BumpRecorderUser's Manual

2015.5.18
BumpReocrder Co., Ltd.
http://www.bumprecorder.com/
1

AttentionsFor your safety- Smartphone might be placed tightly on the vehicle,
and don't ﬂy away when a vehicle is running and stopping.
- Please don't operate smartphone when you drive a vehicle.
- Please don't watch smartphone display long time when you drive a vehicle.

For recording accuracy- Smartphone might be placed tightly on the vehicle.
- It is recommended that it is included 2 km or longer driving distance in one recording data.
- It is recommended that it is included two times or more for start, stop, right turn, left turn.
- Smartphone is placed where it can see the sky to receive GPS satellite radio signal.

Available device- Android Smartphone OS version 2.3 or later. It is recommended 4.4 or later.
- Smartphone has built-in GPS and 3 dimensional accelerometer.
It is recommended built-in gyroscope and barometer too.
- Accelerometer sampling cycle must be over 50Hz. It is recommended over 100Hz.
You can check sampling cycle on BumpRecorder [Graph] tab.

2

Install BumpRecorder on your Smartphone

BumpRecorder is installed from Google Play. It cansearch BumpRecorder or Bump Navi.	

3

Smartphone placement
It can be placed any directions, but it should be placed tightly on the vehicle.	
Example : Good placement

Bad placement

Not only fixed atleft and right, butalso bottom side.	

It use裏面を耐震	
sticky sheet on
ゲルシートで固定	
the bottom side.	

Only fixed at left andright side, but not fixedbottom side. It willoccurs unexpectedvibrations.	

4

App Screen : [Navi] tab
Map mode	tap to change	

Roughness indicator	

North up	Heading up	

Driving speed	Driving distance	Red : uneven	

Light blue : even	

Bump mark	

Current position	

Recording time	Elevation graph	

Recording button	

tap to start/stop	Red mark is indicate recording now.	

Acceleration graph	5App Screen : [Graph] tab
Driving speed	

Recording time	Driving distance	Elevation graph	

Acceleration graph	

Recording button	

tap to start/stop	Red mark is indicate recording now.	

Estimated vehicle
specifications	6

App Screen : [List] tab - data list of your smartphone -Selecting checkbox	

Recording date time	Driving distance	

User comment	

tap to input	

tap to display on
the map	

Data delete	

Data upload	

7

App Screen : [Web] tab - data list on the server side -Recording date time	Starting position	

Latitude and longitude	

Driving distance	

Country	Address	

Japan address only	

8App Screen : [Setting] tab

ID setting	Get free ID from	

http://map.bumprecorder.com/Users/registerFree	
When you use paid service, please contact us from	

http://www.bumprecorder.com/contact	

9Data File Format of BumpRecorder
Data	  ﬁle	  will	  record	  on	  /data/BumpRecorder/	  folder	  for	  recording	  date	  and	  7me.	  
Data	  ﬁle	  will	  record	  for	  each	  recording	  and	  each	  sensors.	
Accelera7on,	  gyro,	  magne7c	  ﬁeld,	  air	  pressure,	  light	  will	  record	  when	  smartphone	  has	  these	  sensors.	
Data	  sample	  DeviceTime1416963906970
03
4
5
5
6

Header line		 HardTime	 X	 117915340330000	 	 0	 -119	 84	 -166	 146	 -112	 273	 -104	 348	 -98	 448	 -113

Basis line	DeviceTime 	time : epoch seconds [ms]	

HardTime	time : hard wear time [ns]		 Y	 Z	 	 1002	 972	 1007	 951	 1021	 945	 7	 	 -2	 	 38	 	 -86	 	 36	 	 -15	 

Basis lines : It has 1 line for each 10 sec.	

Data lines : It has 1 line for each records.	

Data line	DeviceTime 	time : Interval time from previous basis line DeviceTime. [ms]	

HardTime	time : Interval time from previous basis line HardTime. 1=0.1[ms]	
X, Y, Z	

Recording value		
It is quantization value by using following rate.	
Unit for each sensors	

Acceleration 	 [m/s2]	

Gyroscope 	[rad/s]	

Magnetic	

[μT]	

Pressure	[hP]	

Light	

[lux]	

Quantization rate for each sensors	 
Acceleration 	

1024 / 9.8	Gyroscope 	

1024	

Magnetic	 10	Pressure	 100	Litht	 1	Attentions : Pressure and light has only X value.	

10