Tekbox Digital Solutions

TBSL1/RFB-LORA – MULTI-SENSORS LORAWAN RTU

The TBSL1/RFB-LoRa is a versatile outdoor RTU, acting as a multi-sensors wireless bridge leveraging the long range capability of LoRa. This is a flexible platform offering a rich connectivity for multiple usual sensors interfaces used in agricultural applications: SDI-12, pulses and analog.

TBSL1/RFB-LoRa allows connecting up to 2 SDI-12 sensors (or more with a junction box), 2 analog sensors and one pulse sensor (e.g. a rain gauge). Thanks to its large internal flash, TBSL1/RFB-LoRa can retain sensors measurements over a long period of time in case of communication outage with the server.

The platform is fully configurable: multiple types of sensors can be attached and each of them can operate on its own time basis for measurement.

The embedded LoRa modem supports both low (433/470MHz) and high (868/915MHz) LoRa radio bands, which makes TBSL1/RFB-LoRa suitable to be used anywhere without having to replace the RF board. TBSL1/RFB-LoRa is deployed as a unique node into a typical LoRaWAN network architecture, sending its packets to the gateway that relays them to the LoRaWAN server over a TCP/IP connection:

TBSL1/RFB-4G – MULTI-SENSORS LTE RTU

The TBSL1/RFB-4G is a versatile outdoor RTU, acting as a multi-sensors wireless bridge and that can operate on any LTE or 3G network thanks to its dual mode modem.

This is a flexible platform offering a rich connectivity for multiple usual sensors interfaces used in agricultural applications: SDI-12, pulses and analog.

TBSL1/RFB-4G allows connecting up to 2 SDI-12 sensors (or more with a junction box), 2 analog sensors and one pulse sensor (e.g. a rain gauge). Thanks to its large internal flash, TBSL1/RFB-4G can retain sensors measurements over a long period of time in case of communication outage with the server. The platform is fully configurable: multiple types of sensors can be attached and each of them can operate on its own time basis for measurement.

TBSL1/RFB-4G relies on MQTT protocol to exchange data with the application server, which ensures a robust transmission and guarantees a quality of service. Upon transmission interval the platform establishes a (secure) TCP/IP connection with the MQTT broker and publishes its measurements. At the same time the platform reacts to potential configuration messages it subscribed to or to firmware over the air update (FOTA) procedure.

SPECIFICATIONS TBSL1/RFB-LORA

▪ Compatible with SDI-12 v1.3 compliant sensors

▪ 2 analog inputs, 1 pulse input

▪ LoRaWAN 1.02 Class A

▪ Supports all regional bands as defined in LoRaWAN 1.02 regional parameters specification

▪ Flexible LoRaWAN settings:

▪ ABP / OTAA

▪ ACK / REPEAT features

▪ Configurable frequencies and data rates

▪ EUI and ciphering keys

▪ PC application to configure the platform (USB)

▪ Configurable measurement intervals for each sensor

▪ Configurable transmission intervals; timing alignment and time zone support

▪ Tags on sensors and measurements for easy integration into IoT platforms

▪ Remote downlink configuration of the platform

▪ Integrated flow and totalizer computation for pulse input

▪ Batteries: rechargeable 3.7V Li-Ion battery with safety PCB and 10k NTC, 1500-2500 mAh

▪ Solar panel: 2-5W, MPP voltage 5-6V

▪ Low quiescent current: 400µA

▪ Operating temperature: -40; +85 °C

SPECIFICATIONS TBSL1/RFB-4G

▪ Compatible with SDI-12 v1.3 compliant sensors

▪ 2 analog inputs, 1 pulse input

▪ Dual LTE/3G modem with configurable preferred RAT

▪ LTE: BC3/5/8/28 – 3G: BC1/5/8

▪ MQTT v3.1.1 compliant

▪ Designed to operate with QoS=1 and leverages MQTT persistence for reliable communications

▪ Various security options for MQTT communication:

▪ Plain TCP/IP

▪ TCP/IP with user name and password

▪ TLS1.2 with user name and password

▪ TLS1.2 with client certificates