Left: DEEP Robotics' X30 robot dog makes its way down a pedestrian walkway in Hangzhou. Right: A robot is on hand to help customers at a bank in the Asian Games' Main Media Centre.

Left: A 'Digital Human Interaction' screen answers queries at the Games' Main Media Centre. Right: A Rokid employee demonstrates the Hangzhou-based company's augmented reality helmet.

HANGZHOU, Zhejiang province — From autonomous bug zappers to android pianists and driverless ice-cream trucks, machines have taken over — at least at China's Asian Games.

The Games opened Saturday after a one-year delay because of the pandemic with about 12,000 athletes and thousands of journalists, technical officials and spectators descending on Hangzhou.

The city is the unofficial home of China's tech industry, so robots and other mind-boggling gadgets are set to serve, amuse and police visitors.

An automated mosquito trapper roams the vast Games Village, zapping the pests after luring them in by mimicking a human's body temperature and "breathing".

Robot "dogs" that can run, jump and flip over patrol power-supply facilities. Smaller versions dance, while a bright-yellow android plays the piano.

Driverless minibuses are set to shuttle visitors through the nearby city of Shaoxing, where the baseball and softball venues are located.

Athletes can put their reflexes to the test against a table-tennis playing "Pongbot".

At the massive media center, a blushing plastic-and-metal receptionist with a number pad and card slots built into its torso greets customers at a makeshift bank.

Even venues were built with the help of construction robots which organizers say are "very cute, with unique skills".

Summing up how keen China is to push the theme at the Games, the mascots are three humanoid robots — Congcong, Lianlian and Chenchen, whose smiling faces adorn massive signs across Hangzhou and other nearby host cities.

Dog meets 'dog'

Hangzhou, a city of 12 million people in China's east, has built up a reputation as a home for tech startups.

That includes a thriving robotics sector eager to close the gap on industry-leading rivals in countries such as the United States and Japan.

At a business park, staff from DEEP Robotics put some of their most advanced models through their paces, commanding one four-legged bot to walk through construction rubble and sending another up a nearby pedestrian bridge slick with rain.

At one point, a real dog turns up and sniffs its robotic equivalent curiously.

Elsewhere, office workers pick up lunch from vending machines that can steam the food and, according to maker Kuaie Fresh, check the temperature so the meal is just right.

The machine also collects data on customer preferences.

"Its cooking skills are better than most people who don't know how to cook," said Hu, 29.

A global race to push the limits of artificial intelligence brought AI-enabled humanoid robots to a UN summit in July, where they claimed they could eventually run society better than humans.

"I wouldn't say that robots will replace humans, but rather they are a tool, and they will help humans," Qian Xiaoyu, a DEEP Robotics executive, told AFP.

A temperature-taking robot has been lined up to take people's temperatures and report if they showed signs of a fever.

It can also remind visitors to wear a mask.