Abstract
To save the labor, a robot was developed for harvesting strawberry grown on table top culture at low cost which can work fleetly and accurately. First of all, the exposure level of fruits was investigated. From the result, the exposure level of fruits was higher than that of the passage side when seeing from the planting bed side. Then, a new harvesting robot was examined about the mechanism approached from the planting bed side. In addition, this harvesting robot consisted of three compact color sensors and an ultrasonic range sensor without CCD camera. From the recognition experiment of the harvest target fruits, the fruits of the harvest proper time were able to be judged according to the number of color sensors which detected red tinge. The result of this experiment indicated the possibility of the harvesting robot without visual sensor.
