LORD TECHNICAL NOTE

  • By Scott
  • /
  • Published Fri, 09/15/2017 - 08:59

LXRS and LXRS+

Wireless Sensor Protocol

Using LXRS and LXRS+ For Long-Term Monitoring and High Bandwidth Test and Measurement Introduction

LORD Sensing has developed and deployed two communication protocols for sending data from networks of wireless sensors. These protocols, labeled LXRS and LXRS+, feature node-to-node synchronization of 50 us, lossless data throughput, and unmatched wireless sensor network data throughput. These functions are accomplished while maintaining low power requirements required for long battery life.

LXRS and LXRS+ are unique because they were created specifically for applications such as flight test and heavy machine monitoring, which require large amounts of raw sensor data and synchronization between nodes, without losing data. The differentiating factor between the two protocols is that LXRS+ sacrifices communication range in favor of a four times larger network bandwidth. In the following sections, we explore the methods used by LXRS and LXRS+ and compare their effectiveness to other networking protocols such as Zigbee, WirelessHART, and Bluetooth LE.

Networking Topology

LXRS uses a star network topology for bi-directional communication between one gateway and multiple wireless sensor nodes. All nodes communicate directly to the gateway, and each network operates on a designated frequency channel within the 2.4 GHz license-free ISM band.