Industrial Power
Electrical-safety monitoring, energy metering and intelligent control for factory equipment.
SAFEBACK builds safe smart energy technology, with smart aquaculture as its first market: intelligent power, equipment control and energy management for farms — real-time DO monitoring, automated aeration, low-oxygen alerts and multi-pond management. Less manual night patrol. Faster response.
Energy safety → electrical safety → intelligent control → smart aquaculture: aerators and pumps run for months non-stop, yet traditional farms have no continuous electrical-safety monitoring or energy data. SAFEBACK closes that gap with sensors, smart controllers, communication and AI.
Summer thunderstorms, typhoon load-shedding or a burnt-out transformer stop the aerators. Between 3 and 5 a.m. dissolved oxygen falls off a cliff, and the whole pond can be lost in hours.
Fixed schedules do not know what the pond needs right now. SAFEBACK uses real-time DO data to support automatic aeration decisions, helping farms operate equipment according to actual pond conditions.
However experienced you are, you still get up at night to patrol the pond, look for gasping fish and decide whether to start the aerators. Labour costs money, it exhausts you, and judgement slips.
Reliable monitoring depends on good sensor maintenance and clear alarms. SAFEBACK combines DO monitoring, device status and alerts so operators can act before a problem becomes critical.
SAFEBACK connects dissolved oxygen sensing, aerator control, connectivity, cloud services and mobile monitoring into one practical system for aquaculture farms.
From utility grid, battery storage and genset down to a hardware bypass lever: if one layer fails, the next one takes over automatically.
In accordance with GB/T 3805 / IEC 61140 SELV — essentially harmless to people and to fish.
4G, Wi-Fi and Bluetooth serve different connectivity scenarios; edge decisions, cloud rules and the mobile app work together.
SAFEBACK = power distribution + IoT + cloud: a three-tier, coordinated aquaculture operating system. Every tier can run standalone; together they form a thinking "pond brain".
cloud SaaS · O&M · subscription
4G controller · sensors · edge loop
DC 48V microgrid · 380V AC coupling
New ponds adopt a native DC 48V microgrid (Route A); existing 380V sites get PV-storage-genset AC coupling (Route B). The two routes are complementary — never conflicting, never mixed up.
new ponds / DC-native architecture / the optimal power topology
existing 380V ponds / no rewiring / upgrade in place
Controllers and sensors are fully self-developed; storage products are available as OEM/ODM — every item backed by engineering, not slides. These technologies are currently applied primarily to smart aquaculture.
In-house 4G IoT gateway board: 4G IoT SIM + 2 RS485 terminal groups (parallel on one bus) + edge DO loop — one device that pulls sensors, aerators and VFDs onto a single data bus.
Y504-A fluorescence-quenching DO probe: no electrolyte, no frequent recalibration, no membrane, IP68 titanium-alloy housing, RS485 Modbus straight into the 4G controller — the drift problem solved at its root.
Three-phase U/V/W × 4 channels = 12 high-current relay outputs, three-phase 380V input, no neutral required (or one 220 V single-phase unit per pole, up to 12 when the whole site is single-phase, neutral taken from the panel); three RS485 ports plus a 12V bus cascade with the 4G gateway, scalable to 6.7 ha+ clusters.
Wall-mounted waterproof VFD driven directly by the 4G controller over RS485 Modbus; DO thresholds map to four automatic speed steps — a further actual energy performance depends on the pond, equipment and operating strategy.
5.12 kWh × 8 = 40.96 kWh of rack modules, 51.2V DC compatible with a 48V bus, fits standard 19-inch cabinets; once connected to the Kantangren 4G controller it charges at off-peak tariff and discharges at peak.
30.72 kWh × 2 = 61.44 kWh modular lithium storage cabinet, 51.2V DC plug-and-expand straight onto the bus; IP55 rated, >6,000 cycles, BMS + EMS coordinated through the Kantangren 4G controller.
Split-body freshwater probe measuring pH / temperature / TDS / conductivity in a single unit; links to the Kantangren 4G controller over Wi-Fi 2.4 GHz via Modbus for remote reading and out-of-limit alarms; with float collar or lanyard it can be dropped straight into the pond.
Adds ORP / specific gravity / salinity on top of the four parameters; works in seawater, brackish and fresh water — purpose-built for shrimp ponds; TDS and conductivity auto-range, with salinity covered across the full 0.01%~25.00% span.
Log in and go — no complicated setup. Multi-pond control · live dashboard · one-tap remote switching · alarm push notifications.
A single management platform for distributors, integrators and enterprise accounts: full device lifecycle + customer management + financial reconciliation.
Millions of devices, millisecond-resolution time series, built on the company's existing IoT middleware platform — negligible marginal cost.
SAFEBACK® EMS energy cockpit, web farm overview and mobile app — three entry points for big-screen O&M, desktop management and mobile operation.
Battery SOC, PV power, grid / genset status and load interlocks all visible on one screen; automatic peak-valley arbitrage decisions, with the full energy flow of the farm on a PC dashboard.
Centralised multi-pond management: live DO / water temperature / pH / ammonia trends, device online status, remote aerator control and alarm tickets — all in one place.
Monitor pond DO, view equipment status, receive alerts and manage aeration from your phone with the SAFEBACK app (Android / iOS).
The first overseas version focuses on the functions farm operators use every day.
Fish, shrimp and crab ponds fail for different reasons. Shrimp are the most oxygen-sensitive; in crab ponds, aquatic weeds consume oxygen at night; fish ponds are most at risk in muggy weather and before dawn. Pick your scenario, then see the setup and how we deploy it.
From a 0.3 ha starter pond to a 6.7 ha+ enterprise operation, three packages cover most farm sizes. CNY figures converted at approx. 7.15 CNY/USD; the formal quote follows an on-site survey.
We do not sell "installed then ignored" hardware. From survey to acceptance, all six stages are run against standard manuals — each step has a checklist, a signature and full traceability.
Engineers come to the pond with the On-Site Survey Checklist and confirm conditions item by item.
Route is chosen by pond scale and budget: native DC 48V or 380V retrofit.
Enclosures are assembled on DIN rail and power-tested in the factory, arriving ready to install.
Crews work to the Installation Manual — they do not need to read schematics.
Ten steps per the On-Site Commissioning SOP: insulation → earthing → power-up → comms → interlock.
Checked item by item against the Acceptance Standard & Checklist, then signed off by both parties.
The devices report their own faults: the cloud platform monitors 24/7 and most issues are resolved remotely, without waiting for an engineer to travel out. Anything that does need a visit follows P0~P3 graded response targets.
one of them always answers, even at midnight
12 remote capabilities — most faults fixed without leaving the village
wear parts are listed at fixed prices — replace a part, not the whole unit
Pond-loss risk is always handled at the top grade — keeping the fish alive comes before everything.
| Grade | Definition | First response | Resolution time | Typical case |
|---|---|---|---|---|
| P0 Critical | all aerators out of control, pond-loss risk present | 15 minutes | 4 hours | device offline + critically low DO |
| P1 Severe | some circuits out of control, sensor failure | 30 minutes | 24 hours | one relay channel not switching |
| P2 Normal | abnormal data but aeration unaffected | 2 hours | 48 hours | frequent 4G dropouts, DO jumps |
| P3 Minor | usage questions, feature suggestions | 4 hours | 7 days | how to set timer mode |
Hardware is the entry point; subscription is the retention. Start from the basic tier and upgrade with farm size — long-term retention has a reason behind it.
A hardware ladder from from single ponds to farm networks; configuration differences are public and transparent, upgradeable on demand.
| Tier | Hardware | Suitable for |
|---|---|---|
| Basic | relay mode | single pond under 0.3 ha |
| VFD | VFD closed-loop speed control | standard farms of 0.7-2 ha |
| Flagship | DC 48V + storage + microgrid | over 2 ha |
Annual subscription is priced in steps by service depth; support, O&M, data and value-added services are selectable and configurable.
| Level | Service | Value |
|---|---|---|
| Data | live trends · history replay | basic monitoring |
| Alerts | graded alarms · voice-call notification | risk backstop |
| O&M | OTA · remote commissioning · tickets | long equipment life |
| Value-added | water quality reports · feeding advice · API | better farm management |
Start from the basic configuration and layer on capability as the customer grows. Deployed hardware is 100% compatible with the next stage of firmware. Stage 5 (Vision AI) is in R&D, requires new sensing hardware, and is currently piloted in representative ponds.
4G controller + fluorescence DO sensor + direct-on-line relay start: the first step of "DO visibly measured + aerators switched automatically".
Add a VFD; DO thresholds drive four interlocked speed steps, Potential savings vary by site.
New ponds adopt the native DC 48V microgrid: intrinsic safety plus greatly improved lightning withstand.
Existing 380V ponds can be evaluated for PV-storage-genset integration according to site conditions and load requirements.
Underwater cameras + an edge AI box + cloud-side decision-making. Recognised events are translated by the 4G controller into Modbus commands that drive aerators and feeders. Four capabilities, rolled out by maturity.
Sudden density surge at the surface plus a sustained gasping posture. Aeration starts once DO stays below threshold for 5 minutes; if DO has not recovered 30 minutes after start-up, a second alarm fires.
PilotDetects floating, motionless or belly-up individuals, captures photo evidence, and pushes a cloud alarm together with recommended manual action.
ReadyA fixed side-view camera plus image calibration estimates body length and weight. Reference accuracy: length ±5~10%, weight ±10~15%, used to manage feed ration and harvest timing.
In R&DJudges hunger and satiety from feeding activity, competition speed and leftover feed, then adjusts the ration dynamically. Time-window accumulation avoids single-frame misjudgement.
In R&D · Phase 3Engineering limits: Underwater imaging is constrained by turbidity, algae and biofouling, and low light. It requires an anti-fouling shroud plus an automatic cleaning mechanism (wiper / ultrasonic) and low-light or IR illumination. Edge compute should be RV1126 / HiSilicon class; ESP32 is used for capture and transmission only, not for on-device inference.
Delivery status: Stage 5 requires additional underwater sensing hardware and does not follow the "no hardware change" path. It is currently piloted in 1–2 representative ponds only and is not yet a standard deliverable. Feasibility depends on on-site water quality and pond survey.
SAFEBACK is extending its intelligent sensing, control and Energy AI technology to more energy applications. Smart aquaculture is our first market — not the only one. The same self-developed sensing, control and Energy AI stack is heading for a bigger energy world.
Electrical-safety monitoring, energy metering and intelligent control for factory equipment.
Building distribution and energy management for HVAC, lighting and other loads.
Site-level power supply, solar-plus-storage coordination and efficiency optimization.
Storage products available as OEM/ODM with the SAFEBACK smart control system.
PV integration, generation monitoring and source-grid-load-storage dispatch.
Charger integration, managed charging and load control.
These are technology expansion directions; product form and delivery plans subject to official announcements.
Kantangren is SAFEBACK's aquaculture-focused industry brand; SAFEBACK is a safe smart energy technology brand of Guangzhou Hotekey Electronics Co., Ltd.: controllers + sensors = core hardware (fully self-developed), AI + platform = core software, and storage available as OEM/ODM energy products. Smart aquaculture is our first market; industrial, commercial and storage applications are the next stage of expansion.
In the aquaculture market, the brand promise "We watch your pond, so you can sleep soundly" frees farmers from 3 a.m. patrols, the anxiety of stormy nights and the monthly power bill. Every solution has an engineering basis, every number has a source, and every function can be verified on its own.
The name SAFEBACK stands for Trust And Keep Energy-safety — the trusted choice for guarding farm energy safety: Technology at the core, Accuracy as the basis, Yield as the goal, Knowledge to simplify, Ecology for the long run, and Ease on every pond. SAFEBACK — Keep your aquaculture always powered & safe.
Tell us about your ponds, aerators and current monitoring setup. We will recommend a suitable SAFEBACK configuration.
The real killer is the small hours after the outage. Once the aerators stop, dissolved oxygen falls off a cliff between 3 and 5 a.m. and a whole pond can be lost in hours. The Kantangren DC 48V storage architecture switches over the instant the grid drops and the 4G controller raises a real-time alarm - turning "wake up and find out" into "get warned in advance".
Why does dissolved oxygen crash before dawn? Read the explainer →
Because conventional aerators only know on/off, not dissolved oxygen - so most of the running time is wasted, and the power bill can eat a significant share of operating costs. Kantangren measures DO in real time with a fluorescence sensor and modulates the VFD on demand, with potential savings that depend on pond conditions, equipment and operating strategying.
How the VFD closed loop aerates on demand →
No. The system monitors dissolved oxygen and temperature 24/7, switches aeration on automatically when limits are exceeded, and sends voice-call / WeChat alarms, with live curves on your phone - night patrol becomes automatic system watch.
How data travels from pond to phone →
Drift is usually not a dead probe - it is biofilm. Conventional polarographic probes need membrane replacement and cleaning every 1~3 months; switch to a fluorescence probe (no membrane, no frequent recalibration) plus an automatic wiper in an IP68 titanium-alloy housing and maintenance frequency drops by an order of magnitude.
What biofouling is, and how auto-cleaning works →
More questions? Read the full FAQ - 10 questions →
SAFEBACK connects dissolved oxygen monitoring, low-oxygen alerts, aerator control and mobile visibility. It is designed around practical pond operations; final configuration depends on the farm, ponds and existing equipment.
Monitor key ponds and receive low-oxygen alerts without relying entirely on manual night checks.
Use configured control rules to operate aerators automatically, while keeping manual intervention and local control available as designed for the project.
Start with a pilot pond or farm, then expand across multiple ponds as the operating model is validated.
Share your species, pond count, pond size, aerator count and current pain points.
Tell us your farm scale and pond setup; an engineer will contact you within one business day with an on-site survey and a draft proposal.
Distributors, farm owners, integrators and enterprise accounts are all welcome. Every proposal includes an on-site survey and a trial application.
Tell us about your farm (~1 min). We will reply within 1 business day with:
· Equipment sizing (controllers / DO sensors / aerator channels)
· Indicative budget and payback estimate
· On-site survey arranged separately if needed