3. CORPORATE POLICY
• Source materials from suppliers who comply with ISO 140001 Environmental
standards
• Abide by all state tax laws
• Company adheres to all environmental policies of the state
• Safe and pleasant working environments for all employees
• Abide by all corporate ethics when dealing with stakeholders
4. PRODUCT POLICY
• All products must adhere to ISO standards
• Products should be safe for all users
• Product return policy : returns are accepted during the warranty period and
customers are entitled to replacements
5. ECONOMIC POLICY
• High quality affordable products
• Quick response to customer complaints and product returns
• products are subjected to all VAT fluctuations
6. PRODUCT GOALS
• Function of the Product
• Remote lock and unlock
• Time lock with pre-warning system
• Number of Units to be Manufactured
• 1000 per annum
• Approximate Cost
• LKR 5000 per unit
7. DESIGN SPECIFICATIONS
Product Requirements:
• Remote lock and unlock feature
• Time lock feature
Product Wishes:
• Compatibility with any door
• Pre-warning system for time lock
• Manual override
Standards
• Should comply with ISO 14001 for environmental standards
• Should comply with ubiquitous computer standards as published by IEEE
8. DESIGN SPECIFICATIONS
Impact of Environment on Product
• Should not rust under corrosive environments like coastal areas or in chemical
factories
• Should not fail under extreme environmental conditions like cold climates
Impact of Product on Environment
• The materials used must be recyclable
• Should not include metal parts embedded in plastic that makes it difficult to
recycle
• Should not use any harmful chemicals or metals during manufacture
9. DESIGN SPECIFICATIONS
Lifetime of Product
• Product should operate without failure for at least 15 years
Maintenance of Product
• Insulation test after installation
• Service every 5 years
Production Cost
• Approximately LKR 5000 based on market research
10. DESIGN SPECFICATIONS
Packaging
• Bubble wrap and cardboard box
• Product manual and warranty card included
Size and Weight
• Approximate dimensions to be compatible with existing doors: 15cm * 8cm * 6 cm
• Weight : 750g
Types of Materials
• Stainless steel
• Copper
• Plastic
• Lead
11. DESIGN SPECFICATIONS
Quality
• Should use high quality materials from reputed suppliers
• Should not have any defects in mechanism or enclosure
• Durable materials for long term use
Reliability
• Should be operable for at least 1 million lock-unlock cycles
• Should not fail during extreme conditions like fire or cold
Safety
• All power supply components must be insulated
• The enclosure should prevent the burglars from tampering with the internal mechanisms
12. DESIGN SPECIFICATIONS
Installation
• Easy installation and repair
• Instruction manual should have detailed guidelines for installation
• Connected to the domestic power supply
Operation
• Programmed to lock and unlock at specific times
• Can be locked and unlocked remotely via a mobile application
• Wi-Fi, IR, or blue tooth modules can be used depending on required proximity for
operation
13. DESIGN SPECIFICATIONS
Reuse
• Damages caused to PCB components would require replacement of the whole unit
• Impact damages caused to enclosure can be repaired by replacing the enclosure only
Recycling
• The metal parts can be locally recycled
• Precious metals components can be extracted
Disposal
• Plastic components can be compressed and disposed in accordance with Sri Lankan
laws
14. FEATURES
• Easy Installation: can be attached to any preexisting double sided lock.
• Full manual override from:
• Outside : using a key
• Inside : without a key
• Can be opened & locked:
• Through SMS
• At pre-set times
• SMS Notifications
• During lock, open, manual & automatic overrides.
• Backup Battery Power
15. UNIT PRICE (PROTOTYPING)
Part Price (Rs)
ATmega328p 270
SIM900A GSM/GPRS IC Module 1950
Turnigy 1600mAh 2S 20C Lipo Pack 2300
Metal Gear 2BB Torque
RC Servo for HPI Savage XL
990
Mechanical Parts 850
TOTAL 6360
22. PROBLEMS ENCOUNTERED DURING DESIGN
• We created about 15 blueprints, each to overcome different problems.
• For example, the servo motor cannot be turned by hand, so we needed a
detaching mechanism.
• Making it failproof
• During power + battery failure
• During failure of the motor
• When there is no signal
• Making it small enough
23. MEMBER CONTRIBUTION
MEMBER NAME Index No Contribution
Abarajithan G. 150001C Finalizing Mechanical Designs
L. H. D. Malinda 150396M Electronic Design
I. R. Munasinghe 150411H Enclosure Design (Solidworks)
H. A. H. I. Perera 150448C Mechanical Drawings & Design
R. P. M. S. M. Rajapakshe 150495P Technical Assistance
I. H. Sachini 150538D Design Specs & Company Policy
M. S. P. Weerasuriya 150680E Company, Economic & Market Policy
S. Rajakaruna 150488X Blueprint Designs
I. H. Sachini 150538D Features & Company Goals
C. Wimalasuriya 150707V PCB Schematic & Layout
V. Pragatheeswaran 150476j Blueprint Assistance
K.G.G.L.A. De Silva 150103P Primary & Market Research
