The calling model of construction lifter on different floor in high building construction scenario is presented for workers’conveniently entering lifter and safe operation of construction hoist.The encoding and decoding for calling is proposed and the calling and locking instrument is developed.The 315 MHz frequency is used in the wireless sensor networks（WSNs）.The system is composed of multi-calling devices and the central receiving device

the lifter’s stop floor is dependent on the calling order and its current floor.The self-locking of floor doors are achieved by the WSNs-based instruments.The experimental results show that the calling model is effective with very low error bits

calling distance can reach 300m.Self-locking of floor door is achieved and safe construction is guaranteed.