基于蓝牙的NTC温度检测仪

NTC Temperature Detection System Basedon Bluetooth

目前市场上进行NTC温度测量的产品大多通过绑定的MCU进行固件化测量,如果需要进行蓝牙传输,则需要另外加入一块蓝牙芯片。但是,这种方式既不经济也加大了功耗,不是一种合理的解决方案。文章提出了一种基于蓝牙的NTC温度检测仪,该系统基于蓝牙芯片CH57X,在芯片上直接进行开发,外围电路简洁,配合手机APP可以显示最终温度。该系统采用了低功耗的电路设计,通过降低AD采样的功耗,以及降低信噪比来进行蓝牙通信的有效传输,在提高传输效率的同时,降低功耗。系统适应性强,扩展性好,对比市场上已有的产品,具备很大的优势。

At present,most NTC temperature measurement products on the market are firmware measurement by binding MCU.If bluetooth transmission is required,another bluetooth chip is needed.However,this approach is not a reasonable solution because it is not economical and increases power consumption.This paper proposes a Bluetooth-based NTC temperature detection system.The system is based on bluetooth chip CH57 X,which is directly developed on the chip.The peripheral circuit is simple,and the final temperature can be displayed with mobile APP.The system uses a low power circuit design,through reducing the power consumption of AD sampling and reducing the signal-to-noise ratio to effectively transmit bluetooth communication,while improving transmission efficiency,reduce power consumption.The system has strong adaptability and good expansibility.Compared with existing products on the market,it has great advantages.