Ground wireless measurement system based on telemetry data acquisition

Abstract

The invention provides a ground wireless measurement system based on telemetry data acquisition, and belongs to the technical field of measurement and control communication, the system comprises a sensor group, a comprehensive measurement unit and a transmitting antenna, the comprehensive measurement unit comprises an analog quantity acquisition module and a comprehensive radio frequency module; performing data framing on multiple groups of to-be-measured physical quantities acquired by a sensor group through an analog quantity acquisition module to generate multiple groups of PCM code streams; the comprehensive radio frequency module receives multiple groups of PCM streams transmitted by the analog quantity acquisition module and then performs frequency modulation telemetering RF output, and cooperates with the transmitting antenna to realize wireless transceiving and processing of data, so that the flexibility of a test run measurement system and the accuracy of measured data are greatly improved; real-time monitoring of key parameters in the ground test run process is achieved through the telemetering technology, the flexibility and accuracy of measurement are improved, the labor cost and the time cost are reduced, and the test run efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of measurement, control and communication technology, and in particular to a ground wireless measurement system based on telemetry data acquisition. Background Art

[0002] Wired measurement systems have been widely used in engine ground test systems. The existing measurement system transmits the displacement, vibration, temperature, stress and other data collected by the sensor to the data acquisition control end through cables, so as to judge and analyze the working status of the engine. Although this subsystem has mature applications in the field of ground test, it still has the following shortcomings: First, the existing test measurement systems are all wired measurement systems. When the test task is to be carried out, the measurement system is relatively complicated to build, and the labor cost and time cost required are relatively large, and the test task cannot be carried out flexibly; second, when the data acquisition control end is far away from the test platform, the use of cables to transmit signals will cause the collected signals to have a large deviation from the real signal. Summary of the invention

[0003] The present invention aims to solve the shortcomings of the existing test measurement system, such as complicated construction and easy data distortion, and proposes a ground wireless measurement system based on telemetry data acquisition, which greatly increases the flexibility of the test measurement system and the accuracy of the measurement data.

[0004] In a first aspect, the present invention provides a ground wireless measurement system based on telemetry data acquisition, the system comprising a sensor group, an integrated measurement unit and a transmitting antenna, the integrated measurement unit comprising: an analog quantity acquisition module and an integrated radio frequency module;

[0005] The analog quantity acquisition module is used to perform data framing on the multiple groups of physical quantities to be measured acquired by the sensor group, and generate multiple groups of PCM code streams;

[0006] The integrated radio frequency module is used to receive multiple groups of PCM streams transmitted by the analog quantity acquisition module and then perform frequency modulation telemetry RF output, and cooperate with the transmitting antenna to realize wireless transmission, reception and processing of data;

[0007] The analog quantity acquisition module includes a multi-channel sensor input interface, a multi-channel gating circuit, a signal conditioning and conversion unit, an FPGA processing unit and an output unit; the multi-channel sensor input interface is used to receive multiple analog signals of different voltage levels and transmit them to the signal conditioning and conversion unit; the multi-channel gating circuit is used to selectively transmit the analog signal to the signal conditioning and conversion unit; the signal conditioning and conversion unit is used to perform analog-to-digital signal conversion on the analog signal to obtain a digital signal and transmit it to the FPGA processing unit; the FPGA processing unit is used to receive and process the digital signal to generate instruction data, and control the gating state of the multi-channel gating circuit, and at the same time interact with the output unit for data; the output unit is used to output the instruction data according to different level standards to achieve data interaction with the integrated RF module.

[0008] As described in the ground wireless measurement system based on telemetry data acquisition, the multi-channel sensor input interface includes at least one 5V sensor input.

[0009] As described in the ground wireless measurement system based on telemetry data acquisition, the multi-channel gating circuit includes a plurality of 16-channel gating circuits, which are used to control the transmission of 16-channel sensor signals respectively.

[0010] As described in the ground wireless measurement system based on telemetry data acquisition, the signal conditioning and conversion unit includes an operational amplifier circuit and an AD converter connected in sequence;

[0011] The operational amplifier circuit is used to preliminarily amplify the analog signal; wherein the operational amplifier circuit includes a plurality of independent operational amplifier units, and each operational amplifier unit corresponds to one sensor input.

[0012] The AD converter is used to convert the analog signal amplified by the operational amplifier circuit into a digital signal.

[0013] As described in the ground wireless measurement system based on telemetry data acquisition, the AD converter includes multiple AD7066 chips, each chip is responsible for converting the output signals of multiple operational amplifier units into digital signals.

[0014] As described in the ground wireless measurement system based on telemetry data acquisition, the output unit includes at least one single-machine synchronous 485 bus, two 5V PCM outputs, and six TTL level outputs.

[0015] As described in the ground wireless measurement system based on telemetry data acquisition, the power management unit includes an isolation circuit for achieving power isolation.

[0016] As described in the ground wireless measurement system based on telemetry data acquisition, the integrated measurement unit also includes a power supply board for converting the 28V input voltage into a +5V power supply to power the analog acquisition module and the integrated RF module, and providing ±15V and 5V power supplies for the sensor.

[0017] As described in the ground wireless measurement system based on telemetry data acquisition, the sensor group is used to convert the collected physical quantities to be measured into electrical pressure signals and send them to the integrated measurement unit. The sensor group includes a displacement sensor, a vibration sensor, a temperature sensor and a stress sensor.

[0018] The ground wireless measurement system based on telemetry data collection as described above further includes: a receiving antenna for receiving a radio frequency signal transmitted by the transmitting antenna;

[0019] A ground station is used to receive, store and process radio frequency signals transmitted by the transmitting antenna;

[0020] The host computer is used to process the data transmitted by the ground station and restore the received voltage data to physical quantities to obtain measurement data.

[0021] The ground wireless measurement system based on telemetry data acquisition provided by the present invention expands the use of telemetry systems in ground test situations, aiming at the situation that existing telemetry systems are used in a single manner; aiming at the shortcomings of existing test measurement systems, such as complicated construction and easy data distortion, multiple groups of physical quantities to be measured collected by a sensor group are framed by an analog quantity acquisition module to generate multiple groups of PCM code streams; after receiving multiple groups of PCM streams transmitted by the analog quantity acquisition module, a frequency-modulated telemetry RF output is performed through an integrated radio frequency module, and wireless data transmission and processing are realized in coordination with a transmitting antenna, thereby greatly increasing the flexibility of the test measurement system and the accuracy of the measurement data, realizing real-time monitoring of key parameters in the ground test process through telemetry technology, improving the flexibility and accuracy of measurement, reducing labor costs and time costs, and improving test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is one of the structural schematic diagrams of an optional ground wireless measurement system based on telemetry data acquisition provided by an embodiment of the present invention;

[0024] Figure 2is a schematic structural diagram of an optional integrated measurement unit provided by an embodiment of the present invention;

[0025] Figure 3 It is a structural diagram of an analog quantity acquisition module provided by an embodiment of the present invention;

[0026] Figure 4 is a schematic structural diagram of an optional power board system provided in an embodiment of the present invention;

[0027] Figure 5 This is a second structural diagram of an optional ground wireless measurement system based on telemetry data acquisition provided by an embodiment of the present invention;

[0028] Figure 6 It is a flowchart of an optional ground wireless measurement system operation based on telemetry data collection provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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.

[0030] It should be noted that in the description of the embodiments of the present invention, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "include one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements. The orientation or position relationship indicated by the terms "upper", "lower" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the system or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0032] Combine the following Figure 1-Figure 6 The present invention describes a ground wireless measurement system based on telemetry data collection provided by an embodiment of the present invention.

[0033] Figure 1 is one of the structural diagrams of an optional ground wireless measurement system based on telemetry data acquisition provided by an embodiment of the present invention, such as Figure 1 As shown, the system includes: a sensor group, an integrated measurement unit and a transmitting antenna, and the integrated measurement unit includes: an analog quantity acquisition module and an integrated radio frequency module;

[0034] The analog quantity acquisition module is used to frame the data of multiple groups of physical quantities to be measured collected by the sensor group and generate multiple groups of PCM code streams;

[0035] The integrated RF module is used to receive multiple groups of PCM streams transmitted by the analog acquisition module and then perform frequency modulation telemetry RF output, and cooperate with the transmitting antenna to realize wireless transmission, reception and processing of data;

[0036] Among them, the analog quantity acquisition module includes a multi-channel sensor input interface, a multi-channel gating circuit, a signal conditioning and conversion unit, an FPGA processing unit and an output unit; the multi-channel sensor input interface is used to receive multiple analog signals of different voltage levels and transmit them to the signal conditioning and conversion unit; the multi-channel gating circuit is used to selectively transmit the analog signal to the signal conditioning and conversion unit; the signal conditioning and conversion unit is used to convert the analog signal into a digital signal, obtain a digital signal and transmit it to the FPGA processing unit; the FPGA processing unit is used to receive and process the digital signal to generate instruction data, and control the gating state of the multi-channel gating circuit, and interact with the output unit at the same time; the output unit is used to output the instruction data according to different level standards to realize data interaction with the integrated RF module.

[0037] The core of the present invention is to provide a ground wireless measurement system based on telemetry data collection, which has efficient and accurate data collection and transmission capabilities and is suitable for ground test measurement systems. The system includes a sensor group, an integrated measurement unit and a transmitting antenna.

[0038] Among them, the sensor group is responsible for collecting physical quantities such as displacement, vibration, temperature, stress, etc., and converting them into electrical pressure signals.

[0039] Figure 2 A structural diagram of a comprehensive measurement unit provided by the present invention is shown in FIG. Figure 2 As shown, the main function of the integrated measurement unit is to power the displacement sensor and the impact vibration sensor and collect the output voltage of the sensor. When the analog acquisition module collects the sensor information, the PCM code stream is led to the PCM input port of the integrated RF board through the cable network, and then a 4M continuous PCM code stream is sent through the transmitting antenna.

[0040] Figure 3 A schematic diagram of the structure of an analog quantity acquisition module provided by the present invention is shown in FIG. Figure 3 As shown, the analog quantity acquisition module includes a multi-channel sensor input interface, a multi-channel gating circuit, a signal conditioning and conversion unit, an FPGA processing unit and an output unit. The multi-channel sensor input interface is used to receive multiple analog signals of different voltage levels and transmit them to the signal conditioning and conversion unit. The multi-channel gating circuit is used to selectively transmit the analog signal to the signal conditioning and conversion unit.

[0041] Optionally, the multi-channel sensor input interface includes at least one 5V sensor input.

[0042] Optionally, the multi-channel gating circuit includes a plurality of 16-channel gating circuits, which are used to control the transmission of 16-channel sensor signals respectively.

[0043] Optionally, the AD converter includes multiple AD7066 chips, each chip is responsible for converting output signals of multiple operational amplifier units into digital signals.

[0044] Optionally, the signal conditioning and conversion unit includes an operational amplifier circuit and an AD converter connected in sequence. The operational amplifier circuit is used to preliminarily amplify the analog signal, wherein the operational amplifier circuit includes a plurality of independent operational amplifier units, each operational amplifier unit corresponding to one sensor input. The AD converter is used to convert the analog signal amplified by the operational amplifier circuit into a digital signal.

[0045] In an optional embodiment, the FPGA processing unit is used to receive and process digital signal generation instruction data, control the gating state of the multi-way gating circuit, and perform data interaction with the output unit. The output unit is used to output the instruction data according to different level standards to achieve data interaction with the integrated radio frequency module.

[0046] Optionally, the output unit includes at least one single-machine synchronous 485 bus, two 5V PCM outputs, and six TTL level outputs.

[0047] In an optional embodiment, the main technical indicators of analog quantity acquisition are as follows:

[0048] The power module provides analog ±15V, +5V and digital 5V voltages, and the total power consumption is no more than 5W.

[0049] Data storage: SDRAM storage space 64MB, configured FLASH storage space not less than 8kB; 4 AD7606 analog acquisition circuits. One of them completes 32-channel attitude control MF61 temperature sensor measurement, 16-channel attitude control MZBB-2 temperature sensor measurement and 16-channel 0V~5V sensor measurement; the other 3 ADs complete 24-channel 0V~5V sensor measurement.

[0050] The sampling channel gating and A / D conversion timing are controlled by FPGA. The analog signal conversion and gating circuits should use the existing mature circuits as much as possible.

[0051] Two LTM2881 interface chips are used: the chip input and output enable are connected to the FPGA and can be configured through software (can be configured as 2 asynchronous RS-485 / 422 interfaces, or 1 synchronous 485 / 422 interface and 2 PCM outputs). The chip differential level signal grounds are isolated from each other.

[0052] 8-way TTL input: realize TTL level instruction and switch quantity measurement;

[0053] 4-way isolated command input: realize 28V live command measurement;

[0054] 8-way TTL output: 2-way TTL level telemetry PCM output, 6-way TTL level command output; all outputs need to be connected to pull-up resistors.

[0055] FPGA internal resources: logic unit not less than 15k; RAM not less than 500kbit; DCM not less than 2.

[0056] The analog acquisition module realizes the measurement of overall environmental parameters and the monitoring of the internal working voltage of a single machine, and collects 8-way switching quantity and 4-way isolation command. After data framing, it is output through the single machine synchronous 485 bus and 2-way 5V TTL level PCM, and 6-way command output is reserved.

[0057] In an optional embodiment, the power management unit includes an isolation circuit for isolating the power supply to ensure stable operation of the system.

[0058] Based on the contents of the above embodiments, as an optional embodiment, the integrated measurement unit in the ground wireless measurement system based on telemetry data acquisition provided by the present invention also includes a power supply board for converting the 28V input voltage into a +5V power supply to power the analog acquisition module and the integrated RF module, and provide ±15V and 5V power supplies for the sensor.

[0059] Specifically, the main technical indicators of the power board can be as follows:

[0060] Power supply input: Isolate 28V input; have short circuit protection function;

[0061] The transient current at power-on is not more than twice the rated current of the single machine;

[0062] Stand-alone module power supply output: digital 5V output power is not less than 40W;

[0063] The analog 5V output power is not less than 2W, and the analog ±15V output power is not less than 2W;

[0064] Sensor power supply output: 5VS output power is not less than 2.5W; ±15VS output power is not less than 20W;

[0065] The external output is ±15VS and 5VS sensor power supply, and each of the 4 channels is connected in series with a current limiting protection resistor to prevent the power module from failing due to a short circuit of a single sensor.

[0066] Figure 4 A schematic diagram of the structure of a power board system provided by the present invention is shown in FIG. Figure 4 After the input 28V power is processed by the surge protection circuit and power filter, it is used to power other circuit boards of the machine through the N1_40W module (5V), N4_5W module (5V1), and N5_2W module (±15V1), and it is used to power the sensor through the N2_30W module (±15VS) and N2_2.5W (5VS) modules.

[0067] In an optional embodiment, the sensor group includes a displacement sensor, a vibration sensor, a temperature sensor and a stress sensor, and each sensor measures a corresponding physical quantity and converts it into an electrical pressure signal.

[0068] Based on the contents of the above embodiments, as an optional embodiment, the ground wireless measurement system based on telemetry data acquisition provided by the present invention also includes a receiving antenna for receiving the radio frequency signal transmitted by the transmitting antenna; a ground station for receiving the radio frequency signal transmitted by the transmitting antenna, and storing and processing it; a host computer for processing the data transmitted by the ground station, and restoring the received voltage data into physical quantities to obtain measurement data.

[0069] Figure 5FIG. 2 is a second structural diagram of an optional ground wireless measurement system based on telemetry data acquisition provided by an embodiment of the present invention, such as Figure 5 As shown in the figure, the system can be divided into the test workshop end and the test bench end. The test bench end is the end where the main equipment works, including sensors for collecting relevant parameters, integrated measurement units for data framing and generating PCM streams, and portable batteries for powering the integrated measurement units. At the test workshop end are the receiving antennas and ground stations for receiving wireless data, which mainly complete the functions of receiving wireless data and parsing and processing the data. The ground wireless measurement system based on telemetry data acquisition consists of an integrated measurement unit, sensors, transmitting antennas, and supporting cables.

[0070] The receiving antenna is used to receive the radio frequency signal emitted by the transmitting antenna and transmit it to the ground station to ensure signal reception; the ground station is used to receive the radio frequency signal from the receiving antenna and transmit the data to the host computer for subsequent processing; the host computer is used to parse the data from the ground station and restore the received voltage data to physical quantities to obtain real measurement data; the supporting cable is used to connect the integrated measurement unit with the sensor, and the integrated measurement unit with other related components to ensure the transmission of signals and power.

[0071] Figure 6 is a schematic diagram of an optional operation flow of a ground wireless measurement system based on telemetry data acquisition provided by an embodiment of the present invention, such as Figure 6 As shown in the figure, the main working process of the system is as follows: the portable battery supplies 28V voltage to the integrated measurement unit, the integrated measurement unit powers the sensor through the cable network, and collects the voltage of the sensor at the same time. After data framing through the analog acquisition module of the integrated measurement unit, the PCM stream is transmitted to the integrated RF module of the integrated measurement unit for encoding, modulation, up-conversion and other operations, and then the data is transmitted through the transmitting antenna. After that, it is received by the receiving antenna and stored in the ground station, and the data is restored to real data after being processed by the host computer.

[0072] In view of the single application of existing telemetry systems, the present invention expands the use of telemetry systems in ground test situations; in view of the shortcomings of existing test measurement systems, which are cumbersome to set up and easy to cause data distortion, a ground wireless measurement system based on telemetry data acquisition is proposed, which greatly increases the flexibility of the test measurement system and the accuracy of measurement data, and realizes real-time monitoring of key parameters in the ground test process through telemetry technology, improves the flexibility and accuracy of measurement, reduces labor costs and time costs, and improves test efficiency.

[0073] The system embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0074] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ground wireless measurement system based on telemetry data acquisition, the system comprising a sensor group, an integrated measurement unit and a transmitting antenna, characterized in that: The comprehensive measurement unit includes: an analog quantity acquisition module and a comprehensive radio frequency module; The analog quantity acquisition module is used to perform data framing on the multiple groups of physical quantities to be measured acquired by the sensor group, and generate multiple groups of PCM code streams; The integrated radio frequency module is used to receive multiple groups of PCM streams transmitted by the analog quantity acquisition module and then perform frequency modulation telemetry RF output, and cooperate with the transmitting antenna to realize wireless transmission, reception and processing of data; The analog quantity acquisition module includes a multi-channel sensor input interface, a multi-channel gating circuit, a signal conditioning and conversion unit, an FPGA processing unit and an output unit; the multi-channel sensor input interface is used to receive multiple analog signals of different voltage levels and transmit them to the signal conditioning and conversion unit; the multi-channel gating circuit is used to selectively transmit the analog signal to the signal conditioning and conversion unit; the signal conditioning and conversion unit is used to perform analog-to-digital signal conversion on the analog signal to obtain a digital signal and transmit it to the FPGA processing unit; the FPGA processing unit is used to receive and process the digital signal to generate instruction data, and control the gating state of the multi-channel gating circuit, and at the same time interact with the output unit for data; the output unit is used to output the instruction data according to different level standards to achieve data interaction with the integrated RF module.

2. The ground wireless measurement system based on telemetry data acquisition according to claim 1 is characterized in that: The multi-channel sensor input interface includes at least one 5V sensor input.

3. The ground wireless measurement system based on telemetry data acquisition according to claim 1 or 2, characterized in that: The multiplexer circuit includes a plurality of 16-channel gating circuits, which are used to control the transmission of 16-channel sensor signals respectively.

4. The ground wireless measurement system based on telemetry data acquisition according to claim 1 is characterized in that: The signal conditioning and conversion unit includes an operational amplifier circuit and an AD converter connected in sequence; The operational amplifier circuit is used to preliminarily amplify the analog signal; wherein the operational amplifier circuit includes a plurality of independent operational amplifier units, each operational amplifier unit corresponding to one sensor input; The AD converter is used to convert the analog signal amplified by the operational amplifier circuit into a digital signal.

5. The ground wireless measurement system based on telemetry data collection according to claim 4 is characterized in that: The AD converter includes a plurality of AD7066 chips, each of which is responsible for converting output signals of a plurality of operational amplifier units into digital signals.

6. The ground wireless measurement system based on telemetry data collection according to claims 1-5, characterized in that: The output unit includes at least one single-machine synchronous 485 bus, two 5V PCM outputs, and six TTL level outputs.

7. The ground wireless measurement system based on telemetry data collection according to claim 1 is characterized in that: The power management unit comprises an isolation circuit for realizing power isolation.

8. The ground wireless measurement system based on telemetry data collection according to claim 1 is characterized in that: The integrated measurement unit also includes a power supply board for converting a 28V input voltage into a +5V power supply to power the analog quantity acquisition module and the integrated radio frequency module, and providing ±15V and 5V power supplies for the sensor.

9. The ground wireless measurement system based on telemetry data collection according to claims 1-5, characterized in that: The sensor group is used to convert the collected physical quantity to be measured into an electrical pressure signal and send it to the integrated measurement unit. The sensor group includes a displacement sensor, a vibration sensor, a temperature sensor and a stress sensor.

10. The ground wireless measurement system based on telemetry data collection according to claim 1, characterized in that: Also includes: A receiving antenna, used to receive the radio frequency signal transmitted by the transmitting antenna; A ground station is used to receive, store and process radio frequency signals transmitted by the transmitting antenna; The host computer is used to process the data transmitted by the ground station and restore the received voltage data to physical quantities to obtain measurement data.

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