“…These works are applied research with problem solving nature for performing risky tasks to prevent threats to human health in unstructured outdoor environments. Some of these robots can be mentioned such as robot for nuclear radiation detection (Christie et al, 2017; Gabrlik et al, 2021; Miller et al, 2015; Oka & Shibanuma, 2002; Oomichi et al, 2007; Qian et al, 2012), fire‐fighting robot (Miyazawa, 2012; Pack et al, 2004; Wang et al, 2017), robot for urban search and rescue (Bishop et al, 2005; Enayati & Najafi, 2011; Habibian et al, 2021; Hirose & Fukushima, 2012; Kamegawa et al, 2011; Kamegawa et al, 2020; Li et al, 2009; Masuda, 2012; Matthies et al, 2002; Park et al, 2012; Zhang et al, 2006), cleaning robot for large diameter sewers (Walter et al, 2012), rescue robot for nuclear sites (Guzman et al, 2016; Hosoda et al, 2002; Nagatani et al, 2013), search and rescue robot for coal mines (Wang et al, 2014; Zhai et al, 2020), robot for sampling and radiological characterization in nuclear fields (Ducros et al, 2017; Kobayashi et al, 2012), robot for inspection and monitor of nuclear facilities (Bird et al, 2019; Fulbright & Stephens, 1995; Isozaki & Nakai, 2002; Yuguchi & Satoh, 2002), military rescue robot for casualty extraction task (Choi et al, 2019) and rescue robot for explosion accidents in coal mines (Li et al, 2020). A general unified outcome has been gained by the former cited research indicates existence of limitations for application of various types of sensors and actuators in robot development based on nature and magnitude of hazards (Morris et al, 2006).…”