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Home & Building AutomationScenario

Building Energy Management

A retrofit kit that adds energy metering and occupancy-based control of air conditioning and lighting to existing buildings, without a new BMS. Clamp-on meters and battery sensors avoid power shutdowns and rewiring, and data stays on site. It suits offices, malls, high-rises and retail chains.

Homes and buildingsRetail

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Modern glass and white office tower in Bengaluru rising above trees against a clear blue sky — Photo: IM3847, CC BY-SA 4.0, Wikimedia Commons. Shows the setting, not this installation.

< 100 ms: Modbus RTU to BACnet translation on R1000 (vendor claim)
0.5 class: accuracy class of the 100A/5A split-core CTs (spec)
400 to 10,000 ppm: CO2 range of the S2103 (spec)
-20 to 70 °C: gateway operating range (spec)

Results reported by the design's authors on their own test setups. Yours depend on the site, so we confirm them in a pilot.

The problem

Why it matters.

Legacy HVAC, lighting and meters speak different protocols, full upgrades are slow and costly, and cloud-only analytics add fees and lag.

The flow

From signal to action.

01SenseMeters and sensorsSplit-core CTs and wireless sensors measure circuit load, temperature, humidity, light, CO2 and occupancy.
02ConnectLoRaWAN uplinkSensor and meter data reach a SenseCAP gateway, which sends it on over Ethernet or 4G.
03DecideEdge gatewayA reComputer reads old equipment over Modbus RTU or BACnet and converts it to one format.
04ActControl rulesLocal rules and anomaly checks adjust HVAC schedules and set points over Modbus.
05RecordBuilding dataResults are shared on the LAN by MQTT or REST, with optional de-identified cloud push.

Deployment architecture

How it is wired.

The devices on site, what carries their data, where the decision is made and where the result goes.

01SenseOn site

SenseCAP S2101 LoRaWAN Temperature & Humidity Sensor
SenseCAP S2103 LoRaWAN CO2 + Temperature & Humidity Sensor
SenseCAP Watcher

02ConnectCarries the data

reComputer R1225 LoRaWAN Gateway + Industrial Controller1 per site
SenseCAP S2100 Data Logger
SenseCAP M2 Indoor Gateway
Sensor Hub 4G Data Logger
Modbus RTU
LoRaWAN

03DecideRuns the model

reComputer R1000
reComputer R1100

04Your systemsWhere results land

BACnet
OPC UA
MQTT
REST API
HTTPS

05ActWhat happens next

SenseCAP Indicator
reTerminal DM
Control rules

How it works

Step by step.

01Clamp CTs onto sub-circuit cables in the distribution panels without cutting power.
02Fix battery sensors in rooms and meeting spaces, no drilling or conduit needed.
03Place gateways in the electrical or comms room and connect chillers over RS485, CAN or dry contacts.
04Set rules for schedules and occupancy-based HVAC and lighting.
05Publish data to your internal dashboard over MQTT or REST.
06Extend floor by floor as budget allows.

The hardware

What goes on site.

Items we stock can go straight in the bag. Everything else we source and quote with the installation.

reComputer R1225 LoRaWAN Gateway + Industrial Controllercentral gateway and controller1 per siteSourced on quote
SenseCAP S2100 Data Loggersends RS485 meter data over LoRaWAN4 in the energy billing example₹7,979
SenseCAP S2101 LoRaWAN Temperature & Humidity Sensorroom temperature and humidity6 in the comfort control exampleSourced on quote
SenseCAP S2103 LoRaWAN CO2 + Temperature & Humidity Sensorroom CO2 and climate3 in the comfort control exampleSourced on quote
SenseCAP S2102light level sensingSourced on quote
reComputer R1000DIN-rail protocol converter for Modbus and BACnetSourced on quote
reComputer R1100edge gateway with RS485, CAN and wirelessSourced on quote
SenseCAP M2 Indoor GatewayLoRaWAN gateway with Ethernet or 4G backhaulSourced on quote
Sensor Hub 4G Data Loggerdirect 4G link for remote switch roomsSourced on quote
SenseCAP Watchervision-based occupancy sensingSourced on quote
SenseCAP Indicator4 inch room display and controlSourced on quote
reTerminal DM10.1 inch industrial HMISourced on quote

Before you install

Access to distribution panels with DIN rail space for CTs and meters.
A comms or electrical room with power and a LAN port for the gateway.
HVAC units or chillers that expose Modbus, BACnet, RS485 or dry contacts.
Ethernet or 4G backhaul for the LoRaWAN gateway.
An internal dashboard or database that can take MQTT or REST data.

Good to know

Savings are not quantified on the page and depend on how wasteful the building is today.
Older or uncommon HVAC brands may need protocol adaptation work.
Project time depends on the number of points and available work windows; no timeline is given.
Camera-based occupancy sensing needs a privacy notice for occupants.

How we deliver it

Paper to site, one team.

01Site surveyWe walk the site, or review photos and drawings, and agree what to measure and where each device goes.
02PilotOne lane, one line or one room first. We tune it on your conditions and agree what good looks like.
03Roll outWe supply the hardware in India with GST invoices, install it, and connect it to the systems you already run.
04SupportSpares, remote checks and model updates, with one team to call when something changes.

Questions

Asked before buying.

Do we need to shut power to install meters?

No. Split-core CTs clamp around live cables without cutting them.

Can our building data stay on our premises?

Yes. It can run fully on site, with an optional de-identified push to a private cloud.

Is it worth it for a single shop or restaurant?

Yes. A small site can start with one gateway, the AC and one meter.

Want this on your site?

Tell us the site and the problem. We come back with a pilot plan and a priced hardware list.

Book a call with an engineer Write to us

Want this on your site?

Whole-Home Smart Living

Building Energy Retrofit

Smart Home Control Panel

Want this on your site?

Whole-Home Smart Living

Building Energy Retrofit

Smart Home Control Panel