WEARABLE ELECTRONIC APPARATUS, DATA ANALYZER, AND TRAVEL RECORD CONTROL METHOD

• US 20140046588A1
• Filed: 08/06/2013
• Published: 02/13/2014
• Est. Priority Date: 08/07/2012
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Maezawa, Hidekazu, Otsuka, Junichi, Shimoda, Kazunori
• Granted Patent: US 9,372,096 B2
• Time in Patent Office: Days
• US Class Current: 701/487
• CPC Class Codes: A61B 5/681 Wristwatch-type devices
• CPC Class Codes: A63B 24/0062 Monitoring athletic performances, e.g. for determining the work of a user on an exercise apparatus, the completed jogging or cycling distance
• CPC Class Codes: G01C 22/00 Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers, using pedometers
• CPC Class Codes: G01C 22/006 Pedometers
• CPC Class Codes: G01S 19/19 Sporting applications
• CPC Class Codes: G06Q 10/0639 Performance analysis of employees; Performance analysis of enterprise or organisation operations

Abstract

An electronic apparatus refers to location measurement information measured in the past at each time when the latest location measurement information is output from a location measurement module with a predetermined measurement period, if measurement accuracy is good and it is regarded that a direction change has been made, determines the latest location measurement information as saving “necessary” and stores the information. If the measurement accuracy is no good or it is regarded that a positioning point shown by the latest location measurement information is an intermediate point during linear traveling, the latest location measurement information is not saved. Therefore, a data size to be saved is made smaller than that in related art and draining of a battery taken for writing of data is reduced.

Claims

1. A wearable electronic apparatus comprising:

a measurement unit that measures a location with a predetermined period;

a distance display control unit that performs display control by computing an accumulated travel distance based on measurement results in the measurement unit;

a determination unit that determines whether or not the measurement result in the measurement unit is saved with reference to the measurement results in the past at each time of measurement in the measurement unit;

a memory control unit that allows a memory unit to store the measurement result in the measurement unit if the determination unit makes a positive determination; and

an external output control unit that performs control of outputting data of the measurement result stored in the memory unit to an external device.

2. The apparatus according to claim 1, wherein the determination unit determines that the measurement result is saved if a direction change condition showing that a movement direction has changed based on the measurement result of the measurement unit is satisfied.

3. The apparatus according to claim 2, wherein the measurement unit measures the location based on satellite signals and measures at least the movement direction based on Doppler of the satellite signals, and

the determination unit determines whether or not the direction change condition is satisfied based on the movement direction measured by the measurement unit.

4. The apparatus according to claim 3, wherein the measurement unit determines that the measurement result is not saved if the movement direction measured by the measurement unit and a travel direction based on the locations measured by the measurement unit do not satisfy a predetermined approximate condition.

5. The apparatus according to claim 1, further comprising a travel distance memory control unit that allows the memory unit to store the accumulated travel distances at longer time intervals than the predetermined period in a temporal sequence,

wherein the external output control unit further outputs data of the accumulated travel distances stored in the memory unit to the external device.

6. The apparatus according to claim 1, further comprising:

a lapse time display control unit that performs display control of a lapse time from a start of computation of the accumulated travel distance;

a lapse time memory control unit that allows the memory unit to store the lapse time in correspondence with the measurement result stored by the memory control unit in the memory unit; and

a section time information memory control unit that allows the memory unit to store section time information as the lapse time at each time when the accumulated travel distance reaches a predetermined section distance or a time taken for traveling of the section distance,

wherein the external output control unit further outputs data of the lapse times and data of the section time information stored in the memory unit to the external device.

7. A data analyzer comprising:

a reception unit that receives data output from the wearable electronic apparatus according to claim 6; and

an interpolation unit that, if there is no data of the measurement result corresponding to the section time information among the data received by the reception unit, interpolates and generates the measurement result corresponding to the section time information based on data of sequential lapse times of the section time information and data of the measurement results corresponding to the lapse times.

8. A travel record control method executed by an electronic apparatus worn on a body, comprising:

measuring a location with a predetermined period;

performing display control by computing an accumulated travel distance based on measurement results by the measurement;

determining whether or not the measurement result by the measurement is saved with reference to the measurement results in the past at each time of the measurement;

allowing a memory unit to store the measurement result by the measurement if the determination as to whether or not the measurement result is saved is a positive determination; and

performing control of outputting data of the measurement result stored in the memory unit to an external device.