A traffic light

Abstract

A traffic signal light, whose display screen is divided into two groups according to the different direction symbols displayed, wherein the direction symbols displayed on one group of display screens are straight ahead symbols, and the direction symbols displayed on the other group of display screens are left turn symbols and U-turn symbols, and the same group of display screens is further divided into a main display screen and a sub-display screen, and each main display screen is divided into a direction symbol display area and a large color block display area, and the large color block display area of ​​each main display screen integrates the display of three signals of red light, green light and yellow light, that is, it changes cyclically in the order of red, green and yellow, corresponding to the cyclic change of the three signals of red light, green light and yellow light. The present invention can meet the requirements of separately displaying different guiding directions under the condition of limited size of the traffic signal light, and make the three signals of red light, yellow light and green light of each guiding direction have the largest possible display area, thus solving various problems caused by the small visible area of ​​the signal light in the prior art, and can be actually applied.

Description

Technical Field

[0001] The invention relates to a traffic signal lamp, in particular to a traffic signal lamp which displays three signals: red light, yellow light and green light. Background Art

[0002] Traffic lights that display three types of signals, red, yellow, and green, are commonly known as traffic lights. In the prior art, both traditional traffic lights that use light bulbs to display signals and modern traffic lights that use LED displays to display signals have the problem of small visible areas, which often causes the rear vehicle's line of sight to be blocked by large vehicles in front and unable to see the signal lights, often causing the rear vehicle driver to passively run red lights and cause violations or even accidents. In order to avoid such unnecessary violations and traffic accidents, the current solution is to require the rear vehicle driver to slow down or even stop driving, wait to pull away from the front vehicle until the traffic light can be seen before determining whether it can pass. This will actually seriously reduce the traffic efficiency of the intersection and aggravate congestion at the intersection.

[0003] Furthermore, the three types of traffic lights in the prior art, namely red, yellow and green, are displayed separately using different lights. If the display area of ​​the traffic lights is simply increased to solve the problem of small visible area, the size of the entire traffic light will be too large and inconvenient to implement. Moreover, many traffic lights also require different directions to be displayed separately. If the area of ​​each traffic light is simply increased, the overall size of the traffic light will be too large and difficult to be used in practice. Summary of the invention

[0004] The purpose of the present invention is to provide a traffic signal light which can satisfy the requirement of displaying different guiding directions separately and can display the three signals of red light, yellow light and green light of each guiding direction in a large area, thereby solving various problems caused by the small visible area of ​​the traffic signal light.

[0005] The present invention is implemented as follows: a traffic signal light, comprising a display screen for displaying three signals, namely, a red light, a yellow light, and a green light, wherein the display screen is divided into two groups according to different direction symbols displayed, wherein the direction symbols displayed by one group of display screens are straight ahead symbols, and the direction symbols displayed by the other group of display screens are left turn symbols and U-turn symbols;

[0006] In the same set of display screens, there are main display screens and sub-display screens, and the sub-display screens are arranged side by side next to the main display screen;

[0007] Each main display screen is divided into two display areas, namely, a direction symbol display area for displaying direction symbols and a large color block display area for displaying large area colors. The color displayed on each secondary display screen is consistent with the color displayed on the large color block display area of ​​the main display screen in the same group;

[0008] The large color block display area of ​​each main display screen integrates the display of three signals: red light, green light, and yellow light. That is, it changes in the order of red, green, and yellow, corresponding to the cyclic changes of the three signals: red light, green light, and yellow light.

[0009] The colors displayed in the direction symbol display area of ​​each main display screen are red and green. When the large color block display area of ​​the main display screen displays a red light signal, the direction symbol display area in the same main display screen displays red; when the large color block display area of ​​the main display screen displays a yellow light signal, the direction symbol display area in the same main display screen displays green or yellow; when the large color block display area of ​​the main display screen displays a green light signal, the direction symbol display area in the same main display screen displays green.

[0010] As a best implementation, the main display screen has a rectangular shape with a side length of not less than 30×30 cm.

[0011] As a best implementation, the height of the secondary display screen is smaller than the height of the main display screen.

[0012] As a best implementation, there are two main display screens in the group of display screens displaying the straight symbol, and the sub-display screen is arranged between the two main display screens.

[0013] As the best implementation mode, there are two main display screens in the group of display screens displaying left turn signs and U-turn signs, and the sub-display screen is arranged between the two main display screens. The direction symbol display areas of the two main display screens respectively display the left turn sign and the U-turn sign.

[0014] As a best implementation, the two groups of display screens are arranged in a row horizontally, and a countdown display screen is provided below the two groups of display screens, and the countdown display screen is composed of a plurality of small display screens arranged in a row horizontally;

[0015] When a certain main display screen displays a yellow light signal, all small display screens of the countdown display screen display yellow uniformly, and in the countdown period before the end of the yellow light signal, each small display screen turns off in turn;

[0016] When a certain main display screen displays a green light signal, all small display screens of the countdown display screen display green uniformly, and in the countdown period before the end of the green light signal, each small display screen turns off in turn;

[0017] When all the main display screens uniformly display a red light signal, all the small display screens of the countdown display screen uniformly display red.

[0018] As a best implementation manner, during the countdown period when the red light signal uniformly displayed on all the main display screens is about to end, the small display screens of the countdown display screen are turned off in sequence.

[0019] As the best implementation method, a dedicated right-turn display screen is provided, which is divided into two display areas, namely a right-turn symbol display area for displaying the right-turn symbol and a large color block display area for displaying a large area of ​​color.

[0020] As the best implementation, the right turn symbol display area of ​​the right turn dedicated display screen keeps displaying green, and the large color block display area of ​​the right turn dedicated display screen displays flashing yellow.

[0021] As the best implementation, a column fixed to the ground is provided, a horizontal bar is fixed to the top of the column, all the display screens are fixed on the horizontal bar, and a luminous lamp post is installed on the column.

[0022] The advantages of the present invention are: the large color block display area of ​​each main display screen that displays the guiding direction integrates the display of the three signals of red light, yellow light and green light, and the display area of ​​a main display screen determines the display area of ​​the three signals of red light, yellow light and green light in the direction indicated by the main display screen at the same time. Therefore, the present invention only needs to make a relatively small number of main display screens larger, so that the three signals of red light, yellow light and green light in each guiding direction can be displayed in a large area at the same time, so that under the condition of the limited overall size of the traffic signal light, the requirements for separate display of different guiding directions can be met, and the three signals of red light, yellow light and green light in each guiding direction can be displayed in as large an area as possible. Furthermore, since the color displayed by each secondary display screen is consistent with the color displayed by the large color block display area of ​​the main display screen in the same group, each secondary display screen plays a role in further expanding the display area of ​​the three signals of red light, yellow light and green light, so that these three signals can obtain a larger display area under the condition of the limited overall size of the traffic signal light. Therefore, the present invention solves various problems caused by the small visible area of ​​the traffic signal light in the prior art, and can be actually applied. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0024] Figure 2 It is a structural diagram of embodiment 2 of the present invention. DETAILED DESCRIPTION

[0025] To facilitate understanding of the present invention, the present invention is described more fully below. Preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. The purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0026] Embodiment 1

[0027] See also Figure 1 According to the present invention, a traffic signal light includes a display screen for displaying three signals: red light, yellow light, and green light. The display screens are divided into two groups according to the different direction symbols displayed, wherein the direction symbol displayed by one group of display screens 1 is a straight ahead symbol, and the direction symbol displayed by the other group of display screens 2 is a left turn symbol and a U-turn symbol. In the same group of display screens 1, there are a main display screen 3 and a sub-display screen 4, and the sub-display screen 4 is arranged side by side next to the main display screen 3. Similarly, in the same group of display screens 2, there are a main display screen 5 and a sub-display screen 6, and the sub-display screen 6 is arranged side by side next to the main display screen 5.

[0028] Each main display screen is divided into two display areas, namely, direction symbol display area a for displaying direction symbols and large color block display area b for displaying large area colors, and large color block display area b surrounds direction symbol display area a. Each secondary display screen only displays colors, and the colors displayed are consistent with the colors displayed in large color block display area b of the main display screen in the same group.

[0029] The large color block display area b of each main display screen integrates the display of three signals: red light, green light, and yellow light. That is, the large color block display area b changes cyclically in the order of red, green, and yellow, corresponding to the cyclic changes of the three signals: red light, green light, and yellow light.

[0030] The colors displayed in the direction symbol display area a of each main display screen are red and green. When the large color block display area b of the main display screen displays a red light signal, the direction symbol display area a of the same main display screen displays red; when the large color block display area b of the main display screen displays a yellow light signal, the direction symbol display area a of the same main display screen displays green or yellow; when the large color block display area b of the main display screen displays a green light signal, the direction symbol display area a of the same main display screen displays green.

[0031] As a best implementation, the shape of each main display screen is a rectangle with a side length of not less than 30×30 cm.

[0032] As a best implementation, the height of the secondary display screen is smaller than the height of the main display screen, which can reduce the manufacturing cost of the traffic signal light.

[0033] As a best implementation, there are two main display screens 3 in a group of display screens 1 displaying the straight symbol, and a sub-display screen 4 is provided between the two main display screens. The two main display screens 3 synchronously display the same signal. It should be noted that, as another implementation with simplified performance, there can also be only one main display screen 3 in a group of display screens 1 displaying the straight symbol.

[0034] As a best embodiment, there are two main display screens 5 in a group of display screens 2 that display left turn signs and U-turn signs, and a sub-display screen 6 is provided between the two main display screens. The direction symbol display areas a of the two main display screens 5 display the left turn sign and the U-turn sign respectively. It should be noted that, as another embodiment of simplified functions, there can also be only one main display screen 5 in a group of display screens 2 that display left turn signs and U-turn signs, and the direction symbol display area a of one main display screen 5 can display the left turn sign and the U-turn sign at the same time.

[0035] As a best embodiment, two groups of display screens 1 and 2 are arranged in a row horizontally, and a countdown display screen 7 is provided below the two groups of display screens. The countdown display screen 7 is composed of a plurality of small display screens 8 arranged in a row horizontally. When a main display screen displays a yellow light signal, all the small display screens 8 of the countdown display screen 7 are uniformly displayed in yellow, and during the countdown period before the end of the yellow light signal, the small display screens 8 are sequentially turned off. When a main display screen displays a green light signal, all the small display screens 8 of the countdown display screen 7 are uniformly displayed in green, and during the countdown period before the end of the green light signal, the small display screens 8 are sequentially turned off. When all the main display screens uniformly display a red light signal, all the small display screens 8 of the countdown display screen 7 are uniformly displayed in red.

[0036] As the best implementation, during the countdown period when the red light signal displayed uniformly on all main display screens is about to end, each small display screen 8 of the countdown display screen 7 is turned off in turn. Thus, the countdown display function when the red light signal is about to end is increased.

[0037] The way that each small display screen 8 of countdown display screen 7 goes out in sequence can be to go out one by one in sequence, and this way is applicable to the countdown of longer time, for example 9 seconds countdown, and is applicable to the countdown before the end of green light signal, and is also applicable to the countdown before the end of red light signal.

[0038] The small display screens 8 of the countdown display screen 7 can also be extinguished in groups, for example, three small display screens 8 are grouped together, and the three groups of small display screens are extinguished in groups. This method is suitable for a shorter countdown, such as a 3-second countdown, and is suitable for the countdown before the end of the yellow light signal.

[0039] It should be noted that, as another implementation method of simplifying the functions, the present invention may also be without the countdown display screen 7 .

[0040] As the best embodiment, the present embodiment is also provided with a right-turn special display screen 9, which is divided into two display areas, namely, a right-turn symbol display area 9c for displaying a right-turn symbol and a large color block display area 9d for displaying a large area of ​​color. The color displayed by the right-turn special display screen 9 is determined according to the traffic rules actually formulated locally. For example, if the local traffic rules have no restrictions on right-turn vehicles, the right-turn symbol display area 9c can keep displaying green, and the large color block display area 9d continues to display flashing yellow; if the local traffic rules have restrictions on right-turn vehicles, then in the time period of static right turn, the right-turn symbol display area 9c and the large color block display area 9d both display red, in the time period of allowing right turn, the right-turn symbol display area 9c and the large color block display area 9d both display green, and when the time period of allowing right turn is about to end, the right-turn symbol display area 9c displays green, and the large color block display area 9d displays flashing yellow.

[0041] As the best implementation method, this embodiment is provided with a column 10 fixed to the ground, a horizontal bar 11 is fixed to the top of the column 10, all display screens are fixed on the horizontal bar 11, and a luminous lamp post 12 is installed on the column 10 to provide lighting for passers-by.

[0042] The working principle of this embodiment is illustrated below with a complete signal change cycle. Since the right-turn dedicated display screen and the control method of the right-turn vehicle have been described in detail above, the signal change process and the control of the vehicle described below do not include the right-turn dedicated display screen and the right-turn vehicle.

[0043] The initial state is that all display screens display red. This indicates that vehicles in all directions are prohibited from passing. As time goes by, the two main display screens 5 displaying the left turn symbol and the U-turn symbol are ready to turn green. During the countdown period before turning green, the small display screens 8 of the countdown display screen 7 begin to go out in sequence from left to right. When all the small display screens 8 are completely turned off, the direction symbol display area a and the large color block display area b of the two main display screens 5 immediately turn green, and all the small display screens 8 of the countdown display screen 7 also immediately turn green. This indicates that the left turn and the U-turn are green light signals, and vehicles turning left and turning around are allowed to pass.

[0044] As time goes by, when the set time for left turn and U-turn is over, the large color block display area b of the two main display screens 5 immediately turns yellow. At this time, the direction symbol display area a of the two main display screens 5 can either remain green or turn yellow. At the same time, all the small display screens 8 of the countdown display screen 7 turn yellow and start to go out from left to right. This indicates that the left turn and U-turn are yellow light signals, requiring left turn and U-turn vehicles to prepare to stop. When all the small display screens 8 are completely extinguished, the direction symbol display area a of the two main display screens 5 and the large color block display area b immediately turn red, indicating that the left turn and U-turn are red light signals, and left turn and U-turn vehicles are prohibited from passing.

[0045] When the direction symbol display area a and the large color block display area b of the two main display screens 5 turn red, the direction symbol display area a and the large color block display area b of the other two main display screens 3 displaying the straight-ahead symbol turn green, and all the small display screens 8 of the countdown display screen 7 also turn green. At this time, it means that the straight-ahead light is green and vehicles can pass.

[0046] As time goes by, when the set straight-through passage time is over, the large color block display area b of the two main display screens 3 immediately turns yellow. At this time, the direction symbol display area a of the two main display screens 3 can either remain green or turn yellow. At the same time, all the small display screens 8 of the countdown display screen 7 turn yellow and begin to go out from left to right. This indicates that the straight-through signal is a yellow light, and the straight-through vehicle is required to prepare to stop. When all the small display screens 8 are off, the direction symbol display area a and the large color block display area b of the two main display screens 3 immediately turn red, and all the small display screens 8 of the countdown display screen 7 also turn red. This indicates that the straight-through signal is a red light, and straight-through vehicles are prohibited from passing. At this point, the entire traffic light returns to the initial state where all display screens display red.

[0047] Embodiment 2

[0048] See also Figure 2 The difference between this embodiment and the first embodiment is that a set of display screens consisting of a set of display screens 1 for displaying straight ahead symbols, a set of display screens 2 for displaying left turn symbols and U-turn symbols, and a countdown display screen 7 are added. The structural layout and signal change rules of the two sets of display screens are exactly the same as those of the first embodiment. The signal change processes of the two sets of display screens are completely synchronized. The advantage of this embodiment is that it has a larger display area than the first embodiment.

[0049] It should be noted that the display screens described in the present invention can be display screens with independent housings in physical structure, or display screens with the same physical structure. For the latter, the display screens described in the present invention are different display areas in the same large display screen.

[0050] It should be noted that the display screen described in the present invention is not limited to the LED display screen. With the development of technology, display screens that are lighter and thinner than the LED display screen are also suitable for the present invention.

[0051] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. For ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention. For example, signal lights indicating other traffic guidance can be added on the basis of the present invention, which all belong to the protection scope of the present invention. The protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A traffic signal light, comprising a display screen for displaying three signals: red light, yellow light and green light, characterized in that: The display screens are divided into two groups according to the different direction symbols displayed, one group of display screens displays direction symbols of straight ahead, and the other group of display screens displays direction symbols of left turn and U-turn; In the same set of display screens, there are main display screens and sub-display screens, and the sub-display screens are arranged side by side next to the main display screen; Each main display screen is divided into two display areas, namely, a direction symbol display area for displaying direction symbols and a large color block display area for displaying large area colors. The color displayed on each secondary display screen is consistent with the color displayed on the large color block display area of ​​the main display screen in the same group; The large color block display area of ​​each main display screen integrates the display of three signals: red light, green light, and yellow light. That is, it changes in the order of red, green, and yellow, corresponding to the cyclic changes of the three signals: red light, green light, and yellow light. The colors displayed in the direction symbol display area of ​​each main display screen are red and green. When the large color block display area of ​​the main display screen displays a red light signal, the direction symbol display area in the same main display screen displays red; when the large color block display area of ​​the main display screen displays a yellow light signal, the direction symbol display area in the same main display screen displays green or yellow; when the large color block display area of ​​the main display screen displays a green light signal, the direction symbol display area in the same main display screen displays green; There are two main display screens in the group of display screens displaying the straight symbol, and the sub-display screen is arranged between the two main display screens; There are two main display screens in the group of display screens displaying left turn signs and U-turn signs, the sub-display screen is arranged between the two main display screens, and the direction symbol display areas of the two main display screens display left turn signs and U-turn signs respectively; The two groups of display screens are arranged in a row horizontally, and a countdown display screen is provided below the two groups of display screens, the countdown display screen being composed of a plurality of small display screens arranged in a row horizontally; When a certain main display screen displays a yellow light signal, all small display screens of the countdown display screen display yellow uniformly, and in the countdown period before the end of the yellow light signal, each small display screen turns off in turn; When a certain main display screen displays a green light signal, all small display screens of the countdown display screen display green uniformly, and in the countdown period before the end of the green light signal, each small display screen turns off in turn; When all the main display screens uniformly display a red light signal, all the small display screens of the countdown display screen uniformly display red.

2. A traffic signal lamp as claimed in claim 1, characterized in that: The main display screen has a rectangular shape with a side length of not less than 30×30 cm.

3. A traffic signal lamp as claimed in claim 1, characterized in that: The height of the secondary display screen is smaller than the height of the main display screen.

4. A traffic signal lamp as claimed in claim 1, characterized in that: During the countdown period when the red light signal displayed uniformly on all the main display screens is about to end, each small display screen of the countdown display screen is turned off in sequence.

5. A traffic signal lamp as claimed in claim 1, characterized in that: A special display screen for right turn is provided, which is divided into two display areas, namely a right turn symbol display area for displaying the right turn symbol and a large color block display area for displaying a large area of ​​color.

6. A traffic signal lamp as claimed in claim 5, characterized in that: The right-turn symbol display area of ​​the right-turn dedicated display screen keeps displaying green, and the large color block display area of ​​the right-turn dedicated display screen displays flashing yellow.

7. A traffic signal lamp as claimed in claim 1, characterized in that: A column fixed to the ground is provided, a horizontal bar is fixed on the top of the column, all the display screens are fixed on the horizontal bar, and a luminous lamp post is installed on the column.

Images