CN212483816U - High-sensitivity electric leakage detection system - Google Patents
High-sensitivity electric leakage detection system Download PDFInfo
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- CN212483816U CN212483816U CN202022350183.3U CN202022350183U CN212483816U CN 212483816 U CN212483816 U CN 212483816U CN 202022350183 U CN202022350183 U CN 202022350183U CN 212483816 U CN212483816 U CN 212483816U
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Abstract
The utility model belongs to the technical field of the wisdom is with the electricity, in particular to high sensitivity electric leakage detection system. A high-sensitivity electric leakage detection system comprises a high-precision current transformer, a current-to-voltage module and the like; the output end of the high-precision current transformer is electrically connected with the input end of the current-to-voltage module, the output end of the current-to-voltage module is in signal connection with the input end of the single chip microcomputer, the output end of the single chip microcomputer is in signal connection with the communication module, the power supply module is electrically connected with the single chip microcomputer, and the communication module is in signal connection with the data transceiver module. The utility model discloses a high accuracy current transformer gathers the leakage current, carries out ADC conversion processing through 32 position ARM singlechips, at last through filtering calculation, can the real-time detection branch road the electric leakage condition, has improved and has detected the flexibility, has made things convenient for fortune dimension personnel accurate location to trigger earth leakage protection and is which branch road, and has reached and can large-scale switch board multiloop detect the development simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the wisdom is with the electricity, in particular to high sensitivity electric leakage detection system.
Background
The conventional equipment is generally a little function on the electric fire combination detector, can't satisfy large-scale switch board multiloop detection demand, and single circuit electric leakage detection among the prior art can only detect total electric leakage, can't detect branch road electric leakage, consequently need urgent research and development a high sensitivity electric leakage detection system that can large-scale switch board multiloop detect development simultaneously.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome that conventional equipment is a little function on the electrical fire combination detector generally, can't satisfy large-scale switch board multiloop and detect the demand, and single circuit leakage detection among the prior art can only detect total electric leakage, can't detect the shortcoming of branch road electric leakage, the utility model provides a can large-scale switch board multiloop detect the high sensitivity electric leakage detection system of development simultaneously.
(II) technical scheme
The utility model discloses a following technical scheme realizes: the utility model provides a high-sensitivity electric leakage detection system, which comprises a high-precision current transformer, a current-to-voltage module, a singlechip, a power module, a communication module, a data transceiver module and a network cloud; the output end of the high-precision current transformer is electrically connected with the input end of the current-to-voltage module, the output end of the current-to-voltage module is in signal connection with the input end of the single chip microcomputer, the output end of the single chip microcomputer is in signal connection with the communication module, the power supply module is electrically connected with the single chip microcomputer, the communication module is in signal connection with the data receiving and sending module, and the data receiving and sending module is in signal connection with the network cloud;
the high-precision current transformer is used for inputting leakage current;
the current-to-voltage conversion module is used for rectifying leakage current and converting the leakage current into voltage;
the single chip microcomputer is used for collecting voltage and converting the voltage into signal data to carry out filtering cleaning, filtering processing, data judgment, state judgment, fault judgment and data storage;
the communication module is used for converting the signal data processed by the singlechip into communication signals;
the data transceiving module is used for sending the communication signal to the network cloud;
and the network cloud is used for data query and parameter setting of the communication signals.
Further, the high-precision current transformer is a zero sequence transformer.
Further, the current-to-voltage module is provided with a rectifier bridge and a current-to-voltage circuit; the rectifier bridge is connected with the current-to-voltage circuit.
Furthermore, the single chip microcomputer is composed of an acquisition circuit, a master control MCU and an EEPROM, and the single chip microcomputer is a 32-bit ARM single chip microcomputer.
Furthermore, the single chip microcomputer is composed of an acquisition circuit, a master control MCU and an EEPROM, and the single chip microcomputer is a 32-bit ARM single chip microcomputer.
Further, the network cloud is upper computer software.
(III) advantageous effects
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses a high accuracy current transformer gathers the leakage current, carries out ADC conversion processing through 32 position ARM singlechips, at last through filtering calculation, can the real-time detection branch road the electric leakage condition, has improved and has detected the flexibility, has made things convenient for fortune dimension personnel accurate location to trigger earth leakage protection and is which branch road, and has reached and can large-scale switch board multiloop detect the development simultaneously.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is the structure schematic diagram of the high-sensitivity electric leakage detection system of the present invention.
Fig. 2 is a flow chart of the high-sensitivity electric leakage detection system of the present invention.
Fig. 3 is the current-to-voltage modular unit diagram of the high-sensitivity electric leakage detection system of the present invention.
Fig. 4 is the single chip unit diagram of the high sensitivity electric leakage detecting system of the present invention.
Fig. 5 is the power module circuit diagram of the high-sensitivity electric leakage detection system of the present invention.
Fig. 6 is the communication module unit diagram of the high-sensitivity electric leakage detection system of the present invention.
Fig. 7 is the utility model discloses high sensitivity electric leakage detection system's singlechip peripheral circuit diagram.
Fig. 8 is the unit diagram for selecting the baud rate of the single chip microcomputer of the high-sensitivity electric leakage detection system of the present invention.
Fig. 9 is the utility model discloses high sensitivity electric leakage detection system's singlechip data storage unit map.
Detailed Description
In the technical scheme:
in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A high-sensitivity electric leakage detection system is shown in figures 1-9 and comprises a high-precision current transformer, a current-to-voltage conversion module, a single chip microcomputer, a power supply module, a communication module, a data transceiving module and a network cloud end; the output end of the high-precision current transformer is electrically connected with the input end of the current-to-voltage module, the output end of the current-to-voltage module is in signal connection with the input end of the single chip microcomputer, the output end of the single chip microcomputer is in signal connection with the communication module, the power supply module is electrically connected with the single chip microcomputer, the communication module is in signal connection with the data receiving and sending module, and the data receiving and sending module is in signal connection with the network cloud;
the high-precision current transformer is used for inputting leakage current;
the current-to-voltage conversion module is used for rectifying leakage current and converting the leakage current into voltage;
the single chip microcomputer is used for collecting voltage and converting the voltage into signal data to carry out filtering cleaning, filtering processing, data judgment, state judgment, fault judgment and data storage;
the communication module is used for converting the signal data processed by the singlechip into communication signals;
the data transceiving module is used for sending the communication signal to the network cloud;
the network cloud is used for data query and parameter setting of communication signals;
the high-precision current transformer is a zero sequence transformer;
the current-to-voltage conversion module is provided with a rectifier bridge and a current-to-voltage conversion circuit; the rectifier bridge is connected with the current-to-voltage circuit;
the single chip microcomputer consists of an acquisition circuit, a master control MCU and an EEPROM, and is a 32-bit ARM single chip microcomputer;
the single chip microcomputer consists of an acquisition circuit, a master control MCU and an EEPROM, and is a 32-bit ARM single chip microcomputer;
the network cloud is upper computer software;
the detection method is as follows; the high-precision current transformer is connected with leakage current, the leakage current of the high-precision current transformer is input into the current-to-voltage module, the current-to-voltage module conducts rectification on the leakage current and conducts current-to-voltage circuit conversion, the micro-voltage is converted into micro-voltage, the micro-voltage is conducted on the single chip microcomputer, filtering cleaning and data judgment are conducted, the single chip microcomputer stores default parameters and modified parameters, and finally, relevant data are obtained and modified through the communication module and the data receiving and sending module through the network cloud.
The following table is data which is read and written by a register of the singlechip microcomputer and used for the singlechip microcomputer to acquire a signal of certain leakage current;
the utility model discloses a high accuracy current transformer gathers the leakage current, carries out ADC conversion processing through 32 position ARM singlechips, at last through filtering calculation, can the real-time detection branch road the electric leakage condition, has improved and has detected the flexibility, has made things convenient for fortune dimension personnel accurate location to trigger earth leakage protection and is which branch road, and has reached and can large-scale switch board multiloop detect the development simultaneously.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A high sensitivity electrical leakage detection system, characterized by: the system comprises a high-precision current transformer, a current-to-voltage module, a single chip microcomputer, a power supply module, a communication module, a data transceiving module and a network cloud; the output end of the high-precision current transformer is electrically connected with the input end of the current-to-voltage module, the output end of the current-to-voltage module is in signal connection with the input end of the single chip microcomputer, the output end of the single chip microcomputer is in signal connection with the communication module, the power supply module is electrically connected with the single chip microcomputer, the communication module is in signal connection with the data receiving and sending module, and the data receiving and sending module is in signal connection with the network cloud;
the high-precision current transformer is used for inputting leakage current;
the current-to-voltage conversion module is used for rectifying leakage current and converting the leakage current into voltage;
the single chip microcomputer is used for collecting voltage and converting the voltage into signal data to carry out filtering cleaning, filtering processing, data judgment, state judgment, fault judgment and data storage;
the communication module is used for converting the signal data processed by the singlechip into communication signals;
the data transceiving module is used for sending the communication signal to the network cloud;
and the network cloud is used for data query and parameter setting of the communication signals.
2. A high-sensitivity electrical leakage detection system according to claim 1, wherein: the high-precision current transformer is a zero sequence transformer.
3. A high-sensitivity electrical leakage detection system according to claim 1, wherein: the current-to-voltage conversion module is provided with a rectifier bridge and a current-to-voltage conversion circuit; the rectifier bridge is connected with the current-to-voltage circuit.
4. A high-sensitivity electrical leakage detection system according to claim 1, wherein: the single chip microcomputer is composed of an acquisition circuit, a master control MCU and an EEPROM, and is a 32-bit ARM single chip microcomputer.
5. A high-sensitivity electrical leakage detection system according to claim 1, wherein: the communication module is an RS485 communication chip.
6. A high-sensitivity electrical leakage detection system according to claim 1, wherein: the network cloud is upper computer software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022350183.3U CN212483816U (en) | 2020-10-21 | 2020-10-21 | High-sensitivity electric leakage detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022350183.3U CN212483816U (en) | 2020-10-21 | 2020-10-21 | High-sensitivity electric leakage detection system |
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| Publication Number | Publication Date |
|---|---|
| CN212483816U true CN212483816U (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022350183.3U Active CN212483816U (en) | 2020-10-21 | 2020-10-21 | High-sensitivity electric leakage detection system |
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| CN (1) | CN212483816U (en) |
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- 2020-10-21 CN CN202022350183.3U patent/CN212483816U/en active Active
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Address after: 362000 no.d603, d605, huachuangyuan, sports street, Huada street, Fengze District, Quanzhou City, Fujian Province Patentee after: Fujian Ruize Hengchuang Internet of Things Technology Co.,Ltd. Address before: 362000 no.d603, d605, huachuangyuan, sports street, Huada street, Fengze District, Quanzhou City, Fujian Province Patentee before: Quanzhou Ruize HENGCHUANG Internet of things Technology Co.,Ltd. |
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