CN110907689A - Complete passive high sensitivity intelligence thunder meter - Google Patents
Complete passive high sensitivity intelligence thunder meter Download PDFInfo
- Publication number
- CN110907689A CN110907689A CN201911154060.8A CN201911154060A CN110907689A CN 110907689 A CN110907689 A CN 110907689A CN 201911154060 A CN201911154060 A CN 201911154060A CN 110907689 A CN110907689 A CN 110907689A
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- China
- Prior art keywords
- lightning
- circuit
- induction coil
- power supply
- controller
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/17—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values giving an indication of the number of times this occurs, i.e. multi-channel analysers
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Abstract
The invention provides a completely passive high-sensitivity intelligent lightning counter, which comprises a down lead, an induction coil circuit and a controller, wherein the down lead is arranged at the bottom of a building and is connected with a lightning protection facility at the top of the building and a ground grid buried underground, a coil of the induction coil circuit is sleeved outside the down lead to induce lightning current, the output of the coil is connected with a linear voltage stabilizer, the output voltage of the linear voltage stabilizer is not more than 3.3V, the output end of the linear voltage stabilizer is connected with the controller to provide a working power supply for the controller, a circuit for realizing lightning counting and an embedded software program are integrated in the controller, the intelligent lightning counter is powered by utilizing the lightning current and realizes the recording of the lightning stroke times, when the lightning current passes through the down lead, the intelligent lightning counter induces the energy of the lightning current through the induction coil of the intelligent lightning counter and stores the energy into the induction coil circuit, and supplies power to the MCU and records the number of lightning strokes.
Description
Technical Field
The invention relates to the technical field of lightning monitoring, in particular to a completely passive high-sensitivity intelligent lightning counter.
Background
The intelligent lightning counter is a measuring instrument for detecting and recording the number of times of the current leakage action of the lightning protection device, namely recording the number of times of lightning current impact, so that a user can conveniently count and analyze the thunderstorm condition of a specific area. The width of intelligence meter thunder ware is 2 standard module, can use with various power lightning protection device collocation, also can regard as the supporting product of equipment such as lightning protection box. The traditional lightning stroke counter is powered by 220V alternating current, when a lightning stroke accident occurs, the power failure of a local short time can be accompanied, the lightning stroke counter cannot count normally after the power failure, and the main effect of the lightning stroke counter is lost. Therefore, there is a need for a completely passive intelligent lightning counter product that can count normally even when the power supply line is out of power.
Disclosure of Invention
There is a need for a fully passive, high sensitivity intelligent lightning counter.
The utility model provides a complete passive high sensitivity intelligence thunder meter, includes downlead, induction coil circuit, controller, the downlead sets up in the building bottom, and with the lightning protection facility of building top and bury underground ground net and be connected, the coil cover of induction coil circuit is located the downlead outside to response lightning current, the output connection linear voltage regulator of coil, linear voltage regulator's output voltage is not more than 3.3V, and linear voltage regulator's output connection director provides working power supply for the controller, the inside integrated circuit and the embedded software program that realize the thunder and lightning count of controller.
Preferably, the induction coil circuit includes induction coil, rectifier bridge, protective resistor, energy storage capacitor, linear voltage regulator, and the rectifier bridge is connected to induction coil's two poles of the earth, and protective resistor and energy storage capacitor are parallelly connected the back and are established ties with the rectifier bridge, and linear voltage regulator is connected to the energy storage capacitor, linear voltage regulator's output voltage is not more than 3.3V.
Preferably, the linear voltage regulator adopts a low-power consumption chip of TPS 76033.
Preferably, the lightning counter further comprises a mains supply circuit, the mains supply circuit comprises an AC-DC power supply circuit and a DC-DC power supply circuit,
the commercial power supply circuit and the induction coil circuit are connected in parallel and then are connected into the controller to provide power for the controller.
Preferably, the controller is an MCU, pins of the MCU for providing power are connected with the mains supply circuit and the induction coil circuit which are connected in parallel, so that complementary power supply is provided for the MCU through the mains supply circuit and the induction coil circuit, and the VCC output voltage of the induction coil circuit is lower than 3.3V of the mains supply circuit.
Preferably, the lightning counter further comprises a display circuit, and a power supply of the display circuit is connected with the output end of the commercial power supply circuit and the output end of the induction coil circuit which are connected in parallel.
In the invention, the lightning current is used for supplying power to the intelligent lightning counter and recording the lightning stroke times, when the lightning current passes through the down conductor, the intelligent lightning counter senses the energy of the lightning current through the induction coil of the intelligent lightning counter and stores the energy into the induction coil circuit, and supplies power to the MCU and records the lightning stroke times.
When the lightning frequency is counted, no built-in battery is needed, no power supply is needed, and the induced current is larger than 2KA and can be counted; after the power supply of 220V is connected, the sensitivity is greatly improved, the induced current is larger than 250A, counting can be carried out, and data can never be lost after power failure.
The ARM technology is high in performance, low in power consumption, safe and reliable, lightning stroke times can be displayed by clicking the keys, and zero clearing can be achieved by pressing the keys for 5 seconds.
Drawings
FIG. 1 is a circuit diagram of an MCU according to the present invention.
Fig. 2 is a diagram of an AC-DC circuit in a mains circuit.
Fig. 3 is a diagram of a DC-DC circuit in a mains circuit. In this figure, the connection relationship between VCC and V3.3 in parallel is also shown.
Fig. 4 is a circuit diagram of an induction coil circuit.
Fig. 5 is a circuit diagram of a display circuit.
Fig. 6 is a schematic diagram of the application state of the present invention.
In the figure: down conductor 10, induction coil circuit 20, coil 21, controller 30, commercial power supply circuit 40, display circuit 50.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1-6, an embodiment of the present invention provides a completely passive high-sensitivity intelligent lightning counter, including a down conductor 10, an induction coil circuit 20, and a controller 30, wherein the down conductor 10 is disposed at the bottom of a building, and is connected with a lightning protection facility on the top of a building and a ground grid buried underground, the coil 21 of the induction coil circuit 20 is sleeved outside the down conductor 10, the output of the coil 21 is connected with a linear voltage stabilizer by inducing lightning current, the output voltage of the linear voltage stabilizer is not more than 3.3V, the output end of the linear voltage stabilizer is connected with a controller 30, the controller 30 is integrated with a circuit for counting lightning and an embedded software program (the circuit of the lightning technology can be realized by a conventional lightning counter in the prior art, and in the scheme, the power supply of the conventional lightning counter can be provided by adopting the scheme).
Further, induction coil circuit 20 includes induction coil, rectifier bridge, protective resistor, energy storage capacitor, linear voltage regulator, and the rectifier bridge is connected to induction coil's the two poles of the earth, and protective resistor and energy storage capacitor are parallelly connected the back and are established ties with the rectifier bridge, and linear voltage regulator is connected to the energy storage capacitor, linear voltage regulator's output voltage is not more than 3.3V.
In the circuit, a rectifier bridge is adopted to remove impurities and rectify lightning current to form directional current, a protective resistor RV1 is a piezoresistor and protects subsequent TPS, an energy storage capacitor C8 is a tantalum electrolytic capacitor and is used for storing electric energy of lightning, a linear voltage stabilizer converts the lightning current voltage into constant voltage not exceeding 3.3V, and a working power supply required by lightning counting is provided for an MCU (microprogrammed control Unit).
In the circuit, a rectifier bridge selects four diodes, namely D1FR103, D3FR103, D2FR104 and D4FR104, so that the rectified output voltage is not more than 16V, a piezoresistor RV1 selects 7K330, the energy storage voltage selects a 100uF tantalum capacitor with positive and negative electrodes, a non-return diode selects D5 SMBJ15A, a linear voltage stabilizer selects TPS76033 of TPS760X series, the input is 3.5V-16V, and the output is 3.3V.
Further, the linear voltage regulator adopts a TPS76033 low-power consumption chip.
The linear regulator is selected from the following table:
further, the lightning counter also comprises a mains supply circuit 40, the mains supply circuit 40 comprises an AC-DC power supply circuit and a DC-DC power supply circuit,
the commercial power supply circuit 40 is connected in parallel with the induction coil circuit 20 and then connected to the controller 30 to provide power for the controller 30.
The coil circuit stores thunder and lightning electric energy through the energy storage capacitor, when the commercial power has a power failure, the circuit supplies power for the MCU, because the circuit is connected with the MCU after being connected with the commercial power circuit in parallel, seamless butt joint with the commercial power having a power failure is realized, because the circuit sets the output of the thunder and lightning voltage to be lower than 3 and 3V, namely, the output of the thunder and lightning voltage is lower than the direct current voltage of the commercial power, under the normal condition, the commercial power provides power for the chip, and after the commercial power has a power failure, the thunder and lightning voltage provides voltage for the MCU.
Through tests, when the lightning current provides the power supply, the MCU counts the lightning once, the required current is larger than 2KA, and the required time is not more than 24ms, so that the lightning current counting method can be realized. Generally, lightning current is above 10KA, so when the lightning current is supplied independently, the discharge time of the energy storage capacitor can last for more than 24ms, and the passive counting function can be realized.
However, after the 220V mains supply is connected, the chip is used for counting the action current of the thunder and lightning once which is more than 250A, and the counting can be realized, so that the sensitivity is greatly improved after the commercial power is connected, but in a passive state, the counting can be realized by providing electric energy by the thunder and lightning current.
Further, controller 30 is MCU, and STM32F103C8T6 can be selected for use to the model, and MCU provides the commercial power supply circuit 40 and the induction coil circuit 20 after the pin of power all connects parallelly connected to supply power through commercial power supply circuit 40 and induction coil circuit 20 for MCU provides complementary power supply, and the VCC output voltage of induction coil circuit 20 is less than the 3.3V of commercial power supply circuit 40.
When this scheme was realized, it was parallelly connected with coil circuit's output voltage VCC and commercial power supply current's output V3.3, and at VCC rear end in series a diode D8 to slightly step down the VCC, thereby make VCC slightly be less than commercial power V3.3. Therefore, when the mains supply is normal, the higher voltage V3.3 provides power for the MCU, and when the mains supply is powered off, the VCC provides power. As shown in fig. 3.
Further, the lightning counter further comprises a display circuit 50 for displaying the number of lightning counts, and the power supply of the display circuit 50 is connected with the output end of the commercial power supply circuit 40 and the output end of the induction coil circuit 20 which are connected in parallel.
The modules or units in the device of the embodiment of the invention can be combined, divided and deleted according to actual needs.
The foregoing is directed to embodiments of the present invention, which do not limit the scope of the invention, and the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It will be understood by those skilled in the art that all or a portion of the above-described embodiments may be practiced and equivalents thereof may be resorted to as falling within the scope of the invention as claimed. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a complete passive high sensitivity intelligence thunder meter which characterized in that: including downlead, induction coil circuit, controller, the downlead sets up in the building bottom, and with the lightning protection facility of building top and bury underground ground net and be connected, the downlead outside is located to the coil cover of induction coil circuit to response lightning current, the output connection linear voltage regulator of coil, linear voltage regulator's output voltage is not more than 3.3V, and linear voltage regulator's output connection director for the controller provides working power supply, the inside integrated circuit that realizes the thunder and lightning count of controller.
2. The fully passive, high-sensitivity intelligent lightning counter of claim 1, characterized in that: the induction coil circuit comprises an induction coil, a rectifier bridge, a protective resistor, an energy storage capacitor and a linear voltage stabilizer, wherein the two poles of the induction coil are connected with the rectifier bridge, the protective resistor is connected with the energy storage capacitor in parallel and then connected with the rectifier bridge in series, the energy storage capacitor is connected with the linear voltage stabilizer, and the output voltage of the linear voltage stabilizer is not more than 3.3V.
3. The fully passive, high-sensitivity intelligent lightning counter of claim 2, characterized in that: the linear voltage regulator adopts a TPS76033 low-power consumption chip.
4. The fully passive, high-sensitivity intelligent lightning counter of claim 2, characterized in that: the lightning counter also comprises a mains supply circuit, the mains supply circuit comprises an AC-DC power supply circuit and a DC-DC power supply circuit,
the commercial power supply circuit and the induction coil circuit are connected in parallel and then are connected into the controller to provide power for the controller.
5. The fully passive, high-sensitivity intelligent lightning counter of claim 2, characterized in that: the controller is MCU, and the commercial power supply circuit and the induction coil circuit after parallelly connected are all connected to the pin that MCU provided the power to supply complementary power for MCU through commercial power supply circuit and induction coil circuit, induction coil circuit's VCC output voltage is less than the 3.3V of commercial power supply circuit.
6. The fully passive, high-sensitivity intelligent lightning counter of claim 2, characterized in that: the lightning counter also comprises a display circuit, and the power supply of the display circuit is connected with the output end of the commercial power supply circuit and the output end of the induction coil circuit which are connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911154060.8A CN110907689A (en) | 2019-11-22 | 2019-11-22 | Complete passive high sensitivity intelligence thunder meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911154060.8A CN110907689A (en) | 2019-11-22 | 2019-11-22 | Complete passive high sensitivity intelligence thunder meter |
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| CN110907689A true CN110907689A (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911154060.8A Pending CN110907689A (en) | 2019-11-22 | 2019-11-22 | Complete passive high sensitivity intelligence thunder meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112527040A (en) * | 2020-11-25 | 2021-03-19 | 合肥同智机电控制技术有限公司 | Linear voltage stabilizing circuit |
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| CN1074540A (en) * | 1992-01-15 | 1993-07-21 | 中国科学院电工研究所 | Thunder and lightning counter for lightning arrester |
| CN2819227Y (en) * | 2005-04-21 | 2006-09-20 | 林云志 | Thunderbolt counter |
| CN101825654A (en) * | 2010-04-26 | 2010-09-08 | 重庆大学 | Self energy supply lightning current detection system |
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| CN201926695U (en) * | 2010-12-15 | 2011-08-10 | 南京德闰电气有限公司 | Arrester action current amplitude monitor |
| CN201984106U (en) * | 2011-05-17 | 2011-09-21 | 上海雷迅防雷技术有限公司 | Intelligent lightening stroke counter |
| CN202049192U (en) * | 2011-04-30 | 2011-11-23 | 广州易仕科技有限公司 | High-sensitivity passive direct lightning flash induction counter |
| CN203299265U (en) * | 2013-03-22 | 2013-11-20 | 武汉维京网络科技有限公司 | Thunder counter |
| CN203772972U (en) * | 2013-11-15 | 2014-08-13 | 国家电网公司 | Hardware connection unit of lightning arrester on-line monitoring device |
| KR101645226B1 (en) * | 2015-06-30 | 2016-08-03 | (주)조인에프에스 | Lightning counter system using earthing terminal box |
| CN206117295U (en) * | 2016-08-31 | 2017-04-19 | 郑州众智科技股份有限公司 | Direct current dual power supply seamless handover module circuit |
| CN206850524U (en) * | 2017-07-12 | 2018-01-05 | 宁夏中科天际防雷检测有限公司 | A kind of thunder and lightning closes on early warning power supply automatic switching control equipment |
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2019
- 2019-11-22 CN CN201911154060.8A patent/CN110907689A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074540A (en) * | 1992-01-15 | 1993-07-21 | 中国科学院电工研究所 | Thunder and lightning counter for lightning arrester |
| CN2819227Y (en) * | 2005-04-21 | 2006-09-20 | 林云志 | Thunderbolt counter |
| CN101825654A (en) * | 2010-04-26 | 2010-09-08 | 重庆大学 | Self energy supply lightning current detection system |
| CN201774307U (en) * | 2010-07-29 | 2011-03-23 | 中山大洋电机制造有限公司 | Power supply circuit of motor of automobile |
| CN201926695U (en) * | 2010-12-15 | 2011-08-10 | 南京德闰电气有限公司 | Arrester action current amplitude monitor |
| CN202049192U (en) * | 2011-04-30 | 2011-11-23 | 广州易仕科技有限公司 | High-sensitivity passive direct lightning flash induction counter |
| CN201984106U (en) * | 2011-05-17 | 2011-09-21 | 上海雷迅防雷技术有限公司 | Intelligent lightening stroke counter |
| CN203299265U (en) * | 2013-03-22 | 2013-11-20 | 武汉维京网络科技有限公司 | Thunder counter |
| CN203772972U (en) * | 2013-11-15 | 2014-08-13 | 国家电网公司 | Hardware connection unit of lightning arrester on-line monitoring device |
| KR101645226B1 (en) * | 2015-06-30 | 2016-08-03 | (주)조인에프에스 | Lightning counter system using earthing terminal box |
| CN206117295U (en) * | 2016-08-31 | 2017-04-19 | 郑州众智科技股份有限公司 | Direct current dual power supply seamless handover module circuit |
| CN206850524U (en) * | 2017-07-12 | 2018-01-05 | 宁夏中科天际防雷检测有限公司 | A kind of thunder and lightning closes on early warning power supply automatic switching control equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112527040A (en) * | 2020-11-25 | 2021-03-19 | 合肥同智机电控制技术有限公司 | Linear voltage stabilizing circuit |
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Application publication date: 20200324 |
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