JPS6250789A - Distance display unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a distance display device that measures and displays the length of a curve on a map.

[Conventional technology]

Conventionally, a Kilby meter is well known as a distance display device as described above. When you follow a desired route on the map while rolling the small ring at the tip, the needle on the dial will indicate the length of the route.

[Problems with conventional technology]

Although the Kilby meter described above can easily measure curved distances on flat ground9, for example, it cannot accurately measure curved distances on terrain with large altitude changes such as mountain roads.1. Furthermore, it was impossible to display the state of altitude change, that is, the angle of inclination.

For example, when climbing a mountain, etc., you walk on a mountain path with many slopes.
It is not possible to always walk at a constant speed like on flat land, and the walking speed depends on the degree of slope. Therefore, when making a time schedule for mountain climbing etc., it is necessary to keep track of the change in altitude. However, the above-mentioned Kilby meter could not meet this need at all.

[Purpose of the invention]

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, it is an object of the present invention to provide a distance display device that can display the state of change in altitude on a map and also display the current position at the same time.

[Key points of the invention]

In order to achieve the above object, the present invention makes it possible to display a cross-section of a route by combining data regarding changes in altitude obtained from, for example, equal straight lines, and distance data, and to display the current position relative to the cross-section. can also be displayed.

[Embodiments of the invention]

Two embodiments of the present invention will be described below with reference to one drawing.

FIG. 2 is an external view showing a digital electronic timepiece to which an embodiment of the present invention is applied. In the figure, a display section 2 consisting of a liquid crystal display device is provided on the top surface of a watch case 1 of an electronic timepiece, and as described in detail later, in addition to the time, distance, scale, cross-sectional shape, etc. can be displayed in a switchable manner. It becomes. On the left side of the watch case 1, an altitude lowering switch S+, a scale selection switch S4, and an altitude increasing switch S2 are provided from above, while on the cloth side, a crown 3, an initial altitude setting switch S5, and a mode selection switch S6 are provided. It is being

3 and 4 show the structure of the crown 3 and its vicinity. A waterproof gasket 5 is interposed between the shaft 4 of the dragon M3 and the watch case 1, and a gear 6 is fitted inside the watch case 1 of the shaft 4.

Eight protrusions 7 are provided on the circumferential surface of the gear 6 at equal intervals.

On the other hand, inside the watch case 1, there is built-in a circuit board 8 on which the display section 2 and the like described above are attached. A notch 9 is formed at the end of the circuit board 8 facing the crown 3, and the gear 6 is movable within this notch 9 as the crown 3 is pulled out.

Addition electrodes 10 and subtraction electrodes 11 are formed on the upper surfaces of both corners of the entrance of the notch 9 . Also.

On these addition electrodes 10 and subtraction electrodes 11.

Switch plates 12゜13 each having L-shaped elasticity
are provided so that they can be moved into and out of contact with each other. This switch board 12.1
3, one end of the L-shape is fixed onto the circuit board 8, and the other end extends toward the circumferential surface of the gear 6. When the gear 6 rotates and the protrusion 7 pushes down the tips of the switch plates 12 and 13, the L-shaped bent portions move the adding electrodes 10 and 10, respectively. Subtraction electrode 11
It is designed to conduct through contact. Both electrodes 10.
11 and switches ff112.13 constitute a distance measuring switch S3.

Next, the circuit configuration of this embodiment will be explained with reference to FIG.

In the figure, a clock pulse of a reference frequency is output from the 1 oscillation circuit 21. This clock pulse is exchanged by the frequency dividing circuit 22 into a 1112 signal of 1 pulse per second, and this 111z signal is further counted by the time counter 23 to give 3 hours, 9 minutes, 1 second, January 1, 9 years.

Time data such as the day of the week is output.

The six switches 81 to S6 are the same as those shown in FIGS. 2 and 4, namely, S+ is the altitude drop switch, S2 is the altitude increase switch, S3 is the distance measurement switch,
S4 is a scale selection switch.

S5 is an initial altitude setting switch + Sa is a mode changeover switch. Altitude drop switch S1 is AND circuit 24.2
The altitude increase switch S2 is connected to the input terminal of the AND circuit 25.27. Summing electrode 10 of distance measurement switch S3. The subtraction electrodes 11 are respectively connected to input terminals of AND circuits 28 and 29, and the scale changeover switch S4 is connected to an input terminal of an AND circuit 30. Initial altitude setting switch S5 is AND circuit 31
The mode changeover switch S6 is input to the display mode changeover section 32.

The display mode switching section 32 is for switching the display mode of the display section 2, and each terminal "O" is switched on each time the mode switching switch S6 is turned on.

Signals are output in order from “1” and “2”.The output signals from these terminals “0”, “1”, and “2” are sent to gate circuits 33, 34, 35, 36° 37, respectively. , is applied as a gate signal to open these.Furthermore, the output signal from the terminal "1" is applied to the AND circuit 26.
Guided to each input terminal of 27.28, 29°30.31,
The output signal from terminal "2" is led to each input terminal of AND circuits 24 and 25 and to the rising edge detection circuit 38.

The output signal of the AND circuit 30 is input to a scale counter 39. This scale counter 39 is an n-ary ring type counter, and each time the output signal of the AND circuit 30 is inputted, the scale counter 39 is converted to Each scale data such as 1, . . . is output.

The output signals of the AND circuits 28 and 29 are input to a child terminal and one terminal of the arithmetic circuit 40, respectively.

This arithmetic circuit 40 receives a signal from the AND circuits 28 and 29 to a child terminal or one terminal.

A data value proportional to the scale data output by the scale counter 39 is added to or subtracted from the distance data in the distance register 41, and the resulting data is also written in the distance register 41.

The output signals of the AND circuits 26 and 27 are sent to the RAM control unit 43 via the OR circuit 42.This RAM control unit 43 receives the RA
The distance data in the distance register 41 is sequentially written into each memory of the M44. At this time, a flag 1'' is set as altitude data for the distance data written in the RAM 44 when the signal is output from the AND circuit 27, and θ'' is set for other cases.

The rising edge detection circuit 38 connects the 1 display mode switching section 32 to the terminal "
2", this rising edge is detected and the detection signal is sent to the RAM control section 43. When the RAM control section 43 receives this detection signal, it outputs all data in the RAM 44, that is, to each memory. Written distance data and corresponding altitude data (flag 1”, “0”)
”) is also sent to the RAM control unit 43. Output signals from the AND circuits 24 and 25 are also sent to the RAM control unit 43.

The RAM control unit 40 reads out partial data in the RAM 44 in the order in which they were written every time a signal is sent from the AND circuit 25, and reads out the partial data in the RAM 44 every time a signal is sent from the AND circuit 24. The data are read out in the reverse order in which they were written and output to the pattern creation section 45.

On the other hand, the output signal of the AND circuit 31 is guided to an initial altitude setting circuit 46. In the initial altitude setting circuit 46, an initial altitude is set based on the output signal of the AND circuit 31 by operating the initial altitude setting switch s5, and is output as initial altitude data. This initial altitude data is sent to the pattern creation section 45 via the gate circuit 37. Further, an altitude sensor 47 consisting of a barometric pressure needle or the like detects the altitude of the current position, and this detection signal is sent to the altitude measurement circuit 4.
8 and output as current position altitude data. This current position altitude data is also sent to the pattern creation section 45 via the gate circuit 34.

The pattern creation unit 45 is based on the distance data and altitude data read out from the RAM 44.

Inclination data, that is, cross-sectional data is created, and further based on the initial altitude data sent from the initial altitude setting circuit 46 and the current position altitude data sent from the altitude measurement circuit 48,
Incorporate data to display the current position in the above cross-sectional data.

The time data output by the time counting section 23, the cross-sectional data created by the pattern creation section 45, and the distance register 4
1. Scale counter 39. Distance data output by the initial altitude setting circuit 46.

Scale data and initial altitude data are displayed in one display mode switching section 32.
are selectively sent to the decoder/driver 49 via gate circuits 33, 35, and 36, respectively, based on gate signals from each terminal. This decoder driver 49 is
Each of the above data is decoded and displayed on 1 display section 2 such as time, cross section, etc.
Display distance, scale, initial altitude, etc. numerically.

Next, the operation and operation of the above-mentioned construction force hammer of this embodiment will be described.

Assume that a gate signal is now being output from the terminal "0" of the 1 display mode switching section 32. Then, the time data from the 1-time counter 23 passes through the gate circuit 33, and the date and time are displayed on the 1-display section 2 as shown in FIG. 5+8).

To perform distance measurement on a map or the like from this state, first turn on the mode changeover switch S6, and then output a signal from the terminal "1" of the display mode changeover section 32. Then, the distance data from the distance register 41, the scale data from the scale counter 39, and the initial altitude data from the initial altitude setting circuit 46 pass through the gate circuit 36, and are displayed on the 1 display section 2.

As shown in FIG. 5(b), the scale, initial altitude, and measured distance are displayed. However, before the distance measurement is made, this distance is zero.

Therefore, while looking at the display section 2, the scale changeover switch S4 is turned on a predetermined number of times to set the scale data on the scale counter 39 to the same value as the scale of the map to be measured. Furthermore, by operating the initial altitude setting switch S5, the initial altitude of the route to be measured is set in the initial altitude setting circuit 46.

Next, as shown in Fig. 3, pull out the crown 3 as far as it will go and press the crown 3 against a map 1, for example, as shown in Fig. 6. Transfers will be made in the positive (+) direction shown in . Then, the gear 6 also rotates together with the crown 3, and the protrusion 7 of the gear 6 rotates.
presses down the switch plate 12, and each time the switch plate 12
contacts the summing electrode 10. That is, in FIG.

The distance measuring switch S3 is turned on to the + side by the number of times of contact, and the on signal is sent to the ten terminal of the arithmetic circuit 40 via the AND circuit 28.

Then, in the arithmetic circuit 40, a value 9 proportional to the scale data from the scale counter 39 is added to the distance data from the distance register 41 (initially O), for example, if it is 1/25,000, it is set to 1,50,000. If it is 1, add the value of 2, and if it is 1/100,000, add the value of 4.

This total is rewritten into the distance register 41. From then on.

Each time an on signal is input to the + terminal, the distance register 41
The contents of are rewritten to the added value. At this time, the increasing distance data in the distance register 41 is transmitted to the gate circuit 3.
6, decoded by a decoder/driver 49, and sequentially displayed on the 3 display sections 2. In this way, when the end point of route A in FIG. 6 is reached, the displayed distance at that time becomes the distance of route A.

In addition, if you make a mistake in the measurement route, move the crown 3 to the second
All you have to do is move back in the minus (-) direction shown in the figure or Figure 3, and then go back the same route you came. Then, the gear 6 rotates in the opposite direction together with the crown 3, and the switch plate 13 is pushed down and comes into contact with the subtraction electrode 11. That is, the distance measuring switch S3 in FIG. 1 is turned on, for example.

The ON signal is sent to one terminal of the arithmetic circuit 40 via the AND circuit 29. Therefore, in the arithmetic circuit 4°, the amount of backward travel is subtracted from the distance data in the distance register 41, that is, the amount of incorrect travel is subtracted.

Next, an operation for displaying a cross section of a route will be described.

As shown in FIG. 6, if contour lines are marked on the map, how many times will the crown 3 cross these contour lines in the process of transferring the crown 3 along the route A as described above. Therefore, every time you cross the first contour line IJX, if the contour line indicates a higher altitude than the contour line you crossed earlier, turn on the altitude increase switch S2, and conversely, if the contour line indicates a lower altitude, turn on the altitude decrease switch. Turn on S1. Then, the ON signals of the altitude increase switch s2 and the altitude decrease switch S+ are sent to the AND circuit 26.
．． 27 and the OR circuit 42 to the RAM control section 43. The RAM control unit 43 is.

As described above, each time these ON signals are received, the distance data in the distance register 41 is written into each memory of the RAM 44, and at the same time, the distance data written by the ON signal of the altitude climb switch 7-chi S2 is written. Therefore, the RAM 44 stores distance data for each contour line and altitude data (flag 1") indicating changes in altitude.
, "0") will be written.

When displaying the cross-sectional shape of the route based on these altitude data and distance data, another part of the mode changeover switch S5 is turned on to output a signal from the terminal "2" of the two-display mode changeover section 32. Then.

The rising edge of this signal is detected by the rising edge detection circuit 38, and
The detection signal is sent to the RAM control section 43.

All data in the RAM 44 is read out to the pattern creation section 45. In the pattern creation section 45, by obtaining the altitude data and distance data from the RAM 44, it is possible to know how much the altitude increases or decreases over what distance, so the slope state between each contour line is patterned. Output as cross-sectional data. In addition, the pattern creation section 45
Well then.

Initial altitude setting circuit 46. Based on the initial altitude data and current position altitude data sent from the altitude measuring circuit 48, the current position is marked on the patterned cross section. The cross-sectional data including the current position is decoded by the decoder/driver 49 via the gate circuit 35, and is displayed in its entirety on the display section 2 as shown in FIG. 5(C). In the figure, the dotted area is the current position.

Next, when it is desired to display the above-mentioned cross-sectional data partially sequentially, by turning on the altitude increase switch S2 while leaving the 2-display mode switching section 32 as it is, the on signal is sent to the RAM control section via the AND circuit 25. Sent to 43. Then, the first partial data is sent from the RAM 44, and similarly outputted as cross-sectional data by the pattern creation section 45, and a partial cross-sectional display as shown in FIG. 5Fdl is performed.

If you want to see the next cross section, press the altitude increase switch S.
By turning on 2, Figure 5 fed, (f).

Cross-sectional display can be performed in the order shown in (ff). In addition.

If you want to go back and look at this kind of cross-section display.

By sequentially turning on the altitude descent switch S1.

Figure 5 (g), (f), [e), ! d) can be displayed in this order.

In the above embodiment, the crown 3 is used as a rolling element.

The distance was measured by pulling out the crown 3, but it is also possible to make the crown 3 disk-shaped and partially expose it to the side from the watch case l. Anything that can be converted into data is fine.

Further, in the above embodiment, a flag 1" or " is used to indicate an uphill or downhill slope every nine contour lines as altitude data.
Although "O" was used, it does not necessarily have to be a contour line as long as it shows a change in altitude.

Furthermore, in order to display the current position, for example, an arrow or the like may be used instead of the door.

〔Effect of the invention〕

As explained above, according to the present invention, the inclination state of a desired route on a map can be displayed in a cross section, and the current position can also be displayed with respect to the cross section. Therefore, when climbing, etc., which particularly requires information regarding altitude changes, this information can be seen at a glance, making it easier to plan your time, and also allowing you to accurately grasp your location even while actually climbing. This makes it very convenient and useful.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing an embodiment of the present invention. FIG. 2 is an external view of the same embodiment. FIG. 3 is a mechanical configuration diagram showing the crown and its vicinity according to the same embodiment. FIG. 4 is a configuration diagram of a distance measuring switch according to the same embodiment. FIG. 5 is a diagram showing a display example of the display unit according to the same embodiment. FIG. 6 is a diagram showing an example of a map to be measured. 2...Display section. 3... Crown. 39...Scale counter. 40...Arithmetic circuit. 41...Distance register. 43...RAM control unit. 44...RAM. 45...Pattern creation section. 46...Initial altitude setting circuit. 47... Altitude sensor. 48... Altitude measurement circuit. SL...Altitude descent switch. S2...Altitude increase switch. S3... Distance measurement switch. Patent Applicant Casio Computer Co., Ltd. Figure 4 (a) (b) (C) (d
) (e) (f) (9
)Figure 5Figure 6

Claims (1)

[Scope of Claims] Distance measuring means for moving along an arbitrary route on a map and measuring the distance traveled on the map and storing the distance as distance data; altitude measuring means for storing as data; altitude display control means for displaying the altitude of the route based on the distance data and the altitude data; and displaying the current position with respect to the altitude displayed by the altitude display control means. 1. A distance display device comprising: current position display control means.