Semtech launched Lora edge, a geolocation solution for the Internet of things, and the first chip lr1110 is now on the market

2020 year 7 month 30 Japan ,2020 LoRa The Innovation Application Forum was held in Shenzhen , As LoRa The creator of Technology 、LoRa Suppliers of chips and advanced algorithms Semtech Corporation（ hereinafter referred to as “Semtech”） Announced launch based on LoRa Geolocation solutions for low-power platforms LoRa Edge, It will provide a diverse portfolio of applications for indoor and outdoor asset management , Mainly for Industry 、 building 、 Home Furnishing 、 Agriculture 、 Transportation, logistics and other application fields .Semtech LR1110 Is the first one based on LoRa Edge Technology chips .

At present, there are many kinds of positioning technologies in the market , such as WiFi location 、GPS location 、 Cellular base station positioning 、UWB wait , But these positioning technologies have BOM Expensive 、 Too many components 、 The security scheme is expensive and consumes too much power . This also makes these positioning technologies not applicable to many costs 、 The demand of power sensitive Internet of things applications .

And this time Semtech Derived from LoRa Edge Positioning technology LR1110 chip , The innovative addition of low-power Wi-Fi Passive scanning 、 Multiple constellations GNSS Scanner and other technologies , Combine easy-to-use and cost-effective LoRa Cloud Geographic location and equipment management services , It can significantly reduce the cost and complexity of using the Internet of things to locate and monitor assets .

Usually every wireless WiFi There is a unique one in the world MAC Address , And generally speaking, wireless WiFi It won't move for a period of time , The device is on WiFi Under the circumstances , You can scan and collect the surrounding WiFi The signal , Encrypted or not , Is it connected , Even the signal strength is not enough to show up in the wireless signal list , You can get WiFi It's on the air MAC Address . These devices will be able to identify specific WiFi Send the data to the location server , The server retrieves each WiFi The geographical location of , And combine the strength of each signal , Then we can calculate WiFi The geographical location of the device and return to the user device . This is it. WiFi The principle of positioning .

LR1110 Because of the addition of Wi-Fi Passive scanning function , So that it can find Wi-Fi b/g/n The signal of , Extract the location of equipment MAC Address , Capture and demodulation include MAC Address information WiFi Data packets , But there is no need to transmit signals like active scanning , Therefore, power consumption can be saved to a great extent . meanwhile LR1110 What will be extracted MAC Address through LoRa Send it to the cloud for Wi-Fi Location lookup service , Thus further reducing local power consumption .

LR1110 Built in multiple constellations GNSS The scanner can capture some satellite broadcast signals , Then aggregate the signal to NAV Message and send it to ECS , To get the location information . According to introducing ,LR1110 Built in multiple constellations GNSS Scanner support GPS L1 GPS Geostationary satellite positioning . The current trend of global development is SBAS System （ A regional wide area differential enhancement system using geostationary satellites ） There are mainly ESA receiving satellite navigation systems (EGNOS)、 Raytheon's wide area enhancement system (WAAS)、 Multifunctional satellite enhancement system in Japan （MSAS）, The three have fully compatible interoperability .LR1110 Built in multiple constellations GNSS The scanner can support EGNOS WAAS location . Besides ,LR1110 Multiple constellations GNSS The scanner also supports Beidou B1 Beidou geostationary orbit GEO/IGSO location .

Again ,LR1110 Multiple constellations GNSS The scanner only gets satellite data , Not like many GPS Locate the device to process data locally , Instead, the data is sent directly to the cloud for processing , This reduces power consumption . meanwhile LoRa The base station can also send messages to LR1110 Provide assistance parameters , For example, the initial position of the equipment is roughly estimated 、 current time 、 Compensated reference frequency error 、Almanac The latest version of , So as to improve the accuracy of positioning . And the relevant is LPWAN custom LR1110 Information can also reduce throughput and power consumption .

Thanks to the LoRa The distance that the network itself has in wireless transmission 、 The advantages of low power consumption , Plus LR1110 Low power positioning technology added （Wi-Fi Passive scanning 、 Multiple constellations GNSS Scanner, etc ）, It also makes LR1110 At the overall cost 、 The power consumption is much lower than GPS/WiFi Chipset , Although the positioning accuracy is lower than GPS/WiFi Chipset , But for the vast majority of IOT devices , Its positioning accuracy reaches meter level is enough .

LR1110 Specific parameters ：

Multifunctional RF front end

• Cover 150-2700 MHz Continuous frequency synthesizer
• Global positioning system （GPS）/ Beidou satellite navigation system signal scanning
• Wi-Fi Passive scanning

low power consumption LoRa /（G）FSK RF transceiver

• 150 – 960 MHz Global band support range
• 22 dBm High power amplifier （PA） passageway
• 15 dBm The high efficiency PA passageway
• And LoRaWAN Standards are fully compatible

Encryption engine

• Hardware support is based on AES-128 encryption / Decryption algorithm
• Handle DevEUI and JoinEUI And other equipment parameters
• Protect confidential information such as encryption keys
• according to LoRaWAN Standard storage NwkKey、AppKey

Semtech Wireless director of Internet of things in wireless and sensing products department Pedro Pachuca say ：“Semtech Continuous introduction can simplify and accelerate low-power Wan （LPWAN） Internet of things solutions developed by application .LoRa Edge and LoRa Cloud Geographic location services support customers to develop ultra-low power applications for various industries , And will expand LoRa Application scope in the ecosystem of the Internet of things .”

according to Cisco The prediction of , In the next decade , As institutions continue to shift to business strategies that focus more on the Internet of things , There will be global 5000 Million devices connected to the Internet , Most of these IOT devices are installed , Or does it need some form of positioning function throughout the asset life cycle .LoRa Edge Geolocation platforms will enable solution providers to take full advantage of LoRa Unique positioning function , And single chip solutions GNSS and Wi-Fi Scanning function , So as to support customers to choose the best positioning tool for the application tasks they are dealing with .

Because there is no need to add GNSS and Wi-Fi device ,LoRa Edge Reduce the bill of materials of equipment （BOM） cost , And significantly reduce the complexity of design and procurement . By adding LoRa Cloud Geographic location services , And provide easy-to-use and cost-effective arrival time difference （TDOA） data 、GNSS And based on Wi-Fi Cloud location computing capabilities , Thus, the power consumption demand of the device is greatly reduced , And improve the efficiency of asset management ; and LoRa Edge Enable customers to further manage total cost of ownership （TCO）, Customers only pay when they need to locate assets . The first-class key and secure connection addition process configured during chip manufacturing further simplifies the development of Internet of things solutions , It appropriately meets the strict requirements of customers for security .

What needs to be pointed out here is , at present LoRa Edge and LoRa Cloud Geolocation services need to be connected to Semtech Server for location data processing , And this service needs to be charged . Of course ,Semtech At present, it is also planning to open to other cloud location service providers , meanwhile LoRa Edge Developers can also build their own cloud location servers .

According to the Semtech According to , The first one for geolocation applications LoRa Edge Chipset （LR1110） Now available , More products of this product series will be available in 2020 Released in succession in .

edit ： Smart core - Ranger sword