Lpdgenerator NPM

lpdgenerator

Linked parking data generator, generates dumps of parking data in the form of linked data.

This generator tries to mimic the real world by creating events of interest that give people a reason to park somewhere.

First install lpdgenerator:

npm install lpdgenerator -s

const lpdgenerator = require('lpdgenerator');

var generator = new lpdgenerator();
var output_files = generator.generate();

This output_files is an array with elements of this structure:

{
	city // The city number that is described in this file
	file_time // The time that this file describes
	result // The linked data
}

There could be multiple files of one city when the files split.

And then run the program with an input file as parameter:

node myprog <input-file>

There is an example input file in the root.

Name	Description	Default
cities:number	The number of generated cities	1
parkings:min_num_per_city	The minimum number of parkings per city	1
parkings:max_num_per_city	The maximum number of parkings per city	1
parkings:min_spaces	The minimum number of spaces per parking	100
parkings:max_spaces	The maximum number of spaces per parking	100
parkings:min_min_occupation	The minimum value of the standard occupation	0.1
parkings:max_min_occupation	The maximum value of the standard occupation	0.3
time:start	The time from which the generation starts	"1970-00-00T00:00:00"
time:end	The time at which the generation stops	"1970-00-00T01:00:00"
time:time_per_file	The amount of time in seconds that will be put in one file	3600
time:interval	The interval in seconds at which the parkings get updated	30
file:output_meta_data	Bool to see if meta data should be put in the file	false
file:split	If files of cities should be split, if false will ignore "time:time_per_file"	true
events:day_variables	An object that should contain the variables for every day of the week	see later
events:change_rate	The rate at which the parameters of the event distributions should change in minutes	1

The variables in "events:day_variables" will denote how events will be generated for that day.

Name	Description	Default
min_events	Minimum number of events that day	0
max_events	Maximum number of events that day	1
min_duration	Minimum duration of the events	0
max_duration	Maximum duration of the events	1
min_occupation	Minimum occupation of an event	0
max_occupation	Maximum occupation of an event	1
mean	Events get generated via a Normal distribution. This is the mean of that distribution	12
standard_deviation	The standard diviation for the distribution	1