CN110672959A - 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 PDFInfo
- Publication number
- CN110672959A CN110672959A CN201910982768.6A CN201910982768A CN110672959A CN 110672959 A CN110672959 A CN 110672959A CN 201910982768 A CN201910982768 A CN 201910982768A CN 110672959 A CN110672959 A CN 110672959A
- Authority
- CN
- China
- Prior art keywords
- module
- power
- power supply
- power failure
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012806 monitoring device Methods 0.000 title claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 45
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 239000003990 capacitor Substances 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to a single-phase multi-path low-voltage user side power failure monitoring device which comprises a measuring module, a power supply module and a communication module, wherein the measuring module is used for monitoring the power failure state of a multi-path single-phase power supply, the communication module is used for reporting power failure information monitored by the measuring module, and the power supply module provides power for the measuring module and the communication module. The invention can monitor up to 15 single-phase power supplies at the same time, can still maintain normal work under the condition of power failure and can judge and report the power failure state.
Description
Technical Field
The invention relates to the technical field of intelligent power distribution and utilization, in particular to a single-phase multi-path low-voltage user side power failure monitoring device which monitors single-phase multi-path power supply voltage and timely discovers and reports the power failure condition of a user side.
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 monitor a single-phase multi-path low-voltage user side power supply in real time and discover and report the power failure and the recovery of the power supply in time, the invention provides a power failure monitoring device which can monitor and report the power failure and recovery state of a 15-path single-phase power supply, can continue to work for more than 3 minutes through a super capacitor backup power supply after the power supply is lost, ensures that the power failure information is reported reliably, can realize data communication through a 4G network, can be installed and disassembled without power failure, can discover the power failure information of the low-voltage user side in time and arrange timely fault emergency repair, and can count the power supply reliability of the low-voltage user side so as to facilitate examination and comparison.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
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 invention, three groups of metering chips with the model number of ATT7022 are selected, and each group of metering chips 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 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 monitoring device of the invention has the following characteristics:
1. the power failure state of the multi-path single-phase power supply at the user side can be monitored. The invention can monitor the power failure state of up to 15 single-phase power supplies, and is suitable for buildings, residential areas, markets and other occasions with more intensive users.
2. And the method is independent of the network communication deployment situation in the field. By using the 4G communication module, the invention can realize the timely report of the power failure information in all areas covered by the wireless public network, thereby being widely deployed and having no requirement on the network deployment condition of an operation site.
3. After power failure, the equipment can continue to operate and report power failure information. According to the invention, the high-capacity super capacitor is used as a backup power supply, so that the normal operation of 3 minutes after power failure can be realized, and the reliable uploading of power failure information can be ensured.
4. And (5) the installation is carried out without power cut on site. The invention realizes the live installation and disassembly of the equipment through the field pluggable terminal, and does not influence the power supply of users in the process of equipment installation and equipment maintenance.
(III) advantageous effects
The invention has the beneficial effects that: the invention can monitor up to 15 single-phase power supplies at the same time, can still maintain normal work under the condition of power failure and can judge and report the power failure state.
Drawings
FIG. 1 is a schematic diagram of a measurement module of the present invention;
FIG. 2 is a schematic diagram of a power module of the present invention;
fig. 3 is a schematic diagram of a communication module of the present invention.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
The invention provides a single-phase multi-path low-voltage user side power failure monitoring device which comprises a measuring module, a power module and a communication module, wherein the measuring module is used for monitoring the power failure state of a multi-path single-phase power supply, the communication module is used for reporting power failure information monitored by the measuring module, and the power module provides power for the measuring module and the 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 invention, as shown in fig. 1, three groups of metering chips with the model number of ATT7022 are selected, and each group of metering chips with the model number of ATT7022 is connected to 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.
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 monitoring device of the invention has the following characteristics:
1. the power failure state of the multi-path single-phase power supply at the user side can be monitored. The invention can monitor the power failure state of up to 15 single-phase power supplies, and is suitable for buildings, residential areas, markets and other occasions with more intensive users.
2. And the method is independent of the network communication deployment situation in the field. By using the 4G communication module, the invention can realize the timely report of the power failure information in all areas covered by the wireless public network, thereby being widely deployed and having no requirement on the network deployment condition of an operation site.
3. After power failure, the equipment can continue to operate and report power failure information. According to the invention, the high-capacity super capacitor is used as a backup power supply, so that the normal operation of 3 minutes after power failure can be realized, and the reliable uploading of power failure information can be ensured.
4. And (5) the installation is carried out without power cut on site. The invention realizes the live installation and disassembly of the equipment through the field pluggable terminal, and does not influence the power supply of users in the process of equipment installation and equipment maintenance.
While the present invention has been described with reference to the particular embodiments illustrated in the drawings, which are meant to be illustrative only and not limiting, it will be apparent to those of ordinary skill in the art in light of the teachings of the present invention that numerous modifications can be made without departing from the spirit and scope of the invention as defined by the appended claims.
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.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910933917X | 2019-09-29 | ||
| CN201910933917 | 2019-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110672959A true CN110672959A (en) | 2020-01-10 |
Family
ID=69082620
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910982768.6A Pending CN110672959A (en) | 2019-09-29 | 2019-10-16 | Single-phase multichannel low pressure user side power failure monitoring devices |
| CN201921734016.XU Expired - Fee Related CN211293096U (en) | 2019-09-29 | 2019-10-16 | Single-phase multichannel low pressure user side power failure monitoring devices |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921734016.XU Expired - Fee Related CN211293096U (en) | 2019-09-29 | 2019-10-16 | Single-phase multichannel low pressure user side power failure monitoring devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN110672959A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112710891A (en) * | 2020-12-22 | 2021-04-27 | 广东电网有限责任公司广州供电局 | Branch switch stop and recovery monitoring sensor, system and method |
-
2019
- 2019-10-16 CN CN201910982768.6A patent/CN110672959A/en active Pending
- 2019-10-16 CN CN201921734016.XU patent/CN211293096U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112710891A (en) * | 2020-12-22 | 2021-04-27 | 广东电网有限责任公司广州供电局 | Branch switch stop and recovery monitoring sensor, system and method |
| CN112710891B (en) * | 2020-12-22 | 2024-03-26 | 广东电网有限责任公司广州供电局 | Branch switch power-off and power-on monitoring sensor, system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN211293096U (en) | 2020-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209167449U (en) | Telegraph circuit in a kind of power failure applied to HPLC carrier communication module | |
| CN106253395B (en) | The electronic automobile-used Intelligent charging unit of one kind and its application method | |
| CN103312039A (en) | Communication base station power supply control and remote monitoring system based on Beidou satellite | |
| CN101873010A (en) | Intelligent monitoring terminal of electric distribution system | |
| CN101237156B (en) | Realization method for wall-hang energy-saving high-frequency switch DC power system | |
| CN211293096U (en) | Single-phase multichannel low pressure user side power failure monitoring devices | |
| CN101093943A (en) | Power feeding equipment in high voltage / supervltage transmission system | |
| CN204231010U (en) | There is the high frequency switch power supply system that DC measurement, subdivision are independently-powered | |
| CN207491146U (en) | A kind of distribution terminal communication system | |
| CN205029438U (en) | Regional efficiency data acquisition device | |
| CN205283260U (en) | Online monitored control system of power module based on cloud ware | |
| CN206741265U (en) | A kind of data acquisition unit and system for monitoring operation state of generator | |
| CN210427662U (en) | Distribution line loss acquisition module | |
| CN203812997U (en) | Accumulator remote maintenance system | |
| CN109088478B (en) | Remote terminal equipment of distribution transformer | |
| CN211577250U (en) | Intelligent acquisition device for machine room | |
| CN204721367U (en) | Width funtion based on ethernet ip v6 communication protocol is powered concentrator | |
| CN211266589U (en) | Power supply device of distribution network terminal and distribution network terminal | |
| CN211043553U (en) | Platform district electric leakage information feedback alarm | |
| CN202243544U (en) | Station signal acquisition machine cabinet | |
| CN203690936U (en) | Carrier communication composite switch | |
| CN208013346U (en) | A kind of Multifunctional power network acquisition fault treating apparatus | |
| CN208580491U (en) | Electric energy meter system based on bimodulus communication | |
| CN207396698U (en) | Intelligent fire-fighting equipment Power Monitoring Unit | |
| CN207124489U (en) | A kind of Intelligent power distribution system of high RST transmission stability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |