①、與玻璃無接觸式定位，能檢測任何玻璃，避免刮花玻璃。

②、更新換代，丟棄老款機械定位設計，避免機械定位磨損后定位不準、與玻璃碰撞后定位不準，參數重新調整等麻煩。

① Non contact positioning with glass, able to detect any glass and avoid scratching the glass.

② Update and replace, discard the old mechanical positioning design, avoid the trouble of inaccurate positioning after mechanical positioning wear, inaccurate positioning after collision with glass, and parameter readjustment.