Enhancing Modbus-RTU Communications for Smart Metering in Building Energy Management Systems

Urrea, Claudio; Morales, Claudio

doi:10.1155/2019/7010717

Cited by 10 publications

(4 citation statements)

References 22 publications

(27 reference statements)

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“…Fig. 5 shows the structure of the data frame in Modbus RTU, including four message structures: address, function code, data and CRC (cyclic redundancy check) [26]. The first three fields contain the necessary information for Modbus transactions, while the fourth field corresponds to a 16-bit CRC calculation to detect errors.…”

Section: ) Modbus Protocolmentioning

confidence: 99%

Multi-Points Indoor Air Quality Monitoring Based on Internet of Things

et al. 2021

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Indoor air quality monitoring is of great importance to human health as people typically spend more than 90% of their time in indoor environments. An indoor air quality detector (IAQD) enabling measurement of CO2, PM2.5, temperature, humidity, has been designed and tested in residential buildings based on Internet of Things (IoT). The hardware and software design of IAQD are described in detail, and seven IAQDs with Zigbee wireless module embedded were deployed in the target building for a continuous period of one month in winter. The gateway collects sensor data from each IAQD in turn at an interval of two minutes, and transmits data to server in the cloud via GPRS/4G. The authorized users can access cloud platform via mobile apps or the Web browser. Monitoring data analysis results reveal that the maximum PM2.5 concentrations is 10 times than usual during cooking period, and CO2 concentrations with the door closed will rise to 2500 ppm compared to the door opened at night, which threatens the health of occupants.

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Section: ) Modbus Protocolmentioning

confidence: 99%

Multi-Points Indoor Air Quality Monitoring Based on Internet of Things

et al. 2021

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“…The results obtained from simulations and experimental tests validated the effectiveness of the proposed method to increase the data rate while maintaining the reliability of the protocol. Researchers performed experimental validations demonstrating the effectiveness of the proposed method in isolating the segments susceptible to disturbances in a communication bus [17]. This maintained the compatibility with commercial devices and improved the performance of the entire network.…”

Section: Related Workmentioning

confidence: 91%

Enhancing the Modbus Communication Protocol to Minimize Acquisition Times Based on an STM32-Embedded Device

Zagan

Găitan

2022

Mathematics

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The primary function of a distributed bus is to connect sensors, actuators, and control units that are used for an acquisition process. Application domains, such as industrial monitoring and control systems, manufacturing processes, or building automation, present different requirements that are not exactly invariable and coherent. Updating data from Modbus-type devices involves updating data through a technique called polling, which involves repeatedly scanning the registers from each device. This paper highlights the performance of Modbus communication, considering scenarios in which distributed devices are integrated and accessed registers are or are not at consecutive addresses. The Modbus protocol allows reading one or more holding-type data registers. If the registers are not at consecutive addresses, multiple requests are required, with implications for the real-time characteristics of the data acquisition system. We studied the data update times within the SMARTConvert application when variable numbers of registers are accessed, and we designed an extension for the Modbus protocol. The major reason Modbus is used in current research is that no assumptions are required about application semantics, and the performance/resource ratio for generic services is excellent.

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“…To optimize the SoC of BSS in the EVCS during the off-peak duration, the optimization approach is employed for the estimation of solar generation and EVs charging load is referred to in Figure 2. Figure 2 highlights the features of a coordinated system through supervisory control for bidirectional communication with VSI over MODBUS and the EMS for storage over CANBUS [45]. The intelligent coordinated controller uses the past data from the PV panels to estimate the available DG power and estimates the required EVs charging loads based on previous charging patterns and weather conditions.…”

Section: Coordinated Control Strategymentioning

confidence: 99%

Intelligent energy management scheme‐based coordinated control for reducing peak load in grid‐connected photovoltaic‐powered electric vehicle charging stations

Amir

Din

Haque

et al. 2023

IET Generation Trans & Dist

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Solar‐based Distributed Generation (DG) powered Electric Vehicles (EVs) charging stations are widely adopted nowadays in the power system networks. In this process, the distribution grid faces various challenges caused by intermittent solar irradiance, peak EVs load, while controlling the state of charge (SoC) of batteries during dis(charging) phenomena. In this paper, an intelligent energy management scheme (IEMS)‐based coordinated control for photovoltaic (PV)‐based EVs charging stations is proposed. The proposed IEMS optimizes the PV generation and grid power utilization for EV charging stations (EVCS) by analysing real‐time meteorological and load demand data. The coordinated control of EMS provides power flow between PV generation, distribution grid, and EVs battery storage in a manner which results in the reduction of peak power demand by a factor of two. Further, the adaptive neuro‐based fuzzy control approach includes forecasting solar‐based electricity generation and EVs loads demand predictions to optimize IEMS according to the Indian power scenario. The proposed IEMS optimally utilizes the buffer batteries system for reducing the peak electricity demand with low system losses and reducing the impact of EVs charging load on distribution grid. The results are analysed using the digital simulation model and validated with real‐time hardware‐in‐loop experimental setup.

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Enhancing Modbus-RTU Communications for Smart Metering in Building Energy Management Systems

Cited by 10 publications

References 22 publications

Multi-Points Indoor Air Quality Monitoring Based on Internet of Things

Multi-Points Indoor Air Quality Monitoring Based on Internet of Things

Enhancing the Modbus Communication Protocol to Minimize Acquisition Times Based on an STM32-Embedded Device

Intelligent energy management scheme‐based coordinated control for reducing peak load in grid‐connected photovoltaic‐powered electric vehicle charging stations

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