project payload monitoring - onboard weighing system to monitor payload, loading/unloading time...

PROJECT

PAYLOAD MONITORING

A. Seshadri11/07/2013 1

Why Payload Monitoring

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Applications

• Market load

• Iron ore / Mining sector

• B2B Transportation

• Distribution trucks – Cement etc

• Petroleum / Tanker Applications

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CUSTOMER REQUIREMENTS

Market load woes

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Mining sector woes

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B 2 B Transportation woes

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Distribution / Retail sector woes

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Oil Tanker woes

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Customer requirements

Applications voices

Market load I need to know how much load & where it is being loaded –where it is being unloaded. Overload penalty is tough to estimate

Iron ore Long waiting at weighbridge near the mines. Waste of time in unloading if the load is more

Cement Distribution

Dealers take advantage by sending the distribution vehicle to the end pointSometimes actual buyer is not getting the load

B2B Transportation

Delay in delivery. En-route pilferage

Oil Transport Pilferage , Adulteration & delivery at wrong place

FMCG/ Personal Pilferage

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Customer requirementsPilferage Right weight

measurementRegulation Transportati

on to the right point

Loading & unloading time

Market load

Iron ore

Cement Distribution

B2B

Oil Transport

FMCG/Personal

Reduces lossAvoidadulteration

Saving time & fuel

Saving penalty

Avoidmisuse

Reduction of trip time &Increase productivity

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Solution architecture providing

On-board progressive load sensor

Data acquisition

Information to the needy

Load sensing module

Acquisition –filtration

Transmission to central server

1. Continuous Net payload measurement tonotify any Pilferage, esp when vehicle isstopped

2. Progressive net payload measurement toreduce the time taken for loading /unloading & improve productivity esp inB2B transportation

3. Ensure correct loading especially to meetRegulations in Mining sector- Improvesproductivity & saves penalty esp. inMarket load operations

4. To calculate the No of Trips/ Tipping &calculate the total material moved /Payment due.

5. Correct loading Prevention ofaccidents, Improve vehicle life & reducedowntime

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Evaluation of various technology options

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Linear potentiometer

Linear Potentiometer in mounted in-between “Axle” and “Chassis” Basically it measures the change in length (distance between “AXLE” and “CHASSIS”) due to load. The change in length (§L) is directly proportional to the load on the spring. The Linear potentiometer measure the change in resistance due to change in length (§L)inturn into change in load, output in terms of the voltage

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Pressure measurement

Low bed trailers using hydraulicsuspension or tippers with hydraulictipping systems can use the hydraulicpressure to calculate the payload

Whenever air-suspension is availablethe levelling valve /load sensingvalve can be handy to measure theexact payload

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Load cells for mechanical suspension – Rigid body

LOAD BODY

Load Cells

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Load cells for mechanical suspension – Tipper body

Pressure sensor Shear Pin load cell

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Mechanical suspension – Between Spring & Axle

Load cell between the spring & Axle

LOAD BODY

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Mechanical suspension – sticking type Strain Gauge sensor

Strain Gauge Load Sensor

LOAD BODY

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Air Suspension – Pressure based load sensor

LOAD BODY

To Air tank To Load sensor

Levelling valve

Air Bellow

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