CN115622619A - Testing device for photoelectric converter - Google Patents
Testing device for photoelectric converter Download PDFInfo
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- CN115622619A CN115622619A CN202211226802.5A CN202211226802A CN115622619A CN 115622619 A CN115622619 A CN 115622619A CN 202211226802 A CN202211226802 A CN 202211226802A CN 115622619 A CN115622619 A CN 115622619A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
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Abstract
The invention discloses a testing device of a photoelectric converter, which comprises: the upper computer is used for acquiring the type information of the photoelectric converter to be tested, configuring the test parameters of the communication data module based on the type information and generating a target test instruction; the communication data module is used for receiving a target test instruction sent by the upper computer, sending a target test signal to the photoelectric converter to be tested based on the target test instruction, and receiving a target feedback signal sent by the photoelectric converter after the photoelectric conversion processing is carried out on the target test signal; and analyzing and processing the target feedback signal to obtain a test result. The invention realizes the functions of high-speed data transmission, data analysis and the like through the communication data module comprising the FPGA unit, and simultaneously adopts optical testing equipment such as an optical power meter, an optical attenuator and the like to realize the automatic testing of different types of photoelectric converters, thereby reducing the testing error rate and improving the testing efficiency and stability of the photoelectric converters.
Description
Technical Field
The invention belongs to the technical field of testing of photoelectric converters, and particularly relates to a testing device of a photoelectric converter.
Background
Photoelectric converters are widely used in many fields as a device for converting an electric signal and an optical signal to each other. For example, the photoelectric converter is a core component for realizing the communication function of a safety level instrument control system of a nuclear power plant. At present, when testing a photoelectric converter, a manual testing mode is usually adopted, and a tester manually adjusts light source testing equipment such as an optical power meter and an optical attenuator to test the photoelectric converter to be tested according to a testing rule.
However, when testing the reliability of nuclear power products, the test quantity is huge, the test modes are various, the test points are complicated, and the modes of manually executing test operations and recording test data have the problems of low efficiency and easy error generation.
Disclosure of Invention
The invention aims to overcome the defects of low test efficiency and high error rate of a photoelectric converter tested by adopting a manual test mode in the prior art, and provides a test device of the photoelectric converter.
The invention solves the technical problems through the following technical scheme:
the invention provides a testing device of a photoelectric converter, which comprises an upper computer and a communication data module in communication connection with the upper computer, wherein the communication data module is in communication connection with the photoelectric converter to be tested;
the upper computer is used for acquiring the type information of the photoelectric converter to be tested, configuring the test parameters of the communication data module based on the type information and generating a target test instruction;
the communication data module is used for receiving the target test instruction sent by the upper computer, sending a target test signal to the photoelectric converter to be tested based on the target test instruction, and receiving a target feedback signal sent by the photoelectric converter after the photoelectric converter performs photoelectric conversion on the target test signal; and analyzing and processing the target feedback signal to obtain a test result.
The test device of the photoelectric converter provided by the scheme controls the communication data module to send and receive signals according to a target mode by pre-configuring test parameters, realizes automatic test of different types of photoelectric converters, can improve the test efficiency of the photoelectric converter, and reduces the test error rate.
Preferably, the communication data module comprises an FPGA (field programmable gate array) unit and an optoelectronic unit which are in communication connection;
when the target test instruction comprises a light emission test instruction, the FPGA unit is used for receiving the light emission test instruction, generating a test electrical signal based on the light emission test instruction and sending the test electrical signal to the photoelectric converter to be tested;
the photoelectric unit is used for receiving a feedback optical signal sent by the photoelectric converter to be tested after performing photoelectric conversion processing on the test electrical signal and converting the feedback optical signal into a feedback electrical signal;
the FPGA unit is also used for receiving the feedback electric signal sent by the photoelectric unit and analyzing and processing the feedback electric signal to obtain the test result.
In the scheme, the signals generated by the FPGA unit are matched with the signals converted by the photoelectric unit, so that the light emission function of the photoelectric converter is tested, and the test convenience and accuracy of the photoelectric converter are improved.
Preferably, the testing device further comprises an optical power meter in communication connection with the upper computer and the FPGA unit;
when the test parameter comprises a target light emission power value, the optical power meter is used for receiving the feedback optical signal and acquiring an actual light emission power value of the photoelectric converter to be tested based on the feedback optical signal;
and the FPGA unit is also used for receiving the actual light emission power value and analyzing and obtaining a light emission power test result according to the target light emission power value and the actual light emission power value.
In the scheme, the optical power meter can be used for testing the optical power value of the light emission function of the photoelectric converter to be tested, so that the test comprehensiveness of the photoelectric converter is improved.
Preferably, the communication data module comprises an FPGA unit and a photoelectric unit which are in communication connection;
when the target test instruction comprises a light receiving test instruction, the FPGA unit is used for receiving the light receiving test instruction and generating a test electric signal based on the light receiving test instruction;
the photoelectric unit is used for converting the test electric signal into a test optical signal and sending the test optical signal to the photoelectric converter to be tested;
the FPGA unit is also used for receiving a feedback electric signal sent by the photoelectric converter to be tested after the photoelectric conversion processing is carried out on the test optical signal, and analyzing and processing the feedback electric signal to obtain the test result.
In the scheme, the signals generated by the FPGA unit are matched with the signals converted by the photoelectric unit, so that the light receiving function of the photoelectric converter is tested, and the convenience and the accuracy of the test of the photoelectric converter are improved.
Preferably, the testing device further comprises an optical attenuator in communication connection with the upper computer and the FPGA unit;
when the test parameters comprise target light receiving sensitivity, the optical attenuator is used for receiving the feedback electric signal and acquiring the actual light receiving sensitivity of the photoelectric converter to be tested based on the feedback electric signal;
and the FPGA unit is also used for receiving the actual light receiving power value and analyzing to obtain a light receiving sensitivity test result according to the target light receiving sensitivity and the actual light receiving sensitivity.
In this scheme, the optical attenuator can be used to test the optical sensitivity of the light receiving function of the photoelectric converter to be tested, thereby improving the test comprehensiveness of the photoelectric converter.
Preferably, the test parameters further include a target bit error rate;
the FPGA unit is further used for obtaining an actual error rate of the photoelectric converter to be tested according to the feedback electric signal and analyzing to obtain an error rate test result according to the target error rate and the actual error rate.
In the scheme, the FPGA unit is used for testing the error rate of the photoelectric converter to be tested, so that the comprehensiveness and the accuracy of the test on the photoelectric converter can be further improved.
Preferably, a shell structure of the communication data module is provided with a connecting portion for connecting the photoelectric converter to be tested, and the communication data module is in communication connection with the photoelectric converter to be tested through an optical fiber at the connecting portion.
In the scheme, the communication data module is physically connected with the photoelectric converter to be tested through the optical fiber, so that the input and output of signals can be realized, and the connector function of the photoelectric converter to be tested can be tested.
Preferably, the number of first channels of the channels for optical transmission and optical reception in the communication data module is equal to or greater than the number of second channels of the channels for optical transmission and optical reception in the optoelectronic converter under test.
In the scheme, the expandability of the testing device of the photoelectric converter can be improved by matching and setting the number of the optical transmitting channels and the number of the optical receiving channels in the communication data module, and the testing device can adapt to the testing requirements of different types of photoelectric converters.
Preferably, the testing device further comprises a display device in communication connection with the upper computer;
the upper computer is used for receiving the test result of the communication data module and controlling the display device to display the test result.
In the scheme, the test result of the photoelectric converter is displayed through the display device, so that a user can conveniently control the test, and the use convenience of the test device is improved.
Preferably, the communication data module further comprises a storage module in communication connection with the upper computer, and the storage module is used for recording the test result;
and/or the presence of a gas in the atmosphere,
the upper computer is further used for obtaining the operation authority of the user, and if the operation authority is matched with the preset authority, the user is allowed to carry out test operation.
In the scheme, the storage module is arranged, so that the test result can be automatically recorded, and the test efficiency of the photoelectric converter is improved; through the authority management, the user can more conveniently and safely obtain the test result.
On the basis of the common knowledge in the field, the preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows: the communication data module comprising the FPGA unit realizes the functions of high-speed data transmission, data analysis and the like, and meanwhile, optical testing equipment such as an optical power meter, an optical attenuator and the like is adopted to realize automatic testing of different types of photoelectric converters, so that the testing error rate can be reduced, and the testing efficiency and the stability of the photoelectric converters are improved.
Drawings
Fig. 1 is a schematic structural diagram of a testing apparatus for a photoelectric converter in embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of a testing apparatus for a photoelectric converter according to embodiment 2 of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
The embodiment provides a testing device of a photoelectric converter, as shown in fig. 1, the testing device includes an upper computer 1 and a communication data module 2 in communication connection with the upper computer, the communication data module is in communication connection with the photoelectric converter to be tested;
the upper computer 1 is used for acquiring type information of the photoelectric converter to be tested, configuring test parameters of the communication data module 2 based on the type information and generating a target test instruction;
the communication data module 2 is used for receiving a target test instruction sent by the upper computer 1, sending a target test signal to the photoelectric converter to be tested based on the target test instruction, and receiving a target feedback signal sent by the photoelectric converter after the photoelectric conversion processing is carried out on the target test signal; and analyzing and processing the target feedback signal to obtain a test result.
Specifically, according to different types of photoelectric converters to be tested (for example, 4-transmitter 4-receiver type, 8-receiver type, and the like), the upper computer configures different test parameters (including test cases, test scripts, and the like) for the communication data module through test software, and generates a target test instruction according to a test requirement. The communication data module sends a target test signal (optical signal or electric signal) to the photoelectric converter to be tested according to the received target test instruction, and then receives a target feedback signal sent back after the photoelectric converter carries out photoelectric conversion processing on the target test signal; and analyzing and processing the target feedback signal to obtain a test result.
The testing device of the photoelectric converter provided by the embodiment controls the communication data module to send and receive signals according to a target mode by pre-configuring the testing parameters, so that the automatic testing of the photoelectric converters of different types is realized, the testing efficiency of the photoelectric converter can be improved, and the testing error rate is reduced.
Example 2
On the basis of embodiment 1, the present embodiment provides a test apparatus for a photoelectric converter.
In an implementable solution, as shown in fig. 2, the communication data module 2 comprises an FPGA unit 21 and an opto-electronic unit 22 which are communicatively connected;
when the target test instruction comprises a light emission test instruction, the FPGA unit 21 is configured to receive the light emission test instruction, generate a test electrical signal based on the light emission test instruction, and send the test electrical signal to the to-be-tested photoelectric converter;
the photoelectric unit 22 is configured to receive a feedback optical signal sent by the to-be-tested photoelectric converter after performing photoelectric conversion processing on the test electrical signal, and convert the feedback optical signal into a feedback electrical signal;
the FPGA unit 21 is further configured to receive a feedback electrical signal sent by the photoelectric unit, and analyze and process the feedback electrical signal to obtain a test result.
Preferably, the FPGA unit adopts a domestic FPGA chip.
Specifically, when testing the light emitting function (i.e., the function of converting an electrical signal into an optical signal) of the optical-to-electrical converter, the FPGA unit generates a test electrical signal according to a pre-configured test script and a test case, and sends the test electrical signal to the optical-to-electrical converter to be tested. The photoelectric unit comprises a photoelectric conversion circuit, receives a feedback optical signal sent back after the photoelectric converter to be tested performs electric-to-optical conversion on the test electrical signal, and converts the feedback optical signal into a feedback electrical signal. And the FPGA unit analyzes and processes the feedback electric signal sent by the photoelectric unit to obtain a test result of the light emission function.
In the scheme, the signals generated by the FPGA unit are matched with the signals converted by the photoelectric unit, so that the light emission function of the photoelectric converter is tested, and the test convenience and accuracy of the photoelectric converter are improved.
In an implementable scheme, as shown in fig. 2, the testing device further includes an optical power meter 3 in communication connection with the upper computer 1 and the FPGA unit 21;
when the test parameter includes the target light emission power value, the optical power meter 3 is configured to receive the feedback light signal, and obtain an actual light emission power value of the to-be-tested photoelectric converter based on the feedback light signal;
the FPGA unit 21 is further configured to receive the actual light emission power value, and analyze the actual light emission power value and the target light emission power value to obtain a light emission power test result.
In the scheme, the optical power meter can be used for testing the optical power value of the light emission function of the photoelectric converter to be tested, so that the test comprehensiveness of the photoelectric converter is improved.
In an implementable scenario, as shown in fig. 2, the communication data module 2 comprises an FPGA unit 21 and an opto-electronic unit 22 which are communicatively connected;
when the target test instruction comprises a light receiving test instruction, the FPGA unit 212 is configured to receive the light receiving test instruction and generate a test electrical signal based on the light receiving test instruction;
the photoelectric unit 22 is used for converting the test electrical signal into a test optical signal and sending the test optical signal to the photoelectric converter to be tested;
the FPGA unit 21 is further configured to receive a feedback electrical signal sent by the to-be-tested photoelectric converter after performing photoelectric conversion processing on the test optical signal, and analyze and process the feedback electrical signal to obtain a test result.
Preferably, the FPGA unit adopts a domestic FPGA chip.
Specifically, when testing the light receiving function (i.e. converting an optical signal into an electrical signal) of the photoelectric converter, the FPGA unit generates a test electrical signal according to a pre-configured test script and a test case; the photoelectric unit comprises an electric-to-optical circuit, converts the test electrical signal into a test optical signal and sends the test optical signal to the photoelectric converter to be tested; the FPGA unit receives a feedback electric signal sent back after the photoelectric conversion processing is carried out on the test optical signal by the photoelectric converter to be tested, and the feedback electric signal is analyzed and processed to obtain a test result of the optical receiving function.
In the scheme, the signals generated by the FPGA unit are matched with the signals converted by the photoelectric unit, so that the light receiving function of the photoelectric converter is tested, and the convenience and the accuracy of the test of the photoelectric converter are improved.
In an implementable scheme, the testing device further comprises an optical attenuator 4 which is in communication connection with the upper computer 1 and the FPGA unit 21;
when the test parameters comprise the target light receiving sensitivity, the optical attenuator 4 is used for receiving the feedback electric signal and acquiring the actual light receiving sensitivity of the photoelectric converter to be tested based on the feedback electric signal;
the FPGA unit 21 is further configured to receive the actual light receiving power value, and analyze the actual light receiving sensitivity and the target light receiving sensitivity to obtain a light receiving sensitivity test result.
In this embodiment, the optical attenuator can test the optical sensitivity of the light receiving function of the photoelectric converter to be tested, thereby improving the test comprehensiveness of the photoelectric converter.
In one implementation, the test parameters further include a target bit error rate;
the FPGA unit 21 is further configured to obtain an actual bit error rate of the to-be-tested photoelectric converter according to the feedback electrical signal, and analyze the actual bit error rate according to the target bit error rate and the actual bit error rate to obtain a bit error rate test result.
In the scheme, the FPGA unit is used for testing the error rate of the photoelectric converter to be tested, so that the comprehensiveness and the accuracy of the test on the photoelectric converter can be further improved.
In an implementable solution, the shell structure of the communication data module 2 is provided with a connection portion for connecting the photoelectric converter to be tested, and the communication data module 2 and the photoelectric converter to be tested are in communication connection by using an optical fiber at the connection portion.
In particular, the connecting part may be disposed on the top of the communication data module, providing a function of carrying the optoelectronic converter to be tested.
In the scheme, the communication data module is physically connected with the photoelectric converter to be tested through the optical fiber, so that the input and output of signals can be realized, and the connector function of the photoelectric converter to be tested can be tested.
In an implementable solution, the first number of channels for optical transmission and optical reception in the communication data module 2 is equal to or greater than the second number of channels for optical transmission and optical reception in the photoelectric converter under test.
Specifically, the number of the optical transmission channels and the number of the optical reception channels in the communication data module may be set in a matching manner according to the model of the photoelectric converter to be tested. For example, to test the 4-transmitter 4-receiver and 8-receiver optoelectronic converters, the 4-transmitter and 8-receiver channels are set in the communication data module accordingly.
In the scheme, the expandability of the testing device of the photoelectric converter can be improved by matching and setting the number of the optical transmitting channels and the optical receiving channels in the communication data module, and the testing device is suitable for testing requirements of different types of photoelectric converters.
In an implementation, as shown in fig. 2, the testing device further includes a display device 5 communicatively connected to the upper computer 1;
the upper computer is used for receiving the test result of the communication data module and controlling the display device to display the test result.
In particular, the display device may be a display screen.
In the scheme, the test result of the photoelectric converter is displayed through the display device, so that a user can conveniently control the test, and the use convenience of the test device is improved.
In an implementation scheme, the communication data module further includes a storage module 6 in communication connection with the upper computer, and the storage module is used for recording the test result.
In the scheme, the storage module is arranged, so that the test result can be automatically recorded, and the test efficiency of the photoelectric converter is improved.
In an implementable scheme, the upper computer is further configured to obtain an operation authority of the user, and if the operation authority is matched with a preset authority, the user is allowed to perform a test operation.
In the scheme, through the authority management, a user can more conveniently and safely obtain a test result.
In an implementable version, the testing device of the photoelectric converter further comprises a power supply 7.
Specifically, the power supply includes an operating power supply and a signal power supply. The working power supply comprises a power distribution unit, and the power distribution unit is used for distributing external commercial power to a main case and each instrument of the testing device.
The testing device for the photoelectric converter provided by this embodiment implements functions such as high-speed data transmission and data analysis through the communication data module formed by the FPGA unit and the photoelectric unit, and also implements automatic testing of different types of photoelectric converters by using optical testing devices such as an optical power meter and an optical attenuator, thereby reducing the testing error rate and improving the testing efficiency and stability of the photoelectric converter.
While specific embodiments of the invention have been described above, it will be understood by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. The testing device of the photoelectric converter is characterized by comprising an upper computer and a communication data module in communication connection with the upper computer, wherein the communication data module is in communication connection with the photoelectric converter to be tested;
the upper computer is used for acquiring the type information of the photoelectric converter to be tested, configuring the test parameters of the communication data module based on the type information and generating a target test instruction;
the communication data module is used for receiving the target test instruction sent by the upper computer, sending a target test signal to the photoelectric converter to be tested based on the target test instruction, and receiving a target feedback signal sent by the photoelectric converter after the photoelectric converter performs photoelectric conversion on the target test signal; and analyzing and processing the target feedback signal to obtain a test result.
2. The device for testing an optical-to-electrical converter according to claim 1, wherein the communication data module comprises an FPGA unit and an opto-electrical unit that are communicatively connected;
when the target test instruction comprises a light emission test instruction, the FPGA unit is used for receiving the light emission test instruction, generating a test electrical signal based on the light emission test instruction and sending the test electrical signal to the photoelectric converter to be tested;
the photoelectric unit is used for receiving a feedback optical signal sent by the photoelectric converter to be tested after performing photoelectric conversion processing on the test electric signal and converting the feedback optical signal into a feedback electric signal;
the FPGA unit is also used for receiving the feedback electric signal sent by the photoelectric unit and analyzing and processing the feedback electric signal to obtain the test result.
3. The test device of the photoelectric converter according to claim 2, further comprising an optical power meter in communication connection with the upper computer and the FPGA unit;
when the test parameter includes a target light emission power value, the optical power meter is configured to receive the feedback light signal and obtain an actual light emission power value of the to-be-tested photoelectric converter based on the feedback light signal;
the FPGA unit is further configured to receive the actual light emission power value, and analyze to obtain a light emission power test result according to the target light emission power value and the actual light emission power value.
4. The test device of the photoelectric converter according to claim 1, wherein the communication data module comprises an FPGA unit and a photoelectric unit which are in communication connection;
when the target test instruction comprises a light receiving test instruction, the FPGA unit is used for receiving the light receiving test instruction and generating a test electric signal based on the light receiving test instruction;
the photoelectric unit is used for converting the test electric signal into a test optical signal and sending the test optical signal to the photoelectric converter to be tested;
the FPGA unit is also used for receiving a feedback electric signal sent by the photoelectric converter to be tested after the photoelectric conversion processing is carried out on the test optical signal, and analyzing and processing the feedback electric signal to obtain the test result.
5. The device for testing an optical-to-electrical converter according to claim 4, further comprising an optical attenuator communicatively connected to the upper computer and the FPGA unit;
when the test parameters comprise target light receiving sensitivity, the optical attenuator is used for receiving the feedback electrical signal and acquiring the actual light receiving sensitivity of the photoelectric converter to be tested based on the feedback electrical signal;
and the FPGA unit is also used for receiving the actual light receiving power value and analyzing to obtain a light receiving sensitivity test result according to the target light receiving sensitivity and the actual light receiving sensitivity.
6. The test apparatus for an optical-to-electrical converter according to any one of claims 2 to 5, wherein the test parameters further include a target bit error rate;
the FPGA unit is further used for obtaining an actual error rate of the photoelectric converter to be tested according to the feedback electric signal and analyzing to obtain an error rate test result according to the target error rate and the actual error rate.
7. The device for testing an optoelectronic converter according to claim 1, wherein a connecting portion for connecting the optoelectronic converter to be tested is provided on the housing structure of the communication data module, and the communication data module and the optoelectronic converter to be tested are communicatively connected by using an optical fiber at the connecting portion.
8. The test apparatus for an optical-electrical converter according to claim 1, wherein a first number of channels for optical transmission and optical reception in the communication data module is equal to or greater than a second number of channels for optical transmission and optical reception in the optical-electrical converter under test.
9. The device for testing an optical-to-electrical converter according to claim 1, further comprising a display device communicatively connected to the upper computer;
the upper computer is used for receiving the test result of the communication data module and controlling the display device to display the test result.
10. The testing device of the photoelectric converter according to claim 1, wherein the communication data module further comprises a storage module in communication connection with the upper computer, the storage module being configured to record the testing result;
and/or the presence of a gas in the gas,
the upper computer is further used for obtaining the operation authority of the user, and if the operation authority is matched with the preset authority, the user is allowed to carry out test operation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116800340A (en) * | 2023-08-21 | 2023-09-22 | 深圳市知用电子有限公司 | Signal transmission system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116800340A (en) * | 2023-08-21 | 2023-09-22 | 深圳市知用电子有限公司 | Signal transmission system |
| CN116800340B (en) * | 2023-08-21 | 2023-11-03 | 深圳市知用电子有限公司 | Signal transmission system |
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