CN113131999A - Optical communication module testing method - Google Patents
Optical communication module testing method Download PDFInfo
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- CN113131999A CN113131999A CN202110409409.9A CN202110409409A CN113131999A CN 113131999 A CN113131999 A CN 113131999A CN 202110409409 A CN202110409409 A CN 202110409409A CN 113131999 A CN113131999 A CN 113131999A
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- 238000012360 testing method Methods 0.000 title claims abstract description 65
- 238000004891 communication Methods 0.000 title claims abstract description 50
- 230000003287 optical effect Effects 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000005507 spraying Methods 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims description 41
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000010998 test method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 239000013307 optical fiber Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a test method of an optical communication module, which realizes the function of continuously testing the optical communication module, adopts mechanical automatic test during the test period, has higher automation degree, effectively reduces the consumption of manpower, improves the test precision and the test efficiency, realizes the function of fixing equipment to be tested, can automatically pull out a communication plug from the equipment to be tested after the test is finished, and reduces the cost because the communication plug and a fixing mechanism share one electric cylinder, and can carry out code spraying and marking on an unlighted indicator lamp through a code spraying mechanism, so that a subsequent maintenance personnel can quickly know the fault position, and the maintenance efficiency is improved.
Description
Technical Field
The invention relates to the technical field of optical communication, in particular to a test method of an optical communication module.
Background
The switch is a high-speed network transmission relay device, and due to the transmission advantages of the optical fibers, the speed is high, the anti-interference capability is high, and the like, the information transmission between the switches is more stable and faster, and the current main mode for realizing interconnection between the switches is realized through the optical transceiver module.
At present, after the switch is produced, the optical module communication of the switch needs to be tested, but the existing testing mode is a semi-automatic mode, still needs manual work for fixing, and the processes such as plugging and unplugging cannot be continuously tested, so that the manpower resource is greatly consumed.
Disclosure of Invention
The present invention is directed to a method for testing an optical communication module, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an optical communication module testing method comprises the following steps:
s1, detecting the communication ports of the standard test source one by one to ensure the normal function of the communication ports;
s2, starting the intelligent controller to check the upper conveying motor, the electric cylinder, the pressure sensor, the proximity sensor and the camera of the conveying belt so as to ensure that the equipment works normally;
s3, a central processing unit in the intelligent controller controls the transmission motor to start, and then the equipment to be tested on the transmission belt is transmitted to the test area in the shell;
s4, when the proximity sensor senses that the equipment to be tested reaches the testing position, the central processing unit controls the conveying motor to stop;
s5, the central processing unit controls the electric cylinder to extend, so that the fixing mechanism is driven to fix the equipment to be tested on the conveyor belt, when the pressure value sensed by the pressure sensor reaches a preset value, the central processing unit controls the electric cylinder to stop, and at the moment, the communication plug is inserted into the port of the equipment to be tested;
s6, the central processing unit controls the camera to take a picture, the picture is transmitted to the information analysis processing module through the A/D conversion module to be analyzed and compared, whether the indicator light of the corresponding port is lightened is judged, if the indicator light of the test port is lightened completely, the central processing unit controls the telescopic rod of the electric cylinder to retract, the central processing unit controls the transmission motor to start, the tested equipment is moved out of the test area, if the indicator light of the test port is not lightened completely, the central processing unit controls the alarm to give an alarm to remind a worker, the central processing unit controls the telescopic rod of the electric cylinder to retract, then the central processing unit controls the transmission motor to start, the tested equipment is moved out of the test area, and the detection is completed at the time;
and S7, repeating the test steps from S3 to S6 to complete all tests.
By adopting the technical scheme, the function of continuously testing the optical communication module is realized, mechanical automatic testing is adopted in the testing period, the automation degree is higher, the manpower consumption is effectively reduced, and the testing precision and the testing efficiency are improved.
Preferably, the fixing mechanism in the step S5 includes a transverse plate, a spring, an insertion rod and two sleeves, one side of the transverse plate is fixedly installed at the end of the electric cylinder telescopic rod, the two sleeves are respectively fixed at two ends of one side of the transverse plate, the insertion rod is movably inserted in the sleeves, the spring is arranged in the sleeves, one end of the spring abuts against the side surface of the transverse plate, the other end of the spring abuts against one end of the insertion rod, a limiting sliding groove is formed in the outer wall of each sleeve, a limiting block is fixedly connected to the outer wall of one end of each insertion rod, and the limiting block is slidably installed in the limiting sliding groove.
Through adopting above-mentioned technical scheme, through diaphragm, spring, inserted bar cooperation sleeve pipe, both realized the function of fixed equipment to be tested, but also can be automatic extract communication plug from equipment to be tested.
Preferably, a rubber pad is fixedly mounted at one end of the inserted rod far away from the limiting block, and the pressure sensor is fixedly mounted on the side face of the rubber pad.
Through adopting above-mentioned technical scheme, through installation rubber pad, effectively avoid the phenomenon of fish tail equipment to be measured to take place.
Preferably, one side of the transverse plate is fixedly connected with a connecting rod, the end part of the connecting rod is fixedly connected with a supporting plate, the communication plug is fixedly installed on one side of the supporting plate, and the communication plug is electrically connected with the standard test source through an optical fiber communication line.
Through adopting above-mentioned technical scheme, through sharing an electric jar with communication plug and fixed establishment, reduce the space that occupies on the one hand, its two reduce cost.
Preferably, in step S3 the inside fixed mounting of casing has a yard mechanism, a yard mechanism includes driving motor, horizontal pole, electric putter and code spraying device, horizontal pole fixed mounting be in the inside top of casing, the spill spout has been seted up to the bottom of horizontal pole, the inside slidable mounting of spill spout has convex slider, convex slider 'S bottom with electric putter' S mount pad fixed connection, code spraying device 'S shower nozzle fixed mounting be in the tip of electric putter telescopic link, driving motor fixed mounting be in the inside top of casing, driving motor' S pivot fixedly connected with lead screw, the one end screw thread of lead screw runs through the upper end of convex slider is passed through the bearing and is rotated the installation and be in the tip of spill spout.
Through adopting above-mentioned technical scheme, if the pilot lamp of test port is not all lighted, open driving motor and rotate, and then move electric putter to not lighting the pilot lamp directly over, then control electric putter extension, rethread control code spraying device does not light and marks on the pilot lamp to the maintenance work of subsequence.
Preferably, the surface of the intelligent controller in the step S2 is fixedly connected with a power on/off button, a touch display screen is fixedly embedded on the surface of the intelligent controller, and the touch display screen of the intelligent controller is electrically connected with the central processing unit.
By adopting the technical scheme, the related parameters can be conveniently set through the touch display screen.
Preferably, the lower ends of two opposite side surfaces of the shell are respectively provided with an inlet and an outlet, and shading cloth curtains are fixedly arranged inside the inlet and inside the outlet.
Through adopting above-mentioned technical scheme, through setting up shading curtain cloth, effectively prevent the influence of external light to the camera, guarantee to shoot the quality.
Preferably, the camera is fixedly mounted on the top of the interior of the housing.
By adopting the technical scheme, the camera can clearly shoot the full appearance of the equipment to be tested.
Preferably, the signal output end of the central processing unit is electrically connected with the electric control end of the electric push rod, the electric control end of the driving motor and the electric control end of the code spraying device respectively.
By adopting the technical scheme, the code spraying mechanism is convenient to control through the central processing unit.
Preferably, the proximity sensor in step S4 is fixedly connected to an inner side wall of the conveyor belt.
By adopting the technical scheme, the position of the equipment to be measured can be accurately measured, and the equipment to be measured can be accurately fixed by the fixing mechanism.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the function of continuously testing the optical communication module is realized by matching the transmission motor, the electric cylinder, the proximity sensor and the communication plug with the intelligent controller, the automation degree is higher, the manpower consumption is effectively reduced, and the testing precision and the testing efficiency are improved.
2. According to the invention, the transverse plate, the spring and the inserted rod are matched with the sleeve, so that the function of fixing the equipment to be tested is realized, the communication plug can be automatically pulled out of the equipment to be tested after the test is finished, the communication plug and the fixing mechanism share one electric cylinder, and the cost is reduced.
3. According to the invention, code spraying and marking can be carried out on the unlighted indicator lamp through the code spraying mechanism, so that subsequent maintenance personnel can quickly know the fault position, and the maintenance efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of a conveyor belt according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a housing according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a camera according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an electric cylinder according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a fixing mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a lead screw according to an embodiment of the present invention;
FIG. 7 is an exploded view of a securing mechanism according to an embodiment of the present invention;
FIG. 8 is an enlarged view of portion A of FIG. 7;
fig. 9 is a schematic block diagram of a circuit according to an embodiment of the present invention.
In the figure: 1. a conveyor belt; 2. a limiting chute; 3. a transfer motor; 4. an optical fiber communication line; 5. a housing; 6. an intelligent controller; 7. a power-on and power-off button; 8. a touch display screen; 9. an alarm; 10. a limiting block; 11. an electric cylinder; 12. a transverse plate; 13. a camera; 14. a code spraying device; 15. an electric push rod; 16. a drive motor; 17. a cross bar; 18. a spring; 19. inserting a rod; 20. a sleeve; 21. a rubber pad; 22. a pressure sensor; 23. a support plate; 24. a communication plug; 25. a connecting rod; 26. a male slider; 27. a bearing; 28. a screw rod; 29. a device to be tested; 30. a proximity sensor; 31. a concave chute; 32. an inlet; 33. a shade cloth curtain; 34. an outlet; 35. a central processing unit; 36. an A/D conversion module; 37. an information analysis processing module; 38. a standard test source.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 9, the present invention provides a technical solution:
an optical communication module testing method comprises the following steps:
s1, detecting the communication ports of the standard test source 38 one by one to ensure the normal functions of the communication ports;
s2, starting the intelligent controller 6 to check the upper conveying motor 3, the electric cylinder 11, the pressure sensor 22, the proximity sensor 30 and the camera 13 of the conveying belt 1 so as to ensure that the equipment works normally;
s3, the central processing unit 35 in the intelligent controller 6 controls the transmission motor 3 to start, and then the device to be tested 29 on the transmission belt 1 is transmitted to the test area in the shell 5;
s4, when the proximity sensor 30 senses that the device to be tested 29 reaches the testing position, the central processing unit 35 controls the conveying motor 3 to stop;
s5, the central processing unit 35 controls the electric cylinder 11 to extend, and further drives the fixing mechanism to fix the device to be tested 29 on the conveyor belt 1, when the pressure value sensed by the pressure sensor 22 reaches a preset value, the central processing unit 35 controls the electric cylinder 11 to stop, and at this time, the communication plug 24 is inserted into the port of the device to be tested 29;
s6, the central processing unit 35 controls the camera 13 to take a picture, the picture is transmitted to the information analysis processing module 37 through the A/D conversion module 36 to be analyzed and compared, whether the indicator light of the corresponding port is lightened is judged, if the indicator light of the test port is lightened completely, the central processing unit 35 controls the telescopic rod of the electric cylinder 11 to retract, the central processing unit 35 controls the transmission motor 3 to start, the tested equipment is moved out of the test area, if the indicator light of the test port is not lightened completely, the central processing unit 35 controls the alarm 9 to give an alarm to remind a worker, the central processing unit 35 controls the telescopic rod of the electric cylinder 11 to retract, then the central processing unit 35 controls the transmission motor 3 to start, the tested equipment is moved out of the test area, and the detection is completed at one time;
and S7, repeating the test steps from S3 to S6 to complete all tests.
As shown in fig. 5, 7 and 8, in order to realize the function of fixing the device to be tested 29 and simultaneously automatically pull out the communication plug 24 from the device to be tested 29, the fixing mechanism in step S5 includes a horizontal plate 12, a spring 18, an insertion rod 19 and a sleeve 20, one side of the horizontal plate 12 is fixedly installed at the end of the telescopic rod of the electric cylinder 11, two sleeve 20 are provided, two sleeve 20 are respectively fixed at two ends of one side of the horizontal plate 12, the insertion rod 19 is movably inserted in the sleeve 20, the spring 18 is arranged in the sleeve 20, one end of the spring 18 abuts against the side of the horizontal plate 12, the other end of the spring 18 abuts against one end of the insertion rod 19, the outer wall of the sleeve 20 is provided with a limiting chute 2, the outer wall of one end of the insertion rod 19 is fixedly connected with a limiting block 10, the limiting block 10 is slidably installed in the limiting chute 2, one side of the, the end of the connecting rod 25 is fixedly connected with a supporting plate 23, a communication plug 24 is fixedly arranged at one side of the supporting plate 23, and the communication plug 24 is electrically connected with a standard test source 38 through an optical fiber communication line 4.
As shown in FIG. 7, in order to avoid scratching the device under test 29, a rubber pad 21 is fixedly mounted at one end of the insertion rod 19 away from the stopper 10, and the pressure sensor 22 is fixedly mounted at the side of the rubber pad 21.
As shown in fig. 1, 3, 6 and 9, in order to quickly locate a fault position when a fault device is repaired, a code spraying mechanism is fixedly installed inside the housing 5 in step S3, the code spraying mechanism includes a driving motor 16, a cross rod 17, an electric push rod 15 and a code spraying device 14, the cross rod 17 is fixedly installed at the top inside the housing 5, a concave sliding slot 31 is opened at the bottom of the cross rod 17, a convex sliding block 26 is slidably installed inside the concave sliding slot 31, the bottom of the convex sliding block 26 is fixedly connected with an installation seat of the electric push rod 15, a nozzle of the code spraying device 14 is fixedly installed at the end of an expansion link of the electric push rod 15, the driving motor 16 is fixedly installed at the top inside the housing 5, a screw 28 is fixedly connected to a rotating shaft of the driving motor 16, one end of the screw 28 penetrates through the upper end of the convex sliding block 26 and is rotatably installed at the end of the concave sliding slot 31 through a bearing 27, The electric control end of the driving motor 16 is electrically connected with the electric control end of the code spraying device 14.
As shown in fig. 1 and 9, in order to facilitate setting of the relevant parameters, the surface of the intelligent controller 6 in step S2 is fixedly connected with the power on/off button 7, the surface of the intelligent controller 6 is fixedly embedded with the touch display screen 8, and the touch display screen 8 of the intelligent controller 6 is electrically connected with the central processing unit 35.
As shown in fig. 1 and 2, in order to ensure the shooting quality and prevent the influence of external light on the camera 13, the lower ends of two opposite side surfaces of the housing 5 are respectively provided with an inlet 32 and an outlet 34, the inside of the inlet 32 and the inside of the outlet 34 are both fixedly provided with a shading cloth curtain 33, and the camera 13 is fixedly arranged at the top inside the housing 5.
As shown in fig. 2, the proximity sensor 30 in step S4 is fixedly attached to the inner side wall of the conveyor belt 1 in order to ensure that the fixing mechanism can accurately fix the device under test 29.
The parts not involved in the present invention are the same as or can be implemented by the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An optical communication module testing method is characterized by comprising the following steps:
s1, detecting the communication ports of the standard test source (38) one by one to ensure the normal functions of the communication ports;
s2, starting the intelligent controller (6) to check the upper conveying motor (3), the electric cylinder (11), the pressure sensor (22), the proximity sensor (30) and the camera (13) of the conveying belt (1) so as to ensure normal operation of the equipment;
s3, a central processing unit (35) in the intelligent controller (6) controls the transmission motor (3) to start, and then the equipment to be tested (29) on the transmission belt (1) is transmitted to a test area in the shell (5);
s4, when the proximity sensor (30) senses that the equipment to be tested (29) reaches the testing position, the central processing unit (35) controls the conveying motor (3) to stop;
s5, the central processing unit (35) controls the electric cylinder (11) to extend, so that the fixing mechanism is driven to fix the equipment to be tested (29) on the conveyor belt (1), when the pressure value sensed by the pressure sensor (22) reaches a preset value, the central processing unit (35) controls the electric cylinder (11) to stop, and at the moment, the communication plug (24) is inserted into a port of the equipment to be tested (29);
s6, a central processing unit (35) controls a camera (13) to take a picture, the picture is transmitted to an information analysis processing module (37) through an A/D conversion module (36) to be analyzed and compared, whether indicator lamps of corresponding ports are lightened or not is judged, if the indicator lamps of the testing ports are all lightened, the central processing unit (35) controls an expansion link of an electric cylinder (11) to retract, the central processing unit (35) controls a transmission motor (3) to start, tested equipment is moved out of a testing area, if the indicator lamps of the testing ports are not all lightened, the central processing unit (35) controls an alarm (9) to give an alarm to remind a worker, the central processing unit (35) controls an expansion link of the electric cylinder (11) to retract, then the central processing unit (35) controls the transmission motor (3) to start, the tested equipment is moved out of the testing area, and the detection is completed at one time;
and S7, repeating the test steps from S3 to S6 to complete all tests.
2. The optical communication module testing method according to claim 1, wherein: the fixing mechanism in the step S5 comprises a transverse plate (12), a spring (18), an insertion rod (19) and a sleeve (20), one side of the transverse plate (12) is fixedly arranged at the end part of the telescopic rod of the electric cylinder (11), two sleeves (20) are arranged, the two sleeves (20) are respectively fixed at two ends of one side of the transverse plate (12), an inserted rod (19) is movably inserted in the sleeve (20), the spring (18) is arranged in the sleeve (20), one end of the spring (18) is abutted against the lateral surface of the transverse plate (12), the other end of the spring (18) is abutted against one end part of the inserted rod (19), the outer wall of the sleeve (20) is provided with a limiting sliding groove (2), the outer wall of one end of the inserted link (19) is fixedly connected with a limiting block (10), the limiting block (10) is slidably mounted inside the limiting sliding groove (2).
3. The optical communication module testing method according to claim 2, wherein: the end part of one end, far away from the limiting block (10), of the inserted rod (19) is fixedly provided with a rubber pad (21), and the pressure sensor (22) is fixedly arranged on the side surface of the rubber pad (21).
4. The optical communication module testing method according to claim 2, wherein: one side fixedly connected with connecting rod (25) of diaphragm (12), the tip fixedly connected with backup pad (23) of connecting rod (25), communication plug (24) fixed mounting in one side of backup pad (23), communication plug (24) through optic fibre communication line (4) with standard test source (38) electric connection.
5. The optical communication module testing method according to claim 1, wherein: step S3 the inside fixed mounting of casing (5) has a yard mechanism, the yard mechanism includes driving motor (16), horizontal pole (17), electric putter (15) and spouts a yard ware (14), horizontal pole (17) fixed mounting be in the inside top of casing (5), spill spout (31) have been seted up to the bottom of horizontal pole (17), the inside slidable mounting of spill spout (31) has convex slider (26), the bottom of convex slider (26) with the mount pad fixed connection of electric putter (15), the shower nozzle fixed mounting of sign indicating number ware (14) be in the tip of electric putter (15) telescopic link, driving motor (16) fixed mounting be in the inside top of casing (5), the pivot fixedly connected with lead screw (28) of driving motor (16), the one end screw of lead screw (28) runs through the upper end of convex slider (26) is rotated through bearing (27) and is installed concave slider' S (26) upper end the concave spout is installed The end of the shaped chute (31).
6. The optical communication module testing method according to claim 1, wherein: step S2 the fixed surface of intelligent control ware (6) is connected with switch on/off button (7), the surface of intelligent control ware (6) is inlayed and is fixed with touch display screen (8), intelligent control ware (6) touch display screen (8) with central processing unit (35) electric connection.
7. The optical communication module testing method according to claim 6, wherein: the lower ends of two opposite side surfaces of the shell (5) are respectively provided with an inlet (32) and an outlet (34), and shading cloth curtains (33) are fixedly arranged in the inlet (32) and the outlet (34).
8. The optical communication module testing method according to claim 7, wherein: the camera (13) is fixedly arranged at the top of the interior of the shell (5).
9. The optical communication module testing method according to claim 5, wherein: and the signal output end of the central processing unit (35) is electrically connected with the electric control end of the electric push rod (15), the electric control end of the driving motor (16) and the electric control end of the code spraying device (14) respectively.
10. The optical communication module testing method according to claim 1, wherein: the proximity sensor (30) in the step S4 is fixedly connected to the inner side wall of the conveyor belt (1).
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| CN202110409409.9A CN113131999A (en) | 2021-04-16 | 2021-04-16 | Optical communication module testing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114050876A (en) * | 2021-10-29 | 2022-02-15 | 国网辽宁省电力有限公司丹东供电公司 | Method and device for testing communication equipment |
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