The 2026-27 sugar season opened on 1 October, and every quintal that crosses a mill gate becomes a line in a cane payment. A sugar mill RFID system at the cane truck gate has one job: to bind the vehicle, the supply slip, the grower and the weight into a single record that nobody has to key in. This guide covers that record, how to tag a fleet that includes tractor-trolleys and bullock carts, where to put the read points, and what to write into the tender before the yard queues build.
Why the cane weighment is a payment record
The Cabinet Committee on Economic Affairs fixed the Fair and Remunerative Price for sugar season 2026-27 at Rs 365 per quintal at a basic recovery of 10.25%, for cane bought from 1 October 2026 (PIB, 5 May 2026).
Recovery sets the rate; the weighment sets the quantity, and starts the payment clock. Under clause 3(3) of the Sugarcane (Control) Order, 1966, unless there is a written agreement to the contrary, the mill must pay for cane within 14 days of delivery. Clause 3(3-A) adds interest at 15% a year for any delay beyond those 14 days.
The Order as amended to S.O. 4646(E) of 2022 defines the price as the one fixed for cane delivered at the factory gate or a purchasing centre (clause 2(g)). Its clause 3-A provisos provide for rebates for mill transport from a purchasing centre, for burnt, stale, dried or rejected-variety cane, for binding material (up to 1 kg per quintal) and for ex-field supply, and each depends on a fact recorded at delivery. A weighment row not tied to a vehicle, a slip and a time is a weak basis for any of these.
What the gate has to bind: grower, slip, vehicle, weight
Procedure varies by state; take Uttar Pradesh as a worked example. UP’s Cane Supply Policy for 2026-27 is Circular No. 628/C of 25 August 2026, listed on the Cane Department’s orders page. Its weighment chain:
- Each society member has an allotted Unique Grower Code, and the supply calendar is published on the Smart Ganna Kisan (SGK) website and the e-Ganna app.
- The grower receives an SMS slip (parchi) on his registered mobile, and has the cane weighed at the mill gate or his attached purchase centre, on the date and at the place on the slip, showing the slip and an identity document.
- Cane is weighed only once against a slip; if a slip is weighed twice, the mill and society clerks are held directly responsible.
- Up to 20% more than the slip’s fixed weight may be weighed; once the accumulated excess equals one basic-mode slip’s quantity, it is adjusted online against the grower’s next slip (para 5(xv)).
None of the policy’s 21 pages mentions RFID; its “tagging orders” are orders issued for cane-price payment, not radio tags.
Where RFID fits is narrow. The tag identifies a vehicle and a trip, not a grower, because one vehicle may carry different growers’ cane on different trips. The weighment software binds the tag read to the slip at gross weighment, and the same tag at tare closes the trip. Once a slip has a gross weighment, the software can refuse a second, backing the one-weighment rule with more than a clerk’s attention.
Tagging a cane fleet that is not a truck fleet
Para 6(vi) of the UP policy requires a hand-operated testing weighbridge at every mill gate that can weigh anything from a loaded bullock cart to a loaded truck, on a platform big enough for a tractor and trolley coupled together. The tagging plan must cover the same mix.
| Vehicle class | Tag | Decide before ordering |
|---|---|---|
| Truck | UHF windshield tag inside the windscreen | Trial on your own glass; metallised windscreens weaken UHF reads |
| Tractor-trolley | On-metal tag on the trolley, the tractor or both | Couplings change between trips, and the tare changes with them |
| Bullock cart | UHF rugged hard tag on the frame, or a UHF RFID card issued to the cart | No glass, often wood |
| Hired vehicle | As for its class, issued for the season | Who issues it, and how it is revoked |
The tractor-trolley is the real decision. Tag the trolley and the record follows the cane; tag the tractor and it follows the owner; tag both and the record shows which pair arrived. Either way, weigh the tare; whether a tare recalled by tag could replace weighing is a question for your Legal Metrology and cane authorities.
Passive tags and cards have no transmitter and need neither WPC approval nor BIS registration.
Replacing a yard token with a reusable RFID card
If your yard issues a paper or brass token to hold a vehicle’s queue place, a UHF card can do that job with a record behind it. A tagged vehicle can take its place from its yard-entry read; the card is for untagged arrivals, or where the mill wants the place held by the driver.
- At the entry booth, issue a card and bind it in software to the slip and, if present, the vehicle’s tag.
- Take queue order from the yard-entry read timestamp, not a number on a token.
- Collect the card at exit and clear its binding for reuse.
- If a card is lost, void it, issue a replacement bound to the same slip and entry time, and log the reason; a voided card that turns up later cannot jump the queue.
It is the issue-and-return logic of RFID vehicle parking management.
Read points: yard entry to exit
| Point | Trigger to specify | What the record gains |
|---|---|---|
| Yard entry | First read in the entry lane | Arrival time, queue position, slip date and place checked |
| Weighbridge (gross) | Platform reports a vehicle on it | Tag, slip, grower code, gross weight, time |
| Unloading | Read at the unloading bay | Unloading time on the same trip |
| Weighbridge (tare) | Same platform condition | Tare and time; trip closed, net computed |
| Exit | Exit lane read, card collected | Exit time; card binding cleared |
A read on its own is only a sighting. At the weighbridge, accept it only while the platform reports a vehicle, so a tractor waiting on the ramp is not written against the weight on the platform. Then work reader power and antenna aim down until the queue behind is not read (see the UHF antenna gain and polarisation guide); over-reading is a commoner gate fault than a missed read. The India RFID Store’s guide to RFID at the weighbridge covers reader and antenna placement on the lane; it was written for mineral permits, but the lane is the same.
For vehicle lanes and the weighbridge, our RFID gate reader page points to a fixed reader with external antennas such as the IHZ4, whose three inputs can take the platform or loop signal and whose three relay outputs can drive a lane light or barrier. The HLR200 walk-through portal, reading up to about 4 m across, is meant for doorways and corridors, not cane-truck lanes. Confirm the choice by trial on your own lanes and vehicles.
UHF readers in India work within the licence-exempt 865–868 MHz band under G.S.R. 853(E) of 10 December 2021. Identium is a BIS and WPC approved RFID manufacturer.
Feeding the cane software you are already required to run
In UP the reader joins a regulated system. Under para 6, societies run on the centralised SGK system, which issues digital slips. Software for cane supply, weighment and payment may be used only after prior intimation to, or approval by, the Cane Commissioner, before crushing starts. A confidential lock code is applied once the final calendar is issued. Computerisation must run from survey data to bank advice.
The RFID layer should not keep a parallel cane ledger; it should pass the tag ID (EPC) and read timestamp to the mill’s approved weighment software, which stores them as fields the operator cannot edit. In UP that points to building the field into the software before it goes to the Cane Commissioner. Agree in writing who writes that field and how the reader delivers it.
The timestamp matters commercially. Para 11 requires payment through an escrow account by bank advice, bars cash, and has mills pay “First Supplied First Paid” in the date order of supply. Alongside the 14-day clock, a machine-captured weighment time gives that order a record that is harder to dispute.
What RFID will not fix at a cane gate
- It does not weigh. A weighbridge used in a transaction must be verified before use under section 24(1) of the Legal Metrology Act, 2009 (text via FAOLEX).
- It does not detect a doctored platform, load cell or indicator. It binds an identity to whatever weight is reported.
- It does not replace people controls, such as UP’s fortnightly online-lottery rotation of weighment clerks at purchase centres (para 13(iii)).
- It is not a mandate. We found no central order, and nothing in Uttar Pradesh’s 2026-27 Cane Supply Policy, that requires RFID on cane vehicles; check your own state’s supply policy.
- It is not the weighbridge or the cane software. Those are separate lines in the tender; name an owner for the interface between them and the reader.
Other gate regimes have their own posts: RFID for e-way bill compliance and mineral transport compliance; the RFID vehicle tracking system page covers the general plant-gate pattern.
What to write into a sugar mill RFID tender before the crush
UP asks mills with a large early-variety cane area to try to start crushing by 15 October, so the season may already be under way at your mill. A one-lane pilot can still be specified now:
- Vehicle classes and counts: trucks, tractors and trolleys counted separately, carts, and expected hired vehicles.
- Grower and slip fields: slip number, the grower’s code as held in the cane system (the Unique Grower Code in UP), purchase centre or gate, and slip validity date.
- Read points and the trigger for each, as tabled above.
- Tag type per vehicle class, with issue, re-issue and season-end revocation.
- The interface to the approved cane software: who writes which field, in what format, and by when.
- Manual fallback: a failed read is entered by the clerk with a reason code, flagged as manual.
- Approvals stated per model, in writing, for every reader and antenna quoted.
- A one-lane trial on real vehicles, including a coupled tractor and trolley and a cart, before the peak.
Everything is quoted against specification, and custom tag orders typically turn around in 5–10 days. Our RFID tender and BOQ guide sets out the line items, and the RFID for transportation page covers yard and depot gates. When your list is ready, send it to us.