CN113259854A - Photovoltaic array fault positioning system based on NB-IoT and Zigbee - Google Patents

Photovoltaic array fault positioning system based on NB-IoT and Zigbee Download PDF

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Publication number
CN113259854A
CN113259854A CN202110476392.9A CN202110476392A CN113259854A CN 113259854 A CN113259854 A CN 113259854A CN 202110476392 A CN202110476392 A CN 202110476392A CN 113259854 A CN113259854 A CN 113259854A
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CN
China
Prior art keywords
terminal
zigbee
iot
photovoltaic array
beacon
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Pending
Application number
CN202110476392.9A
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Chinese (zh)
Inventor
余登敏
秦廷翔
张连超
徐和
黄隆恒
仁科杰
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PowerChina Guizhou Engineering Co Ltd
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PowerChina Guizhou Engineering Co Ltd
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Publication date
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Priority to CN202110476392.9A priority Critical patent/CN113259854A/en
Publication of CN113259854A publication Critical patent/CN113259854A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

Abstract

The invention provides a photovoltaic array fault positioning system based on NB-IoT and Zigbee, which comprises a common terminal, a beacon terminal and a routing terminal, wherein the common terminal is connected with the beacon terminal through the routing terminal; the common terminal is internally provided with a sensor module and is connected with the beacon terminal and the routing terminal through short-distance wireless communication; and a communication module in the beacon terminal is accessed to a wide area network and connected to a remote service center, and acquires the position information of a common terminal and/or a routing terminal in an RSSI (received signal strength indicator) mode. The terminal of the invention transmits data in a wireless mode, thus having better expandability; the base station positioning function and the satellite positioning function are integrated, and under the condition that no base station signal exists around the beacon node, the position information can be obtained through satellite positioning, so that the reliability of photovoltaic array fault positioning is improved, and the maintenance efficiency is ensured; only the beacon terminal is provided with the Beidou module, so that the positioning cost is low.

Description

Photovoltaic array fault positioning system based on NB-IoT and Zigbee
Technical Field
The invention relates to a photovoltaic array fault positioning system based on NB-IoT and Zigbee.
Background
The number of photovoltaic power stations in each region is increased rapidly, and the application range and the application scale of photovoltaic power generation are also expanded rapidly. However, there are also some common problems, the geographical location of the photovoltaic power station is usually far away, the environmental climate is severe, the equipment failure is easy to occur, and the manual inspection and maintenance are inconvenient, wherein except the dc cabinet, the combiner box and the inverter, in the photovoltaic power station equipment, the photovoltaic array as the main part is composed of a large number of photovoltaic modules, and the photovoltaic modules are easy to age, short-circuit and open circuit due to environmental factors, and are easily covered by various animal and plant wastes to form shadows, which leads to hot spot effect. Because the number of photovoltaic modules is huge, the efficiency of the traditional manual detection method is low, and the defects of the existing photovoltaic array fault monitoring system mainly comprise: (1) data transmission is carried out in a wired mode, and the defects of high deployment difficulty and poor mobility exist; (2) the positioning system based on the NB-IoT design does not consider the situation that no NB-IoT network signal exists, which leads to positioning failure; (3) configuring all nodes with GPS modules results in increased system cost.
Disclosure of Invention
In order to solve the technical problems, the invention provides a photovoltaic array fault positioning system based on NB-IoT and Zigbee.
The invention is realized by the following technical scheme.
The invention provides a photovoltaic array fault positioning system based on NB-IoT and Zigbee, which comprises a common terminal, a beacon terminal and a routing terminal, wherein the beacon terminal is connected with the routing terminal; the common terminal is internally provided with a sensor module and is connected with the beacon terminal and the routing terminal through short-distance wireless communication; and a communication module in the beacon terminal is accessed to a wide area network and connected to a remote service center, and acquires the position information of a common terminal and/or a routing terminal in an RSSI (received signal strength indicator) mode.
And a positioning module is also arranged in the beacon terminal.
And the communication module in the beacon terminal is an NB-IoT module.
The short-range wireless communication is Zigbee communication.
And the sensor module in the common terminal comprises a temperature sensor, a current sensor and a voltage sensor.
The positioning module is a Beidou module.
And a temperature sensor is arranged in the routing terminal.
And the central control chips of the common terminal and the routing terminal are both CC2530 single-chip microcomputers.
And the central control chip of the beacon terminal is an STM32L0 series single-chip microcomputer.
The invention has the beneficial effects that: the terminal transmits data in a wireless mode, so that the expandability is good; the base station positioning function and the satellite positioning function are integrated, and under the condition that no base station signal exists around the beacon node, the position information can be obtained through satellite positioning, so that the reliability of photovoltaic array fault positioning is improved, and the maintenance efficiency is ensured; only the beacon terminal is provided with the Beidou module, so that the positioning cost is low.
Drawings
FIG. 1 is a schematic of the distribution of the present invention;
fig. 2 is a block diagram illustrating connection of modules of the general terminal of fig. 1;
FIG. 3 is a block diagram of the connection of the modules of the routing terminal of FIG. 1;
fig. 4 is a schematic diagram of module connection of the beacon terminal in fig. 1.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
Example 1
As shown in fig. 1 to 4, a NB-IoT and Zigbee-based photovoltaic array fault location system includes a common terminal, a beacon terminal, and a routing terminal; the common terminal is internally provided with a sensor module and is connected with the beacon terminal and the routing terminal through short-distance wireless communication; a communication module in the beacon terminal is accessed to a wide area network and connected to a remote service center, and position information of a common terminal and/or a routing terminal is acquired in an RSSI (received signal strength indicator) mode.
Example 2
Based on the embodiment 1, the beacon terminal also comprises a positioning module.
Example 3
Based on embodiment 1, and the communication module in the beacon terminal is an NB-IoT module.
Example 4
Based on embodiment 1, and the short-range wireless communication is Zigbee communication.
Example 5
Based on embodiment 1, the sensor module in the common terminal includes a temperature sensor, a current sensor and a voltage sensor.
Example 6
Based on embodiment 2 to, the orientation module is big dipper module.
Example 7
Based on embodiment 1, and there is a temperature sensor in the route terminal.
Example 8
Based on embodiment 1, the central control chips of the ordinary terminal and the routing terminal are both CC2530 singlechips.
Example 9
Based on embodiment 1, and the central control chip of the beacon terminal is an STM32L0 series single chip microcomputer.
Example 10
Based on the above embodiments, specifically, a mesh topology structure is adopted, and any terminal in the network can perform point-to-point communication;
the common terminal is composed of a Zigbee module, a power module and a sensor module;
a Zigbee module of the common terminal selects a CC2530 integrated with a microprocessor and is used for receiving and processing data;
a power supply module of the common terminal selects a 6V, 7Ah direct-current power supply;
the sensor module of the common terminal comprises a temperature sensor, a current sensor and a voltage sensor;
the temperature sensor of the common terminal selects DS18B20, is connected with the microprocessor and is used for measuring the working temperature of the solar panel;
the current sensor of the common terminal is selected from FC-DJI-0-500, and the current sensor is used for measuring the working current of the photovoltaic array;
the voltage sensor of the common terminal selects FC-DJV-0-500, and the voltage sensor is used for measuring the working voltage of the photovoltaic array;
the ordinary terminal is accessed to a Zigbee network through a Zigbee module and is used for transmitting data to the routing terminal and acquiring the position of the ordinary terminal through the beacon terminal;
the routing terminal is composed of a Zigbee module, a temperature sensor and a power module;
the Zigbee module of the routing terminal selects the CC2530 integrated with the microprocessor and is used for receiving and processing data;
the temperature sensor of the routing terminal selects DS18B20, is connected with CC2530 and is used for measuring the working temperature of the routing terminal;
a power supply module of the routing terminal selects a 6V, 7Ah direct-current power supply;
the routing terminal is accessed to a Zigbee network through a Zigbee module and used for acquiring data and forwarding data of the common terminal, and the position of the routing terminal is obtained through the beacon terminal;
the routing terminal accesses the NB-IoT network through the beacon terminal;
the beacon terminal is composed of a microprocessor, a Zigbee module, an NB-IoT module, a Beidou module, a storage module and a power supply module;
the microprocessor of the beacon terminal selects STM32L073 for processing and receiving data;
the Zigbee module of the beacon terminal selects the CC2530 integrated with the microprocessor and is used for receiving and processing data;
NB-IoT module selection SIM7020C of the beacon terminal;
the Beidou module of the beacon terminal selects ATGM332D and is used for receiving position information sent by a Beidou satellite;
the storage module of the beacon terminal selects MT29F64G08CBAAAWP with 64G storage space for storing data;
a power supply module of the beacon terminal selects a 12V and 10Ah direct-current power supply;
the beacon terminal converts the Zigbee network signals into NB-IoT network signals;
the beacon terminal converts the NB-IoT network signals into Zigbee network signals;
the beacon terminal acquires geographical position information of the beacon terminal through an NB-IoT network;
the beacon terminal acquires geographical position information of the beacon terminal through the Beidou module;
and the remote service center completes the functions of data storage and processing, and fault photovoltaic array position positioning and display.
The general working principle is as follows:
when the beacon terminal can receive positioning information from the NB-IoT network through the NB-IoT module, the Beidou module is turned off to save node energy consumption;
the beacon terminal broadcasts the position of the beacon terminal to a common terminal and a routing terminal, and the common terminal and the routing terminal acquire the position information of the beacon terminal;
the common terminal and the routing terminal obtain RSSI according to the Zigbee module and calculate the distance to the beacon terminal according to the RSSI;
the common terminal and the routing terminal execute trilateration according to the RSSI signal strength to obtain the positions of the common terminal and the routing terminal;
the common terminal transmits the acquired data to the routing terminal through the common terminal or directly transmits the acquired data to the routing terminal;
the routing terminal transmits the received data to the beacon terminal and transmits the data to the remote service center through the information between the beacon terminals;
the remote service center can store the position information and the working state of all the terminals in the system;
the remote service center can judge the failed photovoltaic array through analysis and display the position of the failed photovoltaic array.

Claims (9)

1. The utility model provides a photovoltaic array fault location system based on NB-IoT and Zigbee, includes ordinary terminal, beacon terminal, route terminal, its characterized in that: the common terminal is internally provided with a sensor module and is connected with the beacon terminal and the routing terminal through short-distance wireless communication; and a communication module in the beacon terminal is accessed to a wide area network and connected to a remote service center, and acquires the position information of a common terminal and/or a routing terminal in an RSSI (received signal strength indicator) mode.
2. The NB-IoT and Zigbee-based photovoltaic array fault location system of claim 1, wherein: and a positioning module is also arranged in the beacon terminal.
3. The NB-IoT and Zigbee-based photovoltaic array fault location system of claim 1, wherein: and the communication module in the beacon terminal is an NB-IoT module.
4. The NB-IoT and Zigbee-based photovoltaic array fault location system of claim 1, wherein: the short-range wireless communication is Zigbee communication.
5. The NB-IoT and Zigbee-based photovoltaic array fault location system of claim 1, wherein: and the sensor module in the common terminal comprises a temperature sensor, a current sensor and a voltage sensor.
6. The NB-IoT and Zigbee-based photovoltaic array fault location system of claim 2, wherein: the positioning module is a Beidou module.
7. The NB-IoT and Zigbee-based photovoltaic array fault location system of claim 1, wherein: and a temperature sensor is arranged in the routing terminal.
8. The NB-IoT and Zigbee-based photovoltaic array fault location system of claim 1, wherein: and the central control chips of the common terminal and the routing terminal are both CC2530 single-chip microcomputers.
9. The NB-IoT and Zigbee-based photovoltaic array fault location system of claim 1, wherein: and the central control chip of the beacon terminal is an STM32L0 series single-chip microcomputer.
CN202110476392.9A 2021-04-29 2021-04-29 Photovoltaic array fault positioning system based on NB-IoT and Zigbee Pending CN113259854A (en)

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Application Number Priority Date Filing Date Title
CN202110476392.9A CN113259854A (en) 2021-04-29 2021-04-29 Photovoltaic array fault positioning system based on NB-IoT and Zigbee

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* Cited by examiner, † Cited by third party
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CN101577979A (en) * 2009-06-01 2009-11-11 扬州大学 Wireless sensor network device of photovoltaic power station
CN104868843A (en) * 2015-06-08 2015-08-26 江汉大学 Solar photovoltaic module array data collection device and data processing method thereof
CN104868846A (en) * 2015-06-08 2015-08-26 江汉大学 Solar photovoltaic module array data acquisition method based on wireless internet of things
CN104932395A (en) * 2015-06-08 2015-09-23 江汉大学 Intelligent maintenance device and method of photovoltaic assembly monitoring system
CN107222830A (en) * 2017-04-28 2017-09-29 上海美迪索科电子科技有限公司 A kind of positioning terminal device with communication based on NB IoT
CN107219541A (en) * 2017-04-28 2017-09-29 上海美迪索科电子科技有限公司 A kind of positioning terminal device and its localized delivery method based on NB IoT
US20180262868A1 (en) * 2016-05-13 2018-09-13 Qualcomm Incorporated Method and/or system for positioning of a mobile device
CN109949608A (en) * 2019-04-26 2019-06-28 南京邮电大学 Stagger the time parking management system and method based on narrowband Internet of Things
CN110571924A (en) * 2019-07-31 2019-12-13 成都三六八建设工程有限公司 photovoltaic power generation remote monitoring system and method thereof
US20200128383A1 (en) * 2006-05-16 2020-04-23 Nicholas M. Maier Method and system for an emergency location information service (e-lis) for water-based network devices

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200128383A1 (en) * 2006-05-16 2020-04-23 Nicholas M. Maier Method and system for an emergency location information service (e-lis) for water-based network devices
CN101577979A (en) * 2009-06-01 2009-11-11 扬州大学 Wireless sensor network device of photovoltaic power station
CN104868843A (en) * 2015-06-08 2015-08-26 江汉大学 Solar photovoltaic module array data collection device and data processing method thereof
CN104868846A (en) * 2015-06-08 2015-08-26 江汉大学 Solar photovoltaic module array data acquisition method based on wireless internet of things
CN104932395A (en) * 2015-06-08 2015-09-23 江汉大学 Intelligent maintenance device and method of photovoltaic assembly monitoring system
US20180262868A1 (en) * 2016-05-13 2018-09-13 Qualcomm Incorporated Method and/or system for positioning of a mobile device
CN107222830A (en) * 2017-04-28 2017-09-29 上海美迪索科电子科技有限公司 A kind of positioning terminal device with communication based on NB IoT
CN107219541A (en) * 2017-04-28 2017-09-29 上海美迪索科电子科技有限公司 A kind of positioning terminal device and its localized delivery method based on NB IoT
CN109949608A (en) * 2019-04-26 2019-06-28 南京邮电大学 Stagger the time parking management system and method based on narrowband Internet of Things
CN110571924A (en) * 2019-07-31 2019-12-13 成都三六八建设工程有限公司 photovoltaic power generation remote monitoring system and method thereof

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Application publication date: 20210813