Dependability and intelligence are demanded for the sensor nodes of IoT applications, because a great number of sensor nodes with embedded preprocessing
functions are to be deployed in the field for IoT applications. The same characteristics is required for processor elements embedded in the sensor nodes in satellites to
provide intelligent functionalities in the harsh environment in space. On-demand
data acquisition is also required in addition to periodical data collection to enhance
the value of large amount of data stored in data centers on the Earth. Therefore,
sensor units of satellites are required to accommodate interactive capability for data
manipulation, data selection and data compression. Even though dependability and
intelligent functions are demanded on embedded processor elements used in the
sensor units in satellites, small footprint and reduced power consumption are mandatory for space applications. These requirements have been extracted as the reduction of semiconductor memories used as program memories and configuration
memories. In consequence, atomic switch has been closed up for our new processor
element architecture and control circuitries.
3 Adaptation of Atomic Switch FPGAs to IoT Applications
in Space
We discuss how to adopt atomic switch FPGA to edge computing for sensing
devices in this section. We identified four requirements for a signal processing
system architecture of sensor units. The first requirements are low power consumption and low resources. Eliminating large memory cells reduces power consumption,
footprint, and weight. The target of elimination are configuration memories of
FPGAs and main memory cells of MCUs used to store application program.
Fig. 8 Satellites with smart sensors, (a) AKATSUKI, (b) HAYABUSA2. © JAXA and Akihiro
Ikeshita
Atomic Switch FPGA: Application for IoT Sensing Systems in Space
43
functions are to be deployed in the field for IoT applications. The same characteristics is required for processor elements embedded in the sensor nodes in satellites to
provide intelligent functionalities in the harsh environment in space. On-demand
data acquisition is also required in addition to periodical data collection to enhance
the value of large amount of data stored in data centers on the Earth. Therefore,
sensor units of satellites are required to accommodate interactive capability for data
manipulation, data selection and data compression. Even though dependability and
intelligent functions are demanded on embedded processor elements used in the
sensor units in satellites, small footprint and reduced power consumption are mandatory for space applications. These requirements have been extracted as the reduction of semiconductor memories used as program memories and configuration
memories. In consequence, atomic switch has been closed up for our new processor
element architecture and control circuitries.
3 Adaptation of Atomic Switch FPGAs to IoT Applications
in Space
We discuss how to adopt atomic switch FPGA to edge computing for sensing
devices in this section. We identified four requirements for a signal processing
system architecture of sensor units. The first requirements are low power consumption and low resources. Eliminating large memory cells reduces power consumption,
footprint, and weight. The target of elimination are configuration memories of
FPGAs and main memory cells of MCUs used to store application program.
Fig. 8 Satellites with smart sensors, (a) AKATSUKI, (b) HAYABUSA2. © JAXA and Akihiro
Ikeshita
Atomic Switch FPGA: Application for IoT Sensing Systems in Space
43