Part 6, Location-based computing

Question 1

what is geolocation

Answer 1

this is a location using longitude and latitude

Note:

this may not refer to your position but instead your internet connected devices position

Question 2

what self identifying information does IBeacon transmit

Answer 2

this transmits

1. UUID
2. major
3. minor
4. Tx power

Question 3

​this becomes personal data when:

1. It is used to identify you as an individual
2. Tracking the location of a device to single out a single person

Answer 3

in which two cases does location data become personal data

Question 4

in this use case of geofencing:

when the fence boundary is crossed by either entering or leaving then an action can occur

Answer 4

when implementing geofencing describe the use case of boundary crossing

Question 5

this is a localisation process used for locating the geolocation of an object

Answer 5

describe the term

Geolocating

Question 6

when IBeacon transmits this it could hold something like

the identifier of the individual beacon and so its location will be known

Answer 6

what information does the minor hold that Ibeacon transmits

Question 7

describe

latitude

Answer 7

these are imaginary lines parallel to the equator

Question 8

describe the term

Location based services

Answer 8

this is any service that relies on the location of the person to be useful. It will provide information based on the users current location

Question 9

these use coordinates that are written in degrees

Answer 9

what are the values of the coordinates used in the latitude longitude system

Question 10

This is the act of creating a virtual fence in which actions can take place when crossing or being inside or outside the fence

Answer 10

describe what geofencing is

Question 11

these are two synonymous terms used to describe a device or service that is aware of its location and uses this information to provide services on this positional information

Answer 11

describe what the terms

Location based computing / location aware computing

refer to

Question 12

this is data sent by the satellite and tells the receiver roughly where all other satellites are in orbit and which are most likely in its line of site

Answer 12

what is the

almanic data

sent by GPS satellites

Question 13

these are imaginary lines parallel to the equator

Answer 13

describe

latitude

Question 14

describe what geofencing is

Answer 14

This is the act of creating a virtual fence in which actions can take place when crossing or being inside or outside the fence

Question 15

this transmits

1. UUID
2. major
3. minor
4. Tx power

Answer 15

what self identifying information does IBeacon transmit

Question 16

what is the

Ephemeris data

sent by GPS satellites

Answer 16

this is data sent by the satellite and tells the receiver where it is in orbit

Question 17

when the app receives a message from an IBeacon it will carry out an action such as speaking to a central database and then carrying out relevant actions based on whats in the database and what the app was programmed to do

Answer 17

what does the app listening for IBecaons do upon receiving a message

Question 18

what is the

almanic data

sent by GPS satellites

Answer 18

this is data sent by the satellite and tells the receiver roughly where all other satellites are in orbit and which are most likely in its line of site

Question 19

what is one protection that the data protection act 1998 provides

Answer 19

this states that if personal data is being collected about you then you must be informed about the data being collected and how it is processed as well as an option to opt out

Question 20

this is a location using longitude and latitude

Note:

this may not refer to your position but instead your internet connected devices position

Answer 20

what is geolocation

Question 21

1. A satellite sends out a constant code
2. The receiver has this same code running in sync with the satellite
3. When the receiver compares the code it recieves with the code it is running it will see a time delay
4. The time delay is used to find its distance from the satellite since radio waves travel at a constant speed and the position of the satellite is known
5. When 3 distances from a satellite is known then its possible for the receiver to trilaterate its position
6. A fourth satellite may be used for precision since it should meet the same points as all the others. If it does not then the receiver re syncs its own clock until all points meet

Answer 21

in 6 steps give an overview of how

GPS

works

Question 22

describe the term

Geolocating

Answer 22

this is a localisation process used for locating the geolocation of an object

Question 23

what two modes might geofencing be used in

Answer 23

this may be used in the following to modes:

1. boundary crossing

2. restrictions

Question 24

what is trackR and tile and what do they both offer

Answer 24

these are both commercial services

what they offer

1. they allow you to attach a bluetooth LE tag to an object.
2. the tag then transmits its identifier
3. an application will listen out for the tags transmissions
4. when the app receives a transmission it will log the identifier and the location of the tag using GPS

Question 25

what is **trilateration**

Answer 25

When applied to finding the location of a receiver this works by knowing your distance from 3 or more senders and then determining your location by finding the point where all the signals meet

Question 26

this would not be classed as personal data if the data was aggregated with many other peoples data such a situation would be if you were tracking a persons visit to different stores

Answer 26

when is the **Tracking the location of a device to single out a single person** not classed as personal data

Question 27

describe what the terms **Location based computing / location aware computing** refer to

Answer 27

these are two synonymous terms used to describe a device or service that is aware of its location and uses this information to provide services on this positional information

Question 28

this is any service that relies on the location of the person to be useful. It will provide information based on the users current location

Answer 28

describe the term **Location based services**

Question 29

what information does the **Tx power** hold that Ibeacon transmits

Answer 29

when IBeacon transmits this it is the given power when you are a distance of 1 metre away. This will be hard coded upon install

Question 30

while implementing geofencing describe the use case of placing ## Footnote **restrictions**

Answer 30

when geofencing is used for this purpose: ## Footnote **restrictions could be put in place depending on whether you are inside or outside the fence**

Question 31

these are imaginary lines running in parallel from the north pole to the south pole

Answer 31

describe **longitude**

Question 32

this is the point where the Greenwich meridian and equator cross, it can be written as 0,0

Answer 32

in terms of longitude and latitude where is the **origin** and how is it written

Question 33

what is a use case of **trackR** and **tile**

Answer 33

one use case of these commercial services would be: to attach a tag to your keys. If anyone else was using the relevant application then you would be able to locate the last location of your keys

Question 34

what information does the **UUID** hold that Ibeacon transmits

Answer 34

when IBeacon transmits this it could hold something like a name brand such as coca cola

Question 35

in terms of longitude and latitude where is the **origin** and how is it written

Answer 35

this is the point where the Greenwich meridian and equator cross, it can be written as 0,0

Question 36

when IBeacon transmits this it could hold something like the name of the store that the beacon is in

Answer 36

what information does the **major** hold that Ibeacon transmits

Question 37

in 6 steps give an overview of how **GPS** works

Answer 37

1. A satellite sends out a constant code 2. The receiver has this same code running in sync with the satellite 3. When the receiver compares the code it recieves with the code it is running it will see a time delay 4. The time delay is used to find its distance from the satellite since radio waves travel at a constant speed and the position of the satellite is known 5. When 3 distances from a satellite is known then its possible for the receiver to trilaterate its position 6. A fourth satellite may be used for precision since it should meet the same points as all the others. If it does not then the receiver re syncs its own clock until all points meet

Question 38

when implementing geofencing describe the use case of **boundary crossing**

Answer 38

in this use case of geofencing: ## Footnote **when the fence boundary is crossed by either entering or leaving then an action can occur**

Question 39

Announced by apple in 2013 iBeacon is a protocol built for bluetooth low energy devices. Apps will listen out for iBeacons and act accordingly

Answer 39

what is ## Footnote **IBeacon**

Question 40

this states that if personal data is being collected about you then you must be informed about the data being collected and how it is processed as well as an option to opt out

Answer 40

what is one protection that the **data protection act 1998** provides

Question 41

what are the values of the coordinates used in the latitude longitude system

Answer 41

these use coordinates that are written in degrees (degrees of the greenwich meridian line, degrees of the equator)

Question 42

one use case of these commercial services would be: to attach a tag to your keys. If anyone else was using the relevant application then you would be able to locate the last location of your keys

Answer 42

what is a use case of **trackR** and **tile**

Question 43

describe **longitude**

Answer 43

these are imaginary lines running in parallel from the north pole to the south pole

Question 44

this refers to the process of encoding a location into a human readable format such as ‘the shard’ from a geolocation

Answer 44

describe the term ## Footnote **Reverse geocoding**

Question 45

when IBeacon transmits this it is the given power when you are a distance of 1 metre away. This will be hard coded upon install

Answer 45

what information does the **Tx power** hold that Ibeacon transmits

Question 46

this may be used in the following to modes: 1**. boundary crossing** **2. restrictions**

Answer 46

what two modes might **geofencing** be used in

Question 47

when is the **Tracking the location of a device to single out a single person** not classed as personal data

Answer 47

this would not be classed as personal data if the data was aggregated with many other peoples data such a situation would be if you were tracking a persons visit to different stores

Question 48

describe the term localisation

Answer 48

this is a term used to describe the process used in which a location is found _some examples might be_ 1. using GPS 2. using WiFi 3. using cell towers / base stations 4. using bluetooth beacons

Question 49

describe the term ## Footnote **Reverse geocoding**

Answer 49

this refers to the process of encoding a location into a human readable format such as ‘the shard’ from a geolocation

Question 50

in which two cases does **location data** become personal data

Answer 50

​this becomes personal data when: ## Footnote 1. It is used to identify you as an individual 2. Tracking the location of a device to single out a single person

Question 51

this refers to encoding a location from information such as an address into a geolocation

Answer 51

describe the term ## Footnote **Geocoding**

Question 52

when geofencing is used for this purpose: ## Footnote **restrictions could be put in place depending on whether you are inside or outside the fence**

Answer 52

while implementing geofencing describe the use case of placing ## Footnote **restrictions**

Question 53

what is ## Footnote **IBeacon**

Answer 53

Announced by apple in 2013 iBeacon is a protocol built for bluetooth low energy devices. Apps will listen out for iBeacons and act accordingly

Question 54

describe the term ## Footnote **Geocoding**

Answer 54

this refers to encoding a location from information such as an address into a geolocation

Question 55

what information does the **minor** hold that Ibeacon transmits

Answer 55

when IBeacon transmits this it could hold something like the identifier of the individual beacon and so its location will be known

Question 56

what information does the **major** hold that Ibeacon transmits

Answer 56

when IBeacon transmits this it could hold something like the name of the store that the beacon is in

Question 57

what does the app listening for IBecaons do upon receiving a message

Answer 57

when the app receives a message from an IBeacon it will carry out an action such as speaking to a central database and then carrying out relevant actions based on whats in the database and what the app was programmed to do

Question 58

this is data sent by the satellite and tells the receiver where it is in orbit

Answer 58

what is the **Ephemeris data** sent by GPS satellites

Question 59

when IBeacon transmits this it could hold something like a name brand such as coca cola

Answer 59

what information does the **UUID** hold that Ibeacon transmits

Question 60

these are both commercial services _what they offer_ 1. they allow you to attach a bluetooth LE tag to an object. 2. the tag then transmits its identifier 3. an application will listen out for the tags transmissions 4. when the app receives a transmission it will log the identifier and the location of the tag using GPS

Answer 60

what is trackR and tile and what do they both offer

Question 61

this is a term used to describe the process used in which a location is found _some examples might be_ 1. using GPS 2. using WiFi 3. using cell towers / base stations 4. using bluetooth beacons

Answer 61

describe the term localisation

Question 62

When applied to finding the location of a receiver this works by knowing your distance from 3 or more senders and then determining your location by finding the point where all the signals meet

Answer 62

what is **trilateration**

Question 63

describe the difference between trilateration and triangulation

Answer 63

1. trilateration is used to find your position using distances from known objects 2. triangulation is used to find your your position using angles (bearings) from known objects