It is safer to prevent the cliff from falling: the sensitivity of the anti-falling sensor is full, which can accurately identify the stairs and the high-low drop area, brake and turn back in time to avoid the machine falling and damage, and is suitable for the use of multiple floors. Sensitive identification of obstacle materials: replacing the sensor of the sweeping robot can accurately distinguish sundries, flexibly bypass all kinds of household obstacles, and will not jam, get stuck or stop halfway to report an error. Repair the intelligent error correction function of the machine: the long-term dust accumulation and aging of the sensor of the sweeping robot will lead to the system judgment error, and the replacement of accessories can restore the intelligent recognition ability of the machine and repair all kinds of abnormal cleaning failures. Reduce the failure rate of the machine: the sensor is the core inductive component of the sweeper, which is easy to trigger various fault codes due to aging. Regular replacement can reduce the system error and the jam, and make the machine run more stably. Low-cost recovery of the whole machine performance: the cleaning performance of the machine can be recovered only by replacing the sensor without replacing the whole machine equipment, and the cost performance is super high, which greatly prolongs the overall service life of the sweeping robot.