CN206440773U - Multi-point power frequency electromagnetic field warning device - Google Patents
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- CN206440773U CN206440773U CN201621305862.6U CN201621305862U CN206440773U CN 206440773 U CN206440773 U CN 206440773U CN 201621305862 U CN201621305862 U CN 201621305862U CN 206440773 U CN206440773 U CN 206440773U
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- 208000007443 Neurasthenia Diseases 0.000 description 2
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Abstract
Multi-point power frequency electromagnetic field warning device, belongs to power frequency electromagnetic field intensity monitoring alarm technique field, including power frequency electromagnetic field intensity detecting device, central production control unit data processor, alarm center data processor, ventilation equipment and mobile terminal.The utility model can reduce operating personnel's inspection and the field operation frequency, reduce operating personnel's occupational disease adverse factor time of contact and contact strength；And alarm, be conducive to the on-call maintenance of equipment, increase the service life of instrument, it is ensured that instrument maintains good use state for a long time, reduce the parking overhaul frequency, increase the safety in production time；Reduce personnel casualty accidentses；Set up accident and abnormal conditions database, reduction accident and abnormal funds in need simultaneously reduce Deal with Time；By the accumulation of big data, data exception cause is judged, understand machine utilization situation, when equipment component is chronically at high-load condition, company can be reminded to increase equipment number of units, reduce individual equipment load.
Description
Technical field
The utility model belongs to power frequency electromagnetic field intensity monitoring alarm technique field, especially relates to a kind of multi-point work
Frequency electromagnetic field warning device, is mainly used between electricity power enterprise's precision equipment and power frequency electric field and power frequency magnetic in communication enterprise base station
Monitoring, warn and dehumidify dust removal installation control.
Background technology
Equipment in state's net Power Equipment Manufacturing Enterprise unit transformer, electricity power enterprise's precision equipment mainly has lead savings electricity
Pond, low-voltage distribution device, high voltage power distribution device, change electric switch, contactor, magnetic starter, protective relaying device, insulating monitoring dress
Put, reactor, arrester, ammeter, voltmeter, power meter and ac and dc systemses supervisory device etc..In communication enterprise base station
Equipment mainly has wireless BTS equipment, wireless BBU equipment, transmission PTN device etc..
Equipment tool between state's net Power Equipment Manufacturing Enterprise unit transformer, electricity power enterprise's precision equipment and in communication enterprise base station
There are uninterrupted continuous operation, stable power output, power frequency electric field and the stable common feature of power frequency magnetic field spectral characteristic.
At this stage, between state's net Power Equipment Manufacturing Enterprise unit transformer, electricity power enterprise's precision equipment and communication enterprise base station according to
By patrol officer's regular visit, safeguard and switching equipment, lack to unit exception situation in time when equipment operation is abnormal
Automatic monitoring, warning device.
Human inspection is combined monitor mode compared to human inspection and monitoring of tools and puts into low, follow-up input height initial stage,
Simultaneously as five limitations felt cause abnormal variation small in operating personnel's None- identified equipment and environment to the mankind in itself,
The accumulation of minor anomaly is frequently resulted in, until generation accident is just found by patrol officer, causes to stop production and social economy when serious
Loss, moreover, between state's net Power Equipment Manufacturing Enterprise unit transformer, electricity power enterprise's precision equipment and in communication enterprise base station frequently
Human inspection operating personnel may be caused to suffer from silicosis, neurasthenia, the possibility of cardiac arrhythmia increase.
Therefore being needed badly among prior art wants a kind of new technical scheme to solve this problem.
The content of the invention
Technical problem to be solved in the utility model is：A kind of multi-point power frequency electromagnetic field warning device is provided, is used for
Solve at this stage between state's net Power Equipment Manufacturing Enterprise unit transformer, electricity power enterprise's precision equipment and communication enterprise base station relies on inspection
Personnel's regular visit, safeguards and switching equipment, lacks the automatic prison to unit exception situation in time when equipment operation is abnormal
Control, warning device；Human inspection lacks automatic monitoring to unit exception situation, warning device, and inspection operating personnel easily suffers from
The technical problem of the occupational diseases such as silicosis, neurasthenia, cardiac arrhythmia.
Multi-point power frequency electromagnetic field warning device, including power frequency electromagnetic field intensity detecting device, central production control unit data
Processor, alarm center data processor, ventilation equipment and mobile terminal, the central production control unit data processor respectively with
Power frequency electromagnetic field intensity detecting device, alarm center data processor and mobile terminal connection；The power frequency electromagnet field intensity
The quantity of detection means is two or more, and wherein at least one power frequency electromagnetic field intensity detecting device is fixedly mounted on outdoor, its
Remaining power frequency electromagnetic field intensity detecting device is fixedly mounted indoors；
The power frequency electromagnetic field intensity detecting device includes reception of wireless signals emitter, insulation protection shell, display surface
Plate, indicator lamp, external interface, power-frequency electric field strength sensor, power frequency magnetic field intensity sensor, operation dish, it is fixed grab, power supply
Line, built-in alarm and controller, the reception of wireless signals emitter are fixedly mounted on the outer wall top of insulation protection shell,
Reception of wireless signals emitter is connected by wireless network with central production control unit data processor；The display panel, refer to
Show that lamp, external interface, power-frequency electric field strength sensor, power frequency magnetic field intensity sensor and operation dish are arranged at insulation protection shell
Lateral wall on；The external interface includes the outer discharge hole of sound and USB interface；The quantity of the USB interface is two or more, its
In one be controller debugging interface, remaining be ventilation equipment interface；The ventilation equipment pass through ventilation equipment interface and control
Device is connected；The lateral wall edge for being arranged on insulation protection shell is grabbed in the fixation；The controller is sent out with reception of wireless signals respectively
Injection device, display panel, indicator lamp, external interface, power-frequency electric field strength sensor, power frequency magnetic field intensity sensor, operation dish,
Power line and the connection of built-in alarm；The built-in alarm is fixedly mounted on the inside of insulation protection shell, built-in alarm
It is adjacent with discharge hole outside the sound.
Radio communication device is connected with the central production control unit data processor.
The quantity that the fixation is grabbed is four, and four fixations are grabbed and are uniformly arranged.
By above-mentioned design, the utility model can bring following beneficial effect：
The utility model is by using the collection of multi-point power frequency electromagnetic field warning device and processing environment power frequency electric field and work
Frequency magnetic field data, to a certain extent instead of operating personnel's inspection, reduces operating personnel's inspection and field operation frequency frequency, together
When reduce time of contact and the contact strength of operating personnel dust exposure, power frequency electric field and power frequency magnetic field, reach reduction manpower into
Originally, protection patrol officer health and the purpose of reduction equipment loss.
The utility model by between state's net Power Equipment Manufacturing Enterprise unit transformer, electricity power enterprise's precision equipment or communication look forward to
Representational stop place and outdoor control point set power frequency electromagnetic field intensity detecting device in the room of industry base station, by collecting chamber
Representational stop place and the data of outdoor control point, safe range, alarm range, fault coverage to the Work places are entered
Row defines and sets functional relation and alert if, reaches that the effect of prompting Work places machine operation and ambient conditions is same
When play following beneficial effect：
1. operating personnel's inspection and the field operation frequency are reduced, while when reducing the contact of operating personnel's occupational disease adverse factor
Between and contact strength；
2. and alarm, when accident does not occur for equipment point out accident abnormality situation, be conducive to the on-call maintenance of equipment, increase
Plus the service life of instrument, it is ensured that instrument maintains good use state for a long time, reduces the parking overhaul frequency, and increase safety is raw
The production time；
3. personnel casualty accidentses are reduced, increase operating personnel's happiness and enterprise's sense of ownership, reminding employees are in abnormal conditions
Wear suitable personal protective equipment.And non-maintenance personal is alerted in the case of equipment severely subnormal must not enter operation privately
Institute, prevents personal injury；
4. setting up accident and abnormal conditions database, when having similar incidents and abnormal conditions from now on, transfer in time previous
Data and processing mode, treatment people contact method provide for same group company across the processing of plant area, the identical accident of cross-region
Processing disposal suggestion, reduction accident and abnormal funds in need simultaneously reduce Deal with Time；
5. may determine that data exception cause in the case of big data, machine utilization situation is understood, when equipment component is located for a long time
In high-load condition, company can be reminded to increase equipment number of units, reduce individual equipment load.
Brief description of the drawings
The utility model is further described below in conjunction with the drawings and specific embodiments：
Fig. 1 is the structured flowchart of the utility model multi-point power frequency electromagnetic field warning device.
Fig. 2 is the structure of power frequency electromagnetic field intensity detecting device in the utility model multi-point power frequency electromagnetic field warning device
Schematic diagram.
Fig. 3 is the operating method FB(flow block) of the utility model multi-point power frequency electromagnetic field warning device.
1- power frequency electromagnetic fields intensity detecting device, 2- central production control units data processor, 3- alarm center data in figure
Processor, 4- ventilation equipment, 5- mobile terminals, 101- reception of wireless signals emitter, 102- insulation protections shell, 103- are shown
Panel, 104- indicator lamps, 105- external interfaces, 106- power-frequency electric field strengths sensor, 107- power frequency magnetic field intensities sensor,
108- operation dishes, 109- fix grab, alarm, 1012- controllers built in 1010- power lines, 1011-.
Embodiment
As illustrated, multi-point power frequency electromagnetic field warning device, including power frequency electromagnetic field intensity detecting device 1, production control
Centre data processor 2 processed, alarm center data processor 3, ventilation equipment 4 and mobile terminal 5, the central production control unit number
It is connected respectively with power frequency electromagnetic field intensity detecting device 1, alarm center data processor 3 and mobile terminal 5 according to processor 2；
The quantity of the power frequency electromagnetic field intensity detecting device 1 is two or more, wherein at least one power frequency electromagnetic field intensity detection dress
Put 1 and be fixedly mounted on outdoor, remaining power frequency electromagnetic field intensity detecting device 1 is fixedly mounted indoors.
The power frequency electromagnetic field intensity detecting device 1 include reception of wireless signals emitter 101, insulation protection shell 102,
Display panel 103, indicator lamp 104, external interface 105, power-frequency electric field strength sensor 106, power frequency magnetic field intensity sensor
107th, 109, power line 1010, built-in alarm 1011 and controller 1012 are grabbed in operation dish 108, fixation, and the wireless signal connects
Transmitting-receiving injection device 101 is fixedly mounted on the outer wall top of insulation protection shell 102, and reception of wireless signals emitter 101 passes through nothing
Gauze network is connected with central production control unit data processor 2；The display panel 103, indicator lamp 104, external interface 105, work
Frequency electric field strength transducer[sensor 106, power frequency magnetic field intensity sensor 107 and operation dish 108 are arranged at the outer of insulation protection shell 102
On the wall of side；The external interface 105 includes the outer discharge hole of sound and USB interface；The quantity of the USB interface is two or more, its
In one be the debugging interface of controller 1012, remaining be ventilation equipment interface；The ventilation equipment 4 by ventilation equipment interface with
Controller 1012 is connected；The 109 lateral wall edges for being arranged on insulation protection shell 102 are grabbed in the fixation；1012 points of the controller
Do not passed with reception of wireless signals emitter 101, display panel 103, indicator lamp 104, external interface 105, power-frequency electric field strength
Sensor 106, power frequency magnetic field intensity sensor 107, operation dish 108, power line 1010 and built-in alarm 1011 are connected；It is described
Built-in alarm 1011 is fixedly mounted on the inside of insulation protection shell 102, built-in alarm 1011 and the outer discharge hole phase of the sound
It is adjacent.
Radio communication device is connected with the central production control unit data processor 2.
The quantity that the fixation grabs 109 is four, and four fixations are grabbed 109 and are uniformly arranged.
The operating method of multi-point power frequency electromagnetic field warning device, is alarmed using described multi-point power frequency electromagnetic field and filled
Put, comprise the following steps, and following steps are sequentially carried out,
Step 1: by equipment room or the total number of units of base station equipment, equipment rated power, equipment less than rated power operation
Power-frequency electric field strength load when power-frequency electric field strength load maximum, equipment are less than rated power operation in unit interval step-length
Power-frequency electric field strength load maximum, equipment when changing maximum, equipment rated power operation are less than rated power operation
Power frequency magnetic field intensity load when power frequency magnetic field intensity load maximum, equipment are less than rated power operation in unit interval step-length
Power frequency magnetic field intensity load maximum and equipment specified longest run time when change maximum, equipment rated power operation
Typing central production control unit data processor 2；
Step 2: ventilation equipment 4 are connected with controller 1012 by ventilation equipment interface, by equipment room or base station
The number of units of ventilation equipment 4 and the rated power typing central production control unit data processor 2 of ventilation equipment 4；
Step 3: installing power frequency electromagnetic field intensity detecting device 1, the power frequency magnetic field intensity of the device in outdoor control point
The environment power frequency magnetic field intensity value B of the outdoor control point of the collection in real time of sensor 1072, unit T, power-frequency electric field strength sensor 106
Outdoor power-frequency electric field strength value E is gathered in real time2, unit V/m, and the information of collection is passed through into reception of wireless signals emitter
101 transmit to central production control unit data processor 2,
Power frequency electromagnetic field intensity detecting device 1, the power frequency magnetic field intensity sensing of the device are installed in equipment room or base station
Device 107 gathers indoor environment power frequency magnetic field intensity value B in real time1, unit T, the real-time collection room of power-frequency electric field strength sensor 106
Interior power-frequency electric field strength value E1, unit V/m, and the data message of collection is passed by reception of wireless signals emitter 101
Transport to central production control unit data processor 2；
Step 4: central production control unit data processor 2 is according to equipment room or the total number of units of base station equipment, the specified work(of equipment
When rate, equipment are less than rated power operation less than power-frequency electric field strength load maximum, the equipment of rated power operation during unit
Between power-frequency electric field strength load variations maximum in step-length, equipment rated power operation when power-frequency electric field strength load it is maximum
When value, equipment are less than rated power operation less than power frequency magnetic field intensity load maximum, the equipment of rated power operation during unit
Between power frequency magnetic field intensity load variations maximum in step-length, equipment rated power operation when power frequency magnetic field intensity load it is maximum
Value and the power-frequency electric field strength value of equipment specified longest run time, indoor environment power frequency magnetic field intensity value and interior are built
Vertical environment acceptable degree intensity δ formula of warning are as follows：
The κ θ φ (α σ ξ/γ+β τ ψ/λ) of δ=0.5
Wherein, δ is that environment acceptable degree is warned intensity, and κ is the influence coefficient run to equipment in the continuous working period, θ
The influence coefficient that machine utilization is run to equipment, φ is ventilation equipment stream factor, and α is what power-frequency electric field strength was run to equipment
Coefficient is influenceed, α span is that 0.5~2, σ is indoor and outdoor control point power-frequency electric field strength coefficient of variation, and ξ is power frequency
Electric-field intensity variation coefficient, γ is power-frequency electric field strength load coefficient, and β is the influence system that power frequency magnetic field intensity is run to equipment
Number, span is that 0.5~2, τ is indoor and outdoor control point environment power frequency magnetic field intensity coefficient of variation, and ψ is that power frequency magnetic field is strong
Variation coefficient is spent, λ is power frequency magnetic field intensity load coefficient,
Central production control unit data processor 2 is chosen from the data message received：Power frequency magnetic field intensity sensor 107
The t of collection1Moment indoor environment power frequency magnetic field intensity measured value is B1t1, the t that power frequency magnetic field intensity sensor 107 is gathered2Moment
Indoor power frequency magnetic field intensity measured value is B1t2, the t that power-frequency electric field strength sensor 106 is gathered1Moment interior power-frequency electric field strength
Measured value is E1t1, the t that power-frequency electric field strength sensor 106 is gathered2Moment interior power-frequency electric field strength measured value is E1t2, and set
Order position time step Δ t=t2-t1,
The value for the influence coefficient κ that continuous working period is run to equipment：
κ spans are 0.2~0.8,
κ spans are 2~5,
Wherein, t '1、t′2、t′3…t′nFor unit equipment continuous operating time, unit is year,
T1、T2、T3…TnFor the unit equipment specified longest run time, unit is year,
N is the total number of units of equipment；
The value for the influence coefficient θ that machine utilization is run to equipment：
θ span is 0.2~0.8,
θ span is 1.5~5,
Wherein, w '1、w′2、w′3…w′nFor unit equipment actual power, unit W,
W1、W2、W3…WnFor unit equipment rated power, unit W,
N is the total number of units of equipment；
Ventilation equipment stream factor φ value：
Ventilation equipment start normal φ and take 1,
The span that ventilation equipment start exception φ is 1.2~5；
Indoor and outdoor control point power-frequency electric field strength coefficient of variation σ value：
E1＜ E2,
E1≥E2,
Wherein, E1For the indoor power-frequency electric field strength value gathered in real time, unit V/m,
E2For the outdoor control point power-frequency electric field strength value gathered in real time, unit V/m；
Power-frequency electric field strength variation coefficient ξ value：
ξ spans are 0.5~0.8,
ξ values are 1,
ξ spans are 2~5,
Wherein, E1t1For t1Moment interior power-frequency electric field strength measured value,
E1t2For t2Moment interior power-frequency electric field strength measured value,
Δ t is t1Moment is to t2The unit interval step-length at moment,
Δ E is that power-frequency electric field strength load variations when equipment is less than rated power operation in unit interval step-length are maximum
Value；
Power-frequency electric field strength load coefficient γ value：
E1≤γ1,
E1＞ γ1,
Wherein, E1For the indoor power-frequency electric field strength value gathered in real time, unit V/m,
γ1It is equipment less than or equal to rated power operation power-frequency electric field strength maximum, unit V/m,
γ2Exceed rated power operation power-frequency electric field strength maximum, unit V/m for equipment；
Indoor and outdoor control point power frequency magnetic field coefficient of variation τ value：
B1＜ B2,
B1≥B2,
Wherein, B1For the indoor environment power frequency magnetic field intensity value of collection in real time, unit T,
B2For the environment power frequency magnetic field intensity value of the outdoor control point of collection in real time, unit T；
Power frequency magnetic field intensity variation coefficient ψ value：
ψ span is 0.2~0.8,
ψ value is 1,
ψ spans are 2~5,
Wherein, B1t1For t1Moment interior power frequency magnetic field intensity measured value, unit is T,
B1t2For t2Moment interior power frequency magnetic field intensity measured value, unit is T,
Δ t is t1Moment is to t2The unit interval step-length at moment,
Δ B is that power frequency magnetic field intensity load variations when equipment is less than rated power operation in unit interval step-length are maximum
Value；
Power frequency magnetic field intensity load coefficient λ value：
B1≤λ1,
B1＞ λ1,
Wherein, B1For the indoor environment power frequency magnetic field intensity value of collection in real time, unit T,
λ1For equipment be less than or equal to rated power operation power frequency magnetic field field intensity load maximum, unit T,
λ2For equipment rated power operation power frequency magnetic field intensity load maximum, unit T；
Obtain environment acceptable degree according to environment acceptable degree intensity δ formula of warning and warn intensity δ value：
0≤δ≤1, equipment room or base station internal environment are normal, repeat step three and step 4,
1 ＜ δ≤5, equipment room or base station internal environment are abnormal, and central production control unit data processor 2 is to built-in alarm
1011 send environmental abnormality warning signal, and built-in alarm 1011 sends " please overhaul " voice warning, central production control unit data
Processor 2 sends " please overhaul " warning signal to the mobile terminal 5 of patrol officer and the mobile terminal 5 of maintainer,
δ ＞ 5, equipment room or base station internal environment are abnormal, and central production control unit data processor 2 is to alarm center data processing
Device 3 sends environment abnormal alarm signal, and alarm center data processor 3 sends warning signal, production control to alert receipt department
Centre data processor 2 processed sends environment abnormal alarm signal to built-in alarm 1011, and built-in alarm 1011 sends " danger
Danger " voice warning, central production control unit data processor 2 is to the mobile terminal 5 of patrol officer and the mobile terminal 5 of maintainer
" danger " alarm signal is sent, forbids non-maintainer and non-emergency rescue personnel to enter place.
For different environment, each pre-set parameter can be set by debugging repeatedly, environment acceptable degree is warned
Environment truth where intensity δ value reflection instrument and equipment.
Regular maintenance program and equipment, when there is Important Adjustment in production technology, produce load, external environment, personnel etc., from
Step carries out equipment debugging at the beginning.
The utility model is by between state's net Power Equipment Manufacturing Enterprise unit transformer, electricity power enterprise's precision equipment or communicating
Representational stop place and outdoor control point set power frequency electromagnetic field intensity detecting device 1 in the room of enterprise base station, by collecting
The representational stop place in interior and the data of outdoor control point, difference operating mode corresponding power frequency electromagnetic field when record is normally produced
The acquisition time of strength signal, intensity, spectral characteristic (fluctuation characteristic), set up normal Production database, with reference to produce reality and
Other type of industry experiences, formulate the corresponding calculating function of production status and real-time data collection, to the peace of the Work places
Gamut, alarm range, fault coverage are bound and set functional relation and alert if.By debugging function structure repeatedly
And parameter, until equipment can reflect truth, reach the effect of prompting Work places machine operation and ambient conditions.
This complete equipment is networked with security centre, alarm center, is connected with the individual mobile terminal 5 of patrol officer, makes patrol officer, production
Dispatcher, site administrator, production safety administrative department, environmental administration can obtain Work places power frequency in the very first time
Electric-field intensity and power frequency magnetic field intensity data.Equipment can be supplied to control room and operation when Work places have abnormal conditions
Personnel's warning information, reduces the inspection frequency of the operating personnel in the case of equipment operation is normal, abnormal in work site environment
When, point out operating personnel to enter place operation, point out whether operating personnel needs to wear personal protective equipment.Protect operation
Personnel health's safety and reduction equipment loss.
The utility model is substantially distinguished from prior art.Existing detection device is mainly that electric energy metrical is shown or signal intensity
Input and output show, mainly for the production of load monitoring, and mostly equipment is from functional.The utility model is with monitoring personnel's building ring
For the purpose of the quality condition in border set, and with security centre, center cluster of warning, reach part substitute operating personnel's inspection, subtract
The purpose of few operating personnel's inspection frequency.Simultaneously as in equipment monitoring instrument can not monitor pipeline and part mini-plant, it is auxiliary
Help the running situation of equipment, there is monitoring blind spot, the utility model can to a certain extent in filling equipment supervising device without
The blank of method monitoring, plays protection equipment and normally runs, and reduces the effect that the frequency occurs for accident.
If the utility model joins with humidity, the field monitoring equipment of dust concentration in test jobs site surrounding simultaneously
It is dynamic, more preferable effect can be played.
Claims (3)
1. multi-point power frequency electromagnetic field warning device, it is characterized in that：Including power frequency electromagnetic field intensity detecting device (1), production control
Centre data processor (2) processed, alarm center data processor (3), ventilation equipment (4) and mobile terminal (5), the production control
Centre data processor (2) processed respectively with power frequency electromagnetic field intensity detecting device (1), alarm center data processor (3) and
Mobile terminal (5) is connected；The quantity of the power frequency electromagnetic field intensity detecting device (1) is two or more, wherein at least one work
Frequency electromagnetic field intensity detecting device (1) is fixedly mounted on outdoor, and remaining power frequency electromagnetic field intensity detecting device (1) is fixedly mounted
Indoors；
The power frequency electromagnetic field intensity detecting device (1) includes reception of wireless signals emitter (101), insulation protection shell
(102), display panel (103), indicator lamp (104), external interface (105), power-frequency electric field strength sensor (106), power frequency magnetic
(109), power line (1010), built-in alarm (1011) and control are grabbed in field intensity sensor (107), operation dish (108), fixation
Device (1012), the reception of wireless signals emitter (101) is fixedly mounted on the outer wall top of insulation protection shell (102), nothing
Line signal receiving and transmitting unit (101) is connected by wireless network with central production control unit data processor (2)；The display surface
Plate (103), indicator lamp (104), external interface (105), power-frequency electric field strength sensor (106), power frequency magnetic field intensity sensor
(107) it is arranged at operation dish (108) on the lateral wall of insulation protection shell (102)；The external interface (105) includes sound
Outer discharge hole and USB interface；The quantity of the USB interface is two or more, and one of them is controller (1012) debugging interface, its
Remaining is ventilation equipment interface；The ventilation equipment (4) are connected by ventilation equipment Interface and Controler (1012)；The fixation is grabbed
(109) it is arranged on the lateral wall edge of insulation protection shell (102)；The controller (1012) is launched with reception of wireless signals respectively
Device (101), display panel (103), indicator lamp (104), external interface (105), power-frequency electric field strength sensor (106), work
Frequency magnetic field strength transducer (107), operation dish (108), power line (1010) and built-in alarm (1011) connection；In described
The inside that alarm (1011) is fixedly mounted on insulation protection shell (102) is put, built-in alarm (1011) outside the sound with putting
Hole is adjacent.
2. multi-point power frequency electromagnetic field warning device according to claim 1, it is characterized in that：The central production control unit number
According to being connected with radio communication device on processor (2).
3. multi-point power frequency electromagnetic field warning device according to claim 1, it is characterized in that：The fixation is grabbed (109)
Quantity is four, and four fixations are grabbed (109) and are uniformly arranged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621305862.6U CN206440773U (en) | 2016-12-01 | 2016-12-01 | Multi-point power frequency electromagnetic field warning device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680596A (en) * | 2016-12-01 | 2017-05-17 | 国网吉林省电力有限公司电力科学研究院 | Double-point fixed type power frequency electromagnetic field intensity combined alarm system and operation method thereof |
| CN108387816A (en) * | 2018-01-22 | 2018-08-10 | 吉林吉大通信设计院股份有限公司 | A kind of buried feeder line and buried cable Magnetic oriented monitor and alarm system |
| CN111812415A (en) * | 2020-07-21 | 2020-10-23 | 广东电网有限责任公司电力科学研究院 | Method and device for monitoring substation worker to contact power frequency electromagnetic field |
-
2016
- 2016-12-01 CN CN201621305862.6U patent/CN206440773U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680596A (en) * | 2016-12-01 | 2017-05-17 | 国网吉林省电力有限公司电力科学研究院 | Double-point fixed type power frequency electromagnetic field intensity combined alarm system and operation method thereof |
| CN106680596B (en) * | 2016-12-01 | 2023-05-02 | 国网吉林省电力有限公司电力科学研究院 | Double-point fixed type power frequency electromagnetic field intensity combined alarm system and operation method thereof |
| CN108387816A (en) * | 2018-01-22 | 2018-08-10 | 吉林吉大通信设计院股份有限公司 | A kind of buried feeder line and buried cable Magnetic oriented monitor and alarm system |
| CN108387816B (en) * | 2018-01-22 | 2020-09-29 | 吉林吉大通信设计院股份有限公司 | Buried feeder line and buried cable magnetic field positioning monitoring alarm system |
| CN111812415A (en) * | 2020-07-21 | 2020-10-23 | 广东电网有限责任公司电力科学研究院 | Method and device for monitoring substation worker to contact power frequency electromagnetic field |
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