CN215678547U - Global positioning online corona current detection device for lightning protection device - Google Patents
Global positioning online corona current detection device for lightning protection device Download PDFInfo
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- CN215678547U CN215678547U CN202121774656.0U CN202121774656U CN215678547U CN 215678547 U CN215678547 U CN 215678547U CN 202121774656 U CN202121774656 U CN 202121774656U CN 215678547 U CN215678547 U CN 215678547U
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Abstract
The global positioning online corona current detection device for the lightning protection device comprises a controller, wherein a data acquisition component, a power supply protection component, a voltage stabilizer, a leakage current detection component and a communication component are connected to the controller; the data acquisition subassembly is the AD collector, leakage current detection subassembly includes current sensor and caliber, current sensor includes open type rogowski coil, the model of controller is STM32F103C8T6, is equipped with 64 pins on the controller, the controller links to each other with the stabiliser through a pin, the controller links to each other with the AD collector through the sixteen number pin, the controller links to each other with wireless transceiver through twenty number pin and twenty one number pin, the controller links to each other with 485 communicators through thirty-three number pin, thirty-four number pin and thirty-five number pin, the controller links to each other with leakage current detection subassembly through forty number pin, the controller links to each other with power protection subassembly through forty-eighteen number pin.
Description
The technical field is as follows:
the utility model relates to a global positioning online corona current detection device for a lightning protection device.
Background art:
lightning is a powerful and somewhat daunting discharge with lightning and thunder. The condition for generating thunder is that the thundercloud has accumulation and forms polarity, and the thunder can be generally divided into three categories of thermal thunder, sharp thunder and lightning and topographic thunder according to different terrains and meteorological conditions.
Typically, hot lightning is a type of lightning that occurs in summer, often afternoon, often accompanied by rainstorms or hailstones. The hot lightning is formed quickly and does not last for a long time, namely 1-2 hours; the length of the lightning area is no more than 200-300 km, and the width of the lightning area is no more than dozens of kilometers; when strong cold air or warm air flow invades a certain place at the same time, the front cover or the vicinity contacted by the cold air and the warm air can generate cold front thunder and lightning, the topographic thunder and lightning generally appears in a topographic open area, the scale of the topographic thunder and lightning is small, and the occurrence frequency is high.
In order to reduce loss and harm caused by lightning, a lightning protection device is generally required to be arranged, in the lightning protection device, detection of current is always important detection content, in the existing lightning protection detection device, each detection functional component is basically independently arranged, and linkage among the detection functional components is less, so that the function of the lightning protection detection device is single, the lightning protection detection device does not have strong universality, the application range is narrow, and the performance of the lightning protection device cannot be accurately fed back; meanwhile, the detected data cannot be uploaded to the equipment at the user end in time, the response speed is low, the timeliness is poor, and data loss and errors are easy to occur.
The utility model has the following contents:
the embodiment of the utility model provides a global positioning online corona current detection device for a lightning protection device, which has reasonable structural design, can carry out accurate detection and rapid transmission on leakage current parameters of the lightning protection device based on the integrated control function of a controller and by combining various types of electrical elements and communication modes, and carries out linkage matching on various functional modules in the detection device so as to enrich the functions of the whole detection device.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the global positioning online corona current detection device for the lightning protection device comprises a controller, wherein a data acquisition component, a power supply protection component, a voltage stabilizer, a leakage current detection component and a communication component are connected to the controller; the data acquisition assembly is an AD acquisition device and is used for acquiring current signals or voltage signals, the voltage stabilizer is used for providing lasting and stable power supply voltage for control, the power supply protection assembly is used for protecting a controller power supply from interference and inhibiting surge voltage and current, the leakage current detection assembly is used for detecting leakage current signals, and the communication assembly is used for establishing communication connection between the controller and an upper computer so as to realize data transmission; the leakage current detection assembly comprises a current sensor and a measurer, the current sensor comprises an open Rogowski coil, a measuring resistor is connected on the open Rogowski coil in series, and a photoelectric coupler is arranged on the measurer to realize optical signal output; the communication component comprises a wireless transceiver and a 485 communicator; the model of controller is STM32F103C8T6, is equipped with 64 pins on the controller, the controller links to each other with the stabiliser through a pin, the controller links to each other with the AD collector through sixteen numbers pin, the controller links to each other with wireless transceiver through twenty numbers pin and twenty-one numbers pin, the controller links to each other with 485 communicators through thirty-three numbers pin, thirty-four numbers pin and thirty-five numbers pin, the controller links to each other with leakage current detection subassembly through forty numbers pin, the controller links to each other with the power protection subassembly through forty-eight numbers pin.
The model of AD collector is AD8551, is equipped with 8 pins on the AD collector, the AD collector links to each other with the sixteen numbers pin of controller through No. six pins.
The model of stabiliser is LM317, is equipped with 3 pins on the stabiliser, is connected with the UPS power on the pin of stabiliser, is equipped with sixth electric capacity and ninth resistance between the pin of stabiliser and No. two pins, is equipped with tenth resistance and seventh electric capacity between the pin of stabiliser No. two and No. three pins, the pin of stabiliser links to each other with the pin of controller No. three.
The model of the wireless transceiver is ESP8266, 8 pins are arranged on the wireless transceiver, a fourth pin of the wireless transceiver is connected with a twenty-first pin of the controller, and an eighth pin of the wireless transceiver is connected with a twenty-first pin of the controller.
The model of the 485 communicator is SP3485, 8 pins are arranged on the 485 communicator, the second pin and the third pin of the 485 communicator are connected with thirty-four pins of the controller in a short circuit mode, the first pin of the 485 communicator is connected with thirty-three pins of the controller, and the fourth pin of the 485 communicator is connected with thirty-five pins of the controller.
The power protection assembly comprises zinc oxide piezoresistors Re1 and Re2 connected between a live wire, a zero wire and a ground point of a power supply, Re3 is further arranged between the live wire and the zero wire of the power supply, resistors R1, R2, R3 and R4 which are connected in series are arranged between the live wire and the zero wire of the power supply, and capacitors C1, C2, C3 and C4 are arranged between the resistors R1, R2, R3 and R4.
And a strong magnetic field shielding shell is arranged outside the current sensor and the measurer.
The controller is provided with a crystal oscillator, and the crystal oscillator is provided with a third resistor, a first capacitor and a second capacitor which are connected in parallel; and a seventh pin of the controller is connected with a power supply through a third capacitor and a fourth resistor.
By adopting the structure, the voltage signal or the current signal of the corresponding lightning protection device is collected by combining the AD collector with the controller, so that the signals received by the controller are comprehensive and fine; the power supply of the controller is protected from interference through the power supply protection component, surge voltage and current are inhibited, and the controller is ensured to work continuously; the voltage stabilizer is matched with the UPS power supply to provide stable and durable power supply voltage for the controller, so that the performance of the controller is prevented from being influenced by sudden voltage change; detecting a corresponding leakage current signal through a leakage current detection assembly to feed back the corresponding performance of the lightning protection device; the data transmission channel is established between the upper computer and the controller through the transceivers and the communicators in the communication assembly, so that data transmission is realized, and the communication assembly has the advantages of practicality, simplicity, convenience, high efficiency and safety.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an electrical schematic of the controller of the present invention.
Fig. 3 is a schematic structural diagram of a communication assembly according to the present invention.
Fig. 4 is a schematic structural diagram of the leakage detecting assembly of the present invention.
Fig. 5 is an electrical schematic of the power protection assembly of the present invention.
Fig. 6 is an electrical schematic diagram of the AD harvester of the present invention.
Fig. 7 is an electrical schematic diagram of the voltage regulator of the present invention.
Fig. 8 is an electrical schematic diagram of the wireless transceiver of the present invention.
Fig. 9 is an electrical schematic of the 485 communicator of the present invention.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
As shown in fig. 1-9, the global positioning online corona current detection device for a lightning protection device comprises a controller, wherein a data acquisition component, a power protection component, a voltage stabilizer, a leakage current detection component and a communication component are connected to the controller; the data acquisition assembly is an AD acquisition device and is used for acquiring current signals or voltage signals, the voltage stabilizer is used for providing lasting and stable power supply voltage for control, the power supply protection assembly is used for protecting a controller power supply from interference and inhibiting surge voltage and current, the leakage current detection assembly is used for detecting leakage current signals, and the communication assembly is used for establishing communication connection between the controller and an upper computer so as to realize data transmission; the leakage current detection assembly comprises a current sensor and a measurer, the current sensor comprises an open Rogowski coil, a measuring resistor is connected on the open Rogowski coil in series, and a photoelectric coupler is arranged on the measurer to realize optical signal output; the communication component comprises a wireless transceiver and a 485 communicator; the model of controller is STM32F103C8T6, is equipped with 64 pins on the controller, the controller links to each other with the stabiliser through a pin, the controller links to each other with the AD collector through sixteen numbers pin, the controller links to each other with wireless transceiver through twenty numbers pin and twenty-one numbers pin, the controller links to each other with 485 communicators through thirty-three numbers pin, thirty-four numbers pin and thirty-five numbers pin, the controller links to each other with leakage current detection subassembly through forty numbers pin, the controller links to each other with the power protection subassembly through forty-eight numbers pin.
The model of AD collector is AD8551, is equipped with 8 pins on the AD collector, the AD collector links to each other with the sixteen numbers pin of controller through No. six pins.
The model of stabiliser is LM317, is equipped with 3 pins on the stabiliser, is connected with the UPS power on the pin of stabiliser, is equipped with sixth electric capacity and ninth resistance between the pin of stabiliser and No. two pins, is equipped with tenth resistance and seventh electric capacity between the pin of stabiliser No. two and No. three pins, the pin of stabiliser links to each other with the pin of controller No. three.
The model of the wireless transceiver is ESP8266, 8 pins are arranged on the wireless transceiver, a fourth pin of the wireless transceiver is connected with a twenty-first pin of the controller, and an eighth pin of the wireless transceiver is connected with a twenty-first pin of the controller.
The model of the 485 communicator is SP3485, 8 pins are arranged on the 485 communicator, the second pin and the third pin of the 485 communicator are connected with thirty-four pins of the controller in a short circuit mode, the first pin of the 485 communicator is connected with thirty-three pins of the controller, and the fourth pin of the 485 communicator is connected with thirty-five pins of the controller.
The power protection assembly comprises zinc oxide piezoresistors Re1 and Re2 connected between a live wire, a zero wire and a ground point of a power supply, Re3 is further arranged between the live wire and the zero wire of the power supply, resistors R1, R2, R3 and R4 which are connected in series are arranged between the live wire and the zero wire of the power supply, and capacitors C1, C2, C3 and C4 are arranged between the resistors R1, R2, R3 and R4.
And a strong magnetic field shielding shell is arranged outside the current sensor and the measurer.
The controller is provided with a crystal oscillator, and the crystal oscillator is provided with a third resistor, a first capacitor and a second capacitor which are connected in parallel; and a seventh pin of the controller is connected with a power supply through a third capacitor and a fourth resistor.
The working principle of the global positioning online corona current detection device for the lightning protection device in the embodiment of the utility model is as follows: integrated control effect based on controller, combine polymorphic type electric elements and communication mode, can carry out the accurate detection and the rapid transit of leakage current parameter to the lightning protection device, carry out the linkage cooperation with each functional module in the detection device, with richen whole detection device's function, and the online transmission function has still been add, the communicator through the polymorphic type carries out in time quick accurate uploading of data, promote response speed and ageing, reduce the error, accurate feedback out lightning protection device's performance, practical scope is extensive, the lightning protection device of present overwhelming majority all can be suitable for.
In whole scheme, the data acquisition subassembly has connected gradually on the controller, the power protection subassembly, the stabiliser, leakage current detection subassembly and communication subassembly, wherein, the controller is the core subassembly, its type is STM32F103C8T6, be equipped with 64 pins on the controller, the controller links to each other with the stabiliser through a pin, the controller links to each other with the AD collector through sixteen number pin, the controller links to each other with wireless transceiver through twenty number pin and twenty one number pin, the controller passes through thirty-three number pin, thirty-four number pin and thirty-five number pin link to each other with 485 communicator, the controller links to each other with leakage current detection subassembly through forty number pin, the controller passes through forty-eight number pin and links to each other with the power protection subassembly to constitute whole hardware circuit, and rely on above-mentioned whole hardware circuit, realize the accurate short-term test to lightning protection device.
Preferably, the model of the AD collector is AD8551, 8 pins are arranged on the AD collector, the AD collector is connected with the sixteen pins of the controller through the six pins, and detected voltage parameters or current parameters can be transmitted to the controller in real time, so that data omission and loss are prevented.
Preferably, the model of the voltage stabilizer is LM317, 3 pins are arranged on the voltage stabilizer, a UPS power supply is connected on the pin I of the voltage stabilizer, a sixth capacitor and a ninth resistor are arranged between the pin I and the pin II of the voltage stabilizer, a tenth resistor and a seventh capacitor are arranged between the pin II and the pin III of the voltage stabilizer, the pin III of the voltage stabilizer is connected with the pin I of the controller and can provide stable and continuous power supply voltage for the controller to be used in cooperation with the power protection component, the power protection component comprises zinc oxide piezoresistors Re1 and Re2 connected between a live wire, a zero wire and a grounding point of the power supply, Re3 is further arranged between the live wire and the zero wire of the power supply, resistors R1, R2, R3 and R4 which are connected in series are arranged between the live wire and the zero wire of the power supply, capacitors C1, C2, C3 and C4 are arranged between the resistors R3 and R462, and the resistors R2, R4 5, so as to form a voltage suppression circuit and a filter circuit in the power protection component, the voltage suppression circuit is composed of a zinc oxide piezoresistor and is used for suppressing surge voltage and current; the filter circuit is composed of an LC low-pass filter circuit and is used for filtering high-frequency components in the voltage and current signals.
Specifically, the zinc oxide piezoresistors Re1 and Re2 are connected between the live wire, the zero wire and the grounding point of the power supply, and Re3 is connected between the live wire and the zero wire of the power supply, so that the impact of the voltage and current surge of the power supply on the load RL is inhibited. The capacitors C1-C4 link the voltage of the ground point and the power supply voltage together, link the line voltage and the ground potential and prevent the influence of sudden changes of the ground potential on the power supply. The second-order LC circuit formed by the inductor and the capacitor effectively inhibits power supply ripples and filters high-frequency clutter and interference in the circuit. Resistors R1-R4 are connected in series in the circuit to prevent the LC filter circuit from generating self-oscillation. Through the reasonable combination of the zinc oxide piezoresistor and the LC filter circuit, the system power supply is effectively protected, and the normal measurement is ensured.
Preferably, the communication assembly comprises a wireless transceiver and a 485 communicator, the model of the 485 communicator is SP3485, 8 pins are arranged on the 485 communicator, a pin II and a pin III of the 485 communicator are connected with a pin thirty-four of the controller in a short circuit mode, a pin I of the 485 communicator is connected with a pin thirty-three of the controller, and a pin IV of the 485 communicator is connected with a pin thirty-five of the controller; the model of wireless transceiver is ESP8266, is equipped with 8 pins on wireless transceiver, and wireless transceiver's No. four pins link to each other with the No. twenty pin of controller, and wireless transceiver's No. eight pin links to each other with the No. twenty-one pin of controller, makes to establish data transmission's passageway between host computer and the controller, can be applicable to the application scene of multiple difference, selects according to actual demand.
The current sensor and the measurer are externally provided with the high-intensity magnetic field shielding shell, so that the interference of an external magnetic field is eliminated, the acquired detection data is ensured to have small error, and the accuracy is improved.
The power that global positioning online corona current detection device adopted for the lightning protection device is 12V, and the power supply mode divide into two kinds: 1. solar energy power supply, and 2, commercial power supply.
Furthermore, corresponding temperature and humidity parameters can be detected in the detection device, the temperature and humidity parameters are displayed in percentage, the background workers can check conveniently, results are more visual, and detection accuracy is guaranteed.
Particularly, a crystal oscillator is arranged on the controller, and a third resistor, a first capacitor and a second capacitor which are connected in parallel are arranged on the crystal oscillator; the power supply is connected to the No. seven pin of the controller through the third capacitor and the fourth resistor, so that large floating and errors of the controller in the process of internal program operation are prevented, and stable operation of the controller is further guaranteed.
A current-time curve, integral of a certain period of time, calculation of current rising gradient and data storage period of 30 days can be drawn on the upper computer, data query and derivation and thunderstorm statistics are met, and networking is formed by a plurality of stations.
For the current sensor, one path is a Rogowski coil of a PCB (printed Circuit Board), so that the size is reduced, the dynamic characteristic is improved, the current sensor is conveniently and tightly combined with other circuit parts of the measuring unit, and the design and the manufacture of a shielding shell of the measuring unit are also convenient; the other path is a series high-precision measuring resistor, and a signal is extracted through a differential sampling channel; and the synchronous measurement of the two-way signals is beneficial to eliminating interference and improving the measurement precision.
And a control signal and a detection signal of the controller are communicated with an upper computer through a photoelectric conversion isolation port to detect a current signal from a measurement front end, and the communication distance is more than 200 m. All detection and control signals are strictly isolated from the field master control system so as to ensure that the control system is not interfered by a peripheral high-voltage environment.
In summary, the global positioning online corona current detection device for the lightning protection device in the embodiment of the utility model is based on the integrated control function of the controller, and in combination with various types of electrical elements and communication modes, the device can perform accurate detection and rapid transmission of leakage current parameters on the lightning protection device, and each functional module in the detection device is in linkage fit, so that the functions of the whole detection device are enriched, and the online transmission function is added, so that data can be uploaded quickly and accurately in time through various types of communicators, the response speed and timeliness are improved, errors are reduced, the performance of the lightning protection device is accurately fed back, the practical range is wide, and most existing lightning protection devices can be applied.
The above-described embodiments should not be construed as limiting the scope of the utility model, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (8)
1. Global positioning online corona current detection device for lightning protection device, its characterized in that: the leakage current detection device comprises a controller, wherein a data acquisition assembly, a power supply protection assembly, a voltage stabilizer, a leakage current detection assembly and a communication assembly are connected to the controller; the data acquisition assembly is an AD acquisition device and is used for acquiring current signals or voltage signals, the voltage stabilizer is used for providing lasting and stable power supply voltage for control, the power supply protection assembly is used for protecting a controller power supply from interference and inhibiting surge voltage and current, the leakage current detection assembly is used for detecting leakage current signals, and the communication assembly is used for establishing communication connection between the controller and an upper computer so as to realize data transmission; the leakage current detection assembly comprises a current sensor and a measurer, the current sensor comprises an open Rogowski coil, a measuring resistor is connected on the open Rogowski coil in series, and a photoelectric coupler is arranged on the measurer to realize optical signal output; the communication component comprises a wireless transceiver and a 485 communicator; the model of controller is STM32F103C8T6, is equipped with 64 pins on the controller, the controller links to each other with the stabiliser through a pin, the controller links to each other with the AD collector through sixteen numbers pin, the controller links to each other with wireless transceiver through twenty numbers pin and twenty-one numbers pin, the controller links to each other with 485 communicators through thirty-three numbers pin, thirty-four numbers pin and thirty-five numbers pin, the controller links to each other with leakage current detection subassembly through forty numbers pin, the controller links to each other with the power protection subassembly through forty-eight numbers pin.
2. The global positioning online corona current detection device for the lightning protection device according to claim 1, wherein: the model of AD collector is AD8551, is equipped with 8 pins on the AD collector, the AD collector links to each other with the sixteen numbers pin of controller through No. six pins.
3. The global positioning online corona current detection device for the lightning protection device according to claim 1, wherein: the model of stabiliser is LM317, is equipped with 3 pins on the stabiliser, is connected with the UPS power on the pin of stabiliser, is equipped with sixth electric capacity and ninth resistance between the pin of stabiliser and No. two pins, is equipped with tenth resistance and seventh electric capacity between the pin of stabiliser No. two and No. three pins, the pin of stabiliser links to each other with the pin of controller No. three.
4. The global positioning online corona current detection device for the lightning protection device according to claim 1, wherein: the model of the wireless transceiver is ESP8266, 8 pins are arranged on the wireless transceiver, a fourth pin of the wireless transceiver is connected with a twenty-first pin of the controller, and an eighth pin of the wireless transceiver is connected with a twenty-first pin of the controller.
5. The global positioning online corona current detection device for the lightning protection device according to claim 1, wherein: the model of the 485 communicator is SP3485, 8 pins are arranged on the 485 communicator, the second pin and the third pin of the 485 communicator are connected with thirty-four pins of the controller in a short circuit mode, the first pin of the 485 communicator is connected with thirty-three pins of the controller, and the fourth pin of the 485 communicator is connected with thirty-five pins of the controller.
6. The global positioning online corona current detection device for the lightning protection device according to claim 1, wherein: the power protection assembly comprises zinc oxide piezoresistors Re1 and Re2 connected between a live wire, a zero wire and a ground point of a power supply, Re3 is further arranged between the live wire and the zero wire of the power supply, resistors R1, R2, R3 and R4 which are connected in series are arranged between the live wire and the zero wire of the power supply, and capacitors C1, C2, C3 and C4 are arranged between the resistors R1, R2, R3 and R4.
7. The global positioning online corona current detection device for the lightning protection device according to claim 1, wherein: and a strong magnetic field shielding shell is arranged outside the current sensor and the measurer.
8. The global positioning online corona current detection device for the lightning protection device according to claim 1, wherein: the controller is provided with a crystal oscillator, and the crystal oscillator is provided with a third resistor, a first capacitor and a second capacitor which are connected in parallel; and a seventh pin of the controller is connected with a power supply through a third capacitor and a fourth resistor.
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| CN113933572A (en) * | 2021-07-30 | 2022-01-14 | 山东驱雷科技发展有限公司 | Global positioning and online corona current detection device for lightning protection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113933572A (en) * | 2021-07-30 | 2022-01-14 | 山东驱雷科技发展有限公司 | Global positioning and online corona current detection device for lightning protection device |
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