Altimeter, electronic timepiece, and program

• US 10,066,938 B2
• Filed: 05/04/2016
• Issued: 09/04/2018
• Est. Priority Date: 05/08/2015
• Status: Active Grant

• Current Assignee: Seiko Instruments Incorporated (Seiko Group)
• Original Assignee: Seiko Instruments Incorporated (Seiko Group)
• Inventors: Nomura, Takayuki, Koyama, Kazuhiro, Shimizu, Hiroshi
• Primary Examiner(s): Bolduc, David
• Application Number:
  US15/146,727
• Publication Number:
  US 20160327387A1
• Time in Patent Office: 853 Days
• CPC Class Codes: A61B 2560/0242 adapted to measure environmental factors, e.g. temperature, pollution
• CPC Class Codes: A61B 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/681 Wristwatch-type devices
• CPC Class Codes: A63B 29/00 Apparatus for mountaineering helmets A42B3/00; non-skid devices or attachments for footwear, e.g. crampons, A43C15/00; breathing masks or helmets for use at high altitudes A62B18/00; picks B25D7/00
• CPC Class Codes: G01C 5/06 by using barometric means

Abstract

An electronic timepiece includes a display unit, an altitude measurement unit that measures an altitude, a RAM that stores an ascent integrated altitude plan value which is a plan value of an ascent integrated altitude value, and a CPU that calculates the ascent integrated altitude value obtained by integrating an altitude variation amount during an ascent, based on an altitude measured by the altitude measurement unit, that calculates an ascent achievement ratio which is an achievement ratio of the ascent integrated altitude value with respect to the ascent integrated altitude plan value, and that causes the display unit to display the ascent achievement ratio.

Claims

1. An altimeter comprising:

a display unit;

an altitude measurement unit that measures an altitude;

an altitude integration unit that calculates an ascent integrated altitude value obtained by integrating an altitude variation amount during an ascent, based on the altitude measured by the altitude measurement unit;

a storage unit that stores an ascent integrated altitude plan value which is a plan value of the ascent integrated altitude value;

an achievement ratio calculation unit that calculates an ascent achievement ratio which is an achievement ratio of the ascent integrated altitude value with respect to the ascent integrated altitude plan value; and

a display control unit that causes the display unit to display the ascent achievement ratio.

2. The altimeter according to claim 1,

wherein the altitude integration unit calculates a descent integrated altitude value obtained by integrating an altitude variation amount during a descent, based on the altitude measured by the altitude measurement unit,

wherein the storage unit stores a descent integrated altitude plan value which is a plan value of the descent integrated altitude value,

wherein the achievement ratio calculation unit calculates a descent achievement ratio which is an achievement ratio of the descent integrated altitude value with respect to the descent integrated altitude plan value, and

wherein the display control unit causes the display unit to display the descent achievement ratio.

3. The altimeter according to claim 1, further comprising:

an input unit that receives an input,

wherein if the input unit receives a predetermined input, the achievement ratio calculation unit sets the integrated altitude plan value, based on the integrated altitude value previously calculated by the altitude integration unit, and calculates the achievement ratio, based on the set integrated altitude plan value.

4. The altimeter according to claim 3,

wherein the storage unit stores an absolute value of the ascent integrated altitude value obtained when the predetermined input is received, as the descent integrated altitude plan value,

wherein the altitude integration unit calculates the descent integrated altitude value based on the altitude obtained when the predetermined input is received, and

wherein the achievement ratio calculation unit calculates the descent achievement ratio which is an achievement ratio of the descent integrated altitude value with respect to the descent integrated altitude plan value.

5. The altimeter according to claim 2, further comprising:

an input unit that receives an input,

wherein if the input unit receives a predetermined input, the achievement ratio calculation unit causes the storage unit to store a value obtained by adding an absolute value of the ascent integrated altitude value and an absolute value of the descent integrated altitude value which are obtained when the predetermined input is received, as the ascent integrated altitude plan value and the descent integrated altitude plan value, calculates the ascent achievement ratio, based on the ascent integrated altitude plan value stored in the storage unit, and calculates the descent achievement ratio, based on the descent integrated altitude plan value stored in the storage unit.

6. The altimeter according to claim 2, further comprising:

an input unit that receives an input,

wherein if the input unit receives a predetermined input, the altitude integration unit calculates the ascent integrated altitude value by deducting an absolute value of the descent integrated altitude value obtained after the predetermined input is received from an absolute value of the ascent integrated altitude value obtained when the predetermined input is received, and calculates the descent integrated altitude value by deducting an absolute value of the ascent integrated altitude value obtained after the predetermined input is received from an absolute value of the descent integrated altitude value obtained when the predetermined input is received.

7. The altimeter according to claim 6,

wherein if the input unit receives the predetermined input, the display control unit changes a display method of the achievement ratio.

8. The altimeter according to claims 1,

wherein the display control unit causes the display unit to display at least one of altitude measured by the altitude measurement unit, speed based on the altitude variation amount, and a time, together with the achievement ratio.

9. The altimeter according to claim 2,

wherein the display control unit causes the display unit to display at least one of altitude measured by the altitude measurement unit, speed based on the altitude variation amount, and a time, together with the ascent achievement ratio and the descent achievement ratio.

10. The altimeter according to claim 1,

wherein the display control unit causes the display unit to display the achievement ratio which can visibly identify a size, based on a display area, and displays the achievement ratio so that a direction in which the display area for displaying the ascent achievement ratio increases and a direction in which the display area for displaying the descent achievement ratio increases are opposite to each other in the display unit.

11. The altimeter according to claim 1, further comprising:

a solar cell that generates power required for display of the display unit,

wherein the solar cell generates the power by using light received while the altitude measurement unit measures the altitude.

12. An electronic timepiece comprising:

the altimeter according to claims 1; and

a clocking function,

wherein the display control unit enables the display unit to display a time clocked by the clocking function.

13. A program that causes a computer of an altimeter to execute a process comprising:

an altitude measurement step of measuring an altitude;

an altitude integration step of calculating an ascent integrated altitude value obtained by integrating an altitude variation amount during an ascent, based on the altitude measured in the altitude measurement step;

an achievement ratio calculation step of calculating an ascent achievement ratio which is an achievement ratio of the ascent integrated altitude value with respect to an ascent integrated altitude plan value which is a plan value of the ascent integrated altitude value; and

a display control step of causing a display unit to display the ascent achievement ratio.