Tag: ‘Robot’

Edo-period “robot” returns to life in Japan

30 Jan 2006

In a reference to Doraemon, Japan's most famous animated robotic cat, a Chinese person once remarked: "Lazy is the person who relies on robots in times of need." Though there may be some truth to the statement, it ignores Japan's long-held notion that robots (and their animated counterparts, such as Doraemon and Astro Boy) exist primarily to bring happiness to humankind. Many suggest that the development of robot manufacturing in Japan is built upon the strength of this affection.

The affection toward robots can be traced back to the karakuri mechanical dolls of the Edo period. One such doll is the mechanical "calligraphy writing doll," considered a masterpiece of karakuri craftsmanship. Recently returned to Japan after a long absence, the doll was constructed more than 150 years ago by Tanaka Hisashige, who is often referred to as the "Edison of Japan" and who served as a technical advisor for the Nabeshima feudal domain.

KarakuriThe "calligraphy writing doll" resembles a young man holding a brush in his right hand. With a series of movements fully controlled by precise automatic mechanisms, the young man dips his brush into ink and draws the kanji character for kotobuki ("blessing" or "longevity") on a sheet of paper in front of him. When finished, he seems to display a look of satisfaction to his onlookers.

Science historian Higashino Susumu (55), who recently succeeded in his 13-year effort to persuade a wealthy American collector to sell the prized karakuri back to Japan, is amazed by the sophistication of the restored doll. Mechanical dolls capable of writing were also made in China and Europe, but unlike this Japanese masterpiece, their pens had to be dipped in ink beforehand or they only moved from the elbow down -- thus, they remained confined to the realm of crude puppetry. Hisashige imbued his creation with a sense of reality, such as in the human-like way he follows the brush stroke with his eyes as he writes. "Hisashige's aim was not to create a doll, but to create a human," says Higashino.

This uncompromising precision in Hisashige's work embodies the manufacturing spirit that has underpinned the development of postwar Japan. Later in life at the age of 75, after the Meiji Restoration, Hisashige founded the engineering company that would later become Toshiba. And so it was, the Japanese manufacturing industry had its beginnings in Edo craftsmanship that was uniquely Japanese.

(The "calligraphy writing doll" is currently on display at Edo-Tokyo Museum through February 5, 2006. Regular demonstrations are held several times daily. A collection of 40 other karakuri is also on display.)

Check out the Youtube video of the calligraphy writing doll in action.

[Sources: Mainichi Shimbun, Edo-Tokyo Museum]

AIST develops autonomous humanoid robot

24 Jan 2006

On January 23, the National Institute of Advanced Industrial Science and Technology (AIST) in Tsukuba, Ibaraki unveiled its HRP-2 humanoid robot equipped with a new system that enables autonomous self-directed operation. The robot demonstrated the ability to respond to spoken human commands by retrieving a can of juice from a refrigerator and bringing it to the person who requested it.

The robot?s head is equipped with improved cameras, which serve as eyes, and it incorporates a system that enables it to perceive its environment, remove any obstacles it encounters along the way, and self-correct its direction if it strays off course.

At the demonstration, a person seated at a table instructed a robot to bring him some juice. The robot communicated the command to a second robot, which then walked to the refrigerator, moving chairs out of the way as it proceeded. It opened the door of the refrigerator, retrieved a can of juice, and brought it back to the table. A third robot was responsible for mapping the room. Data was exchanged between the three robots via wireless LAN.

The institute would like to integrate these functions into a single robot to create a machine that can provide assistance in real-life situations.

[Source: Asahi Shimbun]

Delicate robot hands demonstrated

11 Jan 2006

A consortium of Kyushu-area businesses, including robot developer TMSUK (Kitakyushu), has developed a compact robot hand. In Fukuoka on January 9, a robot equipped with the hands demonstrated its dexterity by scooping candy into bags.

Each hand features three fingers, 20 cm (approx. 8 inches) long when measured from the controller located in the palm to each fingertip, and each finger is equipped with three motors at its joints. Yasukawa Electric, which participated in developing the hand, boasts that it is the world?s smallest.

The dream of developing robots for domestic use or for electronic product assembly is growing. However, the production cost for a pair of hands is equivalent to that of a luxury automobile. Lower costs should open the door to a wide range of business opportunities.

[Source: Asahi Shimbun]