CN208315027U - A kind of maintenance of nuclear - Google Patents
A kind of maintenance of nuclear Download PDFInfo
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- CN208315027U CN208315027U CN201721748437.9U CN201721748437U CN208315027U CN 208315027 U CN208315027 U CN 208315027U CN 201721748437 U CN201721748437 U CN 201721748437U CN 208315027 U CN208315027 U CN 208315027U
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Abstract
The utility model discloses a kind of maintenance of nuclear, belong to electronic information technical field.The maintenance of nuclear is applied to the maintenance training of electronic information, comprising: terminal device and multiple failure triggers.Multiple failure triggers are coupled with terminal device respectively.Each failure trigger is set at a node in the truck of electronic information, and failure is arranged at the node with the faulting instruction sent according to terminal device.Maintenance of nuclear provided by the utility model can combine actual electronic information well, so that maintenance training has authenticity, the normal use of practical electronic information is not influenced again, while failure can also be easily and flexibly set, to reach better training effect.
Description
Technical field
The utility model relates to electronic information technical field more particularly to a kind of maintenance of nuclear.
Background technique
With the development of science and technology, the technology content of electronic information is higher and higher, and the technical guarantee of system becomes
Even more important, the requirement to maintenance personal is also continuously improved.Carrying out maintenance training can make maintenance personal be familiar with various failures
Detection and exclusion, facilitate working principle and performance that maintenance personal further appreciates that system, improve maintenance personal's judgement and place
Manage the ability and experience of failure.Currently, the development of maintenance training is there are mainly two types of form: first is that directly in systems in practice into
Row；Second is that the maintenance of nuclear using simulation carries out.Training, Training scene and reality are directly repaired in systems in practice
It is identical to repair scene, compares closing to reality.But lack flexibility and simplicity when carrying out fault setting, and be easy to cause
The damage of system influences the normal use of system, and training effect is also unobvious.And it is carried out using the maintenance of nuclear of simulation
Maintenance training, although failure can easily and flexibly be arranged, virtual environment can not react the reality of electronic information completely
Border operating condition, maintenance training lack authenticity, and gap the case where encountering in practical maintenance, so that maintenance personal is in reality
It is still very not familiar in the maintenance of border.
Utility model content
The embodiment of the present application effectively improves the above problem by providing a kind of maintenance of nuclear.
The application provides following technical solution by the embodiment of the application:
This application provides a kind of maintenance of nuclear, applied to the maintenance training of electronic information, the e-mail
Breath system includes: multiple single devices, is connected between the single devices by cable.The maintenance of nuclear includes: terminal
Equipment and multiple failure triggers.Multiple failure triggers are coupled with the terminal device respectively.Each failure touching
Hair device is set on the cable in the electronic information, with the faulting instruction that is sent according to the terminal device in institute
State the corresponding position setting failure of cable.
Preferably, above-mentioned failure trigger includes: controller and the instruction setting event for being sent according to the controller
The fault setting module of barrier.The controller is coupled with the terminal device.The fault setting module include signal input part,
Signal output end and Fault Control end.The Fault Control end is coupled with the controller, the signal of the fault setting module
Input terminal and signal output end are respectively coupled on the cable, so as to be transferred to the letter of the cable in the electronic information
Number it is transferred to Subsequent passes again after the fault setting module.
Preferably, above-mentioned fault setting module includes fault setting switch, fault setting switch include the first contact,
Second contact, third contact and for controlling first contact and second contact according to external signal and the third is touched
The switch control terminal of conducting and disconnection between point.First contact is coupled with the signal input part, the third contact
It is coupled with the signal output end, the switch control terminal is coupled with the Fault Control end.
Preferably, above-mentioned fault setting module further includes the processing unit for exporting after the data modification by input.Institute
Stating fault setting switch further includes the 4th contact, the switch control terminal be used to be controlled according to external signal first contact with
Conducting and disconnection between second contact, the third contact and the 4th contact.The input of the processing unit
End and the 4th coupling contact points, the output end of the processing unit are coupled with the signal output end.
Preferably, above-mentioned processing unit is phase inverter.
Preferably, above-mentioned failure trigger further includes the reset button for releasing failure, the reset button with it is described
Controller coupling
Preferably, above-mentioned failure trigger includes battery and charger.
Preferably, mode couples above-mentioned failure trigger by wireless communication with the terminal device.
Preferably, above-mentioned maintenance of nuclear further includes the first wireless communication module.It is provided in the failure trigger
For receiving the second wireless communication module of the faulting instruction that the terminal device is sent.First wireless communication module and institute
Terminal device coupling is stated, first wireless communication module is coupled with second wireless communication module.
Preferably, the both ends of the every cable in above-mentioned electronic information are respectively arranged with the failure touching
Send out device.
The cable of electronic information is arranged in failure trigger by maintenance of nuclear provided by the embodiments of the present application
On, faulting instruction is sent to corresponding failure trigger according to maintenance training content by terminal device, failure trigger according to
Failure is arranged in the corresponding position of the cable in the faulting instruction received, in order to which maintenance personal repairs training.In this way
Actual electronic information can be combined well, so that maintenance training has authenticity, and do not influence practical electronic information
The normal use of system, while failure can also be easily and flexibly set, to reach better training effect.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model, right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is a kind of a kind of structural block diagram of maintenance of nuclear provided by the embodiment of the utility model；
Fig. 2 is a kind of application scenarios schematic diagram provided by the embodiment of the utility model；
Fig. 3 is a kind of another structural block diagram of maintenance of nuclear provided by the embodiment of the utility model；
Fig. 4 is a kind of a kind of structural block diagram of failure trigger provided by the embodiment of the utility model；
Fig. 5 is a kind of structural schematic diagram of the fault setting module in Fig. 3；
Fig. 6 is another structural schematic diagram of the fault setting module in Fig. 3；
Fig. 7 is a kind of structural schematic diagram of safety defense monitoring system in the prior art；
Fig. 8 is the schematic diagram that failure trigger is accessed in safety defense monitoring system shown in Fig. 7.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical solutions in the embodiments of the present invention are clearly and completely described, it is clear that described
Embodiment is only the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " coupling ", " connection " shall be understood in a broad sense, can also be by between intermediary for example, " connection " can be and be directly connected to
It connects in succession, can be the connection inside two elements.It for the ordinary skill in the art, can be as the case may be
Understand the concrete meaning of above-mentioned term in the present invention.
Herein, relational terms such as first and second and the like be used merely to by an entity or operation with it is another
One entity or operation distinguish, and without necessarily requiring or implying between these entities or operation, there are any this reality
Relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
Fig. 1 is please referred to, the utility model embodiment provides a kind of maintenance of nuclear 1, is applied to electronic information
Maintenance training.Electronic information includes: multiple single devices, and is connected between single devices by cable.Maintenance instruction
Practicing system 1 includes: terminal device 10 and multiple failure triggers 11.Multiple failure triggers 11 respectively with 10 coupling of terminal device
It closes.Each failure trigger 11 is set on the cable in the electronic information.Wherein, terminal device 10 is used for according to pre-
If maintenance training content send faulting instruction to corresponding failure trigger 11, failure trigger 11 is according to the failure received
It instructs and failure is set in the corresponding position of cable, in order to which trainee carries out corresponding maintenance training.
It should be noted that the input terminal of each single devices in electronic information can be set in failure trigger 11
And/or output end, alternatively, the both ends of the every connection cables in electronic information also can be set.In practical applications, may be used
Failure trigger 11 is arranged in any position of the truck of electronic information as needed.Certainly, in order to make failure
More flexible multiplicity is set, a failure triggering can be respectively set at the both ends of every connection cables in electronic information
Device 11.
The operation logic of this maintenance of nuclear 1 are as follows: under original state, i.e., failure trigger 11 does not receive faulting instruction
When, failure trigger 11 does not work, and is equivalent to a connection cables.At this point, the data for being transferred to the failure trigger 11 are direct
It is output in subsequent truck.Referred to when failure trigger 11 receives terminal device 10 according to the failure that training content is sent
When enabling, which triggers failure according to the faulting instruction received at the respective nodes of electronic information, from
And generate corresponding phenomenon of the failure.Trainee goes to check and measure corresponding single in the electronic information according to phenomenon of the failure
Body equipment or connection cables finally by fault location to some specific single devices or connection cables, and are reset corresponding
Failure trigger 11, debugging, that is, complete this time train.
For example, the input terminal and output end of single devices 21,22 are respectively connected to one in application scenarios as shown in Figure 2
A failure trigger 11.Terminal device 10 generates faulting instruction according to training content, and faulting instruction is sent to one of them
Or multiple failure triggers 11.Failure trigger 11 triggers failure according to the faulting instruction received, so that by respective nodes
Data can not correctly be transferred to target device.
In the present embodiment, terminal device 10 be can be independently of the computer equipment other than electronic information, can also be with
It is the operating terminal in electronic information, needs to be arranged with specific reference to practical application.And the specific structure of failure trigger 11
It can be arranged according to fault type required for training.
As shown in figure 3, as an implementation, failure trigger 11 includes: controller 110 and fault setting module
120.Wherein, controller 110 is coupled with terminal device 10.Fault setting module 120 includes signal input part in, signal output end
Out and Fault Control end ctr.The Fault Control end ctr of fault setting module 120 is coupled with controller 110.Fault setting module
120 signal input part in and signal output end out is respectively coupled in the truck at respective nodes, so that electronic information
The signal that the node is transferred in system is transferred to follow-up access again after fault setting module 120.Controller 110 receives
After the faulting instruction sent to terminal device 10, fault setting module 120 is sent a control signal to according to the faulting instruction, is controlled
Failure is arranged in fault setting module 120 processed at corresponding node.
In the present embodiment, failure trigger 11 can be coupled with terminal device 10 by cable, can also use channel radio
Letter mode couples.In view of the complexity of wiring, as a kind of preferable embodiment, failure trigger 11 and terminal device 10
It mode can couple by wireless communication.For example, the communications such as bluetooth, Zigbee can be used.
When failure trigger 11 and terminal device 10 can mode couples by wireless communication when, maintenance of nuclear 1 is also
Including the first wireless communication module 101, failure trigger 11 further includes the faulting instruction sent for receiving terminal apparatus 10
Second wireless communication module 130, as shown in Figure 3.First wireless communication module 101 is coupled with terminal device 10, the second channel radio
Letter module 130 is coupled with the controller 110 of failure trigger 11, the first wireless communication module 101 and the second wireless communication module
130 couplings.Terminal device 10 sends faulting instruction by the first wireless communication module 101, and failure trigger 11 is logical by second
Believe the faulting instruction that module receiving terminal apparatus 10 is sent.Wherein, the first wireless communication module 101 and the second wireless communication module
130 can be bluetooth module, Zigbee module or other wireless communication modules.
In addition, after trainee is by investigation fault location reset instruction can be sent by terminal device 10
To the controller 110 of failure trigger 11, controller 110 sends reset signal to fault setting module after receiving reset instruction
120, control fault setting module 120 returns to original state.
Above-mentioned failure trigger 11 can also include the reset button 140 for releasing failure for operating easily, reset
Button 140 is coupled with controller 110, as shown in Figure 4.By reset button 140, failure trigger 11 can be directly reset, is made
It obtains failure trigger 11 to restPose, releases failure.
Certainly, other than aforesaid way, failure trigger 11 can also be reset using other modes.For example, it is also possible to logical
The handheld terminal being wirelessly connected with failure trigger 11 is crossed, sends reset instruction to corresponding failure trigger 11, so that failure
Trigger 11 restPoses, and releases failure.In the present embodiment, handheld terminal can be smart phone, palm PC, plate
Computer, remote controler etc..
In the present embodiment, controller 110 can be the core having data processing function such as single-chip microcontroller, DSP, ARM or FPGA
Piece.The specific structure of fault setting module 120 is arranged according to required defect content.The present embodiment is enumerated in two kinds of failures
Hold, one is data to shut off, and another kind is data modification.It is that will be transmitted to the data of failure trigger 11 to shut off that data, which are shut off,
Make the data that can not continue to transmit.Data modification is to will be transmitted to the data of failure trigger 11 to modify, after output modifications
Data.
Specifically, fault setting module 120 provided in this embodiment can be to shut off the module of function with data.This
When, as an implementation, fault setting module 120 may include fault setting switch 121a, as shown in Figure 5.Failure is set
Setting switch 121a includes the first contact a1, the second contact b1, third contact c1 and switch control terminal t1.First contact a1 with it is above-mentioned
Signal input part in coupling, third contact c1 couples with above-mentioned signal output end out, switch control terminal t1 and above-mentioned event
Hinder control terminal ctr coupling.Wherein, switch control terminal t1 be used for according to external signal control the first contact a1 and the second contact b1 and
Conducting and disconnection between the c1 of third contact.
Under first original state, the first contact a1 and third contact c1 are on state, the first contact a1 and the second contact
B1 is off-state, and failure trigger 11 is equivalent to single line cable at this time.It is sent when switch control terminal t1 receives controller 110
First control signal when, the first contact a1 of control and third contact c1 are disconnected, and the first contact a1 is connected with the second contact b1, this
When, failure trigger 11 shuts off the data at corresponding node, so that can not continue to transmit by the data at the node, electronics
Information system failure phenomenon.It should be noted that can be sent by controller 110 multiple when needing to release the failure
For position signal to the switch control terminal t1 of fault setting switch 121a, it is initial that control fault setting switch 121a is restored to above-mentioned first
State.
Further, fault setting module 120 provided in this embodiment or have the function of that data are shut off and data
Modify the module of function.As shown in fig. 6, as another embodiment, above-mentioned fault setting module 120 is opened including fault setting
Close 121b and processing unit 122.Processing unit 122 has the function of changing data, for exporting after the data modification by input.
At this point, fault setting switch 121b includes the first contact a2, the second contact b2, third contact c2, the 4th contact d2 and switch control
End t2 processed.Switch control terminal t2 is coupled with above-mentioned Fault Control end ctr, the first contact a2 and above-mentioned signal input part in coupling
It closes, third contact c2 is coupled with above-mentioned signal output end out.4th contact d2 is coupled with the input terminal of processing unit 122, place
The output end of reason unit 122 is coupled with signal output end out.At this point, switch control terminal t2 is used for according to external signal control the
Conducting and disconnection between one contact a2 and the second contact b2, third contact c2 and the 4th contact d2.
Under second original state, the first contact a2 and third contact c2 are on state, the first contact a2 and the second contact
B2 is off-state, and the first contact a2 and the 4th contact d2 are off-state, and failure trigger 11 is equivalent to single line cable at this time.
When switch control terminal t2 receives the first control signal of the transmission of controller 110, the first contact a2 of control and third contact c2
It is disconnected with the 4th contact d2, and the first contact a2 is connected with the second contact b2, at this point, failure trigger 11 will be at corresponding node
Data shut off, i.e., at the node break down.When switch control terminal t2 receives the second control signal of the transmission of controller 110
When, the first contact a2 of control is disconnected with the second contact b2 and third contact c2, and the first contact a2 is connected with the 4th contact d2,
At this point, change is transferred to the data at corresponding node by failure trigger 11, the result after change is transferred to electronic information system
It unites in the follow-up access of the node.It should be noted that can be sent out by controller 110 when needing to release the failure
It send reset signal to the switch control terminal t2 of fault setting switch 121b, controls fault setting switch 121b and be restored to above-mentioned second
Original state.
It is understood that according to actual needs, fault setting module 120 provided in this embodiment may be only to have
The module of data modification function.At this point, fault setting module 120 includes above-mentioned processing unit 122, the processing unit 122
Input terminal is coupled with the signal input part in of fault setting module 120, the output end and fault setting module of the processing unit 122
120 signal output end out coupling.
In the present embodiment, in order to simplify the structure of failure trigger 11, above-mentioned processing unit 122 can be phase inverter.
Certainly, in addition to this, processing unit 122 or multiplier or other chips having data processing function.Above-mentioned event
Barrier setting switch 121a, 121b can be using controllable switching devices such as silicon-controlled, relays.
In addition, other than two kinds of above-mentioned defect contents, in the other embodiments of the utility model, fault setting module
120 also can produce other defect contents, with specific reference to needing to be arranged.
In order to facilitate the use of failure trigger 11, failure trigger 11 can also include battery, charger and with phase
The interface for answering equipment and cable to connect.
A kind of illustrated specific electronic information proposes the utility model embodiment as application scenarios below
The working principle of the maintenance of nuclear of confession is illustrated.
For example, Fig. 7 shows a kind of safety defense monitoring system 30.The safety defense monitoring system 30 include monitoring management platform 310,
First network hard disk video recorder 311, the second network hard disk video recorder 312, video encoder 313, first network video camera 314,
Second web camera 315, third web camera 316, analog video camera 317, video wall decoder 318 and video wall 319.
The digital video data of acquisition is sent first network HD recording by first network video camera 314 and the second network shooting 315
The digital video data of acquisition is sent the second network hard disk video recorder 312 by machine 311, third web camera 316, and simulation is taken the photograph
The analog video data that camera 317 acquires is sent to the second network hard disc after being converted into digital signal by video encoder 313
Video recorder 312.Monitoring management platform 310 will record in first network hard disk video recorder 311 and the second network hard disk video recorder 312
Video data be sent to video wall decoder 318, shown on video wall 319 after decoding.
When maintenance of nuclear provided in this embodiment is applied to the maintenance training of the safety defense monitoring system, specifically,
As shown in figure 8, the input terminal and/or output end of each single devices access a failure triggering in safety defense monitoring system 30
Device 11, each small circle in Fig. 8 represent a failure trigger 11, be expressed as A, B, C, D, E, F, G, H, I, J, K, L,
M, N, O, P, Q and R.In addition, each failure trigger 11 is coupled with terminal device 10.Wherein, terminal device 10 can be peace
Computer equipment other than anti-monitoring system 30 is also possible to the monitoring management platform 310 of safety defense monitoring system 30.At this point, can
Failure is arranged in corresponding position by the transmission faulting instruction of terminal device 10 to any one or more failure triggers 11,
To generate phenomenon of the failure.For example, trainee has found that video wall 319 can not show the view of some video camera in maintenance training
Frequently, by checking all devices and connection cables on from video wall 319 to the truck of the video camera, fault location
Afterwards, corresponding failure trigger 11 is reset, failure is released, safety defense monitoring system is made to restore to work normally.Certainly, positioning event is checked
The process of barrier also contributes to the structure that trainee is much more familiar with safety defense monitoring system, reaches better maintenance training effect.
In conclusion maintenance of nuclear 1 provided by the embodiments of the present application, failure trigger 11 is arranged in electronic information
In the truck of system, faulting instruction is sent to corresponding failure trigger according to maintenance training content by terminal device 10
11, failure is arranged according to the faulting instruction received in failure trigger 11 at corresponding node, in order to trainee's progress
Maintenance training.Actual electronic information can be combined well in this way so that maintenance training have authenticity, facilitate by
Instruction personnel are familiar with and understand actual electronic information, and do not influence the normal use of practical electronic information, simultaneously also
Failure can be easily and flexibly set, to reach better training effect.
Although the preferred embodiment of the utility model has been described, once a person skilled in the art knows basic
Creative concept, then additional changes and modifications may be made to these embodiments.It is wrapped so the following claims are intended to be interpreted as
It includes preferred embodiment and falls into all change and modification of the scope of the utility model.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (10)
1. a kind of maintenance of nuclear, which is characterized in that applied to the maintenance training of electronic information, the electronic information system
System includes: multiple single devices, is connected between the single devices by cable, the maintenance of nuclear includes: that terminal is set
Standby and multiple failure triggers；
Multiple failure triggers are coupled with the terminal device respectively, and each failure trigger is set to the electronics
On the cable in information system, with the faulting instruction that is sent according to the terminal device in the corresponding position of the cable
Failure is set.
2. the system as claimed in claim 1, which is characterized in that the failure trigger includes: controller and is used for according to institute
State the fault setting module of the instruction setting failure of controller transmission；
The controller is coupled with the terminal device；
The fault setting module includes signal input part, signal output end and Fault Control end, the Fault Control end and institute
Controller coupling is stated, the signal input part and signal output end of the fault setting module are respectively coupled on the cable, with
The signal for being transferred to the cable in the electronic information is set to be transferred to Subsequent passes again after the fault setting module.
3. system as claimed in claim 2, which is characterized in that the fault setting module includes fault setting switch；
Fault setting switch includes the first contact, the second contact, third contact and for described in being controlled according to external signal
The switch control terminal of conducting and disconnection between first contact and second contact and the third contact, first contact
It is coupled with the signal input part, the third contact is coupled with the signal output end, and the switch control terminal is the event
Hinder control terminal.
4. system as claimed in claim 3, which is characterized in that the fault setting module further includes the data for will input
The processing unit exported after modification；
The fault setting switch further includes the 4th contact, and the switch control terminal is used for according to external signal control described first
Conducting and disconnection between contact and second contact, the third contact and the 4th contact, the processing unit
Input terminal and the 4th coupling contact points, the output end of the processing unit couples with the signal output end.
5. system as claimed in claim 4, which is characterized in that the processing unit is phase inverter.
6. system as claimed in claim 2, which is characterized in that the failure trigger further includes the reset for releasing failure
Button, the reset button are coupled with the controller.
7. the system as claimed in claim 1, which is characterized in that the failure trigger includes battery and charger.
8. the system as claimed in claim 1, which is characterized in that the failure trigger and the terminal device pass through channel radio
Letter mode couples.
9. system as claimed in claim 8, which is characterized in that the system also includes the first wireless communication module, the event
It is provided with the second wireless communication module for receiving the faulting instruction that the terminal device is sent in barrier trigger, described first
Wireless communication module is coupled with the terminal device, first wireless communication module and the second wireless communication module coupling
It closes.
10. the system as claimed in claim 1, which is characterized in that two of the every cable in the electronic information
End is respectively arranged with the failure trigger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721748437.9U CN208315027U (en) | 2017-12-12 | 2017-12-12 | A kind of maintenance of nuclear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721748437.9U CN208315027U (en) | 2017-12-12 | 2017-12-12 | A kind of maintenance of nuclear |
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| Publication Number | Publication Date |
|---|---|
| CN208315027U true CN208315027U (en) | 2019-01-01 |
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ID=64731598
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721748437.9U Expired - Fee Related CN208315027U (en) | 2017-12-12 | 2017-12-12 | A kind of maintenance of nuclear |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706568A (en) * | 2019-10-31 | 2020-01-17 | 广州供电局有限公司 | Cable fault simulation device and system |
| WO2020168639A1 (en) * | 2019-02-21 | 2020-08-27 | 深圳市慧嘉智科技有限公司 | Interactive control method and system |
-
2017
- 2017-12-12 CN CN201721748437.9U patent/CN208315027U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020168639A1 (en) * | 2019-02-21 | 2020-08-27 | 深圳市慧嘉智科技有限公司 | Interactive control method and system |
| CN110706568A (en) * | 2019-10-31 | 2020-01-17 | 广州供电局有限公司 | Cable fault simulation device and system |
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Granted publication date: 20190101 Termination date: 20191212 |