Multi-port multi-mode IoT communication terminal supporting multi-meter combined reading and reading method thereof

Abstract

The invention discloses a multi-port multi-mode IoT communication terminal supporting multi-meter combined reading and a reading method thereof. A wireless communication unit and a data acquisition unit of the communication terminal are respectively connected to a data processing unit; a configuration interface is respectively connected to the wireless communication unit, the data processing unitand the data acquisition unit through a configuration unit; one end of an RS485 interface and / or an RS232 interface is connected to the data acquisition unit, and the other end is used for connectinga plurality of meters; the wireless communication unit includes a LoRa wireless communication subunit and / or a NB-IoT wireless communication subunit and / or a WIFI wireless communication subunit and / ora GPRS communication subunit. The terminal has the advantage that different types and different protocols of sensor or meter reading data are connected to a wireless network in different modes quickly by configuring the multi-port multi-mode IoT communication terminal, thereby reducing the research and development cost, improving the transformation efficiency of the old equipment and reducing theconstruction quantity.

Description

technical field [0001] The invention relates to the technical field of Internet of Things communication, in particular to a multi-terminal and multi-mode Internet of Things communication terminal supporting multi-meter combined reading and a meter reading method thereof. Background technique [0002] The rapid development of Internet of Things communication technology represented by LoRa and NB-IoT technology has stimulated the demand for large-scale wireless access network of sensors and meter data in various industries such as electric power, water conservancy, petroleum, chemical industry, transportation, environmental protection, environment, etc. . [0003] At present, there are a large number of communication terminals in various communication modes such as LoRa, NB-IoT, eMTC and WIFI on the market. However, there are some problems and deficiencies in the application of these communication terminals. [0004] Assuming that a community wants to remotely read the water...

AI Technical Summary

Problems solved by technology

[0008] 1) The vast majority of communication terminals can only work in transparent transmission mode (single-ended), that is, communication terminals can only passively receive data sent by sensors or meters, and cannot send read data commands to sensors or meters

This type of communication terminal can be directly applied to sensors or meters that can actively upload data (such as the water meter in the table), but cannot be directly applied to sensors or meters that rely on the host to send data query commands

If you want to apply to sensors or meters that rely on the host to issue data query commands, you must carry out secondary development and re-integrate the system. Therefore, the cost of research and development is increased, the work efficiency is reduced, and the applicability is not strong.

[0009] 2) Individual communication terminals support sending commands to read data, but they can only configure one sending command, which can only be applied to the situation where only one meter data needs to be read (such as water meters, gas meters, heat meters in the meter) , and a communication terminal can only be connected to one type of sensor or meter, which cannot be applied to the situation where multiple meter data needs to be obtained (such as the electric meter in the meter, in fact, it is very common to obtain multiple meter data)

If you want to obtain multiple pieces of data, you must customize the development. Therefore, the system integration is low and the secondary research and development costs are high, which is not conducive to promotion

[0010] 3) The communication terminal can only work in one communication mode (single mode)

[0012] 1) Meters with different communication protocols need to customize the development of software and hardware, or purchase different communication terminals;

[0013] 2) Meters with different communication modes need to customize the development of software and hardware, or purchase different communication terminals;

[0014] 3) Multi-meter connected meters need to customize the development of software and hardware, or purchase different communication terminals

[0015] Therefore, the same set of communication terminals does not have versatility and there is a large secondary research and development work, which greatly increases the threshold for customers to use, and at the same time reduces work efficiency, which has serious disadvantages

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