CN112654022B - Electric power system thing networking data acquisition system based on loRa communication - Google Patents
Electric power system thing networking data acquisition system based on loRa communication Download PDFInfo
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- CN112654022B CN112654022B CN202011239300.7A CN202011239300A CN112654022B CN 112654022 B CN112654022 B CN 112654022B CN 202011239300 A CN202011239300 A CN 202011239300A CN 112654022 B CN112654022 B CN 112654022B
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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
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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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
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- 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
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Abstract
The invention relates to the field of power system internet of things, in particular to a power system internet of things data acquisition system based on LoRa communication, which comprises: the data acquisition terminal comprises at least one sensor for acquiring data, a microprocessor for processing the acquired data, an LoRa communication module for transmitting the data and a power amplifier for amplifying the power of a transmission signal; the base station is used for receiving the data uploaded by the data acquisition terminal and sending the data to the data acquisition terminal; and the cloud server is used for receiving and processing the data uploaded by the base station and also used for sending the data to the data acquisition terminal through the base station. By using the present invention, the following effects can be achieved: the method has the characteristics of easy use, small size, long transmission distance and low power consumption.
Description
Technical Field
The invention relates to the field of power system internet of things, in particular to a data acquisition system of the power system internet of things based on LoRa communication.
Background
In recent decades, especially since the 21 st century, under the promotion of national policies and the effort of power enterprises, the scale of the power grid in China is rapidly increased, but at the same time, the problem of energy shortage is exposed, the structural contradiction is excited, in addition, the requirements of users on power supply reliability are increasingly strict, the service requirements are more diverse, and the challenges of power grid operation are aggravated. In order to meet the challenges, researches and practices in the aspects of basic theories, key technologies, demonstration projects and the like of the smart grid are developed at home and abroad, and various advanced technologies such as modern communication, information, automation, measurement and the like are highly integrated and are fused and applied to various links such as power generation, power transmission, power transformation, power distribution, power utilization, scheduling and the like and information systems. Along with the attention of the state to the field of the smart power grid, the online monitoring of power system equipment is an important part of the smart power grid, the industrial scale is continuously enlarged, the application range of management and information management is wider and wider, the online detection technology and monitoring of the power equipment and the power transmission line become reality, a plurality of state parameters of the equipment can be monitored in real time, then the collected data are transmitted to a monitoring center by utilizing the advanced wireless communication technology, the monitoring center analyzes the data information carefully, whether the operation condition of the power transmission line is abnormal or not can be automatically extracted, and a unified information display platform is provided for managers.
However, the current data acquisition system has large power consumption and short transmission distance.
Disclosure of Invention
In order to solve the problems, the invention provides an electric power system internet of things data acquisition system based on LoRa communication.
Electric power system thing networking data acquisition system based on loRa communication includes:
the data acquisition terminal comprises at least one sensor for acquiring data, a microprocessor for processing the acquired data, an LoRa communication module for transmitting the data and a power amplifier for amplifying the power of a transmission signal;
the base station is used for receiving the data uploaded by the data acquisition terminal and sending the data to the data acquisition terminal;
and the cloud server is used for receiving and processing the data uploaded by the base station and also used for sending the data to the data acquisition terminal through the base station.
Preferably, the data acquisition terminal actively uploads data to the base station in the first working mode, and the data transmitted by the base station can be received only in a fixed window period after the data is transmitted.
Preferably, in the second working mode, the data acquisition terminal opens a receiving window through a fixed period to receive the data issued by the base station.
Preferably, in the third working mode, the sending window and the receiving window of the data acquisition terminal are always in an open state, and data is uploaded to the base station and received from the base station in real time.
Preferably, the data acquisition terminals are configured with unique device codes, the base station classifies the received data according to different device codes of each data acquisition terminal, and uploads the classified data to the cloud server respectively.
Preferably, the method further comprises the following steps:
and the client is used for receiving and displaying the data sent by the cloud server.
Preferably, the client logs in the cloud server through the unique ID and the unique key, data are issued to the cloud server, the cloud server analyzes and packages the data and issues the data to the base station, and the base station issues the data to the data acquisition terminal.
By using the present invention, the following effects can be achieved:
the LoRa communication module has the characteristics of easy use, small size, long transmission distance and low power consumption;
2. the data acquisition terminal has three working modes, can realize free switching of the three modes according to requirements, and has practicability under the condition of considering power consumption;
3. the client can be connected to the internet through the unique ID and the key to obtain information uploaded by the terminal, and can also send data to the terminal through the cloud server and the base station.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of an internet of things data acquisition system of a power system based on LoRa communication according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an internet of things data acquisition system of a power system based on LoRa communication according to another embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be further described below with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
The embodiment of the invention provides an electric power system internet of things data acquisition system based on LoRa communication, which comprises at least one data acquisition terminal, wherein the data acquisition terminal comprises at least one sensor for acquiring data, a microprocessor for processing the acquired data, a LoRa communication module for transmitting the data and a power amplifier for amplifying the power of a transmission signal; the base station is used for receiving the data uploaded by the data acquisition terminal and sending the data to the data acquisition terminal; and the cloud server is used for receiving and processing the data uploaded by the base station and also used for issuing the data to the data acquisition terminal through the base station.
The LoRa communication module has the characteristics of easy use, small size, long transmission distance, low power consumption and the like, and is a very good solution for long-distance wireless data transmission.
A data acquisition terminal: namely, intelligent hardware with a LoRa communication module is loaded with various sensors. The intelligent sensing system is mainly used for intelligently sensing objects, collecting data, uploading the data information to a base station through an LoRa network, and receiving data issued by the base station.
According to the difference of the working modes, the data acquisition terminal can be divided into three different working devices of a first working mode, a second working mode and a third working mode, and some data acquisition terminals can simultaneously have the three working modes and can realize the free switching of the three modes according to the requirements.
In the first working mode, the data acquisition terminal actively reports data, a receiving window of the data acquisition terminal is closed at ordinary times, and the data transmitted by the base station can be received only in a fixed window period after the data are transmitted. Therefore, the data acquisition terminal in the first working mode cannot respond to the issued data of the base station in time when working, but the relative power consumption is lower, and the mode is mainly applied to occasions with low real-time requirement on control requirement and high requirement on low power consumption, such as the implementation of a smoke alarm system. In a second working mode, the data acquisition terminal fixes a period and opens a receiving window, so that the real-time performance and the low power consumption are met, but the fixed period has higher requirement on time synchronization, and the method is mainly applied to the realization of systems such as remote copying; in a third working mode, a sending window and a receiving window of the data acquisition terminal are opened for a long time, the data acquisition terminal does not consider power consumption and can receive downlink data from the base station at any time, the real-time performance is the best, and the third working mode is suitable for control application which has higher requirements on the real-time performance and does not need to consider the power consumption problem, such as an intelligent street lamp control system in the application of the urban Internet of things.
The data acquisition terminal supports the latest LoRaWAN A-type and C-type technical protocol specifications and can be very conveniently accessed to a low-power-consumption wide area network Internet of things platform such as Actity. In addition, the system also supports the point-to-point communication function of the LoRa, and the function can help users to quickly establish a private long-distance LoRa network of the users. The module integrates SX1276 and STM32L chips of Semtech and provides a UART interface to enable a user to send AT serial port instructions. Users can conveniently complete their applications on the basis, for example, the application of simple remote sensor data communication by using an external master control MCU, and the characteristic of low power consumption is very suitable for battery application.
The data acquisition terminal is divided into two versions, and a high-frequency version module works on a long-distance low-power LoraWAN with 868MHz or 915MHz frequency; the low-frequency module works at 433MHZ or 470-510 MHZ frequency. The data acquisition terminal has small size and low power consumption; the receiving sensitivity can reach-140dBm @ SF12; the transmitting power can be adjusted to be high-efficiency PA increased by 14dBm, and can be increased to 20dBm at most; FSK, GFSK and LoRa technical modules; the range of 15 kilometers can be covered in open suburbs, and the range of 5 kilometers can be covered in cities.
The base station is a key device of the data acquisition system, the data acquisition terminal uploads the data to the cloud server through the base station, and the cloud server can also issue the data to the data acquisition terminal through the cloud server. The base station aims to relieve concurrency conflicts caused by mass terminal data reporting. One base station can be accessed to dozens of to tens of thousands of terminals, the base station can distinguish and process different terminal information according to different equipment codes of each data acquisition terminal, the compatibility of the base station is very strong, all terminals conforming to Lo RaWAN protocols can be accessed, and the deployment cost and the operation cost of the base station in the current market are very low.
The cloud server is mainly responsible for data management and analysis of the whole system, the data acquisition terminal uploads data to the cloud server through the base station, and the cloud server can complete analysis and packaging of the uplink data packet.
In some embodiments, as shown in fig. 2, the system further includes a client, where the client can connect to the internet through a unique ID and a key to obtain information uploaded by the terminal; meanwhile, the client can also issue data to the terminal through the cloud server and the base station, the client logs in the cloud server through the unique ID and the unique key at first and issues the data to the cloud server, the cloud server is responsible for analyzing and packaging the data and then issuing the data to the base station, and finally the base station issues the data to the data acquisition terminal.
The system can complete communication between the intelligent hardware terminal and the client, the client can display the information collected and reported by the data collection terminal in real time, and the client can also realize a certain control function by issuing data to the data collection terminal. The system architecture has many advantages, firstly, the signal coverage range is very wide, the capacity is very high, only a small number of base stations are deployed in a large area to realize the terminal information acquisition of the whole area, and much cost can be saved; next, when data passes through these portions, the data is encrypted and analyzed, and thus the security of the data is also high.
Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (4)
1. Electric power system thing networking data acquisition system based on loRa communication, its characterized in that includes:
the data acquisition terminal comprises at least one sensor for acquiring data, a microprocessor for processing the acquired data, an LoRa communication module for transmitting the data and a power amplifier for amplifying the power of a transmission signal;
the base station is used for receiving the data uploaded by the data acquisition terminal and issuing the data to the data acquisition terminal;
the cloud server is used for receiving and processing the data uploaded by the base station and sending the data to the data acquisition terminal through the base station;
the data acquisition terminal actively uploads data to the base station in a first working mode, and the data transmitted by the base station can be received only in a fixed window period after the data are transmitted;
the data acquisition terminal opens a receiving window through a fixed period to receive data issued by the base station in a second working mode;
in a third working mode of the data acquisition terminal, a sending window and a receiving window of the data acquisition terminal are always in an open state, and data are uploaded to a base station and received from the base station in real time;
according to the difference of the working modes, the data acquisition terminal can be divided into three different working devices of a first working mode, a second working mode and a third working mode, and some data acquisition terminals can simultaneously have the three working modes and can realize the free switching of the three modes according to the requirements.
2. The LoRa communication-based power system internet of things data acquisition system of claim 1, wherein the data acquisition terminals are configured with unique device codes, the base station classifies the received data according to different device codes of each data acquisition terminal, and uploads the classified data to the cloud server respectively.
3. The LoRa communication-based power system internet of things data acquisition system of any one of claims 1 to 2, further comprising:
and the client is used for receiving and displaying the data sent by the cloud server.
4. The LoRa communication-based power system internet of things data acquisition system of claim 3, wherein the client logs in the cloud server through the unique ID and the key and issues the data to the cloud server, the cloud server analyzes and packages the data and issues the data to the base station, and the base station issues the data to the data acquisition terminal.
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| CN113055845A (en) * | 2021-05-27 | 2021-06-29 | 四块科技(深圳)有限公司 | Data display system and method based on LORA technology |
| CN114025323A (en) * | 2021-10-19 | 2022-02-08 | 国网浙江省电力有限公司宁波供电公司 | Power grid equipment data interaction system and method based on LoRa communication |
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