CN218473178U - Automatic testing device for telemetering assembly - Google Patents
Automatic testing device for telemetering assembly Download PDFInfo
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- CN218473178U CN218473178U CN202222851986.6U CN202222851986U CN218473178U CN 218473178 U CN218473178 U CN 218473178U CN 202222851986 U CN202222851986 U CN 202222851986U CN 218473178 U CN218473178 U CN 218473178U
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Abstract
The application discloses automatic testing arrangement of telemetering measurement subassembly. This automatic testing arrangement includes: the digital signal generating unit is connected with the main control computer and used for sending the digital signal to the telemetering assembly to be tested; the analog signal generating unit is connected with the main control computer and used for sending an analog signal to the telemetering assembly; the telemetering parameter testing unit is connected with the main control computer and the telemetering assembly and is used for measuring baseband signal parameters and radio frequency signal parameters of the telemetering assembly under the control of the main control computer; the telemetering signal receiving unit is connected with the main control computer and the telemetering assembly and is used for receiving signals output by the telemetering assembly; and the main control computer is used for analyzing the signal sent by the telemetering assembly to generate a test result. The method and the device solve the technical problems of low utilization rate of test resources, high maintenance and guarantee cost in a life cycle, and insufficient application range and adaptability caused by poor compatibility and mutual operability among the test devices.
Description
Technical Field
The application relates to the field of automatic testing, in particular to an automatic testing device of a telemetering assembly.
Background
The development of an automated test platform can be divided into three stages:
the first generation test platform is a special test platform, which is developed mainly for specific test tasks, and is generally used for repetitive work tests with large test workload or for completing complex tests with high reliability and test tasks in a severe environment where test personnel are difficult to enter.
The second generation test platform has standard Interface buses, such as General Purpose Interface Bus (GPIB), computer Aided Measurement and Control (CAMAC), and RS232, and is formed by stacking components based on desktop program Control.
The third generation of test platform is emerging in recent years and still developing, and the integrated automatic test platform mainly constructed by the modular virtualizer has many advantages of large data throughput, light weight, small volume and the like.
At present, the telemetry component is tested in a manual or semi-automatic mode more frequently in the telemetry component research and development process and the finished product detection process, the testing process consumes more time, the content is complex, and the error probability is higher. The main reasons for this difficulty are that the telemetry module requires many kinds of signals and has many channels, and the generation, reception and analysis of all channels and all kinds of signals depend on manual operation, which inevitably results in much time consumption and complex testing process. The variety of test instruments required in testing is often large and bulky, difficult to carry, and presents significant difficulties for field testing of telemetry components. The existing device is difficult to meet the requirements of test work in performance, volume and price. Therefore, there is a strong need for a test platform that can automatically generate, receive, analyze, process, and generate test reports, and has high mobility so as to perform tests in various locations.
Moreover, the automatic testing device mainly aims at specific tested objects, the compatibility and the mutual operability among the testing devices are poor, the utilization rate of testing resources is low, the maintenance and guarantee cost in the life cycle is high, the application range and the adaptability are insufficient, and the efficiency and the accuracy of fault diagnosis are to be improved urgently.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides an automatic testing device of a telemetering assembly, and the automatic testing device at least solves the technical problems of low utilization rate of testing resources, high maintenance and guarantee cost in a life cycle, and insufficient application range and adaptability caused by poor compatibility and mutual operability among testing devices.
According to an aspect of an embodiment of the present application, there is provided an automatic testing apparatus of a telemetry component, including: the remote measurement device comprises a digital signal generating unit, an analog signal generating unit, a remote measurement parameter testing unit, a remote measurement signal receiving unit and a main control computer, wherein the digital signal generating unit is connected with the main control computer and used for generating a digital signal under the control of the main control computer and sending the digital signal to a remote measurement component to be tested; the analog signal generating unit is connected with the main control computer and used for generating an analog signal under the control of the main control computer and sending the analog signal to the telemetering assembly; the remote measurement parameter testing unit is connected with the main control computer and the remote measurement component and is used for measuring baseband signal parameters and radio frequency signal parameters of the remote measurement component under the control of the main control computer; the telemetering signal receiving unit is connected with the main control computer and the telemetering assembly and is used for receiving the signal output by the telemetering assembly and sending the signal sent by the telemetering assembly to the main control computer; and the main control computer is used for analyzing the signal sent by the telemetering assembly to generate a test result.
Optionally, the digital signal generating unit is connected with the main control computer through a peripheral component interconnect standard PCI bus.
Optionally, the digital signal generating unit comprises: the PCI bus module is connected with the FPGA module and is used for sending the data stream of the digital signal generation unit to the FPGA module; the FPGA module is used for controlling the PCI bus and the peripheral circuit interface; and converting the data stream into at least one of the following signals: low-voltage differential signals, RS422 serial port signals and parallel bus signals; a peripheral circuit interface module comprising at least one of: the low-voltage differential signal conversion interface circuit comprises a low-voltage differential signal conversion interface circuit, a parallel bus level driving circuit and an RS422 differential conversion interface circuit.
Optionally, the analog signal generating unit is connected to the main control computer through a peripheral component interconnect standard PCI bus, and is configured to generate a low frequency signal and a pulse signal.
Optionally, the parameter testing unit comprises: the oscilloscope is connected with the main control computer and the telemetering assembly and is used for measuring baseband signal parameters of the telemetering assembly; the spectrum analyzer is connected with the main control computer and the power divider and is used for measuring the radio frequency signal parameters of the telemetering assembly; the power divider is connected with the telemetering assembly and used for respectively inputting signals output by the telemetering assembly to the spectrum analyzer, the oscilloscope and the telemetering signal receiving unit; and the arbitrary waveform generator is connected with the main control computer and the telemetering assembly and is used for simulating a test signal and transmitting the test signal to the telemetering assembly.
Optionally, the oscilloscope, the spectrum analyzer and the arbitrary waveform generator are connected with the main control computer through a local area network bus.
Optionally, the telemetry signal receiving unit is connected with the main control computer through a universal serial bus.
Optionally, the telemetry signal receiving unit comprises: the system comprises a down-conversion module, a digital demodulation module, a frame synchronization data merging module and a data storage and real-time display module, wherein the down-conversion module is connected with the telemetry component, the digital demodulation module and the data storage and real-time display module and is used for converting radio-frequency signals into intermediate-frequency signals; the digital demodulation module is connected with the down-conversion module and the frame synchronization data merging module and is used for carrying out digital processing on the intermediate frequency signal and carrying out digital signal processing; the frame synchronization data merging module is connected with the digital demodulation module and the data storage and real-time display module and is used for completing at least one of the following functions: frame synchronization, time code insertion and digital combination; and the data storage and real-time display module is connected with the down-conversion module and the frame synchronization data merging module and is used for storing the signals output by the telemetering assembly and the real-time display signals.
Optionally, the automatic test equipment further comprises: and the direct-current power supply unit is used for providing direct-current power supply for each module in the automatic testing device.
Optionally, the automatic test equipment further comprises: the device comprises a cabinet, wherein a digital signal generating unit, an analog signal generating unit, a remote measurement parameter testing unit, a remote measurement signal receiving unit, a main control computer, a direct-current power supply unit, a pull-out display and a keyboard unit are respectively arranged in the cabinet; the bottom of the cabinet is provided with a roller with a rolling function; the front panel of the cabinet is provided with a lockset.
In an embodiment of the present application, there is provided an automatic testing apparatus for telemetry components, comprising: the remote measurement device comprises a digital signal generating unit, an analog signal generating unit, a remote measurement parameter testing unit, a remote measurement signal receiving unit and a main control computer, wherein the digital signal generating unit is connected with the main control computer and used for generating a digital signal under the control of the main control computer and sending the digital signal to a remote measurement component to be tested; the analog signal generating unit is connected with the main control computer and used for generating an analog signal under the control of the main control computer and sending the analog signal to the telemetering assembly; the remote measurement parameter testing unit is connected with the main control computer and the remote measurement component and is used for measuring baseband signal parameters and radio frequency signal parameters of the remote measurement component under the control of the main control computer; the telemetering signal receiving unit is connected with the main control computer and the telemetering assembly and is used for receiving the signal output by the telemetering assembly and sending the signal sent by the telemetering assembly to the main control computer; the main control computer is used for analyzing signals sent by the telemetering assembly to generate a test result, and achieves the purpose of automatically generating, receiving, analyzing and processing various test signals and generating a test report, so that the technical effect of quickly and conveniently testing the remote control assembly in various places is achieved, and the technical problems of low utilization rate of test resources, high maintenance and guarantee cost in a life cycle, and insufficient application range and adaptability caused by poor compatibility and mutual operability among testing devices are solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a block diagram of an automatic testing apparatus for telemetry components according to an embodiment of the present application;
FIG. 2 is a block diagram of a digital signal generating unit according to an embodiment of the present application;
FIG. 3 is a block diagram of a parameter testing unit according to an embodiment of the present application;
FIG. 4 is a block diagram of a telemetry signal receiving unit according to an embodiment of the present application;
FIG. 5 is a block diagram of another automatic testing apparatus for telemetry components according to an embodiment of the application;
FIG. 6 is a block diagram of another apparatus for automatic testing of telemetry components, in accordance with embodiments of the present application.
Detailed Description
In order to make persons skilled in the art better understand the solution of the present embodiment, the technical solution in the embodiment of the present embodiment will be clearly and completely described below with reference to the drawings in the embodiment of the present embodiment, and it is obvious that the described embodiment is only a part of the embodiment of the present embodiment, and not a whole embodiment. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present embodiment without any creative efforts shall fall within the protection scope of the present embodiment.
It should be noted that the terms "first", "second", and the like in the description and the claims of the present embodiment and the drawings are used for distinguishing similar objects and not necessarily for describing a particular order or sequence. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the present embodiment described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a block diagram of an automatic test apparatus for a telemetry assembly according to an embodiment of the present application, as shown in fig. 1, the automatic test apparatus including: a digital signal generating unit 101, an analog signal generating unit 102, a telemetry parameter testing unit 103, a telemetry signal receiving unit 104, and a main control computer 105, wherein,
and the digital signal generating unit 101 is connected with the main control computer 105 and is used for generating a digital signal under the control of the main control computer 105 and sending the digital signal to the telemetry component to be tested.
As an alternative embodiment of the present application, the digital signal generating unit 101 is connected to the telemetry package via a dedicated cable and an aviation plug, and inputs digital signals that may be generated by various aircraft to the telemetry package.
And the analog signal generating unit 102 is connected with the main control computer 105 and used for generating an analog signal under the control of the main control computer 105 and sending the analog signal to the telemetry component.
As an alternative embodiment of the present application, the analog signal generating unit 102 is connected to the telemetry package via a dedicated cable and an aviation plug, and inputs analog signals that may be generated by various aircraft to the telemetry package.
And the remote measurement parameter testing unit 103 is connected with the main control computer 105 and the remote measurement component and is used for measuring the baseband signal parameters and the radio frequency signal parameters of the remote measurement component under the control of the main control computer 105.
In some alternative embodiments of the present application, the baseband signal parameters and the rf signal parameters are parameters that are essential to characterizing the operating state of the telemetry component.
And the telemetering signal receiving unit 104 is connected with the main control computer 105 and the telemetering assembly, and is used for receiving the signal output by the telemetering assembly and sending the signal sent by the telemetering assembly to the main control computer 105.
As another alternative embodiment of the present application, the telemetry signal receiving unit 104 may receive and demodulate the signal sent by the telemetry component in a wired or wireless manner, and analyze and process the received signal, which is equivalent to a ground receiving station.
And the main control computer 105 is used for analyzing the signal sent by the telemetering assembly to generate a test result.
As an alternative embodiment of the present application, the host computer 105 may analyze the signals sent by the telemetry component to determine whether there is an anomaly in the telemetry component.
Through the device, the purposes of automatically generating, receiving and analyzing various test signals and generating test reports are achieved, and the technical effect of quickly and conveniently testing the remote control assembly in various places is achieved.
According to an alternative embodiment of the present application, the digital signal generating unit 101 is connected to the host computer 105 through a peripheral component interconnect standard PCI bus.
According to an alternative embodiment of the present application, when the analog telemetry module is in an operating state, the digital signal generating unit 101 needs to generate a plurality of signals, and the amount of data transmitted by the bus is large, so that a high transmission speed is required for the bus interface between the digital signal generating unit 101 and the host computer 105. The transmission speed of the peripheral component interconnect standard PCI bus can reach 133MB/s, and the peripheral component interconnect standard PCI bus has the advantages of simple structure, low cost and simple design.
According to an alternative embodiment of the present application, the analog signal generating unit 102 is connected to the host computer 105 through a Peripheral Component Interconnect (PCI) bus, and is configured to generate a low frequency signal and a pulse signal.
As an alternative embodiment, the PCI standard is the most widely used interface in personal computers, with slots on almost all motherboard products, and with fast transmission rates.
According to an alternative embodiment of the present application, the telemetry signal receiving unit 104 is connected to the host computer 105 via a universal serial bus.
In the embodiment of the application, the universal serial bus is widely used in personal computers, and the conventional computers are provided with more serial bus interfaces, so that a user can conveniently connect a measuring instrument to the whole test platform through the universal serial bus. And the universal serial bus can support 127 devices at most through the internal expansion interface, and the data transmission rate of the universal serial bus 2.0 can reach 40MB/s in the aspect of transmission rate, so that the requirements of a test platform for high-speed and large-data transmission can be met. Thus, the telemetry signal receiving unit 104 is connected to the host computer 105 using a universal serial bus.
Fig. 2 is a block diagram of a digital signal generating unit according to an embodiment of the present application, and as shown in fig. 2, the digital signal generating unit includes: PCI bus module 10101, field programmable gate array FPGA module 10102, and peripheral circuit interface module 10103, wherein,
the PCI bus module 10101 is connected to the field programmable gate array FPGA module 10102, and is configured to send the data stream of the digital signal generating unit 101 to the field programmable gate array FPGA module 10102; the FPGA module 10102 for controlling the PCI bus and the peripheral circuit interface; and converting the data stream into at least one of the following signals: low-voltage differential signals, RS422 serial port signals and parallel bus signals; peripheral circuit interface module 10103, comprising at least one of: the low-voltage differential signal conversion interface circuit comprises a low-voltage differential signal conversion interface circuit, a parallel bus level driving circuit and an RS422 differential conversion interface circuit.
According to another alternative embodiment of the present application, the FPGA module 10102 mainly implements control of converting data stream into low voltage differential high speed serial signals, programmable high speed RS422 signals, parallel bus signals and PCI bus protocol required by the system and satisfying the timing protocol.
As an optional embodiment of the present application, the PCI bus module 10101 is connected to the FPGA module 10102, and a PCI specific interface chip is selected to ensure stability and reliability of the system, and the PCI specific interface chip may be a PC19054 type, which has the advantages of high cost performance, good versatility and compatibility, and mature implementation technology.
According to another optional embodiment of the present application, the field programmable gate array FPGA module 10102 is connected to the peripheral circuit interface module 10103, and a 120 ten thousand FPGA chip of XC3S1200E type may be used as a development platform of the on-chip programmable system, so as to implement logic control functions such as parallel signal generation, RS422 serial port signal generation, image signal generation, PCI bus control, and external interface control in the FPGA.
According to an alternative embodiment of the present application, the peripheral circuit interface module 10103 includes a low voltage differential signal conversion interface circuit, a parallel bus level driver circuit, and an RS422 differential conversion interface circuit. The low-voltage differential signal conversion interface circuit can be of a MAX9110 model, and the chip can realize the conversion from LVTTL level or COM level to LVDS level under the power supply of 3.3V. The maximum transmission rate of signals is 500ps, the maximum delay of signal conversion is only 250ps, the low-voltage differential signals are output in a current output mode, typical output current is 3.5mA, and the maximum power consumption is 22mW. The parallel bus level driving circuit can adopt an 8-way bus transceiver 74CTHJKLS245 with 3-state output, the working voltage is 5V, the input and output level standards all adopt TTL levels, a chip allows double-end data transmission, and the transmission direction is driven by direction pin logic levels. The RS422 differential conversion interface circuit can select a MAX3295 type sending chip, supports 20Mbps highest-rate transmission, has a working voltage of 3.3V, and supports-7V to 2V voltage input.
Fig. 3 is a structural diagram of an alternative parameter testing unit according to an embodiment of the present application, and as shown in fig. 3, the parameter testing unit includes: an oscilloscope 10301, a spectrum analyzer 10302, an arbitrary waveform generator 10303, and a power splitter 10304, wherein,
according to an alternative embodiment of the present application, the parameter testing unit 103 comprises: the system comprises an oscilloscope 10301, a spectrum analyzer 10302, an arbitrary waveform generator 10303 and a power divider 10304, wherein the oscilloscope 10301 is connected with a main control computer 105 and a telemetering assembly and is used for measuring baseband signal parameters of the telemetering assembly; a spectrum analyzer 10302 connected to the main control computer 105 and the power splitter 10304 for measuring the radio frequency signal parameters of the telemetry component; the power divider 10304 is connected with the telemetry component and is used for inputting signals output by the telemetry component into the spectrum analyzer 10302, the oscilloscope 10301 and the telemetry signal receiving unit 104 respectively; and the arbitrary waveform generator 10303 is connected with the main control computer 105 and the telemetry component and is used for simulating the test signal and transmitting the test signal to the telemetry component.
According to an alternative embodiment of the present application, the oscilloscope 10301 may be selected from the model DPO2012, with a bandwidth of 100MHz, a rise time of 3.5ms, a time base range of 4-100ms, and a storage depth of 1M. The oscilloscope 10301 is used to simulate various test signals, such as analog signals including sinusoidal, square wave, triangular wave, and pulse signals, and to provide the test signals to the circuit under test to meet the test requirements. Specifically, according to user settings, generating output signals with specific signal types, frequencies and amplitude parameters, and storing data into a designated array; opening a corresponding channel according to user setting, and writing the generated signal data into a storage unit; and finally, outputting the signals according to parameters such as the set updating rate, the trigger mode, the output mode of the analog signals and the like. The spectrum analyzer 10302 may be of type N9010A-507, with a bandwidth of 7GHz to support analog demodulation, FM demodulation bandwidth up to 8MHz and continuous power up to 5W. The arbitrary waveform generator 10303, which may be of the AFG3021B type, may output sinusoidal and square waves with an amplitude of 0-10V, an amplitude accuracy of ± 1%, and a frequency range of 25MHz. The power divider 10304 can be a common model with isolation greater than 20DB, bandwidth greater than 10Mhz, and input power consumption less than 1 DB.
According to another alternative embodiment of the present application, the oscilloscope 10301, the spectrum analyzer 10302, and the arbitrary waveform generator 10303 are connected to the host computer 105 through a LAN bus.
In some optional embodiments of the present application, in the telemetry signal parameter test, the data transmission amount is small, but a plurality of instruments need to be controlled simultaneously, so the selected external bus interface can be shared by a plurality of instruments simultaneously, the local area network bus has the advantages of high speed, easy use, low cost and long service life, and the local area network bus has the advantages of a large number of support nodes, convenient connection, long transmission distance, convenient connection with a computer and the internet, and the like, so after factors such as the expansibility and the cost of the system are comprehensively considered, the local area network bus is adopted for connecting the oscilloscope 10301, the spectrum analyzer 10302, the arbitrary waveform generator 10303 and the main control computer 105 of the test device.
Fig. 4 is a block diagram of a telemetry signal receiving unit according to an embodiment of the present application, as shown in fig. 4, the telemetry signal receiving unit including: a down-conversion module 10401, a digital demodulation module 10402, a frame synchronization data combination module 10403, and a data storage and real-time display module 10404, wherein the down-conversion module 10401 is connected to the digital demodulation module 10402 and the data storage and real-time display module 10404, and is configured to convert a radio frequency signal into an intermediate frequency signal; a digital demodulation module 10402 connected to the down-conversion module 10401 and the frame synchronization data merging module 10403, and configured to perform digital processing on the intermediate frequency signal and perform digital signal processing; a frame synchronization data merging module 10403, connected to the digital demodulation module 10402 and the data storage and real-time display module 10404, configured to complete at least one of the following functions: frame synchronization, time code insertion and digital combination; and a data storage and real-time display module 10404 connected to the down-conversion module 10401 and the frame synchronization data combination module 10403 and configured to store the signal output by the telemetry component and the real-time display signal.
According to an alternative embodiment of the present application, the down-conversion module 10401 performs filtering and frequency mixing on the radio frequency signal, and then amplifies the radio frequency signal into an intermediate frequency signal that is easy to process, and needs a reasonable filtering measure to achieve suppression, and also has a proper gain distribution to satisfy the system gain and dynamic range. The two-stage mixing scheme is adopted in the application, and the advantage of the two-stage mixing is that the second-stage filter is also helpful for filtering interference signals, and the requirement on the filter is low. The digital demodulation module 10402 may select Pulse Code Modulation (PCM) -Frequency Modulation (FM) digital demodulation, which is implemented by performing digital processing on an intermediate Frequency signal through a high-speed data acquisition module and then performing digital signal processing, wherein the digital down-conversion module generates a Frequency mixing through a digital down-conversion signal and generated sine and cosine signals to obtain an orthogonal signal; and then a loop tracking module is used for receiving and transmitting signal amplitude offset errors caused by frequency differences of sine and cosine signals. The frame synchronization data merging module 10403 mainly performs frame synchronization, time code insertion, digital merging, and the like, where the frame synchronization is to detect a synchronization code from the PCM digital stream for locking. The time code is inserted into the internal time code, and the internal time code is the time information extracted from the computer. The data storage and real-time display module 10404 may receive the frame-synchronized PCM data stream, merge the PCM data stream with the time code data stream, and establish a suitable data channel, so that the merged data stream can be partially processed in real time by a computer, and meanwhile, frame loss-free storage may also be implemented.
FIG. 5 is a block diagram of another automatic test apparatus for telemetry components in accordance with an embodiment of the present application, as shown in FIG. 5, the automatic test apparatus further comprising: a dc power supply unit 106, wherein the dc power supply unit 106 is configured to provide dc power to each module in the automatic test apparatus.
The testing device is connected with the telemetering assembly through a detachable cable, so that the telemetering assemblies to be tested of different types can be tested through different cables, and the universality of the whole device is improved; in addition, the detachable cable occupies a small space and is convenient to carry, and the mobility of the testing device is greatly improved.
Fig. 6 is a block diagram of another automatic test apparatus for a telemetry assembly according to an embodiment of the present application, as shown in fig. 6, the automatic test apparatus further including: the cabinet 107 has, therein,
the digital signal generating unit 101, the analog signal generating unit 102, the telemetry parameter testing unit 103, the telemetry signal receiving unit 104, the main control computer 105 and the direct-current power supply unit 106 are respectively arranged inside the cabinet 107; the bottom of the cabinet 107 is provided with a roller with a rolling function; the front panel of the cabinet 107 is provided with a lock.
As an alternative embodiment, in order to improve the integration and mobility of the testing device, the cabinet 107 should be as small as possible for easy implementation. The reference dimensions of the cabinet 107 are 120cm high, 60cm wide and 60cm thick. The cabinet 107 mainly concentrates on 3 aviation interfaces for external signal connection, and in order to avoid that more cables influence the operation keyboard, the cables are centrally arranged on the middle lower part of the cabinet and output through the rear panel. The bottom of the cabinet is provided with rollers for pushing, and the cabinet has a locking function so as to be convenient to fix in use, the front panel of the cabinet 107 is a glass door, and a door lock device can be arranged on the front panel of the cabinet 107.
Through the device, the composition and the characteristics of the automatic testing device are related to a virtualizer, a bus technology and the like, the characteristics and the requirements of the telemetering assembly in the testing process are carefully analyzed, and the automatic testing device has the characteristics of high speed, high accuracy, multiple parameters, small size, strong mobility and the like.
In an optional embodiment of the present application, the present application further provides a software scheme, where the scheme includes two parts, namely, instrument control software and telemetry data processing software, and the instrument control software may be divided into a signal simulation unit, a detection device unit, and a radio frequency and baseband measurement unit; the telemetry data processing software comprises a telemetry signal receiving and synchronous demodulating unit, an image decompressing unit, a signal parameter evaluating unit, a data display unit and a test report generating and printing unit. The scheme adopts Labwindows/CVI as a development platform, the platform has an integrated development environment, an independent application program, a friendly interface editing mode, an automatic source code generation function, a rich function library and an expansion function, and the platform is an interactive C language development platform facing to an instrument. The integrated development platform of the platform, the interactive programming method and the abundant controls and function libraries greatly enhance the function of the C language, are suitable for compiling test programs with complex structures and high requirements on execution speed, provide an ideal software development environment for developers familiar with the C language to establish a detection system, an automatic test environment, a data acquisition system, a process monitoring system and the like, and completely meet the requirements of the test device on the software development environment. Labwindows/CVI is used as a development platform, test modules such as measurement instrument control, signal generation card control and test report generation are realized, and convenience is created for maintenance and upgrading of a software platform in the future.
By the scheme, each functional module in the software system is reasonably divided, and interfaces for communication between modules respectively in the same process in the whole software platform are designed, so that data and message transmission among processes and synchronous execution of related processes are realized.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or may not be executed. In addition, the shown or discussed coupling or direct coupling or communication connection between each other may be an indirect coupling or communication connection through some interfaces, units or modules, and may be electrical or in other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present embodiment, and these modifications and decorations should also be regarded as the protection scope of the present embodiment.
Claims (10)
1. An apparatus for automatic testing of a telemetry assembly, comprising: a digital signal generating unit, an analog signal generating unit, a remote measuring parameter testing unit, a remote measuring signal receiving unit and a main control computer, wherein,
the digital signal generating unit is connected with the main control computer and used for generating a digital signal under the control of the main control computer and sending the digital signal to the telemetry component to be tested;
the analog signal generating unit is connected with the main control computer and used for generating an analog signal under the control of the main control computer and sending the analog signal to the telemetering assembly;
the telemetering parameter testing unit is connected with the main control computer and the telemetering assembly and is used for measuring baseband signal parameters and radio frequency signal parameters of the telemetering assembly under the control of the main control computer;
the telemetering signal receiving unit is connected with the main control computer and the telemetering assembly and is used for receiving the signal output by the telemetering assembly and sending the signal sent by the telemetering assembly to the main control computer;
and the main control computer is used for analyzing the signal sent by the telemetering assembly to generate a test result.
2. The automatic test device of claim 1, wherein the digital signal generating unit is connected to the host computer via a Peripheral Component Interconnect (PCI) bus.
3. The automatic test device according to claim 2, wherein the digital signal generating unit comprises:
PCI bus module, FPGA module and peripheral circuit interface module, wherein,
the PCI bus module is connected with the field programmable gate array FPGA module and is used for sending the data stream of the digital signal generation unit to the field programmable gate array FPGA module;
the FPGA module is used for controlling the PCI bus and the peripheral circuit interface; and converting the data stream into at least one of the following signals: low-voltage differential signals, RS422 serial port signals and parallel bus signals;
the peripheral circuit interface module comprises at least one of the following: the low-voltage differential signal conversion interface circuit comprises a low-voltage differential signal conversion interface circuit, a parallel bus level driving circuit and an RS422 differential conversion interface circuit.
4. The automatic test device of claim 1, wherein the analog signal generating unit is connected to the main control computer through a Peripheral Component Interconnect (PCI) bus, and is configured to generate the low frequency signal and the pulse signal.
5. The automatic test device of claim 1, wherein the telemetry parameter testing unit comprises: an oscilloscope, a spectrum analyzer, an arbitrary waveform generator, and a power splitter, wherein,
the oscilloscope is connected with the main control computer and the telemetering assembly and is used for measuring baseband signal parameters of the telemetering assembly;
the spectrum analyzer is connected with the main control computer and the power divider and is used for measuring the radio frequency signal parameters of the telemetering assembly;
the power divider is connected with the telemetry component and used for respectively inputting the signals output by the telemetry component to the spectrum analyzer, the oscilloscope and the telemetry signal receiving unit;
the arbitrary waveform generator is connected with the main control computer and the telemetering assembly and used for simulating a test signal and transmitting the test signal to the telemetering assembly.
6. The automatic test equipment of claim 5, wherein said oscilloscope, said spectrum analyzer and any waveform generator are connected to said host computer through a local area network bus.
7. The automatic test device of claim 1, wherein said telemetry signal receiving unit is connected to said host computer via a universal serial bus.
8. The automatic test device of claim 1, wherein the telemetry signal receiving unit comprises: a down-conversion module, a digital demodulation module, a frame synchronization data merging module and a data storage and real-time display module, wherein,
the down-conversion module is connected with the telemetry component, the digital demodulation module and the data storage and real-time display module and is used for converting radio frequency signals into intermediate frequency signals;
the digital demodulation module is connected with the down-conversion module and the frame synchronization data merging module and is used for carrying out digital processing on the intermediate frequency signal and carrying out digital signal processing;
the frame synchronization data merging module is connected with the digital demodulation module and the data storage and real-time display module and is used for completing at least one of the following functions: frame synchronization, time code insertion and digital combination;
and the data storage and real-time display module is connected with the down-conversion module and the frame synchronization data merging module and is used for storing the signals output by the telemetry component and displaying the signals in real time.
9. The automatic test device of claim 1, further comprising:
and the direct-current power supply unit is used for providing direct-current power supply for each module in the automatic testing device.
10. The automatic test device of claim 9, further comprising:
the equipment comprises a cabinet, wherein the digital signal generating unit, the analog signal generating unit, the remote measuring parameter testing unit, the remote measuring signal receiving unit, the main control computer, the direct-current power supply unit, a pull-out display and a keyboard unit are respectively arranged in the cabinet;
the bottom of the cabinet is provided with a roller with a rolling function;
the front panel of the cabinet is provided with a lockset.
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| CN202222851986.6U CN218473178U (en) | 2022-10-27 | 2022-10-27 | Automatic testing device for telemetering assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115996095A (en) * | 2023-03-22 | 2023-04-21 | 天津讯联科技有限公司 | Automatic telemetry transmitter testing device and testing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115996095A (en) * | 2023-03-22 | 2023-04-21 | 天津讯联科技有限公司 | Automatic telemetry transmitter testing device and testing method thereof |
| CN115996095B (en) * | 2023-03-22 | 2023-06-27 | 天津讯联科技有限公司 | Automatic telemetry transmitter testing device and testing method thereof |
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