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PROJECT
PAYLOAD MONITORING
A. Seshadri11/07/2013 1
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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
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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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