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TM112: Block 2 > Part 6, Location-based computing > Flashcards

Part 6, Location-based computing Flashcards

1
Q

what is geolocation

A

this is a location using longitude and latitude

Note:

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

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2
Q

what self identifying information does IBeacon transmit

A

this transmits

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

​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
A

in which two cases does location data become personal data

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4
Q

in this use case of geofencing:

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

A

when implementing geofencing describe the use case of boundary crossing

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5
Q

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

A

describe the term

Geolocating

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6
Q

when IBeacon transmits this it could hold something like

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

A

what information does the minor hold that Ibeacon transmits

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7
Q

describe

latitude

A

these are imaginary lines parallel to the equator

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8
Q

describe the term

Location based services

A

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

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9
Q

these use coordinates that are written in degrees

A

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

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10
Q

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

A

describe what geofencing is

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11
Q

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

A

describe what the terms

Location based computing / location aware computing

refer to

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12
Q

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

A

what is the

almanic data

sent by GPS satellites

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13
Q

these are imaginary lines parallel to the equator

A

describe

latitude

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14
Q

describe what geofencing is

A

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

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15
Q

this transmits

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

what self identifying information does IBeacon transmit

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16
Q

what is the

Ephemeris data

sent by GPS satellites

A

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

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17
Q

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

A

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

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18
Q

what is the

almanic data

sent by GPS satellites

A

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

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19
Q

what is one protection that the data protection act 1998 provides

A

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

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20
Q

this is a location using longitude and latitude

Note:

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

A

what is geolocation

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21
Q
  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
A

in 6 steps give an overview of how

GPS

works

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22
Q

describe the term

Geolocating

A

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

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23
Q

what two modes might geofencing be used in

A

this may be used in the following to modes:

1. boundary crossing

2. restrictions

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24
Q

what is trackR and tile and what do they both offer

A

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
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25
Q

what is trilateration

A

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

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26
Q

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

A

when is the

Tracking the location of a device to single out a single person

not classed as personal data

27
Q

describe what the terms

Location based computing / location aware computing

refer to

A

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

28
Q

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

A

describe the term

Location based services

29
Q

what information does the Tx power hold that Ibeacon transmits

A

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

30
Q

while implementing geofencing describe the use case of placing

restrictions

A

when geofencing is used for this purpose:

restrictions could be put in place depending on whether you are inside or outside the fence

31
Q

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

A

describe longitude

32
Q

this is the point where the Greenwich meridian and equator cross,

it can be written as 0,0

A

in terms of longitude and latitude where is the

origin

and how is it written

33
Q

what is a use case of trackR and tile

A

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

34
Q

what information does the UUID hold that Ibeacon transmits

A

when IBeacon transmits this it could hold something like

a name brand such as coca cola

35
Q

in terms of longitude and latitude where is the

origin

and how is it written

A

this is the point where the Greenwich meridian and equator cross,

it can be written as 0,0

36
Q

when IBeacon transmits this it could hold something like

the name of the store that the beacon is in

A

what information does the major hold that Ibeacon transmits

37
Q

in 6 steps give an overview of how

GPS

works

A
  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
38
Q

when implementing geofencing describe the use case of boundary crossing

A

in this use case of geofencing:

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

39
Q

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

A

what is

IBeacon

40
Q

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

A

what is one protection that the data protection act 1998 provides

41
Q

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

A

these use coordinates that are written in degrees

(degrees of the greenwich meridian line, degrees of the equator)

42
Q

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

A

what is a use case of trackR and tile

43
Q

describe longitude

A

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

44
Q

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

A

describe the term

Reverse geocoding

45
Q

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

A

what information does the Tx power hold that Ibeacon transmits

46
Q

this may be used in the following to modes:

1. boundary crossing

2. restrictions

A

what two modes might geofencing be used in

47
Q

when is the

Tracking the location of a device to single out a single person

not classed as personal data

A

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

48
Q

describe the term localisation

A

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
49
Q

describe the term

Reverse geocoding

A

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

50
Q

in which two cases does location data become personal data

A

​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
51
Q

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

A

describe the term

Geocoding

52
Q

when geofencing is used for this purpose:

restrictions could be put in place depending on whether you are inside or outside the fence

A

while implementing geofencing describe the use case of placing

restrictions

53
Q

what is

IBeacon

A

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

54
Q

describe the term

Geocoding

A

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

55
Q

what information does the minor hold that Ibeacon transmits

A

when IBeacon transmits this it could hold something like

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

56
Q

what information does the major hold that Ibeacon transmits

A

when IBeacon transmits this it could hold something like

the name of the store that the beacon is in

57
Q

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

A

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

58
Q

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

A

what is the

Ephemeris data

sent by GPS satellites

59
Q

when IBeacon transmits this it could hold something like

a name brand such as coca cola

A

what information does the UUID hold that Ibeacon transmits

60
Q

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
A

what is trackR and tile and what do they both offer

61
Q

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
A

describe the term localisation

62
Q

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

A

what is trilateration

63
Q

describe the difference between trilateration and triangulation

A
  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

TM112: Block 2 (7 decks)

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