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CN-224204819-U - One-to-multiple data acquisition networking architecture

CN224204819UCN 224204819 UCN224204819 UCN 224204819UCN-224204819-U

Abstract

The utility model provides a one-to-many data acquisition networking architecture which comprises a data acquisition rod and N inverters, wherein each inverter comprises a communication main board, a power supply port and an RS-485 port, in each inverter, the power supply output end of the communication main board is connected with the power supply port, the communication end of the communication main board is connected with the RS-485 port to form an RS-485 communication branch line, the power supply input end of the data acquisition rod is connected with the power supply port of the N-th inverter to obtain a power supply, the communication end of the data acquisition rod is connected with the RS-485 port of the N-th inverter, and the RS-485 ports of all the inverters are connected in series to form an RS-485 communication bus, wherein N is a positive integer greater than or equal to 2, N is greater than or equal to 1 and less than or equal to N is a positive integer. The utility model has the advantages of simple structure, fast data processing, small packet loss probability, simple and reliable connection mode, low cost and the like.

Inventors

  • Tang Qiucheng
  • LI XIAOQIANG
  • HU WENGUI

Assignees

  • 深圳古瑞瓦特新能源有限公司

Dates

Publication Date
20260505
Application Date
20260320

Claims (10)

  1. 1. A one-to-many data acquisition networking architecture comprises a data acquisition rod and N inverters, and is characterized in that each inverter comprises a communication main board, a power supply port and an RS-485 port, wherein in each inverter, the power supply output end of the communication main board is connected with the power supply port, the communication end of the communication main board is connected with the RS-485 port to form an RS-485 communication branch line, the power supply input end of the data acquisition rod is connected with the power supply port of an N-th inverter to obtain a power supply, the communication end of the data acquisition rod is connected with the RS-485 port of the N-th inverter and the RS-485 ports of all the inverters in series to form an RS-485 communication bus, N is a positive integer greater than or equal to 2, N is greater than or equal to 1 and less than or equal to N, and N is a positive integer.
  2. 2. The one-to-multiple data acquisition networking architecture of claim 1, wherein the communication motherboard comprises a power supply module and an RS-485 communication module, an output end of the power supply module is a power output end of the communication motherboard, and a communication end of the RS-485 communication module is a communication end of the communication motherboard.
  3. 3. The one-to-multiple data acquisition networking architecture of claim 2, wherein in each inverter, the RS-485 port comprises an RS-485 first transceiver port and an RS-485 second transceiver port, the RS-485 first transceiver port is connected to the RS-485 second transceiver port, and the RS-485 second transceiver port is connected to a communication end of the RS-485 communication module.
  4. 4. A multi-data acquisition networking architecture according to claim 3, wherein the RS-485 ports of all the inverters are connected in series, specifically, the RS-485 first receiving and transmitting port of each inverter is connected with the respective RS-485 second receiving and transmitting port, the RS-485 second receiving and transmitting port of the mth inverter is connected with the (m+1) th RS-485 first receiving and transmitting port of the inverter, wherein m is greater than or equal to 1 and less than or equal to N-1, and m is a positive integer.
  5. 5. The one-to-many data acquisition networking architecture of claim 1, wherein the power port is any one of a USB port, an RJ45 port, an RS232 port.
  6. 6. The one-to-multiple data acquisition networking architecture of any one of claims 1-5, further comprising a cloud server and a networking node, the cloud server being in wireless communication connection with the networking node, the networking node being in wired or wireless communication connection with the data acquisition wand.
  7. 7. A multi-data acquisition networking architecture according to any of claims 1-5, further comprising a user terminal, wherein the data acquisition wand is communicatively coupled to the user terminal in a wired or wireless manner.
  8. 8. The one-to-many data acquisition networking architecture of claim 6, wherein the networking node is a router or a base station.
  9. 9. The architecture of claim 7, wherein the user terminal comprises any one or more of a mobile phone, a computer, a tablet, and a touch screen.
  10. 10. The one-to-many data acquisition networking architecture of any one of claims 1-5, wherein waterproof joints are respectively provided at two ends of the data acquisition rod.

Description

One-to-multiple data acquisition networking architecture Technical Field The utility model relates to the technical field of new energy, in particular to a one-to-many data acquisition networking architecture. Background Along with the increase of the global demand for clean energy, the construction scale of the photovoltaic power station is enlarged, the realization of energy management is very necessary, the inverter needs to be monitored in multiple machines, and three common multiple machine monitoring schemes exist at present: First, inverter bus topology type multi-machine monitoring; The second type, the multi-machine collector is concentrated and distributed to monitor the multi-machine; And thirdly, networking distributed multi-machine monitoring by a multi-machine collector. The first scheme has high hardware cost, complex resource allocation, dependence of the slave inverter on the master inverter, low autonomy of the slave inverter equipment and low response speed. The second scheme can be only used in indoor environment, is not suitable for outdoor use, and is insufficient in utilization rate (only about 25% of interfaces are used) in small-scale scenes, so that hardware resources are wasted. The data in the third scheme is transferred, so that the packet loss probability and delay of the data are increased, each inverter is provided with a slave collector, the whole system also needs a master collector, the number of required collector devices is large, and the hardware cost of the collectors is high. Wherein, the collector is the abbreviation of data collector. Disclosure of utility model The utility model aims to provide a one-to-many data acquisition networking architecture so as to solve the problems in the prior art. The utility model provides a one-to-many data acquisition networking architecture which comprises a data acquisition rod and N inverters, wherein each inverter comprises a communication main board, a power supply port and an RS-485 port, in each inverter, the power supply output end of the communication main board is connected with the power supply port, the communication end of the communication main board is connected with the RS-485 port to form an RS-485 communication branch line, the power supply input end of the data acquisition rod is connected with the power supply port of the N-th inverter to obtain a power supply, the communication end of the data acquisition rod is connected with the RS-485 port of the N-th inverter, and the RS-485 ports of all the inverters are connected in series to form an RS-485 communication bus, wherein N is a positive integer greater than or equal to 2, N is greater than or equal to 1 and less than or equal to N is a positive integer. Further, the communication main board comprises a power supply module and an RS-485 communication module, wherein the output end of the power supply module is the power supply output end of the communication main board, and the communication end of the RS-485 communication module is the communication end of the communication main board. Further, in each inverter, the RS-485 port includes an RS-485 first receiving and transmitting port and an RS-485 second receiving and transmitting port, the RS-485 first receiving and transmitting port is connected with the RS-485 second receiving and transmitting port, and the RS-485 second receiving and transmitting port is connected with the communication end of the RS-485 communication module. Further, the RS-485 ports of all the inverters are connected in series, specifically, the first receiving and transmitting port of the RS-485 of each inverter is connected with the second receiving and transmitting port of the RS-485 of each inverter, the second receiving and transmitting port of the RS-485 of the mth inverter is connected with the first receiving and transmitting port of the RS-485 of the (m+1) th inverter, wherein m is greater than or equal to 1 and less than or equal to N-1, and m is a positive integer. Further, the power supply port is any one of a USB port, an RJ45 port and an RS232 port. Further, the cloud server is in wireless communication connection with the networking node, and the networking node is in wired or wireless communication connection with the data acquisition rod. Further, the system also comprises a user terminal, and the data acquisition rod is in wired or wireless communication connection with the user terminal. Further, the networking node is a router or a base station. Further, the user terminal comprises any one or more of a mobile phone, a computer, a tablet and a touch screen. Further, waterproof joints are respectively arranged at two ends of the data acquisition rod. The one-to-multiple data acquisition networking architecture of the utility model solves at least the following technical problems/has at least the following beneficial effects: the structure is simple, the inverter has no master-slave division, the data processing is fast,