CN111403965B - Power supply system and power supply method - Google Patents
Power supply system and power supply method Download PDFInfo
- Publication number
- CN111403965B CN111403965B CN201811521250.4A CN201811521250A CN111403965B CN 111403965 B CN111403965 B CN 111403965B CN 201811521250 A CN201811521250 A CN 201811521250A CN 111403965 B CN111403965 B CN 111403965B
- Authority
- CN
- China
- Prior art keywords
- power supply
- power
- supply circuit
- photoelectric composite
- magnetic field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
-
- 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
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/6608—Structural association with built-in electrical component with built-in single component
- H01R13/6633—Structural association with built-in electrical component with built-in single component with inductive component, e.g. transformer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6666—Structural association with built-in electrical component with built-in electronic circuit with built-in overvoltage protection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6691—Structural association with built-in electrical component with built-in electronic circuit with built-in signalling means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/26—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
- H02H3/22—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage of short duration, e.g. lightning
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The disclosure provides a power supply system and a power supply method, and relates to the technical field of communication. The power supply system comprises: the power receiving side lightning stroke detection sensor is used for detecting whether the power receiving side is struck by lightning or not; the photoelectric composite socket comprises a socket optical fiber interface, a socket power interface and a control signal transmitting part, wherein the control signal transmitting part is used for sending a power supply circuit disconnection signal to the photoelectric composite plug when lightning strikes occur on the power receiving side; the power supply side lightning stroke detection sensor is used for detecting whether the power supply side is struck by lightning or not; the photoelectric composite plug comprises a plug optical fiber interface, a plug power interface and a power supply circuit control part; the power supply circuit control means is configured to disconnect the power supply circuit when a power supply circuit disconnection signal is detected and a lightning strike occurs on the power supply side. The power supply circuit can be disconnected and the optical data transmission of the communication optical fiber can be maintained when lightning strike frequently occurs, so that the lightning strike can be prevented from damaging the power supply side equipment and the power receiving side equipment while communication service is ensured.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a power supply system and a power supply method.
Background
China has wide regions, complex terrain, frequent lightning activities and serious disasters. From the area where the thunder damage occurs, many areas with dense population and developed economy in China are in areas with more than medium thunder. The probability of lightning damage to computers and other electronic information products in these areas is high, and lightning protection measures for outdoor equipment are necessary.
The base station radio frequency of the public mobile communication network is remote, the optical broadband access network provides communication services such as voice, video, data and the like for realizing broadband signal transmission, equipment power supply and equipment control and largely using the photoelectric composite cable, and lightning protection measures need to be taken. However, the aerial and outdoor photoelectric composite optical cable is more greatly influenced by direct and indirect disasters caused by lightning, and the probability of surge damage of communication equipment is higher.
Disclosure of Invention
The technical problem that this disclosure solved is how to prevent the damage of thunderbolt to power supply side equipment and receiving side equipment while guaranteeing communication service.
According to an aspect of an embodiment of the present disclosure, there is provided a power supply system including: the power receiving side lightning stroke detection sensor is used for detecting whether the power receiving side is struck by lightning or not; the photoelectric composite socket comprises a socket optical fiber interface, a socket power interface and a control signal transmitting part, wherein the control signal transmitting part is used for sending a power supply circuit disconnection signal to the photoelectric composite plug when lightning strikes occur on the power receiving side; the power supply side lightning stroke detection sensor is used for detecting whether the power supply side is struck by lightning or not; the photoelectric composite plug comprises a plug optical fiber interface, a plug power interface and a power supply circuit control part; the plug optical fiber interface corresponds to the socket optical fiber interface and is used for enabling the communication optical fiber to always keep optical data transmission through the communication optical fiber between the power receiving side and the power supply side; the plug power interface corresponds to the socket power interface and is used for connecting a power supply circuit between the power receiving side and the power supply side; the power supply circuit control means is configured to disconnect the power supply circuit when a power supply circuit disconnection signal is detected and a lightning strike occurs on the power supply side.
In some embodiments, the control signal transmitting component is a coil layer for generating a first magnetic field as a power supply circuit disconnection signal when a lightning strike occurs on the power receiving side; the power supply circuit control part comprises a power supply printing plate, a movable power supply contact and a power supply side electromagnet; the power supply printing plate includes a magnetic field measuring part for detecting a first magnetic field; the power supply side electromagnet is used for: when a lightning strike occurs on the power supply side and the magnetic field measuring means detects the first magnetic field, the movable power supply contact is repelled, causing the movable power supply contact to separate from the power supply printing plate.
In some embodiments, the first magnetic field attracts the movable power contact, causing the movable power contact to detach from the powered printing plate.
In some embodiments, the control signal transmitting component is further configured to send a power supply circuit closing signal to the photoelectric composite plug after the lightning strike on the power receiving side is finished; the power supply circuit control part is also used for closing the power supply circuit after the lightning stroke on the power supply side is finished and the power supply circuit closing signal is detected.
In some embodiments, the control signal transmitting component is a coil layer and is used for generating a second magnetic field as a power supply circuit closing signal after the lightning strike on the power receiving side is finished; the power supply circuit control part comprises a power supply printing plate, a movable power supply contact and a power supply side electromagnet; the power supply printing plate includes a magnetic field measuring part for detecting the second magnetic field; the power supply side electromagnet is used for: and when the lightning stroke on the power supply side is finished and the magnetic field measuring part detects the second magnetic field, the movable power supply contact is attracted to make the movable power supply contact with the power supply printing plate.
In some embodiments, the second magnetic field repels the movable power contact, causing the movable power contact to contact the powered printing plate.
In some embodiments, the optical fiber is used for carrying out optical signal code matching detection before the power supply circuit is closed; the optoelectrical composite socket further includes a powered side electromagnet for generating a third magnetic field to repel the movable power contact such that the movable power contact contacts the powered printing plate.
In some embodiments, the power receiving-side apparatus adjusting means is further included for adjusting the posture of the power receiving-side apparatus while the power receiving-side electromagnet generates the third magnetic field.
In some embodiments, two socket power interfaces are arranged, and are symmetrically distributed by taking a symmetric axis in the width direction of the photoelectric composite socket as the symmetric axis; the socket optical fiber interfaces are double-core optical fiber interfaces and are arranged in the center of the photoelectric composite socket, or the two socket optical fiber interfaces are symmetrically distributed by taking a symmetric axis in the width direction of the photoelectric composite socket as the symmetric axis.
In some embodiments, a first magnetic material is disposed on the optoelectrical composite plug; a second magnetic material is arranged on the photoelectric composite socket; and under the condition that the photoelectric composite plug is connected with the photoelectric composite socket, the first magnetic material and the second magnetic material attract each other.
In some embodiments, the power receiving side lightning strike detection sensor includes a power receiving side surge protector and a power receiving side overcurrent protector; the power supply side lightning stroke detection sensor comprises a power supply side surge protector and a power supply side overcurrent protector; the optical fiber interface of the socket is an MT-RJ optical fiber female socket; the optical fiber interface of the plug is an MT-RJ optical fiber male plug. The socket power interface and the plug power interface are pogo pin interfaces.
According to another aspect of the embodiments of the present disclosure, there is provided a power supply method including: a lightning stroke detection sensor at the power receiving side detects whether a lightning stroke occurs at the power receiving side; when the power receiving side is struck by lightning, a control signal transmitting component in the photoelectric composite socket sends a power supply circuit disconnection signal to the photoelectric composite plug; a power supply side lightning stroke detection sensor detects whether a power supply side is struck by lightning or not; when lightning strike occurs on the power supply side and the power supply circuit control part in the photoelectric composite plug detects a power supply circuit disconnection signal, the power supply circuit control part disconnects the power supply circuit between the power receiving side and the power supply side which are connected with the photoelectric composite plug through the photoelectric composite socket; the communication optical fiber between the power receiving side and the power supply side through which the photoelectric composite socket and the photoelectric composite plug pass always keeps optical data transmission.
In some embodiments, the control signal emitting component is a coil layer, and the power supply circuit control component includes a power supply printing plate, a movable power supply contact, and a power supply side electromagnet; the control signal transmitting part in the photoelectric composite socket sends a power supply circuit disconnection signal to the photoelectric composite plug, and the control signal transmitting part comprises the following steps: the coil layer in the photoelectric composite socket generates a first magnetic field; when the power supply circuit control part in the photoelectric composite plug detects a power supply circuit disconnection signal, the power supply circuit control part in the photoelectric composite plug disconnects the power supply circuit between the power receiving side and the power supply side which are connected by the photoelectric composite socket and the photoelectric composite plug, and the power supply circuit control part comprises: when a magnetic field measuring part included in the power supply printing plate detects the first magnetic field, the power supply side electromagnet repels the movable power supply contact, so that the movable power supply contact is separated from the power supply printing plate.
In some embodiments, the first magnetic field attracts the movable power contact, causing the movable power contact to detach from the powered printing plate.
In some embodiments, further comprising: after the lightning strike on the power receiving side is finished, a control signal transmitting part in the photoelectric composite socket sends a power supply circuit closing signal to the photoelectric composite plug; and closing the power supply circuit after the lightning stroke on the power supply side is finished and the power supply circuit control part detects a power supply circuit closing signal.
In some embodiments, the control signal emitting component is a coil layer, and the power supply circuit control component includes a power supply printing plate, a movable power supply contact, and a power supply side electromagnet; the control signal transmitting part in the photoelectric composite socket sends a power supply circuit closing signal to the photoelectric composite plug, and the control signal transmitting part comprises the following steps: the coil layer in the photoelectric composite socket generates a second magnetic field; after the supply circuit control unit detects the supply circuit closing signal, the closed supply circuit includes: after the magnetic field measuring component detects the second magnetic field, the power supply side electromagnet adsorbs the movable power supply contact, so that the movable power supply contact is contacted with the power supply printing plate.
In some embodiments, the second magnetic field repels the movable power contact, causing the movable power contact to contact the powered printing plate.
In some embodiments, further comprising: the communication optical fiber performs optical signal code matching detection to determine smooth transmission of optical data; the power supply circuit carries out resistive load detection, and the load is determined to accord with the design standard of the power supply circuit; the electromagnet at the power receiving side in the photoelectric composite socket generates a third magnetic field to repel the movable power contact, so that the movable power contact is contacted with the power supply printing plate.
In some embodiments, further comprising: and the power receiving side equipment performs attitude adjustment while the power receiving side electromagnet generates the third magnetic field.
The power supply circuit can be disconnected and the optical data transmission of the communication optical fiber can be maintained when lightning strike frequently occurs, so that the lightning strike can be prevented from damaging the power supply side equipment and the power receiving side equipment while communication service is ensured.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 shows a schematic structural diagram of a power supply system of some embodiments of the present disclosure.
Fig. 2 shows a top view of the optoelectrical composite socket.
Fig. 3 shows a top view of an optoelectronic composite plug.
Fig. 4 shows a cross-sectional view of an opto-electronic composite plug.
Fig. 5 illustrates a flow diagram of a power supply method of some embodiments of the present disclosure.
Fig. 6 shows a flow diagram of a power supply method according to further embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Some embodiments of the power supply system of the present disclosure are first described in conjunction with fig. 1.
Fig. 1 shows a schematic structural diagram of a power supply system of some embodiments of the present disclosure. As shown in fig. 1, the power supply system 1 in the present embodiment includes:
a power receiving side lightning stroke detection sensor 11 for detecting whether a lightning stroke occurs at the power receiving side;
the photoelectric composite socket 12 comprises a socket optical fiber interface, a socket power interface and a control signal transmitting part, wherein the control signal transmitting part is used for sending a power supply circuit disconnection signal to the photoelectric composite plug when lightning strikes occur on the power receiving side;
a power supply side lightning strike detection sensor 13 for detecting whether a lightning strike occurs on the power supply side;
the photoelectric composite plug 14 comprises a plug optical fiber interface, a plug power interface and a power supply circuit control part; the plug optical fiber interface corresponds to the socket optical fiber interface and is used for enabling the communication optical fiber to always keep optical data transmission through the communication optical fiber between the power receiving side and the power supply side; the plug power interface corresponds to the socket power interface and is used for connecting a power supply circuit between the power receiving side and the power supply side; the power supply circuit control means is configured to disconnect the power supply circuit when a power supply circuit disconnection signal is detected and a lightning strike occurs on the power supply side. Wherein the power supply circuit is used for feeding electric energy, and the communication light is used for realizing high-bandwidth optical data transmission.
In some embodiments, the power receiving-side lightning strike detection sensor 11 may include a power receiving-side surge protector 111 and a power receiving-side overcurrent protector 112, and the power supplying-side lightning strike detection sensor 13 may include a power supplying-side surge protector 131 and a power supplying-side overcurrent protector 132.
Some embodiments of the optoelectrical composite socket are described below in conjunction with FIG. 2
Fig. 2 shows a top view of the optoelectrical composite socket. As shown in fig. 2, the optoelectric composite socket 12 includes a socket optical fiber interface 121, a socket power interface 122, and a control signal transmitting part 123. The control signal transmitting part 123 is a coil layer, and is configured to generate a first magnetic field as a power supply circuit disconnection signal when a lightning strike occurs on the power receiving side.
Some embodiments of an opto-electronic composite plug are described below in conjunction with FIG. 3
Fig. 3 shows a top view of an optoelectronic composite plug. As shown in fig. 3, the optoelectric composite plug 14 includes a plug optical fiber interface 141, a plug power interface 142, and a power supply circuit control part 143. Fig. 4 shows a cross-sectional view of an opto-electronic composite plug. As shown in fig. 4, the power supply circuit control part 143 includes a power supply printing plate 1431, a movable power contact 1432, and a power supply-side electromagnet 1433; the power supply printing plate 1431 includes a magnetic field measuring part 14311 for detecting a first magnetic field; the power supply-side electromagnet 1433 is configured to: when a lightning strike occurs on the power supply side and the magnetic field measuring component 14311 detects the first magnetic field, the movable power contact 1432 is repelled, causing the movable power contact 1432 to separate from the power supply printing plate 1431. The plug fiber interface 141 is separate from the power supply printing plate 1431.
In the embodiments shown in fig. 2 and 3, the photoelectric composite socket and the photoelectric composite plug are combined to form a photoelectric composite interface, so that an interface structure for automatic disconnection of optical cable overvoltage and overcurrent detection is realized. When a lightning strike occurs, the power supply side lightning strike detection sensor and the power receiving side lightning strike detection sensor detect that an overvoltage/overcurrent of an operation/transient state exceeds a threshold value. The coil layer generates different magnetic hysteresis loop change frequencies and amplitudes to trigger the electromagnet to unlock, and the power supply contact is separated from the circuit board in a contact mode, so that the power supply part of the mooring composite optical cable interface is triggered to physically break away.
The embodiment is suitable for the power supply scenes of base station radio frequency remote and composite optical cables, the power supply contact is separated from the physical environment by using electromagnetic repulsion, the optical fiber interface maintains the connection mode of the photoelectric composite interface for communication, and the optical fiber interface is matched with devices such as SPD equipment and overcurrent protection to protect power supply and power receiving equipment, so that the conduction of lightning on the mooring cable is isolated in a physical mode.
In some embodiments, the first magnetic field attracts the movable power contact 1432, causing the movable power contact 1432 to separate from the powered printing plate 1431.
In some embodiments, the control signal transmitting part 123 is further configured to transmit a power supply circuit closing signal to the optical-electrical composite plug 14 after the lightning strike on the power receiving side is completed. The power supply circuit control part 143 is also configured to close the power supply circuit after the lightning strike on the power supply side is completed and the power supply circuit closing signal is detected.
In some embodiments, the coil layer 123 is configured to generate a second magnetic field as a power supply circuit closing signal after the lightning strike on the power receiving side is completed. The magnetic field measurement component 14311 is used to detect a second magnetic field; the power supply-side electromagnet 1433 is configured to: when the lightning strike on the power supply side is finished and the magnetic field measuring part detects the second magnetic field, the movable power contact 1432 is attracted, so that the movable power contact 1432 contacts the power supply printing plate 1431.
In some embodiments, the second magnetic field repels the movable power contact 1432, causing the movable power contact 1432 to contact the powered printing plate 1431.
In some embodiments, the power supply system 1 further comprises a communication fiber 15 between the power receiving side and the power supply side, the communication fiber 15 being used for optical signal pair code detection before the power supply circuit is closed; optoelectrical composite socket 12 further includes a powered side electromagnet 124 for generating a third magnetic field to repel movable power contact 1432 such that movable power contact 1432 contacts power supply printing plate 1431.
In the above embodiment, the multiple lightning strike detection sensors are used to comprehensively judge that the occurrence of the lightning strike is ended, and the magnetic field of the composite interface is adjusted to recover the power supply after the lightning strike is ended.
In some embodiments, the power supply system 1 further includes a power-side-equipment adjusting component 16 configured to adjust the posture of the power-side equipment 16 while the power-side electromagnet 124 generates the third magnetic field.
In some embodiments, two of the socket power interfaces 122 are arranged, and are symmetrically distributed with respect to a symmetry axis in a width direction of the optoelectric composite socket 12; the receptacle optical fiber interfaces 121 are dual-core optical fiber interfaces and are disposed in the center of the optoelectric composite receptacle 12, or two receptacle optical fiber interfaces 121 are disposed and symmetrically distributed with a symmetry axis in the width direction of the optoelectric composite receptacle 12 as a symmetry axis.
The photoelectric composite cable interface is designed in an axisymmetric mode, and the positive and negative directions of the photoelectric composite socket and the photoelectric composite plug do not need to be distinguished, so that the photoelectric composite socket and the photoelectric composite plug can be conveniently plugged and unplugged.
In some embodiments, the optoelectrical composite plug 14 has a first magnetic material 144 disposed thereon and the optoelectrical composite receptacle 12 has a second magnetic material 125 disposed thereon. In the case where the optoelectric composite plug 14 is connected to the optoelectric composite socket 12, the first magnetic material 144 and the second magnetic material 125 attract each other.
For example, the first magnetic material may be a protrusion made of a high permeability moment magnetic insulating material and the second magnetic material may be a recess made of a permanent magnetic material. When the permanent magnet is connected, the high-permeability rectangular magnetic insulating material and the permanent magnet are attracted magnetically, and the side faces of the protruding portion and the recessed portion are attracted mutually, so that the magnetic attraction area can be increased. The magnetic field generated during power supply can further enhance the magnetic attraction between the high-permeability rectangular magnetic insulating material and the permanent magnetic material. When the current and voltage abnormality is detected by the power receiving socket port, the coil generates a magnetic field with the polarity opposite to that of the permanent magnetic material, and the attraction force of the interface is reduced to achieve the purpose of separating the metal contact. The magnetic field is transmitted to the plug through the torque magnetic material, the plug circuit detects the change frequency and the strength of the magnetic field, the metal contact at the other end is separated, and the physical separation of the plug and the metal contact of the socket power supply circuit is achieved.
The design of the magnetic material enables the photoelectric composite socket and the photoelectric composite plug not to need to be rotated, and the photoelectric composite socket and the photoelectric composite plug do not need to be pressed and fastened, so that the photoelectric composite socket and the photoelectric composite plug are simple and easy to insert, pull out and maintain.
In some embodiments, the receptacle fiber optic interface 121 may be a female MT-RJ fiber optic receptacle and the plug fiber optic interface 141 may be a male MT-RJ fiber optic plug. A pair of optical fibers is packaged by adopting an MT-RJ male plug and an MT-RJ optical fiber female socket to achieve the purpose of tight occlusion.
In some embodiments, the socket power interface 122 and the plug power interface 142 may be pogo pin interfaces.
The power supply adopts double-end pogo pin connector, and the power ground pin of pogo pin connector is 1mm higher than power pin vertical height, and pogo pin connection contact can satisfy communication equipment during operation such as radio frequency remote base station to load heavy current power supply. The other end of the pogo pin is connected with the power supply printing plate, the electromagnet controls the power supply contact to be in contact with the printing plate, and the work state is suction locking.
Some embodiments of the power supply method of the present disclosure are described below in conjunction with fig. 5 to explain how the power supply system operates for power down protection.
Fig. 5 illustrates a flow diagram of a power supply method of some embodiments of the present disclosure. As shown in fig. 5, the present embodiment includes steps S501 to S507.
In step S501, the power receiving-side lightning strike detection sensor detects whether or not a lightning strike has occurred on the power receiving side.
For example, the power receiving side lightning strike detection sensor measures in real time the overvoltage, overcurrent, and overvoltage/overcurrent duration on the power receiving side. If the voltage exceeds the preset voltage value, the current exceeds the preset current value, and the duration time exceeds the preset duration time, the occurrence of the lightning stroke can be judged, otherwise, the non-occurrence of the lightning stroke is judged. The power receiving side lightning stroke detection sensor can also transmit information such as voltage, current, voltage and current protection device action time and lightning polarity to a background cluster lightning monitoring and analyzing module in real time through an optical interface so as to analyze the type and position of lightning stroke.
If the lightning stroke occurs, executing step S502; if no lightning strike occurs, step S505 is executed.
In step S502, the control signal transmitting part in the optoelectric composite socket transmits a power supply circuit disconnection signal to the optoelectric composite plug.
For example, the control signal emitting component may be a coil layer, and the coil layer in the optoelectric composite socket may generate the first magnetic field as the power supply circuit disconnection signal.
In some embodiments, the first magnetic field attracts the movable power contact, causing the movable power contact to detach from the powered printing plate.
In step S503, the power supply circuit control part in the optoelectric composite plug detects a power supply circuit disconnection signal.
If the power supply circuit disconnection signal is detected, executing step S504; if the power supply circuit off signal is not detected, step S505 is executed.
In step S504, the power supply side lightning strike detection sensor detects whether a lightning strike has occurred on the power supply side.
If no lightning stroke occurs, executing step S505; if a lightning strike occurs, step S506 is executed.
In step S505, it is determined whether active protection is required.
For example, the supply side lightning strike detection sensor may notify the control layer of a lightning strike fault, and the control layer determines whether active protection is required.
If active protection is needed, execute step S506; if active protection is not needed, the process is ended.
In step S506, the power supply circuit control unit disconnects the power supply circuit between the power receiving side and the power supply side connected to the optoelectric composite plug and the optoelectric composite socket, and the optical data transmission is always maintained by the communication optical fiber between the power receiving side and the power supply side through which the optoelectric composite plug and the optoelectric composite socket pass.
For example, when thunderstorm disasters occur, the ground console can execute the interface power supply through the control command and break away from the operation, the base station in one area stops simultaneously the ground to supply power to the unmanned aerial vehicle base station through the interface, and the unmanned aerial vehicle base station continues to keep the communication uninterrupted in a short time through the battery power supply.
In some embodiments, the power supply circuit control part includes a power supply printing plate, a movable power supply contact, and a power supply-side electromagnet; when a magnetic field measuring part included in the power supply printing plate detects the first magnetic field, the power supply side electromagnet repels the movable power supply contact, so that the movable power supply contact is separated from the power supply printing plate.
In some embodiments, the first magnetic field attracts the movable power contact, causing the movable power contact to detach from the powered printing plate.
In step S507, the lightning is logged and analyzed.
The power supply method provided by the embodiment utilizes the intelligent composite optical cable interface composed of the photoelectric composite socket and the photoelectric composite plug, can automatically disconnect the power supply interface of the mooring cable to disconnect the power supply circuit when lightning strike frequently occurs, and keeps the optical data transmission of the communication optical fiber uninterrupted. Therefore, the above-mentioned embodiments can prevent lightning spots or caused surges from intruding into communication equipment (including power supply side equipment and power receiving side equipment, such as ground power supply, a power distribution loop, a base station, and an optical switching device) along a composite cable to cause electrical damage while ensuring communication services, and save the manual maintenance cost for the power supply system.
The embodiment is suitable for communication signal transmission under lightning and complex electromagnetic environments to guarantee high priority, reduces the hidden danger that a surge protector is broken down under the action of lightning overvoltage and burns to cause fire, and ensures the normal operation of the composite optical cable power supply and receiving equipment in scenes such as an optical broadband access network and base station radio frequency remote station. The above embodiments are particularly applicable to the following scenarios: an IDC (Internet Data Center) Data machine room and a transmission machine room; the lightning protection method comprises the following steps of lightning protection of base station Power supply, lightning protection of far-end PoE (Power Over Ethernet) of a 4G/5G base station and lightning protection of composite optical cable Power supply; emergency communication and equipment protection under strong electromagnetic interference in all-weather and complex electromagnetic environments such as electromagnetic bombs, nuclear weapon air explosion and the like; the photoelectric composite cable interface of the aerospace engineering recoverable rocket and the recoverable aircraft.
Further embodiments of the power supply method of the present disclosure are described below in conjunction with fig. 6 to explain how the power supply system operates to perform power restoration.
Fig. 6 shows a flow diagram of a power supply method according to further embodiments of the present disclosure. As shown in fig. 6, the present embodiment includes steps S601 to S608.
In step S601, the power receiving-side lightning strike detection sensor detects whether or not the power receiving-side lightning strike has ended.
After lightning strike, the SPD device recovers, the overcurrent protection device recovers, and overvoltage, overcurrent and overvoltage and overcurrent duration on the power receiving side are measured in real time. For example, if the overvoltage does not exceed the preset voltage value, the overcurrent does not exceed the preset current value, and the duration of the overvoltage and the overcurrent does not exceed the preset duration, it can be determined that the lightning stroke is over, a power supply interface recovery process is triggered after meeting the requirement, and a log is recorded and reported to the ground; otherwise, judging that the lightning stroke is not finished. If the power receiving side is finished with the lightning stroke, executing step S602; if the lightning strike on the power receiving side is not finished, the process is finished.
In step S602, the control signal transmitting part in the optoelectric composite socket transmits a power supply circuit closing signal to the optoelectric composite plug.
In some embodiments, the control signal emitting component is a coil layer capable of generating a second magnetic field as a power supply circuit closing signal.
In step S603, the power supply circuit control section in the photoelectric composite plug detects a power supply circuit closing signal.
In some embodiments, the power supply circuit control means includes a power supply printing plate, a movable power supply contact, and a power supply side electromagnet.
If the power supply circuit closing signal is detected, executing step S604; if the power supply circuit closing signal is not detected, the process is ended.
In step S604, the power supply side lightning strike detection sensor detects whether the power supply side lightning strike has ended.
If the lightning stroke on the power supply side is finished, executing the step S605; and if the lightning strike on the power supply side is not finished, ending the process.
In step S605, the communication fiber performs optical signal code matching detection to determine that the optical data transmission is smooth.
If the optical data transmission is smooth, executing step S606; if the optical data transmission is not smooth, the process is finished, and the power supply to the interface is stopped.
In step S606, the power supply circuit performs resistive load detection to determine that the load meets the design criteria of the power supply circuit.
If the design criteria are met, go to step S607; if the design standard is not met, the process is ended, and the power supply to the interface is stopped.
In step S607, the power supply circuit control section closes the power supply circuit.
In some embodiments, after the magnetic field measuring means detects the second magnetic field, the power supply-side electromagnet attracts the movable power supply contact to bring the movable power supply contact into contact with the power supply printing plate.
In some embodiments, the second magnetic field repels the movable power contact, causing the movable power contact to contact the powered printing plate.
In step S608, the power receiving-side electromagnet in the optoelectric composite socket generates a third magnetic field to repel the movable power contact, causing the movable power contact to contact the power supply printing plate.
For example, the power receiving side interface electromagnet acts to apply a forward magnetic field to help the power contact the power supply printing plate.
In some embodiments, the power-side device performs attitude adjustment while the power-side electromagnet generates the third magnetic field.
For example, if the interface fails to supply power by magnetic field attraction for many times, the unmanned aerial vehicle enters a base station attitude adjustment process, and after the attitude adjustment is permitted, the magnetic field attraction action is simultaneously performed to help power supply recovery. If the power supply can not be recovered, the unmanned aerial vehicle base station can send an abnormal alarm for power supply recovery to the ground control console, and the unmanned aerial vehicle base station enters a quit-service program, stops the base station service and automatically descends.
Above-mentioned embodiment is when guaranteeing that communication service is uninterrupted in the thunderbolt process, can also realize that the intelligent composite optical cable interface automated inspection lightning stroke that photoelectricity composite socket and photoelectricity composite plug constitute is ended to resume the power supply through intelligent composite optical cable interface both sides magnetic field synchronization, thereby realized the communication transmission and the lightning-arrest automated management of lightning protection, further saved the artifical maintenance cost to power supply system, be applicable to the communication guarantee task of unmanned aerial vehicle basic station under the abominable meteorological condition.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (19)
1. A power supply system comprising:
the power receiving side lightning stroke detection sensor is used for detecting whether the power receiving side is struck by lightning or not;
the photoelectric composite socket comprises a socket optical fiber interface, a socket power interface and a control signal transmitting part, wherein the control signal transmitting part is used for sending a power supply circuit disconnection signal to the photoelectric composite plug when lightning strikes occur on the power receiving side;
the power supply side lightning stroke detection sensor is used for detecting whether the power supply side is struck by lightning or not;
the photoelectric composite plug comprises a plug optical fiber interface, a plug power interface and a power supply circuit control part; the plug optical fiber interface corresponds to the socket optical fiber interface and is used for enabling the communication optical fiber to always keep optical data transmission through the communication optical fiber between the power receiving side and the power supply side; the plug power interface corresponds to the socket power interface and is used for connecting a power supply circuit between a power receiving side and a power supply side; the power supply circuit control part is used for disconnecting the power supply circuit when the power supply circuit disconnection signal is detected and lightning strike occurs on the power supply side.
2. The power supply system according to claim 1, wherein the control signal transmitting member is a coil layer for generating a first magnetic field as the power supply circuit disconnection signal when a lightning strike occurs on a power receiving side;
the power supply circuit control part comprises a power supply printing plate, a movable power supply contact and a power supply side electromagnet; the power supply printed board contains a magnetic field measuring part for detecting the first magnetic field; the power supply side electromagnet is used for: when a lightning strike occurs on the power supply side and the magnetic field measuring means detects the first magnetic field, the movable power supply contact is repelled, and the movable power supply contact is separated from the power supply printed board.
3. The power supply system of claim 2, wherein the first magnetic field attracts the movable power contact, causing the movable power contact to separate from the power supply printed board.
4. The power supply system of claim 1,
the control signal transmitting part is also used for transmitting a power supply circuit closing signal to the photoelectric composite plug after the lightning stroke on the power receiving side is finished;
the power supply circuit control part is also used for closing the power supply circuit after the lightning stroke on the power supply side is finished and the power supply circuit closing signal is detected.
5. The power supply system according to claim 4, wherein the control signal transmitting component is a coil layer for generating a second magnetic field as the power supply circuit closing signal after the lightning strike on the power receiving side is finished;
the power supply circuit control part comprises a power supply printing plate, a movable power supply contact and a power supply side electromagnet; the power supply printed board contains a magnetic field measuring part for detecting the second magnetic field; the power supply side electromagnet is used for: and when the lightning strike on the power supply side is finished and the magnetic field measuring component detects the second magnetic field, the movable power supply contact is attracted to be contacted with the power supply printed board.
6. The power supply system of claim 5, wherein the second magnetic field repels the movable power contact causing the movable power contact to contact the power supply printed board.
7. The power supply system of claim 5, further comprising a communication fiber between a power receiving side and a power supply side, the communication fiber for optical signal pair code detection before the power supply circuit is closed;
the photoelectric composite socket also comprises a power receiving side electromagnet which is used for generating a third magnetic field to repel the movable power supply contact so that the movable power supply contact is contacted with the power supply printed board.
8. The power supply system according to claim 7, further comprising power-reception-side-equipment adjustment means for adjusting an attitude of the power-reception-side equipment while the power-reception-side electromagnet generates the third magnetic field.
9. The power supply system according to any one of claims 1 to 8,
the two socket power interfaces are symmetrically distributed by taking a symmetric axis in the width direction of the photoelectric composite socket as a symmetric axis;
the optical fiber interfaces of the socket are double-core optical fiber interfaces and are arranged in the center of the photoelectric composite socket, or two optical fiber interfaces of the socket are arranged and are symmetrically distributed by taking a symmetric axis in the width direction of the photoelectric composite socket as a symmetric axis.
10. The power supply system according to any one of claims 1 to 8,
the photoelectric composite plug is provided with a first magnetic material;
the photoelectric composite socket is provided with a second magnetic material;
and under the condition that the photoelectric composite plug is connected with the photoelectric composite socket, the first magnetic material and the second magnetic material attract each other.
11. The power supply system according to any one of claims 1 to 8,
the power receiving side lightning stroke detection sensor comprises a power receiving side surge protector and a power receiving side overcurrent protector;
the power supply side lightning stroke detection sensor comprises a power supply side surge protector and a power supply side overcurrent protector;
the optical fiber interface of the socket is an MT-RJ optical fiber female socket;
the plug optical fiber interface is an MT-RJ optical fiber male plug;
the socket power interface and the plug power interface are pogo pin interfaces.
12. A method of supplying power, comprising:
a lightning stroke detection sensor at the power receiving side detects whether a lightning stroke occurs at the power receiving side;
when the power receiving side is struck by lightning, a control signal transmitting component in the photoelectric composite socket sends a power supply circuit disconnection signal to the photoelectric composite plug;
a power supply side lightning stroke detection sensor detects whether a power supply side is struck by lightning or not;
when a lightning strike occurs on the power supply side and a power supply circuit control part in the photoelectric composite plug detects the power supply circuit disconnection signal, the power supply circuit control part disconnects a power supply circuit between the power receiving side and the power supply side which are connected with the photoelectric composite plug through the photoelectric composite socket; and the communication optical fiber between the power receiving side and the power supply side, through which the photoelectric composite socket and the photoelectric composite plug pass, always keeps optical data transmission.
13. The power supply method according to claim 12, wherein the control signal emitting part is a coil layer, and the power supply circuit control part includes a power supply printed board, a movable power supply contact, and a power supply-side electromagnet;
the control signal transmitting part in the photoelectric composite socket sends a power supply circuit disconnection signal to the photoelectric composite plug, and the control signal transmitting part comprises: the coil layer in the photoelectric composite socket generates a first magnetic field;
when the power supply circuit control part in the photoelectric composite plug detects the power supply circuit disconnection signal, the power supply circuit control part in the photoelectric composite plug disconnects the power supply circuit between the power receiving side and the power supply side which are connected with the photoelectric composite plug by the photoelectric composite socket, and the power supply circuit control part comprises: when the magnetic field measuring part contained in the power supply printed board detects the first magnetic field, the power supply side electromagnet repels the movable power supply contact, so that the movable power supply contact is separated from the power supply printed board.
14. The power supply method according to claim 13, wherein the first magnetic field attracts the movable power supply contact to separate the movable power supply contact from the power supply printed board.
15. The power supply method of claim 12, further comprising:
after the lightning strike on the power receiving side is finished, a control signal transmitting part in the photoelectric composite socket sends a power supply circuit closing signal to the photoelectric composite plug;
and closing the power supply circuit after the lightning stroke on the power supply side is finished and the power supply circuit control part detects the power supply circuit closing signal.
16. The power supply method according to claim 15, wherein the control signal emitting part is a coil layer, the power supply circuit control part includes a power supply printed board containing a magnetic field measuring part, a movable power supply contact, and a power supply-side electromagnet;
the control signal transmitting part in the photoelectric composite socket sends a power supply circuit closing signal to the photoelectric composite plug, and the control signal transmitting part comprises: the coil layer in the photoelectric composite socket generates a second magnetic field;
after the power supply circuit control part detects the power supply circuit closing signal, closing the power supply circuit comprises: and after the magnetic field measuring component detects the second magnetic field, the power supply side electromagnet adsorbs the movable power supply contact, so that the movable power supply contact is contacted with the power supply printed board.
17. The power supply method of claim 16, wherein the second magnetic field repels the movable power contact causing the movable power contact to contact the power supply printed board.
18. The power supply method of claim 16, further comprising:
the communication optical fiber performs optical signal code matching detection to determine smooth transmission of optical data;
the power supply circuit carries out resistive load detection, and the load is determined to accord with the design standard of the power supply circuit;
and the electromagnet at the power receiving side in the photoelectric composite socket generates a third magnetic field to repel the movable power contact, so that the movable power contact is contacted with the power supply printed board.
19. The power supply method of claim 18, further comprising: and the power receiving side equipment performs attitude adjustment while the power receiving side electromagnet generates a third magnetic field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811521250.4A CN111403965B (en) | 2018-12-13 | 2018-12-13 | Power supply system and power supply method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811521250.4A CN111403965B (en) | 2018-12-13 | 2018-12-13 | Power supply system and power supply method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111403965A CN111403965A (en) | 2020-07-10 |
| CN111403965B true CN111403965B (en) | 2021-06-04 |
Family
ID=71428224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811521250.4A Active CN111403965B (en) | 2018-12-13 | 2018-12-13 | Power supply system and power supply method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111403965B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11352176A (en) * | 1998-06-10 | 1999-12-24 | Shikoku Instrumentation Co Ltd | Flash accident detecting method power transmission line |
| CN101170249A (en) * | 2007-11-06 | 2008-04-30 | 中兴通讯股份有限公司 | A lighting over-voltage protection method and system for remote computer room AC power input |
| CN202134906U (en) * | 2010-12-29 | 2012-02-01 | 孙巍巍 | Intelligent monitoring type surge protector |
| CN204925783U (en) * | 2015-09-25 | 2015-12-30 | 国网四川省电力公司巴中供电公司 | Indoor long -range fortune dimension information system that patrols and examines of control protection of transformer substation |
| CN207398896U (en) * | 2017-10-17 | 2018-05-22 | 田聪 | A kind of charging equipment of tape jam detection |
| CN208127974U (en) * | 2018-03-10 | 2018-11-20 | 广州悦元电子有限公司 | Off-network type intelligent solar controller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014182300A1 (en) * | 2013-05-08 | 2014-11-13 | Intel Corporation | Voltage detector with high voltage protection |
-
2018
- 2018-12-13 CN CN201811521250.4A patent/CN111403965B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11352176A (en) * | 1998-06-10 | 1999-12-24 | Shikoku Instrumentation Co Ltd | Flash accident detecting method power transmission line |
| CN101170249A (en) * | 2007-11-06 | 2008-04-30 | 中兴通讯股份有限公司 | A lighting over-voltage protection method and system for remote computer room AC power input |
| CN202134906U (en) * | 2010-12-29 | 2012-02-01 | 孙巍巍 | Intelligent monitoring type surge protector |
| CN204925783U (en) * | 2015-09-25 | 2015-12-30 | 国网四川省电力公司巴中供电公司 | Indoor long -range fortune dimension information system that patrols and examines of control protection of transformer substation |
| CN207398896U (en) * | 2017-10-17 | 2018-05-22 | 田聪 | A kind of charging equipment of tape jam detection |
| CN208127974U (en) * | 2018-03-10 | 2018-11-20 | 广州悦元电子有限公司 | Off-network type intelligent solar controller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111403965A (en) | 2020-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9336975B2 (en) | Power distribution apparatus supplying direct-current power | |
| CN106505677B (en) | A kind of electric car charging socket protective device and its control method | |
| CA3025545C (en) | Method and apparatus for monitoring status of relay | |
| CN205985599U (en) | Prevent cable of opening a way | |
| CN202817896U (en) | Feeder line automation system | |
| CN104104429A (en) | Automatic light bypassing method achieved through MEMS optical switch | |
| CN110045216A (en) | A kind of ground-fault detection system and detection method | |
| CN105488931A (en) | Warning signal generation device, base station power device, and base station power system | |
| CN111403965B (en) | Power supply system and power supply method | |
| CN203849402U (en) | Anti-blocking monitoring system for electric energy meter verification production line and stereoscopic warehouse connection transmission line | |
| CN109980708B (en) | Power supply device, power supply system, and power supply method | |
| CN108964020A (en) | A kind of physical isolation type lightning-protection system and physical isolation type lightening arresting method | |
| CN103219803A (en) | Switch cabinet monitoring system | |
| CN108896864A (en) | A kind of fuse switch on-line monitoring system | |
| CN110086530A (en) | A kind of Cable's Fault alarm system | |
| CN203772980U (en) | Wiring structure used for detecting passive switch signal | |
| CN212435599U (en) | Anti-static power supply device | |
| CN109004618A (en) | A kind of electric arc protection on-line monitoring system | |
| CN104009473A (en) | Self-healing method of distribution network system | |
| CN101740945A (en) | Easy-to- disconnected type safety connector system employing magnetic force to maintain connection and corresponding method thereof | |
| CN204989361U (en) | Connector breaks away from detection device | |
| CN208890348U (en) | The anti-electrically disconnected device of band | |
| CN105978157A (en) | Integrated switch cabinet monitoring terminal | |
| CN209001965U (en) | A kind of intelligence light jaws equipment switching system | |
| US9525558B1 (en) | Coaxial cable or transmission medium classification system, circuit and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |