CN107730831A - A kind of elevator safety warning device - Google Patents

A kind of elevator safety warning device Download PDF

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Publication number
CN107730831A
CN107730831A CN201710978158.XA CN201710978158A CN107730831A CN 107730831 A CN107730831 A CN 107730831A CN 201710978158 A CN201710978158 A CN 201710978158A CN 107730831 A CN107730831 A CN 107730831A
Authority
CN
China
Prior art keywords
module
alarm
terminal
warning device
elevator safety
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710978158.XA
Other languages
Chinese (zh)
Inventor
姬文涛
何桂义
郑瑞峰
张淑颖
闫明伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
Cangzhou Power Supply Co of State Grid Hebei Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Hebei Electric Power Co Ltd
Cangzhou Power Supply Co of State Grid Hebei Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Hebei Electric Power Co Ltd, Cangzhou Power Supply Co of State Grid Hebei Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201710978158.XA priority Critical patent/CN107730831A/en
Publication of CN107730831A publication Critical patent/CN107730831A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02Alarms for ensuring the safety of persons
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01Alarm 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
    • G08B25/10Alarm 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 wireless transmission systems

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Alarm Systems (AREA)

Abstract

The invention provides a kind of elevator safety warning device, belong to power construction technical field of safety protection, including the alarm terminal being arranged on lifting machine table top, control the display terminal on the base of lift;Alarm terminal includes controller, nearly electric induction module, apart from induction module, the first alarm module, wireless sending module and the first power supply module;Display terminal includes the second alarm module, wireless receiving module and the second power supply module, alarm terminal can carry out the setting of alarm distance, adapt to the voltage detecting requirement under different high-tension lines, real-time accurate communication is carried out by wireless sending module and wireless receiving module, meet when carrying out power construction, the table top of lift can be reminded close to during alive circuit to operating personnel, effectively avoid the generation of electric shock accidents, it is easy to operate, it is practical.

Description

A kind of elevator safety warning device
Technical field
The invention belongs to lift and power construction technical field of safety protection, is to be related to a kind of lifting more specifically Machine safety alarm device.
Background technology
At present, when power industry is constructed to stringing of high-tension line or maintenance of equipment etc., lifting is often used Machinery, power high-voltage line be present near elevation and subsidence mechanical, because the table top lifting of elevation and subsidence mechanical is higher, operating personnel are at control bottom Operated on seat, by the notice of operating personnel, the influence of range of vision, whether the solstics for table top is difficult to see clearly to connect Nearly high-tension line, very big danger be present, once touching high-tension line, will result in casualties.
Danger for the construction of above-mentioned lifting machine table top is, it is necessary to study a kind of suitable for lifting machine table top and control base On common alarm device.
The content of the invention
It is an object of the invention to provide a kind of elevator safety warning device, to solve to lift present in prior art When after machine table top rise or close to power circuit, operating personnel are difficult to judge table top adjustable height, the technology for causing personnel to get an electric shock Problem, the device have Realtime Alerts, it is ensured that the advantages of personal security.
To achieve the above object, the technical solution adopted by the present invention is:A kind of elevator safety warning device is provided, including The alarm terminal being arranged on lifting machine table top, control lift the display terminal on the base of the lifting of machine table top;
The alarm terminal includes controller, nearly electric induction module, apart from induction module, the first alarm module, wireless transmission mould Block and the first power supply module, in addition to be connected with the nearly electric induction module, setting and the alarm of alive circuit or equipment room The adjusting knob of distance, it is the nearly electric induction module, first alarm module, described apart from induction module and the wireless hair Module is sent to connect the controller respectively;First power supply module connect respectively the controller, the nearly electric induction module, It is first alarm module, described apart from induction module and the wireless sending module;
The display terminal includes the second alarm module, wireless receiving module and the second power supply module, second power supply module Second alarm module, the wireless receiving module are connected respectively;
Communicated between the alarm terminal and the display terminal by the wireless sending module and wireless receiving module;
When the distance for lifting machine table top and alive circuit or equipment room is less than or equal to alarm distance, alarm terminal alarm is concurrent Deliver letters breath, display terminal receive information is simultaneously alarmed.
Further, the alarm terminal also includes sealing waterproof case, the controller, the first alarm module, distance Induction module, wireless sending module and the first power supply module may be contained within the enclosure, and the nearly electric induction module is set On the outer wall of the shell.
Further, the alarm terminal also includes magnet, and the magnet is arranged at the bottom of the alarm terminal.
Further, the display terminal also includes display, second alarm module, wireless receiving module and second Power supply module may be contained within the display interior, and the display is fixed on the control base of the lifting machine table top.
Further, first alarm module and the second alarm module include buzzer and flash lamp;The buzzing Device and flash lamp are installed at the inner upper end of the shell, or at the inner upper end of the display.
Further, the controller selects single-chip microcomputer.
Further, the number that the alarm terminal is arranged on the lifting machine table top is at least two.
Further, the alarm terminal number is 3-4, is uniformly distributed in center and the margin location of lifting machine table top Put.
Further, the wireless sending module is the transmitting terminal of 433m wireless modules, and the wireless receiving module is The receiving terminal of 433m wireless modules.
Further, first power supply module and second power supply module are 18650 type lithium batteries.
A kind of beneficial effect of elevator safety warning device provided by the invention is:Compared with prior art, this hair A kind of bright elevator safety warning device, increase alarm terminal on lifting machine table top, with the display terminal on control base Information transfer is wirelessly carried out, warning device can meet that the distance with alive circuit after lifting machine table top rise is less than Or equal to setting alarm distance when, the same alarm of alarm terminal and display terminal of warning device, operating personnel pass through the bottom of at Working condition can be observed on seat, effectively avoid the generation of table top electric shock accidents.Pass through the tune on side wall of outer shell simultaneously Section knob can enter the setting of row distance distance, adapt to voltage detecting requirement and practice of construction requirement under different circuits, operation It is convenient, it is practical.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description be only the present invention some Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these Accompanying drawing obtains other accompanying drawings.
Fig. 1 is a kind of scheme of installation of elevator safety warning device provided in an embodiment of the present invention;
Fig. 2 is a kind of circuit diagram of elevator safety warning device provided in an embodiment of the present invention.
Wherein, each reference in figure:1- alarm terminals;2- display terminals;10- controllers;The nearly electric induction modules of 11-; 12- is apart from induction module;The alarm modules of 13- first;14- wireless sending modules;The power supply modules of 15- first;16- magnet;Outside 17- Shell;The alarm modules of 21- second;22- wireless receiving modules;The power supply modules of 23- second;24- displays;111- adjusting knobs.
Embodiment
In order that technical problems, technical solutions and advantages to be solved are more clearly understood, tie below Drawings and Examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only To explain the present invention, it is not intended to limit the present invention.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another On one element or it is connected on another element.When an element is known as " being connected to " another element, it can To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", " on ", " under ", "front", "rear", "left", "right", " vertical ", The orientation or position relationship of the instruction such as " level ", " top ", " bottom " " interior ", " outer " are to be closed based on orientation shown in the drawings or position System, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must have Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Also referring to Fig. 1 to Fig. 2, now a kind of elevator safety warning device provided by the invention is illustrated.Institute A kind of elevator safety warning device is stated, including the alarm terminal 1 being arranged on lifting machine table top, control lifting machine table top lifting Base on display terminal 2.
The alarm terminal 1 includes controller 10, nearly electric induction module 11, apart from induction module 12, the first alarm module 13rd, the magnet 16 of wireless sending module 14, the first power supply module 15 and the fixed alarm terminal, in addition to the nearly inductance Answer that module 11 connects, setting and the adjusting knob 111 of the alarm distance of alive circuit or equipment room, the nearly electric induction module 11st, first alarm module 13, described connect the control respectively apart from induction module 12 and the wireless sending module 14 Device 10;First power supply module 15 connects the controller 10, the nearly electric induction module 11, the first alarm mould respectively It is block 13, described apart from induction module 12 and the wireless sending module 14;It is described to select radio positioner apart from induction module 12, Radio positioner has the characteristics of low price, small volume and registration, radio positioner can be selected GPS radio positioners or GPRS radio positioners.
The display terminal 2 includes the second alarm module 21, the power supply module 23 of wireless receiving module 22 and second, and described the Two power supply modules 23 connect second alarm module 21, the wireless receiving module 22 respectively;The display terminal 2 is arranged on On the base of lift, approached with operating personnel, the very first time reminds the security of operating personnel's table top.
Pass through the wireless sending module 14 and wireless receiving module between the alarm terminal 1 and the display terminal 2 22 are communicated.Both interactive communications of the alarm terminal 1 and the display terminal 2, it is common to ensure that operating personnel operate lifting The safety of machine.
When the distance for lifting machine table top and alive circuit or equipment room is less than or equal to alarm distance, alarm terminal 1 is reported Alert breath of concurrently delivering letters, the receive information of display terminal 2 are simultaneously alarmed, and improve alarming effect jointly.
Nearly electric induction module 11 uses existing protection against electric shock electric field detection module, suitable for the different electric-field intensity of a variety of detections Power high-voltage line, monitored by electric field strength transducer[sensor and receive electric field signal and carry out front-end processing, take out 50HZ power frequencies letter Number, excluded the interference signal by digital filtering, analyze its signal intensity when reaching preset value, instruction is sent by controller 10, The first alarm module 13 is sent alarm signal, due to alarm terminal 1 and the signal intercommunication of display terminal 2, make the second alarm module 21 are simultaneously emitted by alarm signal, remind operating personnel, lift the current location of machine table top close to alive circuit.
The magnet 16 is arranged on the bottom of the shell 17 of alarm terminal 1, in order that the table top of shell 17 and lift leads to The magnetic for crossing magnet 16 attracts on table top, and alarm terminal 1 is installed more convenient, quick.
Adjusting knob 111 in described nearly electric induction module 11, for setting alarm distance, the shelves of adjusting knob 111 Position associates with the electric-field intensity preset value of nearly electric induction module 11, and distance is bigger corresponding to gear, and electric-field intensity preset value is smaller, When detecting less electric-field intensity, it becomes possible to reach preset value, so as to trigger alarm, this is due to around alive circuit Electric-field intensity is that the characteristic progressively reduced with the increase of distance determines.When actual demands of engineering must be close to alive circuit When can complete engineering, alarm distance regulation can be arrived by less gear by adjusting knob 111, make corresponding electric-field intensity pre- If value is larger, to reach the purpose that alarm can be just triggered close to power line.
It should be noted that because different alive circuits its electric-field intensity is different, applicable minimum alarm distance is also It is different.This warning device supports 0.2 meter to 5 meters of alarm distance setting, and 220V-380V aerial cable minimum alarm distances are 0.2 meter, 10KV aerial cable minimums alarm distance is 0.7 meter, and 35KV aerial cable minimums alarm distance is 1.0 meters, 110KV framves Empty cable minimum alarm distance is 1.5 meters, and 220KV aerial cable minimums alarm distance is 3.0 meters.For the powered of different voltages The alarm distance of its setting of circuit cannot be less than its corresponding alarm distance.
, can be on minimum alarm distance according to reality by adjusting knob 111 according to the difference of practice of construction condition Demand carries out the setting of alarm distance, and practicality is stronger under the premise that security is guaranteed.
During work, nearly electric induction module 11 is judged by detecting electric signal and the distance of alive circuit, and will detect Signal is sent in controller 10, and the signal received and threshold value set in advance are compared controller 10, when being determined as When lifting machine table top is less than threshold value with alive circuit distance, controller 10 sends instruction, the first alarm module 13 is sent alarm There is Danger Electric shock risk signal, the position where reminding the current table top of operating personnel;The instruction sent simultaneously by alarm terminal 1 can make position Instruction is received in the display terminal 2 on base, the second alarm module 21 of display terminal 2 is simultaneously emitted by signal, while reminds behaviour Taken care as personnel, play double shield;The position of the table top of lift is positioned all the time apart from induction module 12, when When the sling height of table top is more than a certain fixed value, controller 10 can also send instruction, make the first alarm module 13 and the second report Alert module 21 is simultaneously emitted by alarm signal, reminds operating personnel that danger, avoids the generation of accident.
A kind of elevator safety warning device provided by the invention, compared with prior art, increase on lifting machine table top Display terminal on alarm terminal, with base wirelessly carries out information transfer, and warning device can meet in lifting board When being less than setting value with the distance of alive circuit after the stretching, extension of face, the same alarm of alarm terminal and display terminal of warning device, behaviour Make personnel by the way that working condition can be observed on base, effectively avoid the generation of table top electric shock accidents.Simultaneously by positioned at Adjusting knob on side wall of outer shell can carry out the setting of safe distance, adapt to voltage detecting requirement and reality under different circuits Construction requirement, it is easy to operate, it is practical.
Further, also referring to Fig. 1 to Fig. 2, as a kind of elevator safety warning device provided by the invention A kind of embodiment, the alarm terminal 1 also include sealing waterproof case 17, the controller 10, the first alarm module 13rd, be may be contained within apart from induction module 12, the power supply module 15 of wireless sending module 14 and first inside the shell 17, it is described near Electric induction module 11 is arranged on the outer wall of the shell 17, and the magnet 16 is arranged on the bottom of the shell 17.Sealing is anti- Water shell 17 is transparence, and alarm terminal 1 can be protected to adapt to the wet weather conditions such as sleet, increased the service life.Simultaneously Flashed beneficial to the flash lamp of the first alarm module 13 or the second alarm module 21, remind operating personnel's safety.
Further, also referring to Fig. 1 to Fig. 2, as a kind of elevator safety warning device provided by the invention A kind of embodiment, the display terminal 2 also include display 24, second alarm module 21, wireless receiving module 22 and second power supply module 23 may be contained within inside the display 24, the display 24 is fixed on the lifting machine table top On base.Display 24 is set on base, and the signal that display 24 can send the alarm terminal 1 lifted on machine table top transmits Into display 24, make the synchronous corresponding alarm signal of display 24, it is punctual remind operating personnel safely, accomplish double shield.
Further, also referring to Fig. 1 to Fig. 2, as a kind of elevator safety warning device provided by the invention A kind of embodiment, the alarm module 21 of the first alarm module 13 and second include buzzer and flash lamp;It is described Buzzer and flash lamp are installed at the inner upper end of the shell 17, or the inner upper end installed in the display 24 Place.The alarm module 21 of first alarm module 13 and second can carry out acousto-optic report using the combination of buzzer and flash lamp It is alert, the effective percentage of alarm is improved, ensures that staff can timely receive warning message.
Further, also referring to Fig. 1 to Fig. 2, as a kind of elevator safety warning device provided by the invention A kind of embodiment, the controller 10 select single-chip microcomputer.Single-chip microcomputer has that low price, stable performance, the speed of service be fast, body The characteristics of product is small, the present invention is because controller 10 needs to be arranged in sealing waterproof case 17, therefore the volume of controller 10 is not Can be excessive, single-chip microcomputer small volume just meets the requirements, and using single-chip microcomputer on the premise of ensureing that system is stable, reduces lifting board The production cost of face warning device, be advantageous to the marketization of product.
It is many that current species is planted at present, can select 51 series monolithics, STM8 single-chip microcomputers etc..
Further, also referring to Fig. 1 to Fig. 2, as a kind of elevator safety warning device provided by the invention A kind of embodiment, the number that the alarm terminal 1 is arranged on the lifting machine table top are 3-4.It may be mounted at Upper end position, the centre position of machine table top are lifted, with the compounding practice of display terminal 2, realizes and many places for lifting machine table top is alarmed, Operating personnel can be reminded to pay attention to lifting the lifting height of machine table top or with alive circuit close to situation in the very first time, prevent from touching The danger of electricity.Alarm terminal 1 set it is multiple, and prevent some alarm terminals 1 power supply lose signal or produce failure, influence The use of alarm terminal 1.
Further, also referring to Fig. 1 to Fig. 2, as a kind of elevator safety warning device provided by the invention A kind of embodiment, the wireless sending module 14 be 433m wireless modules transmitting terminal, the wireless receiving module 22 For the receiving terminal of 433m wireless modules.433m wireless modules can select the APC240 ultra-low power consumption wireless number of An Meitong science and technology to pass Module, operating voltage 2.1-3.6V are low in energy consumption to be suitable to battery powered;Working frequency is 315M, steady using sound table resonator SAW Frequently, when environment temperature changes between -25~+85 degree, float only 3ppm/ degree frequently.Effective propagation path be more than 200 meters, and And stability is high, strong antijamming capability.
Further, also referring to Fig. 1 to Fig. 2, as a kind of elevator safety warning device provided by the invention A kind of embodiment, first power supply module 15 and second power supply module 23 are 18650 type lithium batteries. 18650 type lithium battery capacities are big, and power supply performance is stable, and service life is long and can charge repeatedly.
At work, nearly electric induction module 11 gathers electric field signal intensity to the elevator safety warning device of the present invention, will The data of collection are sent in controller 10, and controller 10 analyzes and processes to data, where the table top of lift is judged When position has electric shock hidden danger, alarm terminal 1 responds, and flash lamp enters line flicker, buzzer sends the sound, be simultaneously emitted by signal to Display terminal 2 on base, after display terminal 2 receives signal, while the second alarm module 21 is sent response, glisten Lamp enters line flicker, buzzer sends the sound, reminds operating personnel to have Danger Electric shock risk, it is necessary to leave danger zone as early as possible, so reports Alert terminal and display terminal double-reminding operating personnel lift the safety of machine table top, improve the safety that operating personnel operate lift Property, reduce dangerous.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.

Claims (10)

  1. A kind of 1. elevator safety warning device, it is characterised in that:Including the alarm terminal being arranged on lifting machine table top, control Lift the display terminal on the base of machine table top lifting;
    The alarm terminal includes controller, nearly electric induction module, apart from induction module, the first alarm module, wireless transmission mould Block and the first power supply module, in addition to be connected with the nearly electric induction module, setting and the alarm of alive circuit or equipment room The adjusting knob of distance, it is the nearly electric induction module, first alarm module, described apart from induction module and the wireless hair Module is sent to connect the controller respectively;First power supply module connect respectively the controller, the nearly electric induction module, It is first alarm module, described apart from induction module and the wireless sending module;
    The display terminal includes the second alarm module, wireless receiving module and the second power supply module, second power supply module Second alarm module, the wireless receiving module are connected respectively;
    Communicated between the alarm terminal and the display terminal by the wireless sending module and wireless receiving module;
    When the distance for lifting machine table top and alive circuit or equipment room is less than or equal to alarm distance, alarm terminal alarm is concurrent Deliver letters breath, display terminal receive information is simultaneously alarmed.
  2. A kind of 2. elevator safety warning device as claimed in claim 1, it is characterised in that:The alarm terminal also includes close Seal waterproof case, it is the controller, the first alarm module, equal apart from induction module, wireless sending module and the first power supply module The enclosure is arranged at, the nearly electric induction module is arranged on the outer wall of the shell.
  3. A kind of 3. elevator safety warning device as claimed in claim 1, it is characterised in that:The alarm terminal also includes magnetic Iron, the magnet are arranged at the bottom of the alarm terminal.
  4. A kind of 4. elevator safety warning device as claimed in claim 1, it is characterised in that:The display terminal also includes aobvious Show device, second alarm module, wireless receiving module and the second power supply module may be contained within the display interior, described aobvious Show that device is fixed on the control base of the lifting machine table top.
  5. A kind of 5. elevator safety warning device as claimed in claim 1, it is characterised in that:First alarm module and Two alarm modules include buzzer and flash lamp;The buzzer and flash lamp are installed in the inner upper end of the shell Place, or at the inner upper end of the display.
  6. A kind of 6. elevator safety warning device as claimed in claim 1, it is characterised in that:The controller selects monolithic Machine.
  7. A kind of 7. elevator safety warning device as claimed in claim 1, it is characterised in that:The alarm terminal is arranged on institute It is at least two to state the number on lifting machine table top.
  8. A kind of 8. elevator safety warning device as claimed in claim 7, it is characterised in that:The alarm terminal number is 3- 4, it is uniformly distributed in center and the marginal position of lifting machine table top.
  9. A kind of 9. elevator safety warning device as claimed in claim 1, it is characterised in that:The wireless sending module is The transmitting terminal of 433m wireless modules, the wireless receiving module are the receiving terminal of 433m wireless modules.
  10. A kind of 10. elevator safety warning device as claimed in claim 1, it is characterised in that:First power supply module and Second power supply module is 18650 type lithium batteries.
CN201710978158.XA 2017-10-19 2017-10-19 A kind of elevator safety warning device Pending CN107730831A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710978158.XA CN107730831A (en) 2017-10-19 2017-10-19 A kind of elevator safety warning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710978158.XA CN107730831A (en) 2017-10-19 2017-10-19 A kind of elevator safety warning device

Publications (1)

Publication Number Publication Date
CN107730831A true CN107730831A (en) 2018-02-23

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Application Number Title Priority Date Filing Date
CN201710978158.XA Pending CN107730831A (en) 2017-10-19 2017-10-19 A kind of elevator safety warning device

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Country Link
CN (1) CN107730831A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112489386A (en) * 2020-11-26 2021-03-12 国网山东省电力公司平阴县供电公司 Large-scale machinery nearly electric construction early warning device
CN113225528A (en) * 2021-04-16 2021-08-06 湖南省京湘电力开发有限公司 Electric power construction safety management system based on electric power thing networking

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Publication number Priority date Publication date Assignee Title
KR101131947B1 (en) * 2010-12-03 2012-03-29 신도산업 주식회사 Warning apparatus for accident prevention in road construction field
CN202736231U (en) * 2012-08-03 2013-02-13 山东电力集团公司日照供电公司 Novel high voltage on-site construction machinery high voltage line touch-proof alarm device
CN204856821U (en) * 2015-06-04 2015-12-09 国家电网公司 Safety warning equipment
CN105356084A (en) * 2015-11-30 2016-02-24 国网北京市电力公司 Grounding wire and method using same for live detection
CN205788654U (en) * 2016-05-24 2016-12-07 国网天津市电力公司 A kind of split type safety alarm for nearly electro-detection
CN206489686U (en) * 2017-03-01 2017-09-12 华北电力大学(保定) A kind of split type nearly electric induction prior-warning device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101131947B1 (en) * 2010-12-03 2012-03-29 신도산업 주식회사 Warning apparatus for accident prevention in road construction field
CN202736231U (en) * 2012-08-03 2013-02-13 山东电力集团公司日照供电公司 Novel high voltage on-site construction machinery high voltage line touch-proof alarm device
CN204856821U (en) * 2015-06-04 2015-12-09 国家电网公司 Safety warning equipment
CN105356084A (en) * 2015-11-30 2016-02-24 国网北京市电力公司 Grounding wire and method using same for live detection
CN205788654U (en) * 2016-05-24 2016-12-07 国网天津市电力公司 A kind of split type safety alarm for nearly electro-detection
CN206489686U (en) * 2017-03-01 2017-09-12 华北电力大学(保定) A kind of split type nearly electric induction prior-warning device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112489386A (en) * 2020-11-26 2021-03-12 国网山东省电力公司平阴县供电公司 Large-scale machinery nearly electric construction early warning device
CN112489386B (en) * 2020-11-26 2022-04-08 国网山东省电力公司平阴县供电公司 Large-scale machinery nearly electric construction early warning device
CN113225528A (en) * 2021-04-16 2021-08-06 湖南省京湘电力开发有限公司 Electric power construction safety management system based on electric power thing networking

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Application publication date: 20180223