Hob wear image identification and measurement method, hob detection system and shield tunneling machine

The invention discloses a hob wear image identification and measurement method, a hob detection system and a shield tunneling machine, the hob wear image identification and measurement method comprises the following steps: establishing a hob wear prediction model Y = F1 (T) + F2 (P) + F3 (V) + F4 (N) according to the obtained total thrust T, penetration P, cutterhead speed V and cutterhead torque N of the shield tunneling machine, wherein F1 (T) is a total thrust formula, F2 (P) is a penetration formula, F3 (V) is a cutterhead speed formula, and F4 (N) is a cutterhead torque formula; when the Y value of the hob wear prediction model is greater than a preset wear value, acquiring a hob image of the hob; obtaining the actual outer edge of the hob according to the hob image; and according to the difference value between the actual outer edge and the theoretical edge, obtaining the calculated abrasion loss of the hob. 本发明公开了一种滚刀磨损图像识别测量方法、滚刀的检测系统和盾构机，滚刀磨损图像识别的测量方法包括：根据获取到的盾构机的总推力T、贯入度P、刀盘速度V和刀盘扭矩N建立滚刀磨损预测模型Y＝F1(T