The road condition of robot dog patrol application is complex, which is easy to lead to the internal connector loose in the rugged road condition of mountain road, affecting the operation. LC series connectors adopt the straight insert design, lock automatically when matching in place, self-locking force is strong, buckle design, so that the product has high seismic performance, can easily cope with high-frequency vibration within 500HZ. Avoid falling off and loosening caused by high frequency and large vibration, avoid circuit breaking, poor contact and other risks, to ensure the normal operation of intelligent equipment.