CN112649754A - Network cable detection device - Google Patents
Network cable detection device Download PDFInfo
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- CN112649754A CN112649754A CN201910955703.2A CN201910955703A CN112649754A CN 112649754 A CN112649754 A CN 112649754A CN 201910955703 A CN201910955703 A CN 201910955703A CN 112649754 A CN112649754 A CN 112649754A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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Abstract
The embodiment of the application discloses net twine detection device, including main part and components of a whole that can function independently, this main part includes: the first processing unit, the first interface and the first wireless communication unit that are connected with first processing unit respectively. The split body comprises: the second processing unit, and respectively with second processing unit's second interface and the second wireless communication unit of being connected. Wherein the main body and the separate body wirelessly communicate through the first wireless communication unit and the second wireless communication unit; the first interface is used for being connected with one end of a network cable to be tested, and the second interface is used for being connected with the other end of the network cable to be tested; the first processing unit is used for sending a control instruction to the second processing unit through the first wireless communication unit; the second processing unit is used for sending the response information to the first processing unit through the second wireless communication unit. The detection device can realize the detection of the remote network cable by arranging the main body and the split body and connecting the two parts through wireless communication.
Description
Technical Field
The application relates to the technical field of vehicle engineering, in particular to a network cable detection device.
Background
With the maturation of ethernet technology and the application of switching technology, high-speed ethernet is growing rapidly in the field of industrial automation, and almost all fieldbus systems can eventually be connected to ethernet. Industrial ethernet (e.g., D-Code based M12 ethernet cable) has become a major direction for the development of control system networks, with great potential for development.
The D-Code-based M12 Ethernet cable is distributed in a cabinet and a train body of the train along with other communication cables on rail transit equipment.
However, since the M12 ethernet cable is wired first and then connected, the distance between two connectors of one ethernet cable may be very long, and a handheld ethernet cable detection device cannot be used for detection during network cable detection as in the case of the ordinary RJ45 ethernet cable, so how to implement detection of the long-distance M12 ethernet cable becomes a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The embodiment of the application provides a text network cable detection device, which is used for realizing the detection of a remote network cable.
In a first aspect, an embodiment of the present application provides a network cable detection device, including: main part and components of a whole that can function independently, the main part includes: first processing unit, respectively with first interface and the first wireless communication unit of first processing unit connection, the components of a whole that can function independently includes: the main body and the split body are in wireless communication through the first wireless communication unit and the second wireless communication unit;
the first interface is used for being connected with one end of a network cable to be tested, and the second interface is used for being connected with the other end of the network cable to be tested;
the first processing unit is used for sending a control instruction to the second processing unit through the first wireless communication unit and the second wireless communication unit;
the second processing unit is configured to send response information to the first processing unit through the second wireless communication unit and the first wireless communication unit.
In a possible implementation manner of the first aspect, the main body further includes: a user control interface connected with the first processing unit;
the user control interface is used for receiving a control instruction of a user and sending the control instruction input by the user to the first processing unit.
In one possible implementation manner of the first aspect, the user control interface includes: a start button and an end button;
the start button is used for starting the test of the network cable to be tested when being pressed;
the end button is used for stopping testing the network cable to be tested when being pressed.
In a possible implementation manner of the first aspect, the main body further includes a display screen connected to the first processing unit, and the display screen is configured to display data sent to the display screen by the first processing unit.
Optionally, the main body further comprises: a first power supply portion for supplying power to the main body.
Optionally, the main body further comprises: a first power button connected to the first power unit.
Optionally, the split further includes: a second power supply part for supplying power to the split body.
Optionally, the second power supply part includes a battery box and a battery.
Optionally, the split further includes: and a second power button connected to the second power unit.
In a possible implementation manner of the first aspect, the first processing unit and the second processing unit are configured to detect whether a pin in the network cable to be detected is short-circuited, and/or detect a connection sequence of pins at two ends of the network cable to be detected.
In a possible implementation manner of the first aspect, the apparatus further includes a first insulating housing covering the main body and a second insulating housing covering the sub-body.
In a second aspect, an embodiment of the present application provides a method for detecting a network cable, where the method is applied to the network cable detection apparatus described above, and the method includes:
connecting a first interface of the main body with one end of a network cable to be tested, and connecting a second interface of the split body with the other end of the network cable to be tested;
starting a network cable detection device;
controlling a network cable detection device to start detecting the network cable to be detected;
and when the end of the test is detected, displaying the test result.
The net twine detection device that this application embodiment provided, including main part and components of a whole that can function independently, this main part includes: the first processing unit, the first interface and the first wireless communication unit that are connected with first processing unit respectively. The split body comprises: the wireless communication device comprises a second processing unit, and a second interface and a second wireless communication unit which are respectively connected with the second processing unit. Wherein the main body and the separate body wirelessly communicate through the first wireless communication unit and the second wireless communication unit; the first interface is used for being connected with one end of a network cable to be tested, and the second interface is used for being connected with the other end of the network cable to be tested; the first processing unit is used for sending a control instruction to the second processing unit through the first wireless communication unit and the second wireless communication unit; the second processing unit is used for sending response information to the first processing unit through the second wireless communication unit and the first wireless communication unit. The detection device of the embodiment of the application is characterized in that the two parts, namely the main body and the split body, are connected through wireless communication, so that the main body and the split body are used for respectively detecting two ends of a network cable to be detected, further the detection of a remote network cable is realized, and the whole structure is simple, the manufacturing cost is low, and the operation is easy.
Drawings
Fig. 1 is a diagram of an application scenario according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a network cable detection device according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a body according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a body according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a split body according to an embodiment of the present application;
fig. 6 is a schematic diagram of a network cable detection process according to an embodiment of the present application.
Description of reference numerals:
10: a main body;
110: a first processing unit;
120: a first interface;
130: a first wireless communication unit;
140: a user control interface;
141: a start button;
142: an end button;
150: a display screen;
160: a first power button;
170: a first power supply unit;
180: a first insulating housing;
20: splitting;
210: a second processing unit;
220: a second interface;
230: a second wireless communication unit;
240: a second power button;
250: a second power supply unit;
260: a second insulating housing;
30: and (5) a network cable to be tested.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The M12 Ethernet cable has the following characteristics: adopting international mainstream standard, the protocol is open, different manufacturers' equipment is perfected, and the interconnection is easy and the interoperability is provided; remote access and remote diagnosis can be realized; different transmission media can be flexibly combined, such as coaxial cables, twisted-pair wires, optical fibers and the like; the network speed is high and can reach kilomega or even higher; the configuration of redundant connection is supported, the accessibility of data is strong, and the data has a plurality of paths to reach a destination; the system is easy to be almost unlimited, unpredictable faults can not occur due to the increase of the system, and a mature and reliable system safety system is provided; the investment cost can be reduced.
Based on the above characteristics of the M12 ethernet cable, the M12 ethernet cable is widely used in rail engineering, but in rail engineering, the distance between two joints of one ethernet cable may be very long, so how to implement detection of the M12 ethernet cable becomes a technical problem to be solved in the field.
The embodiment of the application provides a net twine detection device, and the device includes main part and components of a whole that can function independently part, and wherein wireless communication between main part and the components of a whole that can function independently is connected to the one end of the net twine that awaits measuring like this, and the components of a whole that can function independently is connected at the other end of the net twine that awaits measuring, can realize the detection to the net twine that awaits measuring. The network cable detection device is simple in structure and can effectively detect the remote network cable.
It should be noted that, for the convenience of clearly describing the technical solutions of the embodiments of the present application, the words "first", "second", and the like are used in the embodiments of the present application to distinguish the same items or similar items with basically the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.
The following describes in detail the network cable detection device provided in the embodiments of the present application with specific examples.
Fig. 1 is an application scenario diagram according to an embodiment of the present application, and fig. 2 is a schematic structural diagram of a network cable detection apparatus according to the embodiment of the present application.
As shown in fig. 1 and 2, the network cable detecting device includes a main body 10 and a split body 20, wherein the main body 10 is connected to one end of a network cable 30 to be detected, and the split body 20 is connected to the other end of the network cable 30 to be detected. The main body 10 and the split body 20 cooperate with each other to realize the detection of the network cable 30 to be detected.
It should be noted that the detection device provided in the embodiment of the present application may detect other network cables or even cable cables in addition to the M12 ethernet cable, and the detection process of the detection device is substantially consistent with that of the M12 ethernet cable.
In the embodiment of the present application, the network cable 30 to be tested is an M12 ethernet cable.
As shown in fig. 2, the main body 10 includes: the first processing unit 110, the first interface 120 and the first wireless communication unit 130, wherein the first interface 120 and the first wireless communication unit 130 are respectively connected with the first processing unit 110. The first processing unit 110 may control the first interface 120 and the first wireless communication unit 130.
The split 20 includes: a second processing unit 210, a second interface 220 and a second wireless communication unit 230, wherein the second interface 220 and the second wireless communication unit 230 are respectively connected with the second processing unit 210. The second processing unit 210 may control the second interface 220 and the second wireless communication unit 230.
The main body 10 and the separate body 20 perform wireless communication through the first wireless communication unit 130 and the second wireless communication unit 230. For example, the first processing unit 110 in the main body 10 transmits first information to the first wireless communication unit 130, the first wireless communication unit 130 transmits the first information to the second wireless communication unit 230 in the sub-body 20, and the second wireless communication unit 230 transmits the first information to the second processing unit 210 in the sub-body 20, so that the second processing unit 210 performs corresponding operations. For another example, the second processing unit 210 in the sub-body 20 transmits the second information to the second wireless communication unit 230, the second wireless communication unit 230 transmits the second information to the first wireless communication unit 130 in the main body 10, and the first wireless communication unit 130 transmits the second information to the first processing unit 110 in the main body 10, so that the first processing unit 110 performs a corresponding operation.
Optionally, the first wireless communication unit 130 and the second wireless communication unit 230 may be WIFI modules, or may also be modules that can implement wireless communication, such as bluetooth modules.
In the embodiment of the present application, the sub-body 20 is controlled by the main body 10, for example, after the main body 10 is opened, the main body 10 sends a control instruction (for example, a detection instruction) to the sub-body 20, so that the sub-body 20 is started, and the network cable 30 to be detected is detected. Further, the division 20 transmits the detected result to the main body 10 in the form of a response message.
In practical applications, one end of the network cable 30 to be tested is connected to the first interface 120 in the main body 10, and the other end of the network to be tested is connected to the second interface 220 in the sub-body 20. Specifically, a pin at one end of the network cable 30 to be tested is connected to a pin in the first interface 120, and a pin at the other end of the network cable 30 to be tested is connected to a pin in the second interface 220.
In one example, the M12 ethernet cable includes 8 cells, and an insulating layer wrapped around the outside of the 8 cells. If an 8-core live wire is up to 100 meters long, then the 8 cores inside the wire are likely to be slightly intertwined inside each other during routing.
The coil is an extreme condition of cable winding, the coil forms an inductance, the slight winding is a slight inductance, which can be called as an internal parasitic inductance in the communication cable, the inductance is an energy storage element, although reactive power is stored, according to a power triangle, the apparent power consumption is increased, and in fact, the power and energy of the port of the switch are absorbed, so that the power of the port cannot keep up with the consumption, and the network link establishment fails.
Therefore, in actual use, 4 cells in the M12 ethernet cable are usually cut off, and the remaining 4 cells are used for communication. For example, cores 4, 5, 7 and 8 in the M12 Ethernet cable are cut off, so that the internal parasitic inductance in the industrial Ethernet communication network cable can be reduced.
Based on the above description, the first interface 120 and the second interface 220 of the embodiment of the present application respectively include 4 pins, and the 4 pins in the first interface 120 and the second interface 220 are respectively connected to 4 pins in the network cable 30 to be tested, so as to detect whether the pins in the network cable 30 to be tested are short-circuited, and/or detect a connection sequence of the pins at two ends of the network cable 30 to be tested.
Through the above steps, after the main body 10 and the sub-body 20 are connected to the network cable 30 to be tested, respectively, the first processing unit 110 in the main body 10 can send a control instruction to the second processing unit 210 in the sub-body 20 through the first wireless communication unit 130 and the second wireless communication unit 230, where the control instruction is used to instruct the sub-body 20 to start testing the network cable 30 to be tested. The second processing unit 210 in the sub-body 20 tests the network cable 30 to be tested to obtain a test result, and sends the test result as response information to the first processing unit 110 in the main body 10 through the second wireless communication unit 230 and the first wireless communication unit 130. The first processing unit 110 can obtain the detection result of the network cable 30 to be detected according to the response information and the test information thereof.
The detection result of the network cable 30 to be detected may be that the battery cells connected to the main body 10 and the split body 20 are intact, and there is no problem of short circuit or mutual short circuit.
Optionally, when the detection result is that the battery cell is intact and not shorted, the inspection result may further include: the connection sequence of the pins of the main body 10, the battery cell and the pins of the split body 20. For example, pin 1 of the main body 10 is connected to one end pin of the battery cell 2, and the other end pin of the battery cell 2 is connected to pin 1 of the split body 20.
The net twine detection device that this application embodiment provided, including main part 10 and components of a whole that can function independently 20, this main part 10 includes: a first processing unit 110, a first interface 120 and a first wireless communication unit 130, which are connected to the first processing unit 110, respectively. The split 20 includes: a second processing unit 210, and a second interface 220 and a second wireless communication unit 230 respectively connected with the second processing unit 210. Wherein the main body 10 and the separate body 20 wirelessly communicate through the first wireless communication unit 130 and the second wireless communication unit 230; the first interface 120 is used for being connected with one end of the network cable 30 to be tested, and the second interface 220 is used for being connected with the other end of the network cable 30 to be tested; the first processing unit 110 is configured to send a control instruction to the second processing unit 210 through the first wireless communication unit 130 and the second wireless communication unit 230; the second processing unit 210 is configured to send response information to the first processing unit 110 through the second wireless communication unit 230 and the second wireless communication unit 130. That is, the detection device of the embodiment of the present application is provided with two parts, namely, the main body 10 and the split body 20, which are connected through wireless communication, so that the main body 10 and the split body 20 are used for respectively detecting two ends of the network cable 30 to be detected, and further, the detection of the long-distance network cable is realized, and the whole structure is simple, the manufacturing cost is low, and the operation is easy.
On the basis of the network cable detection device shown in fig. 2, as shown in fig. 3, the main body 10 of the embodiment of the present application further includes: and the user control interface 140, where the user control interface 140 is connected to the first processing unit 110, and the user control interface 140 is configured to receive a control instruction from a user and send the control instruction input by the user to the first processing unit 110, so that the first processing unit 110 performs a corresponding operation according to the control instruction input by the user.
Alternatively, the user control interface 140 may be a touch screen, and a user may output a control command through the touch screen.
Optionally, the user control interface may also be a voice module, where the voice module receives voice information input by a user, converts the voice information into a control instruction, and sends the control instruction to the first processing unit 110.
Alternatively, the user control interface 140 may be a button.
As shown in fig. 4, the user control interface 140 includes: a start button 141 and an end button 142;
the start button 141 is used to start the test of the network cable 30 to be tested when being pressed. For example, the user presses the start button 141, and the start button 141 outputs first information, for example, a high level signal, to the first processing unit 110 after detecting the user pressing. After the first processing unit 110 obtains the first information, it may be determined that the first information is used to instruct the network cable detecting device to start detecting the network cable 30 to be detected. The first processing unit 110 detects the network cable 30 according to a preset detection program.
The end button 142 is used for stopping the test of the network cable 30 to be tested when being pressed. For example, the user presses the end button 142, and the end button 142 outputs second information, for example, a low signal to the first processing unit 110 after detecting the user pressing. After the first processing unit 110 obtains the second information, it may be determined that the second information is used to instruct the network cable detecting device to stop detecting the network cable 30 to be detected, and then the first processing unit 110 stops detecting the network cable 30 to be detected.
In some embodiments, the first processing unit 110 may output the detection result of the network cable 30 to be detected to the user after finishing the detection of the network cable 30 to be detected.
Optionally, the first processing unit 110 may output the detection result of the network cable 30 to be detected to the user in a voice manner.
Optionally, as shown in fig. 4, the main body 10 further includes a display 150, the display 150 is connected to the first processing unit 110, and the display 150 is configured to display data sent to the display 150 by the first processing unit 110. For example, the first processing unit 110 outputs the detection result of the network cable 30 to be detected to the display 150, and the display 150 displays the detection result to the user.
With continued reference to fig. 4, the body 10 further includes: a first power supply part 170, the first power supply part 170 being used to supply power to the main body 10. Specifically, the first power supply part 170 is used to supply power to the first processing unit 110 and the first wireless communication unit 130 in the main body 10.
As shown in fig. 4, the main body 10 further includes a first power button 160 connected to a first power unit 170. The user turns on and off the main body 10 by pressing the first power button 160.
In one connection mode, the first power supply unit 160 is connected to the first processing unit 110, the first power supply unit 160 supplies power to the first processing unit 110, and the first processing unit 110 supplies power to the first wireless communication unit 130.
In another connection mode, the first power supply part 160 is connected to the first processing unit 110 and the first wireless communication unit 130 respectively, and is used for supplying power to the first processing unit 110 and the first wireless communication unit 130 respectively.
In one example, the first power supply part 160 includes a battery case and a battery.
With continued reference to fig. 4, the exterior of the main body 10 is covered with a first insulating case 180, and the first insulating case 180 serves to protect the components in the main body 10.
Alternatively, the start button 141, the end button 142, the power button, and the display 150 may be disposed on the first insulating case 180.
Optionally, the main body 10 further includes a first memory, and the first memory is used for storing a detection instruction, and the first processor unit 110 may read the detection instruction from the first memory, and implement detection on the network cable 30 to be detected according to the detection instruction.
In addition to the network cable detection device shown in fig. 2, as shown in fig. 5, the sub-body 20 according to the embodiment of the present invention further includes: a second power supply part 250, the second power supply part 250 for supplying power to the division body 20,
specifically, the second power supply part 250 is used to supply power to the second processing unit 210 and the second wireless communication unit 230 in the separate body 20.
In one connection mode, the second power supply unit 250 is connected to the second processing unit 210, the second power supply unit 250 supplies power to the second processing unit 210, and the second processing unit 210 supplies power to the second wireless communication unit 230.
In another connection mode, the second power supply part 250 is respectively connected with the second processing unit 210 and the second wireless communication unit 230, and is used for respectively supplying power to the second processing unit 210 and the second wireless communication unit 230.
In one example, the second power supply portion 250 includes a battery compartment and a battery.
As shown in fig. 5, the sub-body 20 further includes a second power button 240 connected to the power unit 250. The user activates and deactivates the bays 20 by pressing the second power button 240.
With continued reference to fig. 5, the exterior of the division body 20 is covered with a second insulating housing 260, and the second insulating housing 260 is used for protecting the components in the division body 20.
Optionally, the sub-body 20 may further include a second memory, where the second memory is used to store a detection instruction, and the second processing unit 210 may read the detection instruction from the second memory, and implement detection on the network cable 30 to be detected according to the detection instruction.
On the basis of the above-described net twine detection apparatus shown in fig. 1 to 5, the detection process of the net twine detection apparatus will be described below.
Fig. 6 is a schematic diagram of a network cable detection process according to an embodiment of the present application. As shown in fig. 6, the method of the embodiment of the present application may include:
s101, connecting a first interface of the main body with one end of a network cable to be tested, and connecting a second interface of the split type with the other end of the network cable to be tested.
For a specific connection process, reference may be made to the description of the foregoing embodiments, which are not described herein again.
And S102, starting the network cable detection device.
Specifically, the main body and the split body are opened by pressing a power button on the main body and a power button on the split body.
S103, controlling the network cable detection device to start detecting the network cable to be detected.
Specifically, a start button on the main body is pressed, a first processing unit in the main body sends test start information to a second processing unit in the split body through a first wireless communication unit and a second wireless communication unit, and the main body and the split body start to test the network cable to be tested.
And S104, when the test is detected to be finished, displaying the test result.
Optionally, after the network cable detection device detects the result, it may send a prompt message, such as a ring and a light, to prompt the user that the test is finished, and the user may observe the detection result from the display screen.
According to the embodiment of the application, a user can detect the remote network cable by using the network cable detection device through the method, the detection process is simple, and the detection result is accurate.
Finally, when the user does not perform the test any more, the power switch on the main body and the split body can be turned off.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A network cable detection device, comprising: main part and components of a whole that can function independently, the main part includes: first processing unit, respectively with first interface and the first wireless communication unit of first processing unit connection, the components of a whole that can function independently includes: the main body and the split body are in wireless communication through the first wireless communication unit and the second wireless communication unit;
the first interface is used for being connected with one end of a network cable to be tested, and the second interface is used for being connected with the other end of the network cable to be tested;
the first processing unit is used for sending a control instruction to the second processing unit through the first wireless communication unit and the second wireless communication unit;
the second processing unit is configured to send response information to the first processing unit through the second wireless communication unit and the first wireless communication unit.
2. The apparatus of claim 1, wherein the body further comprises: a user control interface connected with the first processing unit;
the user control interface is used for receiving a control instruction of a user and sending the control instruction input by the user to the first processing unit.
3. The apparatus of claim 2, wherein the user control interface comprises: a start button and an end button;
the start button is used for starting the test of the network cable to be tested when being pressed;
the end button is used for stopping testing the network cable to be tested when being pressed.
4. The device of any one of claims 1-3, wherein the body further comprises a display screen coupled to the first processing unit, the display screen configured to display data sent to the display screen by the first processing unit.
5. The device of any one of claims 1-3, wherein the body further comprises: a first power supply portion for supplying power to the main body.
6. The apparatus of claim 5, wherein the body further comprises: a first power button connected to the first power portion.
7. The device of any one of claims 1-3, wherein the sub-body further comprises: a second power supply part for supplying power to the split body.
8. The device of claim 6, wherein the first power supply portion includes a battery compartment and a battery.
9. The apparatus of claim 1,
the first processing unit and the second processing unit are used for detecting whether the pins in the network cable to be detected are short-circuited or not and/or detecting the connection sequence of the pins at two ends of the network cable to be detected.
10. The apparatus of claim 1, further comprising a first insulating housing disposed over the body and a second insulating housing disposed over the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910955703.2A CN112649754A (en) | 2019-10-09 | 2019-10-09 | Network cable detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910955703.2A CN112649754A (en) | 2019-10-09 | 2019-10-09 | Network cable detection device |
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| CN112649754A true CN112649754A (en) | 2021-04-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203037295U (en) * | 2013-01-29 | 2013-07-03 | 山东电力集团公司电力科学研究院 | Field converting equipment detecting device for electric automobile charging and converting power station |
| CN103513140A (en) * | 2012-06-15 | 2014-01-15 | 鸿富锦精密工业（深圳）有限公司 | Network cable testing device |
| CN208270988U (en) * | 2018-05-11 | 2018-12-21 | 大连金盛义电子科技有限公司 | A kind of mobile communication control system based on wireless technology |
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2019
- 2019-10-09 CN CN201910955703.2A patent/CN112649754A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513140A (en) * | 2012-06-15 | 2014-01-15 | 鸿富锦精密工业（深圳）有限公司 | Network cable testing device |
| CN203037295U (en) * | 2013-01-29 | 2013-07-03 | 山东电力集团公司电力科学研究院 | Field converting equipment detecting device for electric automobile charging and converting power station |
| CN208270988U (en) * | 2018-05-11 | 2018-12-21 | 大连金盛义电子科技有限公司 | A kind of mobile communication control system based on wireless technology |
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