Abstract
This paper proposed a new smart home master control system based on Z-wave network and the TI-CC1125 transceiver. The smart home system includes lighting system, security system, smoke sensors, environment control and other equipment which are connected to a wireless communication network. Instead of having a specific controller for each system, in this paper we suggest having a master controller that monitor all systems status via sniffing their transceiver signals. Z-wave is the selected communication technology for this research. The Texas instrument lower power consumption transceiver (TI-CC1125) is used for this purpose in the sniffer mode of operation. Smart RF Studio 7 and the Code Composer Studio (CCS), both produced by Texas Instrument, are used for programming the Transceiver. The sniffed packets are displayed by the on-board LCD screen as well as the on PC application over UART interface, which can be processed later for a specific function.
Highlights
The receiver current is very important parameter, especially for the battery powered devices
Home automation become very popular in the recent years, to integrates electrical devices (i.e. Comfort Function, Security Function, Medical etc.) in a house with each other, this means, many devices working in the same closed area, these devices are not sending and receiving signals all the time, the RX Sniff Mode would be the best choice to monitor the signals transferred between different devices
The received packet is evaluated and compared with the transmitted one to make sure that the received packet carries the expected information from the source node
Summary
The receiver current is very important parameter, especially for the battery powered devices. The Sniffer is a device that eavesdrops the network traffic by grabbing the traveling information over the communication medium. In this mode, the device wakes up from the sleep state to RX and go back to sleep periodically with a defined duty cycle [1]. The device wakes up from the sleep state to RX and go back to sleep periodically with a defined duty cycle [1] This concept is strongly enhanced by CC1125 Transceiver due to its short settling time. Z-Wave oriented to interconnect many functions dealing with security, lighting, climate conditioning door locks etc. to perform automation on these functions [2]
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