Compact, LoRaWAN™, wireless accelerometer with edge computing for condition monitoring.
The 8911 from TE Connectivity (TE) is a compact, reliable sensor with a LoRaWAN™ Class A protocol used for condition monitoring applications where signal reliability is critical. This wireless IoT sensor enables customers to expand remote condition monitoring systems into more critical equipment, improving the uptime of machinery, preventing incidents or detecting them sooner. It's mounting footprint and stud size are standard to enable fast installation on new and existing machinery. The 8911 combines a sensor, data collector and a LoRaWAN™ radio into one compact, battery-operated device. This compact sensor is designed with a corrosion resistant stainless steel case and plastic covering. The rugged, IP66 rated O-ring seal allows the sensor to perform well in harsh environments. This accelerometer uses a piezo sensing element which has the advantage of high bandwidth and ultra low power vs MEMS solutions. This enables longer battery life of up to 10 years and ultra low sleep power usage.
LoRaWAN™ Class A wide area networking protocol
Compact design (1.25" hex x 3.1" height)
Robust signal preventing interference and drop out
Provides ambient temperature and FFT calculations
Up to 10 years of battery life based on sampling interval
What is LoRaWANTM?
LoRa is a low power long range communication technology using spread spectrum radio’s on the unlicensed ISM band (Industrial, Scientific and Medical). Frequencies vary by region for LoRa: US 916MHz, EU 866MHz, and China uses both 433 and 866 MHz. LoRaWANTM is an open standard developed by the LoRa Alliance to standardize the communication of devices.
Why use LoRaWANTM?
Some of the key benefits of the signal include low power consumption, long range, and low data rate communication. The signal is suitable for remote battery operated IoT sensors and devices. The signal is suitable for noisy environments like factories, oil fields, chemical plants.
How long of a range can LoRaWANTM cover?
A typical signal range can be over 10 km in open field (no obstructions). In Industrial IoT applications with walls, machines, etc., this range is reduced, but in most cases can still cover most of a normal manufacturing plant.
What LoRaWANTM gateway should I use to connect the wireless sensor?
We have tested this with the large IoT gateway providers, but any LoRaWANTM compliant gateway will be able to connect to the 8911 sensor. For questions regarding suitable devices, contact TE.
Are there best practices in gateway location?
LoRaWANTM is a robust long range communication protocol, and to maximize range; it is best to put the LoRaWANTM gateway as high as possible and pair with a high gain antenna. We recommend you test different locations to determine what works best in your application.
Is there a subscription fee for a LoRaWANTM Network?
It Depends. There are 2 types of networks, a managed LoRa Network, and a private network.
a) Managed network: Monthly fee required per device or per gateway and typically managed by the gateway providers. They will also manage all the network provisioning, security, uptime, and device management. This removes a level of complexity to the customer.
b) Private network: This is where a customer can take a gateway and connect to their own internet service and create a LoRa network. This is low cost (no monthly subscription fee), but higher workload as the customer has to manage all the network and the devices on the network.
Does the customer need to pay for a managed LoRaWANTM network for the 8911?
No – the customer can connect any generic LoRa gateway and build and manage their own private network.
What does the customer need to connect to the gateway?
Customer will need the Dev EUI and the App Key to be able to connect the sensor to the LoRa network and provision it. These keys are provided by TE.
Where does the customer find the Dev EUI and the App Key?
Dev EUI is marked on the sensor with the QR Code, as well as printed in text below the QR Code.
For Sample and Pilot Quantities keys will be transmitted manually:
Send Dev EUI Key to email@example.com along with where to send the key (email address)
Customer will receive a key via email within 24 hours
Note: TE Understands this is not the best method and can be improved for more secure App Key transmission. We are working to develop a dedicated secure JoinServer to provide keys in the near future.
Does TE provide a cloud system to show the data from the 8911?
No – TE does not offer cloud services or visualization and analytics, we are working with partners to give options to our customers.
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