Set motion, light perceived as one of the functions of the robot driving thin

In recent years, the search for living organisms respond to complex motion mechanisms to promote the research and development of software robots. Compared to traditional hard-robot, a flexible material, soft matter materials software robot demonstrated a continuous deformation of the body and complex movement patterns, but also provides a variety of safe operation interface for human-computer interaction. However, current research focuses on the control of drive deformation, movement patterns, the development of robots have limited or no awareness of self and environment, which hinders the further development of sophisticated artificial intelligence for robots. To give small size software robot perception, the biggest challenge is to achieve a highly integrated sensing, drive mechanism. 集运动、感知功能为一体的光驱动薄膜机器人 Based on the above background, the National University of Singapore Professor Ghim Wei Ho issue group developed An optical film drive robot wherein a thickness not exceeding 115 μm composite film compact integrated piezoresistive strain sensor, a pyroelectric temperature sensor, and an optical drive, and a separate sensor electrode design such that the film robot may output a deformation of the body in synchronization with continuous motion and temperature signal, the mechanism shown in Figure 1 design.

集运动、感知功能为一体的光驱动薄膜机器人
FIG. 1. The structure of the thin film composites and integrated piezoresistive strain sensing, and the schematic view of the thermoelectric temperature sensing mechanism for an optical drive.

Researchers using 3D printing and paper cutting, to achieve the programmed design complex and diverse driving 2D to 3D deformation, different customized robot model and selectively printing a resistive sensor circuit, the robot model size may be as small as 1cm, as shown in FIG. 集运动、感知功能为一体的光驱动薄膜机器人

集运动、感知功能为一体的光驱动薄膜机器人
Figure 2. The small-sized paper cutting robot model.

Furthermore, the researchers designed three robot models, including walking robot, anthropomorphic hand model and no wiring centipede, showing the movement and perceived performance of software robots can be customized in different application environments. Forward walking robot may continue under control of light, and its own real-time output signals of various gait, the body comprises a curved extension, speed step size, and a position holding state tripped over an obstacle and the like. Further, by analyzing the different roughness of the substrate in the robotThe surface roughness resistance variation waveform information, we can get the substrate (FIG. 3) – the travel time. Monitoring gait walking robot and a road surface roughness analysis

集运动、感知功能为一体的光驱动薄膜机器人
3. FIG. a) the robot on the weighing paper substrate as well as duration of action before the respective resistors, a voltage signal; b) a filter paper robot walking time – acceleration resistance change curve; c) rms acceleration resistance change with the substrate different substrates relationship between surface roughness.

having a hand model real dimensions and proportions of the hand, fingers can flex independently of each activity, the corresponding signal change in the resistance of the motion information; cold When a finger touches the external object, as the temperature changes of the pyroelectric voltage shock occurs; Furthermore, under the same driving conditions of light, with the index finger and thumb to squeeze objects of different hardness of the same size, the size of the change in resistance index finger can be well distinguished by the relative softness of several materials ( As shown in Figure 4).

集运动、感知功能为一体的光驱动薄膜机器人
Figure 4. Model Quasi hand. a) Hand model and an optical drive middle finger bent; b) different fingers bent, the resistance change reply; c) the index finger and out of contact hot cup (60 ℃) and cold cups (0 deg.] C) the voltage change; D) index finger and thumb in the light driven sponge kneaded; E) of the finger pinch variable resistance material different hardness.

Finally, Near Field Communication (NFC) technology , we try to remove the electrode wiring film robot to achieve a model without a wired connection centipede crawling forward, turn around, and centipedes sensitive antennae wirelessly sensing the light intensity, wind speed and human touch signal, as shown in FIG 5.

集运动、感知功能为一体的光驱动薄膜机器人
Figure 5 without a wired connection centipede NFC wireless sensing light intensity, wind speed and human touch.

more work \”Somatosensory, Light-Driven, Thin-Film Robots Capable of Integrated Perception and Motility\” in the title, published online in the journal Advanced Materials . The first author of the paper for the Dr. Wang Xiao Qiao , corresponding author for the Ghim WeiProfessor Ho , the communication unit of the National University of Singapore. The full text link: https: //doi.org/10.1002/adma.202000351

相关新闻