual detection. The test items can be customized and configured, and unqualified items can be tested individually in manual mode. The use of the special detection platform for wireless reconnected broadband data transmission equipment can reduce the labor intensity of detection personnel, improve detection efficiency and accuracy, play an important role in ensuring excellent equipment performance and safe and reliable operation, is beneficial to on-site safety production, and ensures the safe and stable operation of heavy-load combination trains.

Description

Technical Field

[0001] The present invention relates to the technical field of railway wireless communication, and in particular to a special detection platform and method for wireless reconnection broadband data transmission equipment. Background Art

[0002] Heavy-haul railways use a locomotive wireless reconnection synchronization control system to operate 10,000-ton and 20,000-ton combination trains. Wireless data transmission is used to provide a data transmission channel for the main control locomotive at the head of the combination train and the slave control locomotive in the middle, thereby achieving synchronous traction and braking of the combination train.

[0003] Wireless reconnected broadband data transmission equipment has become the basic equipment for heavy-load railway transportation and plays an important role in the safety of heavy-load combination trains. Ensuring the excellent performance and safe and reliable operation of the equipment has become an important part of daily maintenance work. However, the development of dedicated maintenance and testing tools for wireless reconnected broadband data transmission equipment has been relatively lagging for a long time. There is a lack of convenient, efficient and comprehensive comprehensive maintenance and testing tools. On-site maintenance personnel only determine the operating status of the equipment through simple functional tests, which is not conducive to on-site safe production. Summary of the Invention

[0004] The purpose of the present invention is to provide a special detection platform and method for wireless reconnected broadband data transmission equipment, which can perform comprehensive and automated detection of the performance and functions of the entire wireless reconnected broadband data transmission equipment and single boards, reduce the labor intensity of detection personnel, and improve detection efficiency and accuracy.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A dedicated testing platform for wireless reconnected broadband data transmission equipment includes: a single-board test unit, a whole-machine test unit, a radio communication tester, and an industrial computer; wherein:

[0007] The single-board test unit is used to perform comprehensive automated testing of the functions and performance of the power supply unit, control unit, communication unit and interface unit of the device under test in combination with a radio communication tester under the control of an industrial computer;

[0008] The whole machine test unit is used to perform whole machine automated testing on the device under test in combination with the single board test unit under the control of the industrial computer to determine whether the device under test is performing its working process normally;

[0009] The industrial computer is used to control the single-board test unit and the whole-machine test unit to complete automated single-board testing and whole-machine testing, save the test results, and feedback the corresponding test results based on the received query request; it is also used to perform separate tests on unqualified test items based on the received control commands and test parameters after the automated test is completed.

[0010] A dedicated detection method for wireless reconnected broadband data transmission equipment, implemented on the aforementioned platform, comprising:

[0011] The single-board test unit and the whole-machine test unit are controlled by the industrial computer to complete the automated single-board test and whole-machine test, save the test results, and feedback the corresponding test results according to the received query request. It is also used to perform individual tests on unqualified test items according to the received control commands and test parameters after the completion of the automated test.

[0012] Among them, the single-board test unit, under the control of the industrial computer, combines with the radio communication tester to perform comprehensive automated testing on the functions and performance of the power unit, control unit, communication unit and interface unit of the device under test; the whole-machine test unit, under the control of the industrial computer, combines with the single-board test unit to perform whole-machine automated testing on the device under test to determine whether the working process of the device under test is normal.

[0013] It can be seen from the technical solution provided by the present invention that by adopting a method combining automated detection and manual detection, the test items can be customized, and unqualified items can be tested individually in manual mode. The use of a dedicated detection platform for wireless reconnected broadband data transmission equipment can reduce the labor intensity of detection personnel, improve detection efficiency and accuracy, and play an important role in ensuring excellent equipment performance and safe and reliable operation. It is beneficial to on-site safety production and ensures the safe and smooth operation of heavy-load combination trains. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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 paying any creative work.

[0015] Figure 1 A block diagram of a dedicated detection platform for wireless reconnection broadband data transmission equipment provided by an embodiment of the present invention;

[0016] Figure 2 Functional block diagram of a single board test unit provided in an embodiment of the present invention;

[0017] Figure 3 Functional block diagram of a test control unit provided by an embodiment of the present invention;

[0018] Figure 4 This is a functional block diagram of the whole machine test unit provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] First, the following terms may be used in this article:

[0021] The term “and / or” means that either or both of them can be realized at the same time. For example, X and / or Y includes both “X” or “Y” and “X and Y”.

[0022] The terms "include," "comprises," "contains," "has," or other similar expressions should be interpreted as non-exclusive. For example, "including certain technical features (such as raw materials, components, ingredients, carriers, dosage forms, materials, dimensions, parts, components, mechanisms, devices, steps, procedures, methods, reaction conditions, processing conditions, parameters, algorithms, signals, data, products, or manufactured articles, etc.) should be interpreted as including not only the technical features explicitly listed, but also other technical features known in the art that are not explicitly listed.

[0023] The following describes in detail a dedicated detection solution for wireless reconnected broadband data transmission equipment provided by the present invention. Any information not described in detail in the embodiments of the present invention is prior art known to those skilled in the art. Where specific conditions are not specified in the embodiments of the present invention, the test shall be conducted in accordance with conventional conditions in the art or the conditions recommended by the manufacturer. Instruments used in the embodiments of the present invention, where the manufacturer is not specified, are all commercially available conventional products.

[0024] Example 1

[0025] like Figure 1 As shown, a dedicated testing platform for wireless reconnected broadband data transmission equipment mainly includes: a single-board test unit, a whole-machine test unit, a radio communication tester, and an industrial computer; wherein:

[0026] The single-board test unit is used to perform comprehensive automated testing of the functions and performance of the power supply unit, control unit, communication unit and interface unit of the device under test in combination with a radio communication tester under the control of an industrial computer;

[0027] The whole machine test unit is used to perform whole machine automated testing on the device under test in combination with the single board test unit under the control of the industrial computer to determine whether the device under test is performing its working process normally;

[0028] The industrial computer is used to control the single-board test unit and the whole-machine test unit to complete automated single-board testing and whole-machine testing, save the test results, and feedback the corresponding test results based on the received query request; it is also used to perform separate tests on unqualified test items based on the received control commands and test parameters after the automated test is completed.

[0029] The platform also includes: a switch, which realizes communication between the single board test unit and the industrial computer through Ethernet.

[0030] The platform also includes: a power supply unit and a UPS unit. The power supply unit is used to supply power to various parts of the platform, and the UPS unit is used to provide emergency power to various parts of the platform.

[0031] For example, the dedicated testing platform for wireless reconnected broadband data transmission equipment (DTE-L equipment) can adopt a 19-inch standard rack design, and the single-board test unit, whole-machine test unit, switch unit, radio communication tester (for example, CMW500 broadband radio communication tester), industrial computer, power supply unit, and UPS unit all use independent plug-in boxes, which are more convenient for assembly, disassembly, transportation and maintenance.

[0032] In the embodiment of the present invention, a plurality of reserved areas are provided inside the single-board test unit and the whole-machine test unit, so that corresponding unit boards for testing can be added. In addition, Figure 1 The positions of the various parts of the platform shown are only examples and do not constitute a limitation. The specific settings of each part can be adjusted by the user according to actual conditions or experience, as long as it is ensured that the platform after adjustment can still implement the aforementioned test plan.

[0033] The dedicated testing platform for wireless reconnected broadband data transmission equipment provided by the embodiment of the present invention sets the testing methods and testing items according to the relevant standards of the broadband mobile communication system, and comprehensively tests the performance and functions of the entire machine and single board of the wireless reconnected broadband data transmission equipment. The platform adopts a method that combines automated testing and manual testing. The test items can be customized, and unqualified items can be tested individually in manual mode.

[0034] To facilitate understanding, the following is a detailed introduction to the various functions of the above platform and how to implement related functions.

[0035] 1. Single board test

[0036] In this embodiment of the present invention, the single-board test is performed to test the hardware functions and performance of the power supply unit, control unit, communication unit, and interface unit of a wireless reconnected broadband data transmission device (hereinafter referred to as the device under test) to determine whether the functions and performance of each unit meet the required indicators. The broadband mobile communication module (the core component of the communication unit) automatically detects the electrical performance and network functions of the module, including module transmission performance indicators, module reception performance indicators, and module network registration, attachment, service activation, switching, and other network functions.

[0037] like Figure 1 and Figure 2 As shown, the single board test unit includes: a test control unit, and test slots for a power supply unit, a control unit, a communication unit, and an interface unit. During single board testing, each test slot is inserted with a corresponding unit card of the device under test.

[0038] In an embodiment of the present invention, an industrial computer sends a test command to a test control unit via the M12 Ethernet interface of the test control unit. The test control unit is connected to the control unit and interface unit of the device under test via a serial port, and to the power supply unit of the device under test via an ADC interface. Based on the test command from the industrial computer, a comprehensive automated test is performed on the functions and performance of the control unit, interface unit, and power supply unit of the device under test. The antenna interface of the communication unit of the device under test is connected to the RF input interface of the radio communication tester. The test control unit is internally installed with a driver for the communication unit of the device under test. Based on the test command from the industrial computer and in conjunction with the radio communication tester, a comprehensive automated test is performed on the functions and performance of the communication unit of the device under test.

[0039] like Figure 3 As shown, the test control unit includes: a single-chip microcomputer (PIC32) and a core board (COM9260), and the core board is connected to the single-chip microcomputer through a serial port; the serial port of the core board is connected to the control unit of the device under test, and the Ethernet interface receives the test command from the industrial computer; the serial port of the single-chip microcomputer is connected to the interface unit of the device under test, and the ADC interface is connected to the power supply unit of the device under test.

[0040] In an embodiment of the present invention, the single-chip microcomputer and the core board of the test control unit each have 5 serial ports, and the core board is separately connected to the CIR serial port and the OCE serial port of the control unit of the device under test through two serial ports; the single-chip microcomputer is separately connected to a single serial port of the interface unit of the device under test through four serial ports.

[0041] Based on the above structure, the test principle of each unit board in the device under test can be described as:

[0042] The industrial computer sends test commands to the control unit through the control unit's M12 Ethernet interface, and the control unit forwards the relevant test commands to various ports. The OCE serial port and CIR serial port used to test the control board, the OCE serial port used to connect to the external device under test during whole-machine testing, and the OCE serial port of the whole-machine test unit use serial ports 1, 2, 3, and 4 on the core board COM9260. Serial port 5 on the core board communicates with serial port 1 on the microcontroller. Extended serial ports 2, 3, 4, and 5 on the microcontroller are used for testing the interface unit.

[0043] 1. The single board test unit is also equipped with a communication unit similar to the wireless reconnection broadband data transmission equipment ( Figure 1 The second box from the top right) is used in conjunction with the test of the control unit test slot on the right.

[0044] 2. The control unit test slot is used to insert the control unit board of the device under test. Because serial ports 2 and 3 of the control unit are currently reserved interfaces and are not controlled in the program, the testable interfaces include the serial port for communication with the OCE, the serial port for communication with the CIR, the USB interface for controlling the EM350 module (the broadband mobile communication module mentioned above), and the M12 Ethernet interface on the front panel.

[0045] 2. The power supply unit test slot is used to insert the power supply unit card under test. The internal motherboard introduces the 5V output of the card into the ADC detection pin of the control unit to measure the output voltage of the power supply unit under test.

[0046] 3. The interface unit test slot is used to insert the interface unit card under test. The four external RS422 serial ports use dedicated short-circuit terminals to short-circuit TX+ and RX+, and TX- and RX- within each serial port. This allows the control unit to determine whether serial ports 1-4 are functioning properly by comparing the received data with the transmitted data.

[0047] 4. The communication unit test slot is used to insert the communication unit under test (UUT) board. The communication unit contains a dedicated 1.8 GHz LTE module, the EM350 (EM360). The UUT's antenna interface, ANT-1, is connected to the RF input of the CMW500 broadband radio communication tester via a short feeder cable. After the control unit has the correct driver installed, the USB port in the EM350 module's MiniPCIe interface is mapped to an AT command serial port and a data network port. The control unit software transparently forwards data between the external M12 network port and the internal module's AT command serial port. This allows the industrial computer to directly control the EM350 module through the network port using AT commands to perform various network access operations.

[0048] In addition, the single board test unit is provided with an extension unit connected to the test control unit. The extension unit includes two serial ports, one connected to the serial port of the device under test and the other connected to the serial port of the whole machine test unit.

[0049] 2. Whole machine test.

[0050] The whole device test mainly tests the key processes of wireless reconnection broadband data transmission equipment, including network login, addressing, data forwarding, equipment self-healing, log recording, etc. Figure 4 The figure shows the functional block diagram of the whole device test unit, which includes an interface unit, a communication unit, and a control unit. It simulates a device identical to the device under test to send data to test the whole device function. The main principles are as follows:

[0051] The industrial computer sends test data to the test control unit of the single-board test unit. The test control unit forwards the test data to the OCE serial port of the interface board of the device under test and the OCE serial port of the whole-machine test unit through the expansion unit.

[0052] The industrial computer simulates the OCE and sends locomotive number information to the DTE-L device under test (DTE-L device under test) to control the device under test to log on to the network. The industrial computer also sends locomotive number information to the complete test unit to control its network access. The device under test and the complete test unit are each equipped with a SIM card to simulate devices on different locomotives. After successful marshaling, the device under test and the complete test unit exchange service data to test the network access and data transmission functions of the OCE serial port and communication unit of the device under test.

[0053] After receiving the data, the whole machine test unit forwards it to the industrial computer through the OCE serial port. The industrial computer forwards the received data to the device under test. The device under test determines whether the received data is consistent with the data it has sent out, and feeds back the comparison result to the industrial computer. The industrial computer determines whether the data communication is normal based on the comparison result.

[0054] 3. Automatic Testing and Manual Testing

[0055] The dedicated testing platform supports a combination of automated and manual testing. Test items can be customized, and any items that fail automated single-board or full-device testing can be individually tested manually. The dedicated testing platform controls the CMW500 broadband radio communication tester via industrial computer software, enabling automated testing of the electrical performance and network functionality of broadband mobile communication modules. Functionality and performance testing of the control unit, interface unit, and power supply unit requires specialized test fixtures (the single-board test unit described above).

[0056] 4. Archiving and query of test results.

[0057] The dedicated testing platform automatically assigns a corresponding device type to each device under test. Each device's device identification number must be manually entered before testing begins. The platform binds the device under test to its corresponding device identification number and categorizes and stores test results by device type. User query requests, including the device identification number and / or device type, allow users to retrieve test records and data for a specific device or device type.

[0058] All test indicators are stored in a database according to relevant standards. Users can query the stored results through the software and export relevant test results to reports. Test data can be analyzed to identify fault points. Users can also print test data for maintenance personnel to sign and retain.

[0059] It should be noted that the specific information such as the specific models of hardware, serial numbers of various ports, IP addresses, etc. provided in the embodiments of the present invention are only examples and do not constitute a limitation.

[0060] The embodiment of the present invention provides a dedicated detection method for wireless reconnected broadband data transmission equipment, which mainly achieves the following beneficial effects:

[0061] The dedicated testing platform for wireless reconnected broadband data transmission equipment uses testing methods and test items based on relevant standards for broadband mobile communication systems to comprehensively test the performance and functionality of the entire wireless reconnected broadband data transmission equipment and its individual boards. The platform utilizes a combination of automated and manual testing methods, with customizable test items and individual, manual testing for unqualified items. The use of this dedicated testing platform for wireless reconnected broadband data transmission equipment reduces the workload of testing personnel and improves testing efficiency and accuracy. This platform plays a vital role in ensuring excellent equipment performance and safe and reliable operation, contributing to on-site safety production and ensuring the safe and stable operation of heavy-load combined trains.

[0062] Example 2

[0063] Another embodiment of the present invention also provides a special detection method for wireless reconnected broadband data transmission equipment. The method is implemented based on the platform provided by the aforementioned embodiment 1, and mainly includes: controlling the single-board test unit and the whole-machine test unit through an industrial computer to complete automated single-board testing and whole-machine testing, and saving the test results, and feeding back the corresponding test results according to the received query request; it is also used to perform separate tests on unqualified test items according to the received control commands and test parameters after the automated test is completed; wherein, the single-board test unit is under the control of the industrial computer, combined with the radio communication tester to perform comprehensive automated testing on the functions and performance of the power supply unit, control unit, communication unit and interface unit of the device under test; the whole-machine test unit is under the control of the industrial computer, combined with the single-board test unit to perform automated testing on the device under test to determine whether the working process of the device under test is normal.

[0064] It should be noted that the specific implementation of each testing link involved in the above method has been described in detail in the previous embodiment 1, so it will not be repeated here.

[0065] Those skilled in the art will clearly understand that for the convenience and brevity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the system can be divided into different functional modules to complete all or part of the functions described above.

[0066] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A dedicated detection platform for wireless reconnection broadband data transmission equipment, characterized in that: include: Single board test unit, complete machine test unit, radio communication tester and industrial computer; among which: The single-board test unit is used to perform comprehensive automated testing on the functions and performance of the power supply unit, control unit, communication unit, and interface unit of the device under test in combination with a radio communication tester under the control of an industrial computer. The single-board test unit includes: a test control unit, an expansion unit connected to the test control unit, and test slots for the power supply unit, control unit, communication unit, and interface unit. During single-board testing, each test slot is inserted with a corresponding unit card of the device under test. The test control unit is connected to the control unit and interface unit of the device under test via a serial port and to the power supply unit of the device under test via an ADC interface. Comprehensive automated testing of the functions and performance of the control unit, interface unit, and power supply unit of the device under test is performed according to test commands from the industrial computer. The whole machine test unit is used to perform whole machine automated test on the device under test in combination with the single board test unit under the control of the industrial computer, and judge whether the working process of the device under test is normal, including: the industrial computer sends test data to the test control unit of the single board test unit, and the test control unit forwards the test data to the OCE serial port of the interface board of the device under test and the OCE serial port of the whole machine test unit through the expansion unit; the industrial computer simulates OCE to send locomotive number information to the device under test to control the device under test to log on to the network; the industrial computer also sends locomotive number information to the whole machine test unit to control its login Network; a SIM card is installed in each of the device under test and the whole machine test unit to simulate the equipment of different locomotives. After successful marshaling, the device under test and the whole machine test unit exchange business data to test the network access and data transmission functions of the OCE serial port and communication unit of the device under test; after receiving the data, the whole machine test unit forwards it to the industrial computer through the OCE serial port, and the industrial computer forwards the received data to the device under test. The device under test determines whether the received data is consistent with the data it has sent out, and feeds back the comparison result to the industrial computer. The industrial computer determines whether the data communication is normal based on the comparison result; The industrial computer is used to control the single-board test unit and the whole-machine test unit to complete automated single-board testing and whole-machine testing, save the test results, and feedback the corresponding test results based on the received query request; it is also used to perform separate tests on unqualified test items based on the received control commands and test parameters after the automated test is completed.

2. A dedicated detection platform for wireless reconnection broadband data transmission equipment according to claim 1, characterized in that: The antenna interface of the communication unit of the device under test is connected to the radio frequency input interface of the radio communication tester. The driver of the communication unit of the device under test is installed inside the test control unit. According to the test commands of the industrial computer and in combination with the radio communication tester, a comprehensive automated test is performed on the function and performance of the communication unit of the device under test.

3. A dedicated detection platform for wireless reconnection broadband data transmission equipment according to claim 2, characterized in that: The test control unit includes: a single-chip microcomputer and a core board, and the core board and the single-chip microcomputer are connected through a serial port; the serial port of the core board is connected to the control unit of the device under test, and the Ethernet interface receives the test command from the industrial computer; the serial port of the single-chip microcomputer is connected to the interface unit of the device under test, and the ADC interface is connected to the power supply unit of the device under test.

4. A dedicated detection platform for wireless reconnection broadband data transmission equipment according to claim 3, characterized in that: The single-chip microcomputer and core board of the test control unit each have 5 serial ports, and the core board is separately connected to the CIR serial port and OCE serial port of the control unit of the device under test through two serial ports; the single-chip microcomputer is separately connected to a single serial port of the interface unit of the device under test through four serial ports.

5. A dedicated detection platform for wireless reconnection broadband data transmission equipment according to claim 2, 3 or 4, characterized in that: The expansion unit includes two serial ports, one of which is connected to the serial port of the device under test, and the other is connected to the serial port of the whole machine test unit.

6. A dedicated detection platform for wireless reconnection broadband data transmission equipment according to claim 1, characterized in that: The platform binds the device under test with the corresponding device identification number, and categorizes and stores the test results according to the different device types of the device under test. The query request includes the device identification number and / or device type.

7. A dedicated detection platform for wireless reconnection broadband data transmission equipment according to claim 1, characterized in that: The platform also includes: a switch, which realizes communication between the single board test unit and the industrial computer through Ethernet.

8. A dedicated detection platform for wireless reconnection broadband data transmission equipment according to claim 1, characterized in that: The platform also includes: a power supply unit and a UPS unit. The power supply unit is used to supply power to various parts of the platform, and the UPS unit is used to provide emergency power to various parts of the platform.

9. A dedicated detection method for wireless reconnection broadband data transmission equipment, characterized in that: The method is implemented based on a dedicated detection platform for wireless reconnection broadband data transmission equipment according to any one of claims 1 to 8, comprising: The single-board test unit and the whole-machine test unit are controlled by the industrial computer to complete the automated single-board test and whole-machine test, save the test results, and feedback the corresponding test results according to the received query request. It is also used to perform individual tests on unqualified test items according to the received control commands and test parameters after the completion of the automated test. Among them, the single-board test unit, under the control of the industrial computer, combines with the radio communication tester to perform comprehensive automated testing on the functions and performance of the power unit, control unit, communication unit and interface unit of the device under test; the whole-machine test unit, under the control of the industrial computer, combines with the single-board test unit to perform whole-machine automated testing on the device under test to determine whether the working process of the device under test is normal.

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