Diyu pitches closed-loop building energy control for commercial properties

Shenzhen Diyu Smart is positioning itself as a building energy management system supplier, tying together smart meters, sensors, HVAC controls and load switches to cut waste in commercial buildings. The company says the biggest gains come from closed-loop automation that measures, decides and acts across electrical, thermal and plug loads.

Why it matters: - Commercial buildings waste energy when metering data is not tied to automated controls. - A closed-loop system can reduce consumption across HVAC, lighting and plug loads. - Diyu Smart is targeting properties that need both energy savings and tenant comfort. - The company says integrated control can produce capital expenditure payback within 12 to 24 months in typical properties.

What happened: - Shenzhen Diyu Smart Co., Ltd. outlined its role as a building energy management system supplier for commercial facilities. - The company described a system that combines smart sub-meters, environmental sensors, HVAC controllers and load switches. - The release was dated October 14, 2026, and originated from Shenzhen, Guangdong, China. - Diyu Smart also pointed readers to its official website for the full energy portfolio.

The details: - The DDS1000 single phase smart meter communicates via RS485 Modbus RTU and carries Class 1.0 accuracy. - The DDS1000 records active energy, voltage, current and power factor. - The DTS1000 three phase smart meter captures four-quadrant reactive energy, maximum demand and phase unbalance. - An AMI smart meter infrastructure supports advanced automated reading across larger multi-site portfolios. - Diyu Smart also references iot energy meter, smart power meter, iot power meter and iot smart energy meter deployments for branch-level metering. - A ZigBee smart meter can send sub-metering packets to nearby gateways without running data cables into electrical panels. - The Heiman HS8OS millimeter-wave presence sensor detects micro-movements that passive infrared sensors can miss. - The Heiman HS1DS magnetic contact sensor can pause fan coil cooling when windows remain open. - HVAC systems account for 40% to 60% of total electricity consumption in commercial buildings. - Smart thermostats and smart HVAC controllers can enforce temperature deadbands and scheduled setbacks during unoccupied hours. - Air conditioner controllers can bridge infrared or serial control interfaces to building networks for variable refrigerant flow systems and split air conditioners. - Industrial smart switches can work with presence detectors and daylight harvesting sensors to dim or shut off fixtures. - Smart sockets can automate scheduled shutoffs for printers, water dispensers, monitors and vending machines. - The CZ1000-256 industrial wired gateway manages Modbus RTU and M-Bus meters across 256 endpoints. - The 255MG-801 LoRaWAN gateway and ZigBee coordinators connect wireless sensors and thermostats. - Open RESTful APIs and MQTT message brokers move telemetry into building software. - A central commercial energy monitoring system can visualize consumption, correlate tenant billing and trigger automated demand response during peak tariff events. - In office towers, granular sub-metering supports tenant billing allocation and centralized HVAC scheduling. - In industrial parks, energy management focuses on three-phase motor efficiency, transformer power factors and compressed air leakage. - In apartments and dormitories, sub-meters support prepaid or postpaid billing, while keycard master switches or occupancy-linked smart sockets reduce waste. - The company says a credible retrofit assessment starts with several weeks of baseline metering, load audits and modeling of setback hours in high-tariff markets such as Spain, Saudi Arabia and Malaysia.

Between the lines: - The release is less about one device than about system design. - Diyu Smart is framing energy management as a control loop, not a reporting dashboard. - The company is also signaling that different property types need different control rules. - The pitch centers on turning data into automatic action, which is where many building efficiency projects struggle.

What's next: - Diyu Smart says system integrators and property owners can contact the company to evaluate hardware schedules. - Buyers are expected to define the full measurement-to-actuation workflow before purchasing individual devices. - The next step for customers is likely a site-specific design that matches meters, sensors, gateways and controls to the building type.

The bottom line: - Diyu Smart is betting that commercial energy savings come from integrated, automated control across the whole building, not from meters alone.