CN111551842A - Lightning protection ground wire monitoring system and method - Google Patents
Lightning protection ground wire monitoring system and method Download PDFInfo
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- CN111551842A CN111551842A CN202010402727.8A CN202010402727A CN111551842A CN 111551842 A CN111551842 A CN 111551842A CN 202010402727 A CN202010402727 A CN 202010402727A CN 111551842 A CN111551842 A CN 111551842A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 113
- 230000005540 biological transmission Effects 0.000 claims description 30
- 238000001914 filtration Methods 0.000 claims description 15
- 230000009467 reduction Effects 0.000 claims description 13
- 230000006641 stabilisation Effects 0.000 claims description 12
- 238000011105 stabilization Methods 0.000 claims description 12
- 208000025274 Lightning injury Diseases 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
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- 238000009421 internal insulation Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2836—Fault-finding or characterising
- G01R31/2843—In-circuit-testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/36—Overload-protection arrangements or circuits for electric measuring instruments
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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
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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Abstract
The invention discloses a lightning protection ground wire monitoring system; the intelligent alarm system comprises a power supply module, a control module and a detection module, wherein the power supply module is electrically connected with a current control module, a switch module and the control module in sequence; the application method of the lightning protection ground wire monitoring system is also included, and the application method comprises the following steps; s1, connecting the ground wire with the detection device; s2, inputting a power supply; s3, carrying out ground wire detection; s4, displaying an alarm; s5, storing data; the current control module is used for adjusting the input current, the detection module is used for detecting the ground wire, the shunt module is used for guiding the current into the ground, and the feedback module is used for feeding back the operation condition of the detection module.
Description
Technical Field
The invention belongs to the technical field of circuit detection, and particularly relates to a lightning protection ground wire monitoring system.
Background
The ground wire is a wire connected to the ground, to the housing or to zero in the electrical system or the electronic device. In general, the earth wire is connected to the casing to prevent the electric shock accident caused by the internal insulation damage of the electric appliance. The ground wire is short for the grounding device. The ground wire is divided into a working ground and a safety ground. The protective grounding adopted for preventing people from electric shock accidents when using electronic equipment such as household appliances and offices is a safety grounding protection wire, and a lightning protection ground wire is needed to be arranged during high-voltage line transmission, so that lightning stroke caused by the high-voltage line during transmission is prevented, a ground wire monitoring system is needed for monitoring, and various ground wire monitoring problems still exist in the market.
Although the novel ground wire detection circuit disclosed in the publication No. CN201720004393.2 has the characteristics of clear structure, diversified functions, good stability and high reliability as a whole, the novel ground wire detection circuit does not solve the problems that the existing lightning protection ground wire monitoring device cannot protect the control module, cannot disperse the lightning current, and cannot feed back the operation state of the detection module in time when detecting, and therefore, a lightning protection ground wire monitoring system and method are provided.
Disclosure of Invention
The present invention is directed to a system and a method for monitoring a lightning protection ground wire, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the device comprises a power supply module, a control module and a detection module, wherein the power supply module is electrically connected with a current control module, the current control module is electrically connected with a grounding module, the current control module is electrically connected with a switch module, the switch module is electrically connected with the control module, the control module is electrically connected with a transmission module, a storage module, an alarm module, a display module, a feedback module and a detection module, the detection module is electrically connected with the feedback module, the detection module is electrically connected with a shunt module, and the shunt module is electrically connected with the grounding module;
the current control module comprises a voltage reduction module, a rectification module, a filtering module, a voltage stabilization module and an input detection module, wherein the voltage reduction module is used for reducing the voltage of the power supply module, the rectification module is used for converting the input alternating current voltage into direct current voltage, the filtering module is used for filtering and removing noise waves in the voltage, the voltage stabilization module is used for stabilizing the numerical value of the input voltage, and the input detection module is used for detecting the safety and the stability of the input circuit;
the detection module comprises a circuit detection module, a voltage detection module, a current detection module and a resistance detection module, wherein the circuit detection module is used for detecting the on-off of a circuit, the voltage detection module is used for detecting the voltage value of the ground wire, the current detection module is used for detecting the current value of the ground wire, and the resistance detection module is used for detecting the resistance value of the ground wire.
Preferably, the power supply module is electrically connected to the voltage reduction module, the voltage reduction module is electrically connected to the rectification module, the rectification module is electrically connected to the filtering module, the filtering module is electrically connected to the voltage stabilization module, and the voltage stabilization module is electrically connected to the switch module.
Preferably, the alarm module adopts an audible and visual alarm, and the audible and visual alarm comprises a warning lamp and a buzzer.
Preferably, the storage modules at least include a group of RAM storage modules and a group of ROM storage modules, respectively, where the RAM storage modules are used to store the information detected by the detection module, and the ROM storage modules are used to store a program body for system operation.
Preferably, the transmission module adopts wireless network transmission, and the wireless network transmission is used for performing wireless remote transmission on the data detected by the control module.
A using method of a lightning protection ground wire monitoring system comprises the following steps;
s1, connecting the ground wire with the detection device, electrically connecting the detection device with the ground wire through a cable, and electrically connecting a cable with the length of at least 40mm with the grounding module on the detection device;
s2, inputting a power supply, electrically connecting the detection device with 220V voltage, and then inputting the voltage to reduce the rectified voltage under the action of the current control module, so that the voltage can supply power to the control module;
s3, ground wire detection is carried out, the control module realizes circuit on-off detection of the ground wire and detection of the resistance of the lightning protection ground wire and the voltage and the current in lightning stroke through the detection module, and the detection module only intercepts certain voltage in detection to carry out detection;
s4, displaying the current and voltage values on the display module when lightning stroke occurs on the lightning protection ground wire, and warning through the alarm module when the lightning protection ground wire is broken or damaged;
and S5, storing data, wherein the control module stores the state of the lightning protection ground wire in a timing manner and carries out wireless remote transmission through the transmission module.
Preferably, when the ground line detection is performed in S3, if the voltage transmitted by the control module is unstable, the feedback module may perform a reverse control adjustment.
Preferably, the transmission module in S5 is a DTD433M wireless communication module, and the DTD433M wireless communication module is provided with RS232 and RS485 interfaces.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the current control module is used for controlling and adjusting the input current, so that the input current can conveniently supply power to the control module, and in order to prevent the input current from causing problems and damage to the control module caused by the input current, the current control module is electrically connected with the grounding module for protecting the stable operation of the control module;
(2) the detection module is electrically connected with the control module and used for detecting the ground wire so that the ground wire can be kept in a normal running state, the shunt module is arranged on the detection module, strong current can be led into the ground through the grounding module, and then the detection module is safely protected, and the feedback module is arranged so that the running condition of the detection module can be fed back constantly.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic structural diagram of a flow control module according to the present invention;
FIG. 3 is a schematic diagram of a detection module according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1-3;
the first embodiment of the invention provides a technical scheme of a lightning protection ground wire monitoring system, which comprises the following steps: the power supply module is electrically connected with a current control module, the current control module is electrically connected with a grounding module, and the current control module can adjust and control the voltage of the power supply module, so that the voltage of the power supply module can be suitable for the control module; the current control module is electrically connected with a switch module, the switch module is electrically connected with a control module, the switch module can control the on-off of voltage, and the control module is used for controlling and adjusting the system; the control module is electrically connected with a transmission module, a storage module, an alarm module, a display module, a feedback module and a detection module, the detection module is electrically connected with the feedback module, the detection module is electrically connected with a shunt module, the shunt module is electrically connected with the grounding module, the feedback module is used for controlling and adjusting the current of the detection module, and the shunt module is used for conducting the current of lightning stroke to the ground when the lightning protection ground wire is struck by lightning;
the current control module comprises a voltage reduction module, a rectification module, a filtering module, a voltage stabilization module and an input detection module, wherein the voltage reduction module is used for reducing the voltage of the power supply module, the rectification module is used for converting the input alternating current voltage into the direct current voltage, the filtering module is used for filtering and removing noise waves in the voltage, the voltage stabilization module is used for stabilizing the numerical value of the input voltage, the input detection module is used for detecting and detecting the safety and the stability of the input circuit, the current control module can control the voltage of the power supply module, so that the alternating current voltage can be converted into the direct current voltage, the voltage reduction processing is carried out on the 220V voltage, and the input detection module can detect the input voltage and prevent the input voltage from damaging the control module;
the detection module comprises a circuit detection module, a voltage detection module, a current detection module and a resistance detection module, wherein the circuit detection module is used for detecting the on-off of a circuit, the voltage detection module is used for detecting the voltage value of a ground wire, the current detection module is used for detecting the current value of the ground wire, the resistance detection module is used for detecting the resistance value of the ground wire, the detection module at the position can stably detect the condition of the ground wire at the position, and the safety detection can be realized no matter whether the ground wire is struck by lightning or not.
In order to stably supply power to the power supply module and prevent the power supply module from damaging the control module, in this embodiment, it is preferable that the power supply module is electrically connected to the voltage reduction module, the voltage reduction module is electrically connected to the rectification module, the rectification module is electrically connected to the filtering module, the filtering module is electrically connected to the voltage stabilization module, and the voltage stabilization module is electrically connected to the switch module.
In order to achieve the stability of the alarm, the worker can be reminded in different manners, in the embodiment, preferably, the alarm module adopts a sound-light alarm, and the sound-light alarm comprises a warning lamp and a buzzer.
In order to enable the stored information to be stored separately, which will not cause confusion of the stored information, or even crash of the system, in this embodiment, it is preferable that the storage modules at least include a group of RAM storage modules and a group of ROM storage modules, respectively, where the RAM storage modules are used to store the information detected by the detection module, and the ROM storage modules are used to store a program body operated by the system.
In order to realize transmission of the detection information and reduce laying of the line, in this embodiment, it is preferable that the transmission module adopts wireless network transmission, and the wireless network transmission is used for performing wireless remote transmission on the data detected by the control module.
The second embodiment is different from the first embodiment in that a using method of the lightning protection ground wire monitoring system is further provided, and the using method comprises the following steps;
s1, connecting the ground wire with the detection device, electrically connecting the detection device with the ground wire through a cable, and electrically connecting a cable with the length of at least 40mm with the grounding module on the detection device;
s2, inputting a power supply, electrically connecting the detection device with 220V voltage, and then inputting the voltage to reduce the rectified voltage under the action of the current control module, so that the voltage can supply power to the control module;
s3, ground wire detection is carried out, the control module realizes circuit on-off detection of the ground wire and detection of the resistance of the lightning protection ground wire and the voltage and the current in lightning stroke through the detection module, and the detection module only intercepts certain voltage in detection to carry out detection;
s4, displaying the current and voltage values on the display module when lightning stroke occurs on the lightning protection ground wire, and warning through the alarm module when the lightning protection ground wire is broken or damaged;
and S5, storing data, wherein the control module stores the state of the lightning protection ground wire in a timing manner and carries out wireless remote transmission through the transmission module.
In order to enable the detection module to operate stably, in this embodiment, it is preferable that, when performing the ground line detection in S3, if the voltage transmitted by the control module is unstable, the feedback module performs reverse control adjustment.
In order to realize stable information transmission, in this embodiment, it is preferable that the transmission module in S5 is a DTD433M wireless communication module, and the DTD433M wireless communication module is provided with RS232 and RS485 interfaces.
The working principle and the using process of the invention are as follows:
the method comprises the following steps that firstly, a ground wire and a detection device are connected, the detection device is electrically connected with the ground wire through a cable, and then a cable with the length of at least 40mm is electrically connected with the detection device through a shunt module and a grounding module;
secondly, inputting a power supply, electrically connecting the detection device with 220V voltage, and then reducing the rectified voltage under the action of the current control module by the input voltage so that the voltage can supply power to the control module;
thirdly, detecting a ground wire, wherein the control module realizes circuit on-off detection of the ground wire and detection of the resistance of the lightning protection ground wire and the voltage and the current in lightning stroke through the detection module, and the detection module only intercepts certain voltage for detection in the detection;
fourthly, alarm display is carried out, the numerical value of current and voltage can be displayed on a display module when lightning stroke occurs on the lightning protection ground wire, and warning is carried out through an alarm module when the lightning protection ground wire is broken or damaged;
and fifthly, storing data, namely storing the state of the lightning protection ground wire by the control module at regular time and carrying out wireless remote transmission through the transmission module.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a lightning protection ground wire monitoring system, includes power module, control module and detection module, its characterized in that: the power supply module is electrically connected with a current control module, the current control module is electrically connected with a grounding module, the current control module is electrically connected with a switch module, the switch module is electrically connected with a control module, the control module is electrically connected with a transmission module, a storage module, an alarm module, a display module, a feedback module and a detection module, the detection module is electrically connected with the feedback module, the detection module is electrically connected with a shunt module, and the shunt module is electrically connected with the grounding module;
the current control module comprises a voltage reduction module, a rectification module, a filtering module, a voltage stabilization module and an input detection module, wherein the voltage reduction module is used for reducing the voltage of the power supply module, the rectification module is used for converting the input alternating current voltage into direct current voltage, the filtering module is used for filtering and removing noise waves in the voltage, the voltage stabilization module is used for stabilizing the numerical value of the input voltage, and the input detection module is used for detecting the safety and the stability of the input circuit;
the detection module comprises a circuit detection module, a voltage detection module, a current detection module and a resistance detection module, wherein the circuit detection module is used for detecting the on-off of a circuit, the voltage detection module is used for detecting the voltage value of the ground wire, the current detection module is used for detecting the current value of the ground wire, and the resistance detection module is used for detecting the resistance value of the ground wire.
2. A lightning protection ground wire monitoring system according to claim 1, characterized in that: the power supply module is electrically connected with the voltage reduction module, the voltage reduction module is electrically connected with the rectification module, the rectification module is electrically connected with the filtering module, the filtering module is electrically connected with the voltage stabilization module, and the voltage stabilization module is electrically connected with the switch module.
3. A lightning protection ground wire monitoring system according to claim 1, characterized in that: the alarm module adopts an audible and visual alarm, and the audible and visual alarm comprises a warning lamp and a buzzer.
4. A lightning protection ground wire monitoring system according to claim 1, characterized in that: the storage modules at least comprise a group of RAM storage modules and a group of ROM storage modules respectively, the RAM storage modules are used for storing the information detected by the detection modules, and the ROM storage modules are used for storing program bodies operated by the system.
5. A lightning protection ground wire monitoring system according to claim 1, characterized in that: the transmission module adopts wireless network transmission, and the wireless network transmission is used for performing wireless remote transmission on the data detected by the control module.
6. A use method of a lightning protection ground wire monitoring system is characterized in that: the using method comprises the following steps;
s1, connecting the ground wire with the detection device, electrically connecting the detection device with the ground wire through a cable, and electrically connecting a cable with the length of at least 40mm with the grounding module on the detection device;
s2, inputting a power supply, electrically connecting the detection device with 220V voltage, and then inputting the voltage to reduce the rectified voltage under the action of the current control module, so that the voltage can supply power to the control module;
s3, ground wire detection is carried out, the control module realizes circuit on-off detection of the ground wire and detection of the resistance of the lightning protection ground wire and the voltage and the current in lightning stroke through the detection module, and the detection module only intercepts certain voltage in detection to carry out detection;
s4, displaying the current and voltage values on the display module when lightning stroke occurs on the lightning protection ground wire, and warning through the alarm module when the lightning protection ground wire is broken or damaged;
and S5, storing data, wherein the control module stores the state of the lightning protection ground wire in a timing manner and carries out wireless remote transmission through the transmission module.
7. The method of using a lightning protection ground wire monitoring system according to claim 6, wherein: in S3, if the voltage transmitted by the control module is unstable during ground line detection, the feedback module may perform reverse control adjustment.
8. The method of using a lightning protection ground wire monitoring system according to claim 6, wherein: the transmission module in the S5 adopts a DTD433M wireless communication module, and the DTD433M wireless communication module is provided with RS232 and RS485 interfaces.
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| CN202010402727.8A CN111551842A (en) | 2020-05-13 | 2020-05-13 | Lightning protection ground wire monitoring system and method |
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| CN202010402727.8A CN111551842A (en) | 2020-05-13 | 2020-05-13 | Lightning protection ground wire monitoring system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113991841A (en) * | 2021-10-21 | 2022-01-28 | 西安信电装备工程中心有限公司 | Frequency-selecting grounding device beside rail |
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Application publication date: 20200818 |