Topic 5- Organisation: School, Home and evironment
Topic 5- Organisation: School, Home and evironment
- Created by: Jamie-Lee Oliver
- Created on: 08-10-12 21:28
Topic 5- Organisation:School, Home and Environment
School registration system
- Used to record attendance
- Used for health and safety- who is in the buliding and who isn't
- Used to discoutage truancy
- Used to provide statistics to be used in comparisons with other schools
Old paper-based system
- Used paper registers
- Teachers record marks next to students
- Recorded twice a day (i.e., morning and afternoon)
- Marks added up manually by form teacher
Disadvantages of manual methos for registration
- Registers were often left unattended, which meant student could easily alter the register
Topic 5- Organisation:School, Home and Environment
- Mistakes in register entries meant registers were hard to understand
- Statistics for attendance tended only to be produced each term
- Teachers were responsible for the accuracy of the registers
- Students could register themselves adn then play truant by not attening the lessons
Computer-based methods of registration
Features include:
- Capturing students attendance automatically
- Very fast recording of attendance details
- Avoiding the misuse of the system as far as possible
- Enabling not only morning and afternoon attendance to be recorded but also attendance at each lesson
- Relatively inexpensive
- Ability to work with other ICT systems used in the school such as the system for recording student details
Topic 5- Organisation:School, Home and Environment
ICT methods available
OMR (optical mark recognition):
- Works by teachers shading in boxes on forms
- Forms are batched together
- Sent for reading by an optical mark reader
- Reports can be produced from the system
Smart Card:
- Uses a chip
- Chip is read by a reader to record attendance
- Are open to abuse by students ( you can give your card to someone else)
Swipe Cards:
Topic 5- Organisation:School, Home and Environment
- Plastic cards like a credit cards
- Contain a magnetic ***** with data on it
- Students swipe card through a reader
- Their attendance is recorded
Biometric methods
Biometric- a property of the human body, such as fingerprints or pattern on the retina that can be used to identify a person
Biometric methods include:
- Fingerprints
- Retinal scanning
Advantages of biometric methods
Topic 5- Organisation:School, Home and Environment
- There is nothing, such as a card, for a student to forget
- You have to be there to register so no- one else can do it for you and cannot be altered by students
- Performed in real times so the system knows exactly who has registered and when
Disadvantages of biometeric methods
- Biometric systems are expensive
- There are privacy issues. Some people object to fingerprinting system
- Total reliance on the ICT system
Management information system in schools
- Supply information to managers and other staff
- To enable them to make effective decisions
Examples of uses for MIS in schools
Topic 5- Organisation:School, Home and Environment
- To workout how many students will be in the new year 7 and to allocate them into forms
- To decide whether a new teacher should be employed
- To work out the best way of allocating teacher and rooms
- To decide on how best to spend the training budget to keep teachers up-to-date
Advantages of management information systems in schools
- They reduce the workload for teachers in the classroom and in the school office
- They can provide up-to-date information for parents
- They can support decision making for school managers
- They can tackle truancy effectively
- They can be used to plan timetables
Disadvanages of managment information system in schools
- They software is expensive to buy
- Student dats is personal, so there must be no unauthorized access
Topic 5- Organisation:School, Home and Environment
- The software is complex, so all staff need training
Data Logging
- Data logging is where readings are taken regularly over period of time using sensors. The main features of data logging are:
- The readings are taken automatically- there is no need for a human to be present. This means that it is much cheaper than employing a person to do this
- You can set the logging period- this is that total time over which the reader will be collected
Features of data logging
- You can set the logging rate, this is how often the readings are taken
- The sensors can be put in many locations
- The data stored is processed by a computer
- The data can be analysed
Topic 5- Organisation:School, Home and Environment
Sensors
- Sensors are used to detect and measure physical quantities
- Here are some examples of sensors:
- Temperature/heat sensors can be used in school experiment such as investigating the cooling of a hot drink in different thickness of cardboard cup. Heat sensors can be used to control; a heating system in a home or classroom
- Light sensors- detect the brightness of light. Can be used to see how light levels affect the growth of a plant. They can be used to control light that comes on automatically when it goes dark
- Sound-sensors-measure the loudness of a sound. Can be used in noise disputed
- Pressure sensors- barometric pressure sensors measure air pressure;other pressure sensors measure depth of liquid or something pressing on them
- Humidity sensors- these measure the moisture in the air
- Passive infrared sensors (PIRs)- these are the sensors used in schools adn home to detect movement
Topic 5- Organisation:School, Home and Environment
Advantages of Data Logging
- Readings always taken at exactly the right time
- Do not need anyone to take reading
- No human error when taking reading
- The system does not forget to take a reading
- Reading can be taken faster
- Can be situated in inhospitable places e.g. North Pole
- Reading can be taken 24/7
Disadvantages of data logging
- Equipment malfunction can cause wrong readings
- Equipment is expensive
- Training is needed to have expertise setting up the equipment
Control Systems
Topic 5- Organisation:School, Home and Environment
- The main components of a control systems are:
- Sensors-which are the input devices that send data to the computer/ processor
- Computer/Processor-uses a control program to decide what action to take when it receives data from the sensors
- Output Device- such as light, heaters, sprinkler system, controlled by signals from the control system
Control Systems
- Security light system
- Burglar alarm system
- Heating system
Advantages of Control Systems
- It can operate continuously 24/7
- It is cheaper- no need to pay wages
Topic 5- Organisation:School, Home and Environment
- It can work in dangerous places
- It is easy to change the way the device work by re-programming it
- It is more accurate than humans
- It can react quickly to changes in the condition
Disadvantages of Control Systems
- The initial cost of equipment is high
- The equipment can go wrong
- Fewer people are needed, so leads to unemployement
- If there is a power cut the equipment will fail
Control Systems
- Controls system work by using a series of 0's and 1's. A sensors and sent to that computer/processor for processing. The resulting weather information is then displayed in a variety of different ways such as:
Topic 5-Organisation:School, Home and Environment
- Used icons
- Graphically
- Using text
- Using numbers
- This information is usually iutput on screen
- Charts
- Animations
- Videos
Sensors used for the collection of weather data:
- Data for weather forecasting system comes from sensors:
- Heat/temperature sensors. Pressure sensors. Used to record atmospheric temperature
- Rain sensors. Used to measure rainfall
- Widn speed and wind direction sensors
- Light sensors, to record hours of sunshine
- Humidity sensors, to detect moisture in the air
Topic 5-Organisation:School, Home and Environment
Advantages of ICT based weather forecasting systems
- Data can be collected automatically
- Data is collected at exactly the correct time. Mistakes are not made when taking readings
- Weather data can be collected from remote and inhospitable locations
- Data can be transmitted using radio/satellite communication. Output can be in different formats, e.g. video, audio, etc
Disadvantages of ICT based weather forecasting system
- Equipment is expensive
- Malfunction of equipment lead to incorrect forecasts
Comments
No comments have yet been made