CN106504471A - A kind of nearly electricity early warning system of motor vehicles and machines - Google Patents
A kind of nearly electricity early warning system of motor vehicles and machines Download PDFInfo
- Publication number
- CN106504471A CN106504471A CN201610952107.5A CN201610952107A CN106504471A CN 106504471 A CN106504471 A CN 106504471A CN 201610952107 A CN201610952107 A CN 201610952107A CN 106504471 A CN106504471 A CN 106504471A
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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
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
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- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses a kind of nearly electricity early warning system of motor vehicles and machines, including electric field signal induction installation (1), on the outside of motor vehicles and machines, in order to detect electric field change；Indicating alarm device (2), on the operating desk of motor vehicles and machines, for indicating and reporting to the police；Electric field signal induction installation (1) is connected by wireless signal with indicating alarm device (2).The nearly electricity early warning system of the motor vehicles and machines of the present invention, when motor vehicles and machines construction is near high-voltage line, can carry out photoelectric alarm, so that the generation of high voltage transmission line accident is reduced or avoided.
Description
Technical field
The invention belongs to technical field of electronic equipment, particularly a kind of motor vehicles and machines construction near high-voltage line when can carry out
The nearly electricity early warning system of the motor vehicles and machines of photoelectric alarm.
Background technology
In recent years, with industrial growing, the construction scale of electrical network has the development that advances by leaps and bounds, while because
For negligence of operation, high-altitude construction machinery occurs repeatedly too close to the line short trip accident that high voltage transmission line causes, not only
The electric shock injures and deaths of workmen are caused, some can also cause large-area power-cuts, heavy losses are caused to national economy production, to people
Activity also result in very big impact.
Mechanical engineering vehicle touches high voltage transmission line in work progress repeatedly, traces it to its cause, not just merely because construction
Outside the negligence of operating personnel, it is to lack necessary early warning, mechanic at the construction field (site) the reason for even more important
Journey vehicle lacks warning facility.
Therefore, the problem of prior art presence is：Motor vehicles and machines construction near high-voltage line when, without alarm device,
Cause high voltage transmission line Frequent Accidents.
Content of the invention
It is an object of the invention to provide a kind of nearly electricity early warning system of motor vehicles and machines, when motor vehicles and machines construction is near high-voltage line
When, photoelectric alarm can be carried out, so that the generation of high voltage transmission line accident is reduced or avoided.
The technical scheme for realizing the object of the invention is：
A kind of nearly electricity early warning system of motor vehicles and machines, including electric field signal induction installation, on the outside of motor vehicles and machines, in order to
Detection electric field change；Indicating alarm device, on the operating desk of motor vehicles and machines, for indicating and reporting to the police；The electric field letter
Number induction installation is connected by wireless signal with indicating alarm device.
Compared with prior art, its remarkable advantage is the present invention：
(1) electric field signal signal induction device is carried out data transmission by wireless communication module with indicating alarm device, electricity
Using bundling belt installed in motor vehicles and machines periphery, indicating alarm device is adsorbed in driving field signal signal induction device by magnet steel
On operating desk, easy installation and removal, without installing redundant data transfer line, without the need for changing through row to original vehicle.
(2) electric field signal signal induction device can be realized in the case of nobody through row data with automatic measurement electric field change
Collection monitoring and transmission, can avoid survey crew in field domain, from causing perturbed field to produce, be conducive to accurately detecting high voltage,
Highfield, while guarantee the inherently safe of operating personnel.
(3) indicating alarm device can be got in touch with monitoring personnel outside the venue by note, and convenient monitor in real time outside the venue refers to
Lead and Data Collection.
Description of the drawings
Fig. 1 is the structured flowchart of the nearly electricity early warning system of motor vehicles and machines of the present invention.
Fig. 2 is the circuit block diagram of electric field signal induction installation in Fig. 1.
Fig. 3 is the circuit block diagram of signal collection modulation module in Fig. 2.
Fig. 4 is the circuit block diagram of indicating alarm device in Fig. 1.
In figure, electric field signal induction installation 1, indicating alarm device 2；
Single chip control module 11, signal collection modulation module 12, wireless telecommunications sending module 13 and lithium battery power supply mould
Block 14；
C8051 chips 111, clock circuit 112, reset circuit 113, signal condition input circuit 115, wireless telecommunications send
Circuit 114；
Spherical electric-field sensor 121, signal filter circuit 122, ac amplifier circuit 123, real effective circuit 124, true
Virtual value unipolarity alternating signal amplifying circuit 125；
Single chip processing module 21, wireless telecommunications receiver module 22, d GPS locating module 24, acousto-optic voice alarm module 23,
It is based on GSM/GPRS notes wireless communication module 25, magnetic valve brake hard module 26, power module 27；
PIC18F4420 chips 211, clock circuit 212, reset circuit 213；
WTD558 chips 231, yellow led indicator lamp 232, outside speaker 233, manual-lock machinery inching button 234；
GARMIN GPS25 receivers 241, GPS25LP-LVC242；
TC35I modular circuits 251, communication start electricity 252, SIM circuit 253, red LED indicating circuit 254.
Specific embodiment
As shown in figure 1, the nearly electricity early warning system of motor vehicles and machines of the present invention,
Including electric field signal induction installation 1, on the outside of motor vehicles and machines, in order to detect electric field change；
Indicating alarm device 2, on the operating desk of motor vehicles and machines, for indicating and reporting to the police；
The electric field signal induction installation 1 is connected by wireless signal with indicating alarm device 2.
As shown in figure 1,
The electric field signal induction installation 1 includes single chip control module 11, signal collection modulation module 12, wireless telecommunications
Sending module 13 and lithium battery power supply module 14；
The input of the single chip control module 11 is connected with 12 signal of signal collection modulation module, its output end and nothing
Line 13 signal of communication sending module is connected, and the wireless telecommunications sending module 13 passes through wireless signal phase with indicating alarm device 2
Even；
The lithium battery power supply module 14 respectively with single chip control module 11, signal collection modulation module 12 and channel radio
News sending module 13 is connected.
As shown in Fig. 2
The signal collection modulation module 12 includes the spherical electric-field sensor 121, signal filter circuit being sequentially connected in series
122nd, ac amplifier circuit 123, real effective circuit 124, real effective unipolarity alternating signal amplifying circuit 125；
The output end of the real effective unipolarity alternating signal amplifying circuit 125 and the input of single chip control module 11
End signal is connected.
As shown in figure 3,
The single chip control module 11 includes C8051 chips 111, clock circuit 112, reset circuit 113, signal condition
Input circuit 115 and wireless telecommunications transtation mission circuit 114；
The clock circuit 112, reset circuit 113, signal condition input circuit 115 and single-chip microcomputer C8051 chips 111
Input is connected, and wireless telecommunications transtation mission circuit 114 is connected with 111 output end of single-chip microcomputer C8051 chips.
As shown in figure 4,
The indicating alarm device 2 includes single chip processing module 21, wireless telecommunications receiver module 22, d GPS locating module
24th, acousto-optic voice alarm module 23, be based on GSM/GPRS notes wireless communication module 25, magnetic valve brake hard module 26 and electricity
Source module 27；
The input of the single chip processing module 21 is believed with wireless telecommunications receiver module 22 and d GPS locating module 24 respectively
Number be connected, its output end respectively with acousto-optic voice alarm module 23, based on GSM/GPRS notes wireless communication module 25 and electromagnetism
26 signal of valve brake hard module is connected；
The power module 27 respectively with single chip processing module 21, wireless telecommunications receiver module 22, d GPS locating module
23rd, acousto-optic voice alarm module 24, be based on GSM/GPRS notes wireless communication module 25,26 phase of magnetic valve brake hard module
Even；
The wireless telecommunications receiver module 22 is connected by wireless signal with wireless telecommunications sending module 13.
As shown in figure 4,
The single chip processing module 21 includes PIC18F4420 chips 211, clock circuit 212 and reset circuit 213, institute
State PIC18F4420 chips 211 to be connected with clock circuit 212 and reset circuit 213 respectively.
As shown in figure 4,
The acousto-optic voice alarm module 23 includes WTD558 chips 231, yellow led indicator lamp 232, outside speaker 233
With manual-lock machinery inching button 234；
The WTD558 chips 231 respectively with yellow led indicator lamp 232, outside speaker 233 and manual-lock machinery crawl
Button 234 is connected；
The WTD558 chips 231 are also connected with the PIC18F4420 chips 211 of single chip processing module 21.
As shown in figure 4,
The d GPS locating module 24 includes GARMIN GPS25 receivers 241 and the GPS25LP-LVC242 being attached thereto；
The GPS25LP-LVC242 is connected with the PIC18F4420 chips 211 of single chip processing module 21.
As shown in figure 4,
Described based on GSM/GPRS notes wireless communication module 25 include TC35I modular circuits 251, communication start-up circuit
252nd, SIM circuit 253 and red LED indicating circuit 254；
The communication start-up circuit 252, SIM circuit 253 and red LED indicating circuit 254 are electric with TC35I modules respectively
Road 251 is connected, and TC35I modular circuits 251 are connected with the PIC18F4420 chips 211 of single chip processing module 21.
Spherical sensors 121 collect electric field intensity signal and are output as power frequency alternate electrical signal, and the electric signal passes through two
The clutter included in signal is filtered after rank filter circuit module 122, ac amplifier circuit 123 is passed to, to small voltage
Real effective circuit 124 is passed to after amplification, power frequency alternating signal is changed into after unipolarity alternating signal, continue to which through list
Polarity amplifying circuit 125 passes to single-chip microcomputer after amplifying again.
It is data signal through AD conversion, signal is being received through row data processing to which by single-chip microcomputer 111, through wireless in control
Communication module 13 passes it to the wireless telecommunications receiving terminal of single chip control module 2.
13 function of wireless telecommunications sending module is that the signal after the process of single chip control module 11 is sent to transmission list in real time
Piece machine control module 22, external indicator lamp 131, when proceed-to-send signal, 222 indicator lamp of blue led is started working.
Lithium battery 14 is powered for electric field signal signal induction device ± 5V, and crust of the device conveniently charges equipped with charge port.
After wireless telecommunications receiver module function is the process of 2 real-time reception single chip control module of single chip control module 1
Data signal, external blue led indicator lamp 222, when starting to receive information, indicator lamp is bright.
Single chip control module 21 adopts 211 chips of PIC18F4420, and peripheral circuit is comprising clock circuit 212, reset electricity
Road 213, wireless telecommunications receiving circuit 221, acousto-optic voice module 23, gps locating modules 24, note wireless communication module 25, electricity
Magnet valve brake hard module 26, is connected with power supply 27.Clock circuit 212 adopts 4M crystal oscillators, from XT patterns, is programmed by arranging
Configuration bit in configuration register is connected to produce vibration by crystal oscillator with input OSC1 and output end OSC2 pin selecting.
Reset circuit 213 includes a button external reset and RC delay circuits internal reset resets, it is ensured that system reliably resets.
Acousto-optic voice alarm module 23 is directly connected with single-chip microcomputer 211 from WTD558 chips 231, and external yellow led refers to
Show lamp 232, outside speaker 233 and manual-lock machinery inching button 234.When motor vehicles and machines are near high-voltage line, audio alert
Loudspeaker 233 send voice message and yellow led indicator lamp 232 flashes.But press manual-lock button 234, voice message and
Yellow indicator lamp is closed.
Gps locating modules 24 select GARMIN GPS25 receivers 242, the recipient by GPS25LP-LVC 241 with
Single-chip microcomputer 211 is communicated by serial ports 2, in order to avoid power-supply fluctuation excessive affect receiver normal work, VIN with
A holding capacitor can be added between GND.
Based on GSM/GPRS notes radio communication unit 25 include TC35I modular circuits 251, communication start-up circuit 252,
SIM circuit 253 and red LED indicating circuit 254.Major function is to send alarming short message, receive the finger that supervisor sends
Make note.TC35I modular circuits 251 realize communication, SIM circuit 253 and TC35I moulds by the connection of serial ports 1 of single-chip microcomputer 211
Block 251 is connected and realizes short message sending, when the signal of signal acquisition circuit collection is more than critical value, i.e., with high-tension bus-bar apart from little
When threshold value 2, single-chip microcomputer sends instruction, and TC35I modular circuits 251 are received and send short message by SIM 253.Communication is opened
Dynamic circuit 251 is external start button, can pass through button when not supervising personnel or there is no potential safety hazard
Manual-lock GSM/GPRS note wireless communication modules.Red LED lamp 254 is connected with TC35I modular circuits 251, when LED not
When bright, show that GSM/GPRS note wireless communication modules do not work or enter resting state.When red LED lamp 254
During the flicker that the bright 500ms of 500ms go out, mean that SIM is not inserted into 253 or TC35I modules 251 in SIM circuits and does not have
It is registered to network.When red LED lamp 254 is with bright 100 milliseconds, during 10 milliseconds of flickers, mean that TC35I modules 251 have been noted
Volume to network and enters holding state.
Magnetic valve brake hard module 26 includes a control relay circuit 261, when signal acquisition circuit collection
When signal is less than threshold value 3 more than critical value, i.e. safe distance, single-chip microcomputer relay ports can send a low level, and triode is led
Lead to and cause relay to be changed into obtaining electricity condition.Relay is normally closed to become normally opened, and the power supply of cutting machine vehicle causes motor vehicles and machines urgent
Stop, it is ensured that the safety of motor vehicles and machines and human pilot.
Power module 2-7 includes three circuit modules to each module for power supply, by three different circuit realirations by 12V
Vehicle self-carrying power supply dress is changed into ± 5V 271,4.2V 272 and 3.3V 273.4.2V be to GSM/GPRS note wireless telecommunications in
TC35I modular circuits 251 power, 3.3V be to voice module in the VCC ends of WTD588 chips 231 power, remaining module
Chip power supply is ± 5V.
Embodiment 1
For engineering construction requires that the early warning of nearly electricity must be easy for installation, reliable and stable, rate of false alarm is low and will not fail to report, so
From spherical sensors 121 and mechanizing circuit ensureing the sensitive and accurate of induced signal.Therefore, the near electric early warning that the present invention is provided
Device circuit must meet the reliability of detection high-voltage signal while circuit structure, reduces cost is simplified.
In conjunction with figure figure, the operating process of the present invention is as follows.Correct peace after the induction installation 1 of nearly electric precaution device is charged
It is mounted on the arm of motor vehicles and machines, the device is fixed for bundling belt, convenient dismounting.Turn on the power module switch 14 and 27 and start work
Make, powered on moment, blue indicator light 222 flash once, will indicate that warning master device 2, equipped with magnet steel, can be adsorbed installed in machine
On the operating desk of tool vehicle, the 12V power supplys of external vehicle self-carrying turn on the power module switch 14 and 27 and open the light, and start working, loudspeaker
The 233 very brief prompting sounds for sending " ticking ".Two parts are docked through row joint debugging, when the blue indicator light of two part wireless telecommunications
222 all bright when, two parts communication is normal.
Start motor vehicles and machines, when near high-voltage line, if distance is less than former given threshold, the sensing letter of spherical sensors 121
Number single chip control module 11 is passed to after signal condition, to analog signal through row process, be changed into the numeral for representing distance
Signal, passes to instruction warning master device 2 by wireless communication module 13 after being processed by single-chip microcomputer 111.
Indicate that warning master device, after wireless communication module 22 receives signal, is compared judgement to which.Work as signal
During more than former given threshold 1, start audio alert, loudspeaker 233 can send the voice message of " attention has high-tension electricity " always, and
Yellow indicator lamp 232 can also flash.If human pilot judge be safe from danger can pass through 234 manual-lock voice message of button and
Indicator lamp, or wait motor vehicles and machines to travel out danger zone, voice message can be automatically stopped, and yellow indicator lamp 232 can also extinguish.
When the distance of motor vehicles and machines and high-tension electricity is less than given threshold 2, indicate that warning master device 2 passes through single-chip microcomputer 21
Instruction is sent, order GSM/GPRS notes radio communication unit 25 sends alarming short message, and TC35I modular circuits 251 are received and led to
Cross SIM 253 and send short message.Short message content includes the particular location that car number and gps locating modules 24 are monitored,
Example：" vehicle XXXXXX (car number) sails danger zone into, is less than safety value, position with high-tension bus-bar distance：XXXX.XXXX
(vehicle location)." communication start-up circuit 253 be external start button, when do not supervise personnel or judge there is no safety
252 manual-lock GSM/GPRS note wireless communication modules of button can be passed through when hidden danger.Red LED lamp 254 and TC35I
Modular circuit 251 is connected, and when LED does not work, shows that GSM/GPRS notes wireless communication module 25 does not work or enters
Enter resting state.When the flicker that the bright 500ms of red LED lamp 254500ms goes out, mean SIM 253 be not inserted into or
TC35I modules 251 are not registered to network.When LED 254 is with bright 100 milliseconds, during 10 milliseconds of flickers, TC35I moulds are meant
Block 251 has already registered with network and enters holding state.
When the distance of motor vehicles and machines and high-tension electricity is less than given threshold 3, single-chip microcomputer 211relay ports can send one
Individual low level, relay is normally closed to become normally opened, and the power supply of cutting machine vehicle causes motor vehicles and machines to stop in emergency, and loudspeaker 233 also can
Send the yowl of " ticking ", it is ensured that the safety of motor vehicles and machines and human pilot.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications that within the spirit and principles in the present invention, is made,
Equivalent substitute, improvement etc., should be included within the scope of the present invention.
Claims (9)
1. the nearly electricity early warning system of a kind of motor vehicles and machines, it is characterised in that：
Including electric field signal induction installation (1), on the outside of motor vehicles and machines, in order to detect electric field change；
Indicating alarm device (2), on the operating desk of motor vehicles and machines, for indicating and reporting to the police；
Electric field signal induction installation (1) is connected by wireless signal with indicating alarm device (2).
2. nearly electric early warning system according to claim 1, it is characterised in that：
Described electric field signal induction installation (1) includes single chip control module (11), signal collection modulation module (12), channel radio
News sending module (13) and lithium battery power supply module (14)；
The input of single chip control module (11) is connected with signal collection modulation module (12) signal, its output end and nothing
Line communication sending module (13) signal is connected, and wireless telecommunications sending module (13) are with indicating alarm device (2) by wireless
Signal is connected；
Lithium battery power supply module (14) respectively with single chip control module (11), signal collection modulation module (12) and wireless
Communication sending module (13) is connected.
3. nearly electric early warning system according to claim 2, it is characterised in that：
Described signal collection modulation module (12) include spherical electric-field sensor (121), the signal filter circuit being sequentially connected in series
(122), ac amplifier circuit (123), real effective circuit (124), real effective unipolarity alternating signal amplifying circuit
(125)；
The output end of the real effective unipolarity alternating signal amplifying circuit (125) and the input of single chip control module (11)
End signal is connected.
4. nearly electric early warning system according to claim 2, it is characterised in that：
Described single chip control module (11) include C8051 chips (111), clock circuit (112), reset circuit (113), signal
Conditioning input circuit (115) and wireless telecommunications transtation mission circuit (114)；
Clock circuit (112), reset circuit (113), signal condition input circuit (115) and single-chip microcomputer C8051 chips
(111) input is connected, and wireless telecommunications transtation mission circuit (114) is connected with single-chip microcomputer C8051 chips (111) output end.
5. nearly electric early warning system according to claim 1, it is characterised in that：
Described indicating alarm device (2) include single chip processing module (21), wireless telecommunications receiver module (22), GPS location mould
Block (24), acousto-optic voice alarm module (23), be based on GSM/GPRS note wireless communication modules (25), magnetic valve brake hard mould
Block (26) and power module (27)；
The input of single chip processing module (21) respectively with wireless telecommunications receiver module (22) and d GPS locating module (24)
Signal be connected, its output end respectively with acousto-optic voice alarm module (23), be based on GSM/GPRS note wireless communication modules (25)
It is connected with magnetic valve brake hard module (26) signal；
Power module (27) respectively with single chip processing module (21), wireless telecommunications receiver module (22), d GPS locating module
(23), acousto-optic voice alarm module (24), be based on GSM/GPRS note wireless communication modules (25), magnetic valve brake hard module
(26) it is connected；
Wireless telecommunications receiver module (22) are connected by wireless signal with wireless telecommunications sending module (13).
6. nearly electric early warning system according to claim 5, it is characterised in that：
Described single chip processing module (21) include PIC18F4420 chips (211), clock circuit (212) and reset circuit
(213), PIC18F4420 chips (211) are connected with clock circuit (212) and reset circuit (213) respectively.
7. nearly electric early warning system according to claim 6, it is characterised in that：
Described acousto-optic voice alarm module (23) include WTD558 chips (231), yellow led indicator lamp (232), outside speaker
(233) and manual-lock machinery inching button (234)；
WTD558 chips (231) respectively with yellow led indicator lamp (232), outside speaker (233) and manual-lock mechanical. points
Dynamic button (234) are connected；
WTD558 chips (231) are also connected with the PIC18F4420 chips (211) of single chip processing module (21).
8. nearly electric early warning system according to claim 6, it is characterised in that：
Described d GPS locating module (24) include GARMIN GPS25 receivers (241) and the GPS25LP-LVC being attached thereto
(242)；
GPS25LP-LVC (242) are connected with the PIC18F4420 chips (211) of single chip processing module (21).
9. nearly electric early warning system according to claim 6, it is characterised in that：
Described based on GSM/GPRS note wireless communication modules (25) include TC35I modular circuits (251), communication start-up circuit
(252), SIM circuit (253) and red LED indicating circuit (254)；
Communication start-up circuit (252), SIM circuit (253) and red LED indicating circuit (254) respectively with TC35I modules
Circuit (251) is connected, PIC18F4420 chips (211) phase of TC35I modular circuits (251) and single chip processing module (21)
Even.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610952107.5A CN106504471A (en) | 2016-10-27 | 2016-10-27 | A kind of nearly electricity early warning system of motor vehicles and machines |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610952107.5A CN106504471A (en) | 2016-10-27 | 2016-10-27 | A kind of nearly electricity early warning system of motor vehicles and machines |
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| CN201610952107.5A Pending CN106504471A (en) | 2016-10-27 | 2016-10-27 | A kind of nearly electricity early warning system of motor vehicles and machines |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107657856A (en) * | 2017-09-06 | 2018-02-02 | 国网山东省电力公司莱芜供电公司 | A kind of safe real training interaction systems of distribution line live working |
| CN110009858A (en) * | 2019-03-11 | 2019-07-12 | 国网新疆电力有限公司昌吉供电公司 | The nearly electric prior-warning device of transmission line of electricity |
| CN112233384A (en) * | 2020-08-25 | 2021-01-15 | 国网浙江省电力有限公司绍兴供电公司 | Auxiliary control and prevention device for power transmission line dangerous point site |
| CN112382062A (en) * | 2020-10-30 | 2021-02-19 | 国网山东省电力公司临沂供电公司 | Near-electric induction alarm device for construction vehicle |
| CN115331387A (en) * | 2022-06-27 | 2022-11-11 | 国网山东省电力公司汶上县供电公司 | Electric shock prevention control method and system for operation vehicle |
| CN116553391A (en) * | 2023-05-17 | 2023-08-08 | 长沙理工大学 | Closed-loop control device and method for emergency braking of touch line of mechanical suspension arm |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107657856A (en) * | 2017-09-06 | 2018-02-02 | 国网山东省电力公司莱芜供电公司 | A kind of safe real training interaction systems of distribution line live working |
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| CN115331387A (en) * | 2022-06-27 | 2022-11-11 | 国网山东省电力公司汶上县供电公司 | Electric shock prevention control method and system for operation vehicle |
| CN116553391A (en) * | 2023-05-17 | 2023-08-08 | 长沙理工大学 | Closed-loop control device and method for emergency braking of touch line of mechanical suspension arm |
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Application publication date: 20170315 |