CN207752144U - A kind of radar component test equipment - Google Patents

Abstract

The embodiment of the utility model provides a radar component testing device, which includes a command receiving module, a signal input module, a signal output module, a matrix switch circuit and a signal conditioning and adapting device arranged in an instrument box. Wherein, the instruction receiving module is used to receive the test instruction input by the main control computer; the signal input module is provided with a plurality of test signal input terminals and at least one tested output terminal, and the tested output terminal is used to connect the signal input terminal of the component under test; The signal output module is provided with a plurality of test signal output terminals and at least one tested input terminal, and the tested input terminal is used to connect the signal output terminal of the component under test; the matrix switch circuit and the signal conditioning adaptation device are respectively connected with the signal input module, the signal connected to the output module. Through the switching of the matrix switch circuit, different test signals can be detected by different signal detection devices after passing through the component under test, without manually switching connections, thereby improving test efficiency.

Description

A radar component testing equipment

technical field

The invention relates to the field of radio technology, in particular to a radar component testing device.

Background technique

Radar is a kind of high-precision instrument and equipment, which requires comprehensive and meticulous inspection before it leaves the factory. In order to ensure the normal operation of the main machine, even every component needs to be inspected during its production process. When testing or repairing radar components, technicians need to use a variety of instruments to test and analyze them, such as vector network analyzers, spectrum analyzers, oscilloscopes, power meters, noise analyzers, etc. The parameters and technical indicators of the radar are tested in order to carry out the fault maintenance and diagnosis of the radar components.

In the face of many complex instruments and equipment, each equipment has different input and output ports, and the ports of the corresponding radar components also need to adapt to these different input and output ports. Manual port operation, signal switching, adjustment, etc. Due to the need for a large number of manual operations during the test, the test efficiency is extremely low, which cannot meet the needs of testing radar components quickly and efficiently.

Utility model content

In view of this, the present invention provides a comprehensive testing device for radar components to solve the problem of low test efficiency due to the need for a large number of manual operations when testing radar components.

In order to solve the above problems, the present invention discloses a radar component testing device, which includes a command receiving module, a signal input module, a signal output module, a matrix switch circuit and a signal conditioning and adapting device arranged in the instrument box, wherein:

The instruction receiving module is used to receive the test instruction output by the main control computer;

The signal input module is provided with a plurality of test signal input terminals and at least one tested output terminal, and the plurality of test signal input terminals are used to connect a plurality of different types of signal output devices, and receive input signals from the signal output devices. A test signal; the tested output terminal is used to connect the signal input terminal of the component under test, and output the test signal to the signal input terminal of the component under test according to the test instruction;

The signal output module is provided with a plurality of test signal output terminals and at least one tested input terminal, the tested input terminal is used to connect the signal output terminal of the tested component, and is used to receive the output of the tested component signal; the multiple test signal output terminals are used to connect multiple different types of signal detection equipment, and output the output signal or the test signal to the signal detection equipment;

The matrix switch circuit is respectively connected to the signal input module and the signal output module, and is used to distribute the test signal to the plurality of test signal output terminals according to the test instruction;

The signal conditioning and adapting device is respectively connected with the signal input module and the signal output module, and is used for performing signal conversion on the test signal to obtain an electrical signal matching the test signal output terminal.

Optionally, the instruction receiving module includes a control unit, a GPIB interface unit and a LAN interface unit, wherein:

The control unit is respectively connected with the GPIB interface unit and the LAN interface unit.

Optionally, the control unit includes an STM32 microcontroller and a clock circuit, wherein:

The clock circuit is connected with the STM32 microcontroller;

The STM32 microcontroller is also connected to the GPIB interface circuit, the LAN interface circuit, and the matrix switch circuit respectively.

Optionally, the GPIB interface unit includes a GPIB interface circuit and a TNT4882 chip, wherein:

The GPIB interface circuit is connected with the TNT4882 chip;

The TNT4882 chip is also connected with the main control unit.

Optionally, the LAN interface unit includes a DM9000 chip and a LAN interface circuit, wherein:

The LAN interface circuit is connected to the DM9000 chip;

The DM9000 chip is also connected with the main control unit.

Optionally, the matrix switch circuit includes part or all of one-to-two switches, one-to-three switches, one-to-eight switches and double-pole double-throw switches.

Optionally, the signal conditioning and adaptation device includes a power attenuator and a wave detector.

Optionally, the signal output device includes part or all of the first network analyzer, the signal source and the noise source.

Optionally, the signal detection device includes part or all of a second network analyzer, a spectrum analyzer, a power meter, a noise analyzer and an oscilloscope.

Optionally, the multiple test signal input terminals include extended input terminals;

The plurality of test signal output terminals include extended output terminals.

It can be seen from the above technical solutions that the present invention provides a radar component testing device, which includes a command receiving module, a signal input module, a signal output module, a matrix switch circuit and a signal conditioning and adapting device arranged in an instrument box. Among them, the instruction receiving module is used to receive the test instruction input by the main control computer; the signal input module is provided with multiple test signal input terminals and at least one tested output terminal, and the multiple test signal input terminals are used to connect multiple different types of signals Output device, the output terminal under test is used to connect the signal input terminal of the component under test; the signal output module is provided with multiple test signal output terminals and at least one input terminal under test, and the input terminal under test is used to connect the signal output terminal of the component under test Terminals, a plurality of test signal output terminals are used to connect multiple different types of signal detection equipment; the matrix switch circuit and the signal conditioning adaptation device are respectively connected to the signal input module and the signal output module. Through the switching of the matrix switch circuit, different test signals can be detected by different signal detection devices after passing through the component under test, without manually switching the connection, thereby improving the test efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a structural block diagram of a radar component testing device provided by an embodiment of the present invention;

Fig. 2 is a structural block diagram of an instruction receiving module provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example

Fig. 1 is a structural block diagram of a radar component testing device provided by an embodiment of the present invention.

With reference to shown in Fig. 1, the radar component testing equipment provided by the present embodiment is used for carrying out electrical performance test to the component of radar, as weather radar or military radar, and this equipment specifically comprises instrument box, is provided with instruction receiving module 10, A signal input module 20 , a signal output module 30 , a matrix switch circuit 40 and a signal conditioning and adaptation device 50 .

The above-mentioned instruction receiving module is respectively connected with the signal input module and the signal output module, and the matrix switch circuit is also connected with the signal input module and the signal output module respectively. modules are connected.

When actually testing the radar components, the instruction receiving module is connected to the main control computer through the data bus, and is used to receive the test instruction output by the main control computer, and output the test instruction to the signal input module according to the need or in advance. , signal output module, matrix switch module or signal conditioning adaptation module.

The signal input module is used to receive test signals output by different signal output devices, and the test signals are used to be input to the component under test. To meet the above requirements, the signal input module is provided with a plurality of test signal input terminals 21 and at least one tested signal output terminal 22 . Each test signal input terminal is used to connect a signal output device, and these signal output devices can be vector network analyzers, signal sources, noise sources, etc., or other signal output devices. Therefore, the above test signal input terminals include: The expansion input terminal is used to connect other signal output devices to realize the expansion of its functions. The signal output terminal under test is used for connecting the signal input terminal of the component under test, and is used for outputting the corresponding test signal output by the signal output device to the component under test.

The signal output module is used to receive the output signal output by the component under test after it is input with the corresponding test signal after it is operated or processed according to the test signal, and output the output signal to the corresponding signal detection device. Therefore, the The signal output module is provided with at least one tested signal input terminal 31 and multiple test signal output terminals 32 . The tested signal input terminal is used to connect the signal output terminal of the component under test to receive the output signal; multiple test signal output terminals are respectively connected to corresponding signal detection equipment, such as vector network analyzer, spectrum analyzer, power meter, noise analyzer or oscilloscope, and other detection equipment can also be connected, therefore, the multiple test signal output terminals include expansion output terminals, so that actual users can expand functions according to actual needs.

The matrix switch circuit is used to output the test signal received by the signal input module to the signal output module according to the test instruction received by the instruction receiving module, and distribute the test signal among the multiple test signal output terminals of the signal output module, so that A corresponding signal detection device detects the test signal.

Wherein, the matrix switch circuit includes a number of one-to-two switches, one-to-three switches, one-to-eight switches and double-pole double-throw switches.

The signal adaptation and conditioning device is used for signal conversion when the test signal is output to the corresponding test signal output terminal, so that the level or format of the signal received by the corresponding signal detection device matches its own characteristics. The device includes a power attenuator and a detector.

It can be seen from the above technical solution that this embodiment provides a radar component testing device, which includes a command receiving module, a signal input module, a signal output module, a matrix switch circuit and a signal conditioning and adapting device arranged in the instrument box . Among them, the instruction receiving module is used to receive the test instruction input by the main control computer; the signal input module is provided with multiple test signal input terminals and at least one tested output terminal, and the multiple test signal input terminals are used to connect multiple different types of signals Output device, the output terminal under test is used to connect the signal input terminal of the component under test; the signal output module is provided with multiple test signal output terminals and at least one input terminal under test, and the input terminal under test is used to connect the signal output terminal of the component under test Terminals, a plurality of test signal output terminals are used to connect multiple different types of signal detection equipment; the matrix switch circuit and the signal conditioning adaptation device are respectively connected to the signal input module and the signal output module. Through the switching of the matrix switch circuit, different test signals can be detected by different signal detection devices after passing through the component under test, without manually switching the connection, thereby improving the test efficiency.

In a specific implementation of this embodiment, the command receiving module includes a control unit 11, a GPIB interface unit 12 and a LAN interface unit 13, as shown in FIG. 2 . Wherein, the main control unit is respectively connected with the GPIB interface unit and the LAN interface unit, and is used for specific work on the GPIB interface unit and the LAN interface unit.

The main control unit includes an STM32 microcontroller and a clock circuit, and the clock circuit is connected with the STM32 microcontroller for sending clock signals to it; the STM32 microcontroller is also connected with the matrix switch circuit.

The GPIB interface unit includes a GPIB interface circuit and a TNT4882 chip connected together, and the TNT4882 chip is connected to the STM32 microcontroller of the main control unit; the LAN interface unit includes a LAN interface circuit and a DM9000 chip connected together, wherein the DM9000 chip It is also connected to the STM32 microcontroller of the main control unit.

In practical applications, for example, the component under test in Figure 1 is the 3A5 pulse former in the weather radar transmitting subsystem. First, the signal source passes through the signal input module 3A5 pulse former, and the output signal of the former passes through the signal output module to the spectrum analyzer. , the spectrum analyzer will send the test results to the main control computer. When the spectrum analysis test is over, the main control computer will output the signal through the signal output module and then switch to the power meter and oscilloscope in turn. This system can test the 3A5 pulse former respectively. The size of the output power and the output detection envelope information, the above three parameters (spectrum, power, envelope) are all completed through the automatic test of the signal center. After data analysis and data processing, the main control computer can judge whether the tested component is qualified or faulty.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, devices, or computer program products. Accordingly, embodiments of the invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowcharts and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor or processor of other programmable data processing terminal equipment to produce a machine such that instructions executed by the computer or processor of other programmable data processing terminal equipment Produce means for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the The instruction means implements the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded into a computer or other programmable data processing terminal equipment, so that a series of operational steps are performed on the computer or other programmable terminal equipment to produce computer-implemented processing, thereby The instructions executed above provide steps for implementing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

Having described preferred embodiments of embodiments of the present invention, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be construed to cover the preferred embodiment and all changes and modifications which fall within the scope of the embodiments of the present invention.

Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or terminal equipment comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements identified, or also include elements inherent in such a process, method, article, or end-equipment. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.

The technical solution provided by the present invention has been introduced in detail above, and the principles and implementation methods of the present invention have been explained by using specific examples in this paper. The description of the above embodiments is only used to help understand the method and core idea of the present invention; At the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as limiting the present invention.

Claims (10)

1. a kind of radar component test equipment, which is characterized in that defeated including the command reception module that is arranged in instrument box, signal Enter module, signal output module, switch matrix circuit and signal condition adaptive device, wherein：

Described instruction receiving module is used to receive the test instruction of main control computer output；

The signal input module is provided with multiple test signal input terminals and at least one tested output end, the multiple test Signal input part is used to connect the signal output apparatus of multiple and different types, and receives the test of the signal output apparatus input Signal；The tested output end is used to connect the signal input part of MUT module under test, and is instructed test signal according to the test It is output to the signal input part of the MUT module under test；

The signal output module is provided with multiple test signal output ends and at least one tested input terminal, the tested input Hold the signal output end for connecting the MUT module under test, the output signal for receiving the MUT module under test；The multiple survey Trial signal output end is used to connect the signal detection apparatus of multiple and different types, and by the output signal or the test signal It is output to the signal detection apparatus；

The switch matrix circuit is connected with the signal input module, the signal output module respectively, for according to institute Test instruction is stated to be distributed the test signal to the multiple test signal output end；

The signal condition adaptive device is connected with the signal input module, the signal output module respectively, and being used for will The test signal carries out signal conversion, obtains the electric signal to match with the test signal output end.

2. radar component test equipment as described in claim 1, which is characterized in that described instruction receiving module includes that control is single Member, gpib interface unit and LAN interface unit, wherein：

Described control unit is connected with the gpib interface unit, the LAN interface unit respectively.

3. radar component test equipment as claimed in claim 2, which is characterized in that described control unit includes STM32 micro-controls Device and clock circuit processed, wherein：

The clock circuit is connected with the STM32 microcontrollers；

The STM32 microcontrollers are also electric with the gpib interface circuit, the LAN interface circuit, the matrix switch respectively Road is connected.

4. radar component test equipment as claimed in claim 2, which is characterized in that the gpib interface unit includes that GPIB connects Mouth circuit and TNT4882 chips, wherein：

The gpib interface circuit is connected with the TNT4882 chips；

The TNT4882 chips are also connected with the main control unit.

5. radar component test equipment as claimed in claim 2, which is characterized in that the LAN interface unit includes DM9000 Chip and LAN interface circuit, wherein：

The LAN interface circuit is connected with the DM9000 chips；

The DM9000 chips are also connected with the main control unit.

6. radar component test equipment as described in claim 1, which is characterized in that the switch matrix circuit includes one-to-two Some or all of in switch, three switch of portion, one point of eight switch and double-point double-throw switch.

7. radar component test equipment as described in claim 1, which is characterized in that the signal condition adaptive device includes work( Rate attenuator and wave detector.

8. radar component test equipment as described in claim 1, which is characterized in that the signal output apparatus includes the first net Some or all of in network analyzer, signal source and noise source.

9. radar component test equipment as described in claim 1, which is characterized in that the signal detection apparatus includes the second net Some or all of in network analyzer, spectrum analyzer, power meter, noise analyzer and oscillograph.

10. radar component test equipment as described in claim 1, which is characterized in that in the multiple test signal input terminal It include extension input terminal；

The multiple test signal output end includes extension output end.