CN113078943B - Optical module detection device and method and communication equipment - Google Patents
Optical module detection device and method and communication equipment Download PDFInfo
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- CN113078943B CN113078943B CN202010009103.XA CN202010009103A CN113078943B CN 113078943 B CN113078943 B CN 113078943B CN 202010009103 A CN202010009103 A CN 202010009103A CN 113078943 B CN113078943 B CN 113078943B
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- optical module
- slot
- accommodating groove
- receiving
- communication interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
Abstract
The invention provides an optical module detection device, a method and communication equipment, wherein the optical module detection device comprises: an optical module socket comprising an entry end; the touch switch is positioned at the other end, far away from the inlet end, in the optical module slot; the accommodating groove is used for accommodating an optical module, and the optical module is connected with the mainboard through the accommodating groove; when the accommodating groove moves from a first position to a second position in the optical module slot, the optical module is disconnected from the mainboard, the first position is the position of the touch switch, and the second position is between the touch switch and the inlet end. The embodiment of the invention can improve the integrity of the data transmission of the optical module.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an optical module detection apparatus and method, and a communication device.
Background
With the development of communication technology, optical fiber communication has entered various fields in our work and life. The optical module is an important component of optical fiber communication, and mainly completes the receiving and sending of optical signals and the interconversion of the optical signals and electric signals.
When the optical module is used, the optical module is usually inserted into an optical module slot of the communication device, and the communication device can realize data transmission through the optical module. Currently, when an optical module is already pulled out of an optical module slot, a communication device detects that the optical module is pulled out, which may cause data transmitted by the optical module to be lost, so that the integrity of data transmitted by the optical module is low.
Disclosure of Invention
The embodiment of the invention provides an optical module detection device, an optical module detection method and communication equipment, and aims to solve the problem that in the prior art, the data transmitted by an optical module is lost due to the fact that the optical module is pulled out, so that the integrity of the data transmitted by the optical module is low.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides an optical module detection apparatus, which is applied to a communication device, where the communication device includes a motherboard, and the optical module detection apparatus includes:
an optical module socket comprising an entry end;
the touch switch is positioned at the other end, far away from the inlet end, in the optical module slot;
the accommodating groove is used for accommodating an optical module, and the optical module is connected with the mainboard through the accommodating groove;
when the accommodating groove moves from a first position to a second position in the optical module slot, the optical module is disconnected from the mainboard, the first position is the position of the touch switch, and the second position is between the touch switch and the inlet end.
Optionally, the accommodating groove is provided with a first sliding portion, the optical module slot is provided with a second sliding portion matched with the first sliding portion, and the first sliding portion and the second sliding portion are matched to enable the accommodating groove to move between the first position and the second position.
Optionally, the accommodating groove includes a first communication interface and a second communication interface, the first communication interface is in communication connection with the second communication interface, the first communication interface is connected with the main board through a connection line, and the second communication interface is used for being connected with the optical module.
Optionally, the optical module includes a third communication interface, and when the optical module moves to a target position in the accommodating groove, the third communication interface is connected to the second communication interface.
Optionally, when the optical module moves to the target position in the accommodating groove, a part of the optical module is located outside the accommodating groove.
Optionally, a portion of the optical module located outside the accommodating groove includes a protruding portion, and when the optical module moves to a target position in the accommodating groove, a recessed area is formed between the protruding portion and the accommodating groove;
the optical module detection device further includes: the limiting piece is movably connected with the optical module slot and comprises a clamping part, and the clamping part is matched with the recessed area;
when the accommodating groove moves to the first position in the optical module slot, the clamping part of the limiting part can rotate to the concave area.
In a second aspect, an embodiment of the present invention provides an optical module detection method, which is applied to the optical module detection apparatus in the first aspect, and the optical module detection method includes:
and when the accommodating groove leaves the first position in the optical module slot, receiving an early warning signal sent by the touch switch.
Optionally, the method further includes:
and under the condition of receiving the early warning signal, stopping sending data to the optical module.
In a third aspect, an embodiment of the present invention provides a communication device, where the communication device includes the optical module detection apparatus described in the first aspect, and the communication device further includes:
and the receiving module is used for receiving the early warning signal sent by the touch switch when the accommodating groove leaves the first position in the optical module slot.
Optionally, the communication device further includes:
and the sending module is used for stopping sending data to the optical module under the condition of receiving the early warning signal.
In an embodiment of the present invention, the optical module detecting apparatus includes: an optical module socket including an entry end; the touch switch is positioned at the other end, far away from the inlet end, in the optical module slot; the accommodating groove is used for accommodating an optical module, and the optical module is connected with the mainboard through the accommodating groove; when the accommodating groove moves from a first position to a second position in the optical module slot, the optical module is disconnected from the mainboard, the first position is the position of the touch switch, and the second position is between the touch switch and the inlet end. Therefore, before the optical module is disconnected with the mainboard, early warning can be performed through the touch switch, and the integrity of the optical module transmission data can be improved through early warning of the pulling-out of the optical module.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic structural diagram of an optical module detection apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a communication device according to an embodiment of the present invention;
fig. 3 is a flowchart of an optical module detection method according to an embodiment of the present invention.
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 some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
Referring to fig. 1, fig. 1 is a schematic view of a light module detecting apparatus provided in an embodiment of the present invention, where the light module detecting apparatus is applied to a communication device, the communication device includes a main board 1, and as shown in fig. 1, the light module detecting apparatus includes:
an optical module socket 2, the optical module socket 2 comprising an entrance end 21;
the touch switch 3 is positioned at the other end, far away from the inlet end 21, in the optical module slot 2;
the accommodating groove 4 is used for accommodating an optical module 5, and the optical module 5 is connected with the mainboard 1 through the accommodating groove 4;
when the accommodating groove 4 moves from a first position 101 to a second position 102 in the optical module slot 2, the optical module 5 is disconnected from the motherboard 1, the first position 101 is the position of the touch switch 3, and the second position 102 is between the touch switch 3 and the entrance end 21.
The communication device may be a device such as a switch for data communication transmission. The main Board 1 may be a Printed Circuit Board (PCB). Each communication device may comprise a plurality of light module detection means. The optical module slot 2 may be an optical connector, the optical module slot 2 may be configured to accommodate the accommodating groove 4, and the accommodating groove 4 may be inserted into the optical module slot 2 from an inlet end 21 of the optical module slot 2. The touch switch 3 may be a travel switch or another switch, when the accommodating groove 4 contacts the touch switch 3, the touch switch 3 may report a touch signal to the motherboard 1, and when the accommodating groove 4 leaves the touch switch 3, the touch switch 3 may report a disconnection touch signal to the motherboard 1.
In addition, the receiving groove 4 may be movable in the optical module slot 2. For example, the receiving groove 4 may be provided with a first sliding portion, and the optical module slot 2 may be provided with a second sliding portion matching the first sliding portion, and the first sliding portion and the second sliding portion cooperate to move the receiving groove 4 between the first position 101 and the second position 102; alternatively, the surface of the receiving groove 4 contacting the optical module slot 2 may be a plane, and the receiving groove 4 may move in the optical module slot 2 under the action of an external force.
In practical application, taking communication equipment as an example of a switch, currently, there is no early warning mechanism when an optical module is pulled out of the switch, when the optical module is pulled out of the switch, a connection signal between the optical module and the switch is instantly disconnected, and data being transmitted through the optical module is abnormally interrupted, so that the integrity of data transmission is affected. In the embodiment of the invention, early warning can be performed through the touch switch 3, after the optical module 5 is inserted into the accommodating groove 4, the accommodating groove 4 can be driven to be pushed into the optical module slot 2, the accommodating groove 4 triggers the touch switch 3, and the optical module 5 can be considered to be inserted; when the optical module 5 is pulled out, the accommodating groove 4 is driven to move from the first position 101 to the second position 102 in the optical module slot 2, the accommodating groove 4 leaves the touch switch 3, the early warning signal can be triggered, when the accommodating groove 4 moves to the second position 102, the optical module 5 cannot move to the inlet end 21, the optical module 5 is continuously pulled out, the connection with the accommodating groove 4 is disconnected, and the disconnection between the optical module 5 and the mainboard 1 is realized. According to the embodiment of the invention, the integrity and the reliability of the data transmission of the optical module 5 can be improved by early warning on the pulling-out of the optical module 5.
In an embodiment of the present invention, the optical module detecting apparatus includes: an optical module socket 2, the optical module socket 2 comprising an entrance end 21; the touch switch 3 is positioned at the other end, far away from the inlet end 21, in the optical module slot 2; the accommodating groove 4 is used for accommodating an optical module 5, and the optical module 5 is connected with the mainboard 1 through the accommodating groove 4; when the accommodating groove 4 moves from a first position 101 to a second position 102 in the optical module slot 2, the optical module 5 is disconnected from the motherboard 1, the first position 101 is the position of the touch switch 3, and the second position 102 is between the touch switch 3 and the entrance end 21. Therefore, before the optical module 5 is disconnected from the mainboard 1, early warning can be performed through the touch switch 3, and the integrity of data transmission of the optical module 5 can be improved by early warning of the pulling-out of the optical module 5.
Optionally, the accommodating groove 4 is provided with a first sliding portion, the optical module slot 2 is provided with a second sliding portion matched with the first sliding portion, and the first sliding portion and the second sliding portion are matched to enable the accommodating groove 4 to move between the first position 101 and the second position 102.
The first sliding part can be a sliding rail, and the second sliding part can be a pulley; alternatively, the first sliding portion may be a pulley, and the second sliding portion may be a slide rail. The length of the first sliding part and the second sliding part may be only enough for the accommodating groove 4 to move between the first position 101 and the second position 102. The first and second sliding portions cooperate such that the receiving groove 4 may have only a fixed stroke. When the accommodating groove 4 moves from the first position 101 to the second position 102, the first sliding portion and the second sliding portion may limit the accommodating groove 4 from continuing to move toward the inlet end 21.
In this embodiment, the receiving groove 4 is provided with a first sliding portion, the optical module slot 2 is provided with a second sliding portion matching with the first sliding portion, and the first sliding portion and the second sliding portion cooperate to enable the receiving groove 4 to move between the first position 101 and the second position 102. Therefore, relative movement between the accommodating groove 4 and the optical module slot 2 is realized through the matching of the first sliding part and the second sliding part, so that a user can operate the accommodating groove 4 conveniently, and the user experience is better.
Optionally, the accommodating groove 4 includes a first communication interface and a second communication interface, the first communication interface is in communication connection with the second communication interface, the first communication interface is connected with the main board 1 through a connection line 6, and the second communication interface is used for being connected with the optical module 5.
The first communication interface may be a gold finger connection interface, or the first communication interface may also be another type of interface. The second communication interface may be a gold finger connection interface, or the second communication interface may also be another type of interface. The connecting line 6 may be a Flexible Printed Circuit (FPC) Flexible flat cable, one end of the connecting line 6 may be connected to the main board 1, and the other end of the connecting line 6 may be connected to the first communication interface. The length of the connecting wire 6 at least can satisfy the movement of the accommodating groove 4 between the first position 101 and the second position 102. The FPC flex cable may include a bus of VCC, GN, RX, TX and control lines of the optical module 5.
In practical applications, as shown in fig. 2, the main board 1 may include a CPU and a switch chip, and the optical module 5 may be connected to the switch chip through a connection line 6. When the accommodating groove 4 leaves the touch switch 3, the touch switch 3 may report the warning signal 11 to the CPU.
In this embodiment, the accommodating groove 4 includes a first communication interface and a second communication interface, the first communication interface is connected to the second communication interface in a communication manner, the first communication interface is connected to the motherboard 1 through a connection line 6, and the second communication interface is used for being connected to the optical module 5, so that the optical module 5 is connected to the motherboard 1 through the accommodating groove 4, the connection manner is convenient, and the user experience is good.
Optionally, the optical module 5 includes a third communication interface, and when the optical module 5 moves to the target position 103 in the accommodating groove 4, the third communication interface is connected to the second communication interface.
The optical module 5 moves to the target position 103 in the accommodating slot 4, and the optical module 5 may be inserted into the bottom of the accommodating slot 4. The third communication interface may be a gold finger connection interface, and the optical module 5 may be connected to the accommodating groove 4 through a gold finger, or the third communication interface may also be another type of interface.
In this embodiment, the optical module 5 includes a third communication interface, and when the optical module 5 moves to the target position 103 in the accommodating groove 4, the third communication interface is connected to the second communication interface, so that the optical module 5 is connected to the motherboard 1 through the accommodating groove 4, and therefore, the connection mode is relatively convenient and fast, and the user experience is relatively good.
Optionally, when the optical module 5 moves to the target position 103 in the accommodating slot 4, a part of the optical module 5 is located outside the accommodating slot 4.
The optical module detection device may further include a limiting member 7, and when the accommodating groove 4 moves to the first position 101 in the optical module slot 2, the limiting member 7 may prevent the accommodating groove 4 from moving abnormally; and/or, the bottom of the receiving groove 4 may contact with the optical module slot 2, and the receiving groove 4 may include a first pull ring and a first locking member, and the first locking member may be located at the bottom of the receiving groove 4. When stirring first pull ring, first retaining member can stretch out, when stirring first pull ring once more, first retaining member can retract, optical module slot 2 is last can be provided with the first trompil that first retaining member matches remove extremely in the storage tank 4 slot during first position 101, the first retaining member that stretches out can stretch into in the first trompil, can prevent that storage tank 4 from removing unusually, when needs remove storage tank 4, can stir first pull ring once more, first retaining member retract, storage tank 4 can normally remove.
In addition, the bottom of the optical module 5 may be in contact with the optical module socket 2. The portion of the optical module 5 located outside the receiving groove 4 may include a second pull ring, and the optical module 5 may further include a second locking member, which may be located at the bottom of the optical module 5. When stirring the second pull ring, the second retaining member can stretch out, when stirring the second pull ring once more, the second retaining member can retract, optical module slot 2 can be last be provided with the second trompil that the second retaining member matches storage tank 4 is in remove extremely in the optical module slot 2 during first position 101, the second retaining member that stretches out can stretch into in the second trompil, can prevent optical module 5 from moving unusually, when optical module 5 is pulled out to needs, can stir the second pull ring once more, and the second retaining member retracts, and optical module 5 can normally move.
In this embodiment, when the optical module 5 moves to the target position 103 in the accommodating slot 4, a part of the optical module 5 is located outside the accommodating slot 4, and when the optical module 5 needs to be pulled out, the optical module 5 can be pulled out through the part of the optical module 5 located outside the accommodating slot 4, so that the user experience is better.
Optionally, a portion of the optical module 5 located outside the accommodating slot 4 includes a protruding portion 51, and when the optical module 5 moves to a target position 103 in the accommodating slot 4, a recessed area 104 is formed between the protruding portion 51 and the accommodating slot 4;
the optical module detection device further includes: the stopper 7 is movably connected to the optical module socket 2, the stopper 7 includes a clamping portion 71, and the clamping portion 71 is matched with the recessed area 104;
when the accommodating groove 4 moves to the first position 101 in the optical module socket 2, the engaging portion 71 of the limiting member 7 can rotate to the recessed area 104.
The clamping portion 71 of the limiting member 7 can rotate around a connection point between the limiting member 7 and the optical module slot 2, and when the accommodating groove 4 moves to the first position 101 in the optical module slot 2, the clamping portion 71 of the limiting member 7 can rotate to the recessed area 104. When the engaging portion 71 of the limiting member 7 rotates into the recessed area 104, the accommodating groove 4 is defined at the first position 101 and cannot move. The stopper 7 can prevent the accommodating groove 4 from moving abnormally. Before the optical module 5 is pulled out, the stopper 7 may be rotated to separate the engaging portion 71 of the stopper 7 from the recessed region 104, and then the optical module 5 may be pulled out.
In this embodiment, the concave area 104 formed by the protrusion 51 and the receiving groove 4 is matched with the stopper 7, so that the receiving groove 4 can be clamped, the receiving groove 4 is prevented from moving away from the first position 101 when the receiving groove 4 is located at the first position 101 in the optical module slot 2, and an alarm signal is reduced from being triggered by mistake, thereby improving the detection accuracy of the optical module detection device.
The embodiment of the invention also provides communication equipment, which comprises a mainboard 1 and the optical module detection device of the embodiment of the invention, wherein the mainboard 1 is connected with the optical module detection device.
Referring to fig. 3, fig. 3 is a flowchart of an optical module detection method according to an embodiment of the present invention, which is applied to the optical module detection apparatus shown in fig. 1, and the optical module detection method includes:
After the early warning signal is received, the data can be stopped being sent to the optical module. The early warning signal may be used to indicate that the light module is being unplugged by a user, or may be used to indicate that the light module is abnormally detached from the communication device. When the early warning signal is received, the data transmitted by the optical module can be switched to other optical modules for transmission, or other exception handling can be performed. For example, the exception handling may include controlling an alarm indicator to turn on, stopping sending data to the optical module, and resuming sending data to the optical module if it is detected that the accommodating groove is located at the first position again in the optical module slot within a preset time period. The preset time period may be 1s, 2s, 3s, and so on. In practical application, the main board may include a CPU, the touch switch may send an early warning signal to the CPU, and the CPU may stop sending data to the optical module after receiving the early warning signal.
In an embodiment of the present invention, the optical module detecting apparatus includes: an optical module socket including an entry end; the touch switch is positioned at the other end, far away from the inlet end, in the optical module slot; the accommodating groove is used for accommodating an optical module, and the optical module is connected with the mainboard through the accommodating groove; when the accommodating groove moves from a first position to a second position in the optical module slot, the optical module is disconnected from the mainboard, the first position is the position of the touch switch, and the second position is between the touch switch and the inlet end. And when the accommodating groove leaves the first position in the optical module slot, receiving an early warning signal sent by the touch switch. Therefore, before the optical module is disconnected with the mainboard, early warning can be carried out through the touch switch, and the completeness of data transmission of the optical module can be improved through early warning of the extraction of the optical module.
Optionally, the method further includes:
and stopping sending data to the optical module under the condition of receiving the early warning signal.
In this embodiment, when the warning signal is received, the transmission of data to the optical module is stopped. Therefore, by early warning of the pulling-out of the optical module, the data transmission to the optical module is stopped before the optical module is pulled out, and the data loss caused by the moment of pulling-out of the optical module is avoided.
An embodiment of the present invention further provides a communication device, where the communication device includes the optical module detection apparatus shown in fig. 1, and the communication device further includes:
and the receiving module is used for receiving the early warning signal sent by the touch switch when the accommodating groove leaves the first position in the optical module slot.
Optionally, the communication device further includes:
and the sending module is used for stopping sending data to the optical module under the condition of receiving the early warning signal.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
In the description of the embodiments of the present invention, it should be understood that the terms "longitudinal," "axial," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and are not to be construed as limiting the present invention. In the description of the embodiments of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the embodiments of the present invention, it should be noted that the terms "mounted," "disposed," and "connected" are to be construed broadly unless otherwise explicitly defined or limited. For example, the connection can be fixed, detachable or integrated; may be directly connected or indirectly connected through an intermediate. The fixed connection can be common technical schemes such as welding, threaded connection and clamping. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A light module detection device is applied to communication equipment, the communication equipment comprises a mainboard, and the light module detection device is characterized by comprising:
an optical module socket including an entry end;
the touch switch is positioned at the other end, far away from the inlet end, in the optical module slot;
the accommodating groove is used for accommodating an optical module, and the optical module is connected with the mainboard through the accommodating groove;
when the accommodating groove moves from a first position to a second position in the optical module slot, the optical module is disconnected from the mainboard, the first position is the position of the touch switch, and the second position is between the touch switch and the inlet end.
2. The optical module detection device according to claim 1, wherein the receiving slot is provided with a first sliding portion, the optical module slot is provided with a second sliding portion matching the first sliding portion, and the first sliding portion and the second sliding portion cooperate to move the receiving slot between the first position and the second position.
3. The optical module detecting device according to claim 1, wherein the accommodating groove includes a first communication interface and a second communication interface, the first communication interface is communicatively connected to the second communication interface, the first communication interface is connected to the main board by a connection line, and the second communication interface is used for being connected to the optical module.
4. The optical module detecting device as claimed in claim 1, wherein the optical module includes a third communication interface, and the third communication interface is connected to the second communication interface when the optical module moves to the target position in the accommodating groove.
5. The optical module detecting device as claimed in claim 4, wherein when the optical module moves to a target position in the receiving slot, a portion of the optical module is located outside the receiving slot.
6. The optical module detecting device according to claim 5, wherein a portion of the optical module located outside the receiving groove includes a protrusion, and when the optical module moves to a target position in the receiving groove, a recessed area is formed between the protrusion and the receiving groove;
the optical module detection device further includes: the limiting piece is movably connected with the optical module slot and comprises a clamping part, and the clamping part is matched with the recessed area;
when the accommodating groove moves to the first position in the optical module slot, the clamping part of the limiting part can rotate to the concave area.
7. A light module detection method applied to the light module detection apparatus according to any one of claims 1 to 6, the light module detection method comprising:
and when the accommodating groove leaves the first position in the optical module slot, receiving an early warning signal sent by the touch switch.
8. The light module detection method of claim 7, further comprising:
and stopping sending data to the optical module under the condition of receiving the early warning signal.
9. A communication device, characterized in that the communication device comprises the light module detecting apparatus of any of claims 1-6, the communication device further comprising:
and the receiving module is used for receiving the early warning signal sent by the touch switch when the accommodating groove leaves the first position in the optical module slot.
10. The communication device of claim 9, further comprising:
and the sending module is used for stopping sending data to the optical module under the condition of receiving the early warning signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010009103.XA CN113078943B (en) | 2020-01-06 | 2020-01-06 | Optical module detection device and method and communication equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010009103.XA CN113078943B (en) | 2020-01-06 | 2020-01-06 | Optical module detection device and method and communication equipment |
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| CN113078943A CN113078943A (en) | 2021-07-06 |
| CN113078943B true CN113078943B (en) | 2022-09-13 |
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| CN115459852A (en) * | 2021-06-08 | 2022-12-09 | 中兴通讯股份有限公司 | Optical module, communication single board, communication device and detection method for optical module pre-extraction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089202U (en) * | 1991-03-30 | 1991-11-20 | 梁建和 | Touching activated switch for anti-theft alarm |
| CN202143093U (en) * | 2011-07-20 | 2012-02-08 | 范德明 | Multi-interface exchanger with high adaptability |
| CN207938000U (en) * | 2018-03-29 | 2018-10-02 | 北京知道创宇信息技术有限公司 | A kind of blocking device for network interface |
-
2020
- 2020-01-06 CN CN202010009103.XA patent/CN113078943B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089202U (en) * | 1991-03-30 | 1991-11-20 | 梁建和 | Touching activated switch for anti-theft alarm |
| CN202143093U (en) * | 2011-07-20 | 2012-02-08 | 范德明 | Multi-interface exchanger with high adaptability |
| CN207938000U (en) * | 2018-03-29 | 2018-10-02 | 北京知道创宇信息技术有限公司 | A kind of blocking device for network interface |
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| CN113078943A (en) | 2021-07-06 |
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