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Xianxingzhe

Xianxingzhe is a engineering topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Xianxingzhe rather than just read about it. In short: Xianxingzhe (Chinese: 先行者; pinyin: Xiānxíngzhě; lit. 'forerunner') is the first bipedal humanoid robot in China, created in 2000 by the Chinese National University of Defense Technology in Changsha, Hunan.[1] The robot, standing 140 cm tall and weighing 20 kg, walks at a pace of two steps per second. It was satirized in Japan, where, known as Senkousha (先行者, Senkōsha), it became an internet phenomenon; one article d…

Xianxingzhe — main illustration
Xianxingzhe — illustration

Key takeaways

  • Xianxingzhe belongs to engineering; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Xianxingzhe to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Xianxingzhe from memory before moving on to harder problems.

Reference excerpt

Xianxingzhe (Chinese: 先行者; pinyin: Xiānxíngzhě; lit. 'forerunner') is the first bipedal humanoid robot in China, created in 2000 by the Chinese National University of Defense Technology in Changsha, Hunan.[1] The robot, standing 140 cm tall and weighing 20 kg, walks at a pace of two steps per second. It was satirized in Japan, where, known as Senkousha (先行者, Senkōsha), it became an internet phenomenon; one article described the protruding joints near the robot's crotch as a "cannon", resulting in internet games based on the concept.

Development China's robotics research began during the 1980s, and their resources at the time were primitive compared to other countries'. Nonetheless, the National University of Defense Technology was determined to make a robot for China, after seeing Japan's and America's robots in the Expo '85 world fair in Tsukuba, Japan. On 31 December 1987, the Chinese robot's legs were successfully programmed. By 1989, the team moved onto the robot's synchronization of the hands, nervous system, and visual sensors, thus steering the project into the direction of making a humanoid robot. On 29 November 2000, the robot was complete, and the team named it "Xianxingzhe", meaning forerunner, as the robot was hailed as a major technological breakthrough in China.

Parody Though a significant advance in robotics in China, the robot was also known for the spoof that was made on it. On 3 March 2001, the Japanese website Samurai Damashii (侍魂) posted a page[2] ridiculing the Senkousha (Japanese reading of the Chinese characters for Xianxingzhe) in response to the Chinese enthusiasm. In that page, Samurai Damashii exaggerated the Senkousha as "the crystallization of China's four thousand years of scientific knowledge", commented on the crude design (e.g. the "Chinese cannon" (中華キャノン, Chūka-kyanon) on its crotch), and put its image among images of Honda's ASIMO and Sony's QRIO SDR-3X for juxtaposition. Later, in a separate article, the site "revealed" that the Senkousha was actually a military weapon, and elaborated on the protruding joint on the robot's crotch. According to the page, the Senkousha would first rattle the ground with its feet to stir the energy resting on the ground, then it will do squats to harness that energy and transfer them to its crotch cannon, then finally fire that energy in a massive white beam with a pelvic thrust. In conclusion, the author of the article expressed his worries about world peace, seeing the destructive power that the robot possesses (including the ability to make people die laughing). With the article, Samurai Damashii exceeded 10,000 pageviews per day, which is rare in personal webpages. It was said that a peak level of 200,000 pageviews per day was recorded. (In Japan, in the past, a personal webpage with 1,000 pageviews per day was considered successful. Now, because of Senkousha, that standard has risen to 10,000.) The articles officially started the Senkousha craze in Japan, and later Taiwan.

Influence The Senkousha craze quickly spread into Japanese internet forums like 2channel, achieving meme stature. Using the plot from the games, fans even wrote a theme song for Senkousha, and subsequently used the song to make a fake tokusatsu opening animation[3], spreading the meme even further. Other appearances include:

Netrunner, a Japanese magazine, quick to respond to internet culture, made models of the Senkousha for sale.[4] The magazine also featured Senkousha in its anime OVA, Netrun-mon. Hyper Octagon Station, a dōjin circle, created a 3D Senkousha online game, with robots dueling each other in the Yokohama Chinatown. The robot is depicted in the anime Puni Puni Poemy dancing past the Aasu's house. In the anime and manga Yakitate!! Japan, Azuma and Kawachi thought of a robot that looked similar to the Senkousha when told that they are only bread-making machines. In episode 14 of Ghost in the Shell: Stand Alone Complex, there is an android related to the Chinese mafia named Pioneer which has a cannon protruding out of its groin area. In the first episode of Negima!?, a model of Senkousha is seen standing on Chao Lingshen's desk. In the twenty-third episode of Rizelmine, Lan-lan, the artificial human from China is seen riding on top of a robot who looks like Senkousha during the chase scene. Norikuni Iwata from Excel Saga received a Senkousha figurine from his co-worker, Daimaru Sumiyoshi, out of pity in Volume Eight of the manga. It appears on pages 76 and 83 of both the Japanese and American version. A modification called Parallel Worlds for Battlefield 1942 features the Senkousha as an operable vehicle, complete with crotch mounted cannon. In episode 3 of R-15, there is a robot with a crotch drill in one of Takuto's day dreams.

References ^ Xinhua News Agency. The forerunner advances to a new century Archived 2011-09-26 at the Wayback Machine People's Daily. November 30, 2000. URL accessed September 1, 2007. (in Chinese) ^ Article by Samurai Damasii Archived 2006-02-05 at the Wayback Machine (in Japanese) ^ Second article by Samurai Damasii Archived 2006-02-08 at the Wayback Machine(in Japanese) ^ Senkousha game 1, Senkousha game 2 (in Japanese) ^ The fan-made tokusatsu opening animation ^ "Senkousha as a plastic model? (「先行者」がプラモに?)". ITMedia. 2002-05-29. (in Japanese)

External links National University of Defense Technology (in Chinese)

Worked examples

Example 1 — a first encounter with Xianxingzhe

Start with the simplest possible case. Write down what Xianxingzhe claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Xianxingzhe before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Xianxingzhe ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Xianxingzhe

In research
Xianxingzhe appears in engineering research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Xianxingzhe in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Xianxingzhe is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2000 robots, Bipedal humanoid robots, Historical robots, so understanding it makes those chapters shorter.
In everyday life
Look for Xianxingzhe outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Xianxingzhe in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Xianxingzhe means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Xianxingzhe out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Xianxingzhe in simple terms?

Xianxingzhe (Chinese: 先行者; pinyin: Xiānxíngzhě; lit. 'forerunner') is the first bipedal humanoid robot in China, created in 2000 by the Chinese National University of Defense Technology in Changsha, Hunan.[1] The robot, standing 140 cm tall and weighing 20 kg, walks at a pace of two steps per secon…

Why does Xianxingzhe matter?

Because it connects several engineering ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Xianxingzhe?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Xianxingzhe.

Tags

  • 2000 robots
  • Bipedal humanoid robots
  • Historical robots
  • Internet memes
  • Robots of China

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