Semtech LoRa 長距離無線技術(shù)連接壓力傳感器(Force-Sensitive Resistor) Sensor溫度濕度傳感器,壓力傳感器(Force-Sensitive Resistor),顧名思義,加諸不同的力量(擠壓、重量),便會得到不同的電阻,進(jìn)而改變模擬輸入腳位所讀取到的電壓值,做為偵測信號.可用于販賣機(jī)飲料售出總數(shù)量監(jiān)測, 以及貨物總數(shù)量監(jiān)測. 如販賣機(jī)應(yīng)用可減少人力巡查補貨己及大數(shù)據(jù)的收集了解每個區(qū)域地方人們的消費喜好.
? 核心技術(shù)優(yōu)勢
使用 LoRa 長距離無線技術(shù)可長距離監(jiān)測商品銷售,以及長距離監(jiān)控貨物是否有減少及遺失.
? 方案規(guī)格
SX1276(Node)特點:
LoRaTM Modem
168 dB maximum link budget
+20 dBm - 100 mW constant RF output vs. V supply
+14 dBm high efficiency PA
Programmable bit rate up to 300 kbps
High sensitivity: down to -148 dBm
Bullet-proof front end: IIP3 = -11 dBm
Excellent blocking immunity
Low RX current of 9.9 mA, 200 nA register retention
Fully integrated synthesizer with a resolution of 61 Hz
FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulatio
Built-in bit synchronizer for clock recovery
Preamble detection
127 dB Dynamic Range RSSI
Automatic RF Sense and CAD with ultra-fast AFC
Packet engine up to 256 bytes with CRC
Built-in temperature sensor and low battery indicator
方案來源于大大通。