CN104504848B - A kind of sub- monitor system of distribution pole ascending operation real training safety auxiliary electrical - Google Patents
A kind of sub- monitor system of distribution pole ascending operation real training safety auxiliary electrical Download PDFInfo
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- CN104504848B CN104504848B CN201410777493.XA CN201410777493A CN104504848B CN 104504848 B CN104504848 B CN 104504848B CN 201410777493 A CN201410777493 A CN 201410777493A CN 104504848 B CN104504848 B CN 104504848B
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- sensor assembly
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
Abstract
A kind of sub- monitor system of distribution pole ascending operation real training safety auxiliary electrical, including：Sensor assembly, for generating status signal after induction information point behavior；Wireless signal transmitting module is connect with sensor assembly, the status signal for acquiring sensor assembly transmission, and is launched after status signal is switched to digital quantity wireless signal；Reception of wireless signals module is wirelessly connected with wireless signal transmitting module, the digital quantity wireless signal for receiving wireless signal transmitting module transmitting, and digital quantity wireless signal is uploaded；Master control system, with reception of wireless signals module wired connection, the digital quantity wireless signal for receiving reception of wireless signals module upload, after master control system carries out logic judgment to digital quantity wireless signal, master control system sends out instruction；Reponse system function module is connect with the wireless signal transmitting module and the master control system, the instruction sent out for receiving master control system.
Description
Technical field
The present invention relates to a kind of electronic monitoring system, more particularly to a kind of distribution pole ascending operation real training safety auxiliary electrical prison
Protecting system.
Background technology
Safety in production is the basic assurance of electric power enterprise development.Scan the industrial accident of electric power enterprise generation, percentage
80 the reason of be since caused by the dangerous production behavior of people, distribution worker's safety operation training is directly related to
The safety of the practical operation of worker and the life and health of worker.
The operational method and program that worker has skillfully grasped are that involved party is formed in long-term practice process, Ren Menjian
Claim operating habit.When this " operating habit " is after deciding, a kind of psychological inertia just will produce.Make involved party not by
The autonomous track along " custom " makes limb action.In order to make worker form this good, specification operating habit, worker
Will often participate in training.
In previous training mostly based on the theory teaching of trainer, the concrete operations link training work that is aided with
That there are workers in work is half-hearted, standard operation action is not in place, phenomena such as performing a task perfunctorily, and many safety operation actions are trainings
Instruction Shi Wufa is with the naked eye identified, is judged whether to meet code of safe practice.Training not in place is serious affects for these
The effect of training, dangerous operation behavior in the later work of worker more to bringing hidden danger.
Invention content
The main purpose of the present invention is to provide a kind of sub- monitor systems of distribution pole ascending operation real training safety auxiliary electrical, utilize
The operation behavior information that the use of the monitor system can not only in time, accurately obtain trained worker more can be by set
Program judges whether operating process meets regulation, enables flow of the training in strict accordance with standardization, standardized operation
Behavior carries out, and eliminates the problem of being brought in previous training.
The present invention provides a kind of sub- monitor system of distribution pole ascending operation real training safety auxiliary electrical, including：Sensor assembly is used
Status signal is generated after inductive operation behavior；Wireless signal transmitting module is connect with the sensor assembly, for acquiring
The status signal of sensor assembly transmission is stated, and is launched after the status signal is switched to digital quantity wireless signal；
Reception of wireless signals module is wirelessly connected with the wireless signal transmitting module, for receiving the wireless signal transmitting module
The digital quantity wireless signal of transmitting, and the digital quantity wireless signal is uploaded；Master control system connects with the wireless signal
Module wired connection is received, the digital quantity wireless signal uploaded for receiving the reception of wireless signals module, the master control
After system carries out logic judgment to the digital quantity wireless signal, the master control system sends out instruction；Reponse system function module,
It is connect with the wireless signal transmitting module and the master control system, the described instruction sent out for receiving the master control system.
Further, Boolean value output sensor module induction switching-off operation behavior is set.
Further, it is provided with the induction of laser light curtain sensor assembly and surmounts range of safety operation operation behavior.
Further, the induction of low-frequency wireless signals transmitting module and sensor assembly inside embedded electroscope is provided with to test
Electric appliance self-test operations behavior；The low-frequency wireless signals transmitting module sends out the arteries and veins for the specific frequency that the sensor sensing generates
It rushes signal to be received by receiving module device, the receiving module device is arranged in the wireless signal transmitting module.
Further, the induction electrical verification operation of impedance signal sensor assembly and operation order and overlap joint ground wire operation are provided with
With operation order operation behavior；The impedance signal sensor assembly include impedance signal sensor, coiling group, binding clip,
Insulating layer and signal line plate；The impedance signal sensor assembly is mounted on thrusting earthing clamp.
Further, the reponse system function module includes having time-delay relay, loud speaker and traffic light；It is described
Loud speaker is connect with the master control system；The time-delay relay is connect with the traffic light, the time-delay relay with
Wireless signal transmitting module connects；The described instruction that the master control system is sent out controls the loud speaker, and passes through described wireless
Signal receiving module controls the time-delay relay and the traffic light with the wireless signal transmitting module.
The present invention also provides it is a kind of display and control the sub- monitor system of distribution pole ascending operation real training safety auxiliary electrical method,
Including：
The step of behavior of sensor assembly inductive operation is with transmitting signal；Receive sensor sensing operation behavior and transmitting
The step of conversion digital quantity signal of the signal of the step of signal and upload；Receive conversion digital quantity signal and upload
The signal of the digital quantity signal of step shows the step of with the logic judgment of signal and generation instruction；Signal is received to show
The step of signal feedback of the described instruction for the step of being instructed with the logic judgment of signal and generation is with making a response.
Further, the behavior of sensor assembly inductive operation with transmitting signals step include：The sensor assembly induction
The power operation behavior state and the step of generate status signal, the status signal for emitting the power operation behavior
Step；The step of sensor assembly incudes the electroscope self-test operations behavior state and generates status signal, for sending out
The step of penetrating the status signal of the electroscope self-test operations behavior；Surmount trouble free service model described in the sensor assembly induction
The step of enclosing operation behavior state and generating status signal, for emitting the state for surmounting range of safety operation operation behavior
The step of signal；The sensor assembly incudes the electrical verification operation and operation order and the operation of overlap joint ground wire and operation order behaviour
The step of making behavior state and generating status signal, for emit the electrical verification operation and operation order and overlap joint ground wire operation and
The step of status signal of operation order operation behavior.
Further, the conversion digital quantity signal and uploading step include：For receiving the power operation behavior, institute
The behavior of electroscope self-test operations is stated, described surmount range of safety operation operation behavior, the electrical verification operation and operation order and takes
The receiving step of the status signal of the sensor assembly of ground wire operation and operation order operation behavior；It is described for converting
Status signal is the step of converting of digital quantity signal；Step of transmitting for emitting the digital quantity signal；It is described for receiving
The receiving step of digital quantity signal；Uploading step for uploading the digital quantity signal.
Further, the signal is shown includes with the step of logic judgment of signal and generation instruction, for showing
The display step of the digital quantity signal and the instruction step that instruction is generated for digital quantity signal described in logic judgment, the letter
Number feedback with step of making a response includes, the feedback step of the arrival reponse system function module for feeding back described instruction and
Reaction step for being made a response according to described instruction reponse system function module.
The beneficial effects of the present invention are provide a kind of distribution pole ascending operation real training safety auxiliary electrical monitor system, profit
With the hardware sensor of the system to the automatic of point of safes and safety operation behavioural information crucial in Safe Training flow
Change acquisition, master control system is sent to by radio transmission apparatus, system is given according to the software program write and judged, and trained work is made
The training of people is constantly guarded, and realizes the function of electronic monitoring people.
Description of the drawings
Fig. 1 show the sub- monitor system composition schematic diagram of distribution pole ascending operation real training safety auxiliary electrical of the embodiment of the present invention.
Fig. 2 show the sub- monitor system composition schematic diagram of distribution pole ascending operation real training safety auxiliary electrical of the embodiment of the present invention.
Fig. 3 show contact Boolean value output sensor schematic diagram of the embodiment of the present invention.
Fig. 4 show electroscope self-test flow chart of the embodiment of the present invention.
Fig. 5 a show laser light curtain sensor operating principles figure of the embodiment of the present invention.
Fig. 5 b show laser light curtain sensor operating principles figure of the embodiment of the present invention.
Fig. 6 show impedance signal Fundamentals of Sensors figure of the embodiment of the present invention.
Fig. 7 a show impedance signal sensor operating principles figure of the embodiment of the present invention.
Fig. 7 b show impedance signal sensor operating principles figure of the embodiment of the present invention.
Fig. 8 show reponse system flow chart of the embodiment of the present invention.
Fig. 9 show the sub- monitor system flow chart of distribution pole ascending operation real training safety auxiliary electrical of the embodiment of the present invention.
Figure 10 show the sub- monitor system detail flowchart of distribution pole ascending operation real training safety auxiliary electrical of the embodiment of the present invention.
Specific implementation mode
Below in conjunction with attached drawing detailed description of the present invention embodiment.It should be noted that described in following embodiments
The combination of technical characteristic or technical characteristic be not construed as it is isolated, they can be combined with each other and be combined with each other from
And reach superior technique effect.In the attached drawing of following embodiments, the identical label that each attached drawing occurs represents identical spy
Sign or component, can be applied in different embodiments.
Fig. 1 show the sub- monitor system composition schematic diagram of distribution pole ascending operation real training safety auxiliary electrical of the embodiment of the present invention.
The sub- monitor system of distribution pole ascending operation real training safety auxiliary electrical described in the embodiment of the present invention, including：Sensor assembly,
For generating status signal after inductive operation behavior；Wireless signal transmitting module is connect with the sensor assembly, for acquiring
The status signal that the sensor assembly transmits, and launch after the status signal is switched to digital quantity wireless signal
It goes；Reception of wireless signals module is wirelessly connected with the wireless signal transmitting module, for receiving the wireless signal transmission mould
The digital quantity wireless signal of block transmitting, and the digital quantity wireless signal is uploaded；Master control system, with the wireless signal
Receiving module wired connection, the digital quantity wireless signal uploaded for receiving the reception of wireless signals module, the master
After control system carries out logic judgment to the digital quantity wireless signal, the master control system sends out instruction；Reponse system function mould
Block is connect with the wireless signal transmitting module and the master control system, the finger sent out for receiving the master control system
It enables.
Fig. 2 show the sub- monitor system composition schematic diagram of distribution pole ascending operation real training safety auxiliary electrical of the embodiment of the present invention.
Wireless signal transmitting module described in the embodiment of the present invention preferentially uses SZ06-ZIGBEE wireless communication modules；It is described
Signal receiving module preferentially uses SZ02-ZIGBEE wireless communication modules.
The operation behavior includes power operation behavior, the behavior of electroscope self-test operations, surmounts range of safety operation behaviour
Make behavior, electrical verification operation and operation order operation behavior and hangs ground wire operation and operation order operation behavior.
Fig. 3 show switch quantity sensor schematic diagram.
Power operation behavior described in the embodiment of the present invention is provided with Boolean value output sensor module.
Boolean value output sensor module induction switching-off operation behavior state simultaneously generates status information, and status information is by SZ06-
Acquisition module in ZIGBEE wireless communication modules obtains, and switchs to " 0 " or " 1 " two kinds of digital quantity signals and sends SZ02- to
ZIGBEE wireless communication modules, signal upload the computer of master control system by SZ02-ZIGBEE wireless communication modules.
Fig. 4 show electroscope self-test flow chart of the embodiment of the present invention.
Electroscope self-test operations behavior described in the embodiment of the present invention is provided with the low-frequency wireless signals inside embedded electroscope
Transmitting module and sensor assembly retain buzzing prompt tone and flashing red light when the original self-test of electroscope；The low frequency without
The pulse signal that line signal sends out the specific frequency of the sensor sensing is received by receiving module device, the reception mould
Block assembly is arranged in the wireless signal transmitting module.
The state of sensor assembly induction electroscope self-test operations behavior simultaneously generates status information, described in status information warp
The pulse signal for the specific frequency that low-frequency wireless signals are sent out is received by receiving module device, and the receiving module device is set
It sets in the wireless signal transmitting module, the receiving module device is connect with SZ06-ZIGBEE wireless communication modules, described
The pulse signal of specific frequency switchs to " 0 " or " 1 " two kinds of digital quantity signal transmission by SZ06-ZIGBEE wireless communication modules
SZ02-ZIGBEE wireless communication modules, signal is given to upload the calculating of master control system by SZ02-ZIGBEE wireless communication modules
Machine.
Fig. 5 a show laser light curtain sensor operating principles figure of the embodiment of the present invention.
Fig. 5 b show laser light curtain sensor operating principles figure of the embodiment of the present invention.
Surmount range of safety operation operation behavior described in the embodiment of the present invention and is provided with laser light curtain sensor assembly.
The laser light curtain sensor assembly includes transmitter, receiver, controller three parts composition.Transmitter is by nine groups
Parallel, equidistant laser beam composition；Receiver is equidistantly made of nine lens, can receive the laser of transmitter transmitting
Light, controller control the transmitting and reception of laser.The transmitter of sensor, receiver be mounted on safety operation area range etc.
Eminence will shut out the light if operating personnel are more than safety zone, then the relay of controller is closed, and sensor sensing generates
Status information, status information are obtained by the acquisition module in SZ06-ZIGBEE wireless communication modules, switch to " 0 " or " 1 " two
Kind digital quantity signal sends SZ02-ZIGBEE wireless communication modules to, and signal is uploaded by SZ02-ZIGBEE wireless communication modules
The computer of master control system.
Fig. 6 show impedance signal Fundamentals of Sensors figure of the embodiment of the present invention.
Fig. 7 a show impedance signal sensor operating principles figure of the embodiment of the present invention.
Fig. 7 b show impedance signal sensor operating principles figure of the embodiment of the present invention.
Electrical verification operation and operation order described in the embodiment of the present invention and the operation of overlap joint ground wire and operation order operation behavior are set
It is equipped with impedance signal sensor assembly；The impedance signal sensor assembly includes impedance signal sensor, coiling group, wiring
Folder, insulating layer and signal line plate；The impedance signal sensor assembly is mounted on thrusting earthing clamp.As progress electrical verification behaviour
When making, the impedance signal that sensor can collect arbitrary single channel is become zero by infinity；When carrying out overlap joint ground wire operation,
Twin-channel impedance signal signal that sensor can collect arbitrary neighborhood is become zero by infinity；The impedance signal sensor
Information point acquisition status signal by SZ06-ZIGBEE wireless communication modules acquisition module obtain, switch to " 0 " or
" 1 " two kinds of digital quantity signals send SZ02-ZIGBEE wireless communication modules to, and signal passes through SZ02-ZIGBEE radio communication molds
Block uploads the computer of master control system.
Fig. 8 show reponse system flow chart of the embodiment of the present invention.
Reponse system of the embodiment of the present invention includes master control system, reception of wireless signals module SZ02-ZIGBEE, wireless signal
Transmitting module SZ06-ZIGBEE and reponse system function module；The reponse system function module includes having time-delay relay, raising
Sound device and traffic light；The loud speaker is connect with the master control system；The time-delay relay and the traffic light
Connection, the time-delay relay are connect with wireless signal transmitting module SZ06-ZIGBEE；Master control system software is to operating personnel's
After operation behavior makes logic judgment, reponse system is issued instructions to, described instruction controls the loud speaker, and passes through wireless communication
Number receiving module SZ02-ZIGBEE and wireless signal transmitting module SZ02-ZIGBEE controls the time-delay relay and described red
Green signal light；System is prompted by sound, light.
Fig. 9 show the sub- monitor system flow diagram of distribution pole ascending operation real training safety auxiliary electrical of the embodiment of the present invention.
The embodiment of the present invention also provide it is a kind of display and control the sub- monitor system of distribution pole ascending operation real training safety auxiliary electrical
Method, including：
The step of behavior of sensor assembly inductive operation is with transmitting signal；Receive the behavior of sensor assembly inductive operation with
The step of conversion digital quantity signal of the signal for the step of emitting signal and upload；Receive conversion digital quantity signal and on
The signal of the digital quantity signal of the step of biography shows the step of with the logic judgment of signal and generation instruction；Receive signal
The step of signal feedback of the described instruction of the step of display and logic judgment and the generation instruction of signal is with making a response.
Figure 10 show the sub- monitor system detailed process of distribution pole ascending operation real training safety auxiliary electrical of the embodiment of the present invention and shows
It is intended to.
Sensor assembly inductive operation behavior described in the embodiment of the present invention with transmitting signals step include：The sensor die
The step of block incudes the power operation state and generates status signal, the status signal for emitting the power operation behavior
The step of；The step of sensor assembly incudes the electroscope self-test operations behavior state and generates status signal, is used for
The step of emitting the status signal of the electroscope self-test operations behavior；Surmount trouble free service described in the sensor assembly induction
Range operation behavior state and the step of generate status signal, for emitting the shape for surmounting range of safety operation operation behavior
The step of state signal；The sensor assembly incudes the electrical verification operation and operation order and the operation of overlap joint ground wire and operation order
Operation behavior state and the step of generate status signal, for emitting the electrical verification operation and operation order and overlap joint ground wire operation
The step of with the status signal of operation order operation behavior.
Digital quantity signal is converted described in the embodiment of the present invention and uploading step includes：For receiving the power operation row
For, the electroscope self-test operations behavior, described surmount range of safety operation operation behavior, the electrical verification operation and operation order
The reception of the status signal of operation behavior and the sensor assembly of the overlap joint ground wire operation and operation order operation behavior
Step；For converting the step of converting that the status signal is digital quantity signal；Transmitting for emitting the digital quantity signal
Step；Receiving step for receiving the digital quantity signal；Uploading step for uploading the digital quantity signal.
Signal described in the embodiment of the present invention is shown includes with the step of logic judgment of signal and generation instruction, for showing
Show the display step of the digital quantity signal and generates the instruction step of instruction for digital quantity signal described in logic judgment.It is described
The instruction that master control system is sent out includes right instructions and false command.
A number feedback described in the embodiment of the present invention includes that the arrival for feeding back described instruction is fed back with step of making a response
The feedback step of system function module and reaction step for being made a response according to described instruction reponse system function module.Institute
It states reponse system function module and receives the right instructions, then give a green light；It states reponse system function module and receives the mistake
It accidentally instructs, then sends out a warning and made a sound with loud speaker.
The sub- monitor system software operation interface of distribution pole ascending operation real training safety auxiliary electrical of the embodiment of the present invention have it is succinct,
Functional areas are clear, clear feature easy to operate, on interface in addition to system start equal buttons other than be also integrated with list importing,
The function buttons such as training statistics, the auto judge of the result of appraisal and printing.
Four functional areas of system interface point, upper left-hand are that current start-up selects area, and right side is by start-up's
Essential information viewing area.Lower left side functional areas are training function and check function select button；Start, terminate and exit and is
System software function button.It is that information collection point sensor obtains data mode instruction area, operation behavior recording areas among lower part.Under
It is operating mistake number statistics, display on the right side of portion, trains used time display and generate report button.
The present invention makes worker form this good, specification operation habit by the training of the Formal description of monitor system
It is used, when change operational method, using new tool or new equipment when, staff will not ignore certain required in operation process
The step of, will not in order to scheme easily, take a shortcut, miss a certain safe handling procedures intentionally, still can be according in the work in later stage
Standard practice instructions carries out production operation, improves the safety in production technical ability of worker, is laid for power-generating enterprise's safety in production
Solid foundation..
Although having been presented for some embodiments of the present invention herein, it will be appreciated by those of skill in the art that
Without departing from the spirit of the invention, the embodiments herein can be changed.Above-described embodiment is only exemplary, no
It should be using the embodiments herein as the restriction of interest field of the present invention.
Claims (3)
1. a kind of sub- monitor system of distribution pole ascending operation real training safety auxiliary electrical, which is characterized in that including：
Sensor assembly, including switch sensor, for generating status signal after obtaining power operation behavior；Laser light curtain senses
Device generates status signal for obtaining to surmount after operation behavior in range of safety operation；Low-frequency wireless inside embedded electroscope
Sender unit sensor assembly, the low-frequency wireless signals emitter send out the spy that the sensor assembly induction generates
The pulse signal for determining frequency is received by receiving module device, and the receiving module device is arranged in the wireless signal transmitting module
In, for generating status signal after obtaining inspection electroscope state operation behavior；The impedance signal on thrusting earthing clamp
Sensor assembly, the impedance signal sensor assembly include impedance signal sensor, coiling group, binding clip, insulating layer and
Signal line plate, for generating shape after obtaining electrical verification operation and operation order and the operation of overlap joint ground wire and operation order operation behavior
State signal；
Wireless signal transmitting module is connect with the sensor assembly, the shape transmitted for acquiring the sensor assembly
State signal, and the status signal is converted into digital signal by internal Digital To Analog and is sent to reception of wireless signals module；
Reception of wireless signals module is wirelessly connected with the wireless signal transmitting module, for receiving the wireless signal transmission
The wireless signal of module transmitting, and the wireless signal is uploaded to master control system；
Master control system is uploaded with the reception of wireless signals module wired connection for receiving the reception of wireless signals module
The sensor assembly obtain operation behavior status signal, the master control system operates row to the sensor assembly of acquisition
After carrying out operation behavior and operation order to wrong logic judgment for status signal, the master control system issues instructions to feedback system
System function module；
Reponse system function module is connect with the wireless signal transmitting module and the master control system, for receiving the master
The described instruction that control system is sent out.
2. the sub- monitor system of distribution pole ascending operation real training safety auxiliary electrical as described in claim 1, which is characterized in that described anti-
Feedback system function module includes having time-delay relay, loud speaker and traffic light；The loud speaker connects with the master control system
It connects；The time-delay relay is connect with the traffic light, and the time-delay relay is connect with wireless signal transmitting module；Institute
It states the described instruction that master control system is sent out and controls the loud speaker, and pass through the reception of wireless signals module and the wireless communication
Number transmitting module controls the time-delay relay and the traffic light.
3. the sub- monitor system of distribution pole ascending operation real training safety auxiliary electrical as described in claim 1, which is characterized in that the biography
Sensor module incudes each operation behavior：
The step of sensor assembly incudes the power-off monitoring operation behavior state and generates status signal, for emitting
The step of stating the status signal of power-off monitoring operation behavior；
The step of sensor assembly incudes the electroscope self-test operations behavior state and generates status signal, for emitting
The step of status signal of the electroscope self-test operations behavior；
It the step of surmounting range of safety operation operation behavior state described in the sensor assembly induction and generating status signal, uses
The step of surmounting the status signal of range of safety operation operation behavior described in transmitting；
The sensor assembly incudes the electrical verification operation and operation order and the operation of overlap joint ground wire and operation order operation behavior
State and the step of generate status signal, for emitting the electrical verification operation and operation order and the operation of overlap joint ground wire and operating suitable
The step of status signal of sequence operation behavior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777493.XA CN104504848B (en) | 2014-09-22 | 2014-12-15 | A kind of sub- monitor system of distribution pole ascending operation real training safety auxiliary electrical |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014104858577 | 2014-09-22 | ||
| CN201410485857 | 2014-09-22 | ||
| CN201410777493.XA CN104504848B (en) | 2014-09-22 | 2014-12-15 | A kind of sub- monitor system of distribution pole ascending operation real training safety auxiliary electrical |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104504848A CN104504848A (en) | 2015-04-08 |
| CN104504848B true CN104504848B (en) | 2018-10-09 |
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| CN201410777493.XA Expired - Fee Related CN104504848B (en) | 2014-09-22 | 2014-12-15 | A kind of sub- monitor system of distribution pole ascending operation real training safety auxiliary electrical |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108919293A (en) * | 2018-09-28 | 2018-11-30 | 广东电网有限责任公司 | Monitoring by Lidar device and electric pole |
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| CN103067941B (en) * | 2012-12-26 | 2016-04-13 | 武汉大学 | Based on the multivariable distributed on line monitoring system of radio sensing network |
| CN103208220B (en) * | 2013-04-16 | 2015-10-21 | 柳州铁道职业技术学院 | Intelligent type low-voltage is for distribution training system and practical training method thereof |
| CN204288432U (en) * | 2014-09-22 | 2015-04-22 | 长春大学 | A kind of distribution steps on the sub-monitor system of bar operation real training safety auxiliary electrical |
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