CN117498932A - Frequency converter optical fiber communication link self-detection device and method - Google Patents
Frequency converter optical fiber communication link self-detection device and method Download PDFInfo
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- CN117498932A CN117498932A CN202311522433.9A CN202311522433A CN117498932A CN 117498932 A CN117498932 A CN 117498932A CN 202311522433 A CN202311522433 A CN 202311522433A CN 117498932 A CN117498932 A CN 117498932A
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- 238000004891 communication Methods 0.000 title claims abstract description 62
- 239000013307 optical fiber Substances 0.000 title claims abstract description 49
- 238000001514 detection method Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title abstract description 8
- 230000003287 optical effect Effects 0.000 claims abstract description 211
- 238000010998 test method Methods 0.000 claims abstract description 3
- 238000012360 testing method Methods 0.000 claims description 113
- 239000004065 semiconductor Substances 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims 1
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000006731 degradation reaction Methods 0.000 abstract description 4
- 230000032683 aging Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000002093 peripheral effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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Classifications
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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
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
-
- 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
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0791—Fault location on the transmission path
-
- 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
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
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Abstract
The invention discloses a self-detection device for an optical fiber communication link of a frequency converter, which comprises an adjustable power supply P1, a controller module K1, an optical transmitter TX1, an optical receiver RX1, an optical fiber 2, an adjustable power supply P2, a controller module K2, an optical transmitter TX2 and an optical receiver RX2; also disclosed are self-test methods thereof; the invention can be used for detecting the degradation of the optical communication quality caused by the factors of poor contact, line loss, signal interference, aging failure of the optical transceiver and the like of the optical fiber communication link of the frequency converter, and can be used for finding the hidden quality trouble of the optical fiber link in advance so as to avoid or reduce the equipment failure caused by the sudden failure of the optical fiber link in the use process.
Description
Technical Field
The invention relates to the field of optical fiber communication of electrical equipment, in particular to a self-detection device and a detection method for an optical fiber communication link of a frequency converter.
Background
The power of the frequency converter is larger and the volume is smaller, signals inside the frequency converter are easy to interfere, and for this reason, the signal transmission inside the frequency converter uses a large amount of optical communication, namely: the frequency converter controller converts the electric signal into an optical signal through the optical transmitter, the optical signal is transmitted through the optical fiber cable, and the corresponding optical receiver converts the optical signal into an electric signal which is used for controlling the fully-controlled semiconductor device to work. A set of optical signals emanating from an optical transmitter through an optical fiber connector (optical coupler), an optical fiber cable, an optical receiver, the optical signals experiencing multiple losses, comprising: insertion loss of an optical fiber connector (optical coupler), pollution loss of an optical fiber interface, inherent loss of an optical fiber cable, bending loss, external force acting loss and the like.
The prior art means mainly strengthens the control of the production process and the power-on debugging of equipment to ensure that the optical fiber cable is normally communicated. In the practical use process of the equipment, the degradation of the optical transmitter leads to the reduction of optical power, the degradation of the optical receiver leads to the reduction of receiving sensitivity, electromagnetic interference, pollutants (mainly dust) enter an optical fiber interface, external acting force damages factors such as an optical fiber cable and the like, the optical path loss is increased, and when the optical path loss reaches or is lower than the critical value of the optical receiver, the optical communication fault can be caused.
Because the loss in the optical signal transmission process cannot be quantitatively detected, the existing technical means can not effectively detect and avoid similar optical communication faults after the delivery of the product except for a certain margin at the beginning of design.
Disclosure of Invention
The invention aims to overcome the defects of the technology, and provides a self-detection device for an optical fiber communication link of a frequency converter, which can discover hidden danger in the optical fiber communication link of the frequency converter in advance through autonomous equipment inspection, so as to reduce or avoid equipment faults caused by optical fiber communication faults in the operation process of the frequency converter.
The technical scheme adopted for solving the technical problems is as follows: the self-detection device comprises a controller module K1, a controller module K2, and an adjustable power supply P1 and an adjustable power supply P2 which are respectively connected with the controller module K1 and the controller module K2, wherein two sides of the controller module K1 are respectively connected with an optical receiver RX1 and an optical transmitter TX1, two sides of the controller module K2 are respectively connected with the optical receiver RX2 and the optical transmitter TX2, the optical transmitter TX1 and the optical receiver RX2 are connected through the optical fiber 1, the optical transmitter TX2 and the optical receiver RX1 are connected through the optical fiber 2, the adjustable power supply P1 simultaneously provides working power for the controller module K1, the optical transmitter TX1 and the optical receiver RX1, and the adjustable power supply P2 simultaneously provides working power for the controller module K2, the optical transmitter TX2 and the optical receiver RX2; the controller module K1 converts an electrical signal into an optical signal through the optical transmitter TX1, the optical signal is transmitted to the optical receiver RX2 through the optical fiber 1, the optical receiver RX2 converts the optical signal into an electrical signal and transmits the electrical signal to the controller module K2, the controller module K2 converts the electrical signal into an optical signal through the optical transmitter TX2, the optical signal is transmitted to the optical receiver RX1 through the optical fiber 2, and the optical receiver RX1 converts the optical signal into an electrical signal and transmits the electrical signal to the controller module K1; the controller module K1 or the controller module K2 is also connected with a frequency converter full-control type semiconductor device control circuit, the controller module K1 or the controller module K2 controls the corresponding full-control type semiconductor device to work according to the signal content, and the controller module K1 and the controller module K2 respectively control the adjustable power supply P1 and the adjustable power supply P2 to output rated working voltage V0 of the control and optical communication module, maximum working voltage V1 of the control and optical communication module and minimum working voltage V2 of the control and optical communication module and saw-tooth waves.
The full-control semiconductor device of the frequency converter optical fiber communication link self-detection device comprises, but is not limited to, a IGCT, IGBT, MOS pipe.
The self-detection device for the optical fiber communication link of the frequency converter is characterized in that the sawtooth duty ratio is 50%, the peak voltage V2 and the trough voltage V1 are 1 time, 3 times and 5 times of the working frequency of the fully-controlled semiconductor device.
The controller module K1 is an MCU control chip PIC16F887, the controller module K2 is an MCU control chip PIC16F818, the optical transmitters TX1 and TX2 are HFBR1412, the optical receivers RX1 and RX2 are HFBR2412, and the driving control device TK1 (TK 2) of the optical transmitter TX1 (TX 2) is a transistor MMBT3904. The output rated working voltage V0 of the adjustable power supply P1 and the adjustable power supply P2 is 5V, the maximum working voltage V1 is 5.5V, and the minimum working voltage V2 is 4V.
The second object of the present invention is to provide a self-detecting method of a self-detecting device of an optical fiber communication link of a frequency converter, comprising the following steps:
(1) When the equipment is started up for self-detection or has an optical fiber communication link for self-detection, the controller module K1 initiates the self-detection of the optical fiber communication link;
(2) The controller module K1 controls the adjustable power supply P1 to output rated working voltage V0;
(3) The controller module K1 sends the test code to the optical receiver RX2 through the optical transmitter TX1, the optical receiver RX2 transmits the test code to the controller module K2, the controller module K2 controls the adjustable power supply P2 to output the voltage V0, the controller module K2 sends the test code to the optical receiver RX1 through the optical transmitter TX2, and the optical receiver RX1 transmits the test code to the controller module K1;
(4) Judging: the controller module K1 receives the test code and is correct, and the program enters the next step; the controller module K1 does not receive the test code or receives the test code error, outputs the rated voltage communication fault 1, finishes the self-detection and returns the program;
(5) The controller module K1 controls the adjustable power supply P1 to output the minimum working voltage V1;
(6) The controller module K1 sends the test code to the optical receiver RX2 through the optical transmitter TX1, the optical receiver RX2 transmits the test code to the controller module K2, the controller module K2 controls the adjustable power supply P2 to output the minimum working voltage V1, the controller module K2 sends the test code to the optical receiver RX1 through the optical transmitter TX2, and the optical receiver RX1 transmits the test code to the controller module K1;
(7) Judging: the controller module K1 receives the test code and is correct, and the program enters the next step; the controller module K1 does not receive the test code or receives the test code error, outputs the over-low voltage communication fault 2, finishes the self-detection and returns the program;
(8) The controller module K1 controls the adjustable power supply P1 to output the maximum working voltage V2;
(9) The controller module K1 sends the test code to the optical receiver RX2 through the optical transmitter TX1, the optical receiver RX2 transmits the test code to the controller module K2, the controller module K2 controls the adjustable power supply P2 to output the voltage V2, the controller module K2 sends the test code to the optical receiver RX1 through the optical transmitter TX2, and the optical receiver RX1 transmits the test code to the controller module K1;
(10) Judging: the controller module K1 receives the test code and is correct, and the program enters the next step; the controller module K1 does not receive the test code or receives the test code error, outputs an overvoltage communication fault 3, finishes the self-detection and returns the program;
(11) The controller module K1 controls the adjustable power supply P1 to output sawtooth waves;
(12) The controller module K1 sends the test code to the optical receiver RX2 through the optical transmitter TX1, the optical receiver RX2 transmits the test code to the controller module K2, the controller module K2 controls the adjustable power supply P2 to output sawtooth waves, the controller module K2 sends the test code to the optical receiver RX1 through the optical transmitter TX2, and the optical receiver RX1 transmits the test code to the controller module K1;
(13) Judging: the controller module K1 receives the test code and is correct, and the program enters the next step; the controller module K1 does not receive the test code or receives the test code error, outputs the sawtooth wave communication fault 4, and returns the program;
(14) The controller module K1 controls the adjustable power supply P1 to output rated working voltage V0;
(15) The controller module K1 sends the test code to the optical receiver RX2 through the optical transmitter TX1, the optical receiver RX2 transmits the test code to the controller module K2, the controller module K2 controls the adjustable power supply P2 to output the voltage V0, the controller module K2 sends the test code to the optical receiver RX1 through the optical transmitter TX2, and the optical receiver RX1 transmits the test code to the controller module K1;
(16) Judging: the controller module K1 receives the test code and is correct, and the program enters the next step; the controller module K1 does not receive the test code or receives the test code error, outputs the communication fault 5 and returns the program;
(17) And the optical fiber communication link works normally, and returns after the detection is finished.
The beneficial effects of the invention are as follows: the self-detection device can detect the communication effect of the optical communication link when the frequency converter is electrified and started and the fully-controlled semiconductor device does not work yet, and can discover the communication quality degradation caused by factors such as poor contact, line loss, signal interference, aging failure of the optical transceiver and the like in advance, so that the subsequent possible faults are avoided, and larger equipment fault loss is caused.
Drawings
FIG. 1 is a block diagram of a self-test device according to the present invention;
FIG. 2 is a voltage waveform diagram of the output of the adjustable power source P1 (adjustable power source P2) according to the present invention;
FIG. 3 is a schematic diagram of the operation of the present invention;
FIG. 4 is a flow chart of the self-test method of the present invention.
Description of the embodiments
Embodiments of the invention are further described below with reference to specific examples and figures.
Example 1
Referring to fig. 1, the invention discloses a self-detection device for an optical fiber communication link of a frequency converter, which comprises a controller module K1, a controller module K2, and an adjustable power supply P1 and an adjustable power supply P2 which are respectively connected with the controller module K1 and the controller module K2, wherein two sides of the controller module K1 are respectively connected with an optical receiver RX1 and an optical transmitter TX1, two sides of the controller module K2 are respectively connected with the optical receiver RX2 and the optical transmitter TX2, the optical transmitter TX1 and the optical receiver RX2 are connected through an optical fiber 1, the optical transmitter TX2 and the optical receiver RX1 are connected through an optical fiber 2, the adjustable power supply P1 simultaneously provides a working power supply for the controller module K1, the optical transmitter TX1 and the optical receiver RX1, and the adjustable power supply P2 simultaneously provides a working power supply for the controller module K2, the optical transmitter TX2 and the optical receiver RX2; the controller module K1 converts an electrical signal into an optical signal through the optical transmitter TX1, the optical signal is transmitted to the optical receiver RX2 through the optical fiber 1, the optical receiver RX2 converts the optical signal into an electrical signal and transmits the electrical signal to the controller module K2, the controller module K2 converts the electrical signal into an optical signal through the optical transmitter TX2, the optical signal is transmitted to the optical receiver RX1 through the optical fiber 2, and the optical receiver RX1 converts the optical signal into an electrical signal and transmits the electrical signal to the controller module K1; the controller module K1 or the controller module K2 is also connected with a control circuit of a full-control semiconductor device (including a IGCT, IGBT, MOS pipe) of the frequency converter, when one controller module is an upper computer, the other controller module is an on-site controller, the controller module K1 or the controller module K2 controls the corresponding full-control semiconductor device to work according to the signal content, and the controller module K1 and the controller module K2 respectively control the adjustable power supply P1 and the adjustable power supply P2 to output the rated working voltage V0 of the control and optical communication module, the maximum working voltage V1 of the control and optical communication module, the minimum working voltage V2 of the control and optical communication module and the sawtooth wave.
The adjustable power supply P1 and the adjustable power supply P2 are controllable adjusting power supplies, and output voltage V0 when in normal operation, and can be controlled by the controller module K1 and the controller module K2 to output voltage shown in figure 2. The adjustable power sources P1, P2 can provide V0, V1, V2 as shown in fig. 2, and can provide sawtooth waves in the time period T2 to T5 shown in fig. 2. In fig. 2, V0 is a rated operating voltage of the control and optical communication module, V1 is a minimum operating voltage of the control and optical communication module, and V2 is a maximum operating voltage of the control and optical communication module. The time length of T0-T5 is controlled by a controller module K1 (a controller module K2), the duty ratio of the sawtooth wave in the time period of T2-T5 is 50%, and the frequency is 1 time, 3 times and 5 times of the working frequency of the fully-controlled semiconductor device.
The controller module K1 and the controller module K2 are modules including a logic controller and a peripheral circuit, wherein the controller module K1 initiates a self-test program of an optical fiber communication link when the frequency converter is started up for self-test or the self-test is needed, controls the adjustable power supply P1 to output a corresponding voltage, transmits a self-test signal to the controller module K2 through the optical fiber communication link, and the controller module K2 receives the self-test signal sent by the controller module K1, controls the adjustable power supply P2 to output the corresponding voltage and feeds back the self-test signal to the adjustable power supply P1.
During normal operation, the controller module K2 receives the control signal of the controller module K1 and controls the full-control semiconductor device control circuit DL of the frequency converter to work.
In fig. 3, the output V0 of the adjustable power supply P1 (adjustable power supply P2) is 5V, V1 is 5.5V, and V2 is 4V; the controller module K1 is an MCU control chip PIC16F887, the controller module K2 is an MCU control chip PIC16F818, the optical transmitter TX1 (optical transmitter TX 2) is an HFBR1412, the optical receiver RX1 (optical receiver RX 2) is an HFBR2412, R1-R6 are common current limiting resistors, and the T controller module K1 (T controller module K2) is a transistor MMBT3904. The drive control device TK1 (TK 2) of the optical transmitter TX1 (TX 2) is the transistor MMBT3904.
Example 2
Referring to fig. 4, the self-detection method of the self-detection device for the optical fiber communication link of the frequency converter disclosed by the invention comprises the following steps.
(1) When the equipment is started to perform self-detection or the optical fiber communication link is in self-detection, the controller module K1 initiates the self-detection of the optical fiber communication link.
(2) The controller module K1 controls the adjustable power supply P1 to output the rated operating voltage V0.
(3) The controller module K1 transmits the test code to the optical receiver RX2 through the optical transmitter TX1, the optical receiver RX2 transmits the test code to the controller module K2, the controller module K2 controls the adjustable power supply P2 to output the voltage V0, the controller module K2 transmits the test code to the optical receiver RX1 through the optical transmitter TX2, and the optical receiver RX1 transmits the test code to the controller module K1.
(4) Judging: the controller module K1 receives the test code and is correct, and the program enters the next step; the controller module K1 outputs the rated voltage communication fault 1 when no test code is received or a test code error is received, the self-detection is finished, and the program returns.
(5) The controller module K1 controls the adjustable power supply P1 to output the minimum operating voltage V1.
(6) The controller module K1 transmits the test code to the optical receiver RX2 through the optical transmitter TX1, the optical receiver RX2 transmits the test code to the controller module K2, the controller module K2 controls the adjustable power supply P2 to output the minimum operating voltage V1, the controller module K2 transmits the test code to the optical receiver RX1 through the optical transmitter TX2, and the optical receiver RX1 transmits the test code to the controller module K1.
(7) Judging: the controller module K1 receives the test code and is correct, and the program enters the next step; the controller module K1 does not receive the test code or receives the test code error, outputs the over-low voltage communication fault 2, and the self-detection is finished and the program returns.
(8) The controller module K1 controls the adjustable power supply P1 to output the maximum operating voltage V2.
(9) The controller module K1 transmits the test code to the optical receiver RX2 through the optical transmitter TX1, the optical receiver RX2 transmits the test code to the controller module K2, the controller module K2 controls the adjustable power supply P2 to output the voltage V2, the controller module K2 transmits the test code to the optical receiver RX1 through the optical transmitter TX2, and the optical receiver RX1 transmits the test code to the controller module K1.
(10) Judging: the controller module K1 receives the test code and is correct, and the program enters the next step; the controller module K1 does not receive the test code or receives the test code error, outputs the overvoltage communication fault 3, and the self-detection is finished and the program returns.
(11) The controller module K1 controls the adjustable power supply P1 to output a sawtooth wave.
(12) The controller module K1 transmits the test code to the optical receiver RX2 through the optical transmitter TX1, the optical receiver RX2 transmits the test code to the controller module K2, the controller module K2 controls the adjustable power supply P2 to output the sawtooth wave, the controller module K2 transmits the test code to the optical receiver RX1 through the optical transmitter TX2, and the optical receiver RX1 transmits the test code to the controller module K1.
(13) Judging: the controller module K1 receives the test code and is correct, and the program enters the next step; the controller module K1 does not receive the test code or receives the test code error, outputs the sawtooth wave communication fault 4 and returns the program.
(14) The controller module K1 controls the adjustable power supply P1 to output the rated operating voltage V0.
(15) The controller module K1 transmits the test code to the optical receiver RX2 through the optical transmitter TX1, the optical receiver RX2 transmits the test code to the controller module K2, the controller module K2 controls the adjustable power supply P2 to output the voltage V0, the controller module K2 transmits the test code to the optical receiver RX1 through the optical transmitter TX2, and the optical receiver RX1 transmits the test code to the controller module K1.
(16) Judging: the controller module K1 receives the test code and is correct, and the program enters the next step; the controller module K1 does not receive the test code or receives the test code error, outputs the communication fault 5, and returns the program.
(17) And the optical fiber communication link works normally, and returns after the detection is finished.
The program in fig. 4 sends the faults 1, 2, 3, 4 and 5 mainly used for the upper computer to know different times of faults, so as to provide basis for subsequent maintenance or continuous working.
The above embodiments are merely illustrative of the principles of the present invention and its control procedures, and several variations and modifications may be made by those skilled in the art without departing from the inventive concept, which are all within the scope of the invention.
Claims (6)
1. The utility model provides a converter fiber communication link self-detection device which characterized in that: the optical power supply comprises a controller module K1, a controller module K2, and an adjustable power supply P1 and an adjustable power supply P2 which are respectively connected with the controller module K1 and the controller module K2, wherein two sides of the controller module K1 are respectively connected with an optical receiver RX1 and an optical transmitter TX1, two sides of the controller module K2 are respectively connected with the optical receiver RX2 and the optical transmitter TX2, the adjustable power supply P1 simultaneously provides working power for the controller module K1, the optical transmitter TX1 and the optical receiver RX1, and the adjustable power supply P2 simultaneously provides working power for the controller module K2, the optical transmitter TX2 and the optical receiver RX2; the controller module K1 converts an electrical signal into an optical signal through the optical transmitter TX1, the optical signal is transmitted to the optical receiver RX2 through the optical fiber 1, the optical receiver RX2 converts the optical signal into an electrical signal and transmits the electrical signal to the controller module K2, the controller module K2 converts the electrical signal into an optical signal through the optical transmitter TX2, the optical signal is transmitted to the optical receiver RX1 through the optical fiber 2, and the optical receiver RX1 converts the optical signal into an electrical signal and transmits the electrical signal to the controller module K1; the controller module K1 or the controller module K2 is also connected with a frequency converter full-control type semiconductor device control circuit, the controller module K1 or the controller module K2 controls the full-control type semiconductor device to work, and the controller module K1 and the controller module K2 respectively control the adjustable power supply P1 and the adjustable power supply P2 to output rated working voltage V0 of the control and optical communication module, minimum working voltage V1 of the control and optical communication module and maximum working voltage V2 of the control and optical communication module and saw-tooth waves.
2. The device for self-detecting the optical fiber communication link of the frequency converter according to claim 1, wherein the fully-controlled semiconductor device is an IGCT, an IGBT or a MOS transistor.
3. The device for self-detecting the optical fiber communication link of the frequency converter according to claim 2, wherein the sawtooth duty ratio is 50%, the peak voltage V2 and the trough voltage V1 are 1 time, 3 times and 5 times the operating frequency of the fully-controlled semiconductor device.
4. A device for self-testing an optical fiber communication link of a frequency converter according to claim 1, 2 or 3, wherein the controller module K1 is an MCU control chip PIC16F887, the controller module K2 is an MCU control chip PIC16F818, the optical transmitters TX1 and TX2 are HFBRs 1412, the optical receivers RX1 and RX2 are HFBRs 2412, and the semiconductor devices of the optical transmitters TX1 and TX2 are transistors MMBT3904.
5. The device according to claim 4, wherein the output rated operating voltage V0 of the adjustable power source P1 and the adjustable power source P2 is 5V, the maximum operating voltage V1 is 5.5V, and the minimum operating voltage V2 is 4V.
6. A self-test method of the self-test device as claimed in claim 1, comprising the steps of:
(1) The controller module K1 initiates self-detection of the optical fiber communication link;
(2) The controller module K1 controls the adjustable power supply P1 to output rated working voltage V0;
(3) The controller module K1 sends the test code to the optical receiver RX2 through the optical transmitter TX1, the optical receiver RX2 transmits the test code to the controller module K2, the controller module K2 controls the adjustable power supply P2 to output the voltage V0, the controller module K2 sends the test code to the optical receiver RX1 through the optical transmitter TX2, and the optical receiver RX1 transmits the test code to the controller module K1;
(4) The controller module K1 receives the test code and is correct, and the program enters the next step; the controller module K1 does not receive the test code or receives the error of the test code, outputs the rated voltage communication fault, and finishes the self-detection;
(5) The controller module K1 controls the adjustable power supply P1 to output the minimum working voltage V1;
(6) The controller module K1 sends the test code to the optical receiver RX2 through the optical transmitter TX1, the optical receiver RX2 transmits the test code to the controller module K2, the controller module K2 controls the adjustable power supply P2 to output the minimum working voltage V1, the controller module K2 sends the test code to the optical receiver RX1 through the optical transmitter TX2, and the optical receiver RX1 transmits the test code to the controller module K1;
(7) The controller module K1 receives the test code and is correct, and the program enters the next step; the controller module K1 does not receive the test code or receives the test code error, outputs the over-low voltage communication fault, and finishes the self-detection;
(8) The controller module K1 controls the adjustable power supply P1 to output the maximum working voltage V2;
(9) The controller module K1 sends the test code to the optical receiver RX2 through the optical transmitter TX1, the optical receiver RX2 transmits the test code to the controller module K2, the controller module K2 controls the adjustable power supply P2 to output the voltage V2, the controller module K2 sends the test code to the optical receiver RX1 through the optical transmitter TX2, and the optical receiver RX1 transmits the test code to the controller module K1;
(10) The controller module K1 receives the test code and is correct, and the program enters the next step; the controller module K1 does not receive the test code or receives the test code error, outputs overvoltage communication fault, and finishes the self-detection;
(11) The controller module K1 controls the adjustable power supply P1 to output sawtooth waves;
(12) The controller module K1 sends the test code to the optical receiver RX2 through the optical transmitter TX1, the optical receiver RX2 transmits the test code to the controller module K2, the controller module K2 controls the adjustable power supply P2 to output sawtooth waves, the controller module K2 sends the test code to the optical receiver RX1 through the optical transmitter TX2, and the optical receiver RX1 transmits the test code to the controller module K1;
(13) The controller module K1 receives the test code and is correct, and the program enters the next step; the controller module K1 does not receive the test code or receives the test code error, outputs the sawtooth wave communication fault, and finishes the self-detection;
(14) The controller module K1 controls the adjustable power supply P1 to output rated working voltage V0;
(15) The controller module K1 sends the test code to the optical receiver RX2 through the optical transmitter TX1, the optical receiver RX2 transmits the test code to the controller module K2, the controller module K2 controls the adjustable power supply P2 to output the voltage V0, the controller module K2 sends the test code to the optical receiver RX1 through the optical transmitter TX2, and the optical receiver RX1 transmits the test code to the controller module K1;
(16) The controller module K1 receives the test code and is correct, and the program enters the next step; the controller module K1 does not receive the test code or receives the test code error, outputs the communication fault and finishes the self-detection;
(17) The optical fiber communication link works normally, the detection is finished, and the self-detection is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311522433.9A CN117498932A (en) | 2023-11-15 | 2023-11-15 | Frequency converter optical fiber communication link self-detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311522433.9A CN117498932A (en) | 2023-11-15 | 2023-11-15 | Frequency converter optical fiber communication link self-detection device and method |
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