A transponder test system and test method and test host computer
By designing the transponder test system, using the test computer and signal analysis unit to calculate indicators such as energy amplitude, center frequency frequency deviation and maximum time interval error, the test problems of the transponder in a long-term activation scenario are solved, and comprehensive monitoring and evaluation of the transponder performance is achieved.
Patent Information
- Application Number
- CN202311295344.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-08
- Publication Date
- 2025-04-08
AI Technical Summary
The prior art is difficult to effectively test the performance of transponders in scenarios where trains are slept/wake up for a long time to activate continuous operation.
It provides a test system for transponders, including a test computer, a signal generation unit, a transmission unit, a reception unit and a signal analysis unit. By generating and sending test signals, receiving and analyzing the feedback signal of the transponder, and calculating key indicators such as energy amplitude, center frequency deviation and maximum time interval error.
It realizes coverage of long-term tests of transponders, monitors the working energy, frequency stability and data stability of transponders, and improves the testing efficiency and effect.
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Figure CN119788125A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of transponder testing, and more specifically, to a transponder testing system and a testing method thereof and a testing host computer. Background Art
[0002] The transponder is a ground positioning device widely used in rail transit. It transmits data to the train through electromagnetic induction when the train passes. Depending on the speed of the train, the working time is usually from tens of milliseconds to several seconds. Therefore, the current product testing focuses on the response speed and signal quality of the transponder during rapid startup.
[0003] However, with the development of unmanned autonomous driving in the field of rail transit in recent years, a new scenario has emerged in which the transponder works when the train is asleep / awakened. In this scenario, the transponder needs to be activated for a long time and work continuously for 1 to 2 hours. For this new scenario, the industry urgently needs a new test system and method to complete the test coverage of the above scenario. Summary of the invention
[0004] In view of this, the present invention provides a transponder testing system and a testing method thereof and a testing host computer, which effectively solve the technical problems existing in the prior art, meet the demand for long-term testing of transponders, and fill the gap in transponder testing in more application scenarios.
[0005] To achieve the above purpose, the technical solution provided by the present invention is as follows:
[0006] A transponder testing system, comprising:
[0007] A test host computer, the test host computer is used to generate an opening signal according to a test requirement for the transponder, wherein the test requirement includes at least one of a continuous test duration, a number of test cycles, and a test item, and the continuous test duration is 10s-3h;
[0008] a signal generating unit, wherein the signal generating unit generates a test signal based on the start signal;
[0009] a transmitting unit, the transmitting unit being configured to transmit the test signal to the transponder, the transponder generating a test feedback signal based on the test signal;
[0010] A receiving unit, the receiving unit is used to receive the test feedback signal;
[0011] A signal analysis unit, wherein the signal analysis unit is used to analyze the test feedback signal in the time domain and the frequency domain to obtain signal data; the test host computer is used to perform parallel calculations on the energy amplitude, center frequency deviation and maximum time interval error of the signal data to generate test data, and perform data processing on the test data, wherein the data processing includes at least one of storage, display and printing.
[0012] Optionally, the test host computer includes:
[0013] A test host, wherein the test host generates a data processing signal based on the test data, wherein the data processing signal includes at least one of a storage signal, a display signal, and a print signal;
[0014] At least one of a memory, a display, and a printer electrically connected to the test host, the memory storing the test data based on the storage signal, the display displaying the test data based on the display signal, and the printer printing the test data based on the print signal;
[0015] Furthermore, at least one of the memory, the display and the printer is also integrated into the test host.
[0016] Optionally, the signal generating unit includes:
[0017] a signal generator, the signal generator generating a test signal based on the start signal;
[0018] A radio frequency power amplifier electrically connected to the signal generator, the radio frequency power amplifier being used to amplify the power of the test signal and then output it to the transmitting unit;
[0019] Furthermore, a first attenuator is electrically connected between the signal generator and the radio frequency power amplifier.
[0020] Optionally, the transmitting unit includes a transmitting antenna, and the transmitting antenna is used to send the test signal to the transponder;
[0021] The receiving unit comprises a receiving antenna, and the receiving antenna is used to receive the test feedback signal;
[0022] Furthermore, the transmitting unit further includes a second attenuator electrically connected between the transmitting antenna and the signal generating unit.
[0023] Optionally, the signal analysis unit includes a signal analyzer, and the signal analyzer is used to analyze the test feedback signal in the time domain and the frequency domain to obtain signal data;
[0024] The signal analysis unit further includes a third attenuator and a filter electrically connected between the receiving unit and the signal analyzer, wherein the third attenuator is electrically connected to one side of the receiving unit, and the filter is electrically connected to one side of the signal analyzer.
[0025] Optionally, the test host computer is connected to the signal generating unit and the signal analyzing unit via a GPIB bus.
[0026] Accordingly, the present invention also provides a transponder testing method, comprising:
[0027] Generate an opening signal according to a test requirement for the transponder, wherein the test requirement includes at least one of a continuous test duration, a number of test cycles, and a test item, and the continuous test duration is 10s-3h;
[0028] generating a test signal based on the start signal;
[0029] sending the test signal to the transponder, the transponder generating a test feedback signal based on the test signal;
[0030] receiving the test feedback signal;
[0031] Performing time domain and frequency domain analysis on the test feedback signal to obtain signal data;
[0032] Performing parallel calculations on the energy amplitude, center frequency deviation and maximum time interval error of the signal data to generate test data;
[0033] The test data is processed, wherein the data processing includes at least one of storage, display and printing.
[0034] Optionally, before generating an opening signal according to a test requirement for the transponder, the testing method further includes:
[0035] Generate a self-test signal according to the test requirements of the transponder, so that the test-related instrument performs a self-test based on the self-test signal;
[0036] sending calibration energy to the transponder, the transponder generating calibration feedback energy based on the calibration energy;
[0037] Determine whether the calibration feedback energy meets expectations, and if so, generate an enable signal according to the test requirements of the transponder; if not, adjust the calibration energy until the calibration feedback energy meets expectations, and then generate an enable signal according to the test requirements of the transponder.
[0038] Optionally, after calculating and generating the test data and before performing data processing on the test data, the method further includes:
[0039] Determine whether the continuous test duration meets the target requirement. If yes, perform data processing on the test data; if not, continue to perform parallel calculations on the energy amplitude, center frequency deviation and maximum time interval error of the signal data to generate test data until the continuous test duration meets the target requirement.
[0040] Accordingly, the present invention further provides a test host computer, which is applied to a test system of a transponder, wherein the test system comprises a signal generating unit, a transmitting unit, a receiving unit and a signal analyzing unit, wherein the test host computer comprises:
[0041] A main control module, the main control module is used to generate an opening signal according to a test requirement for the transponder, wherein the test requirement includes at least one of a continuous test duration, a number of test cycles, and a test item, and the continuous test duration is 10s-3h;
[0042] A transmitting module, the transmitting module is used to send the start signal to the instrument communication module;
[0043] The instrument communication module adjusts the start signal according to the set communication protocol instruction and outputs it to the instrument drive module;
[0044] The instrument driving module is used to send the adjusted start signal to the signal generating unit, wherein the signal generating unit generates a test signal based on the start signal; the transmitting unit is used to send the test signal to the transponder, and the transponder generates a test feedback signal based on the test signal; the receiving unit is used to receive the test feedback signal; the signal analyzing unit is used to analyze the test feedback signal in the time domain and the frequency domain to obtain signal data; the instrument driving module is used to receive the signal data and transmit it to the instrument communication module; the instrument communication module adjusts the signal data according to the set communication protocol instruction and transmits it to the receiving module;
[0045] The receiving module is used to send the adjusted signal data to the data preprocessing module;
[0046] The data preprocessing module is used to preprocess the signal data and then send it to the energy amplitude calculation module, the center frequency deviation calculation module and the maximum time interval error calculation module;
[0047] The energy amplitude calculation module, the center frequency deviation calculation module and the maximum time interval error calculation module perform parallel calculations of the energy amplitude, center frequency deviation and maximum time interval error on the signal data based on the control of the parallel computing driving module, generate test data and transmit it to the main control module; the main control module generates a data processing signal according to the test data, wherein the data processing signal includes at least one of a storage signal, a display signal and a print signal.
[0048] Compared with the prior art, the technical solution provided by the present invention has at least the following advantages:
[0049] The present invention provides a transponder test system and a test method and a test host computer, and selects three key indicators, namely energy amplitude, center frequency deviation and maximum time interval error, as test evaluation indicators. The energy amplitude is used to monitor whether the output energy of the transponder decreases when it works for a long time; the center frequency deviation is used to monitor whether the oscillation frequency of the transponder drifts when it works for a long time; and the maximum time interval error is used to monitor whether the data transmission rate of the transponder is stable when it works for a long time. The above three indicators monitor the long-term working status of the transponder from three aspects: transponder working energy, frequency stability and data stability, respectively, covering the basic working functions of the transponder. This monitoring indicator selection scheme achieves the maximum evaluation effect with the least amount of indicator calculation.
[0050] The calculation of energy amplitude, center frequency deviation and maximum time interval error provided by the present invention uses parallel computing to generate test data, which greatly improves the efficiency of data processing and meets the basic conditions for long-term testing of transponders. The technical solution provided by the present invention meets the needs of long-term testing of transponders and fills the gap in testing transponders in more application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0052] Figure 1 A schematic diagram of the structure of a transponder testing system provided by an embodiment of the present invention;
[0053] Figure 2 A schematic diagram of the structure of another transponder testing system provided by an embodiment of the present invention;
[0054] Figure 3A flow chart of a transponder testing method provided by an embodiment of the present invention;
[0055] Figure 4 A flow chart of another transponder testing method provided by an embodiment of the present invention;
[0056] Figure 5 A flowchart of another transponder testing method provided by an embodiment of the present invention;
[0057] Figure 6 A schematic diagram of the structure of a test host computer provided by an embodiment of the present invention. DETAILED DESCRIPTION
[0058] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0059] As described in the background technology, however, with the development of unmanned autonomous driving in the field of rail transit in recent years, a new scenario has emerged in which the transponder works when the train is asleep / awakened. In this scenario, the transponder needs to be activated for a long time and work continuously for 1 to 2 hours. For this new scenario, the industry urgently needs a new test system and method to complete the test coverage of the above scenario.
[0060] Based on this, an embodiment of the present invention provides a transponder testing system and a testing method thereof and a testing host computer, which effectively solve the technical problems existing in the prior art, meet the demand for long-term testing of transponders, and fill the gap in transponder testing in more application scenarios.
[0061] To achieve the above purpose, the technical solution provided by the embodiment of the present invention is as follows, specifically in conjunction with FIG. Figure 6 The technical solution provided by the embodiment of the present invention is described in more detail.
[0062] refer to Figure 1 FIG. 1 is a schematic diagram of a structure of a transponder test system provided by an embodiment of the present invention, wherein the test system provided by the embodiment of the present invention includes:
[0063] A test host computer 100, wherein the test host computer 100 is used to generate an open signal according to the test requirements for the transponder, wherein the test requirements include at least one of a continuous test duration, a number of test cycles and a test item, and the continuous test duration is 10s-3h.
[0064] The signal generating unit 200 generates a test signal based on the start signal.
[0065] The transmitting unit 300 is used to send the test signal to the transponder, and the transponder generates a test feedback signal based on the test signal.
[0066] The receiving unit 400 is configured to receive the test feedback signal.
[0067] The signal analysis unit 500 is used to perform time domain and frequency domain analysis on the test feedback signal to obtain signal data; the test host computer 100 is used to perform parallel calculations on the energy amplitude, center frequency deviation and maximum time interval error of the signal data to generate test data, and to perform data processing on the test data, wherein the data processing includes at least one of storage, display and printing.
[0068] It can be understood that the technical solution provided by the embodiment of the present invention selects three key indicators, namely energy amplitude, center frequency deviation and maximum time interval error, as test evaluation indicators. The energy amplitude is used to monitor whether the output energy of the transponder decreases when it works for a long time; the center frequency deviation is used to monitor whether the oscillation frequency of the transponder drifts when it works for a long time; and the maximum time interval error is used to monitor the interval error between the data bits of the transponder uplink signal, that is, to monitor whether the data transmission rate of the transponder is stable when it works for a long time. The above three indicators monitor the long-term working status of the transponder from three aspects: transponder working energy, frequency stability and data stability, respectively, covering the basic working functions of the transponder. This monitoring indicator selection scheme achieves the maximum evaluation effect with the least amount of indicator calculation.
[0069] The calculation of energy amplitude, center frequency deviation and maximum time interval error provided by the embodiment of the present invention adopts parallel computing to generate test data, which greatly improves the efficiency of data processing and meets the basic conditions for long-term testing of transponders. The technical solution provided by the embodiment of the present invention meets the demand for long-term testing of transponders and fills the gap in testing transponders in more application scenarios.
[0070] A more specific test system provided by an embodiment of the present invention is described below in conjunction with the accompanying drawings. Figure 2 FIG. 1 is a schematic diagram of the structure of another transponder test system provided by an embodiment of the present invention, wherein the test host computer 100 provided by the embodiment of the present invention includes:
[0071] A test host 110, wherein the test host 110 generates a data processing signal based on the test data, wherein the data processing signal includes at least one of a storage signal, a display signal, and a print signal.
[0072] At least one of the memory 120, the display 130 and the printer 140 electrically connected to the test host 110, the memory 120 stores the test data based on the storage signal, the display 130 displays the test data based on the display signal, and the printer 140 prints the test data based on the print signal.
[0073] In one embodiment of the present invention, at least one of the memory 120, the display 130 and the printer 140 provided in the embodiment of the present invention is also integrated in the test host 110. It should be noted that in other embodiments of the present invention, the memory, display and printer provided in the embodiment of the present invention may also be individual structures independent of the test host, and the embodiment of the present invention does not make any specific limitation on this.
[0074] The signal generating unit 200 provided in the embodiment of the present invention includes: a signal generator 210, the signal generator 210 generates a test signal based on the start signal; a radio frequency power amplifier 220 electrically connected to the signal generator 210, the radio frequency power amplifier 220 is used to amplify the power of the test signal and then output it to the transmitting unit 300. In addition, a first attenuator 240 is also electrically connected between the signal generator 210 and the radio frequency power amplifier 220.
[0075] It can be understood that the signal generator provided in the embodiment of the present invention receives the start signal generated by the test host computer, and generates a test signal based on the test information carried by the start signal, and then the signal generator sends the test signal to the RF power amplifier for power amplification. The technical solution provided in the embodiment of the present invention has a first attenuator connected between the signal generator and the video power amplifier, which can adjust the signal matching between the devices, thereby achieving the purpose of protecting the devices.
[0076] The transmitting unit 300 provided in an embodiment of the present invention includes a transmitting antenna 310, and the transmitting antenna 310 is used to send the test signal to the transponder; the receiving unit 400 includes a receiving antenna 410, and the receiving antenna 410 is used to receive the test feedback signal; and the transmitting unit 300 also includes a second attenuator 320 electrically connected between the transmitting antenna 310 and the signal generating unit 200.
[0077] It can be understood that after the transmitting antenna provided by the embodiment of the present invention receives the test signal output by the signal generating unit, the transmitting antenna can convert the test signal into an electromagnetic wave signal and transmit it to the transponder, and then the transponder performs a test according to the test information carried by the test signal and generates a test feedback signal. Then, the receiving antenna receives the test feedback signal. If the test feedback signal is an electromagnetic wave signal, the receiving antenna can convert the electromagnetic wave signal into an electrical signal and output the test feedback signal. The technical solution provided by the embodiment of the present invention sets a second attenuator between the transmitting antenna and the signal generating unit, so as to protect the devices connected thereto.
[0078] The signal analysis unit 500 provided in an embodiment of the present invention includes a signal analyzer 410, and the signal analyzer 510 is used to perform time domain and frequency domain analysis on the test feedback signal to obtain signal data; the signal analysis unit 500 also includes a third attenuator 520 and a filter 530 electrically connected between the receiving unit 400 and the signal analyzer 510, the third attenuator 520 is electrically connected to one side of the receiving unit 400, and the filter 530 is electrically connected to one side of the signal analyzer 510.
[0079] It can be understood that after the signal analyzer provided in the embodiment of the present invention obtains the test signal output by the receiving antenna, it analyzes the test signal in the time domain and frequency domain to obtain signal data. In order to improve the accuracy of the test signal obtained by the signal analyzer, the technical solution provided in the embodiment of the present invention is provided with a filter between the signal analyzer and the receiving antenna. The filter filters out the clutter in the test signal to ensure that the test signal transmitted to the signal analyzer is highly accurate, thereby improving the accuracy of the signal data. Furthermore, a third attenuator is provided between the receiving antenna and the filter, which can protect the devices connected thereto.
[0080] In any of the above embodiments of the present invention, the test host computer provided by the present invention is connected to the signal generating unit and the signal analyzing unit via a GPIB (General-Purpose Interface Bus) bus. This embodiment of the present invention is not specifically limited to this. In other embodiments of the present invention, they can also be connected via other buses, which needs to be specifically selected according to actual applications.
[0081] Correspondingly, an embodiment of the present invention further provides a transponder testing method, which is applied to the testing system provided by any of the above embodiments. Figure 3 FIG. 1 is a flow chart of a transponder testing method provided by an embodiment of the present invention, wherein the testing method includes:
[0082] S1. Generate an open signal according to a test requirement for the transponder, wherein the test requirement includes at least one of a continuous test duration, a number of test cycles, and a test item, and the continuous test duration is 10s-3h.
[0083] S2. Generate a test signal based on the start signal.
[0084] S3. Send the test signal to the transponder, and the transponder generates a test feedback signal based on the test signal.
[0085] S4. Receive the test feedback signal.
[0086] S5. Analyze the test feedback signal in the time domain and the frequency domain to obtain signal data.
[0087] S6. Perform parallel calculations on the energy amplitude, center frequency deviation and maximum time interval error of the signal data to generate test data.
[0088] S7. Process the test data, wherein the data processing includes at least one of storage, display and printing.
[0089] It can be understood that the technical solution provided by the embodiment of the present invention selects three key indicators, namely energy amplitude, center frequency deviation and maximum time interval error, as test evaluation indicators. The energy amplitude is used to monitor whether the output energy of the transponder decreases when it works for a long time; the center frequency deviation is used to monitor whether the oscillation frequency of the transponder drifts when it works for a long time; and the maximum time interval error is used to monitor the interval error between the data bits of the transponder uplink signal, that is, to monitor whether the data transmission rate of the transponder is stable when it works for a long time. The above three indicators monitor the long-term working status of the transponder from three aspects: transponder working energy, frequency stability and data stability, respectively, covering the basic working functions of the transponder. This monitoring indicator selection scheme achieves the maximum evaluation effect with the least amount of indicator calculation.
[0090] The calculation of energy amplitude, center frequency deviation and maximum time interval error provided by the embodiment of the present invention adopts parallel computing to generate test data, which greatly improves the efficiency of data processing and meets the basic conditions for long-term testing of transponders. The technical solution provided by the embodiment of the present invention meets the demand for long-term testing of transponders and fills the gap in testing transponders in more application scenarios.
[0091] refer to Figure 4 FIG. 1 is a flow chart of another transponder testing method provided by an embodiment of the present invention, wherein, before S1, generating an opening signal according to a test requirement for the transponder, the testing method further includes:
[0092] S01, generating a self-test signal according to the test requirements of the transponder, so that the test-related instruments perform self-test based on the self-test signal. After the self-test is qualified, enter S02, otherwise the test ends and an error is reported.
[0093] S02. Send calibration energy to the transponder, and the transponder generates calibration feedback energy based on the calibration energy.
[0094] S03, determine whether the calibration feedback energy meets expectations, if so, enter S1 to generate an open signal according to the test requirements of the transponder; if not, adjust the calibration energy until the calibration feedback energy meets expectations and then enter S1, that is, generate an open signal according to the test requirements of the transponder.
[0095] It is understandable that the technical solution provided by the embodiment of the present invention can perform self-test on related instruments before testing the transponder, such as self-test on signal generator, RF power amplifier, transmitting antenna, receiving antenna, signal analyzer, memory, display and printer, and detect whether the communication between related devices is normal. Optionally, the self-test signal provided by the embodiment of the present invention can be generated by the test host computer, and the test host computer can control the self-test of related devices that need self-test.
[0096] Then, the test system can be calibrated and debugged. Specifically, the test system can send the calibration energy to the transponder through the control of the test host computer. The transponder generates calibration feedback energy based on the calibration energy. After receiving the calibration feedback energy, the test system determines whether it meets expectations. If it does, the transponder is tested. If it does not meet expectations, the calibration energy is adjusted by debugging the test system until the obtained calibration feedback energy meets expectations, completing the process of debugging the test system. Optionally, the operator can obtain information such as the calibration feedback energy through display on the display.
[0097] refer to Figure 5 FIG. 1 is a flowchart of another transponder testing method provided by an embodiment of the present invention, wherein after calculating and generating the test data in S6 and before processing the test data in S7, the method further includes:
[0098] S04. Determine whether the continuous test duration meets the target requirement. If yes, proceed to step S7 to process the test data. If not, return to step S6 to continue to perform parallel calculations on the energy amplitude, center frequency deviation and maximum time interval error of the signal data to generate test data until the continuous test duration meets the target requirement.
[0099] Correspondingly, an embodiment of the present invention further provides a test host computer, which is applied to a test system of a transponder, and the test system includes a signal generating unit, a transmitting unit, a receiving unit and a signal analyzing unit. Figure 6 FIG. 1 is a schematic diagram of a structure of a test host computer provided by an embodiment of the present invention, wherein the test host computer provided by an embodiment of the present invention includes:
[0100] The main control module 10 is used to generate an open signal according to the test requirements of the transponder, wherein the test requirements include at least one of the continuous test duration, the number of test cycles and the test items, and the continuous test duration is 10s-3h.
[0101] The transmitting module 20 is used to send the start signal to the instrument communication module 30 .
[0102] The instrument communication module 30 adjusts the start signal according to the set communication protocol instruction and outputs it to the instrument driving module 40.
[0103] The instrument driving module 40 is used to send the adjusted start signal to the signal generating unit, wherein the signal generating unit generates a test signal based on the start signal; the transmitting unit is used to send the test signal to the transponder, and the transponder generates a test feedback signal based on the test signal; the receiving unit is used to receive the test feedback signal; the signal analyzing unit is used to analyze the test feedback signal in the time domain and the frequency domain to obtain signal data; the instrument driving module 40 is used to receive the signal data and transmit it to the instrument communication module 30; the instrument communication module 30 adjusts the signal data according to the set communication protocol instructions and transmits it to the receiving module 50.
[0104] The receiving module 50 is used to send the adjusted signal data to the data preprocessing module 60 .
[0105] The data preprocessing module 60 is used to preprocess the signal data and then send it to the energy amplitude calculation module 701, the center frequency deviation calculation module 702 and the maximum time interval error calculation module 703.
[0106] The energy amplitude calculation module 701, the center frequency deviation calculation module 702 and the maximum time interval error calculation module 703 perform parallel calculations of the energy amplitude, center frequency deviation and maximum time interval error on the signal data based on the control of the parallel computing driving module 80, generate test data and transmit it to the main control module 10; the main control module 10 generates a data processing signal according to the test data, wherein the data processing signal includes at least one of a storage signal, a display signal and a print signal.
[0107] It should be noted that the test host computer provided by the embodiment of the present invention may also include at least one of a storage driver module, a display driver module and a printing driver module. The storage driver module may control the memory to store the test data according to the storage signal, the display driver module may control the display to display the test data according to the display signal, and the printing driver module may control the printer to print the paper version of the test signal according to the printing signal. Among them, at least one of the storage driver module, the display driver module and the printing driver module may be a module structure independent of the main control module, and may also be integrated in the main control module, which is not specifically limited by the embodiment of the present invention.
[0108] The embodiment of the present invention provides a transponder test system and a test method and a test host computer, and selects three key indicators, namely energy amplitude, center frequency deviation and maximum time interval error, as test evaluation indicators. The energy amplitude is used to monitor whether the output energy of the transponder decreases when it works for a long time; the center frequency deviation is used to monitor whether the oscillation frequency of the transponder drifts when it works for a long time; and the maximum time interval error is used to monitor whether the data transmission rate of the transponder is stable when it works for a long time. The above three indicators monitor the long-term working status of the transponder from three aspects: transponder working energy, frequency stability and data stability, respectively, covering the basic working functions of the transponder. This monitoring indicator selection scheme achieves the maximum evaluation effect with the least amount of indicator calculation.
[0109] The calculation of energy amplitude, center frequency deviation and maximum time interval error provided by the embodiment of the present invention adopts parallel computing to generate test data, which greatly improves the efficiency of data processing and meets the basic conditions for long-term testing of transponders. The technical solution provided by the embodiment of the present invention meets the demand for long-term testing of transponders and fills the gap in testing transponders in more application scenarios.
[0110] In the description of the present invention, it is necessary to understand that the orientation or position relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.
[0111] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0112] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0113] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0114] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc., mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0115] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.
Claims
1. A transponder testing system, characterized in that: include: A test host computer, the test host computer is used to generate an opening signal according to a test requirement for the transponder, wherein the test requirement includes at least one of a continuous test duration, a number of test cycles, and a test item, and the continuous test duration is 10s-3h; a signal generating unit, wherein the signal generating unit generates a test signal based on the start signal; a transmitting unit, the transmitting unit being configured to transmit the test signal to the transponder, the transponder generating a test feedback signal based on the test signal; A receiving unit, the receiving unit is used to receive the test feedback signal; A signal analysis unit, wherein the signal analysis unit is used to analyze the test feedback signal in the time domain and the frequency domain to obtain signal data; the test host computer is used to perform parallel calculations on the energy amplitude, center frequency deviation and maximum time interval error of the signal data to generate test data, and perform data processing on the test data, wherein the data processing includes at least one of storage, display and printing.
2. The transponder testing system according to claim 1, characterized in that: The test host computer comprises: A test host, wherein the test host generates a data processing signal based on the test data, wherein the data processing signal includes at least one of a storage signal, a display signal, and a print signal; At least one of a memory, a display, and a printer electrically connected to the test host, the memory storing the test data based on the storage signal, the display displaying the test data based on the display signal, and the printer printing the test data based on the print signal; Furthermore, at least one of the memory, the display and the printer is also integrated into the test host.
3. The transponder testing system according to claim 1, characterized in that: The signal generating unit comprises: a signal generator, the signal generator generating a test signal based on the start signal; A radio frequency power amplifier electrically connected to the signal generator, the radio frequency power amplifier being used to amplify the power of the test signal and then output it to the transmitting unit; Furthermore, a first attenuator is electrically connected between the signal generator and the radio frequency power amplifier.
4. The transponder testing system according to claim 1, characterized in that: The transmitting unit comprises a transmitting antenna, and the transmitting antenna is used to send the test signal to the transponder; The receiving unit comprises a receiving antenna, and the receiving antenna is used to receive the test feedback signal; Furthermore, the transmitting unit further includes a second attenuator electrically connected between the transmitting antenna and the signal generating unit.
5. The transponder testing system according to claim 1, characterized in that: The signal analysis unit includes a signal analyzer, and the signal analyzer is used to analyze the test feedback signal in the time domain and the frequency domain to obtain signal data; The signal analysis unit further includes a third attenuator and a filter electrically connected between the receiving unit and the signal analyzer, wherein the third attenuator is electrically connected to one side of the receiving unit, and the filter is electrically connected to one side of the signal analyzer.
6. The transponder testing system according to claim 1, characterized in that: The test host computer is connected to the signal generating unit and the signal analyzing unit via a GPIB bus.
7. A method for testing a transponder, characterized in that: include: Generate an opening signal according to a test requirement for the transponder, wherein the test requirement includes at least one of a continuous test duration, a number of test cycles, and a test item, and the continuous test duration is 10s-3h; generating a test signal based on the start signal; sending the test signal to the transponder, the transponder generating a test feedback signal based on the test signal; receiving the test feedback signal; Performing time domain and frequency domain analysis on the test feedback signal to obtain signal data; Performing parallel calculations on the energy amplitude, center frequency deviation and maximum time interval error of the signal data to generate test data; The test data is processed, wherein the data processing includes at least one of storage, display and printing.
8. The transponder testing method according to claim 7, characterized in that: Before generating an opening signal according to a test requirement for the transponder, the testing method further includes: Generate a self-test signal according to the test requirements of the transponder, so that the test-related instrument performs a self-test based on the self-test signal; sending calibration energy to the transponder, the transponder generating calibration feedback energy based on the calibration energy; Determine whether the calibration feedback energy meets expectations, and if so, generate an enable signal according to the test requirements of the transponder; if not, adjust the calibration energy until the calibration feedback energy meets expectations, and then generate an enable signal according to the test requirements of the transponder.
9. The transponder testing method according to claim 7, characterized in that: After calculating and generating the test data, and before performing data processing on the test data, the method further includes: Determine whether the continuous test duration meets the target requirement. If yes, perform data processing on the test data; if not, continue to perform parallel calculations on the energy amplitude, center frequency deviation and maximum time interval error of the signal data to generate test data until the continuous test duration meets the target requirement.
10. A test host computer, applied to a transponder test system, characterized in that: The test system includes a signal generating unit, a transmitting unit, a receiving unit and a signal analyzing unit, wherein the test host computer includes: A main control module, the main control module is used to generate an opening signal according to a test requirement for the transponder, wherein the test requirement includes at least one of a continuous test duration, a number of test cycles, and a test item, and the continuous test duration is 10s-3h; A transmitting module, the transmitting module is used to send the start signal to the instrument communication module; The instrument communication module adjusts the start signal according to the set communication protocol instruction and outputs it to the instrument drive module; The instrument driving module is used to send the adjusted start signal to the signal generating unit, wherein the signal generating unit generates a test signal based on the start signal; the transmitting unit is used to send the test signal to the transponder, and the transponder generates a test feedback signal based on the test signal; the receiving unit is used to receive the test feedback signal; the signal analyzing unit is used to analyze the test feedback signal in the time domain and the frequency domain to obtain signal data; the instrument driving module is used to receive the signal data and transmit it to the instrument communication module; the instrument communication module adjusts the signal data according to the set communication protocol instruction and transmits it to the receiving module; The receiving module is used to send the adjusted signal data to the data preprocessing module; The data preprocessing module is used to preprocess the signal data and then send it to the energy amplitude calculation module, the center frequency deviation calculation module and the maximum time interval error calculation module; The energy amplitude calculation module, the center frequency deviation calculation module and the maximum time interval error calculation module perform parallel calculations on the signal data based on the control of the parallel calculation driving module, and then generate test data and transmit it to The main control module generates a data processing signal according to the test data, wherein: The data processing signal includes at least one of a storage signal, a display signal and a print signal.
Citation Information
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Transponder test method and device
CN122137479A