CN211293096U - Single-phase multichannel low pressure user side power failure monitoring devices - Google Patents

Single-phase multichannel low pressure user side power failure monitoring devices Download PDF

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Publication number
CN211293096U
CN211293096U CN201921734016.XU CN201921734016U CN211293096U CN 211293096 U CN211293096 U CN 211293096U CN 201921734016 U CN201921734016 U CN 201921734016U CN 211293096 U CN211293096 U CN 211293096U
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China
Prior art keywords
module
power
power failure
power supply
phase
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Expired - Fee Related
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CN201921734016.XU
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Chinese (zh)
Inventor
李飞
刘肖骢
李东
韩烨锋
孙兵兵
白瑞军
杨钰炜
吕海航
崔彦波
于洪海
樊府颖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bazhou Power Supply Co Of State Grid Xinjiang Electric Power Co ltd
Wuhai Electric Power Bureau Inner Mongolia Power Group Co ltd
Beijing Kedong Electric Power Control System Co Ltd
Original Assignee
Bazhou Power Supply Co Of State Grid Xinjiang Electric Power Co ltd
Wuhai Electric Power Bureau Inner Mongolia Power Group Co ltd
Beijing Kedong Electric Power Control System Co Ltd
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Application filed by Bazhou Power Supply Co Of State Grid Xinjiang Electric Power Co ltd, Wuhai Electric Power Bureau Inner Mongolia Power Group Co ltd, Beijing Kedong Electric Power Control System Co Ltd filed Critical Bazhou Power Supply Co Of State Grid Xinjiang Electric Power Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/38Services specially adapted for particular environments, situations or purposes for collecting sensor information
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The utility model relates to a single-phase multichannel low pressure user side power failure monitoring devices, including measurement module, power module and communication module, measurement module is used for monitoring multichannel single phase power supply's the power failure state, and communication module is used for reporting the power failure information that measurement module monitored, and power module provides the power for measurement module and communication module. The utility model discloses can monitor up to 15 way single-phase power supplies simultaneously, still can maintain normal work and distinguish and report the power failure state under the power failure condition.

Description

Single-phase multichannel low pressure user side power failure monitoring devices
Technical Field
The utility model relates to an intelligence distribution power consumption technical field, more specifically say, relate to a single-phase multichannel low pressure user side power failure monitoring devices, monitor single-phase multichannel supply voltage simultaneously, in time discover and report the user side power failure condition.
Background
At present, the power failure of a low-voltage user side generally depends on the active reporting of a user, the power failure condition cannot be found in time by the method, the rapid and timely first-aid repair is not facilitated, and the power supply reliability of the user side cannot be accurately counted. To solve this problem, the prior art discloses a low-voltage power failure monitoring terminal, which can only monitor a three-phase line and is not suitable for application occasions where a user side is mostly single-phase power supply. The prior art also discloses a user power failure monitoring device and a power supply monitoring device thereof, which adopt a dual-power supply scheme, but a second power supply of the user power failure monitoring device needs to depend on an external storage battery or other power supply devices, and cannot operate independently, and the monitoring of a single-phase multi-path user side power supply is not mentioned.
Disclosure of Invention
Technical problem to be solved
In order to carry out real-time supervision to single-phase multichannel low pressure user side power, in time discover and report when having a power failure and resumeing the power supply, the utility model provides a power failure monitoring devices, it can monitor and report 15 way single phase power supply's the state of stopping the telegram again, can continue to work more than 3 minutes through super capacitor backup power after power supply loses, guarantee the reliable report of power failure information, can realize data communication through the 4G network, can install and dismantle not having a power failure, thereby can in time discover the power failure information of low pressure user side and arrange timely trouble and salvage, and can make statistics of in order to make things convenient for examination and contrast to the power supply reliability of low pressure user side.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include:
the utility model provides a single-phase multichannel low pressure user side power failure monitoring devices, includes measuring module, power module and communication module, measuring module is used for monitoring multichannel single phase power supply's power failure state, communication module is used for reporting the power failure information that measuring module monitored, power module provides the power for measuring module and communication module.
The measuring module comprises a voltage transformer (PT), a metering chip and a single chip Microcomputer (MCU). The external multi-path alternating voltage signal is converted into an isolated weak signal through a voltage transformer, the signal is converted into digital quantity through an analog-to-digital converter built in a metering chip, the single chip microcomputer reads analog quantity values collected by the metering chip through a communication mode of a Serial Peripheral Interface (SPI for short), and effective values of the external multi-path alternating voltage signal can be obtained after range conversion. In the specific application process of the utility model, three groups of measurement chips with the model number of ATT7022 are selected, and the measurement chip of each group of ATT7022 is accessed with 5 paths of alternating voltage signals; the external U1-U15 are 15 paths of alternating voltage signals, the signals are converted into isolated weak signals after PT, the signals are converted into digital quantity through an analog-to-digital converter built in the ATT7022, and the MCU reads analog quantity values collected by the ATT7022 in an SPI communication mode and obtains effective values of the external 1-15 paths of alternating voltage signals after range conversion.
The power supply module comprises an AC/DC module, a first super capacitor, a change-over switch, a DC/DC module with the output voltage of 3.3V and a DC/DC module with the output voltage of 4.2V. The AC/DC module realizes the conversion from an external 220V alternating current power supply to a 5V direct current power supply; the first super capacitor is used for providing power for the device to continue to operate when the external power supply is lost; when the external normal power supply is realized by the change-over switch, the system power supply is provided by the external power supply, and the seamless input of the super capacitor is realized under the condition that the external power supply is powered off; the DC/DC module with the output voltage of 3.3V is used for providing a working power supply for the singlechip, the measuring module and other modules; the DC/DC module with the output voltage of 4.2V is used for supplying power for the 4G communication module.
The communication module comprises a second super capacitor and a 4G communication module. The second super capacitor is used for providing peak power for the 4G communication module, and the situation that the DC/DC module with the output voltage of 4.2V cannot provide instantaneous large current to influence the normal work of the 4G communication module under the condition of peak power consumption of the 4G module is prevented. The 4G communication module is communicated with the single chip microcomputer in a Universal Asynchronous Receiver Transmitter (UART) communication mode and used for interacting communication messages with the single chip microcomputer, and the 4G communication module is connected with the base station through a wireless public network and finally connected to the internet or an internal APN private network.
The utility model discloses a monitoring devices has following characteristics:
1. the power failure state of the multi-path single-phase power supply at the user side can be monitored. The utility model discloses can carry out the monitoring of the state that has a power failure to reaching 15 way single-phase power supply as much, be applicable to occasions such as user's building, residential area, market denser.
2. And the method is independent of the network communication deployment situation in the field. The utility model discloses an use 4G communication module, all can realize the timely report of power failure information in the area that all wireless public networks covered to but the wide arrangement, there is not the requirement to the network deployment condition of operation scene.
3. After power failure, the equipment can continue to operate and report power failure information. The utility model discloses an use large capacity ultracapacitor system as backup source, can realize the normal operating that reaches 3 minutes after having a power failure, can guarantee to have a power failure information and reliably go up and send.
4. And (5) the installation is carried out without power cut on site. The utility model discloses a but live installation and the dismantlement of on-spot plug terminal realization equipment are carrying out equipment fixing and equipment maintenance in-process and are not causing the influence to user's power supply.
(III) advantageous effects
The utility model has the advantages that: the utility model discloses can monitor up to 15 way single-phase power supplies simultaneously, still can maintain normal work and distinguish and report the power failure state under the power failure condition.
Drawings
Fig. 1 is a schematic diagram of a measurement module according to the present invention;
fig. 2 is a schematic diagram of a power module according to the present invention;
fig. 3 is a schematic diagram of a communication module according to the present invention.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
The utility model provides a single-phase multichannel low pressure user side power failure monitoring devices, including measurement module, power module and communication module, measurement module is used for monitoring multichannel single phase power supply's the power failure state, communication module is used for reporting the power failure information that measurement module monitored, power module provides the power for measurement module and communication module.
The measuring module comprises a voltage transformer (PT), a metering chip and a single chip Microcomputer (MCU). The external multi-path alternating voltage signal is converted into an isolated weak signal through a voltage transformer, the signal is converted into digital quantity through an analog-to-digital converter built in a metering chip, the single chip microcomputer reads analog quantity values collected by the metering chip through a communication mode of a Serial Peripheral Interface (SPI for short), and effective values of the external multi-path alternating voltage signal can be obtained after range conversion. In the embodiment of the present invention, as shown in fig. 1, three sets of measurement chips with the type of ATT7022 are selected, and the measurement chip of each set of ATT7022 is connected to 5 ac voltage signals; the external U1-U15 are 15 paths of alternating voltage signals, the signals are converted into isolated weak signals after PT, the signals are converted into digital quantity through an analog-to-digital converter built in the ATT7022, and the MCU reads analog quantity values collected by the ATT7022 in an SPI communication mode and obtains effective values of the external 1-15 paths of alternating voltage signals after range conversion.
As shown in fig. 2, the power module includes an AC/DC module, a first super capacitor, a switch, a DC/DC module with an output voltage of 3.3V, and a DC/DC module with an output voltage of 4.2V. The AC/DC module realizes the conversion from an external 220V alternating current power supply to a 5V direct current power supply; the first super capacitor is used for providing power for the device to continue to operate when the external power supply is lost; when the external normal power supply is realized by the change-over switch, the system power supply is provided by the external power supply, and the seamless input of the super capacitor is realized under the condition that the external power supply is powered off; the DC/DC module with the output voltage of 3.3V is used for providing a working power supply for the singlechip, the measuring module and other modules; the DC/DC module with the output voltage of 4.2V is used for supplying power for the 4G communication module.
As shown in fig. 3, the communication module includes a second supercapacitor, 4G communication module. The second super capacitor is used for providing peak power for the 4G communication module, and the situation that the DC/DC module with the output voltage of 4.2V cannot provide instantaneous large current to influence the normal work of the 4G communication module under the condition of peak power consumption of the 4G module is prevented. The 4G communication module is communicated with the singlechip by adopting a communication mode of a Universal Asynchronous Receiver/Transmitter (UART) for short, is used for interacting communication messages with the singlechip, and is connected with the base station through a wireless public network so as to be finally connected to the Internet or an internal APN private network.
The utility model discloses a monitoring devices has following characteristics:
1. the power failure state of the multi-path single-phase power supply at the user side can be monitored. The utility model discloses can carry out the monitoring of the state that has a power failure to reaching 15 way single-phase power supply as much, be applicable to occasions such as user's building, residential area, market denser.
2. And the method is independent of the network communication deployment situation in the field. The utility model discloses an use 4G communication module, all can realize the timely report of power failure information in the area that all wireless public networks covered to but the wide arrangement, there is not the requirement to the network deployment condition of operation scene.
3. After power failure, the equipment can continue to operate and report power failure information. The utility model discloses an use large capacity ultracapacitor system as backup source, can realize the normal operating that reaches 3 minutes after having a power failure, can guarantee to have a power failure information and reliably go up and send.
4. And (5) the installation is carried out without power cut on site. The utility model discloses a but live installation and the dismantlement of on-spot plug terminal realization equipment are carrying out equipment fixing and equipment maintenance in-process and are not causing the influence to user's power supply.
The drawings illustrate the embodiments of the present invention, but the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and those skilled in the art can make various modifications without departing from the spirit and scope of the present invention.

Claims (5)

1. The utility model provides a single-phase multichannel low pressure user side power failure monitoring devices which characterized in that, includes measuring module, power module and communication module, measuring module is used for monitoring multichannel single phase power supply's power failure state, communication module is used for reporting the power failure information that measuring module monitored, power module provides the power for measuring module and communication module.
2. The single-phase multi-path low-voltage user side power failure monitoring device as claimed in claim 1, wherein: the measuring module comprises a voltage transformer, a metering chip and a single chip microcomputer, alternating voltage signals of the multi-path single-phase power supply are converted into isolated weak signals through the voltage transformer, the isolated weak signals are converted into digital quantity through an analog-to-digital converter arranged in the metering chip, the single chip microcomputer reads analog quantity values collected by the metering chip in a communication mode of a serial peripheral interface, and effective values of the alternating voltage signals of the multi-path single-phase power supply are obtained after range conversion.
3. The single-phase multi-path low-voltage user side power failure monitoring device as claimed in claim 2, wherein: the measuring module comprises three groups of measuring chips, and each group of measuring chips is connected with the alternating voltage signals of five single-phase power supplies.
4. The single-phase multi-path low-voltage user side power failure monitoring device as claimed in claim 1, wherein: the power module comprises an AC/DC module, a first super capacitor, a change-over switch, a DC/DC module with the output voltage of 3.3V and a DC/DC module with the output voltage of 4.2V, wherein the AC/DC module is used for converting an external 220V alternating current power supply into a 5V direct current power supply, the output ends of the first super capacitor and the AC/DC module are connected with the input end of the change-over switch, the output end of the change-over switch is respectively connected with the DC/DC module with the output voltage of 3.3V and the DC/DC module with the output voltage of 4.2V, the DC/DC module with the output voltage of 3.3V is used for providing a working power supply for the measuring module, and the DC/DC module with the output voltage of 4.2V is used for providing a working power supply for the communication module; the change-over switch selects the external power supply to supply power when the external 220V alternating current power supply normally supplies power, and the change-over switch selects the first super capacitor to supply power when the external 220V alternating current power supply is powered off.
5. The single-phase multi-path low-voltage user side power failure monitoring device as claimed in claim 1, wherein: the communication module comprises a second super capacitor and a 4G communication module; the 4G communication module is communicated with the measurement module in a communication mode of a universal asynchronous receiving and transmitting transmitter, and is connected with the base station through a wireless public network; and when the power module can not provide instantaneous large current under the condition of peak power consumption of the 4G module, the second super capacitor provides peak power for the 4G communication module.
CN201921734016.XU 2019-09-29 2019-10-16 Single-phase multichannel low pressure user side power failure monitoring devices Expired - Fee Related CN211293096U (en)

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CN112018874A (en) * 2020-08-25 2020-12-01 北京科东电力控制系统有限责任公司 Dual-power supply monitoring device and system
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