Development of Smart Switch for Household Appliances Using Web-Based TechnologyDevelopment of Smart Switch for Household Appliances Using Web-Based Technology

Abstract

The paper depicts design and prototypic implementation of household automation switching system for electrical appliances using web based interface technology. The proposed system consists of two parts, the first part is the hardware module, which provides appropriate interface to switches of home appliances. Second part is the software component that comprises the user control interface which monitors and controls energy consuming units in the household. Users and system administrator can locally (LAN) or remotely (WAN) control system code to activate or deactivate a desired appliance. The outcome of the study revealed that the smart household switch engendered substantial reduction in energy consumption on all kinds of appliance and it poses no threat to security of lives and properties. The device is desirable for conservation and efficient use of energy.

Modbus Extension Server Implementation for BIoT-Enabled Smart Switch Embedded System Device

“…Building automation includes a network of hardware and software interfaces and electronic circuits. It integrates various appliances and devices around the building via the Internet [ 6 , 7 , 8 ]. The communication of these devices within larger system networks, e.g., with the Internet, can be achieved via wired communications such as RS485 with or without proprietary protocols (Modbus, KNX, BacNET, LonWORK, M-Bus or Meter-Bus, other local industrial networks such as CAN, CAN-FD, XL, Profibus/Profinet, or Ethercat, or wireless ones such as Wi-Fi [ 9 , 10 ], Bluetooth [ 11 , 12 ], ZigBee, LoRaWAN, SigFox, and 6LoWPAN).…”

“…When the current device sends the response on the bus, if the slot address does not match the device's ModbusE address for the corresponding response slots, the myTaskServerMBEcycle task moves the data from the application memory organized by Modbus data and addressing model into the slot with the function "void vexecuteRecvSlotWriteRegs(uint8_t SlotIndex)" given the Modbus read functions 1, 2, 3, 4, 7, 11, 23 based on the information in the MY_SLO_PARAM slot structure. For slots with Modbus APDU, i.e., when the slot address matches the Modbus address of the device, the myTaskServerMBEcycle task moves the data and responds if necessary according to the Modbus specifications for functions 1,2,3,4,5,6,7,11,15,16,22,23, directly using the information in the request with the function "void vModbusExecuteFunctions(void)". As the highest priority task, it will perform atomic read/write operations.…”