3.2 Sensor technology
Sensor technology is used to perceive unknown working environment. Due
to the clear division of labor in the construction industry, the
research and development of targeted construction robots need sensors
with different functions, such as pressure sensors, visual sensors and
voice-controlled sensors. The force required by the plate installation
machine to clamp the plate needs to be precisely controlled. N.Sakoda et
al. (2012) developed an absolute pressure sensor based on PVT phase
characteristics and Burnett method. After testing, the maximum pressure
can reach 100 MPa. Robot vision is equivalent to human ”eyes”, and its
technology plays a very important role in robot movement. Samad et al.
(2017) implemented a dynamic lightweight vision sensor network based on
background subtraction technology and image restoration technology to
achieve a short transition delay in robot detection. Voice-controlled
sensors can control robots through human language. Budiharto et al.
(2017) developed an educational robot based on voice-controlled sensor
technology based on language recognition module, with an average correct
recognition rate as high as 73.3%.