Jump detection device

The purpose of the present invention is to obtain a step detection device capable of accurately detecting a step without being affected by weather, environmental conditions, or the like. This step detection device (2) detects a step when a tire (10) of a vehicle (100) climbs up a step (20), and is provided with: a plurality of strain detection elements (1) disposed on the inner circumferential surface of the tire at predetermined intervals in the circumferential direction of the tire; and a signal processing device (4) that processes detection signals of the plurality of strain detection elements. The signal processing device detects a step on the basis of detection signals of two or more strain detection elements that are adjacent to each other among the plurality of strain detection elements. 本发明的目的在于获得一种能准确地检测阶差而不受天气或环境条件等影响的阶差检测装置。本发明的阶差检测装置(2)是一种在车辆(100)的轮胎(10)爬上阶差(20)时检测阶差的阶差检测装置(2)，具有：多个应变检测元件(1)，它们沿轮胎的圆周方向隔开规定间隔而配置于轮胎的轮胎内周面；以及信号处理装置(4)，其处理多个应变检测元件的检测信号。信号处理装置根据多个应变检测元件当中相互相邻的2个以上的应变检测元件的检测信号来进行阶差的检测。