DEVICE AND METHOD FOR DETECTING COLLISION

A collision detection device includes a collision detection unit and first, second, and third acceleration sensors which are installed at different positions of the object whose collision is to be detected. The collision detection unit calculates predicted acceleration of the third acceleration sensor based on measurement information obtained by the first acceleration sensor and the second acceleration sensor, compares the predicted acceleration with a measured acceleration measured by the third acceleration sensor, and detects whether a shape of the object has been deformed or not.