a) Consider a test and diagnostic system, for truck engines to be used in a mech
ID: 3742079 • Letter: A
Question
a) Consider a test and diagnostic system, for truck engines to be used in a mechanical workshop. It must: monitor digital and analogue inputs from the truck, » generate complicated sequences of time-critical output test-vectors that change ac- cording to the observed behaviour of the engine, present a touch-screen graphical user interface to the operator, maintain a database of tests and results and print reports. i. Discuss some of the salient information would need to know before you could begin the high-level design of this systemExplanation / Answer
i) Salient information need to know before beginning the high level design of the system:
1. Should make a proper manual to understand about the system equipments and controls of the design.
2. Frequent Repair or replace of broken or malfunctioning components should be done.
3. Done basic diagnostic testing of the components and equipments on regular basis to detect minor problems.
4. Machinery which makes malfunctions should be detected and repaired before causing major damages.
5. Adjust and calibrate equipment and machinery to optimal specifications
6. Cleaning and lubrication of machinery and equipments to be done for proper maintenance
7. Provision for Disassemble the machinery and equipments should be there, when there is a problem
8. The signals from sensors that measure surrounding factors such as temperature, pressure, and flow rate of analog and digital signals, monitors the analog input from the trucks.
9. The most control actuators move according to analog signals to maintain complicated sequences of time critical output.
10. It is necessary to have a device that can bridge the analog signal over the interfaces using in the truck design.
11. Procedures to monitor truck utilization and determine fleet size to operate the labor productivity and utilization which maintain a database to store data and print results.
ii) Peripherals and processors mounting:
a) Mounting of peripherals in Many network interface adapters are equipped with their own diagnostics, designed to test own specialized functions for processor mounting.
b)When the machinery encounters severe problems such as malware that corrupts with system operation, defects in drivers or other low-level software should be mounted to find the defects and bug it.
c)Inconsistencies in data needed for operation, or even hardware defects,makes the system to halt or shut down in a condition that is technically called a bug check.
iii) Operating systems need to handle time critical events:
a.)Defect checks are also should undergo stop errors, kernel errors, trap errors, fatal system errors, and system crashes, and because the error information is normally displayed on a colour text-mode screen of the machinery to handle time critical events.
b) They are also informally need to handle the time critical events to fix the operating system in which the errors occur, in addition to the colour-screen text.
c) This operating system normally saves a memory dump file and then automatically restarts the system in the state of time critical events.
iv)Operating system need to handle the user interface:
a)The goal of this user interface in the operating system is to allow effective operation of the machine and control of the equipments from the human end.
b)when the machine simultaneously feeds back data that aids the operatorsdecision-making process of the broad concept of user interfaces include the interactive aspects of operating systems, hand tools, heavy machinery operator controls, and process controls.
c)Composite user interfaces (CUI) are UIs that interact with two or more senses which can be used in testing and diagnostic system of the machinery and a reliable user interface to be used which present a touch screen graphical user interface to the operator.
v) Processors used and allocation of processors in operating system:
a)Engine control module (ECM),
It is a type of electronic control unit that controls a series of actuators on an internal combustion engine to ensure performance of the engine is the major processor used in this design of the system
b)Electronic Engine Management System (EEMS).
Which is the fuel injection system has the major role to control the fuel supply of the engine. The whole mechanism of the EEMS is controlled by a stack of sensors and actuators.
c)Engines made for experimentation to test , but have full electronic control of the intake and exhaust valve opening, is the system used for the allocation of operating systems to processors.
Hope you understand and this helps you.All the best.
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