Network Architecture
Scalable wireless mesh networkingWavenis ultra-low-power and long-range wireless technology supports a variety of mesh network configurations, from simple point-to-point connections to advanced tree structures with multiple repeaters.
Cellular network gateways are frequently used to relay data between remote networks and data centers in remote monitoring and remote control solutions.2 operating modes: asynchronous or synchronous
In order to cover the widest range of usage scenarios, Coronis products offer asynchronous or synchronous operation. Some products support both modes, thus providing full compatibility with existing networks.
Asynchronous mode implies that end-point polling is used. That is, a software application or user operation calls for a read of a particular end-point or group of end-points. For example, a concentrator initiates communications by sending a request to end-points wirelessly over the network (using a previously created routing table). End-points receiving the request respond accordingly, following the route in the opposite direction. The advantage of asynchronous mode is that it is simple to use and requires very little power in networks with up to around 200 end-points. Asynchronous mode is thus the preferred operating mode for small-size networks with low radio traffic..
To satisfy requirements for large-scale fixed networks, Coronis also provides synchronous mode products and solutions, which are able to cover areas as large as entire cities and support complex site management issues with respect to quality of service, battery consumption, network installation and maintenance, while respecting radio communication standards and regulations,
Synchronous mode offers synchronous wireless fixed network operation, which enables the overall reduction of wireless frames transmitted over the network. This both reduces the "overhearing" phenomenon (which causes devices to awake unnecessarily from standby mode) and enables synchronized end-points to bubble-up sensor data wirelessly according to a time-slot schedule established by the network concentrator. The energy savings over many years is significant. In addition, synchronous mode includes self-discovery configuration, which enables end-points to insert themselves into the wireless network by synchronizing with the concentrator, further reducing wireless communications and protecting battery life. Synchronous networks are thus better adapted for large-scale networks.
You may choose to deploy either asynchronous or synchronous products, depending on network topology, geographical factors and application type. Please contact your Coronis representative for help on making the right choices for your situation.
Network architecture
Deployed architecture depends on the type of solution. For example, a simple lighting control system or point-to-point wireless reading system could involve as few as two wireless devices (a switch and a light):
Figure 1 - Point-to-point connections for monitoring wireless sensors directly
Figure 2 - Point-to-point and point-to-multi-point connections in a lighting control system
On the other hand, a single branch of an advanced metering system (shown below) can include a gateway, multiple repeaters and thousands of end-points. In this type of network, synchronous self-healing and automated configuration techniques, as well as network synchronization and smart-payload features further optimize battery life and maintenance.
Figure 3 - Advanced mesh infrastructure for automated remote monitoring systems
Coronis offers complete Wavenis product integration and development services, as well as training and network planning seminars. Please contact your Coronis representative for more information on networking with Wavenis ultra-low-power and long-range wireless technology.