JPS6250788A - 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 above-mentioned Kilby meter can easily measure curved distances on flat land,9 it cannot accurately measure curved distances on topography with large altitude changes, such as mountain passes, and it is even more difficult to measure the state of the altitude change, that is, the inclination angle. It was impossible to display such things.

For example, in mountain climbing, etc. (because you walk on a mountain path with many IQ slopes, you cannot always walk at a constant speed like on flat land,
The walking speed is greatly influenced by the degree of incline. Therefore, in mountain climbing, etc., information regarding the status of altitude changes is particularly required when making a time schedule. However, in the Killby meter mentioned above, this necessity is completely eliminated (
I couldn't meet it.

[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 also display changes in altitude on a map.

[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.

[Embodiments of the invention]

Hereinafter, two embodiments of the present invention will be described with reference to the five drawings.

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 unit 2 consisting of a liquid crystal display device is provided on the top surface of a watch case 1 of an electronic watch, and as described in detail later, it is possible to switch between displaying 2 times, distance, scale, cross-sectional shape, etc. It becomes. On the left side of the hour hand 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 and a mode selection switch s! l is provided.

3 and 4 show the structure of the crown 3 and its vicinity. The shaft 4 of the crown 3 and the watch case, this gear 6
Eight protrusions 7 are protruded at equal intervals on the circumferential surface.

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 . I did.

On these addition electrodes 10 and subtraction electrodes 11.

L-shaped elastic switch plates 12 and 13, respectively.
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+L-shaped bent portions are connected to the addition electrodes 10 and 10, respectively. It is designed to contact and conduct with the subtraction electrode 11. Both electrodes 1
0.11 and the switch plate 12.13 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 converted into a 1112 signal of 1 pulse per second by the frequency dividing circuit 22, and this 1 tlz signal is further counted by the time counter 23, and the time is 1 hour, 9 minutes, 1 second January 1st.

Time data such as year and day of the week are output.

The five switches 5l-55 are the same as those shown in FIGS. 2 and 4, namely sl is the altitude lowering switch, s2 is the altitude increasing switch 133 is the distance measuring switch,
Sa is the scale selection switch.

S5 is a mode changeover switch. Altitude descent switch S
+ is connected to the input terminal of the AND circuit 24C26, and the altitude increase switch s2 is connected to the input terminal of the AND circuit 25°27. Addition electrode 10 of distance measurement switch S3
．． The subtraction electrodes 11 are connected to input terminals of AND circuits 28 and 29, respectively.

The scale changeover switch S4 is connected to the input terminal of the AND circuit 3o. The mode changeover switch s5 is input to the display mode changeover section 31.

The display mode switching section 31 is for switching the display mode of the display section 2, and each terminal is set to "0" each time the mode selection switch S5 is turned on.

Signals are output in order from "1" and "2". The output signals from these terminals "0", "1", and "2" are applied to the gate circuits 32, 34, and 33, respectively, as gate signals for opening these. The output signal from “l” is an AND circuit 26.27.28
, 29 and 30, and the output signal from terminal "2" is sent to each input terminal of AND circuits 24 and 25 and the rising edge detection circuit 35.

The output signal of the AND circuit 30 is input to a scale counter 36. This scale counter 36 is an n-ary ring counter, and each time the output signal of the AND circuit 30 is inputted, the scale counter 36 receives a value of 9, for example, 1/10,000, 1/25,000, 1/50,000, or 1/100,000. 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 37, respectively.

This arithmetic circuit 37 operates every time a signal is applied to a child terminal or one terminal from the AND circuits 28 and 29.

A data value proportional to the scale data output by the scale counter 36 is added to or subtracted from the distance data in the distance register 38, and the resulting data is also written in the distance register 38.

The output signals of the AND circuits 26 and 27 are sent to the RAM control section 40 via an OR circuit 39.

This RAM control unit 40 stores the distance register 38 in each memory of the RAM 41 every time a signal is sent from the OR circuit 39.
The distance data within is written sequentially.

At this time, when the signal is output from the AND circuit 27, R
A flag "1" is set for the distance data written in AM41 as altitude data, and "O" is set for other cases.

The rising edge detection circuit 35 connects the 9 display mode switching section 31 to the terminal "
2'', this rising edge is detected and the detection signal is sent to the RAM control unit 40.RAM control unit 4
Upon receiving this detection signal, 0 reads all the data in the RAM 41, that is, the distance data written in each memory and the corresponding altitude data (flag 1'', "0").
) is read. Further, output signals from the AND circuits 24 and 25 are also sent to the RAM control section 40.

A signal from the AND circuit 25 is also sent to the RAM control section 40 . The RAM control unit 40 reads partial data in the RAM 41 in the order in which they were written each time a signal is sent from the AND circuit 25, and reads the partial data in the RAM 41 in the order in which they were written. Reads data in the reverse order in which it was written.

The pattern creation section 42 uses the distance data and altitude data read out from the RAM 41.

Create slope data, that is, cross-sectional data.

The time data outputted by the time counting section 23, the cross-sectional data created by the pattern creation section 42, the distance data outputted from the distance register 38, and the scale data outputted from the scale counter 36 are transferred to each of the three display mode switching sections 31. Based on the gate signals from the terminals, gate circuits 32 and 3 respectively
3.34 to the decoder driver 43.

This decoder/driver 43 decodes each of the above decoders and displays the time, cross section, and distance on the display section 2.

Or display the scale numerically.

Next, the operation and operation of this embodiment having the above configuration will be described.

It is now assumed that a gate signal is being output from the terminal "0" of the 9 display mode switching unit 31. Then, the time data from the 1-time counter 23 passes through the gate circuit 32, so that the date and time are displayed on the 1-display section 2 as shown in FIG. 5(a).

To perform distance measurement on a map or the like from this state, first turn on the mode changeover switch S5, and then output a signal from the terminal "1" of the display mode changeover section 31. Then, the distance data from the distance register 38 and the scale data from the scale counter 36 pass through the gate circuit 34, resulting in 1
On the display section 2.

The measured distance and scale are displayed as shown in FIG. 5(b). However, before the distance measurement is performed, this distance is zero. So, while looking at this display section 2,
The scale data of the scale counter 36.

The scale selection switch S4 is turned on a predetermined number of times to set the scale to the same value as the scale of the map to be measured.

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 9, for example, as shown in Fig. 6, and follow the route you want to measure as shown in Fig. 2 or 4. Then, the gear 6 rotates together with the crown 3, and the protrusion 7 of the gear 6 pushes down the switch Fi 12, and each time the switch plate 12 comes into contact with the addition electrode 10. That is, In FIG. 1, 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 child terminal of the arithmetic circuit 37 via the AND circuit 28.

Then, in the arithmetic circuit 37, a value 1 proportional to the scale data from the scale counter 36 is added to the distance data from the distance register 38 (initially O), for example, if it is 1/25,000, it is 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 sum is written back into the distance register 38. From then on.

Each time an on signal is input to the + terminal, the distance register 38
The contents of are rewritten to the added value. At this time, the increasing distance data in the distance register 38 is transmitted to the gate circuit 3.
The signals are decoded by a decoder/driver 43 via a decoder/driver 43 and sequentially displayed on a display section 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 in one direction as shown in the figure or Figure 3, and then go back the route you came from.

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, in FIG. 1, the distance measuring switch S3 is turned on to one side, and the on signal is sent to one terminal of the arithmetic circuit 28 via the AND circuit 29. Therefore, in the arithmetic circuit 37, the amount of the backward movement is subtracted from the distance data in the distance register 38, that is, the amount of the incorrect distance 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 drawn on the map, these contour lines will be crossed several times in the process of transferring the crown 3 along route A as described above. Therefore, every time you cross 9 contour lines, if the contour line indicates a higher altitude than the contour line you crossed earlier, turn on the altitude increase switch S2. Turn on switch SI. Then, the ON signals of the altitude increase switch S2 and the altitude decrease switch S1 are as follows.

RA via AND circuits 26 and 27 and OR circuit 39
It is sent to the M control section 40. As described above, the RAM control unit 40 registers the distance register 3 every time it receives these ON signals.
At the same time, a flag 1'' is set for the distance data written by the ON signal of the altitude increase switch S2.

The RAM 41 contains 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 S is turned on to output a signal from the terminal "2" of the 2-display mode changeover section 31. Then.

The rising edge of this signal is detected by the rising edge detection circuit 35, and
The detection signal is sent to the RAM control section 40.

All data in the RAM 41 is read out to the pattern creation section 42. In the pattern creation section 42, by obtaining the altitude data and distance data from the RAM 41, it is possible to know how much the altitude increases or decreases for how much distance, so the slope state between each contour line is patterned. ,
Output as cross-sectional data. This cross-sectional data is decoded by the decoder/driver 43 via the gate circuit 33, and is displayed in its entirety on the display section 2 as shown in FIG. 5(C).

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 31 as it is, the on signal is sent to the RAM control section via the AND circuit 25. Sent to 40. Then, the first partial data is sent from the RAM 41, and similarly outputted as cross-sectional data by the pattern creation section 42, and a partial cross-sectional display as shown in FIG. 5(d) is performed.

, if you want to see the next cross section, turn on the altitude increase switch S2 to view the views shown in Figures 5(e) and (f).
.

Cross-sectional display can be performed in the order shown in (g). 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.

They can be displayed in the order of FIGS. 5(g), (f), 18), and (d).

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

I pulled out this crown 3 and measured the distance.

The crown 3 may be disk-shaped and partially exposed laterally from the watch case 1, but any crown 3 may be used as long as it can be converted into distance data by moving on a map.

In the above embodiment, a flag 1" or " is used to indicate the uphill or downhill slope for every two contour lines as altitude data.
0'' was used, but it does not necessarily have to be an equal straight line as long as it shows a change in altitude.

〔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 therefore, in mountain climbing, etc., where information regarding the state of altitude change is particularly required, it is possible to know that information at a glance. This makes it extremely 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. 36...Scale counter. 37... Arithmetic circuit. 38...Distance register. 40...RAM control unit. 41...RAM. 42...Pattern creation section. S+...Altitude lowering switch. S2...Altitude increase switch. S3... Distance measurement switch. Patent Applicant: Casio Computer Co., Ltd. (a)
(b) (c) (d)
(e) (f) ((]) 5th
figure

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; A distance display device comprising an altitude measuring means for storing data as data, and an altitude difference display control means for displaying an altitude difference of the route based on the distance data and the altitude data.