無線通訊傳輸技術加上感測器的主要設計概念在於幫助父母出外遊玩時除了手推車上的扣環可扣住嬰幼兒保護安全，還可監測嬰兒的安全，因為一旦家長分心於其他事務如自顧著逛街、聊天、採買東西時，陌生人只要能熟練地解開扣環就可將嬰幼兒給偷偷抱走，如何在家長分心時還能透過即時的偵測幫助家長馬上做出反應及提高警覺，是此研究的目標。
本篇論文的目標為利用nRF24LE1晶片此晶片內含射頻收發器及相容8051地微處理器，來設計傳送端和接收端；第一部份傳送端可透過射頻收發器去控制接收端系統的運作，第二部份在接收端其微處理器會利用中斷地方式來接收感測器線路所產生的中斷源，並由內部產生PWM訊號驅動蜂鳴器產生警示音，同時再透過射頻收發器回傳警示訊號給傳送端。

The major design concept for the combination of the wireless communication technology and sensor is primarily to help the parents monitor and ensure their baby’s safety aside from the help of the stroller buckle while they are out with the baby as the stranger can easily and quickly unbuckle the baby and snatch the baby away when the parents are busy with shopping, chatting, etc. Thus, how to help the parents stay alert and respond immediately through the help of the real-time monitoring is the goal of this study.

The goal of this research is to utilize the in-built RF transceiver and 8051-compatible microprocessor from nRF24LE1 to design 2.4GHz transmitter and receiver boards. The transmitter can control the way the receiver works by using 2.4GHz wireless technology and the microprocessor of the receiver would use the interruption to receive the “interrupt source” from the sensor circuit, and the system would generate a PWM signal to drive the buzzer to generate the warning sound, then send the warning signal back to the transmitter through 2.4GHz wireless technology.

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