CN110702967A - Intelligent power utilization online monitoring system - Google Patents

Intelligent power utilization online monitoring system Download PDF

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Publication number
CN110702967A
CN110702967A CN201911005385.XA CN201911005385A CN110702967A CN 110702967 A CN110702967 A CN 110702967A CN 201911005385 A CN201911005385 A CN 201911005385A CN 110702967 A CN110702967 A CN 110702967A
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CN
China
Prior art keywords
data
power
real
microprocessor
wireless
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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
Application number
CN201911005385.XA
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Chinese (zh)
Inventor
黄育明
欧建苗
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Fujian Front Crown Technology Co Ltd
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Fujian Front Crown Technology Co Ltd
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Application filed by Fujian Front Crown Technology Co Ltd filed Critical Fujian Front Crown Technology Co Ltd
Priority to CN201911005385.XA priority Critical patent/CN110702967A/en
Publication of CN110702967A publication Critical patent/CN110702967A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry
    • G01J5/0096Radiation pyrometry for measuring wires, electrical contacts or electronic systems
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00Arrangements for measuring electric power or power factor
    • G01R21/006Measuring power factor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/10Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into a train of pulses, which are then counted, i.e. converting the signal into a square wave
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

Abstract

The invention relates to the technical field of power utilization safety, in particular to an intelligent power utilization online monitoring system which comprises an intelligent power utilization cloud platform, wireless gateway equipment, a plurality of ad hoc network wireless transmission equipment and a plurality of power data acquisition terminal equipment, wherein the intelligent power utilization cloud platform is connected with the wireless gateway equipment through a network; the power data acquisition terminal equipment is used for acquiring real-time power utilization data, the real-time power utilization data comprise real-time voltage data, real-time current data, real-time voltage frequency data, power factor data, power data and temperature data, and the ad hoc network wireless transmission equipment mutually form a wireless network and are connected with an intelligent power utilization cloud platform through wireless gateway equipment; and each electric power data acquisition terminal device is connected with a wireless network. This intelligence power consumption safety coefficient can carry out real time monitoring to power consumption condition and power consumption safety to show and on-line monitoring on line through wisdom power consumption cloud platform.

Description

Intelligent power utilization online monitoring system
Technical Field
The invention relates to the technical field of power utilization safety, in particular to an intelligent power utilization online monitoring system.
Background
With the rapid development of cities, high-rise buildings like bamboo shoots in spring after rain are pulled out of the ground quickly. Residential areas, industrial parks, software parks, office buildings and other power utilization areas in cities are concentrated, and special power distribution rooms are generally arranged and managed by special power departments. Generally, each user residence and office place is only provided with an electricity meter box, and a householder manages the electricity meter box by himself, but the general householder lacks electricity knowledge, has multiple potential safety hazards, is complex in electricity utilization condition, frequently occurs in electrical fire accidents, and needs effective electricity utilization safety management.
Disclosure of Invention
Therefore, in order to solve the above problems, the present invention provides an intelligent power consumption safety system capable of monitoring power consumption conditions and power consumption safety in real time.
In order to achieve the purpose, the invention adopts the following technical scheme: an intelligent power utilization online monitoring system comprises an intelligent power utilization cloud platform, wireless gateway equipment, a plurality of ad hoc network wireless transmission equipment and a plurality of power data acquisition terminal equipment; the power data acquisition terminal equipment is used for acquiring real-time power utilization data, and the real-time power utilization data comprises real-time voltage data, real-time current data, real-time voltage frequency data, power factor data, power data and temperature data;
the wireless networking is formed among the ad hoc network wireless transmission devices, and the ad hoc network wireless transmission devices are connected with the intelligent power utilization cloud platform through wireless gateway equipment; and each electric power data acquisition terminal device is connected with a wireless network.
Furthermore, each electric power data acquisition terminal device comprises a microprocessor, a power supply module, a wireless communication module, an electronic dog module, a voltage isolation detection circuit, a first operational amplifier, a first zero-crossing comparator, a current isolation detection circuit, a second operational amplifier, a second zero-crossing comparator, an AND gate circuit, an infrared temperature sensor and a display, wherein the power supply module is electrically connected with a power end of the microprocessor, the electronic dog module is electrically connected with the microprocessor, the voltage isolation detection circuit is connected with the microprocessor through the first operational amplifier and the first zero-crossing comparator in sequence, the current isolation detection circuit is connected with the microprocessor, the current isolation detection circuit is connected with the second zero-crossing comparator through the second operational amplifier, and the second zero-crossing comparator is connected with the microprocessor, the second zero-crossing comparator is connected with an AND gate circuit, the AND gate circuit is connected with a counter port of the microprocessor, the infrared temperature sensor and the display are respectively and electrically connected with the microprocessor, the wireless communication module is in communication connection with the microprocessor, and the wireless communication module is connected with a wireless network.
Further, the wireless gateway device adopts a data transmission unit DTU, and the data transmission unit DTU adopts an MQTT communication protocol.
Furthermore, the wireless communication module adopts a Wi-fi module.
Further, the ad hoc network wireless transmission device adopts MESH intelligent ad hoc network digital wireless transmission device ST5801 GB-M.
By adopting the technical scheme, the invention has the beneficial effects that: this intelligent power consumption safety coefficient is used for gathering real-time power consumption data through electric power data acquisition terminal equipment, real-time power consumption data includes real-time voltage data, real-time current data, real-time voltage frequency data, power factor data, power data, and electric power data acquisition terminal equipment loops through wireless network deployment with real-time power consumption data, and wireless gateway equipment transmits for wisdom power consumption cloud platform and carries out online show and on-line monitoring, and the mode through wireless network deployment reduces the wiring, lays and maintains the convenience to signal transmission is stable. Furthermore, the power data acquisition terminal equipment detects a line detection voltage signal through a voltage isolation detection circuit and transmits the line detection voltage signal to the microprocessor, and the voltage isolation detection circuit detects that the line voltage signal converts a sine wave voltage signal into a same-phase square wave voltage signal with the same frequency through a first operational amplifier and a first zero-crossing comparator; the current isolation detection circuit detects a line detection current signal and transmits the line detection current signal to the microprocessor, and the current isolation detection circuit detects a line voltage signal and converts a sine wave current signal into a same-phase square wave current signal with the same frequency through a second operational amplifier and a second zero-crossing comparator; if and only when the square wave current signal is at a high level, the AND gate circuit is conducted, the microprocessor 40 is provided with a counter, the microprocessor 40 calculates the counter value T1 within 1min to obtain real-time current frequency data T1, and the time interval T between adjacent current wave high levels is 60/T1; setting half-period time Ti of the current signal, starting an internal counter to count pulses of the time-base signal, calculating a phase difference angle phi to be 180t/Ti, detecting the high and low levels of the current wave, if the phase difference angle phi is the high level, the current lags behind the voltage, and the power factor takes a plus sign, otherwise, a minus sign; the power factor value is obtained through a table look-up procedure.
Drawings
FIG. 1 is a block diagram of the overall architecture of the present invention;
fig. 2 is a circuit connection block diagram of the power data acquisition terminal device of the present invention.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1 and fig. 2, the present embodiment provides an intelligent power consumption online monitoring system, which includes an intelligent power consumption cloud platform 1, a wireless gateway device 2, a plurality of ad hoc network wireless transmission devices 3, and a plurality of power data acquisition terminal devices 4. In this embodiment, the wireless gateway device 2 employs a data transmission unit DTU, and the data transmission unit DTU employs an MQTT communication protocol. The ad hoc network wireless transmission equipment 3 adopts MESH intelligent ad hoc network digital wireless transmission equipment with the product model number ST5801 GB-M.
The ad hoc network wireless transmission devices 3 mutually form a wireless network and are connected with the intelligent power utilization cloud platform 1 through wireless gateway equipment; in this embodiment, wisdom power consumption cloud platform 1 adopts current wisdom power consumption cloud platform, like the intelligent power distribution system of ya lu science and technology limited development, wisdom power consumption cloud platform is used for carrying out online show and on-line monitoring to real-time voltage data, real-time current data, real-time voltage frequency data, power factor data, power data and the temperature data of electric power data acquisition terminal equipment collection, and this intelligence power consumption on-line monitoring system does not relate to wisdom power consumption cloud platform's computer program and improves.
Each of the power data acquisition terminal devices includes a microprocessor 40, a power module 41, a wireless communication module 42, an electronic dog module 43, a voltage isolation detection circuit 44, a first operational amplifier 45, a first zero-crossing comparator 46, a current isolation detection circuit 47, a second operational amplifier 48, a second zero-crossing comparator 49, an and gate circuit 50, an infrared temperature sensor 51, and a display 52. In this embodiment, the microprocessor 40 is an MCS-51 single chip microcomputer, the wireless communication module 42 is a Wi-fi module, the voltage isolation detection circuit 44 is a voltage sensor, the current isolation detection circuit 47 is a current sensor, and the first operational amplifier 45, the first zero-crossing comparator 46, the second operational amplifier 48, the second zero-crossing comparator 49, and the and circuit 50 are all existing circuit modules.
The power module 41 is electrically connected with a power end of the microprocessor 40, and the power module 41 supplies power to the processor 40. The electronic dog module 43 is electrically connected with the microprocessor 40, and the electronic dog module 43 is used for preventing the microprocessor 40 from crashing. The voltage isolation detection circuit 44 is connected to the microprocessor 40, and the voltage isolation detection circuit 44 detects real-time line voltage data and transmits the line voltage to the microprocessor 40. The voltage isolation detection circuit 44 is connected to the microprocessor 40 sequentially through the first operational amplifier 45 and the first zero-crossing comparator 46, and the voltage isolation detection circuit 44 detects that the line voltage signal is converted into a same-phase square wave voltage signal with the same frequency through the first operational amplifier 45 and the first zero-crossing comparator 46 and then is transmitted to the microprocessor 40. The galvanic isolation detection circuit 47 is connected to the microprocessor 40, the galvanic isolation detection circuit 47 detects real-time line current data and transmits line current to the microprocessor 40, and the galvanic isolation detection circuit 47 detects line current signals, and converts sine wave voltage signals into same-phase same-frequency square wave current signals through the second operational amplifier 48 and the second zero-crossing comparator 49 and transmits the same-phase same-frequency square wave current signals to the microprocessor 40. The microprocessor 40 calculates power data from the received real-time voltage data and real-time current data.
The second zero comparator 49 is connected with an and circuit 50, the and circuit 50 is connected with a counter port of the microprocessor 40, the and circuit 50 is conducted if and only if the square wave current signal is at a high level, the microprocessor 40(MCS-51 single chip microcomputer) is provided with a counter, the microprocessor 40 calculates a counter value T1 within 1min to obtain real-time current frequency data T1, and a time interval T between adjacent current wave high levels is 60/T1; setting half-period time Ti of a current signal under normal conditions, starting an internal counter to count pulses of a time-base signal, calculating a phase difference angle phi to be 180t/Ti, detecting the high and low levels of a current wave, if the phase difference angle phi is the high level, the current lags behind the voltage, and the power factor takes a plus sign, otherwise, takes a minus sign; the power factor value is obtained by a table look-up procedure (which is prior art and is not described in detail). The infrared temperature sensor 51 is electrically connected with the microprocessor 40, and the infrared temperature sensor 51 is used for detecting line temperature data and transmitting the line temperature data to the microprocessor 40. The display displays real-time voltage data, real-time current data, real-time voltage frequency data, power factor data and power data which are acquired by the power data acquisition terminal equipment.
This intelligent power consumption safety coefficient is used for gathering real-time power consumption data through power data acquisition terminal equipment 4, real-time power consumption data includes real-time voltage data, real-time current data, real-time voltage frequency data, power factor data, power data acquisition terminal equipment loops through wireless network deployment with real-time power consumption data, wireless gateway equipment 2 transmits for wisdom power consumption cloud platform 1 and carries out online show and on-line monitoring, reduces the wiring through the mode of wireless network deployment, lays and maintains the convenience to signal transmission is stable.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. The utility model provides an online monitored control system of intelligence power consumption which characterized in that: the system comprises an intelligent power utilization cloud platform, wireless gateway equipment, a plurality of ad hoc network wireless transmission equipment and a plurality of power data acquisition terminal equipment; the power data acquisition terminal equipment is used for acquiring real-time power utilization data, and the real-time power utilization data comprises real-time voltage data, real-time current data, real-time voltage frequency data, power factor data, power data and temperature data;
the wireless networking is formed among the ad hoc network wireless transmission devices, and the ad hoc network wireless transmission devices are connected with the intelligent power utilization cloud platform through wireless gateway equipment; and each electric power data acquisition terminal device is connected with a wireless network.
2. The intelligent online electricity utilization monitoring system according to claim 1, wherein: each electric power data acquisition terminal device comprises a microprocessor, a power supply module, a wireless communication module, a dongle module, a voltage isolation detection circuit, a first operational amplifier, a first zero-crossing comparator, a current isolation detection circuit, a second operational amplifier, a second zero-crossing comparator, an AND gate circuit, an infrared temperature sensor and a display, wherein the power supply module is electrically connected with the power end of the microprocessor, the dongle module is electrically connected with the microprocessor, the voltage isolation detection circuit is connected with the microprocessor through the first operational amplifier and the first zero-crossing comparator in sequence, the current isolation detection circuit is connected with the microprocessor, the current isolation detection circuit is connected with the second zero-crossing comparator through the second operational amplifier, the second zero-crossing comparator is connected with the microprocessor, and the second zero-crossing comparator is connected with the AND gate circuit, the AND gate circuit is connected with a counter port of the microprocessor, the infrared temperature sensor and the display are respectively and electrically connected with the microprocessor, the wireless communication module is in communication connection with the microprocessor, and the wireless communication module is connected with a wireless network.
3. The intelligent online electricity utilization monitoring system according to claim 2, wherein: the wireless gateway equipment adopts a data transmission unit DTU, and the data transmission unit DTU adopts an MQTT communication protocol.
4. The intelligent online electricity utilization monitoring system according to claim 3, wherein: the wireless communication module adopts a Wi-fi module.
5. The intelligent online electricity utilization monitoring system according to claim 3, wherein: the ad hoc network wireless transmission equipment adopts MESH intelligent ad hoc network digital wireless transmission equipment ST5801 GB-M.
CN201911005385.XA 2019-10-22 2019-10-22 Intelligent power utilization online monitoring system Pending CN110702967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911005385.XA CN110702967A (en) 2019-10-22 2019-10-22 Intelligent power utilization online monitoring system

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Application Number Priority Date Filing Date Title
CN201911005385.XA CN110702967A (en) 2019-10-22 2019-10-22 Intelligent power utilization online monitoring system

Publications (1)

Publication Number Publication Date
CN110702967A true CN110702967A (en) 2020-01-17

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201322772Y (en) * 2008-12-11 2009-10-07 淮安信息职业技术学院 Automatic power factor recorder
CN202085196U (en) * 2011-06-01 2011-12-21 安徽南瑞继远软件有限公司 Household intelligent power utilization monitoring system
CN104282134A (en) * 2014-10-28 2015-01-14 哈尔滨电工仪表研究所 Electric energy acquisition and transmission system based on wireless sensing network
CN104978631A (en) * 2015-06-25 2015-10-14 国网辽宁省电力有限公司鞍山供电公司 Electric energy metering and management system for large-scale enterprise
CN110213387A (en) * 2019-06-28 2019-09-06 西安西拓电气股份有限公司 Power equipment monitoring method and system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201322772Y (en) * 2008-12-11 2009-10-07 淮安信息职业技术学院 Automatic power factor recorder
CN202085196U (en) * 2011-06-01 2011-12-21 安徽南瑞继远软件有限公司 Household intelligent power utilization monitoring system
CN104282134A (en) * 2014-10-28 2015-01-14 哈尔滨电工仪表研究所 Electric energy acquisition and transmission system based on wireless sensing network
CN104978631A (en) * 2015-06-25 2015-10-14 国网辽宁省电力有限公司鞍山供电公司 Electric energy metering and management system for large-scale enterprise
CN110213387A (en) * 2019-06-28 2019-09-06 西安西拓电气股份有限公司 Power equipment monitoring method and system

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