CN112161780A - Fault positioning device for optical cable connector box - Google Patents
Fault positioning device for optical cable connector box Download PDFInfo
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- CN112161780A CN112161780A CN202010939619.4A CN202010939619A CN112161780A CN 112161780 A CN112161780 A CN 112161780A CN 202010939619 A CN202010939619 A CN 202010939619A CN 112161780 A CN112161780 A CN 112161780A
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- module
- optical cable
- joint box
- circuit board
- control circuit
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- 230000003287 optical effect Effects 0.000 title claims abstract description 61
- 230000010365 information processing Effects 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 238000012423 maintenance Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013024 troubleshooting Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses a fault positioning device for an optical cable connector box, which comprises: an optical cable splice closure; the optical cable joint box comprises an optical cable joint box shell and a joint box internal fiber coiling box, and the joint box internal fiber coiling box is fixedly arranged in the optical cable joint box shell; a fault locating device housing; a control circuit board; the information processing module is used for analyzing and processing the data output by each module; an information acquisition unit; a wireless transmission module; a PC terminal; the invention has the advantages of small size, convenient installation, reasonable design, suitability for various communication optical cable joint boxes, high measurement precision, rapid response time, capability of making corresponding and network performance overview within the specified time when the external environment changes, and capability of controlling the operation condition of the communication network optical cable joint box in real time by the monitoring platform.
Description
Technical Field
The invention relates to the technical field of power communication and other communication industries, in particular to a fault positioning device for an optical cable joint box.
Background
The optical cable joint box is used for connecting two or more optical cables together, is provided with a connecting part of a protection component, is necessary to be adopted in optical cable line engineering construction and is one of very important equipment, the quality of the optical cable joint box directly influences the quality of an optical cable line and the service life of the optical cable line, different electric power communication optical cable sections are mainly connected through the optical cable joint box at present, and due to the fact that the joint box is large in quantity, the operation and maintenance mode of the communication optical cable joint box of China network Zibo power supply company mainly adopts a method of regularly patrolling by personnel.
However, the conventional optical cable splice closure cannot realize all-directional monitoring, and in most cases, only when the splice closure fails, operation and maintenance personnel receive the notification of the dispatching monitoring personnel, but cannot judge the fault position and reason of the splice closure, and have to perform line troubleshooting in a human-sea mode, so that a lot of time and manpower are consumed, the operation and maintenance repair work is extremely passive, and if the faulty optical cable carries important production services such as power line protection, stability and the like, the fault optical cable cannot be recovered for a long time, and certain safety risk is brought to a power grid.
Disclosure of Invention
The invention aims to provide a fault positioning device for an optical cable joint box, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: optical cable splice closure fault locating device includes:
an optical cable splice closure; the optical cable joint box comprises an optical cable joint box shell and a joint box internal fiber coiling box, and the joint box internal fiber coiling box is fixedly arranged in the optical cable joint box shell;
a fault locating device housing;
a control circuit board;
the information processing module is used for analyzing and processing the data output by each module;
an information acquisition unit;
a wireless transmission module;
a PC terminal;
the shell of the fault positioning device is fixedly arranged on one side of the optical cable connector box, the control circuit board is fixedly arranged in the shell of the fault positioning device through screws, and the information processing module and the wireless transmission module are fixedly arranged on the control circuit board;
the information processing module is electrically connected with the wireless transmission module, and the information processing module is in wireless communication connection with the PC terminal through the wireless transmission module.
Preferably, the method further comprises the following steps:
the temperature and humidity sensor is used for monitoring various parameter states in the optical cable joint box in real time and collecting state information in the optical cable joint box in time;
the temperature and humidity sensor is fixedly arranged inside the optical cable connector box through screws;
the temperature and humidity sensor is electrically connected with the information processing module through a sensor connecting wire.
Preferably, the outside fixed mounting of optical cable splice box has the steel to fix the ribbon, steel is fixed ribbon outer wall fixed surface and is installed the metal and is fixed detain, metal is fixed detains one end fixed mounting in fault locating device shell outer wall surface.
Preferably, an antenna is welded at one end of the control circuit board, and one end of the antenna penetrates through the side wall of the shell of the fault location device and extends to the outside of the shell of the fault location device.
Preferably, the method further comprises the following steps:
a power supply module;
the power supply module is fixedly arranged on the control circuit board;
and the power supply module is electrically connected with the control circuit board.
Preferably, the method further comprises the following steps:
an interface;
a pin;
the interface and the pins are fixedly arranged on the control circuit board.
Preferably, one end of the control circuit board is fixedly provided with an SIM card slot, and an SIM card is clamped and connected in the SIM card slot;
and the SIM card slot is electrically connected with the wireless transmission module.
Preferably, the information acquisition unit includes:
the capacitor module can provide the electric quantity of the control circuit board and is used for detecting the electric quantity value of the control circuit board;
a leveling module for monitoring an inclination of the cable closure;
the photoresistor module is used for monitoring the illumination intensity of the optical cable joint box;
a positioning module for accurately positioning a geographic location of the cable closure;
the capacitance module, the horizontal measurement module, the photoresistor module and the positioning module are all fixedly arranged on the control circuit board;
the capacitance module, the horizontal measurement module, the photoresistor module and the positioning module are electrically connected with the information processing module respectively.
Preferably, the PC terminal is a smart phone or a computer.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention has the advantages of small size, convenient installation and reasonable design, and is suitable for various communication optical cable joint boxes.
2. The invention has low power consumption of various modules in operation, can automatically supply power by depending on internal large-capacity batteries, does not need to obtain electric energy from the outside, and can ensure that the device can normally operate for more than 5 years.
3. The invention has good waterproof and antifouling performance, and the waterproof effect can reach IP67 level waterproof.
4. The invention has high measurement precision, and various sensors can completely meet the working requirement of joint box monitoring.
5. The invention has quick response time, and when the external environment changes, various sensors can make corresponding response within the specified time.
6. The invention can be used for network performance overview, and the monitoring platform can control the operation condition of the optical cable joint box of the communication network in real time.
7. The invention can push the alarm in real time, and the mobile phone of the operation and maintenance personnel can receive the real-time push of the alarm, thereby improving the optical cable rush-repair efficiency.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of a control circuit board according to the present invention;
fig. 3 is a schematic diagram of a component frame structure according to the present invention.
In the figure: 10-a cable closure; 11-cable closure housing; 12-splice closure internal coiling box; 20-fault locating device housing; 30-a control circuit board; 31-an information processing module; 32-a capacitive module; 33-an interface; 34-a level measurement module; 35-a photoresistor module; 36-a SIM card slot; 37-a wireless transmission module; 38-a positioning module; 39-pin; 40-an antenna; 50-metal fixing buckle; 51-steel securing ties; 60-a power supply module; 70-a temperature and humidity sensor; 71-sensor connection lines; 80-PC terminal.
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.
Example 1:
referring to fig. 1-3, the present invention provides a technical solution: optical cable splice closure fault locating device includes: the optical cable joint box 10, the fault location device shell 20, the control circuit board 30, the information processing module 31, the information acquisition unit, the wireless transmission module 37 and the PC terminal 80.
Further, the information processing module 31 is configured to analyze and process data output by each module.
Further, the model of the information processing module 31 is Siemens S7-300.
Further, SV6500 of the wireless transmission module 37.
The optical cable joint box 10 comprises an optical cable joint box shell 11 and a joint box internal fiber coiling box 12, and the joint box internal fiber coiling box 12 is fixedly installed inside the optical cable joint box shell 11.
The fault location device housing 20 is fixedly mounted on one side of the optical cable joint box 10, the control circuit board 30 is fixedly mounted inside the fault location device housing 20 through screws, and the information processing module 31 and the wireless transmission module 37 are fixedly mounted on the control circuit board 30.
The information processing module 31 is electrically connected to the wireless transmission module 37, and the information processing module 31 is connected to the PC terminal 80 through wireless communication via the wireless transmission module 37.
Wherein, still include: and a temperature and humidity sensor 70.
Further, the temperature and humidity sensor 70 is configured to monitor various parameter states inside the optical cable joint box 10 in real time, and timely collect state information inside the optical cable joint box 10.
Further, the type of the temperature and humidity sensor 70 is GWSD 100/100.
The temperature and humidity sensor 70 is fixedly mounted inside the optical cable joint box 10 through screws.
The temperature and humidity sensor 70 is electrically connected to the information processing module 31 through a sensor connection line 71.
Wherein, the outside fixed mounting of optical cable splice box 10 has steel fixing bandage 51, steel fixing bandage 51 outer wall fixed surface installs metal fixing buckle 50, metal fixing buckle 50 one end fixed mounting is in fault locating device shell 20 outer wall surface.
Further, the steel securing ties 51 enable a secure connection between the fault locating device housing 20 and the cable closure 10.
Wherein, an antenna 40 is welded at one end of the control circuit board 30, and one end of the antenna 40 penetrates through the side wall of the fault location device housing 20 and extends to the outside of the fault location device housing 20.
Wherein, still include: a power supply module 60.
In this embodiment, the power supply module 60 is preferably a large-capacity battery.
Further, the power supply module 60 is used for providing power output for the device, and the device can be ensured to normally operate for more than 5 years without acquiring power from the outside.
The power supply module 60 is fixedly mounted on the control circuit board 30.
The power supply module 60 is electrically connected to the control circuit board 30.
Wherein, still include: interface 33 and pins 39.
Further, each module is connected to the interface 33 by pins 39.
The interface 33 and the pins 39 are both fixedly mounted on the control circuit board 30.
A SIM card slot 36 is fixedly installed at one end of the control circuit board 30, and a SIM card is connected to the inside of the SIM card slot 36 in a clamping manner.
The SIM card slot 36 is electrically connected to the wireless transmission module 37.
The PC terminal 80 is a smart phone or a computer.
By integrating the above embodiments, the internal high-capacity battery is used for autonomous power supply, various parameters of the joint box are monitored by using various sensors, and the real-time state of the joint box is transmitted to the monitoring platform and the mobile phone client through the narrowband internet of things NB-IoT technology, so that the joint box is monitored in real time.
Example 2:
referring to fig. 1-3, the present invention provides a technical solution: optical cable splice closure fault locating device includes: the optical cable joint box 10, the fault location device shell 20, the control circuit board 30, the information processing module 31, the information acquisition unit, the wireless transmission module 37 and the PC terminal 80.
Wherein, the information acquisition unit includes: a capacitance module 32, a level measurement module 34, a photoresistor module 35, and a positioning module 38.
Further, the capacitance module 32 can provide the power of the control circuit board 30 and is used for detecting the power value of the control circuit board 30.
Further, the level measurement module 34 is used to monitor the inclination of the cable closure 10.
In this embodiment, the model of the leveling module 34 is ADNS-3080.
Further, the photoresistor module 35 is used for monitoring the illumination intensity of the optical cable joint box 10.
In this embodiment, the model of the photo-resistor module 35 is KY-018.
Further, the location module 38 is configured to accurately locate the geographic location of the cable closure 10.
In this embodiment, the model of the positioning module 38 is specifically NEO-7M.
The capacitance module 32, the level measurement module 34, the photoresistor module 35 and the positioning module 38 are all fixedly mounted on the control circuit board 30.
The capacitance module 32, the level measurement module 34, the photoresistor module 35 and the positioning module 38 are electrically connected to the information processing module 31, respectively.
By integrating the above embodiments, when the optical cable joint box is abnormal in operation state or is damaged by external force to cause a fault, the information acquisition unit can acquire various parameters of the optical cable joint box 10 in time, then transmit the acquired parameter information to the information processing module 31 for processing and analysis, and then transmit the data information to the mobile phone of the operation and maintenance personnel through the wireless transmission module 37, and can send an alarm in time, so that the operation and maintenance personnel can accurately position, the time for troubleshooting and rush-repair of optical cable faults is greatly shortened, the stable operation of important services such as protection and stability of power lines is ensured, and the safety risk of a power grid is reduced.
In the several embodiments provided in the present invention, it should be understood that the disclosed apparatus may be implemented in other ways. The welding or screwing or winding of the parts to be welded or screwed together as shown or discussed can be assisted by means of devices such as welding torches, screwing with wrenches, etc., and the parts of the device can be made of various materials, such as metal materials, for example, aluminum alloys, steel and copper, by casting or by mechanical stamping.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. Optical cable splice closure fault locating device which characterized in that includes:
a cable closure (10); the optical cable joint box (10) comprises an optical cable joint box shell (11) and a joint box internal fiber coiling box (12), wherein the joint box internal fiber coiling box (12) is fixedly arranged in the optical cable joint box shell (11);
a fault locating device housing (20);
a control circuit board (30);
the information processing module (31), the said information processing module (31) is used for carrying on the analysis processing to the data that each module outputs;
an information acquisition unit;
a wireless transmission module (37);
a PC terminal (80);
the fault positioning device comprises a fault positioning device shell (20), a control circuit board (30), an information processing module (31) and a wireless transmission module (37), wherein the fault positioning device shell (20) is fixedly installed on one side of an optical cable joint box (10), the control circuit board (30) is fixedly installed in the fault positioning device shell (20) through screws, and the information processing module and the wireless transmission module (37) are fixedly installed on the control circuit board (30);
the information processing module (31) is electrically connected with the wireless transmission module (37), and the information processing module (31) is in wireless communication connection with the PC terminal (80) through the wireless transmission module (37).
2. The cable closure fault locating device of claim 1, further comprising:
the temperature and humidity sensor (70), the temperature and humidity sensor (70) is used for monitoring various parameter states in the optical cable joint box (10) in real time and collecting state information in the optical cable joint box (10) in time;
the temperature and humidity sensor (70) is fixedly arranged inside the optical cable joint box (10) through screws;
the temperature and humidity sensor (70) is electrically connected with the information processing module (31) through a sensor connecting wire (71).
3. A cable closure fault locating device as claimed in claim 1, wherein: the cable joint box (10) is fixed with steel fixing cable tie (51) in the outside, steel fixing cable tie (51) outer wall fixed surface installs metal fixing buckle (50), metal fixing buckle (50) one end fixed mounting is in fault locating device shell (20) outer wall surface.
4. A cable closure fault locating device as claimed in claim 1, wherein: an antenna (40) is welded at one end of the control circuit board (30), and one end of the antenna (40) penetrates through the side wall of the fault location device shell (20) and extends to the outside of the fault location device shell (20).
5. A cable closure fault locating device as claimed in claim 1, wherein: further comprising:
a power supply module (60);
the power supply module (60) is fixedly arranged on the control circuit board (30);
the power supply module (60) is electrically connected with the control circuit board (30).
6. A cable closure fault locating device as claimed in claim 1, wherein: further comprising:
an interface (33);
a pin (39);
the interface (33) and the pins (39) are fixedly arranged on the control circuit board (30).
7. A cable closure fault locating device as claimed in claim 1, wherein: an SIM card slot (36) is fixedly installed at one end of the control circuit board (30), and an SIM card is connected in the SIM card slot (36) in a clamping manner;
the SIM card slot (36) is electrically connected with the wireless transmission module (37).
8. A cable closure fault locating device as claimed in claim 1, wherein: the information acquisition unit includes:
the capacitor module (32), the capacitor module (32) can provide the electric quantity of the control circuit board (30) and is used for detecting the electric quantity value of the control circuit board (30);
a levelling module (34), the levelling module (34) being for monitoring the inclination of the cable closure (10);
a photoresistor module (35), the photoresistor module (35) being configured to monitor an illumination intensity of the cable closure (10);
a positioning module (38), the positioning module (38) being configured to accurately position a geographic location of the cable closure (10);
the capacitance module (32), the horizontal measurement module (34), the photoresistor module (35) and the positioning module (38) are all fixedly mounted on the control circuit board (30);
the capacitance module (32), the horizontal measurement module (34), the photoresistance module (35) and the positioning module (38) are electrically connected with the information processing module (31) respectively.
9. A cable closure fault locating device as claimed in claim 1, wherein: the PC terminal (80) is a smart phone or a computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010939619.4A CN112161780A (en) | 2020-09-09 | 2020-09-09 | Fault positioning device for optical cable connector box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010939619.4A CN112161780A (en) | 2020-09-09 | 2020-09-09 | Fault positioning device for optical cable connector box |
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| Publication Number | Publication Date |
|---|---|
| CN112161780A true CN112161780A (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010939619.4A Pending CN112161780A (en) | 2020-09-09 | 2020-09-09 | Fault positioning device for optical cable connector box |
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| Country | Link |
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| CN (1) | CN112161780A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114397735A (en) * | 2021-12-29 | 2022-04-26 | 国网河北省电力有限公司信息通信分公司 | An Intelligent Optical Cable Splice Box Supporting Status Awareness |
| CN115774306A (en) * | 2023-02-13 | 2023-03-10 | 珩星电子（连云港）股份有限公司 | Gym optical cable connector with multi-end induction feedback function |
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| DE10223881A1 (en) * | 2002-05-29 | 2003-12-11 | Glt Components Gmbh | Connector box for fiber optic light guide cables has a splicing adapter to join fiber glass in a glass fiber bundle guided with a cable into the connector box |
| CN205942028U (en) * | 2016-08-24 | 2017-02-08 | 国网河南省电力公司南阳供电公司 | Intelligence fiber cable joint box |
| CN206960737U (en) * | 2017-03-24 | 2018-02-02 | 中国南方电网有限责任公司超高压输电公司贵阳局 | A kind of cable splice closure sealing monitoring system |
| CN108919451A (en) * | 2018-09-17 | 2018-11-30 | 北京中电普华信息技术有限公司 | A kind of OPGW connector box and alarm method |
| CN210154622U (en) * | 2019-08-01 | 2020-03-17 | 云南电网有限责任公司红河供电局 | Electric power optical cable splice box environmental monitoring and integrative device of dehumidification |
| CN111025505A (en) * | 2019-12-30 | 2020-04-17 | 国网山东省电力公司淄博供电公司 | A power optical cable splice box monitoring device |
-
2020
- 2020-09-09 CN CN202010939619.4A patent/CN112161780A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10223881A1 (en) * | 2002-05-29 | 2003-12-11 | Glt Components Gmbh | Connector box for fiber optic light guide cables has a splicing adapter to join fiber glass in a glass fiber bundle guided with a cable into the connector box |
| CN205942028U (en) * | 2016-08-24 | 2017-02-08 | 国网河南省电力公司南阳供电公司 | Intelligence fiber cable joint box |
| CN206960737U (en) * | 2017-03-24 | 2018-02-02 | 中国南方电网有限责任公司超高压输电公司贵阳局 | A kind of cable splice closure sealing monitoring system |
| CN108919451A (en) * | 2018-09-17 | 2018-11-30 | 北京中电普华信息技术有限公司 | A kind of OPGW connector box and alarm method |
| CN210154622U (en) * | 2019-08-01 | 2020-03-17 | 云南电网有限责任公司红河供电局 | Electric power optical cable splice box environmental monitoring and integrative device of dehumidification |
| CN111025505A (en) * | 2019-12-30 | 2020-04-17 | 国网山东省电力公司淄博供电公司 | A power optical cable splice box monitoring device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114397735A (en) * | 2021-12-29 | 2022-04-26 | 国网河北省电力有限公司信息通信分公司 | An Intelligent Optical Cable Splice Box Supporting Status Awareness |
| CN115774306A (en) * | 2023-02-13 | 2023-03-10 | 珩星电子（连云港）股份有限公司 | Gym optical cable connector with multi-end induction feedback function |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210101 |