CN207007933U - One kind is based on RFID passive type shaft tower lightning current monitoring devices - Google Patents
One kind is based on RFID passive type shaft tower lightning current monitoring devices Download PDFInfo
- Publication number
- CN207007933U CN207007933U CN201720722463.8U CN201720722463U CN207007933U CN 207007933 U CN207007933 U CN 207007933U CN 201720722463 U CN201720722463 U CN 201720722463U CN 207007933 U CN207007933 U CN 207007933U
- Authority
- CN
- China
- Prior art keywords
- signal
- shaft tower
- lightning current
- resistance
- sample
- 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.)
- Active
Links
Abstract
The utility model discloses one kind and is based on RFID passive type shaft tower lightning current monitoring devices, is related to a kind of lightning protection monitoring device.Including taking energy circuit (1), sample of signal module (2), Signal-regulated kinase (3), MCU microcontrollers (4), memory module (5), take energy circuit (1) input to be series in tower grounding line, absorb energy；Take energy circuit (1) output end to be connected with Signal-regulated kinase (3), MCU microcontrollers (4) and memory module (5) corresponding end, supply energy；The collection of shaft tower lightning current samples through sample of signal module (2) successively, Signal-regulated kinase (3) is nursed one's health, deliver to MCU microcontrollers (4) and complete signal control and processing, and collection signal is stored in the memory module based on RFID radio RF recognition technologies (5).The utility model is inactive component, has practicality and economy；Security and strong security；It is practically applicable to the monitoring of overhead power transmission line pole tower lightning current.
Description
Technical field
It the utility model is related to power system on-line monitoring technique field, and in particular to one kind is based on RFID passive type shaft towers
Lightning current monitoring device.
Background technology
Thunderbolt is the main harm of transmission line of electricity reliability service.With super, extra-high voltage development, high shaft tower continues to bring out,
So that transmission line of electricity Lightning Protection is more prominent.At present both at home and abroad to the lightning Protection Design of transmission line of electricity mainly by simulated experiment,
Theory analysis and accident research, lack real lightning parameter.Therefore, online prison is implemented to electric power line pole tower lightning current parameter
Survey, the resistance to thunder to effectively assessing transmission line of electricity is horizontal, it is significant to improve the lightning Protection Design of transmission line of electricity.
But shaft tower lightning current on-Line Monitor Device is not popularized on a large scale at present, is primarily due to on-Line Monitor Device
Power supply supply Shortcomings all the time, because device power consumption is larger, therefore need to carry out the supply of its power supply during operation in the wild it is special
Design, such as laser powered sensor or solar powered, still, the cost of laser in itself is higher and transmission power is severely limited,
And it is solar powered the problems such as photoelectric transformation efficiency, cell degradation be present, reliability is difficult to ensure that, these deficiency has limited
The development of lightning monitoring.
Utility model content
The purpose of this utility model is that the problem of overcoming the energy supply of shaft tower lightning current on-Line Monitor Device difficult and provided
A kind of passive type shaft tower lightning current monitoring device based on RFID, the monitoring device effectively utilize the energy of thunder-strike current itself,
For the whole on-Line Monitor Device supply energy that output time is enough, power consumption is enough.And shaft tower lightning current parameter is accessed in
In RFID, digital independent when facilitating power-line patrolling.
What the purpose of this utility model was realized in：
A kind of passive type shaft tower lightning current on-Line Monitor Device based on RFID, it is characterised in that：
Can circuit, sample of signal module, Signal-regulated kinase, MCU microcontrollers, memory module including taking；
Take energy circuit input end to be series in tower grounding line, absorb energy；Taking can circuit output end and signal condition mould
Block, MCU microcontrollers and the connection of memory module corresponding end, supply energy；
Sample of signal module connects with Signal-regulated kinase, is sampled for shaft tower lightning current；
Signal-regulated kinase connects with MCU microcontrollers, is nursed one's health for shaft tower lightning current signals；
MCU microcontrollers and memory module are bi-directionally connected, for signal acquisition control and data processing.
Be based on RFID passive type shaft tower lightning current monitoring devices in above-mentioned one kind, take can circuit by Current Transmit,
Piezo-resistance MOV, rectifier bridge D, capacitor C and dc-dc DC-DC compositions；Rectifier bridge D exchange end parallel-current mutual inductance
Device CT secondary coil N2 and piezo-resistance MOV；Rectifier bridge D DC terminal respectively with electric capacity C, transient surge voltage killer tube SA
It is in parallel with DC-to-dc converter DC-DC.
RFID passive type shaft tower lightning current monitoring devices are based in above-mentioned one kind, sample of signal module is a kind of shaft tower thunder
Current signal sample coil, the coil are from integration type Rogowski coil, are wound on non magnetic skeleton F and formed by enamel-covered wire W, work
It is 150Hz~2MHz to make frequency range, and the sample coil nesting is on shaft tower thunder and lightning circulation road I to be measured, for obtaining shaft tower lightning current
Information.
RFID passive type shaft tower lightning current monitoring devices are based in above-mentioned one kind, Signal-regulated kinase is shaft tower lightning current
Signal conditioning circuit, lightning current positive signal modulate circuit is by integrating resistor R, diode D1, electric capacity C1, resistance R1 and resistance R2 groups
Into integrating resistor R is parallel to sample coil secondary L, and is just connecing, resistance R1 and resistance R2 string in parallel with electric capacity C1 after diode D1
It is in parallel with electric capacity C1 after connection；Lightning current negative signal modulate circuit is made up of diode D2, electric capacity C2, resistance R3 and resistance R4, is taken
Line-transect circle secondary L connects with electric capacity C2, resistance R4, resistance R3, between diode D2 reversal connections and electric capacity C2 right-hand members and the earth.
RFID passive type shaft tower lightning current monitoring devices are based in above-mentioned one kind, memory module is based on RFID less radio-frequencies
The storage system of identification technology, its model Siemens Large Copacity RFID RF622T.
RFID passive type shaft tower lightning current monitoring devices are based in above-mentioned one kind, MCU microcontrollers are using low-power consumption
Single-chip microcomputer, its model C8051F912.
The utility model has following advantages：1st, shaft tower lightning current peak value measurement and waveform recording can be realized, for transmission of electricity
Circuit and shaft tower lightning protection provide authentic and valid data, have important engineering application value；2nd, whole loops do not have power supply, are nothing
Source device, there is practicality and economy；3rd, matched with devices facility is few, and operation principle is clear, and cost is relatively low, it is easy to accomplish, peace
Full property and reliability are higher；4th, data storage can be achieved Large Copacity and store for a long time in RFID, and confidentiality is high, and scene is non-maintaining,
Data read operation is easy, is easy to skillfully grasp, reduces the labor intensity of staff, probability of making a fault is small.
Brief description of the drawings
Fig. 1 is the utility model block diagram.
Fig. 2 is to take energy circuit diagram.
Fig. 3 is sample of signal module diagram.
Fig. 4 is Signal-regulated kinase circuit diagram.
Embodiment：
Below in conjunction with the accompanying drawings with implement detailed example explanation：
In figure, taking can circuit 1；Current sensor CT；Primary coil N1；Secondary coil N2；Piezo-resistance MOV；Rectifier bridge
D；Charging capacitor C；Transient surge voltage killer tube SA；DC-to-dc converter DC-DC.Sample of signal module 2；Non magnetic bone
Frame F；Enamel-covered wire W；Shaft tower thunder and lightning circulation road I；Signal-regulated kinase 3；Sample coil secondary L；Integrating resistor R；Diode D1, two
Level pipe D2, charging capacitor C1, electric capacity C2；Divider resistance R1, divider resistance R2, divider resistance R3, divider resistance R4 MCU it is micro-
Controller 4, memory module 5.
First, general structure
Such as Fig. 1, the utility model includes taking energy circuit 1, sample of signal module 2, Signal-regulated kinase 3, MCU micro-controls
Device 4 processed, memory module 5；
Take the energy input of circuit 1 to be series in tower grounding line, absorb energy；Taking can the output end of circuit 1 and signal condition
Module 3, MCU microcontrollers 4 and the connection of the corresponding end of memory module 5, supply energy；
Sample of signal module 2 and Signal-regulated kinase 3 connect, and are sampled for shaft tower lightning current；
Signal-regulated kinase 3 and MCU microcontrollers 4 connect, and are nursed one's health for shaft tower lightning current signals；
MCU microcontrollers 4 and memory module 5 are bi-directionally connected, for signal acquisition control and data processing.
Operation principle of the present utility model is：
When shaft tower has lightning impulse current generation, for lightning current through energy current sensor primary side is taken, taking can current sense
Device secondary absorbs energy by electromagnetic induction from lightning channel, then is changed by overvoltage protection, rectification, charging, DC-DC direct currents
After device conversion voltage stabilizing, provided for shaft tower lightning current monitoring device and meet time, the power supply of voltage request.Meanwhile in thunder and lightning
Circulation road nesting sample coil, lightning current sampling is carried out, signal condition is then carried out to sampling current, realization aligns, negative polarity
The holding of amplitude of lightning current signal, then collection signal is controlled and handled by MCU microcontrollers, finally by the pole of lightning current
Property, the information data such as peak value in, complete whole signal acquisition process in RFID card mileage.During power-line patrolling, work
Making personnel on site can be by the far distance automatic wireless reading shaft tower lightning current parameter of handhold RFID card reader.
2nd, each function block structure
1st, taking can circuit 1
Such as Fig. 2, energy circuit 1 is taken to be changed by Current Transmit, piezo-resistance MOV, rectifier bridge D, capacitor C and DC-DC
Device DC-DC is formed；Rectifier bridge D exchange end parallel-current transformer CT secondary coil N2 and piezo-resistance MOV；Rectifier bridge D
DC terminal it is in parallel with electric capacity C, transient surge voltage killer tube SA and DC-to-dc converter DC-DC respectively.
Current Transmit includes magnetic core and the primary coil N1 and secondary coil N2 that are wound on magnetic core；Pass through magnetic core and spy
The coil for determining the number of turn changes energy according to certain ratio, and operating power source is provided for Acquisition Circuit.
Its operation principle is:The electric current sensed from the secondary coil N2 of Current Transmit passes through rectifier bridge D rectifications, to filling
Electric capacity C charges.Its magnitude of voltage is in DC-to-dc converter DC-DC input voltage ranges, and charging capacitor is again to direct current-straight
Stream transformer DC-DC is discharged, and dc source is provided to monitoring system by DC-to-dc converter DC-DC；Transient surge voltage
Killer tube SA plays inhibitory action to the voltage more than DC-to-dc converter DC-DC input voltage ranges, protects follow-up electronics
Circuit damages from overvoltage.Piezo-resistance MOV effect is to carry out overvoltage protection.
2nd, sample of signal module 2
Sample of signal module 2 is a kind of shaft tower lightning current signals sample coil, and the coil is led to by electromagnetic induction from thunder and lightning
Road shaft tower obtains thunder and lightning lightning current signals.Such as Fig. 3, the coil be punching from integration type Rogowski coil, be wound on by enamel-covered wire
Formed on non magnetic skeleton.The resistance connect using coil inductance in itself and coil port forms integrator, and working frequency range is
150Hz~2MHz.In view of applied to shaft tower, the sampling Rogowski coil design parameter is interior diameter 0.2m, overall diameter 0.26m,
The a diameter of 0.03m of cross-sectional area, the coil circle of 1mm copper wires coiling 1000.
3rd, Signal-regulated kinase 3
Such as Fig. 4, Signal-regulated kinase 3 is shaft tower lightning current signals modulate circuit, and lightning current positive signal modulate circuit is by accumulating
Sub-resistance R, diode D1, electric capacity C1, resistance R1 and resistance R2 compositions, integrating resistor R are parallel to sample coil secondary L both ends,
And just connect it is in parallel with electric capacity C1 after diode D1, it is in parallel with electric capacity C1 after resistance R1 and resistance R2 series connection；Lightning current negative signal is adjusted
Reason circuit is made up of diode D2, electric capacity C2, resistance R3 and resistance R4, sample coil secondary L and electric capacity C2, resistance R4, resistance
R3 connects, between diode D2 reversal connections and electric capacity C2 right-hand members and the earth.
Its operation principle is：First integrated resistance R establishes voltage to sampling current, when lightning current is positive polarity, diode
D1 is turned on, and D1 is turned off after C1 chargings, and C1 discharges through R1, R2, and by R1 and R2 partial pressures, acquisition meets that the collection of MCU microcontrollers will
The signal voltage asked.When lightning current is negative polarity, diode D2 conductings, D2 is turned off after C2 chargings, and C2 discharges through R3, R4, is led to
R3 and R4 partial pressures are crossed, obtain the signal voltage for meeting that the collection of MCU microcontrollers requires.Be achieved in that align, negative polarity lightning current
The holding of amplitude signal.
4th, MCU microcontrollers 4
Acquisition system mainly realizes reading storage and the function such as communicated with host computer to data.In view of this
Utility model is stricter to the power consumption requirements of single-chip microcomputer using passive power supply mode.Therefore, lowest power consumption in the industry is selected
Single-chip microcomputer model C 8051F912.Power consumption as little as 160uA/MHz under activity pattern, wakeup time 2us.C8051F912 is used
24 pin encapsulate, possess high speed, pipeline organization, the microcontroller core compatible with 8051,12,75ksps, single ended input
ADC, 24 I/O mouths.MCU microcontrollers are mainly completed signal control and worked with Data Analysis Services.
5th, memory module 5
After the completion of MCU microprocessor control system acquisitions, RFID writer is sent to by using serial ports, read write line is connect with nothing
Tactile mode writes thunder-strike current information into RFID tag.Its model Siemens Large Copacity RFID
RF622T.RFID is a kind of contactless automatic identification technology, and it is by radiofrequency signal automatic identification destination object and obtains
Related data, when the distance of handhold read-write device and label card is in effective range, label enters card reader and sends magnetic field, receives
The radiofrequency signal that card reader is sent, integrated chip, which is sent out, in the energy activated label obtained by induced-current is stored in
The information stored in FRAM；After card reader reads information and decoded, deliver to cpu system and carry out relevant data processing.This practicality is new
Type utilizes RFID automatic identification technologies, and shaft tower lightning current monitoring parameters are stored in RFID tag card, during power-line patrolling, work
Personnel on site can pass through the far distance automatic wireless reading shaft tower thunder and lightning stream information of handhold RFID card reader.
The utility model needs the hardware and its attachment structure of foregoing description to be protected, the processing side for being related to signal
Method and process, be in order to explain the operation principle of hardware configuration of the present utility model, be not belonging to the scope of protection of the utility model,
After hardware connection structure of the present utility model, the process of signal transacting can be achieved by the prior art.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (6)
1. one kind is based on RFID passive type shaft tower lightning current monitoring devices, it is characterised in that：
Can circuit (1), sample of signal module (2), Signal-regulated kinase (3), MCU microcontrollers (4), memory module including taking
(5)；
Take energy circuit (1) input to be series in tower grounding line, absorb energy；Taking can circuit (1) output end and signal condition
Module (3), MCU microcontrollers (4) and the connection of memory module (5) corresponding end, supply energy；
Sample of signal module (2) and Signal-regulated kinase (3) connection, are sampled for shaft tower lightning current；
Signal-regulated kinase (3) and MCU microcontrollers (4) connection, are nursed one's health for shaft tower lightning current signals；
MCU microcontrollers (4) and memory module (5) are bi-directionally connected, for signal acquisition control and data processing.
2. one kind according to claim 1 is based on RFID passive type shaft tower lightning current monitoring devices, it is characterised in that：
Energy circuit (1) is taken by Current Transmit, piezo-resistance MOV, rectifier bridge D, capacitor C and dc-dc DC-DC groups
Into；Rectifier bridge D exchange end parallel-current transformer CT secondary coil N2 and piezo-resistance MOV；Rectifier bridge D DC terminal point
It is not in parallel with electric capacity C, transient surge voltage killer tube SA and DC-to-dc converter DC-DC.
3. one kind according to claim 1 is based on RFID passive type shaft tower lightning current monitoring devices, it is characterised in that：
Sample of signal module (2) is a kind of shaft tower lightning current signals sample coil, and the coil is from integration type Rogowski coil, by painting
Envelope curve W is wound on non magnetic skeleton F and formed, and working frequency range is 150Hz~2MHz, and the sample coil nesting is in shaft tower thunder to be measured
On current channel I, for obtaining shaft tower thunder and lightning stream information.
4. one kind according to claim 1 is based on RFID passive type shaft tower lightning current monitoring devices, it is characterised in that：Signal
Conditioning module (3) is shaft tower lightning current signals modulate circuit, lightning current positive signal modulate circuit by integrating resistor R, diode D1,
Electric capacity C1, resistance R1 and resistance R2 compositions, integrating resistor R is parallel to sample coil secondary L, and just connecing after diode D1 with electric capacity
It is in parallel with electric capacity C1 after C1 parallel connections, resistance R1 and resistance R2 series connection；Lightning current negative signal modulate circuit is by diode D2, electric capacity
C2, resistance R3 and resistance R4 compositions, sample coil secondary L connects with electric capacity C2, resistance R4, resistance R3, diode D2 reversal connections and
Between electric capacity C2 right-hand members and the earth.
5. one kind according to claim 1 is based on RFID passive type shaft tower lightning current monitoring devices, it is characterised in that：
The storage system of memory module (5) based on RFID radio RF recognition technologies, its model Siemens Large Copacity RFID electricity
Subtab RF622T.
6. one kind according to claim 1 is based on RFID passive type shaft tower lightning current monitoring devices, it is characterised in that：MCU
Microcontroller (4) uses the single-chip microcomputer of low-power consumption, its model C8051F912.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720722463.8U CN207007933U (en) | 2017-06-20 | 2017-06-20 | One kind is based on RFID passive type shaft tower lightning current monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720722463.8U CN207007933U (en) | 2017-06-20 | 2017-06-20 | One kind is based on RFID passive type shaft tower lightning current monitoring devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207007933U true CN207007933U (en) | 2018-02-13 |
Family
ID=61448192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720722463.8U Active CN207007933U (en) | 2017-06-20 | 2017-06-20 | One kind is based on RFID passive type shaft tower lightning current monitoring devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207007933U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596113A (en) * | 2020-05-19 | 2020-08-28 | 广东电网有限责任公司广州供电局 | Lightning arrester action current measuring circuit and method |
| CN117572060A (en) * | 2024-01-17 | 2024-02-20 | 国网湖北省电力有限公司经济技术研究院 | Non-contact passive distributed cable current measuring device and measuring method |
-
2017
- 2017-06-20 CN CN201720722463.8U patent/CN207007933U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596113A (en) * | 2020-05-19 | 2020-08-28 | 广东电网有限责任公司广州供电局 | Lightning arrester action current measuring circuit and method |
| CN117572060A (en) * | 2024-01-17 | 2024-02-20 | 国网湖北省电力有限公司经济技术研究院 | Non-contact passive distributed cable current measuring device and measuring method |
| CN117572060B (en) * | 2024-01-17 | 2024-04-09 | 国网湖北省电力有限公司经济技术研究院 | Non-contact passive distributed cable current measuring device and measuring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104865499B (en) | A kind of extra high voltage direct current transmission line internal fault external fault recognition methods | |
| CN107193239A (en) | Ground line signals monitoring method based on Internet of Things NBIOT technologies | |
| CN207007933U (en) | One kind is based on RFID passive type shaft tower lightning current monitoring devices | |
| CN202939625U (en) | Transmission line passive digitized signage system | |
| CN203337722U (en) | Voltage and current collecting device of grid overhead transmission line | |
| CN209673250U (en) | A kind of passive and wireless temperature transducer | |
| CN205246806U (en) | Long -range cable on -line measuring system | |
| CN202793627U (en) | Bus joint temperature measuring wireless sensor network (WSN) node | |
| CN203811663U (en) | Wireless current detection unit used for electricity larceny prevention | |
| CN105809938A (en) | Photovoltaic power station cell panel power line carrier monitoring system | |
| CN111044778A (en) | Lightning arrester on-line monitor adopting leakage current for power supply | |
| CN207909325U (en) | A kind of power grid taiwan area identifying system | |
| CN206208977U (en) | A kind of lightning current peak records card | |
| CN207586675U (en) | Ground line signals monitoring system based on Internet of Things NBIOT technologies | |
| CN209432892U (en) | Small-power EPS detecting device for output current | |
| CN209070524U (en) | A kind of low-power consumption isolation type bus takes electric MBUS communication interface circuit | |
| CN203825111U (en) | Zinc oxide lightning arrester on-line monitoring device | |
| CN204884120U (en) | Wireless meter -copy device | |
| CN208939669U (en) | A kind of ultra-high-tension power transmission line ground wire energy taking device | |
| CN208806787U (en) | A kind of telemetering terminal power supply circuit | |
| CN201464534U (en) | Monitoring device for lightning travelling wave in transmission line | |
| CN207301202U (en) | Low-voltage distribution network circuit health status monitors device on-line | |
| CN209372971U (en) | A kind of intelligent capacitor electric inductance measuring-testing instrument | |
| CN101957926B (en) | Radio-frequency card reading and writing circuit controlled and formed by MCU supporting nanoWatt technology | |
| CN206906470U (en) | A kind of wind power generating set lightning recorder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |