Radio frequency circuit fault diagnosis platform based on IQ data storage

Abstract

The utility model relates to the technical field of radio frequency circuit fault diagnosis, in particular to a radio frequency circuit fault diagnosis platform based on IQ data storage, which comprises a cabinet. The main control computer is arranged on the cabinet, the switch is connected with the main control computer, and the signal acquisition equipment, the IQ data recording equipment and the vector signal reconstruction equipment are connected with the switch. The radio frequency circuit fault diagnosis platform based on IQ data storage provided by the utility model can be used for various processing functions of radio frequency signals with the frequency of 200Hz-9GHz, and has relatively high practical value and popularization prospect; a program control function is provided, and automation of radio frequency circuit fault diagnosis can be realized; the market demand vacancy can be filled, and considerable economic value is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of radio frequency circuit fault diagnosis, in particular to a radio frequency circuit fault diagnosis platform based on IQ data storage. Background Art

[0002] At present, some RF circuit fault diagnosis equipment has a single function, and the technology generally adopts the measurement of RF signals, but does not have the following six functions at the same time: 1. RF signal acquisition and storage function; 2. RF signal reconstruction and playback function; 3. Dual-channel spectrum measurement and graphical display function; 4. RF signal comparison and analysis, graphical display function; 5. Instrument self-test function, instrument control function, automatic test control function, single-step test function, test report generation function, instrument calibration function; 6. It is impossible to use comprehensive digital RF storage technology to realize the function of RF circuit fault diagnosis. Utility Model Content

[0003] In order to solve the above technical problems, the utility model proposes a radio frequency circuit fault diagnosis platform based on IQ data storage.

[0004] The technical problem to be solved by the utility model is achieved by the following technical solutions:

[0005] A radio frequency circuit fault diagnosis platform based on IQ data storage comprises a cabinet, a main control computer arranged on the cabinet, a switch connected to the main control computer, a signal acquisition device connected to the switch, an IQ data recording device, and a vector signal reconstruction device.

[0006] Preferably, a display is also provided on the cabinet.

[0007] Preferably, the signal acquisition device has a collection signal frequency range of 3 Hz to 13.6 GHz.

[0008] Preferably, the IQ data recording device uses a matrix hard disk with a storage capacity of 12 GB.

[0009] Preferably, the fault diagnosis platform collects signals in a frequency range of 200 Hz to 12 GHz.

[0010] The beneficial effects of the utility model are:

[0011] The utility model provides a radio frequency circuit fault diagnosis platform based on IQ data storage, which can be used for various processing functions of radio frequency signals with a frequency of 200Hz-9GHz, has high practical value and promotion prospects; has a program control function, can realize the automation of radio frequency circuit fault diagnosis; can fill the gap in market demand, and has considerable economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0013] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0014] Figure 2 It is a structural block diagram of the utility model.

[0015] In the figure: 1. Display; 2. Signal acquisition equipment; 3. IQ data recording equipment; 4. Vector signal reconstruction equipment; 5. Switch; 6. Main control computer. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] like Figure 1 As shown, a radio frequency circuit fault diagnosis platform based on IQ data storage includes a cabinet, a display 1, a signal acquisition device 2, an IQ data recording device 3, a vector signal reconstruction device 4, a switch 5, and a main control computer 6. In addition, the fault diagnosis platform also includes a radio frequency probe. The fault diagnosis platform as a whole adopts LAN bus communication.

[0018] The fault diagnosis platform includes a standard rack-mounted 4U (1U = 44.45 mm) high signal acquisition device 2, a 4U high vector signal reconstruction device 4, a 2U high IQ data recording device 3, a 1U high standard KVM keyboard display integrated machine, a 2U high main control computer 6, a total height of 13U, and a built-in 1U high switch 5 and a 1U high PDU power distribution unit. The system is integrated in the form of a customized 15U miniaturized cabinet.

[0019] The frequency range of the signal collected by the RF circuit fault diagnosis platform based on IQ data storage is 200Hz~12GHz, which is a wide frequency range.

[0020] The model of the signal acquisition device 2 is 4052C, with a frequency range of 3Hz to 13.6GHz; sensitivity: -160dBm / Hz; phase noise: -120dBc / Hz@10kHz (1GHz carrier frequency); signal analysis bandwidth: 40MHz; and has functions such as spectrum analysis, analog / digital modulation signal demodulation analysis, and pulse signal analysis.

[0021] The IQ data recording device 3 uses a matrix hard disk, model 4713A, with a storage capacity of 12GB; the recording and playback signal bandwidth is: maximum 40MHz.

[0022] The model of the vector signal reconstruction device 4 is 1465C-V, with a frequency range of 100kHz to 10GHz; a maximum output power of +20dBm; an internal modulation bandwidth of 120MHz; and has amplitude / frequency / phase / pulse modulation functions and a broadband vector modulation function.

[0023] The model of switch 5 is TL-SG1008D, which provides seamless connection for 10Mbps, 100Mbps and 1000Mbps Ethernet, and each port can provide a maximum transmission rate of 2000Mbps.

[0024] The model of the main control computer 6 is IPC-510H, chassis: IPC-510, motherboard: AIMB-785G2, CPU: I7-6700, memory: 16G, hard disk: 1T mechanical hard disk; keyboard and mouse: USB; operating system: WIN7 genuine.

[0025] When in use, the fault diagnosis platform collects radio frequency signals through radio frequency probes, and the radio frequency signals are input to the signal acquisition device 2. The signal acquisition device 2 uses IQ data storage technology to down-convert the radio frequency signals to generate low-frequency signals, and then outputs the low-frequency signals to the IQ data recording device 3. The information of the low-frequency signals is stored in the IQ data recording device 3. When reconstructing the radio frequency signals, the vector signal reconstruction device 4 reads the information of the low-frequency signals in the IQ data recording device 3, and converts the low-frequency signals into radio frequency signals for output by up-conversion. The output signal is displayed by the display 1.

[0026] The RF circuit fault diagnosis platform based on IQ data storage uses high-performance microwave instruments as the RF transceiver front end. The entire RF transceiver system has a large dynamic range, low distortion, high sensitivity, and the RF performance indicators have reached the instrument level.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A radio frequency circuit fault diagnosis platform based on IQ data storage, comprising a cabinet, characterized in that: It also includes a main control computer (6) arranged on the cabinet, a switch (5) connected to the main control computer (6), a signal acquisition device (2) connected to the switch (5), an IQ data recording device (3), and a vector signal reconstruction device (4).

2. The RF circuit fault diagnosis platform based on IQ data storage according to claim 1, characterized in that: The cabinet is also provided with a display (1).

3. The RF circuit fault diagnosis platform based on IQ data storage according to claim 1, characterized in that: The signal acquisition device (2) has a collection signal frequency range of 3 Hz to 13.6 GHz.

4. The RF circuit fault diagnosis platform based on IQ data storage according to claim 1, characterized in that: The IQ data recording device (3) adopts a matrix hard disk with a storage capacity of 12 GB.

5. The RF circuit fault diagnosis platform based on IQ data storage according to claim 1, characterized in that: The fault diagnosis platform collects signals in the frequency range of 200Hz to 12GHz.

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