BEIJING, Sept. 27 (Xinhua) -- The following are the highlights of China's major technology news from the past week:

CHANG'E-4 PROBE

The lander and the rover of the Chang'e-4 probe have been switched to dormant mode for the lunar night after working stably for a 22nd lunar day, according to the Lunar Exploration and Space Program Center of the China National Space Administration.

The Chang'e-4 probe, switching to dormant mode during the lunar night due to the lack of solar power, has survived 630 Earth days on the far side of the moon as of Thursday, and the rover has traveled 547.17 meters.

SPACE-TRACKING SHIP

Space-tracking ship Yuanwang-5 has departed from a port in east China's Jiangsu Province on Thursday for a maritime monitoring mission in the Pacific Ocean.

This is the third voyage of the ship this year. It will spend more than 100 days at sea and is scheduled to return in early 2021.

CITY-LEVEL AI PLATFORM

Based on artificial intelligence (AI) and Internet of Things (IoT) technology, a Chinese tech company will build a city-level intelligent platform, serving areas such as communities, office buildings, supermarkets and parking lots.

Dubbed "AI City," the platform will cover fields including energy, traffic, security, firefighting and retail.

GRID FINS OF ROCKET

Launch of China's Long March-4B rocket from the northwest of the country earlier this week included the use of grid fins to guide and locate fallen debris from the space vehicle more accurately than before.

The grid-fin system started working after the first and second stages separated. It guided the first stage back to landing areas and transmitted flight information to ground stations, narrowing the range of the landing areas by more than 85 percent.

PILOT ZONE FOR SELF-DRIVING VEHICLES

Beijing is planning to build a cloud-based pilot area for self-driving vehicles before the end of this year, marking an important step for the development of intelligent networked vehicles in the capital city.

The pilot zone, to be located in the Beijing Economic-Technological Development Area, also known as E-Town, will cover 60 square km, featuring integrated smart roads, intelligent vehicles, real-time cloud, reliable network and precise maps. Enditem

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