JP2016048204A - Positioning apparatus, acquisition method and program of position information of positioning satellite - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a positioning apparatus capable of swiftly starting positioning processing with a smaller power consumption.SOLUTION: The positioning apparatus 100 includes: a GPS processing section 2 that acquires an ephemeris data representing the position of a GPS satellite S and measures the position of the positioning apparatus 100 based on the ephemeris data when a user makes a specific operation; and a GPS control section 6 that controls the GPS processing section 2 to acquire the ephemeris data before the GPS processing section 2 starts the positioning processing based on a piece of history information including the time when the positioning apparatus 100 measures the position.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a positioning apparatus, a positioning satellite acquisition method, and a program.

  2. Description of the Related Art Conventionally, for example, an apparatus for measuring a position using a GNSS (Global Navigation Satellite System) such as a GPS (Global Positioning System) is known. In this positioning device, the ephemeris data (detailed trajectory information) used in the previous positioning process is stored in the memory, and the effective ephemeris stored in the memory is stored in the subsequent positioning process. By using the data, the positioning process can be performed in a short time.

JP 2010-243193 A

  By the way, the valid period of the ephemeris data is about several hours, and when valid ephemeris data is not stored in the memory, new ephemeris data must be acquired, and it takes time until the positioning process is completed. There is a problem that it takes. That is, in order to always perform the positioning process in a shorter time, it is necessary to always store valid ephemeris data. However, if the ephemeris data transmitted from the positioning satellite is periodically received, power consumption Increases from the viewpoint of power saving.

  Therefore, an object of the present invention is to provide a positioning device, a positioning satellite position information acquisition method, and a program that can immediately start positioning processing while saving power.

In order to solve the above problems, the positioning device according to the present invention is:
In the positioning device, based on the acquisition means for acquiring position information indicating the position of the positioning satellite and the position information acquired by the acquisition means, the position of the positioning device is measured when the user performs a specific operation. The acquisition means such that the acquisition means acquires the position information before the time when the positioning means starts the positioning process based on the positioning means and history information including the time when the position of the positioning device is measured. And a control means for controlling.

In addition, the acquisition method of the position information of the positioning satellite according to the present invention,
Acquisition means for acquiring position information indicating an accurate position of the positioning satellite; and positioning means for measuring the position of the positioning device when a user performs a specific operation based on the position information acquired by the acquisition means; A positioning satellite position information acquisition method using the positioning device comprising: the positioning means based on history information including the time when the position of the positioning device is measured, before the time when the positioning means starts the positioning process. The acquisition means includes a control step for controlling the acquisition means so as to acquire the position information.

The program according to the present invention is
Acquisition means for acquiring position information indicating an accurate position of the positioning satellite; and positioning means for measuring the position of the positioning device when a user performs a specific operation based on the position information acquired by the acquisition means; The acquisition unit acquires the position information before the time when the positioning unit starts the positioning process based on the history information including the time when the position of the positioning device is measured. As described above, it functions as a control means for controlling the acquisition means.

  According to the present invention, it is possible to immediately start the positioning process while saving power.

It is a block diagram which shows schematic structure of the positioning apparatus of one Embodiment to which this invention is applied. It is a flowchart which shows an example of the operation | movement which concerns on the ephemeris data acquisition process by the positioning apparatus of FIG. It is a figure explaining the content of the measurement history data memorize | stored in the measurement history data storage part.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.
The positioning device 100 according to the present embodiment is a series of positions that are carried by a user (for example, worn on an arm) and represent a trajectory of a user's movement path using positioning (GPS positioning) by GPS (Global Positioning System). It is a device that stores data sequentially.

FIG. 1 is a block diagram showing a schematic configuration of a positioning apparatus 100 according to an embodiment to which the present invention is applied.
As shown in FIG. 1, the positioning device 100 includes a central control unit 1, a GPS processing unit 2, a sensor unit 3, an autonomous navigation control processing unit 4, a data storage unit 5, a GPS control unit 6, and a timekeeping. A unit 7, a display unit 8, an operation input unit 9, a power supply unit 10, and the like are provided.
The central control unit 1, the GPS processing unit 2, the sensor unit 3, the autonomous navigation control processing unit 4, the data storage unit 5, the GPS control unit 6, the time measuring unit 7, the display unit 8, and the power supply unit 10 are connected to the bus line 11. Connected through.

The central control unit 1 comprehensively controls each unit of the positioning device 100. Specifically, the central control unit 1, although not shown, has a CPU (Central Processing Unit), a RAM (Random Access).
Memory), ROM (Read Only Memory), and the like. Then, the central control unit 1 performs various control operations in accordance with various processing programs for the positioning device 100, and causes the display unit 8 to display the results of the control operations as necessary. At that time, the CPU stores various processing results in a storage area in the RAM, and displays the processing results on the display unit 8 as necessary.
The RAM includes, for example, a program storage area for expanding a processing program executed by the CPU, a data storage area for storing input data, a processing result generated when the processing program is executed, and the like.
The ROM stores programs stored in the form of computer-readable program codes, specifically, system programs that can be executed by the positioning device 100, various processing programs that can be executed by the system programs, and execution of these various processing programs. The data used for the storage is stored. For example, the ROM stores a positioning processing program for acquiring position data of each point on the moving route by GPS positioning.

The GPS processing unit (acquisition means, positioning means) 2 acquires ephemeris data (position information) indicating the exact position of the GPS satellite (positioning satellite) S, and performs positioning processing (GPS positioning) based on the ephemeris data. Do.
That is, the GPS processing unit 2 receives data transmitted from the GPS satellite S via the receiving antenna 2a. Specifically, the receiving antenna 2a receives GPS signals transmitted from a plurality of GPS satellites (positioning satellites; only one is shown in FIG. 1) S launched in a low earth orbit at a predetermined timing. Then, the receiving antenna 2a outputs the received GPS signal to the GPS processing unit 2.

  The GPS processing unit 2 performs a demodulation process of a GPS signal received via the receiving antenna 2a, and acquires various transmission data (for example, almanac data and ephemeris data) of the GPS satellite S. Then, the GPS processing unit 2 performs a predetermined positioning calculation based on the acquired transmission data, thereby positioning the absolute two-dimensional current position (latitude, longitude) of the own apparatus and relating to the position. Position data (for example, latitude and longitude coordinate information) is acquired as a positioning result.

  The sensor unit 3 includes a triaxial geomagnetic sensor 3a, a triaxial acceleration sensor 3b, and an atmospheric pressure sensor 3c as autonomous navigation sensors.

The triaxial geomagnetic sensor 3a detects the magnitudes of geomagnetism in the triaxial directions orthogonal to each other. Then, the triaxial geomagnetic sensor 3a outputs the detected detection signal of each axis to the autonomous navigation control processing unit 4.
The triaxial acceleration sensor 3b is an autonomous navigation sensor and detects accelerations in three axial directions orthogonal to each other. The triaxial acceleration sensor 3b samples the detected signals of the respective axes at a predetermined frequency and outputs the sampled signals to the autonomous navigation control processing unit 4.
The atmospheric pressure sensor 3c is a sensor that detects atmospheric pressure in order to obtain a height difference. Further, the atmospheric pressure sensor 3 c outputs a detection signal of the detected atmospheric pressure to the autonomous navigation control processing unit 4.

The autonomous navigation control processing unit 4 continuously performs positioning calculation of autonomous navigation based on detection data detected by the triaxial geomagnetic sensor 3a, the triaxial acceleration sensor 3b, the atmospheric pressure sensor 3c, and the like.
From the viewpoint of power saving, a series of position data representing the trajectory of the user's movement route is obtained by using GPS positioning (GPS positioning) and positioning using an autonomous navigation sensor (autonomous navigation positioning) together. You may make it memorize | store sequentially.

  The data storage unit 5 is configured by, for example, a non-volatile memory, and includes a measurement history data storage unit 5a and an ephemeris data storage unit 5b.

The measurement history data storage unit 5a sequentially registers a series of position data (not shown) along the movement route acquired by the positioning process of the own device. As shown in FIG. 3, the measurement history data storage unit 5a stores, for example, measurement date data indicating the date and day of the week when the positioning process is performed and the positioning process in association with a series of position data. Measurement start time data that represents the time when the positioning process was started, measurement end time data that represents the time when the positioning process was completed, and a movement distance that represents the distance the device moved from the start of the positioning process to the end History information such as data and calorie consumption data of the user is registered. In addition, data for a predetermined period (for example, the past three months) can be registered in the measurement history data storage unit 5a.
The calorie consumption data is obtained by multiplying the weight value of the user by the value of the travel distance data described above. The user weight data can be input in advance by operating the operation input unit 9.

The ephemeris data storage unit 5b sequentially stores the ephemeris data acquired by the GPS processing unit 2.
The ephemeris data is position information (detailed orbit information) indicating the exact position of the GPS satellite (positioning satellite) S, and the valid period of the data is about several hours (4 hours).
Therefore, when valid ephemeris data is stored in the ephemeris data storage unit 5b, the ephemeris data can be used for GPS positioning. Thereby, when the GPS processing unit 2 is started by the GPS control unit 6 described later, the GPS processing unit 2 can immediately perform GPS positioning by acquiring valid ephemeris data from the ephemeris data storage unit 5b. it can.

  The GPS control unit (control unit) 6 controls driving of the GPS processing unit 2 when performing GPS positioning. The GPS control unit 6 controls driving of the GPS processing unit 2 when acquiring ephemeris data in advance. Specifically, the GPS control unit 6 includes an estimation unit 6a and a timing specifying unit 6b.

The estimation unit 6a estimates the start time of the positioning process (GPS positioning) by the GPS processing unit 2.
That is, the estimation unit (estimating means) 6a estimates the time when the GPS processing unit 2 starts the positioning process based on the measurement date data and the measurement start time data stored in the measurement history data storage unit 5a. Specifically, for example, for the data for the most recent three months stored in the measurement history data storage unit 5a, the estimation unit 6a obtains measurement start time data for the same day of the week as the day of the week on which ephemeris data is acquired in advance. Identify and read. And the estimation part 6a calculates the average time (estimation start time) of a measurement start time from the read measurement start time data.

Further, in the measurement history data storage unit 5a, when a plurality of measurement start time data is stored on the same day, the estimation unit 6a calculates an estimation start time for each measurement start time data.
For example, the first positioning is started at 6:00 on the same day of the week three weeks ago, the first positioning is started at 6:05 on the same day of the week two weeks ago, and 5:55 on the same day of the week one week ago. When the first positioning is started, the average time 6:00 of these measurement start times is calculated as the first estimated start time. Also, the second positioning was started at 19:30 on the same day three weeks ago, the second positioning was started at 19:20 on the same day two weeks ago, and the same day 19:40 one week before the same day. When the second positioning is started, the average time 19:20 of these measurement start times is calculated as the second estimated start time.
In addition, when the estimated start time is calculated, if the measurement start time data includes protruding value data, the estimated start time is calculated by excluding the protruding value measurement start time data. Anyway.

Moreover, the estimation part 6a estimates the end time of the positioning process (GPS positioning) by the GPS processing part 2.
That is, the estimation unit (estimating means) 6a estimates the time when the GPS processing unit 2 ends the measurement based on the measurement date data and the measurement end time data stored in the measurement history data storage unit 5a. Specifically, the estimation unit 6a, for example, the day of the week on which ephemeris data is acquired in advance for the data for the most recent three months stored in the measurement history data storage unit 5a, as in the case of calculating the estimation start time The measurement end time data for the same day of the week is identified and read. And the estimation part 6a calculates the average time (estimation start time) of a measurement end time from the read measurement end time data.

Further, when a plurality of measurement end time data is stored on the same day in the measurement history data storage unit 5a, the estimation unit 6a calculates an average end time for each measurement end time data.
For example, the first positioning is finished at 7:00 on the same day three weeks ago, the first positioning is finished at 7:10 on the same day two weeks ago, and the same day is 7:05 one week ago. When the first positioning is completed, the average time 7:05 of these measurement end times is calculated as the first estimated end time. Also, the second positioning was finished at 20:45 on the same day three weeks ago, the second positioning was finished at 20:30 on the same day two weeks ago, and the same day was 20:40 one week ago. When the second positioning is completed, the average time 20:38 of these measurement end times is calculated as the second estimated end time.
In addition, when calculating the estimated end time, as in the case of calculating the estimated start time, if the measurement end time data includes a protruding value, the measured end time of the protruding value is calculated. The estimated end time may be calculated excluding data.

The timing specifying unit 6b specifies the acquisition timing of the ephemeris data by the GPS processing unit 2.
That is, the timing specifying unit (specifying unit) 6b specifies the acquisition timing of the ephemeris data by the GPS processing unit 2 based on the estimation start time and the estimation end time calculated by the estimation unit 6a. Specifically, the timing specifying unit 6b specifies, for example, a time one hour before the estimation start time calculated by the estimating unit 6a as the ephemeris data acquisition timing. When a plurality of estimation start times are calculated by the estimation unit 6a, the timing specification unit 6b sequentially specifies acquisition timings from the earliest estimation start time among the plurality of estimation start times.
Here, when the ephemeris data has already been acquired within a predetermined time (for example, 4 hours) from the estimation start time calculated by the estimation unit 6a, the GPS control unit 6 acquires the ephemeris data acquisition timing by the timing specifying unit 6b. Do not specify.
The “predetermined time” means a period during which the ephemeris data already acquired when GPS positioning is performed can be used effectively.

  When it is determined that the ephemeris data acquisition timing has been reached, the GPS control unit 6 outputs to the power supply unit 10 a signal instructing application of a voltage necessary for driving the GPS processing unit 2 from the power supply unit 10. . Thereby, the power supply unit 10 starts power supply to the GPS processing unit 2, and the GPS processing unit 2 acquires the ephemeris data based on the GPS signal received from the GPS satellite S after performing the activation operation. The ephemeris data is stored in the ephemeris data storage unit 5b.

When the ephemeris data is not acquired at the acquisition timing described above, the timing specifying unit 6b acquires the acquisition timing over the period until the estimation start time calculated by the estimation unit 6a is reached until the ephemeris data can be acquired. Re-specify. Specifically, for example, when the ephemeris data is not acquired at the ephemeris data acquisition timing, the timing specifying unit 6b respecifies the time after 10 minutes as the acquisition timing.
When the ephemeris data is not acquired before the estimation start time, the timing specifying unit 6b further acquires the ephemeris data until the estimation end time calculated by the estimation unit 6a is reached. Re-specify the acquisition timing over the period. In such a case, the time after 10 minutes is re-specified as the acquisition timing.

  When the ephemeris data is acquired at the acquisition timing described above, the GPS control unit 6 determines that it is time to stop the GPS processing unit 2 and stops the power supply from the power supply unit 10 to the GPS processing unit 2. Is output to the power supply unit 10. Thereby, the power supply part 10 stops the power supply with respect to the GPS process part 2, and the GPS process part 2 stops a drive.

  Although not shown, the timer unit 7 is configured to include, for example, a timer, a timer circuit, and the like, and acquires the time data by measuring the current time, and based on this time information, the date, day of the week, etc. Get calendar information. Then, the timer 7 outputs the acquired time information and calendar information to the memory.

  The display unit 8 is a liquid crystal display panel, for example, and reads image data for display such as various types of information and images and displays them on the display screen.

  The operation input unit 9 inputs various instructions to the positioning device 100 based on a predetermined operation by the user. Specifically, the operation input unit 9 includes, for example, a power button, up / down / left / right cursor buttons, a determination button (all not shown), and the like.

The power supply unit 10 supplies power to each unit constituting the device.
The power supply unit 10 includes, for example, various types of rechargeable batteries (for example, lithium ion batteries, nickel / hydrogen rechargeable batteries, and the like).

<Ephemeris data acquisition processing>
Next, the ephemeris data acquisition process by the positioning device 100 of the present embodiment will be described with reference to FIG.
FIG. 2 is a flowchart illustrating an example of an operation related to the ephemeris data acquisition process.

  As shown in FIG. 2, first, the estimation unit 6a, based on the measurement history data stored in the measurement history data storage unit 5a, the estimation start time and estimation end of the positioning process (GPS positioning) by the GPS processing unit 2 Time is calculated (step S1).

Next, the timing specifying unit 6b obtains the latest ephemeris data with the estimated start time estimated by the estimating unit 6a (when there are a plurality of estimated start times, the earliest estimated start time among these times). It is determined whether it is within a predetermined time (for example, 4 hours) from the time (step S2).
Here, if it is determined that it is not within a predetermined time from the latest ephemeris data acquisition time (step S2; NO), the timing specifying unit 6b specifies the ephemeris data acquisition timing (step S3). Specifically, the timing specifying unit 6b specifies, for example, the time one hour before the estimation start time estimated by the estimation unit 6a as the acquisition timing.

And the GPS control part 6 determines whether the acquisition timing which acquires ephemeris data was reached | attained (step S4).
If it is determined that the acquisition timing for acquiring the ephemeris data has not been reached (step S4; NO), the GPS control unit 6 determines that the acquisition timing has been reached (step S4; YES). The determination process in step S4 is repeatedly executed.

If it is determined in step S4 that the acquisition timing for acquiring the ephemeris data has been reached (step S4; YES), the GPS control unit 6 determines whether or not the acquisition of the ephemeris data has been successful (step S5). .
Here, if it is determined that the acquisition of the ephemeris data is successful (step S5; YES), whether or not GPS positioning is still scheduled on the same day, that is, there is still an estimation start time estimated by the estimation unit 6a. Whether or not (step S6).

If it is determined in step S6 that there is no plan to perform GPS positioning on the same day (step S6; NO), the ephemeris data acquisition process is terminated.
On the other hand, if it is determined in step S6 that there is still a plan to perform GPS positioning on the same day (step S6; YES), the estimation unit 6a returns to step S2 and starts estimation for the next GPS positioning to be performed. It is determined whether the time is within a predetermined time (for example, 4 hours) from the most recent ephemeris data acquisition time, and the subsequent processing is executed.

If it is determined in step S5 that the ephemeris data has not been successfully acquired (step S5; NO), the GPS control unit 6 determines whether or not the estimated end time estimated by the estimation unit 6a has been reached. Determination is made (step S7).
If it is determined that the estimated end time is not reached (step S7; NO), the timing specifying unit 6b respecifies the acquisition timing for acquiring the ephemeris data (step S8). Specifically, the timing specifying unit 6b sets the time 10 minutes after the time of the acquisition timing at which ephemeris data acquisition has failed to be a new acquisition timing. Then, the process returns to step S4, and the subsequent processing is executed. For example, when the estimated start time is calculated as 19:00 and the estimated end time is calculated as 21:00, acquisition of ephemeris data is started at 18:00, which is one hour before the estimated start time, If acquisition of ephemeris data fails at 0:00, ephemeris data acquisition is repeated every 10 minutes until 21:00 at the longest.
On the other hand, if it is determined in step S7 that the estimated end time is reached (step S8; YES), the process proceeds to step S6, and the subsequent processing is executed. That is, if the estimated end time is reached without obtaining the ephemeris data, it is determined that GPS positioning of the time from the estimated start time to the estimated end time is not performed.

  If it is determined in step S2 that the GPS positioning estimation start time is within a predetermined time (eg, 4 hours) from the most recent ephemeris data acquisition time (step S2; YES), the process proceeds to step S6. And subsequent processing. In other words, if the GPS positioning estimation start time is within a predetermined time from the most recent ephemeris data acquisition time, the GPS positioning can be performed using the latest ephemeris data, so the processing of steps S3 to S5 is performed. Skipping.

As described above, according to the positioning device 100 of the present embodiment, the GPS processing unit 2 is controlled based on the measurement history information stored in the measurement history data storage unit 5a. The time when the next positioning process according to 2 is started can be predicted.
Therefore, the time when the next positioning process is started by the GPS processing unit 2 can be predicted, so that the effective ephemeris data is acquired at the time of the positioning process before the time when the next positioning process is started. Can be kept.
Thereby, it is possible to prevent the ephemeris data from being acquired unnecessarily before the time when the next positioning process by the GPS processing unit 2 is started, and power saving can be achieved. In addition, since the effective ephemeris data can be acquired at the time of the positioning process before the time when the next positioning process is started, the positioning process can be started immediately.

Moreover, when ephemeris data is not acquired at the acquisition timing specified last time, the next acquisition timing is specified by the timing specifying unit 6b, so that it is possible to flexibly deal with the acquisition of ephemeris data.
On the other hand, if the ephemeris data is not acquired even when the estimated end time is reached, it is determined that the next positioning process by the GPS processing unit 2 is not performed, and by stopping the ephemeris data acquisition timing, It is possible to prevent waste of electric power accompanying the acquisition of ephemeris data.

  In addition, the estimation start time and the estimation end time are estimated using the measurement history information of the same day as the day of the week on which the ephemeris data is acquired by the GPS processing unit 2 from the measurement history information stored in the measurement history data storage unit 5a. Therefore, for example, it is possible to estimate the estimated start time and the estimated end time in consideration of the user's habits, and to improve usability.

  Further, when the estimated start time is within a predetermined time from the acquisition time of the ephemeris data already acquired by the GPS processing unit 2, the acquisition timing specification is stopped. This makes it possible to effectively use already acquired ephemeris data and reduce power consumption associated with acquiring ephemeris data again.

The present invention is not limited to the above-described embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention.
For example, in the above embodiment, when the estimation start time is estimated by the estimation unit 6a, the mode value of the measurement start time data on the same day of the week as the day of the week on which the ephemeris data is acquired in advance is used. The estimated start time may be used.

  In the above embodiment, the time one hour before the estimated start time is specified as the ephemeris data acquisition timing, but this acquisition timing is an example and can be arbitrarily changed as appropriate. That is, for example, for weekdays, the time one hour before the estimated start time is specified as the acquisition timing, while for Saturday and Sunday, the estimated start time You may make it specify acquisition timing according to a user's habits, such as specifying the time 30 minutes ago as acquisition timing.

  Further, in the above embodiment, when the ephemeris data is not acquired even when the estimated start time is reached, for example, even before the estimated end time is reached, the acquisition timing is reached after a predetermined time has elapsed from the estimated start time. The identification may be stopped. In addition, it is determined whether or not the user is in a moving state (for example, a running state, a walking state, etc.) by the triaxial acceleration sensor 3b. Alternatively, the acquisition timing specification may be stopped.

  In the above embodiment, the measurement history data storage unit 5a stores history information such as measurement date data, measurement start time data, measurement end time data, travel distance data, calorie consumption data, and the ephemeris. The ephemeris data acquired by the GPS processing unit 2 is sequentially stored in the data storage unit 5b. However, the present invention is not limited to this. For example, the history information and the ephemeris data are stored in a server on a communication network by a cloud system. You may make it keep. And you may make it acquire log | history information and ephemeris data from this server via a communication part.

Although the embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, and includes the scope of the invention described in the claims and an equivalent scope thereof.
The invention described in the scope of claims attached to the application of this application will be added below. The item numbers of the claims described in the appendix are as set forth in the claims attached to the application of this application.
[Appendix]
<Claim 1>
In the positioning device,
Acquisition means for acquiring position information indicating the position of the positioning satellite;
Positioning means for measuring the position of the positioning device when a user performs a specific operation based on the position information acquired by the acquisition means;
Control for controlling the acquisition means so that the acquisition means acquires the position information before the time when the positioning means starts the positioning process based on history information including the time when the position of the positioning device is measured Means,
A positioning device comprising:
<Claim 2>
The control means includes
Estimating means for estimating the time at which the positioning means starts the positioning process based on the history information including the measurement start time when the positioning process is started;
Based on an estimation start time estimated by the estimation means, and specifying means for specifying an acquisition timing for acquiring the position information,
The positioning device according to claim 1, wherein the control unit controls the acquisition unit so as to acquire the position information at the acquisition timing.
<Claim 3>
The specifying means is:
The positioning device according to claim 2, wherein when the position information is not acquired at the acquisition timing, a next acquisition timing is specified.
<Claim 4>
The estimation means includes
Based on the history information including the measurement end time when the positioning process ends, estimate the time when the positioning means ends the positioning process,
If the position information is not acquired before the estimation start time, the specifying means repeatedly executes the process of specifying the acquisition timing until the estimation end time estimated by the estimation means is reached. The positioning device according to claim 3, wherein
<Claim 5>
The estimation means includes
5. The estimated start time is estimated using the history information including information corresponding to a date having a predetermined relationship with a date on which the position information is acquired by the acquiring means. The positioning device according to any one of the above.
<Claim 6>
The estimating means further includes:
5. The estimated end time is estimated using information corresponding to a day having a predetermined relationship with a date on which the position information is acquired by the acquiring unit in the history information. Positioning device.
<Claim 7>
The control means includes
The specification of the acquisition timing by the specifying means is not performed when the estimated start time is within a predetermined time from the time when new location information is acquired. The positioning device according to item.
<Claim 8>
Acquisition means for acquiring position information indicating the position of the positioning satellite;
A positioning satellite position information acquisition method using the positioning device comprising: positioning means for measuring the position of the positioning device when a user performs a specific operation based on the position information acquired by the acquisition means. There,
Control for controlling the acquisition means so that the acquisition means acquires the position information before the time when the positioning means starts the positioning process based on history information including the time when the position of the positioning device is measured A method for acquiring position information of a positioning satellite, comprising: a step.
<Claim 9>
Acquisition means for acquiring position information indicating the position of the positioning satellite;
A computer of the positioning device comprising positioning means for measuring the position of the positioning device when a user performs a specific operation based on the position information acquired by the acquiring means;
Control for controlling the acquisition means so that the acquisition means acquires the position information before the time when the positioning means starts the positioning process based on history information including the time when the position of the positioning device is measured means,
A program characterized by functioning as

100 positioning device 1 central control unit 2 GPS processing unit 3 sensor unit 4 autonomous navigation control processing unit 5 data storage unit 5a measurement history data storage unit 5b ephemeris data storage unit 6 GPS control unit 6a estimation unit 6b timing specification unit

Claims (9)

In the positioning device,
Acquisition means for acquiring position information indicating the position of the positioning satellite;
Positioning means for measuring the position of the positioning device when a user performs a specific operation based on the position information acquired by the acquisition means;
Control for controlling the acquisition means so that the acquisition means acquires the position information before the time when the positioning means starts the positioning process based on history information including the time when the position of the positioning device is measured Means,
A positioning device comprising: The control means includes
Estimating means for estimating the time at which the positioning means starts the positioning process based on the history information including the measurement start time when the positioning process is started;
Based on an estimation start time estimated by the estimation means, and specifying means for specifying an acquisition timing for acquiring the position information,
The positioning device according to claim 1, wherein the control unit controls the acquisition unit so as to acquire the position information at the acquisition timing. The specifying means is:
The positioning device according to claim 2, wherein when the position information is not acquired at the acquisition timing, a next acquisition timing is specified. The estimation means includes
Based on the history information including the measurement end time when the positioning process ends, estimate the time when the positioning means ends the positioning process,
If the position information is not acquired before the estimation start time, the specifying means repeatedly executes the process of specifying the acquisition timing until the estimation end time estimated by the estimation means is reached. The positioning device according to claim 3, wherein The estimation means includes
5. The estimated start time is estimated using the history information including information corresponding to a date having a predetermined relationship with a date on which the position information is acquired by the acquiring means. The positioning device according to any one of the above. The estimating means further includes:
5. The estimated end time is estimated using information corresponding to a day having a predetermined relationship with a date on which the position information is acquired by the acquiring unit in the history information. Positioning device. The control means includes
The specification of the acquisition timing by the specifying means is not performed when the estimated start time is within a predetermined time from the time when new location information is acquired. The positioning device according to item. Acquisition means for acquiring position information indicating the position of the positioning satellite;
A positioning satellite position information acquisition method using the positioning device comprising: positioning means for measuring the position of the positioning device when a user performs a specific operation based on the position information acquired by the acquisition means. There,
Control for controlling the acquisition means so that the acquisition means acquires the position information before the time when the positioning means starts the positioning process based on history information including the time when the position of the positioning device is measured A method for acquiring position information of a positioning satellite, comprising: a step. Acquisition means for acquiring position information indicating the position of the positioning satellite;
A computer of the positioning device comprising positioning means for measuring the position of the positioning device when a user performs a specific operation based on the position information acquired by the acquiring means;
Control for controlling the acquisition means so that the acquisition means acquires the position information before the time when the positioning means starts the positioning process based on history information including the time when the position of the positioning device is measured means,
A program characterized by functioning as

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