Xiaoyunong: one phone for many fish ponds

Project overview

Xiaoyunong is Tongwei’s aerator-control product for fish farmers, not a single-park project. The 4-, 6- and 8-channel controllers are already in use by tens of thousands of farmers. From home, the Xiaoyunong app manages many ponds: switch aerators by phone, on a timer; a power loss places a phone call; aerator protection covers overload, imbalance, phase loss and leakage; aerator and dissolved-oxygen faults also reach the phone. The 4-, 6- and 8-channel units all have these functions. Choose by how many aerators one pond has: 4 channels is FOCS300-4, which can take a slave and grow to 8 without replacing the whole controller; 6 channels is FOCS200, in single-phase 220 V and three-phase; 8 channels is FOCS300-8, master-slave with two incoming supplies. The outage guard is optional: plugged into a socket, it sends a further notice on both power loss and power return, to at most three phone numbers, by call, SMS, WeChat and the app. An optional fluorescence dissolved-oxygen probe uses no electrolyte, reads in still water, and is not readily poisoned by hydrogen sulphide, ammonia or chlorine; with timely cleaning, calibration often holds for six to twelve months. What the equipment brings is safety, and it saves money and effort: power loss and leakage reach a person, and switching and timers mean fewer trips and less idle running. Judgement about the fish and the pond stays with the farmer. Site power distribution and leakage protection follow electrical practice; the controller does not replace that.

On site

Main functions delivered

1. One phone, many ponds: each pond’s aerators switch in the same app, without walking over to press a button
2. Timed switching: start and stop follow the pond’s schedule, so aerators do not idle
3. Safety: a phone call when the pond loses power, and an alarm on leakage or an abnormal aerator. Without it, a farmer asleep at the bank would not know about a power loss or a trip, and the fish can be in trouble within an hour
4. Less effort and less cost: switch by phone instead of walking over to press a button. Timers start and stop on schedule, so aerators idle less and need not be started late just to save power
5. Choose by pond: 4-channel FOCS300-4, expandable to 8 with a slave; 6-channel FOCS200, single-phase 220 V or three-phase; 8-channel FOCS300-8, master-slave with two incoming supplies
6. Optional outage guard: plugs into a socket and sends a further notice on both power loss and power return, to at most three numbers
7. Dissolved oxygen: the fluorescence probe reads in still water and still gives a usable low-oxygen warning