Alcohol Analyzer PPT

ALCOHOL ANALYZER

INTRODUCTION

0Device based on non-invasive method for estimating blood alcohol content (BAC) from a breath sample.

0Portable device0Less expensive0Smaller as compared to the standard breadth

analyzers0Less accurate, but gives the user rough idea about the

alcohol content in the tester’s body

INRTO....

0Design embodies a mix of electronic and mechanical components

0Simply blowing of air required0Mainly features AT89C51 microcontroller

History

0 Dr. Robert Borkenstein (1912-2002)0 Captain with the Indiana

State Police.0 First to create a device that

measures a subject's blood alcohol level based on a breath sample.

History...

0BAC test result varies between individuals consuming identical amounts of alcohol due to race, gender, weight, genetic pre-disposition, metabolic rate.

0Two Technologies• Evidentiary machines

i. Used by police forcesii. Utilizes infrared spectrophotometer technology

• Hand-held field testing devicesi. Less accurate, but gaining popularityii. Based on electrochemical fuel cell analysis

Traffic Statistics

0 Of the 42 drivers and motorcyclists killed in 2009 with a BAC at 0.05 g/100ml or over:0 79% were males 0 31% were between 21 and 29 years

of age, 21% were aged between 30 and 39 years, 31% were aged over 40, and the remaining 17% were 20 years of age or younger

0 67% were involved in single vehicle crashes

0 55% of fatalities occurred on country roads

0 64% died in crashes that occurred between the hours of 6pm and 6am.

Existing Systems

• The 2010 BACtrack S80 Pro is a professional breathanalyzer that quickly estimates blood alcohol content (BAC). The S80 Pro is the perfect choice for law enforcement, hospitals, clinics, businesses, and for personal use anytime fuel cell accuracy is required

 • The advantages of the S80 Pro's Xtend™ Fuel Cell Technology

are numerous. First, the S80 Pro provides 4 digit test resultsthat can pickup trace amounts of alcohol – for example, 0.002 %BAC. This is helpful in zero-tolerance environments where subjects may have had only a small amount of alcohol.

This technology offers the following benefits :

• Linear response of the Xtend fuel cell provides more accurate results over the complete range of alcohol concentrations expected in the breath, from 0.000 – 0.400 %BAC.

 • Low power requirements. Get up to 1500 tests on one set of AA batteries! • Extended sensor life for long-term reliability.

Hardware RequirementsSr No. Component

1. AT89C51 – Microcontroller

2. ADC0804 – Analog to Digital Converter

3. MQ135 – Gas Sensor (Alcohol Sensor)

4. Resistors

5. Capacitors

6. LED’s

7. Voltage Regulators(IC 7805)

8. Crystal Oscillators

9. Battery and Solder Board’s

10. Push Buttons

11. Programmer Board that Burns the Hex File to the Microcontroller

12. Serial cable for connecting the programmer board with pc

Software Requirements• C Programming Language required for developing the program that calculates the BAC

level.• ASEM-51 assembler that convert the C code into the HEX file.

• Block Diagram•Typical circuitary connection of the all the components used in this project

Light Emitting Diodes(LED)

MicroController AT89C51

A/D ConverterADC0804

MQ135 Gas Sensor

Breath sampleAnalog SignalDigital SignalCalculated BAC

+-+- Power Supply

AT89C51 – Microcontroller

0Low-power, high-performance 8-bit microcomputer.

04K bytes of Flash programmable and erasable read only memory.

0Compatible with the industry standard MCS-51 instruction set and pin out.

0Highly flexible and cost-effective.

AT89C51 Features

0 4K bytes of Flash, 128bytes of RAM0 32 I/O lines0 2 16-bit timer/counters0 5 vector two-level interrupt architecture serial port0 On-chip oscillator and clock circuitry0 Supports two software selectable power saving modes.• Idle Mode stops the CPU while allowing the RAM, timer/counters,

serial port and interrupt system to continue functioning.• Power-down Mode saves the RAM contents but freezes the

oscillator disabling all other chip functions until the next hardware reset.

ADC0804(Analog to Digital Converter)

0 No Interfacing Logic Required0 Conversion Time < 100 sμ0 Easy Interface to Most

Microprocessors0 Will Operate in a “Stand Alone”

Mode0 Differential Analog Voltage

Inputs0 TTL Compatible Inputs and

Outputs0 On-Chip Clock Generator0 0V to 5V Analog Voltage Input

Range (Single + 5V Supply)

MQ135 – (Gas Sensor)

0 Features• Wide detecting scope Fast

response and High sensitivity

• Stable and long life Simple drive circuit

0 Application• Used in air quality control

equipments for buildings/office

• suitable fordetecting of NH3,NOx, alcohol, Benzene, smoke.

Blood alcohol content(BAC)

There are several ways to calculate a BAC, one of the most effective ways is to simply measure the total amount of alcohol consumed divided by the total amount of water in the body - effectively giving the percent alcohol per volume water in the blood.

The total water weight of an individual can be calculated by multiplying their body weight by their percent water.

Effects by dose

0Euphoria (BAC = 0.03 to 0.12 %)• Experience an overall improvement in mood and

possible euphoria.• Self-confident or daring• Attention span shortens

0Lethargy (BAC = 0.09 to 0.25 %)• Subject may become sleepy• Have trouble understanding or remembering things• Body movements are uncoordinated

Effects...

0Confusion (BAC = 0.18 to 0.30 %)• Profound confusion• Dizziness and staggering occur• Nausea and vomiting often occur

0Coma (BAC = 0.35 to 0.50 %)• Unconsciousness• Reflexes are depressed• Heart rate drops

0Death (BAC more than 0.50 %)• Nervous system fails, resulting in death.

Progress

0Codes related to AT89C51 is still to be formed0Rigorous testing cycles after implementation of our

project0Many new bugs and errors will be identified when the

product is made public

CONCLUSION

So far, we have completed following tasks of the project:• Research Work.• Understanding the technology.• Hardware requirements.• Designing.

QUESTIONS.....