Method and device for remotely sensing and monitoring physical quantities with low power ad hoc network

A method for remotely sensing and monitoring physical quantities with low power ad hoc network applicable to remotely monitor environment parameters and related physical quantities in a target locale, and convert the physical quantities sensed by various types of sensors set in the target locale to electrical signals and transmit the converted electrical signals to a remote controller through wireless network for processing and operation, the method comprising:

• A. setting at least one intelligent sensor in the target locale, for collection of the physical quantities, data conversion and data correction, compensation, and data storage, and converting the physical quantities sensed by each sensor to quantized data in a fixed format;
• B. adopting an embedded CPU of a Z-Wave module as a main microprocessor, ensuring read/write command address and timing of the intelligent sensors in software, and adopting general input output (I/O) of the Z-Wave module connected to special I/O ports of the intelligent sensors in hardware, to obtain two-way communication control function;
• C. a Z-Wave network system forming a mesh network topology through a plurality of nodes added in the Z-Wave network, wherein the mesh network topology has self-organizing and self-healing flexible mechanisms, and addition or removal of each node is executed by the remote controller;
• D. setting EEPROM or flash memory, to store configuration parameters, routing tables, network identification numbers HOME IDs, and portions of Z-Wave protocol data;
• E. burning an initial file through a programmer port, wherein the Z-Wave module communicate with a main control circuit through a three-line serial peripheral interface (SPI) port, SPI bus master input/slave output (MISO), SPI bus master output/slave input (MOSI), serial clock (SCLK), and a select signal (EE_CS);
• and
• F. setting a maximum number of nodes as 232 in a network, setting an only unique and identical HOME ID, and setting different NOME IDs for different nodes.