Hitachi Ltd. said on March 7 it has developed a robot (in handout photo) that moves indoors negotiating its way around obstacles and uses a surveillance camera to take images. The robot, which measures 57 centimeters high and 50 cm wide and weighs 33 kilograms, is powered by a battery to travel at a speed of one kilometer per hour on two tire wheels. The company said the robot can detect more things as compared with one with a surveillance camera fixed onto one spot. (Kyodo)