(13 pages required) Design of a taxi meter （proteus ISIS）

Coursework Assignment

Design of a taxi meter

Module Name: Electronic Systems Integration

Module Code: 6006ELE

Level: 6

Credit Rating: 20

Weighting: 50%

Lecturer: Dr Zhigang Ji

Contact: If you have any issues with this coursework you may contact your lecturer.

Contact details are:

Email: [email protected]

Tel: 0151 231 2505

Room: 509a, James Parson Building, Byrom Street

Issue Date: 29 January 2018

Hand-in Date: 26 March 2018

Feedback: Feedback will be given when your coursework is returned to you within three

weeks. Feedback will be both written and verbal.

Programmes: BEng (Hons) Electrical and Electronics Engineering

School of Engineering, Technology and Maritime Operations

Introduction

The objective is to design a taxi meter and simulate it using the Proteus ISIS. In this assignment, students

are required to

• Design the typical data acquisition system.

• Design the power supply to provide stable and specific voltage output.

• Analyze a hardware design problem and produce suitable design solution using microcontroller

and human/physical interfaces.

• Write program using assembly language for the microcontroller.

Learning Outcomes Assessed

LO3 Design and implement microprocessor based analogue and digital systems.

LO4 Design peripheral components for digital and analogue systems power supplies, bus structures,

memories and interfacing/signal processing circuits.

This assignment will assess elements of the above learning outcomes.

UK-SPEC Learning Outcomes

US1 Knowledge and understanding of scientific principles and methodology necessary to underpin

their education in their engineering discipline, to enable appreciation of its scientific and

engineering context, and to support their understanding of historical, current, and future

developments and technologies.

US2 Knowledge and understanding of mathematical principles necessary to underpin their education

in their engineering discipline and to enable them to apply mathematical methods, tools and

notations proficiently in the analysis and solution of engineering problems.

US3 Ability to apply and integrate knowledge and understanding of other engineering disciplines to

support study of their own engineering discipline.

E1 Understanding of engineering principles and the ability to apply them to analyse key engineering

processes.

E2 Ability to identify, classify and describe the performance of systems and components through the

use of analytical methods and modelling techniques.

E3 Ability to apply quantitative methods and computer software relevant to their engineering

discipline, in order to solve engineering problems.

E4 Understanding of and ability to apply a systems approach to engineering problems

D1 Investigate and define a problem and identify constraints including environmental and

sustainability limitations, health and safety and risk assessment issues

D2 Understand customer and user needs and the importance of considerations such as aesthetics.

D3 Identify and manage cost drivers.

D4 Use creativity to establish innovative solution

D5 Ensure fitness for purpose for all aspects of the problem including production, operation,

maintenance and disposal

D6 Manage the design process and evaluate outcomes

S1 Knowledge and understanding of commercial and economic context of engineering processes.

S3 Understanding of the requirement for engineering activities to promote sustainable

development.

P1 Knowledge of characteristics of particular materials, equipment, processes, or products.

P3 Understanding of contexts in which engineering knowledge can be applied (e.g. operations and

management, technology development, etc.)

P4 Understanding use of technical literature and other information sources

P6 Understanding of appropriate codes of practice and industry standards

P7 Awareness of quality issues

P8 Ability to work with technical uncertainty

Coursework Specification

You are required to design a taxi meter around 16 series PIC microcontroller and simulate your design

using the Proteus ISIS software on the PC side.

In minimum, the taxi meter should include the following functions:

• Taxi fare calculation:

The fare starts at £5.00, when the total travel distance is shorter than 3 miles, the total amount is

fixed at £5.00. When the total travel distance is longer than 3 miles, the amount increases by

£1.00 for a mile.

• Information display

Two types of information can be shown on one LCD display: total fare of the taxi and the total

travel distance. Fare of the taxi will be displayed in the format of XXX.X (each X indicates one digit).

The unit is pound(s). Total travel distance will be displayed with the format of XXXX, the unit is

mile(s). Switching between these two types of information display will be controlled by a push

button. Each display will stay on until the push button is pressed again.

Suitable type of switch needs to be selected and used as the input to start/stop the taxi meter. ‘ON state’

means that the trip starts and the taxi meter start to calculate the fare and travel distance. ‘OFF state’

means that the destination arrived, and the taxi meter works in the idle state.

Suitable sensor needs to be selected and used to measure the travel distance. To make it simple, the

perimeter of the wheel of the car is assumed to be 1.6 m, and therefore, 1000 cycles equal to one mile.

The power supply on the taxi is fixed +12V. You need to design a power supply to provide suitable voltage

for your designed application.

You are encouraged to use other peripherals from the library to expend the function of the system. (e.g.

decoders, latches, inverters, external memory cells, filters, Temperature sensor etc.).

You are required to implement your design by writing program for the microcontroller with either the Assembly language or other higher level languages.

Coursework Requirements

1. Use a hierarchical design methodology to break the project into a set of smaller modules which you can

eventually join together to produce the complete system. You are expected to critically evaluate the

available components for your application and choose the best suitable one. For example, what is the best

power supply structure for your design and what is the best storage method for your design.

2. Assignment specification only provides the basic function for the taxi meter. Produce a "more practical"

specification for the project. You will design a prototype to be simulated on Proteus ISIS environment, so

bear in mind what is available to you.

3. Your design should be of sufficient complexity to demonstrate your skills, but not so overly complex

that you risk not completing the project within the allotted time. For now keep it simple, add

"sophistication" when you have something that works.

5. Simulate and debug the design you create. Your designs need be simulated for demonstration.

Coursework Hand-In Requirements Once you have completed the designs, prepare for the submission process. You are required to submit a report (less than 25 pages) including:

• The detailed description of your design;

• Discussions of the components selected for the design;

• Circuit schematic with clear comments;

• The simulation results, waveforms;

• Discussions of your design problems, methods of improvement and conclusions; Refer to the report marking scheme for the detailed requirements. If your circuit is not completely functional by the due date, you should turn in what you have to receive partial credit. Late submission will be penalised. Refer to the assignment marking scheme for details.

Marking Scheme for the Coursework

Student Name: Student ID:

Outcome Below 40% 40 to 49% 50 to 59% 60 to 69% >70% Section Mark /100

Weight Weighted Mark

Introduction and Analysis Has a clear set of aims and objectives been presented? Has a detailed description of the tasks been included?

Introduction is inappropriate or missing

Has a limited introduction. Objectives are not clear

Has a satisfactory introduction. Objectives are given.

Makes good use of its introduction. Aims and objectives are clear, include some literature reviews.

Makes outstanding use of its introduction Aims and objectives are seamlessly integrated with reviews.

0.1

Current sampling/amplification circuit Have the structure and functionality of the design been clearly explained? Has the design been carried out following the correct procedure and the result clearly presented and explained? Has the following been included? • The detailed description and calculation of your design. • Circuit schematic with clear comments. • The simulation results, waveforms. • Discussions of your design problems, methods of improvement and conclusions.

Design method is not properly described. Results are substantially missing. Testing results are missing or incorrect. Discussion is missing or very limited or the student does not have a clear understanding.

Design method is not described inadequately. Some results are missing. Some testing results are missing or incorrect. Presentation is not clear. Discussion is limited or the student only has a basic understanding.

Design method is presented. Results are complete. Some mistakes in the testing results. Presentation needs improvement. Discussion is satisfactory and the student has a clear understanding.

A good description of design method. Results are complete and correct. Presentation Can be clearer. Testing results are correct with good diagrams. The significant figures are not consistently used. Discussion is of a high standard and the student has a good understanding.

A design method good description is very well described and analysed. Results are clearly presented. Testing results are professionally presented. The significant figures are not consistently used. Discussion is of a excellent standard and the student has a deep understanding.

0.1

Design a data acquisition sub-system and power supply

Same as above

Same as above

Same as above

Same as above

Same as above

0.3

Combined circuit with a LCD display Same as above

Same as above

Same as above

Same as above

Same as above

0.2 Effort on adding extra functions in the taxi meter system Same as above

Same as above

Same as above

Same as above

Same as above

0.2

Conclusions and report quality Has a reasoned evaluation been made of the work in the report? Have rational and appropriate conclusions been drawn?

Missing, poor quality

Discussions are too short and need improvement. Report meets the standard in a limited way.

Report meets the standard. Conclusions are satisfactory.

Report is of a good standard. Conclusions are of a high standard.

Report is of a professional standard. Outstanding conclusions

0.1

Final Mark

Guide to Performance Criteria

70% and above:

Your work must be of outstanding quality and fully meet the requirements of the Assignment specification

and learning outcomes stated. You must show independent thinking and apply this to your work showing

originality and consideration of key issues. There must be evidence of wider reading on the subject.

Key words which may describe a coursework at this level include: appraises, compares, concludes, contrasts,

criticizes, critiques, defends, discriminates, evaluates, explains, interprets, justifies, relates, supports.

60% - 70%:

Your work must be of good quality and meet the requirements of the coursework specification and

learning outcomes stated. You must demonstrate some originality in your work and show this by applying

new learning to the key issues of the coursework. There must be evidence of wider reading on the subject.

Key words which may describe a coursework at this level include: categorizes, combines, compiles, creates, devises,

generates, modifies, reconstructs, identifies, illustrates, outlines, synthesizes.

50% - 60%:

Your work must be comprehensive and meet all of the requirements stated by the coursework

specification and learning outcomes. You must show a good understanding of the key concepts and be

able to apply them to solve the problem set by the coursework. There must be enough depth to your work

to provide evidence of wider reading.

Key words which may describe a coursework at this level include: demonstrates, changes, applies, operates,

produces, predicts, shows, solves, uses, translates, comprehends, converts, generalizes.

40% - 50%:

Your work must be of a standard that meets the requirements stated by the coursework specification and

learning outcomes. You must show a reasonable level of understanding of the key concepts and principles

and you must have applied this knowledge to the coursework problem. There should be some evidence

of wider reading.

Key words which may describe a coursework at this level include: comprehends, defines, describes, identifies, knows,

labels, lists, matches, outlines, recalls, recognizes, reproduces, selects, states, rewrites.

Below 40%:

Your work is of poor quality and does not meet the requirements stated by the coursework specification

and learning outcomes. There is a lack of understanding of key concepts and knowledge and no evidence

of wider reading.

Extenuating Circumstances If something serious happens that means that you will not be able to complete this assignment,

you need to contact the module leader as soon as possible. There are a number of things that can be

done to help, such as extensions, waivers and alternative assessments, but we can only arrange this if

you tell us. To ensure that the system is not abused, you will need to provide some evidence of the

problem. More guidance is available at http://www.ljmu.ac.uk/corporate/SPR/60399.htm.

Any coursework submitted late without the prior agreement of the module leader will receive 0

marks.

Academic Misconduct The University defines Academic Misconduct as ‘any case of deliberate, premeditated cheating,

collusion, plagiarism or falsification of information, in an attempt to deceive and gain an unfair

advantage in assessment’. The School takes Academic Misconduct very seriously and any suspected

cases will be investigated through the University’s standard policy (Academic Misconduct Policy). If you

are found guilty, you may be expelled from the University with no award.

It is your responsibility to ensure that you understand what constitutes Academic Misconduct and to

ensure that you do not break the rules. If you are unclear about what is required, please ask.

Cheating includes:

(i) any form of communication with, or copying from, any other source during an examination; (ii) communicating during an examination with any person other than an authorised member

of staff; (iii) introducing any written, printed or other material into an examination (including

electronically stored information) other than that specified in the rubric of the examination paper;

(iv) gaining access to unauthorised material in any way during or before an assessment; (v) the use of mobile phones or any other communication device during an assessment or

examination; (vi) the submission of false claims of previously gained qualifications, research or experience

in order to gain credit for prior learning; (vii) the falsification of research data, the presentation of another’s data as one’s own, and

any other forms of misrepresentation in order to gain advantage; (viii) the submission of work for assessment that has already been submitted as all or part of

the assessment for another module without the prior knowledge and consent of the Module Leader for the subsequent assessments;

(ix) the submission of material purchased or commissioned from a third party, such as an essay-writing service, as one’s own.

Plagiarism is defined as the representation of the work, artefacts or designs, written or otherwise, of any

other person, from any source whatsoever, as the student's own. Examples of plagiarism may be as follows:

i) the verbatim copying of another's work without clear identification and acknowledgement

including the downloading of materials from the Internet without proper referencing of materials;

ii) the paraphrasing of another's work by simply changing a few words or altering the order of presentation, without clear identification and acknowledgement;

iii) the unidentified and unacknowledged quotation of phrases from another's work; iv) the deliberate and detailed presentation of another's concept as one's own.

Collusion includes:

(i) the conscious collaboration, without official approval, between two or more students in the preparation and production of work which is ultimately submitted by each in an identical or substantially similar form and/or is represented by each to be the product of his or her individual efforts;

(ii) collusion also occurs where there is unauthorised co-operation between a student and another person in the preparation and production of work which is presented as the student's own.

For more information you are directed to following the University web pages:

• Information regarding academic misconduct:

http://www.ljmu.ac.uk/studysupport/81924.htm

• Information on study skills:

http://www.ljmu.ac.uk/studysupport/

• Information regarding referencing:

http://www.ljmu.ac.uk/studysupport/69049.htm