'Robot traffic police' put on duty in North China

Chinese box office sales hit 5.1 bln yuan in March 'Ready Player One' leads foreign titles in China cinemas Brainpower helps ease the route for wheelchair users AI powers the way for improved lives Lunar rover sleeps after record travel Chinese space startup to send heavy satellite 'Robot traffic police' put on duty in North China Science parks, institutes in Tianjin boost BTH integration TV program looks at Chinese students abroad Innovation takes place of agriculture Reusable rocket completes third test Chinese, US scientists develop cockroach-inspired soft robot AI tailors teaching plans for students China promotes sharing of sci-tech resources in Yangtze River Delta Hollywood gets wakeup call from China's box office Panorama section of Beijing International Film Festival begins Shanghai scientists make new discovery China encourages foreign sci-tech entrepreneurship Research opens up stem-cell potential