JPH0611449Y2 - Speed display - Google Patents

Description

[Technical field of the invention] The present invention relates to a speed display device for a high-speed railway having a travel instruction speed display function by an ATC signal and a travel speed display function by a bar graph.

[Technical background of the device and its problems]

FIG. 6 (a) shows a front display panel of a conventional speed display device. On the display panel (1) of the speed display device, the main speed display bar graph that displays the speed signal from the speed sensor in a bar
(2), a sub-speed display numeral display (3) for numerically displaying the speed signal, and an ATC received and arranged corresponding to the corresponding speed scale position of the main speed display bar graph (2).
A plurality of ATC signal indicators (4) for numerically indicating the traveling instruction speed of the signal, and a sub-ATC for numerically displaying the traveling instruction speed.
A numerical display for display (5) and a vernier scale section (6) for enlarged display of the main speed display bar graph are provided.

The vernier scale (6) is designed to be displayed in conjunction with the main speed display bar graph (2) when the traveling speed of the train falls within ± 10 km / h of the traveling instruction speed of the ATC signal. ,
The emission color of the light-emitting element forming the bar graph (2) is the same color over the entire display range, and the emission color of the light-emitting element of the vernier scale (6) is the same as the emission color of the bar graph (2). Since it is set to 10km, which is the instructed speed of the ATC signal
/ h It is hard to see at a glance that the vehicle has reached a low speed, and if it is overlooked as it is, the traveling speed exceeds the traveling instruction speed of the ATC signal, the ATC device automatically brakes, and as a result, the train speed is proportionally controlled. However, there are some drawbacks such as poor ride comfort and difficulty in driver's braking operation.

Also, in order to make it easier to read the running speed displayed on the bar graph for the main speed display (2), the scale dividing line (2a) is shown below the bar graph (2), and the scale is further set at 50km / h intervals. Number
(2b) is shown. When the surroundings are bright in the daytime, the scale dividing line (2a) and the scale numbers (2b) can be attached and read, but when the surroundings are dark at night or when entering a tunnel, the scale dividing line (2a) and scale numbers ( 2b) became invisible, and the running speed value displayed in the bar graph (2) was very difficult to read, and there was a drawback that it was hardly read.

In addition, the main speed display bar graph (2) is displayed on the display panel (1).
From the viewpoint of design and effective utilization of the area, the shape is bent at a certain angle at the scale of 168km / h. Then, as shown in FIG. 6 (b), the light emitting element (7) in the inclined portion is arranged so as to be inclined along the inclination line. Therefore, a gap is formed at the boundary between the horizontal portion and the inclined portion.
(9) can be done and it looks bad. Also, as shown in FIG. 6 (c),
Since the light-emitting element mounting lands (8) are arranged obliquely, the mounting dimensions are likely to vary, and there are drawbacks such as unevenness when mounted. In addition, it is difficult to calculate the angle α when designing.

[Purpose of device]

It is an object of the present invention to provide a speed display device that eliminates the above-mentioned drawbacks.

[Outline of device]

According to the present invention, the main speed display is provided on the light emitting elements arranged in the range of ± 10 km / h on the speed scale of the main speed display bar graph corresponding to the traveling instruction speed displayed numerically by each ATC signal display. ± 10km / h for the light-emitting element that uses a light-emitting color different from the light-emitting color of the light-emitting element for general speed range display arranged in the remaining part of the bar graph for vernier scale By using the light emitting element of the same emission color as the light emitting element in the range, it was noticed at a glance that the vehicle reached within 10 km / h of the traveling instruction speed of the ATC signal. In addition, a surface emitting element is arranged on the back surface of the panel corresponding to each scale number written on the panel surface at every predetermined scale interval of the main speed display bar graph, and the lighting brightness of this surface emitting element is set to the main speed. By adjusting the brightness so that it is lower than the lighting brightness of the display bar graph and other numerical displays, it is possible to easily read the running speed by the bar graph even when running in a tunnel or at night.

Further, each light emitting element forming the inclined portion of the main speed display bar graph is arranged in a stepwise manner with one corner of the light emitting element aligned on a straight line inclined by a predetermined angle, and steps between the upper and lower ends of the light emitting element row are arranged. By constructing the main speed display bar graph in a structure in which opaque masking having a width covering each of the above is attached over the entire length of the inclined portion and the horizontal portion,
No gap was formed at the boundary between the horizontal portion and the inclined portion, and the manufacturing was easy.

[Example of device]

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

A speed display device according to an embodiment of the present invention is shown in FIGS. 1 (a), (b), (c) and FIG. The main speed display bar graph (12) is 1
The horizontal part (12a) from 168km / h to 300km / h arranged along the horizon of the light emitting element (7) displaying 2km / h individually,
As shown in FIG. 1 (b), one corner of the light emitting element (7) is on a straight line (13) whose intersection angle with the horizontal line is set to a predetermined angle θ.
(7a) is aligned and is arranged from 0km / h to 168km / h sloped part (12b), and further sloped part (12b)
Attach opaque masking (14), (15) having a width to cover the steps (7b), (7c) at the upper and lower ends of the light emitting element array over the entire length of the inclined portion (12b) and the horizontal portion (12a). It has a structure. Then, the main speed display bar graph (1
The scale dividing line (16) is marked on the panel surface along the lower side of 2), and the scale dividing line (16) is 0, 50, 100, 150, 200, 250, 300.
At positions corresponding to km / h, a scale number (17) representing the speed is written on the panel surface. Further, the surface emitting element (18) is attached to the rear surface side of the panel at the position of each scale number (17).

In addition, above the main speed display bar graph (12), ATC signal indicators (21) to (26) for numerically displaying the travel instruction speed of the received ATC signal are displayed as the travel instruction speed type X (low speed). (Running to stop), 30, 70, 110, 160, 210 km / h, 6 in total, each located at a position corresponding to the speed scale of the bar graph (12). Further, below the horizontal part of the main speed display bar graph (12), a vernier scale part (31) is arranged for enlarged display of the bar graph (12). It is 10 km / h in units of 1 km / h.
Display the range of. Below the vernier scale portion (31), there are arranged a sub-ATC display numeral display (41) and a sub-speed display numeral display (42).

Also, the speed scale of the main speed display bar graph (12) corresponding to the ATC signal display (22), (23), (24), (25), (26) is 30 km / h, 70 km / h. , 110km / h, 160km / h, 210km / h, low speed range of 10km / h (30B), (70B), (110B), (160
B), (210B) and high-speed side 10km / h range (30A), (70A), (110A), (1
60A), (210A) and the light emitting element (7A) is different from the light emission color of the light emitting element (7) for displaying the general speed range, which is placed in the remaining part of the bar graph (12). Use the color one. The light-emitting element that constitutes the vernier scale (31) also uses a light-emitting element (7A) having the same emission color as the light-emitting element (7A) in the low-speed side 10 km / h and high-speed side 10 km / h ranges. .

FIG. 2 shows a block diagram of the speed indicator of one embodiment of the present invention having the above structure. ROM mainly for microprocessor (51)
(52), RAM (53), speed signal counter (54), traveling instruction speed counter (55), bar graph drive circuit (56), numeral display drive circuit (57), brightness adjustment circuit (59) Is connected to the brightness adjusting circuit (59).
The gate circuit (61) is connected. In addition, the gate circuit (6
A surface emitting element drive circuit (58) is connected to 1).

Next, the operation of the speed indicator according to the embodiment of the present invention will be described.

When the train runs, the ATC signal which is the target travel speed is transmitted from the ATC device, and the received ATC signal, that is, the travel instruction speed signal (63) is transmitted to the travel instruction speed counter (55) as shown in FIG. Counting and microprocessor
After performing 2 out of 3 majority logic operation in (51), AT
Among the C signal indicators (21) to (26), the ATC signal indicator corresponding to the traveling instruction speed is turned on and at the same time the traveling instruction speed is displayed numerically on the sub ATC display numeral display (41).

Also, the speed signal (62) from the speed sensor of the train is counted by the speed signal counter (54), the bar graph drive circuit (56) is operated in response to the speed signal, and the main speed display bar graph (12) ) Is turned on and at the same time, the numeral display drive circuit (57) is operated in response to the speed signal (62), and the speed is displayed numerically on the sub speed display numeral display (42).

Bar graph drive circuit (56) and numeral display drive circuit (57)
Is a time-division lighting with a certain fixed period, and the brightness is adjusted by changing the pulse width of the brightness adjusting circuit (59). The surface emitting element (1) attached to the position of the scale number (17) provided on the scale dividing line (16) of the main speed display bar graph (12)
The brightness adjustment of 8) is performed by the brightness adjustment circuit (60) which operates by using the time-division pulse width (b) of the bar graph drive circuit (56) and the numeric display drive circuit (57) as a clock. Now, the reset signal pulse (a) input to the bar graph drive circuit (56) and the numeric display drive circuit (57) determines the time division cycle. As shown in the timing chart of FIG. 3, the output of the brightness adjusting circuit (59) of both drive circuits (56) and (57) becomes the pulse width of (b) by one shot. The output of the brightness adjustment circuit (60) that receives the output pulse of (b) operates at the rising edge of the pulse width (b), and the pulse output (c), (d), (e),
Get the pulse widths of (f), (g), (h), and (j). Each of these pulse outputs (c), (d), (e), (f), (g), (h), and (j) is output at a cycle of once every 7 times of the reset pulse (a). It

Each output pulse (c), (d), (e), (f), (g), (j) and brightness adjustment circuit
If the output (b) of (59) is ANDed by the gate circuit (61), the output of the gate circuit (61) will be (k), (l), (m), (n), (p), ( q), (r)
Output pulse width. This output pulse width (k), (l), (m),
The surface emitting element drive circuit (58) is operated by (n), (p), (q) and (r). As a result, the respective surface emitting elements (18) behind the 7 scale numbers (17) of 0, 50, 100, 150, 200, 250, 300 are respectively
Main speed display bar graph (12), ATC signal display (21) ~
(26), the auxiliary ATC display numeral display (41) and the auxiliary speed display numeral display (42) are energized once with the same pulse width while energized 7 times with the pulse width (b). In this case, the lighting brightness is lower than that of the bar graph (12) and each numerical display, and the lighting is dim. Even if the brightness of lighting of the surface emitting element (18) is low, the function to make the scale number (17) stand out when the surroundings are dark is sufficient, and the power consumption by providing the surface emitting element (18) Has the effect of suppressing the increase in the minimum.

Returning to Fig. 1 (a) and (c) again, the traveling instruction speed of the ATC signal at present is 210 km / h, and the ATC signal indicator (2
It is assumed that 210 is displayed as a number in 6). 10km / h from the instruction speed of 210km / h
When entering the low range (210B), main speed display bar graph (12)
The light-emitting element (7A) with a different emission color from the light-emitting element (7) for displaying the general speed range lights up to display the speed, and the driver enters the range (210B) 10 km / h lower than the instruction speed. Notify that. At the same time, the vernier scale (31) composed of the light-emitting element (7A) in the lower range (210B) and the light-emitting element (7A) of the same color lights up at 10km / h, and the running speed is reduced by 1km / h. indicate. From the above two displays with different display colors from the general display color, the driver knows that he is approaching the target speed displayed by the ATC signal display (26), and manually operates to loosen the acceleration, Target speed of train is 210km / h
It is possible to prevent the emergency brake from being applied from the ATC device as soon as the value exceeds the limit.

In addition, the running speed of the train gradually decreases, approaching the speed of 160km / h of the ATC signal display (25), which is one step lower, and
When entering the range (160A) that is 10km / h higher than 60km / h, the light-emitting element (7A) with a different emission color from the light-emitting element (7) for displaying the general speed range of the main speed display bar graph (12) lights up. Then, the speed is displayed, and at the same time, the vernier scale section (31) composed of the light-emitting element (7A) of the same color as the light-emitting element (7A) in the 10 km / h higher range (160A) lights up and the traveling speed is changed. The bar is displayed in units of 1 km / h. As a result, the driver knows that the traveling speed is about to deviate from the target speed indicated by the ATC signal display (26), and performs an operation to increase the speed. It is possible to avoid a rapid speedup from the ATC device. Therefore,
It is possible to prevent poor riding comfort due to emergency braking and sudden acceleration, and a flat wheel phenomenon due to emergency braking.

FIG. 4 shows the pitch dimensions of the mounting lands of the light emitting element (7) of the main speed display bar graph (12). When installing the mounting land (71) of the light emitting element (7), set a certain angle θ and measure the lateral dimension.
(72) is the same as the horizontal dimension (74) of the horizontal part (12a), and the vertical method dimension (73) can be provided with the mounting land (71) with a certain fixed dimension. It's easy.
In addition, as shown in FIG. 1 (b), the light emitting element (7) is not mounted in a straight line at the curved corner portion (12c) which shifts from the horizontal portion (12a) to the inclined portion (12b), and is linear. Since it is attached, the drawbacks of the conventional structure in which a gap is formed are eliminated. Also,
The steps (7b), (7c) at the upper and lower ends of the light emitting element (7) are hidden by attaching opaque masking (14), (15),
Since the appearance that the bar graph extends linearly is obtained, there are advantages that it looks good and is easy to see. (See FIG. 1 (b)) The present invention is not limited to the above-described embodiment, but can be modified and implemented as follows.

[A] In FIG. 2, the brightness adjusting circuit (60) is followed by the gate circuit.
(61) is provided, and the brightness of the surface emitting element (18) is faint, but the gate circuit (61) is removed and the output pulses (c), (d), (e) of the brightness adjustment circuit (60) are removed. ), (f), (g), (h), and (j), the surface emitting element drive circuit (58) may be operated to increase the brightness of the surface emitting element (18).

[B] In FIGS. 1 (a) and 1 (b), the ATC signal indicator (2
2), (23), (24), (25), (26) corresponding main speed display bar graph (12) speed scale 30km / h, 70km / h, 110k
Centering around m / h, 160km / h, 210km / h, low-speed side 10km / h range (30B), (70B), (110B), (160B), (210B) and high-speed side 10km / h range (30A ), (70A), (110A), (160A), (210A) and the light emitting element (7A) is arranged in the remaining portion of the bar graph (12) for general speed range display Use a light-emitting element (7) that has a different emission color, and use the light-emitting element that constitutes the vernier scale (31) as the low-speed side 10 km / h and the high-speed side.
Although the same light emitting element (7A) as the light emitting element (7A) in the range of 10 km / h was used, for example, the light emitting element (7) for displaying the general speed range was orange, and the ranges (210A) and (210B) Red light-emitting element (7
R), (160A) and (160B) with the green light emitting element (7G), and (110A)
A yellow light emitting element (7Y) is used for (110B), a blue light emitting element (7B) is used for (70A) and (70B), and a white light emitting element (7W) is used for (30A) and (30B). As shown in Fig. 5, the vernier scale (31)
Light emitting elements (7R), (7G), (7Y), from the side closer to the scale dividing line (16)
(7B) and (7W) are arranged in this order and configured. By doing so, there is an advantage that it is possible to see at a glance which speed range is displayed on the vernier scale portion (31).

[Effect of device]

As described above in detail, according to the present invention, a main speed display bar graph for displaying the speed signal from the speed sensor in a bar, and a sub-speed display numerical display for displaying the speed signal as a number,
A plurality of ATC signal indicators, which are arranged corresponding to the corresponding speed scale positions on the main speed display bar graph, and which numerically display the traveling instruction speed of the received ATC signal, and a sub ATC which numerically displays the traveling instruction speed. In a speed display device having a numerical display for display and a vernier scale portion for enlarging display of the main speed display bar graph on a front display panel, each ATC signal display corresponds to a traveling instruction speed displayed numerically. The main speed indicator bar graph has a speed scale within ± 10 km / h of the light emitting element, and the main speed indicator bar graph has a remaining portion. For the light-emitting element that has a different emission color from that of the above and that constitutes the vernier scale, the light-emitting element with the same emission color as the light-emitting element in the range of ± 10 km / h is used. Therefore, when the speed approaches the traveling instruction speed of the received ATC signal and enters the range of 10 km / h lower than the traveling instruction speed, the light emitting element of the emission color different from the general speed range lights up and the speed concerned Is displayed at the same time, and at the same time, the vernier scale section composed of light emitting elements of the same color as the low-speed side of 10 km / h lights up and the speed is displayed as a bar, so the driver can indicate the scale speed indicated by the ATC signal. You can know that you are approaching without losing sight of it, operate the manual brake etc. to loosen the acceleration,
It is possible to prevent the emergency brake from being applied from the ATC device as soon as the train exceeds the target speed. In addition, when the speed gradually decreases and enters the range of 10 km / h on the high speed side of the speed corresponding to the ATC signal display one step lower, the light emitting element of the emission color different from the general speed range lights up. The speed is displayed as a bar, and at the same time, the vernier scale composed of light emitting elements of the same color as the high-speed side of 10 km / h lights up and the speed is displayed as a bar, so the driver indicates the running speed by the ATC signal. By knowing that the target speed is about to deviate from the target speed, a speed-up operation is performed, and it is possible to avoid a sudden speed-up from the ATC device when the speed deviates from the target speed. Therefore, due to the above two effects, it is possible to prevent poor riding comfort due to emergency braking and sudden acceleration, and a flat wheel phenomenon due to emergency braking.

In addition, a surface emitting element is arranged on the back surface of the pulse corresponding to each scale number written on the pulse surface at each predetermined scale interval of the main speed display bar graph, and the lighting brightness of this surface emitting element is set to the main speed. By adjusting the brightness so that it is lower than the lighting brightness of the display bar graph and other numerical displays, the main speed display bar graph can be displayed even in a dark tunnel or at night. The scale numbers are clearly visible, and the running speed displayed on the bar can be read without fail. Further, since the speed is easy to read, the driver can spend less time looking at the speedometer, and the driver's maximum duty, which is the front confirmation operation, can be minimized.

In addition, each light emitting element forming the inclined portion of the main speed display bar graph is arranged in a staircase with one corner of the light emitting element aligned on a straight line inclined by a predetermined angle, and a step between the upper and lower ends of the light emitting element row is arranged. By constructing the bar graph for main speed display in a structure in which an opaque masking having a width covering each of the above is attached over the entire length of the inclined portion and the horizontal portion, the dimensions and the positioning of the mounting land of the light emitting element can be determined in terms of manufacturing. Further, the disadvantage of the conventional structure in which a gap is formed in the bent corner portion which shifts from the horizontal portion to the inclined portion is eliminated. Furthermore, the steps at the upper and lower ends of the light-emitting element array are masked out to give the appearance that the bar graph extends linearly from the slanted part to the horizontal part, providing a good-looking and easy-to-see bar graph for main speed display. To be done.

[Brief description of drawings]

1 (a), (b), (c) and FIG. 2 show one embodiment of the speed display device according to the present invention, and FIG. 1 (a) is a front view and FIG.
(b) is an enlarged view showing the structure of the main speed display bar graph, FIG. 1 (c) is an enlarged view showing the main speed display bar graph and the vernier scale, and FIG. 2 is a block diagram showing the circuit structure,
FIG. 3 is a timing chart of the brightness adjustment in FIG. 2, FIG. 4 is an explanatory view of an arrangement of light emitting element mounting lands of a main speed display bar graph, and FIG. 5 shows a configuration of a vernier scale portion of a modified example of the present invention. FIGS. 6 (a), (b), and (c) show a conventional speed display device, FIG. 6 (a) is a front view, and FIG. 6 (b) is a main speed display bar graph configuration. FIG. 6 (c) is an enlarged view showing the arrangement of the light emitting element mounting lands of FIG. 6 (b). 7, 7A ... Light emitting element, 7b, 7c ... Step 11 ... Display panel 12 ... Main speed display bar graph 12a ... Horizontal portion, 12b ... Inclined portion 14, 15 ... Masking, 16 ... Scale division line 17 ... Scale number, 18 Surface emitting elements 21 to 26 ATC signal display 31 Vernier scale 41 Numerical display for sub ATC display 42 Numerical display for sub speed 51 51 Microprocessor 56 Bar graph drive circuit 57 Numerical display Driving circuit 58 ... Surface emitting element driving circuit 59 ... Luminance adjusting circuit, 60 ... Luminance adjusting circuit 61 ... Gate circuit

Claims (3)

[Scope of utility model registration request] 1. A main speed display bar graph for displaying a speed signal from a speed sensor as a bar, a sub speed display numerical display for displaying the speed signal as a number, and a speed corresponding to the main speed display bar graph. A plurality of ATC signal indicators which are arranged corresponding to the scale positions and numerically display the traveling instruction speed of the received ATC signals, a sub-ATC display numeral display which numerically displays the traveling instruction speed, and the main speed display In a speed display device having an enlarged display vernier graduation portion of a display bar graph on a front display panel, the speed of a main speed display bar graph corresponding to the travel instruction speed displayed numerically by each ATC signal display. The emission color of the light emitting element for general speed range display, which is arranged in the remaining part of the main speed display bar graph for the light emitting element arranged in the range of ± 10 km / h of the scale Different emission colors and using those to a light-emitting element constituting the vernier scale part of the ± 10 km
A speed display device characterized by using a light emitting element of the same emission color as a light emitting element in the range of / h. 2. A surface light emitting element is arranged on the back surface of the panel corresponding to each graduation number written on the panel surface at a predetermined graduation interval of the main speed display bar graph, and the lighting brightness of the surface light emitting element is set. 2. The speed display device according to claim 1, wherein the brightness is adjusted to be lower than the lighting brightness of the main speed display bar graph and each of the numerical indicators. 3. The main speed display bar graph has a width in which the respective light emitting elements forming the inclined portion are arranged in a staircase pattern along a predetermined inclination, and the stepped portions at the upper and lower ends of the light emitting element row are covered respectively. The speed display device according to any one of claims 1 and 2, which has a structure in which opaque masking is attached over the entire length of the inclined portion and the horizontal portion.