JP3398585B2 - Portable speed / distance meter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a GP according to a necessary measurement timing when a speed / distance meter using a GPS receiver is constructed by a small device such as a wrist watch.
The present invention relates to a portable speed / distance meter that achieves effective use and power saving of electric power by supplying electric power to an S receiver.

[0002]

2. Description of the Related Art GPS (Global Positioning System:
Global positioning system) is about 20,200K on the earth
Of the 24 GPS satellites that orbit 6 m orbits with an inclination angle of 55 degrees in about 12 hours, 3 to 3 are the easiest to receive.
The navigation data necessary for positioning is received by a receiver on the earth from four or more satellites, and the propagation delay time is measured to calculate the positioning of the user's position, moving direction, moving speed, etc. .

Here, the transmission frequencies of the GPS satellites are frequency L1 (1.57542 GHz) and frequency L2 (1.2).
2760 GHz), but the C / A code whose code is open to the public for free is 1.57542 GHz.
Since the signal is transmitted at (frequency L1), frequency L1 is used for general positioning. The frequency L1 is PSK (phase shift keying) modulated by a pseudo noise code (C / A code for identifying the satellite and a synthetic wave of the satellite orbit and navigation data such as satellite orbit information and time information), and spread spectrum spread. And sent.

FIG. 21 shows a schematic structure of a conventional GPS receiver for receiving radio waves (frequency L1) transmitted from GPS satellites. In the figure, 2100 is a receiving antenna for receiving radio waves from GPS satellites, 2101. Received L
An L-band amplifier circuit for amplifying a band signal, 2102 is a local oscillation circuit for generating a signal for converting a received signal into a signal of a desired frequency, and 2103 is a received signal and a signal generated by the local oscillation circuit 2102. A down converter circuit for performing signal conversion by multiplication, 2104 is a voltage comparison circuit for digitally converting the signal from the down converter circuit 2103, 2105 is a C / A code generation circuit for generating a C / A code, 2106 is a voltage comparison circuit 2104. C / A generated by the C / A code generation circuit 2105 to the signal input from
A message decoding circuit for multiplying the navigation data and the carrier wave phase information corresponding to the pseudo distance by a code, and 2107 are positioning calculation circuits for calculating positioning data using the navigation data and the carrier wave phase information input from the message decoding circuit 2106, respectively. Shows.

The receiving operation of the GPS receiver configured as above will be described. The L-band amplifier circuit 2101 selectively amplifies the 1.57542 GHz signal received by the receiving antenna 2100. Then, the down converter circuit 21
03 receives the signal amplified by the L-band amplifier circuit 2101 and uses the signal generated by the local oscillator circuit 2102 to convert the input signal into a first IF of several tens of MHz to 200 MHz.
Converted to (intermediate frequency) signal and further 2MHz to 5MHz
To a second IF signal of the order of magnitude. Voltage comparison circuit 210
Reference numeral 4 inputs the second IF signal from the down converter circuit 2103, and performs digital conversion with a clock that is several times the IF signal. This output is spread spectrum data (digital signal).

In the message decoding circuit 2106, the digital signal output from the voltage comparison circuit 2104 is despread with the C / A code (the same pseudo noise code as the GPS satellite) generated in the C / A code generation circuit 2105, and the navigation data is obtained. And carrier phase information corresponding to the pseudo distance is obtained.

This operation is performed for a plurality of GPS satellites, and usually the positioning calculation circuit 2107 obtains the positioning data from the navigation data and carrier phase information of the four satellites. The positioning data obtained by the positioning calculation circuit 2107 is output to a CPU (not shown) that controls the operation of the entire device or is output to the outside as a digital signal.

Recently, such GPS receivers have been
It is used as a car navigation system by combining position information of PS and map information of a CD-ROM.

As a portable GPS receiver, for example, JP-A-4-351981 "GPS receiver" is used.
Is disclosed. This GPS receiver is the above-mentioned G
It has a PS reception function, calculates the latitude, longitude, altitude, and current time of the current position, and further calculates and displays the azimuth and distance. In particular, here, a solar cell is provided on the cover of the receiving device main body to supply electric power.

Further, there has been proposed a device which can measure a moving speed and a moving distance by using a GPS receiver.

[0011]

However, in the above-mentioned conventional technique, when power is supplied from a large-capacity vehicle battery such as a vehicle-mounted GPS receiver, the power consumption is relatively high. G without restrictions
Although the PS receiver can be operated, when a GPS receiver is mounted on a small device such as a wrist watch to configure a speed / distance meter, the power source is also small. The problem was how to effectively use and save power.

The present invention has been made in view of the above, and when a speed / distance meter using a GPS receiver is constructed with a small device such as a wristwatch, GPS reception is performed according to a necessary measurement timing. The first goal is to effectively use and save power by supplying power to the machine.
The purpose of.

Further, the present invention has been made in view of the above, and in the case where the GPS receiver cannot always perform positioning processing by supplying electric power to the GPS receiver in accordance with a necessary measurement timing. Even if there is, the second purpose is to enable highly accurate measurement of speed and distance.

[0014]

In order to achieve the above object, in a portable speed / distance meter according to claim 1,
A moving speed calculation means for calculating the moving speed of the user while walking or running using the positioning result of the GPS receiver, and a moving distance of the user by using the moving speed calculated by the moving speed calculation means. In a portable speed / distance meter having a moving distance calculating means, a GPS satellite
Received from GPS that receives and measures longitude and latitude
A receiver and a GPS receiver that supplies power to the GPS receiver.
The power supply of the transceiver, the operation signal generating means for generating an operation signal representing the operation of the user, and the operation signal generated by the operation signal generating means are input, and the operation state of the user is determined based on the input operation signal. The state change determination means for determining whether or not the state has changed, and when the state change determination means determines that the operation state of the user has changed, the GPS receiver is powered on, and after a predetermined time elapses. And a power supply control means for turning off the power supply of the GPS receiver, wherein the moving speed calculation means is operated by the power supply control means.
When the power of the PS receiver is turned on, the positioning result of the GPS receiver is used to perform a plurality of times of moving speed arithmetic processing to acquire a plurality of moving speed data, and a plurality of acquired moving speeds are acquired. The average moving speed within the predetermined time is calculated from speed data, and the moving distance calculating means uses the latest average moving speed calculated by the moving speed calculating means as the current moving speed to calculate the moving distance. It is something that is calculated.

That is, in the portable speed / distance meter according to the first aspect, it is determined whether the operating state of the user has changed, and when the operating state of the user has changed, the GPS receiver is powered on. Then, after a lapse of a predetermined time, the GPS receiver is turned off, and when the GPS receiver is turned on, the positioning result of the GPS receiver is used to calculate the moving speed a plurality of times. Is executed to obtain a plurality of moving speed data, calculate an average moving speed within a predetermined time from the acquired plurality of moving speed data, and use the latest average moving speed as the current moving speed. , By calculating the moving distance, power can be intermittently supplied to the GPS receiver, and positioning processing by the GPS receiver is performed at the timing when the moving speed of the user is expected to change. Obtains the moving speed Te, then it is possible to obtain the movement distance using a movement speed obtained.

Further, in the portable speed / distance meter according to claim 2, in the portable speed / distance meter according to claim 1, the operation signal generating means outputs the operation signal as the operation signal.
The movement of the user is detected, a walking pitch or a running pitch is obtained from the detected movement of the user to generate a pitch signal, and the state change determination means inputs the pitch signal generated by the motion signal generation means and inputs the pitch signal. When the pitch signal changes more than a preset allowable value, it is determined that the operation state of the user has changed.

That is, in the portable speed / distance meter according to the second aspect, the movement of the user is detected, the walking pitch or the running pitch is obtained from the detected movement of the user, and the pitch signal is generated. When it changes more than the set allowable value, it is determined that the user's operation state has changed, and the positioning process by the GPS receiver is performed at the timing when the walking or running speed of the user is expected to change, and the moving speed is changed. Then, the moving distance can be calculated using the calculated moving speed.

Further, in the portable speed / distance meter according to claim 3, in the portable speed / distance meter according to claim 1, the operation signal generating means outputs the operation signal as the operation signal.
The user's movement is detected, the arm swing strength is obtained from the detected user's movement to generate an arm swing signal, and the state change determination means inputs the arm swing signal generated by the motion signal generation means, and inputs it. When the arm swing signal changes by more than a preset allowable value, it is determined that the operation state of the user has changed.

That is, in the portable speed / distance meter according to the third aspect, the motion of the user is detected, the arm swing strength is obtained from the detected user motion, and the arm swing signal is generated.
Positioning processing by the GPS receiver at the timing when the walking or running speed of the user is expected to change by determining that the user's motion state has changed when the arm swing signal has changed by a preset allowable value or more. Then, the moving speed can be obtained, and then the moving distance can be obtained using the obtained moving speed.

Further, in the portable speed / distance meter according to a fourth aspect, in the portable speed / distance meter according to the first aspect, the operation signal generating means outputs the operation signal as the operation signal.
The user's pulse is detected, a pulse signal is generated based on the detected pulse, the state change determination means inputs the pulse signal generated by the operation signal generation means, and the input pulse signal has a preset allowable value. When the above changes occur, it is determined that the operating state of the user has changed.

That is, in the portable speed / distance meter according to the fourth aspect, the pulse of the user is detected, the pulse signal is generated based on the detected pulse, and the pulse signal is changed to a preset allowable value or more. In this case, by determining that the operating state of the user has changed, positioning processing by the GPS receiver is performed at the timing when the walking or running speed of the user is expected to change, and the moving speed is obtained, and then the obtained movement The velocity can be used to determine the distance traveled.

Further, in the portable speed / distance meter according to claim 5, in the portable speed / distance meter according to any one of claims 1 to 4, the power supply control means is the After the power of the GPS receiver is turned off, the power of the GPS receiver is turned on when the state change determination means does not determine that the operation state of the user has changed before a preset time elapses. It is turned on for a predetermined time.

That is, in the portable speed / distance meter according to claim 5, after turning off the power source of the GPS receiver,
If it is not determined that the user's operating state has changed before the preset time elapses, the GPS receiver is turned on for a predetermined period of time, which causes a large change in the user's operating state. It is possible to deal with a change in the moving speed that does not occur.

The portable speed / distance meter according to a sixth aspect is the portable speed / distance meter according to any one of the first to fifth aspects, further comprising movement by a moving speed calculation means. The power supply control means includes a calculation execution designating means for designating the execution of the speed calculation, and when the power supply control means designates the execution of the moving speed calculation, the G
The power of the PS receiver is turned on for a predetermined time.

That is, in the portable speed / distance meter according to the sixth aspect of the present invention, it is possible to specify the execution of the movement speed calculation, and when the execution of the movement speed calculation is specified, the GPS reception is performed. By turning on the power of the machine for a predetermined time, it is possible to perform the moving speed calculation processing at a proper timing when it is known that the moving speed changes, such as when entering a slope.

Further, in the portable speed / distance meter according to claim 7, in the portable speed / distance meter according to any one of claims 1 to 6, the moving speed calculation means is When calculating the average moving speed within a predetermined time,
The average moving speed is calculated by excluding the moving speed data having the maximum value and the minimum value from the acquired moving speed data.

That is, in the portable speed / distance meter according to the seventh aspect, when calculating the average moving speed within a predetermined time, the maximum and minimum values of the moving speed data are acquired from the plurality of acquired moving speed data. By calculating the average moving speed excluding the speed data, it is possible to prevent variations in the values of the plurality of moving speed data serving as a reference for obtaining the average moving speed.

Further, in the portable speed / distance meter according to claim 8, in the portable speed / distance meter according to any one of claims 1 to 6, the moving speed calculation means is the When calculating the average moving speed within a predetermined time,
The average moving speed is calculated by excluding moving speed data having a value exceeding a preset upper limit value or lower limit value from the obtained plurality of moving speed data.

That is, in the portable speed / distance meter according to the eighth aspect, when calculating the average moving speed within a predetermined time, an upper limit value and a lower limit which are preset from a plurality of acquired moving speed data are set. By calculating the average moving speed excluding the moving speed data having a value exceeding the value, it is possible to prevent variations in the values of the plurality of moving speed data serving as a reference for obtaining the average moving speed.

Further, in a portable speed / distance meter according to a ninth aspect, in the portable speed / distance meter according to any one of the first to eighth aspects, positioning by the GPS receiver is further provided. During the processing and the movement speed calculation processing by the movement speed calculation means, an operation signal determination means for determining whether or not the operation signal generated by the operation signal generation means includes an unsteady signal is provided. When the power supply control means determines that the operation signal includes an unsteady signal in the operation signal determination means, the power supply of the GPS receiver is turned off, and After the passage
The process of turning on the power of the GPS receiver again is performed, and when the movement speed calculation means determines that the movement signal includes an unsteady signal, the movement signal calculation means moves the movement. The moving speed data acquired by the speed calculation process is cleared, and when the power source of the GPS receiver is turned on, the moving speed calculation process is executed to again acquire the moving speed data. Is.

That is, in the portable speed / distance meter according to the ninth aspect, whether or not the operation signal includes a non-stationary signal during execution of the moving speed arithmetic processing using the GPS receiver. When it is determined that the operation signal includes a non-stationary signal, the GPS receiver is turned on.
After the FF, and after the preset time has passed, the process of turning on the power of the GPS receiver is performed again, and when it is determined that the operation signal includes an unsteady signal, Clear the moving speed data acquired in the calculation process, and
When the power of the PS receiver is turned on, the processing of calculating the moving speed and the processing of acquiring the moving speed data are executed again, so that the GPS receiver can be operated when the user makes an unsteady movement. It is possible not to perform the positioning process and the moving speed calculation process used.

[0032]

BEST MODE FOR CARRYING OUT THE INVENTION The portable speed / speed according to the present invention will now be described.
Embodiments of a rangefinder will be described in detail with reference to the accompanying drawings. In the embodiments, description is made assuming that a wristwatch constitutes a portable speed / distance meter. However, the portable speed / distance meter according to the present invention is not limited to a wristwatch. .

(First Embodiment) FIG. 1 is a block diagram showing a configuration of a portable speed / distance meter according to the first embodiment. The portable speed / distance meter shown in FIG. 1 receives a radio wave transmitted from a plurality of GPS satellites 100 and measures the longitude / latitude (see FIG. 2 for a schematic configuration).
1)), and a body including an acceleration sensor, a gyro sensor, etc., which detects a user's motion such as arm swing motion or vibration when the foot lands, and generates a motion signal called a body motion signal according to the user's motion. A motion detection sensor 102 (corresponding to the motion signal generation means of the present invention) and an AMP (amplifier) 103 that amplifies the body motion signal generated by the body motion detection sensor 102.
And an A / D converter 104 for converting a body motion signal amplified by the AMP 103 into a digital signal, and an A / D converter 104
When the body motion signal converted into a digital signal is input, the walking pitch or running pitch is calculated from the input body motion signal to generate a pitch signal, and the generated pitch signal changes beyond a preset allowable value. When the user's operation state is changed in the state change determination process and the state change determination process that determine that the user's operation state has changed, the GPS receiver 101 is powered on, and after a predetermined time elapses. , A power supply control process for turning off the power of the GPS receiver 101, and when the power of the GPS receiver 101 is turned on in the power supply control process, the positioning result of the GPS receiver 101 is used to calculate the moving speed a plurality of times. A moving speed calculation process for executing a process to acquire a plurality of moving speed data and calculating an average moving speed within a predetermined time from the acquired plurality of moving speed data And by utilizing the latest average moving speed calculated by the moving speed calculation processing as the current moving speed, to move the distance calculation processing for calculating a moving distance CPU
105 (corresponding to the moving speed calculating means, moving distance calculating means, operation signal generating means, state change determining means, power supply control means and operation signal determining means of the present invention), and LCD
CPU 105 for controlling the display panel 106 including
And an LCD drive circuit 107 for displaying the moving speed and moving distance calculated in step 1.

In FIG. 1, 108 is the CPU 10.
5 is a ROM storing the operation program, and 109 is a C
RAM used as a work area of PU105,
Reference numeral 110 denotes an input switch (corresponding to the calculation execution designating means of the present invention) for instructing the start of measurement of speed and distance.
11 is an OSC (oscillation circuit) that generates a reference frequency signal,
Reference numerals 113 denote buzzer drive circuits that control the alarm buzzer 112 that generates a buzzer sound.

Next, the operation of the portable speed / distance meter constructed as described above will be described. First, the schematic operation of the portable speed / distance meter according to the first embodiment will be described with reference to FIG. In a portable speed / distance meter, a user's movement is detected, a running (walking) pitch is obtained from the detected user's movement, a pitch signal is generated, and when the pitch signal changes beyond a preset allowable value. The process of determining that the user's operation state has changed is repeated. Figure 2
The solid line shown in (a) shows that the running pitch of the user is gradually decreasing, and the broken line is the average value of the running pitch in the measurement period t described below. Then, the value of the current running pitch is subtracted from the average value of the running pitch, and when the absolute value exceeds the allowable value, it is determined that the running pitch has changed, that is, the operating state of the user has changed.

In the embodiment of the present invention, since it is assumed that the wristwatch constitutes the portable speed / distance meter, the GPS receiver 101 is always supplied with power from the viewpoint of power consumption and the positioning process is continued. That is impossible. Therefore, assuming that the timing at which power is supplied to the GPS receiver 101 changes when the user's operating state changes, power consumption is suppressed by intermittently turning the GPS receiver 101 on and off.

As shown in FIG. 2C, when it is determined that the operating state of the user has changed, the GPS receiver 101 is powered on for a predetermined measurement period t. During this measurement period t, the positioning data of the GPS receiver 101 is used to perform a plurality of times of moving speed arithmetic processing to obtain a plurality of speed data v1 to v8. Then, a plurality of speed data v1
The average moving speed during the measurement period t is calculated using v8.

The average moving speed obtained as described above is used as the moving speed of the user until it is determined that the operating state of the user has changed based on the running pitch shown in FIG. 2 (a). That is, each time it is determined that the operating state of the user has changed, the process of obtaining the average moving speed is repeated as shown in FIG. FIG. 2D shows a state in which the processing is repeated in this way and the obtained average moving speed changes. Also, FIG.
FIG. 2B shows changes in the moving speed (average moving speed) of the user during running. The change in the average moving speed shown in FIG. 2D is similar to that in FIG. 2B. Almost equal.

Then, as shown in FIG. 2E, in order to obtain the moving distance, the product of the average moving speed shown in FIG. 2D and the elapsed time from the start of measurement is obtained. Obtainable.

Then, using the flowchart of FIG.
The operation of the portable speed / distance meter according to the first embodiment will be described in detail. FIG. 3 is a flowchart showing an operation procedure of the portable speed / distance meter according to the first embodiment.

The user wears the portable speed / distance meter on his / her arm, turns on the power of the GPS receiver 101 via the input switch 110 (S301), and then starts the stopwatch to start running (moving start). Yes (S3
02, S303). Here, starting the stopwatch means starting measurement of speed / distance. In addition, here, the moving speed and the moving distance are measured during running, but of course the same processing can be performed even while walking.

By the start of the stopwatch, CP
U105 performs a process of measuring the moving speed of the user using the positioning result by the GPS receiver 101 (S30).
4). That is, the CPU 105 controls the GPS receiver 101
Using the positioning result obtained by, the moving speed is calculated and speed data is obtained.

Further, the CPU 105 uses the body movement detecting sensor 1
The body motion signal generated by detecting the running motion of the user is input in 02 and the running pitch of the user is measured (S305: pitch signal). The running pitch is obtained by frequency analysis of the body movement signal obtained from the body movement detection sensor 102 (F
It can be obtained by performing FT).

Subsequently, the CPU 105 determines whether or not an instruction to stop the stopwatch has been input (S306). When an instruction to stop the stopwatch is input, the acquired moving speed data is used to perform an after-mentioned process to calculate an average moving speed and a final moving distance is calculated and displayed (S317, S31).
8). On the other hand, when the instruction to stop the stopwatch is not input, it is determined whether or not the acquisition of a certain number of speed data is completed (S307).

If it is determined in step S307 that the acquisition of a certain number of speed data has not been completed, the process returns to step S304 to execute the moving speed measuring process. On the other hand, when it is determined that the acquisition of the fixed number of speed data is completed, the GPS receiver 101 is powered off (S308).

In other words, G only during the predetermined measurement period t
The power of the PS receiver 101 is turned on, and a process of acquiring a plurality of speed data is performed during that time. As a result, it is possible to execute the moving speed calculation processing a plurality of times during the measurement period t and acquire a plurality of speed data v1 to v8 (FIG. 2).
(See (c)).

Then, the CPU 105 calculates the average moving speed (see FIG. 2D), the average pitch Pa (see the broken line in FIG. 2A) and the stride during the measurement period t using the following formulas. And execute (S309 to S31
1). The stride calculation can be performed as needed.

Average pitch Pa (times / min) = wave number / ΔT average moving speed (m / min) = (Σ (i = 1, n) · v
i) / n stride (m) = average moving speed / average pitch Pa

When the portable speed / distance meter according to the first embodiment is applied to a wristwatch, the moving speed of the user includes an error due to the influence of arm swing, but a plurality of speed data are acquired, By obtaining the average of them, the error due to the influence of arm swing can be reduced (the same applies when the GPS receiving antenna is attached to the arm).

Subsequently, the CPU 105 calculates a moving distance by using the obtained average moving speed and the elapsed time elapsed from the start of running, and performs a process of displaying it on the display panel 106 together with the average moving speed (S312).

After that, the CPU 105 determines whether or not there is an input for instructing the stop of the stopwatch (S313), and if there is an input for instructing the stop, the processing is ended as it is.

On the other hand, if there is no input for instructing stop, a process for measuring the pitch P is performed (S31).
4). That is, the CPU 105 controls the body movement detection sensor 10
The body movement signal is input from 2 and the running pitch of the user is calculated.

After obtaining the pitch P in step S314,
From the obtained pitch P, the CPU 105 executes step S310.
The average pitch Pa obtained in step 1 is subtracted, and it is determined whether or not the absolute value is equal to or greater than a preset set value (allowable value) (S315). In other words, by determining whether or not the running pitch of the user has changed significantly, it is determined whether or not the operating state of the user has changed.

If the calculated absolute value is not greater than or equal to the set value (less than or equal to the set value), the process returns to step S312, the current moving distance is calculated, and the average moving speed obtained in step S309 is displayed on the display panel 106. Perform processing.

On the other hand, if the calculated absolute value is equal to or greater than the set value, it means that the operating state of the user has changed. Therefore, after turning on the power of the GPS receiver 101 (S31).
6), the processes of steps S304 to S315 are performed.

The above-mentioned processing is executed until the stopwatch is stopped by the user.

As described above, according to the portable speed / distance meter according to the first embodiment, the change of the user's operation state is detected by the change of the user's walking pitch or running pitch, and the user's operation state is changed. In this case, the GPS receiver 101 is turned on for a certain period of time, the moving speed is calculated and obtained, and the moving distance is calculated using the obtained moving speed. Therefore, it is necessary for the positioning of the GPS receiver 101. Power consumption can be suppressed, and effective use of power and power saving can be achieved. As a result, it is possible to obtain a portable speed / distance meter that can be sufficiently mounted on a timepiece that can incorporate only a small battery.

(Second Embodiment) In the portable speed / distance meter according to the second embodiment, in the portable speed / distance meter described in the first embodiment, the GPS receiver 101 is turned off.
After that, if it is not determined that the user's operation state (pitch) has changed before the preset time elapses, the power of the GPS receiver 101 is turned on for a predetermined time.
However, the positioning process and the moving speed calculation process are performed regardless of the change in the operating state (pitch) of the user.

Since the configuration of the portable speed / distance meter according to the second embodiment is as shown in FIG. 1, the description of the configuration is omitted here.

Next, the portable speed according to the second embodiment
The operation of the rangefinder will be described. FIG. 4 shows the second embodiment.
4 is a flowchart showing an operation procedure of the portable speed / distance meter according to the present invention. In FIG. 4, steps that are the same as the steps in FIG. 3 already described are given the same step numbers, and only different steps will be described.

In the portable speed / distance meter according to the second embodiment, the process of acquiring a plurality of speed data is completed,
After powering off the GPS receiver 101 in step S308, a predetermined time is set in a timer (not shown) and the timer is started (S401).

Then, in step S315, the average pitch Pa obtained in step S310 and step S31 are set.
When it is determined that the absolute value of the pitch P difference obtained in 4 is not equal to or greater than the set value, it is further determined whether the timer time (constant time) set in step S401 has elapsed (S402).

If it is determined in step S402 that the fixed time has not elapsed, the process returns to step S312 and the processes up to step S315 are executed. On the other hand, when it is determined that the fixed time has elapsed, the process proceeds to step S316, the GPS receiver 101 is powered on, and even when it is not determined that the operating state of the user has changed, the positioning process is forcibly performed. And the calculation processing of the moving speed is executed.

As described above, according to the portable speed / distance meter according to the second embodiment, the power source of the GPS receiver 101 is OF
If it is not determined that the operation state of the user has changed before the preset time elapses after F,
By turning on the power of the GPS receiver 101 for a predetermined time, it is possible to cope with a change in the moving speed that does not significantly appear as a change in the operating state of the user. Therefore, the positioning process by the GPS receiver 101 is always performed. Even if it is not possible, it is possible to measure speed and distance with high accuracy.

(Third Embodiment) The portable speed / distance meter according to the third embodiment is the same as the portable speed / distance meter described in the first embodiment when there is no change in the walking pitch or running pitch of the user. Input switch 1
When the execution of the calculation of the moving speed is designated through 10, the power of the GPS receiver 101 is turned on to execute the positioning process and the moving speed calculation process.

Since the configuration of the portable speed / distance meter according to the third embodiment is as shown in FIG. 1, the description of the configuration is omitted here.

Next, the portable speed / speed according to the third embodiment
The operation of the rangefinder will be described. FIG. 5 shows the third embodiment.
4 is a flowchart showing an operation procedure of the portable speed / distance meter according to the present invention. In FIG. 5, steps that are the same as the steps in FIG. 3 already described are given the same step numbers, and only different steps will be described.

In the portable speed / distance meter according to the third embodiment, when it is determined in step S315 that the absolute value of the difference between the average pitch Pa and the pitch P is not equal to or larger than the set value, the input switch 110 is further operated. It is determined whether or not there is an input for instructing the calculation processing of the moving speed via (S5).
01).

If it is determined in step S501 that there is no input for instructing the calculation processing of the moving speed,
The process returns to step S312 and the processes up to step S315 are executed. On the other hand, if it is determined that the input for instructing the calculation processing of the moving speed is made, the process proceeds to step S316, the power of the GPS receiver 101 is turned on, and even if it is not determined that the operation state of the user has changed. , Forcefully execute the positioning process and the moving speed calculation process.

As described above, according to the portable speed / distance meter according to the third embodiment, it is possible to specify the execution of the moving speed calculation, and the execution of the moving speed calculation is specified. In this case, by turning on the power of the GPS receiver 101 for a predetermined time, as in the case of entering a slope,
Since it is possible to perform the arithmetic processing of the moving speed with good timing when it is known that the moving speed changes, high accuracy is achieved even when the positioning processing by the GPS receiver 101 cannot always be performed. You can measure speed and distance.

Although detailed description is omitted, it is obvious that the portable speed / distance meter according to the third embodiment can be applied to the portable speed / distance meter according to the second embodiment.

(Embodiment 4) The portable speed / distance meter according to Embodiment 4 uses the arm of the user as the criterion for determining whether or not the operating state of the user has changed, not the walking pitch or running pitch of the user. This is the swing strength.

The configuration of the portable speed / distance meter according to the fourth embodiment is the same as that shown in FIG. 1, so detailed description thereof will be omitted. However, the difference from the first embodiment is as shown in FIG. In addition, the CPU 105 obtains the amplitude (arm swing signal) of the body motion signal input from the body motion detection sensor, uses this amplitude as the arm swing strength of the user, and when the amplitude of the body motion signal changes, the arm swing strength That is, it means that the power supply of the GPS receiver 101 is turned on and the calculation processing of the moving speed is executed assuming that the operation state of the user has changed.

Next, the operation of the portable speed / distance meter according to the fourth embodiment will be described. FIG. 7 is a flowchart showing an operation procedure of the portable speed / distance meter according to the fourth embodiment. Note that in FIG. 7, the same steps as the steps of FIG. 3 already described are given the same step numbers, and only different steps will be described.

In step S304, after the processing of measuring the moving speed of the user by using the positioning result by the GPS receiver 101, the CPU 105 is generated by detecting the running motion of the user by the body movement detecting sensor 102. A body movement signal is input and the amplitude of the body movement signal is measured (S70).
1).

Then, the CPU 105 acquires a plurality of speed data, calculates the average moving speed (see FIG. 6D) and stride during the measurement period t, and calculates the average amplitude W.
a is calculated (S702).

Subsequently, the CPU 105 calculates a moving distance using the obtained average moving speed and the elapsed time after starting running, and performs a process of displaying the moving distance on the display panel 106 together with the average moving speed (S312), and then stops. When there is no input for instructing to stop the watch (S313), the process of measuring the amplitude W of the body movement signal is performed (S703).

After obtaining the amplitude W in step S713, C
The PU 105 subtracts the average amplitude Wa obtained in step S702 from the obtained amplitude W and determines whether the absolute value is equal to or greater than a preset value (allowable value) (S).
704). In other words, by determining whether the amplitude of the body motion signal has changed significantly, it is determined whether the user's arm swing strength has changed significantly, and whether the user's motion state has changed. To judge.

Thereafter, if the calculated absolute value is not greater than or equal to the set value (less than or equal to the set value), the process returns to step S312 to calculate the current moving distance, and the average moving speed calculated in step S309 is displayed on the display panel 106. Perform the display process.

On the other hand, if the calculated absolute value is equal to or greater than the set value, it means that the operating state of the user has changed. Therefore, after turning on the GPS receiver 101 (S31).
6), the processes of steps S304 to S704 are performed.

As described above, according to the portable speed / distance meter according to the fourth embodiment, the change in the user's motion state is detected by the change in the amplitude of the body movement signal, that is, the user's arm swing strength, and GPS receiver 1 when the operating state changes
Since the power source of 01 is turned on for a certain period of time to calculate and calculate the moving speed, and the moving distance is calculated using the calculated moving speed, power consumption required for positioning the GPS receiver 101 is suppressed. Therefore, effective use of power and power saving can be achieved. As a result, it is possible to obtain a portable speed / distance meter that can be sufficiently mounted on a timepiece that can incorporate only a small battery.

(Fifth Embodiment) In the portable speed / distance meter according to the fifth embodiment, the GPS receiver 101 is turned off in the portable speed / distance meter described in the fourth embodiment.
After that, when it is not determined that the operation state (amplitude: arm swing strength) of the user has changed before the preset time elapses, the GPS receiver 101 is powered on for a predetermined time, The positioning process and the moving speed calculation process are performed regardless of changes in the user's operating state (amplitude: arm swing strength).

Since the configuration of the portable speed / distance meter according to the fifth embodiment is as shown in FIG. 1, the description of the configuration is omitted here.

Next, the portable speed / speed according to the fifth embodiment
The operation of the rangefinder will be described. FIG. 8 shows the fifth embodiment.
4 is a flowchart showing an operation procedure of the portable speed / distance meter according to the present invention. In FIG. 8, steps that are the same as the steps in FIGS. 3 and 7 already described are given the same step numbers, and only different steps will be described.

In the portable speed / distance meter according to the fifth embodiment, the process of acquiring a plurality of speed data is completed,
After powering off the GPS receiver 101 in step S308, a predetermined time is set in a timer (not shown) and the timer is started (S801).

Thereafter, in step S704, the average amplitude Wa obtained in step S702 and step S703 are set.
When it is determined that the absolute value of the difference between the amplitudes W obtained in step S3 is not equal to or greater than the set value, it is further determined whether the timer time (constant time) set in step S801 has elapsed (S802).

If it is determined in step S802 that the fixed time has not elapsed, the process returns to step S312 and the processes up to step S704 are executed. On the other hand, when it is determined that the fixed time has elapsed, the process proceeds to step S316, the GPS receiver 101 is powered on, and even when it is not determined that the operating state of the user has changed, the positioning process is forcibly performed. And the calculation processing of the moving speed is executed.

As described above, according to the portable speed / distance meter according to the fifth embodiment, the power source of the GPS receiver 101 is OF
If it is not determined that the operation state of the user has changed before the preset time elapses after F,
By turning on the power of the GPS receiver 101 for a predetermined time, it is possible to cope with a change in the moving speed that does not significantly appear as a change in the operating state of the user. Therefore, the positioning process by the GPS receiver 101 is always performed. Even if it is not possible, it is possible to measure speed and distance with high accuracy.

(Sixth Embodiment) The portable speed / distance meter according to the sixth embodiment is the same as the portable speed / distance meter described in the fourth embodiment when the walking pitch or running pitch of the user does not change. Input switch 1
When the execution of the calculation of the moving speed is designated through 10, the power of the GPS receiver 101 is turned on to execute the positioning process and the moving speed calculation process.

Since the structure of the portable speed / distance meter according to the sixth embodiment is as shown in FIG. 1, the description of the structure is omitted here.

Next, the portable speed / speed according to the sixth embodiment
The operation of the rangefinder will be described. FIG. 9 shows the sixth embodiment.
4 is a flowchart showing an operation procedure of the portable speed / distance meter according to the present invention. In FIG. 9, steps that are the same as the steps of FIGS. 3 and 7 already described are given the same step numbers, and only different steps will be described.

In the portable speed / distance meter according to the sixth embodiment, when it is determined in step S704 that the absolute value of the difference between the average amplitude Wa and the amplitude W is not equal to or larger than the set value, the input switch 110 is further turned on. It is determined whether there is an input for instructing the calculation processing of the moving speed via (S90).
1).

If it is determined in step S901 that there is no input for instructing the calculation processing of the moving speed,
The process returns to step S312 and the processes up to step S704 are executed. On the other hand, if it is determined that the input for instructing the calculation processing of the moving speed is made, the process proceeds to step S316, the power of the GPS receiver 101 is turned on, and even if it is not determined that the operation state of the user has changed. , Forcefully execute the positioning process and the moving speed calculation process.

As described above, according to the portable speed / distance meter according to the sixth embodiment, it is possible to specify the execution of the moving speed calculation, and the execution of the moving speed calculation is specified. In this case, by turning on the power of the GPS receiver 101 for a predetermined time, as in the case of entering a slope,
Since it is possible to perform the arithmetic processing of the moving speed with good timing when it is known that the moving speed changes, high accuracy is achieved even when the positioning processing by the GPS receiver 101 cannot always be performed. You can measure speed and distance.

Although detailed description is omitted, it is obvious that the portable speed / distance meter according to the sixth embodiment can be applied to the portable speed / distance meter according to the fifth embodiment.

(Embodiment 7) The portable speed / distance meter according to Embodiment 7 uses not the walking pitch or running pitch or arm swing strength of the user as a criterion for determining whether or not the operating state of the user has changed. , Based on the user's pulse.

FIG. 10 is a block diagram showing the configuration of a portable speed / distance meter according to the seventh embodiment. The portable speed / distance meter shown in FIG. 10 has a pulse detection unit 1001 for detecting a user's pulse and inputting a pulse signal to the CPU 105, instead of the body motion detection sensor 102, as shown in FIG. It is different from a portable speed / distance meter.

The pulse detecting section 1001 is attached, for example, to the user's finger or around the wrist, and detects the pulse according to the blood flow of the user. Then, as shown in FIG. 11, the GPS receiver 101 changes the pulse of the user in the same manner as the pitch and amplitude described in the first to sixth embodiments.
It is used as a reference for turning on the power supply of.

Next, the operation of the portable speed / distance meter according to the seventh embodiment will be described. FIG. 12 shows the seventh embodiment.
4 is a flowchart showing an operation procedure of the portable speed / distance meter according to the present invention. In addition, in FIG. 12, FIG.
Steps that are the same as those in Step 1 are given the same step numbers, and only different steps will be described.

In step S304, after the processing of measuring the moving speed of the user by using the positioning result by the GPS receiver 101, the CPU 105 causes the pulse detecting section 10 to operate.
The pulse signal generated by detecting the user's pulse in 01 is input, and the pulse rate is measured (S1201).

Then, the CPU 105 acquires a plurality of velocity data, calculates the average moving velocity (see FIG. 6D) and stride during the measurement period t, and calculates the average pulse rate Ma (S1202).

Subsequently, the CPU 105 calculates a moving distance using the obtained average moving speed and the elapsed time after starting running, and performs a process of displaying it on the display panel 106 together with the average moving speed (S312), and then stops. When there is no input for instructing to stop the watch (S313), the process of measuring the pulse rate M is performed (S12).
03).

After obtaining the pulse rate M in step S1203, the CPU 105 determines from the obtained pulse rate M in step S1.
The average pulse rate Ma obtained in 202 is subtracted, and it is determined whether or not the absolute value is equal to or larger than a preset set value (allowable value) (S1204). In other words, it is determined whether or not the operating state of the user has changed by determining whether or not the pulse of the user has changed significantly.

Thereafter, if the calculated absolute value is not greater than or equal to the set value (less than or equal to the set value), the process returns to step S312 to calculate the current moving distance, and the average moving speed calculated in step S309 is displayed on the display panel 106. Perform the display process.

On the other hand, if the calculated absolute value is equal to or larger than the set value, it means that the operating state of the user has changed, and therefore the power of the GPS receiver 101 is turned on (S31).
6), the processes of steps S304 to S1204 are performed.

As described above, according to the portable speed / distance meter according to the seventh embodiment, the change in the user's operating state is detected by the change in the user's pulse, and the GPS signal is received when the user's operating state changes. Since the power source of the device 101 is turned on for a certain period of time to calculate the moving speed and the moving speed is used to calculate the moving distance, the GPS receiver 10
It is possible to suppress the power consumption required for the positioning of No. 1 and to effectively use the power and save the power. as a result,
It is possible to obtain a portable speed / distance meter that can be sufficiently mounted on a watch that can only have a small battery built-in.

(Embodiment 8) The portable speed / distance meter according to Embodiment 8 is the same as the portable speed / distance meter described in Embodiment 7, except that the GPS receiver 101 is powered off.
After that, if it is not determined that the operating state (pulse) of the user has changed before the preset time elapses, the power of the GPS receiver 101 is turned on for a predetermined time,
The positioning process and the moving speed calculation process are performed regardless of the change in the operating state (pulse) of the user.

Since the structure of the portable speed / distance meter according to the eighth embodiment is as shown in FIG. 10,
The description of the configuration is omitted here.

Next, the portable speed / speed according to the eighth embodiment
The operation of the rangefinder will be described. FIG. 13 is a flowchart showing an operation procedure of the portable speed / distance meter according to the eighth embodiment. Note that, in FIG. 13, the same steps as the steps of FIGS. 3 and 12 already described are given the same step numbers, and only different steps will be described.

In the portable speed / distance meter according to the eighth embodiment, the processing for acquiring a plurality of speed data is completed,
After powering off the GPS receiver 101 in step S308, a predetermined time is set in a timer (not shown) and the timer is started (S1301).

Then, in step S1204, the average pulse rate Ma obtained in step S1202 and step S1202
When it is determined that the absolute value of the difference in pulse rate M obtained in 1203 is not equal to or greater than the set value, further step S1301.
It is determined whether or not the timer time (constant time) set in step 3 has elapsed (S1302).

If it is determined in step S1302 that the fixed time has not elapsed, the process returns to step S312 and the processes up to step S1204 are executed. On the other hand, when it is determined that the fixed time has elapsed, step S316
Even if it is not determined that the operation state of the user has changed by turning on the power of the GPS receiver 101 by proceeding to step 3, the positioning process and the moving speed calculation process are forcibly executed.

As described above, according to the portable speed / distance meter according to the eighth embodiment, the power source of the GPS receiver 101 is OF
If it is not determined that the operation state of the user has changed before the preset time elapses after F,
By turning on the power of the GPS receiver 101 for a predetermined time, it is possible to cope with a change in the moving speed that does not significantly appear as a change in the operating state of the user. Therefore, the positioning process by the GPS receiver 101 is always performed. Even if it is not possible, it is possible to measure speed and distance with high accuracy.

(Ninth Embodiment) A portable speed / distance meter according to the ninth embodiment is the same as the portable speed / distance meter described in the seventh embodiment, when the walking pitch or running pitch of the user does not change. Input switch 1
When the execution of the calculation of the moving speed is designated through 10, the power of the GPS receiver 101 is turned on to execute the positioning process and the moving speed calculation process.

Since the structure of the portable speed / distance meter according to the ninth embodiment is as shown in FIG. 10,
The description of the configuration is omitted here.

Next, the portable speed / speed according to the ninth embodiment
The operation of the rangefinder will be described. FIG. 14 is a flowchart showing an operation procedure of the portable speed / distance meter according to the ninth embodiment. In addition, in FIG. 9, FIG.
The same steps as those in FIG. 12 are designated by the same step numbers, and only different steps will be described.

In the portable speed / distance meter according to the ninth embodiment, when it is determined in step S1204 that the absolute value of the difference between the average pulse rate Ma and the pulse rate M is not equal to or larger than the set value, the input switch is further added. It is determined whether or not there is an input for instructing the calculation processing of the moving speed via 110 (S1).
401).

If it is determined in step S1401 that there is no input instructing the moving speed calculation process, the process returns to step S312 to execute the processes up to step S1204. On the other hand, if it is determined that there is an input for instructing the calculation processing of the moving speed, step S316
Even if it is not determined that the operation state of the user has changed by turning on the power of the GPS receiver 101 by proceeding to step 3, the positioning process and the moving speed calculation process are forcibly executed.

As described above, according to the portable speed / distance meter according to the ninth embodiment, the execution of the moving speed calculation is designated and the execution of the moving speed calculation is designated. In this case, by turning on the power of the GPS receiver 101 for a predetermined time, as in the case of entering a slope,
Since it is possible to perform the arithmetic processing of the moving speed with good timing when it is known that the moving speed changes, high accuracy is achieved even when the positioning processing by the GPS receiver 101 cannot always be performed. You can measure speed and distance.

Although detailed description is omitted, it is obvious that the portable speed / distance meter according to the ninth embodiment can be applied to the portable speed / distance meter according to the eighth embodiment.

(Embodiment 10) Portable speed of the present invention
When the range finder is composed of a wrist watch and the wrist watch is worn on the wrist, it is conceivable that the value of the speed data greatly varies depending on the user's arm swing state. Therefore, when the portable speed / distance meter of the tenth embodiment determines the average moving speed in step S309 in each of the flowcharts (FIGS. 3 to 5, FIG. 7 to FIG. 9 and FIGS. 12 to 14) already described, The average moving speed does not have an error due to the variation in the value of the speed data, and is applicable to any of the portable speed / distance meters of the first to ninth embodiments.

FIG. 15 is an explanatory diagram for explaining the principle for preventing an error in the average moving speed. Figure 1
As shown in FIG. 5, it is assumed here that 20 pieces of speed data v1 to v20 are acquired within the measurement period. Then, in the tenth embodiment, the average moving speed is calculated by excluding the speed data having the maximum value and the minimum value from the 20 pieces of speed data, thereby preventing the variation in the value of the speed data. By doing so, an error does not occur in the average moving speed.

FIG. 16 is a flow chart showing the processing procedure in the step (S309) of obtaining the average moving speed. The processing in the other steps is as described in the first to ninth embodiments, and therefore the description thereof is omitted here.

First, after performing a process of acquiring a plurality of speed data, speed data having a maximum value and a minimum value is obtained from the plurality of speed data (S1601). In the example shown in FIG. 15, the maximum value is the speed data v10.
The minimum value is the speed data v17.

After that, the speed data total excluding the speed data having the maximum value and the minimum value is calculated, and the calculated total is divided by the data value to calculate the average moving speed (S1602). The average moving speed Vave in the example shown in FIG. 15 is Vave = (Σ (i = 1,20) vi-v10-v1.
7) / 18.

As described above, according to the portable speed / distance meter according to the tenth embodiment, when calculating the average moving speed within a predetermined time, the maximum value and By calculating the average moving speed excluding the minimum value of moving speed data, it is possible to prevent variations in the values of multiple moving speed data that are the standard for obtaining the average moving speed. Measurement can be performed.

(Embodiment 11) The portable speed / distance meter according to the eleventh embodiment uses the processing different from the processing described in the tenth embodiment so that the average movement is caused by the variation in the value of the speed data. This is to prevent an error from occurring in the speed and is applicable to any of the first to ninth embodiments.

FIG. 17 is an explanatory view for explaining the principle for preventing an error in the average moving speed. Figure 1
As shown in Fig. 7, the upper limit value and the lower limit value are set to the value of the speed data here, and the speed data having a value exceeding the upper limit value and the lower limit value are invalid, that is, are not used as the speed data for obtaining the average moving speed. Therefore, it is possible to prevent an error in the average moving speed from occurring due to the variation in the value of the speed data.

FIG. 18 is a flow chart showing the processing procedure in the step (S309) of obtaining the average moving speed. The processing in the other steps is as described in the first to ninth embodiments, and therefore the description thereof is omitted here.

First, after performing a process of acquiring a plurality of velocity data, a process of initializing the value of the velocity data is performed (S
1801). Then, the speed data to be determined is set in order from the first speed data (S1802).

Then, in step S1803, as described with reference to FIG. 17, it is determined whether or not the speed data value exceeds the upper limit value and the lower limit value. Step S18
In 03, when it is determined that the upper limit value and the lower limit value are exceeded, the process returns to step S1802, and the determination process of the next speed data is performed. That is, the speed data having a value exceeding the upper limit value and the lower limit value is not used for obtaining the average moving speed.

On the other hand, if it is determined in step S1803 that the upper limit value and the lower limit value are not exceeded, the flow advances to step S1804 to add to the other speed data values.

Then, it is judged whether or not the processing for obtaining the sum of the values of all the speed data excluding the speed data having a value exceeding the upper limit value and the lower limit value has been completed (S1805), and if not completed, step S1802. Then, the processing is performed for the next speed data, and when the processing is completed, the processing for obtaining the average moving speed is performed (S1806).

As described above, according to the portable speed / distance meter according to the eleventh embodiment, when the average moving speed within a predetermined time is calculated, it is preset from a plurality of acquired moving speed data. By calculating the average moving speed excluding the moving speed data that exceeds the upper and lower limit values, we decided to prevent variations in the values of multiple moving speed data that are the standard for obtaining the average moving speed. It is possible to measure high speed and distance.

(Twelfth Embodiment) The portable speed / distance meter of the twelfth embodiment is the same as the portable speed / distance meter of the first to eleventh embodiments.
In the range finder, when the body movement signal or the pulse signal includes an unsteady signal while the positioning process using the GPS receiver 101 and the moving speed calculation process are performed, the positioning process and the movement are performed. The speed calculation process is stopped, and after a predetermined time has elapsed, the positioning process and the moving speed calculation process are performed again.

FIG. 19 is an explanatory diagram for explaining the non-stationary signal in the body motion signal and also for explaining the timing of stopping and resuming the positioning process and the moving speed calculation process. In the twelfth embodiment, a body movement signal is taken as an example,
Similar processing can be performed on a pulse signal.

As shown in FIG. 19, a normal area including a body movement signal of normal behavior and an abnormal area including a body movement signal when an unsteady behavior is shown are set in advance.
Here, when the body movement signal reaches the abnormal region or when the behavior is unsteady in the normal region, the user performs an action different from the action for walking or running, that is, the unsteady action. The positioning process and the moving speed calculation process are stopped as they are. Then, after the elapse of a certain time, the positioning process and the moving speed calculation process are executed again.

Next, the operation of the portable speed / distance meter according to the twelfth embodiment will be described. FIG. 20 is a flowchart showing the operation procedure of the portable speed / distance meter according to the twelfth embodiment. 20 shows a specific example in which the portable speed / distance meter according to the twelfth embodiment is applied to the portable speed / distance meter of the fourth embodiment, and the same steps as those in FIG. 4 are the same steps. Numbers will be given and only the different steps will be described here. However, the portable speed / distance meter according to the twelfth embodiment is not limited to that of the fourth embodiment, and can be similarly applied to the portable speed / distance meter of other embodiments. Further, in FIG. 20, the step of determining the end of the measurement of the moving speed and the moving distance by the input of the instruction to stop the stopwatch is omitted.

In FIG. 20, after the user starts walking or running in step S303, the CPU 105
Starts a process of monitoring whether the body movement signal input from the body movement detection sensor 102 has an unsteady behavior (S).
2001).

Then, it is determined whether or not an unsteady behavior, that is, an abnormal value, has occurred in the body movement signal (S2002). If it is determined that no abnormal value has occurred, step S
In step 304, the moving speed is measured.

On the other hand, when it is determined that an abnormal value has occurred, the power of the GPS receiver 101 is turned off to stop the positioning processing and the moving speed calculation processing (S2003), and clear the total value of the speed data. Perform processing (S200
4).

Then, the CPU 105 sets a certain time in a timer (not shown) and starts the timer (S20
05), the current moving speed and moving distance are displayed using the average moving speed obtained in the previous positioning processing and moving speed calculation processing (S312).

Then, in step S315, the average pitch Pa obtained in step S310 and step S31 are set.
When it is determined that the absolute value of the difference in pitch P obtained in 4 is not equal to or greater than the set value, it is further determined whether or not the fixed time set in step S2003 has passed (S40).
2).

If it is determined in step S402 that the fixed time has not elapsed, the process returns to step S312 and the processes up to step S315 are executed. On the other hand, when it is determined that the fixed time has elapsed, the process proceeds to step S316, the power of the GPS receiver 101 is turned on, and the positioning process and the moving speed calculation process are executed.

If it is determined in step 315 that the absolute value of the difference between the average pitch Pa obtained in step S310 and the pitch P obtained in step S314 is equal to or greater than the set value, the process proceeds to step S316. The power of the machine 101 is turned on and the positioning process and the moving speed calculation process are executed.

As described above, according to the portable speed / distance meter according to the twelfth embodiment, during the execution of the moving speed arithmetic processing using the GPS receiver 101, the operation signal includes an unsteady signal. If it is determined that the operation signal includes an unsteady signal, the GPS receiver 101 is powered off, and after a preset time elapses, GPS reception is performed. When the process of turning on the power of the machine 101 again is performed and it is determined that the operation signal includes an unsteady signal, the moving speed data acquired by the moving speed calculation process is cleared, and the GPS The power of the receiver 101 is O
In the case of N, by performing the calculation processing of the moving speed and the processing of acquiring the moving speed data again, the positioning processing using the GPS receiver 101 when the user makes an unsteady movement and Since it is possible not to perform the calculation processing of the moving speed, it is possible to measure the speed and distance with high accuracy.

In addition to the case where the unsteady behavior appears in the body movement signal, when the number of GPS satellites that can be received by the GPS receiver 101 is less than a predetermined number, positioning processing and movement are performed. The speed calculation process may be stopped.

[0148]

As described above, according to the portable speed / distance meter (Claim 1) of the present invention, it is determined whether or not the operating state of the user has changed, and the operating state of the user has changed. In this case, the GPS receiver is turned on, and after a predetermined time has passed, the GPS receiver is turned off,
When the power of the GPS receiver is turned on, the positioning result of the GPS receiver is used to perform a plurality of moving speed calculation processes to acquire a plurality of moving speed data, and a plurality of acquired moving speeds are acquired. By calculating the average moving speed within a predetermined time from the data and using the latest average moving speed as the current moving speed to calculate the moving distance, G
The power supply to the PS receiver can be performed intermittently, the positioning process is performed by the GPS receiver at the timing when the moving speed of the user is expected to change, and the moving speed is calculated. Since the travel distance is determined by using, the power can be effectively used and the power can be saved, and even if the positioning process by the GPS receiver cannot always be performed, the speed and the distance can be accurately measured. Can be measured. Therefore, a speed / distance meter using a small GPS receiver such as a wristwatch can be easily configured.

According to the portable speed / distance meter of the present invention (claim 2), the movement of the user is detected, the walking pitch or the running pitch is obtained from the detected movement of the user, and the pitch signal is generated. , When the pitch signal changes by a preset allowable value or more, it is determined that the user's operation state has changed, and the GPS is predicted to change at the time when the user's walking or running speed is changed.
Since positioning processing is performed by the receiver to determine the moving speed and then the moving distance is determined using the calculated moving speed, effective use of power and power saving can be achieved, and the GPS receiver is always used. Even if the positioning process cannot be performed, the speed and distance can be measured with high accuracy.

Further, according to the portable speed / distance meter (Claim 3) of the present invention, the movement of the user is detected, the arm swing strength is obtained from the detected user motion, and the arm swing signal is generated. , Positioning by the GPS receiver at a timing when it is expected that the walking or running speed of the user has changed by determining that the user's operating state has changed when the arm swing signal has changed by a preset allowable value or more. Since processing is performed to obtain the moving speed and then the moving distance is obtained using the obtained moving speed, effective use of power and power saving can be achieved, and positioning processing is always performed by the GPS receiver. Even if it is not possible, it is possible to measure speed and distance with high accuracy.

Further, according to the portable speed / distance meter (Claim 4) of the present invention, the pulse of the user is detected, a pulse signal is generated based on the detected pulse, and the pulse signal is set to a preset tolerance. When it changes more than the value, it is determined that the operation state of the user has changed, and the G
Since the positioning process is performed by the PS receiver to determine the moving speed and then the moving distance is determined using the calculated moving speed, effective use of power and power saving can be achieved, and the GPS receiver is always available. Even if the positioning process by can not be performed, it is possible to measure the speed and distance with high accuracy.

Further, according to the portable speed / distance meter (Claim 5) of the present invention, the operation state of the user is set after the power of the GPS receiver is turned off and before a preset time elapses. Is not determined to have changed, GP
By turning on the power of the S receiver for a predetermined time, it is possible to cope with a change in the moving speed that does not significantly appear as a change in the operating state of the user. Therefore, the positioning process by the GPS receiver cannot always be performed. Even in this case, it is possible to measure the speed and distance with high accuracy.

Further, according to the portable speed / distance meter according to the present invention (claim 6), the execution of the calculation of the moving speed can be designated, and the execution of the calculation of the moving speed is designated. In such a case, by turning on the power of the GPS receiver for a predetermined time, when it is known that the moving speed changes, such as when entering a slope, it is possible to perform the moving speed calculation processing in good timing. So I always GP
Even if the positioning process by the S receiver cannot be performed, the speed and distance can be measured with high accuracy.

Further, according to the portable speed / distance meter (Claim 7) of the present invention, when calculating the average moving speed within a predetermined time, the maximum value is obtained from the plurality of moving speed data acquired. By calculating the average moving speed excluding the minimum moving speed data and the minimum moving speed data, it is possible to prevent variations in the values of the multiple moving speed data that are the standard for obtaining the average moving speed. Can be measured.

According to the portable speed / distance meter of the present invention (claim 8), when calculating the average moving speed within a predetermined time, it is preset from a plurality of acquired moving speed data. By calculating the average moving speed excluding the moving speed data that exceeds the upper limit value and the lower limit value, it was decided to prevent the variation in the values of the plurality of moving speed data used as the reference for obtaining the average moving speed. It is possible to measure speed and distance with high accuracy.

Furthermore, according to the portable speed / distance meter (Claim 9) of the present invention, an unsteady signal is included in the operation signal during execution of the moving speed arithmetic processing using the GPS receiver. If it is determined that the operation signal includes a non-stationary signal, the GPS receiver is powered off, and after a preset time elapses, the GPS receiver is When the process of turning on the power of is turned on again and it is determined that the operation signal includes an unsteady signal,
By clearing the moving speed data acquired in the moving speed calculation process, and when the power of the GPS receiver is turned on, the moving speed calculation process is executed to obtain the moving speed data again. Since it is possible to prevent the positioning process and the moving speed calculation process using the GPS receiver from being performed when the user makes an unsteady movement, it is possible to measure the speed and distance with high accuracy.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a portable speed / distance meter according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an outline of processing for measuring speed / distance in the portable speed / distance meter according to the first embodiment of the present invention.

FIG. 3 is a flowchart showing an operation procedure of the portable speed / distance meter according to the first embodiment of the present invention.

FIG. 4 is a flowchart showing an operation procedure of the portable speed / distance meter according to the second embodiment of the present invention.

FIG. 5 is a flowchart showing an operation procedure of the portable speed / distance meter according to the third embodiment of the present invention.

FIG. 6 is an explanatory diagram showing an outline of a process of measuring speed / distance in a portable speed / distance meter according to Embodiment 4 of the present invention.

FIG. 7 is a flowchart showing an operation procedure of the portable speed / distance meter according to the fourth embodiment of the present invention.

FIG. 8 is a flowchart showing an operation procedure of the portable speed / distance meter according to the fifth embodiment of the present invention.

FIG. 9 is a flowchart showing an operation procedure of the portable speed / distance meter according to the sixth embodiment of the present invention.

FIG. 10 is a block diagram showing a configuration of a portable speed / distance meter according to a seventh embodiment of the present invention.

FIG. 11 is an explanatory diagram showing an outline of processing for measuring speed / distance in a portable speed / distance meter according to a seventh embodiment of the present invention.

FIG. 12 is a flowchart showing an operation procedure of the portable speed / distance meter according to the seventh embodiment of the present invention.

FIG. 13 is a flowchart showing an operation procedure of the portable speed / distance meter according to the eighth embodiment of the present invention.

FIG. 14 is a flowchart showing an operation procedure of the portable speed / distance meter according to the ninth embodiment of the present invention.

FIG. 15 is a portable speed / chart according to Embodiment 10 of the present invention.
It is an explanatory view explaining the principle for preventing an error from occurring in the average moving speed in the distance meter.

FIG. 16 is a portable speed according to Embodiment 10 of the present invention.
It is a flowchart which shows the processing procedure in the step which calculates | requires an average moving speed in a range finder.

FIG. 17 is a portable speed according to Embodiment 11 of the present invention.
It is an explanatory view explaining the principle for preventing an error from occurring in the average moving speed in the distance meter.

FIG. 18 is a portable speed according to Embodiment 11 of the present invention.
It is a flowchart which shows the processing procedure in the step which calculates | requires an average moving speed in a range finder.

FIG. 19 is a portable speed according to the twelfth embodiment of the present invention.
It is an explanatory view explaining the non-stationary signal in a body motion signal in a range finder, and explaining the timing of stop and resumption of positioning processing and moving speed calculation processing.

FIG. 20 is a portable speed according to Embodiment 12 of the present invention.
It is a flowchart which shows the operation procedure of a range finder.

FIG. 21 is a block diagram showing a configuration of a GPS receiver.

[Explanation of symbols]

100 GPS satellites 101 GPS receiver 102 Body motion sensor 105 CPU 108 ROM 110 input switch 1001 pulse detector

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazumi Sakumoto 1-8 Nakase 1-8 Nakase, Mihama-ku, Chiba City, Chiba Prefecture (56) Reference JP-A-7-289540 (JP, A) JP-A 9-89584 (JP, A) Utility model registration 3025213 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) G01C 21/16 G01C 22/00 G01S 5/14 H02J 1/00 307

Claims (9)

(57) [Claims] 1. A moving speed calculating means for calculating a moving speed of a user while walking or running using a positioning result of a GPS receiver, and a moving speed calculated by the moving speed calculating means for a user. In a portable speed / distance meter having a moving distance calculating means for calculating a moving distance , a longitude and latitude are measured by receiving from a GPS satellite.
And a power supply for the GPS receiver that supplies power to the GPS receiver
And an operation signal generating means for generating an operation signal representing the operation of the user, and an operation signal generated by the operation signal generating means, and whether or not the operation state of the user has changed based on the input operation signal. If the state change determination means determines whether the operation state of the user has changed, the GPS receiver is turned on, and after the elapse of a predetermined time, the GPS reception is performed. Power supply control means for turning off the power supply to the GPS receiver, wherein the moving speed calculation means is configured to control the G speed when the power supply to the GPS receiver is turned on by the power supply control means.
Using the positioning result of the PS receiver, a plurality of moving speed calculation processes are executed to acquire a plurality of moving speed data, and the average moving speed within the predetermined time is calculated from the acquired moving speed data. A portable speed / distance meter, characterized in that the moving distance calculating means calculates the moving distance by using the latest average moving speed calculated by the moving speed calculating means as the current moving speed. . 2. The motion signal generating means detects a user's motion as the motion signal, obtains a walking pitch or a running pitch from the detected motion of the user, and generates a pitch signal. The input of the pitch signal generated by the operation signal generation means, and it is determined that the operation state of the user has changed when the input pitch signal changes by a preset allowable value or more. The portable speed / distance meter described in 1. 3. The motion signal generating means detects a motion of the user as the motion signal, obtains arm swing strength from the detected motion of the user to generate a arm swing signal, and the state change determining means comprises: It is characterized in that the arm swing signal generated by the motion signal generating means is input, and it is determined that the motion state of the user has changed when the input arm swing signal changes by a preset allowable value or more. The portable speed / distance meter according to claim 1. 4. The operation signal generation means detects a pulse of a user as the operation signal, and generates a pulse signal based on the detected pulse, and the state change determination means is generated by the operation signal generation means. The portable speed according to claim 1, wherein when the input pulse signal changes and the input pulse signal changes more than a preset allowable value, it is determined that the operating state of the user has changed. Rangefinder. 5. The power supply control means determines that the operation state of the user has changed by the state change determination means until a preset time elapses after the power of the GPS receiver is turned off. The portable speed / distance meter according to any one of claims 1 to 4, characterized in that, when not performed, the GPS receiver is turned on for a predetermined time. 6. The apparatus further comprises calculation execution designating means for designating execution of the calculation of the moving speed by the moving speed computing means, wherein the power supply control means is designated to execute the calculation of the moving speed by the calculation execution designating means. The portable speed / distance meter according to any one of claims 1 to 5, wherein the GPS receiver is turned on for a predetermined period of time. 7. The moving speed calculation means, when calculating an average moving speed within the predetermined time, excludes maximum and minimum moving speed data from the acquired plurality of moving speed data. The portable speed / distance meter according to any one of claims 1 to 6, wherein the average moving speed is calculated. 8. The moving speed calculation means, when calculating an average moving speed within the predetermined time, is a value exceeding an upper limit value and a lower limit value set in advance from the plurality of acquired moving speed data. The portable speed / distance meter according to any one of claims 1 to 6, wherein the average moving speed is calculated excluding the moving speed data. 9. The operation signal generated by the operation signal generation means includes an unsteady signal during execution of the positioning processing by the GPS receiver and the movement speed calculation processing by the movement speed calculation means. An operation signal determining means for determining whether or not the GPS signal is received when the operation signal determining means determines that the operation signal includes an unsteady signal. The power of the GPS receiver is turned off, and after the preset time elapses, the power of the GPS receiver is turned on again.
If the operation signal determination unit determines that the operation signal includes an unsteady signal, the movement speed calculation unit obtains the movement obtained by the movement speed calculation process. The speed data is cleared, and when the power of the GPS receiver is turned on, the processing for calculating the moving speed is executed and the processing for acquiring the moving speed data is executed again. 8. A portable speed / distance meter according to any one of 8.