CN115459860A - Automatic test system and test method for mixed signal processing module - Google Patents

Automatic test system and test method for mixed signal processing module Download PDF

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Publication number
CN115459860A
CN115459860A CN202210881952.3A CN202210881952A CN115459860A CN 115459860 A CN115459860 A CN 115459860A CN 202210881952 A CN202210881952 A CN 202210881952A CN 115459860 A CN115459860 A CN 115459860A
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signal processing
test
mixed signal
power supply
processing modules
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Inventor
李仪
文昊飞
王兆麒
罗文姣
刘明
祝佳芳
汪子琦
何正宣
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CETC 29 Research Institute
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CETC 29 Research Institute
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/0082Monitoring; Testing using service channels; using auxiliary channels
    • H04B17/0085Monitoring; Testing using service channels; using auxiliary channels using test signal generators
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/40Testing power supplies
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00Electric signal transmission systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

The invention discloses an automatic test system and a test method for mixed signal processing modules, wherein the system comprises a test control assembly, a power supply branch, a signal branch and an interaction branch, wherein the power supply branch, the signal branch and the interaction branch are respectively connected with the test control assembly and are respectively connected to each mixed signal processing module, so that the automatic test of each mixed signal processing module is realized. According to the invention, manual work of replacing power supply lines, radio frequency cables and serial connection lines among a plurality of radio frequency/digital mixed signal processing modules is replaced by an automatic means, batch testing of the radio frequency/digital mixed signal processing modules is promoted from semi-automatic testing to full-automatic testing, and from serial testing to parallel testing, so that the manual operation amount of testers is reduced, and the efficiency and quality of the testing process are improved.

Description

Automatic test system and test method for mixed signal processing module
Technical Field
The invention relates to the technical field of automatic testing, in particular to an automatic testing system and a testing method for a mixed signal processing module.
Background
With the continuous development of electromagnetic equipment in China, the radio frequency/digital mixed signal processing module is used as a core unit of the radio frequency/digital mixed signal processing module, and the demand is increased day by day.
The existing testing method of the radio frequency/digital mixed signal processing module basically depends on semi-automatic testing, can realize single piece automatic testing on part of the radio frequency/digital mixed signal processing module, but does not support full-automatic parallel testing on a plurality of radio frequency/digital mixed signal processing modules. In the testing process, testing personnel need to frequently and manually change wires and operate a computer and an instrument, the efficiency is low, and manual operation errors are easily introduced.
Disclosure of Invention
The invention mainly aims to provide an automatic test system and a test method for a mixed signal processing module, aiming at solving the technical problems that the test system capable of realizing batch full-automatic test of a plurality of radio frequency/digital mixed signal processing modules is lacked at present, the batch production efficiency of the radio frequency/digital mixed signal processing modules is low and manual operation errors are easily introduced.
In order to achieve the above object, the present invention provides an automatic test system for a mixed signal processing module, which comprises a test control component, a power supply branch, a signal branch and an interaction branch; wherein:
the power supply branch is connected with the test control assembly and the plurality of mixed signal processing modules, and is used for receiving a power supply control instruction of the test control assembly and sending power supply signals to the plurality of mixed signal processing modules;
the signal branch is connected with the test control assembly and the plurality of mixed signal processing modules, and is used for receiving a signal source control instruction of the test control assembly and sending radio frequency excitation signals to the plurality of mixed signal processing modules;
the interaction branch is connected with the test control assembly and the plurality of mixed signal processing modules and used for serial port data interaction between the test control assembly and the plurality of mixed signal processing modules.
Optionally, the test control component includes a main control computer and an ethernet card circuit, the main control computer sends an interaction instruction to the ethernet card circuit, and the ethernet card circuit is configured to send a power control instruction to the power supply branch, send a signal source control instruction to the signal branch, send a test command to the interaction branch, and read a test result according to the interaction instruction.
Optionally, the power supply branch includes a dc voltage-stabilized power supply and a plurality of power supply cables, the dc voltage-stabilized power supply sends a power supply signal to the plurality of power supply cables according to the received power control command, and the plurality of power supply cables provide a test power supply signal to the plurality of mixed signal processing modules according to the power supply signal.
Optionally, the master control computer sets voltage and current limiting of each channel of the dc voltage-stabilized power supply through the ethernet card circuit before testing, and controls power supply switches of each channel of the dc voltage-stabilized power supply or monitors voltage and current of each channel of the dc voltage-stabilized power supply as required during testing.
Optionally, the signal branch includes a signal source and a power divider, where the signal source sends a radio frequency excitation signal to the power divider according to the received signal source control instruction, and the power divider divides the radio frequency excitation signal into multiple paths of radio frequency excitation signals and sends the multiple paths of radio frequency excitation signals to the multiple mixed signal processing modules respectively.
Optionally, the master control computer controls the output frequency, power, pulse parameter and radio frequency switch of the signal source through the ethernet card circuit during testing.
Optionally, the interactive branch employs a multi-serial card, and the multi-serial card is connected to the ethernet card circuit and the plurality of mixed signal processing modules, and is configured to transmit the test command to the plurality of mixed signal processing modules and transmit the test result to the ethernet card circuit, respectively.
Optionally, the main control computer sets the baud rate, the data bit, the stop bit and the check bit of each serial port of the multiple serial port cards through the ethernet card circuit before testing, and the main control computer performs read-write control on the multiple serial port cards simultaneously by using a multithreading technology during testing, and the method includes writing a test instruction to the radio frequency/digital mixed signal processing module through the serial ports and reading a signal processing message reported by the radio frequency/digital mixed signal processing module through the serial ports and analyzing and storing the signal processing message.
Optionally, the mixed signal processing module includes a radio frequency signal processing module and a digital signal processing module.
In addition, in order to achieve the above object, the present invention also provides an automatic test method for a mixed signal processing module, which is used in the automatic test system for a mixed signal processing module as described above, and the method includes the following steps:
step 1: starting the test;
and 2, step: the test control assembly is configured with a direct-current stabilized power supply, sets the voltage and the current limit of each channel of the direct-current stabilized power supply, and opens the power supply switch of each channel according to a specified time sequence to supply power for the plurality of mixed signal processing modules;
and 3, step 3: the test control assembly is configured with a plurality of serial port cards, determines serial port numbers of the tested modules according to the wiring relation between the plurality of serial port cards and the plurality of mixed signal processing modules, and sets baud rates, data bits, stop bits and check bits of the serial ports;
and 4, step 4: the test control component configures a signal source, sets the signal source according to a first group of signal source parameters to be tested, the set parameters comprise frequency, power and pulse parameters, and opens a radio frequency switch to provide radio frequency excitation for the plurality of mixed signal processing modules;
and 5: the test control component simultaneously sends test commands to the plurality of mixed signal processing modules through a multithreading technology, and controls the plurality of mixed signal processing modules to start analyzing and processing the radio frequency signals and sending messages;
and 6: the test control component reads the reported messages of a plurality of mixed signal processing modules simultaneously through the multithreading technology, analyzes the test result and stores the test result;
and 7: when the plurality of mixed signal processing modules finish analyzing and storing the test results of the parameters of the signal source to be tested, the test control component controls the signal source to be switched to the next set of parameters of the signal source to be tested, and the steps 4 to 6 are repeated until all the parameters of the signal source to be tested finish testing;
and 8: this concludes the test.
The system comprises a test control assembly, a power supply branch, a signal branch and an interaction branch, wherein the power supply branch, the signal branch and the interaction branch are respectively connected with the test control assembly and are respectively connected to each mixed signal processing module, so that the automatic test of each mixed signal processing module is realized. According to the invention, manual work for replacing power supply lines, radio frequency cables and serial port connecting lines among a plurality of radio frequency/digital mixed signal processing modules is replaced by an automatic means, batch testing of the radio frequency/digital mixed signal processing modules is promoted from semi-automatic testing to full-automatic testing, and from serial testing to parallel testing, so that the manual operation amount of testers is reduced, and the efficiency and quality of the testing process are improved.
Drawings
FIG. 1 is a schematic structural diagram of an automatic test system for a mixed signal processing module according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating an automatic testing method of a mixed signal processing module according to an embodiment of the present invention.
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
At present, in the related technical field, a testing system capable of realizing batch full-automatic testing of a plurality of radio frequency/digital mixed signal processing modules is lacked, and the technical problems that the batch production efficiency of the radio frequency/digital mixed signal processing modules is low and manual operation errors are easily introduced are solved.
To solve this problem, various embodiments of the automatic test system and test method for a mixed signal processing module of the present invention are proposed. The automatic test system and the test method of the mixed signal processing module provided by the invention replace the work of manually replacing a power supply line, a radio frequency cable and a serial port connecting line among a plurality of radio frequency/digital mixed signal processing modules by an automatic means, the batch test of the radio frequency/digital mixed signal processing modules is promoted from semi-automatic to full-automatic, and the serial test is promoted to parallel test, thereby reducing the manual operation amount of testers and improving the efficiency and the quality of the test process.
An embodiment of the present invention provides an automatic test system for a mixed signal processing module, and referring to fig. 1, fig. 1 is a schematic structural diagram of the automatic test system for a mixed signal processing module according to the present invention.
In this embodiment, the automatic test system for the mixed signal processing module includes a main control computer, a dc voltage-stabilized power supply, a signal source, a power divider, a multi-serial interface card, a multi-path power supply cable, and an ethernet card circuit. The main control computer is connected with a direct current stabilized power supply, a signal source and a plurality of serial port cards through an Ethernet card circuit, the direct current stabilized power supply is connected with a power supply interface of a tested piece through a multi-path power supply cable, the signal source is connected with a radio frequency interface of the tested piece through a power divider, and the plurality of serial port cards are connected with a digital interface of the tested piece.
The working principle of the test system is as follows: the main control computer controls the direct current stabilized voltage power supply through the Ethernet card circuit, the direct current stabilized voltage power supply supplies power to the tested piece through a multi-path power supply cable, the main control computer controls the signal source through the Ethernet card circuit, the signal source provides radio frequency excitation for the tested piece through the power divider, the main control computer controls the multi-serial-port card through the Ethernet card, the main control computer sends a test command to the tested piece and reads a test result, a plurality of serial ports can be opened during testing, and a plurality of radio frequency/digital mixed signal processing modules are tested simultaneously.
And the master control computer controls the direct current stabilized voltage power supply through the Ethernet card circuit.
In a preferred embodiment, the main control computer sets the voltage and the current limit of each channel of the direct current stabilized power supply through the Ethernet card circuit before the test, and controls the power supply switch of each channel of the direct current stabilized power supply or monitors the voltage and the current of each channel of the direct current stabilized power supply according to the requirement in the test.
And the direct current stabilized voltage power supply supplies power to the tested part through a multi-path power supply cable.
In a preferred embodiment, the dc regulated power supply supplies power to the plurality of rf/digital mixed signal processing modules simultaneously through a plurality of power supply cables, an input end of the plurality of power supply cables is connected to a power output end of the dc regulated power supply, and an output end harness of the plurality of power supply cables is connected to power supply interfaces of the plurality of rf/digital mixed signal processing modules after a time division and a multiple processing.
And the master control computer controls the signal source through the Ethernet card circuit.
In a preferred embodiment, the master control computer controls the output frequency, power, pulse parameters and the radio frequency switch of the signal source through the Ethernet card circuit during testing.
And the signal source provides radio frequency excitation for the tested piece through the power divider.
In a preferred embodiment, the input end of the power divider is connected to the rf output end of the signal source, and the output ends of the power divider are respectively connected to the rf input ports of the rf/digital mixed signal processing modules, so as to provide rf excitation for the rf/digital mixed signal processing modules at the same time.
The master control computer controls the multi-serial port card through the Ethernet card.
In a preferred embodiment, the master control computer sets the baud rate, the data bit, the stop bit and the check bit of each serial port of the multi-serial-port card through an ethernet card circuit before testing, and the master control computer simultaneously performs read-write control on the multi-serial-port card by using a multithreading technology during testing, wherein the read-write control includes writing a test instruction to the radio frequency/digital mixed signal processing module through the serial port and reading a signal processing message reported by the radio frequency/digital mixed signal processing module through the serial port and analyzing and storing the signal processing message.
For a more clear explanation of the present application, specific examples of the present application are provided below:
as shown in fig. 1, the testing system for realizing full-automatic testing of multiple rf/digital mixed signal processing modules according to the present invention can perform full-automatic testing on 3 rf/digital mixed signal processing modules in each batch, and the number of parallel tests of each batch of modules can be expanded according to actual requirements. The test system comprises: the system comprises 1 master control computer, 1 group of Ethernet card circuits, 1 direct current stabilized power supply, 1 signal source, 1 multi-serial-port card, 1 group of multi-path power supply cables, 1 power divider with 1 divider and 3 power dividers and a plurality of connecting wires.
The main control computer is a conventional desktop computer, the direct-current stabilized power supply selects an N6701A power supply of Agilent company, the main control computer is physically connected with the direct-current stabilized power supply through an Ethernet card, and sends a power supply control instruction meeting SCPI syntax to the direct-current stabilized power supply through a VISA bus. The direct current stabilized voltage power supply is connected with a power supply interface of the 3 radio frequency/digital mixed signal processing modules through a multi-path power supply cable, and provides power supply signals for the 3 radio frequency/digital mixed signal processing modules to be tested during testing.
The signal source selects an MG3692C signal generator of Anritsu company, the main control computer is physically connected with the signal source through an Ethernet card, and a signal source control instruction meeting SCPI grammar is sent to the signal source through a VISA bus. The signal source is connected with the radio frequency interfaces of the 3 radio frequency/digital mixed signal processing modules through the 1-to-3 power divider, and provides radio frequency excitation for the 3 radio frequency/digital mixed signal processing modules to be tested during testing.
The multi-serial port card selects NPORT5630-16 multi-serial port cards of MOXA company, the main control computer is physically connected with the multi-serial port cards through an Ethernet card, and parameter setting and read-write control of each serial port of the multi-serial port cards are realized through SerialPort classes of a Net frame Syetem. The multi-serial port card is connected with the digital interface of the 3 radio frequency/digital mixed signal processing modules through the serial port cable, serial port data interaction is carried out between the tested module and the master control computer through the multi-serial port card, and the interactive content comprises a test instruction sent to the tested module by the master control computer and a message which is reported to the master control computer by the tested module and can be used for resolving a test result.
The work flow of the test system is shown in fig. 2:
step 1: starting the test;
step 2: the main control computer configures a direct current stabilized power supply through an Ethernet card circuit, sets the voltage and the current limit of each channel of the direct current stabilized power supply, and opens a power supply switch of each channel according to a specified time sequence to supply power for 3 radio frequency/digital mixed signal processing modules;
and step 3: the main control computer configures a plurality of serial port cards through an Ethernet card circuit, determines the serial port number of the tested module according to the wiring relation between the plurality of serial port cards and 3 radio frequency/digital mixed signal processing modules, and sets the baud rate, the data bit, the stop bit and the check bit of each serial port;
and 4, step 4: the main control computer configures a signal source through an Ethernet card circuit, sets the signal source according to a first group of signal source parameters to be detected, the set parameters comprise frequency, power and pulse parameters, and opens a radio frequency switch to provide radio frequency excitation for 3 pieces of radio frequency/digital mixed signal processing modules;
and 5: the main control computer simultaneously sends a test command to the 3 radio frequency/digital mixed signal processing modules through a multi-thread technology, and controls the 3 radio frequency/digital mixed signal processing modules to start analyzing and processing radio frequency signals and sending messages;
step 6: the main control computer reads the report messages of 3 pieces of radio frequency/digital mixed signal processing modules simultaneously through a multi-thread technology, analyzes the test results and stores the test results;
and 7: when the 3 radio frequency/digital mixed signal processing modules finish analyzing and storing the test results of the parameters of the signal source to be tested, the master control computer controls the signal source to be switched to the next set of parameters of the signal source to be tested, and the steps 4 to 6 are repeated until all the parameters of the signal source to be tested finish testing;
and 8: this concludes the test.
The result shows that the automatic test system can automatically complete the batch full-automatic test of 3 radio frequency/digital mixed signal processing modules.
The above are only preferred embodiments of the invention, and are not intended to limit the scope of the invention, and all equivalent structures or equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the invention.

Claims (10)

1. An automatic test system of a mixed signal processing module is characterized by comprising a test control component, a power supply branch, a signal branch and an interaction branch; wherein:
the power supply branch is connected with the test control assembly and the plurality of mixed signal processing modules, and is used for receiving a power supply control instruction of the test control assembly and sending power supply signals to the plurality of mixed signal processing modules;
the signal branch is connected with the test control assembly and the plurality of mixed signal processing modules, and is used for receiving a signal source control instruction of the test control assembly and sending radio frequency excitation signals to the plurality of mixed signal processing modules;
the interaction branch is connected with the test control assembly and the plurality of mixed signal processing modules and used for serial port data interaction between the test control assembly and the plurality of mixed signal processing modules.
2. The automatic test system of claim 1, wherein the test control component comprises a main control computer and an ethernet card circuit, the main control computer sends an interaction instruction to the ethernet card circuit, and the ethernet card circuit is configured to send a power control instruction to the power supply branch, send a signal source control instruction to the signal branch, and send a test command to the interaction branch and read a test result, respectively, according to the interaction instruction.
3. The automatic test system for mixed signal processing modules according to claim 2, wherein the power supply branch comprises a dc regulated power supply and a plurality of power supply cables, the dc regulated power supply sends a power supply signal to the plurality of power supply cables according to the received power supply control command, and the plurality of power supply cables provide a test power supply signal to the plurality of mixed signal processing modules according to the power supply signal.
4. The automatic test system of claim 3, wherein the main control computer sets the voltage and current limit of each channel of the DC voltage regulator through the Ethernet card circuit before the test, and controls the power supply switch of each channel of the DC voltage regulator or monitors the voltage and current of each channel of the DC voltage regulator as required during the test.
5. The automatic test system for mixed signal processing modules according to claim 2, wherein the signal branch comprises a signal source and a power divider, the signal source sends a radio frequency excitation signal to the power divider according to the received signal source control command, and the power divider divides the radio frequency excitation signal into a plurality of channels of radio frequency excitation signals and sends the radio frequency excitation signals to the plurality of mixed signal processing modules respectively.
6. The automatic test system of claim 5, wherein the main control computer controls the output frequency, power, pulse parameters and RF switch of the signal source through the Ethernet card circuit during testing.
7. The system according to claim 2, wherein the interactive branch employs a multi-serial card, and the multi-serial card connects the ethernet card circuit and the plurality of mixed signal processing modules, and is configured to transmit the test command to the plurality of mixed signal processing modules and transmit the test result to the ethernet card circuit, respectively.
8. The system according to claim 7, wherein the main control computer sets the baud rate, data bit, stop bit, and check bit of each serial port of the multi-serial port card through the ethernet card circuit before testing, and the main control computer simultaneously performs read/write control on the multi-serial port card during testing by using a multithreading technique, including writing test instructions to the rf/digital mixed signal processing module through the serial port and reading the signal processing messages reported by the rf/digital mixed signal processing module through the serial port and parsing and storing the messages.
9. The automated test system of a hybrid signal processing module of any of claims 1-8, wherein the hybrid signal processing module comprises a radio frequency signal processing module and a digital signal processing module.
10. A mixed signal processing module automatic test method for the mixed signal processing module automatic test system according to any one of claims 1 to 9, characterized by comprising the steps of:
step 1: starting the test;
and 2, step: the test control assembly is provided with a direct-current stabilized power supply, the voltage and the current limit of each channel of the direct-current stabilized power supply are set, and the power supply switches of the channels are opened according to a specified time sequence to supply power to the plurality of mixed signal processing modules;
and step 3: the test control assembly is configured with a plurality of serial port cards, determines serial port numbers of the tested modules according to the wiring relation between the plurality of serial port cards and the plurality of mixed signal processing modules, and sets baud rates, data bits, stop bits and check bits of the serial ports;
and 4, step 4: the test control assembly configures a signal source, sets the signal source according to a first group of signal source parameters to be tested, the set parameters comprise frequency, power and pulse parameters, and turns on a radio frequency switch to provide radio frequency excitation for a plurality of mixed signal processing modules;
and 5: the test control component simultaneously sends test commands to the plurality of mixed signal processing modules through a multithreading technology, and controls the plurality of mixed signal processing modules to start analyzing and processing the radio frequency signals and sending messages;
step 6: the test control component reads the reported messages of a plurality of mixed signal processing modules simultaneously through the multithreading technology, analyzes the test result and stores the test result;
and 7: when the plurality of mixed signal processing modules finish analyzing and storing the test results of the parameters of the signal source to be tested, the test control component controls the signal source to be switched to the next set of parameters of the signal source to be tested, and the steps 4 to 6 are repeated until all the parameters of the signal source to be tested finish testing;
and 8: this concludes the test.
CN202210881952.3A 2022-07-25 2022-07-25 Automatic test system and test method for mixed signal processing module Pending CN115459860A (en)

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